Trace number 1595664

Some explanations

A solver is run under the control of another program named runsolver. runsolver is in charge of imposing the CPU time limit and the memory limit to the solver. It also monitors some information about the process. The trace of the execution of a solver is divided into four (or five) parts:
  1. SOLVER DATA
    This is the output of the solver (stdout and stderr).
    Note that some very long lines in this section may be truncated by your web browser ! In such a case, you may want to use the "Download as text" link to get the trace as a text file.

    When the --timestamp option is passed to the runsolver program, each line output by the solver is prepended with a timestamp which indicates at what time the line was output by the solver. Times are relative to the start of the program, given in seconds. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock time.

    As some 'v lines' may be very long (sometimes several megabytes), the 'v line' output by your solver may be split on several lines to help limit the size of the trace recorded in the database. In any case, the exact output of your solver is preserved in a trace file.
  2. VERIFIER DATA
    The output of the solver is piped to a verifier program which will search a value line "v " and, if found, will check that the given interpretation satisfies all constraints.
  3. CONVERSION SCRIPT DATA (Optionnal)
    When a conversion script is used, this section shows the messages that were output by the conversion script.
  4. WATCHER DATA
    This is the informations gathered by the runsolver program. It first prints the different limits. There's a first limit on CPU time set to X seconds (see the parameters in the trace). After this time has ellapsed, runsolver sends a SIGTERM and 2 seconds later a SIGKILL to the solver. For safety, there's also another limit set to X+30 seconds which will send a SIGXPU to the solver. The last limit is on the virtual memory used by the process (see the parameters in the trace).
    Every ten seconds, the runsolver process fetches the content of /proc/loadavg, /proc/pid/stat and /proc/pid/statm (see man proc) and prints it as raw data. This is only recorded in case we need to investigate the behaviour of a solver. The memory used by the solver (vsize) is also given every ten seconds.
    When the solver exits, runsolver prints some informations such as status and time. CPU usage is the ratio CPU Time/Real Time.
  5. LAUNCHER DATA
    These informations are related to the script which will launch the solver. The most important informations are the command line given to the solver, the md5sum of the different files and the dump of the /proc/cpuinfo and /proc/meminfo which provides some useful information on the computer.

Solver answer on this benchmark

Solver NameAnswerCPU timeWall clock time
SAT07 reference solver: March KS 2007-02-08UNSAT 3.18351 3.18481

General information on the benchmark

NameCRAFTED/sgen/unsat/
sgen1-unsat-61-100.cnf
MD5SUM43b8e7efe061e21db6b4c047915ae87c
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.959853
Satisfiable
(Un)Satisfiability was proved
Number of variables61
Number of clauses132
Sum of the clauses size396
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 3132
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.00/0.00	c main():: ***                                   [ march satisfiability solver ]                                   ***
0.00/0.00	c main()::  **            Copyright (C) 2001-2004 M. Dufour, M. Heule, J. van Zwieten and H. van Maaren            **
0.00/0.00	c main()::   * This program may be redistributed and/or modified under the terms of the GNU Gereral Public License *
0.00/0.00	c main()::
0.00/0.00	c initFormula():: searching for DIMACS p-line....
0.00/0.00	c initFormula():: the DIMACS p-line indicates a CNF of 61 variables and 132 clauses.
0.00/0.00	c parseCNF():: parsing....
0.00/0.00	c parseCNF():: the CNF contains 0 unary clauses.
0.00/0.00	c runParser():: parsing was successful, warming up engines...
0.00/0.00	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.00/0.00	c preprocessing fase I completed:: there are now 61 free variables and 132 clauses.
0.00/0.00	c stat :: sign balance is biased by 0.081
0.00/0.00	c shorten_equivalence(): average equivalence length reduced from nan to nan
0.00/0.00	c using 3-SAT heuristics (occurence based diff)
0.00/0.00	c longest clause has size 3
0.00/0.00	c simplify_formula():: removed 0 tautological, 0 satisfied and 456 duplicate clauses
0.00/0.00	c lessRedundantTransformation():: nothing to be done.
0.00/0.00	c transformTo3SAT():: you gave me 61 variables and 132 clauses.
0.00/0.00	c transformTo3SAT():: by the way, the maximal clause length before transformation was 3.
0.00/0.00	c transformTo3SAT():: I will add 0 variables and 0 clauses!
0.00/0.00	c transformTo3SAT():: the transformation yielded 61 variabels and 132 clauses.
0.00/0.00	c main():: clause / variable ratio: ( 132 / 61 ) = 2.16
0.00/0.00	c longest clause has size 3
0.00/0.00	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.00/0.00	c dynamic_preselect_setsize :: on
0.00/0.00	c suggested doublelook initial :: 0
0.00/0.00	c main():: all systems go!
0.00/0.00	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |********************************
c |****************************************************************| 0 NC: 170 JD: 10
0.00/0.01	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |********************************
c |*********************************
c |**********************************
c |************************************
c |****************************************
c |************************************************
c |*************************************************
c |**************************************************
c |****************************************************
c |********************************************************
c |*********************************************************
c |**********************************************************
c |************************************************************
c |*************************************************************
c |**************************************************************
c |***************************************************************
c |****************************************************************| 1 NC: 1002 JD: 10
0.00/0.06	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |*****************
c |******************
c |********************
c |************************
c |*************************
c |**************************
c |****************************
c |*****************************
c |******************************
c |*******************************
c |********************************
c |*********************************
c |**********************************
c |************************************
c |****************************************
c |*****************************************
c |******************************************
c |********************************************
c |*********************************************
c |**********************************************
c |***********************************************
c |************************************************
c |*************************************************
c |**************************************************
c |****************************************************
c |*****************************************************
c |******************************************************
c |*******************************************************
c |********************************************************
c |*********************************************************
c |**********************************************************
c |***********************************************************
c |************************************************************
c |*************************************************************
c |**************************************************************
c |***************************************************************
c |****************************************************************| 2 NC: 4122 JD: 10
0.20/0.26	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |*********
c |**********
c |************
c |*************
c |**************
c |***************
c |****************
c |*****************
c |******************
c |********************
c |*********************
c |**********************
c |***********************
c |************************
c |*************************
c |**************************
c |***************************
c |****************************
c |*****************************
c |******************************
c |*******************************
c |********************************
c |*********************************
c |**********************************
c |************************************
c |*************************************
c |**************************************
c |***************************************
c |****************************************
c |*****************************************
c |******************************************
c |*******************************************
c |********************************************
c |*********************************************
c |**********************************************
c |***********************************************
c |************************************************
c |*************************************************
c |**************************************************
c |***************************************************
c |****************************************************
c |*****************************************************
c |******************************************************
c |*******************************************************
c |********************************************************
c |*********************************************************
c |**********************************************************
c |***********************************************************
c |************************************************************
c |*************************************************************
c |**************************************************************
c |***************************************************************
c |****************************************************************| 3 NC: 10997 JD: 10
0.70/0.70	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |*****
c |******
c |*******
c |********
c |*********
c |**********
c |***********
c |************
c |*************
c |**************
c |***************
c |****************
c |*****************
c |******************
c |*******************
c |********************
c |*********************
c |**********************
c |***********************
c |************************
c |*************************
c |**************************
c |***************************
c |****************************
c |*****************************
c |******************************
c |*******************************
c |********************************
c |*********************************
c |**********************************
c |***********************************
c |************************************
c |*************************************
c |**************************************
c |***************************************
c |****************************************
c |*****************************************
c |******************************************
c |*******************************************
c |********************************************
c |*********************************************
c |**********************************************
c |***********************************************
c |************************************************
c |*************************************************
c |**************************************************
c |***************************************************
c |****************************************************
c |*****************************************************
c |******************************************************
c |*******************************************************
c |********************************************************
c |*********************************************************
c |**********************************************************
c |***********************************************************
c |************************************************************
c |*************************************************************
c |**************************************************************
c |***************************************************************
c |****************************************************************| 4 NC: 22495 JD: 10
1.40/1.43	c |----------------------------------------------------------------|
c |*
c |**
c |***
c |****
c |*****
c |******
c |*******
c |********
c |*********
c |**********
c |***********
c |************
c |*************
c |**************
c |***************
c |****************
c |*****************
c |******************
c |*******************
c |********************
c |*********************
c |**********************
c |***********************
c |************************
c |*************************
c |**************************
c |***************************
c |****************************
c |*****************************
c |******************************
c |*******************************
c |********************************
c |*********************************
c |**********************************
c |***********************************
c |************************************
c |*************************************
c |**************************************
c |***************************************
c |****************************************
c |*****************************************
c |******************************************
c |*******************************************
c |********************************************
c |*********************************************
c |**********************************************
c |***********************************************
c |************************************************
c |*************************************************
c |**************************************************
c |***************************************************
c |****************************************************
c |*****************************************************
c |******************************************************
c |*******************************************************
c |********************************************************
c |*********************************************************
c |**********************************************************
c |***********************************************************
c |************************************************************
c |*************************************************************
c |**************************************************************
c |***************************************************************
c |****************************************************************| 5 NC: 35464 JD: 10
2.20/2.24	c |----------------------------------------------------------------|
c |*
c |**
c |***
c |****
c |*****
c |******
c |*******
c |********
c |*********
c |**********
c |***********
c |************
c |*************
c |**************
c |***************
c |****************
c |*****************
c |******************
c |*******************
c |********************
c |*********************
c |**********************
c |***********************
c |************************
c |*************************
c |**************************
c |***************************
c |****************************
c |*****************************
c |******************************
c |*******************************
c |********************************
c |*********************************
c |**********************************
c |***********************************
c |************************************
c |*************************************
c |**************************************
c |***************************************
c |****************************************
c |*****************************************
c |******************************************
c |*******************************************
c |********************************************
c |*********************************************
c |**********************************************
c |***********************************************
c |************************************************
c |*************************************************
c |**************************************************
c |***************************************************
c |****************************************************
c |*****************************************************
c |******************************************************
c |*******************************************************
c |********************************************************
c |*********************************************************
c |**********************************************************
c |***********************************************************
c |************************************************************
c |*************************************************************
c |**************************************************************
c |****************************************************************| 6 NC: 44500 JD: 10
2.79/2.81	c |----------------------------------------------------------------|
c |*
c |**
c |***
c |****
c |*****
c |******
c |*******
c |********
c |*********
c |**********
c |***********
c |************
c |*************
c |**************
c |***************
c |****************
c |*****************
c |******************
c |*******************
c |********************
c |*********************
c |**********************
c |***********************
c |************************
c |*************************
c |**************************
c |***************************
c |****************************
c |*****************************
c |******************************
c |********************************
c |*********************************
c |**********************************
c |***********************************
c |************************************
c |*************************************
c |**************************************
c |***************************************
c |****************************************
c |*****************************************
c |******************************************
c |*******************************************
c |********************************************
c |*********************************************
c |**********************************************
c |************************************************
c |*************************************************
c |**************************************************
c |***************************************************
c |****************************************************
c |*****************************************************
c |******************************************************
c |********************************************************
c |*********************************************************
c |**********************************************************
c |************************************************************
c |****************************************************************| 7 NC: 48624 JD: 10
2.99/3.07	c |----------------------------------------------------------------|
c |*
c |**
c |***
c |****
c |*****
c |******
c |*******
c |********
c |*********
c |**********
c |***********
c |************
c |*************
c |**************
c |****************
c |*****************
c |******************
c |*******************
c |********************
c |*********************
c |**********************
c |************************
c |*************************
c |**************************
c |****************************
c |********************************
c |*********************************
c |**********************************
c |***********************************
c |************************************
c |*************************************
c |**************************************
c |****************************************
c |*****************************************
c |******************************************
c |********************************************
c |************************************************
c |*************************************************
c |**************************************************
c |****************************************************
c |********************************************************
c |****************************************************************| 8 NC: 50035 JD: 10
3.09/3.16	c |----------------------------------------------------------------|
c |*
c |**
c |***
c |****
c |*****
c |******
c |********
c |*********
c |**********
c |************
c |****************
c |*****************
c |******************
c |********************
c |************************
c |********************************
c |*********************************
c |**********************************
c |************************************
c |****************************************
c |************************************************
c |****************************************************************| 9 NC: 50320 JD: 10
3.09/3.18	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |********************************
c |****************************************************************| 10 NC: 50337 JD: 10
3.09/3.18	c |----------------------------------------------------------------|
c |
3.09/3.18	c
3.09/3.18	c main():: nodeCount: 50337
3.09/3.18	c main():: dead ends in main: 1399
3.09/3.18	c main():: lookAheadCount: 2170959
3.09/3.18	c main():: unitResolveCount: 197688
3.09/3.18	c main():: time=3.180000
3.09/3.18	c main():: necessary_assignments: 3613
3.09/3.18	c main():: bin_sat: 0, bin_unsat 0
3.09/3.18	c main():: doublelook: #: 72091, succes #: 49561
3.09/3.18	c main():: doublelook: overall 3.480 of all possible doublelooks executed
3.09/3.18	c main():: doublelook: succesrate: 68.748, average DL_trigger: 561.970
3.09/3.18	s UNSATISFIABLE

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1595664-1239280622/watcher-1595664-1239280622 -o /tmp/evaluation-result-1595664-1239280622/solver-1595664-1239280622 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/march_ks HOME/instance-1595664-1239280622.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 1843200 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 1894400 KiB
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.00 1.00 0.72 3/80 13997
/proc/meminfo: memFree=1323088/2055912 swapFree=4170596/4192956
[pid=13997] ppid=13995 vsize=660 CPUtime=0
/proc/13997/stat : 13997 (march_ks) R 13995 13997 13930 0 -1 4194304 119 0 0 0 0 0 0 0 18 0 1 0 1200726056 675840 102 1992294400 134512640 135019032 4294956240 18446744073709551615 134662703 0 0 4096 0 0 0 0 17 1 0 0
/proc/13997/statm: 165 102 73 123 0 40 0

[startup+0.0877941 s]
/proc/loadavg: 1.00 1.00 0.72 3/80 13997
/proc/meminfo: memFree=1323088/2055912 swapFree=4170596/4192956
[pid=13997] ppid=13995 vsize=660 CPUtime=0.08
/proc/13997/stat : 13997 (march_ks) R 13995 13997 13930 0 -1 4194304 126 0 0 0 8 0 0 0 18 0 1 0 1200726056 675840 109 1992294400 134512640 135019032 4294956240 18446744073709551615 134598365 0 0 4096 0 0 0 0 17 1 0 0
/proc/13997/statm: 165 109 73 123 0 40 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 660

[startup+0.101795 s]
/proc/loadavg: 1.00 1.00 0.72 3/80 13997
/proc/meminfo: memFree=1323088/2055912 swapFree=4170596/4192956
[pid=13997] ppid=13995 vsize=660 CPUtime=0.1
/proc/13997/stat : 13997 (march_ks) R 13995 13997 13930 0 -1 4194304 126 0 0 0 10 0 0 0 18 0 1 0 1200726056 675840 109 1992294400 134512640 135019032 4294956240 18446744073709551615 134598377 0 0 4096 0 0 0 0 17 1 0 0
/proc/13997/statm: 165 109 73 123 0 40 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 660

[startup+0.301815 s]
/proc/loadavg: 1.00 1.00 0.72 3/80 13997
/proc/meminfo: memFree=1323088/2055912 swapFree=4170596/4192956
[pid=13997] ppid=13995 vsize=660 CPUtime=0.3
/proc/13997/stat : 13997 (march_ks) R 13995 13997 13930 0 -1 4194304 129 0 0 0 30 0 0 0 19 0 1 0 1200726056 675840 112 1992294400 134512640 135019032 4294956240 18446744073709551615 134597215 0 0 4096 0 0 0 0 17 1 0 0
/proc/13997/statm: 165 112 73 123 0 40 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 660

[startup+0.701857 s]
/proc/loadavg: 1.00 1.00 0.72 3/80 13997
/proc/meminfo: memFree=1323088/2055912 swapFree=4170596/4192956
[pid=13997] ppid=13995 vsize=660 CPUtime=0.7
/proc/13997/stat : 13997 (march_ks) R 13995 13997 13930 0 -1 4194304 131 0 0 0 70 0 0 0 22 0 1 0 1200726056 675840 114 1992294400 134512640 135019032 4294956240 18446744073709551615 134597550 0 0 4096 0 0 0 0 17 1 0 0
/proc/13997/statm: 165 114 73 123 0 40 0
Current children cumulated CPU time (s) 0.7
Current children cumulated vsize (KiB) 660

[startup+1.50194 s]
/proc/loadavg: 1.00 1.00 0.72 2/81 13998
/proc/meminfo: memFree=1322824/2055912 swapFree=4170596/4192956
[pid=13997] ppid=13995 vsize=816 CPUtime=1.5
/proc/13997/stat : 13997 (march_ks) R 13995 13997 13930 0 -1 4194304 139 0 0 0 150 0 0 0 25 0 1 0 1200726056 835584 122 1992294400 134512640 135019032 4294956240 18446744073709551615 134596380 0 0 4096 0 0 0 0 17 1 0 0
/proc/13997/statm: 204 122 73 123 0 79 0
Current children cumulated CPU time (s) 1.5
Current children cumulated vsize (KiB) 816

[startup+3.10111 s]
/proc/loadavg: 1.00 1.00 0.72 2/81 13998
/proc/meminfo: memFree=1322696/2055912 swapFree=4170596/4192956
[pid=13997] ppid=13995 vsize=816 CPUtime=3.09
/proc/13997/stat : 13997 (march_ks) R 13995 13997 13930 0 -1 4194304 145 0 0 0 309 0 0 0 25 0 1 0 1200726056 835584 128 1992294400 134512640 135019032 4294956240 18446744073709551615 134596736 0 0 4096 0 0 0 0 17 1 0 0
/proc/13997/statm: 204 128 73 123 0 79 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 816

Solver just ended. Dumping a history of the last processes samples

Child status: 20
Real time (s): 3.18481
CPU time (s): 3.18351
CPU user time (s): 3.18252
CPU system time (s): 0.000999
CPU usage (%): 99.9594
Max. virtual memory (cumulated for all children) (KiB): 816

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 3.18252
system time used= 0.000999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 146
page faults= 0
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 3
involuntary context switches= 5

runsolver used 0.009998 second user time and 0.021996 second system time

The end

Launcher Data 

Begin job on node78 at 2009-04-09 14:37:02
IDJOB=1595664
IDBENCH=71108
IDSOLVER=559
FILE ID=node78/1595664-1239280622
PBS_JOBID= 9115385
Free space on /tmp= 126632 MiB

SOLVER NAME= SAT07 reference solver: March KS 2007-02-08
BENCH NAME= SAT09/CRAFTED/sgen/unsat/sgen1-unsat-61-100.cnf
COMMAND LINE= HOME/march_ks BENCHNAME            
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1595664-1239280622/watcher-1595664-1239280622 -o /tmp/evaluation-result-1595664-1239280622/solver-1595664-1239280622 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/march_ks HOME/instance-1595664-1239280622.cnf            

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 43b8e7efe061e21db6b4c047915ae87c
RANDOM SEED=989374391

node78.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.214
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5914.62
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.214
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055912 kB
MemFree:       1323568 kB
Buffers:         54492 kB
Cached:         597452 kB
SwapCached:       7656 kB
Active:          31600 kB
Inactive:       630556 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055912 kB
LowFree:       1323568 kB
SwapTotal:     4192956 kB
SwapFree:      4170596 kB
Dirty:            2868 kB
Writeback:           0 kB
Mapped:          15960 kB
Slab:            54400 kB
Committed_AS:  3286376 kB
PageTables:       2556 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 126628 MiB
End job on node78 at 2009-04-09 14:37:05