Trace number 1516213

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
march_hi hiSAT 15.6266 15.6313

General information on the benchmark

NameRANDOM/MEDIUM/7SAT/SATISFIABLE/60/
unif-k7-r89-v60-c5340-S1639151107-094.cnf
MD5SUMbb2737f1555379d7532a4714c236afae
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.148976
Satisfiable
(Un)Satisfiability was proved
Number of variables60
Number of clauses5340
Sum of the clauses size37380
Maximum clause length7
Minimum clause length7
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 30
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 55340

Solver Data 

0.89/0.93	c main():: ***                                   [ march satisfiability solver ]                                   ***
0.89/0.93	c main()::  **                Copyright (C) 2001-2009 M.J.H. Heule, J.E. van Zwieten, and M. Dufour                 **
0.89/0.93	c main()::   *  This program may be redistributed and/or modified under the terms of the GNU Gereral Public License  *
0.89/0.93	c main()::
0.89/0.93	c initFormula():: searching for DIMACS p-line....
0.89/0.93	c full lookahead due to high density!
0.89/0.93	c initFormula():: the DIMACS p-line indicates a CNF of 60 variables and 5340 clauses.
0.89/0.93	c parseCNF():: parsing....
0.89/0.93	c parseCNF():: the CNF contains 0 unary clauses.
0.89/0.93	c runParser():: parsing was successful, warming up engines...
0.89/0.93	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.89/0.93	c preprocessing fase I completed:: there are now 60 free variables and 5340 clauses.
0.89/0.93	c stat :: sign balance is biased by 0.006
0.89/0.93	c using k-SAT heuristics (size based diff)
0.89/0.93	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.89/0.93	c simplify_formula():: removed 0 tautological, 0 satisfied and 2 duplicate clauses
0.89/0.93	c resolvent_look() :: found 2 resolvents
0.89/0.93	c main():: clause / variable ratio: ( 5342 / 60 ) = 89.03
0.89/0.93	c longest clause has size 7
0.89/0.93	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.89/0.93	c number of free variables = 60
0.89/0.93	c dynamic_preselect_setsize :: off
0.89/0.93	c main():: all systems go!
0.89/0.93	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |********************************
c |****************************************************************| ( 0/16) NodeCount: 125
1.00/1.01	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |********************************
c |*********************************
c |**********************************
c |************************************
c |****************************************
c |************************************************
c |*************************************************
c |**************************************************
c |****************************************************
c |********************************************************
c |*********************************************************
c |**********************************************************
c |************************************************************
c |*************************************************************
c |**************************************************************
c |***************************************************************
c |****************************************************************| ( 1/16) NodeCount: 1505
1.69/1.72	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 |****************************************************************| ( 2/16) NodeCount: 10591
6.39/6.42	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 |*******************************************************
15.59/15.63	c |0010001000001000.01001000$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$|
15.59/15.63	
c |*******************************************************
15.59/15.63	c
15.59/15.63	c main():: nodeCount: 28381
15.59/15.63	c main():: dead ends in main: 5
15.59/15.63	c main():: lookAheadCount: 1320775
15.59/15.63	c main():: unitResolveCount: 52305
15.59/15.63	c main():: time=15.620000
15.59/15.63	c main():: necessary_assignments: 103
15.59/15.63	c main():: bin_sat: 0, bin_unsat 0
15.59/15.63	c main():: doublelook: #: 90819, succes #: 72785
15.59/15.63	c main():: doublelook: overall 7.019 of all possible doublelooks executed
15.59/15.63	c main():: doublelook: succesrate: 80.143, average DL_trigger: 16.510
15.59/15.63	c main():: SOLUTION VERIFIED :-)
15.59/15.63	s SATISFIABLE
15.59/15.63	v -1 2 -3 -4 5 6 -7 8 9 -10 11 12 -13 -14 15 16 17 18 19 20 -21 -22 -23 24 -25 26 -27 28 29 30 31 -32 33 -34 -35 -36 37 38 -39 40 -41 -42 43 -44 45 -46 47 -48 -49 -50 51 52 53 54 -55 -56 -57 58 -59 60 0

Verifier Data 

OK

Watcher Data 

runsolver version 3.2.9 (svn:489) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1516213-1238266334/watcher-1516213-1238266334 -o /tmp/evaluation-result-1516213-1238266334/solver-1516213-1238266334 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/march_hi HOME/instance-1516213-1238266334.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: 0.91 0.95 0.98 3/64 25360
/proc/meminfo: memFree=1058712/2055924 swapFree=4176792/4192956
[pid=25360] ppid=25358 vsize=836 CPUtime=0
/proc/25360/stat : 25360 (march_hi) R 25358 25360 24781 0 -1 4194304 103 0 0 0 0 0 0 0 18 0 1 0 1099300140 856064 88 1992294400 134512640 135197378 4294956240 18446744073709551615 134697414 0 0 4096 0 0 0 0 17 1 0 0
/proc/25360/statm: 209 88 58 167 0 40 0

[startup+0.0504359 s]
/proc/loadavg: 0.91 0.95 0.98 3/64 25360
/proc/meminfo: memFree=1058712/2055924 swapFree=4176792/4192956
[pid=25360] ppid=25358 vsize=1796 CPUtime=0.04
/proc/25360/stat : 25360 (march_hi) R 25358 25360 24781 0 -1 4194304 734 0 0 0 4 0 0 0 18 0 1 0 1099300140 1839104 325 1992294400 134512640 135197378 4294956240 18446744073709551615 134578096 0 0 4096 0 0 0 0 17 1 0 0
/proc/25360/statm: 449 325 82 167 0 280 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 1796

[startup+0.101441 s]
/proc/loadavg: 0.91 0.95 0.98 3/64 25360
/proc/meminfo: memFree=1058712/2055924 swapFree=4176792/4192956
[pid=25360] ppid=25358 vsize=1796 CPUtime=0.09
/proc/25360/stat : 25360 (march_hi) R 25358 25360 24781 0 -1 4194304 734 0 0 0 9 0 0 0 18 0 1 0 1099300140 1839104 325 1992294400 134512640 135197378 4294956240 18446744073709551615 134578126 0 0 4096 0 0 0 0 17 1 0 0
/proc/25360/statm: 449 325 82 167 0 280 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1796

[startup+0.301464 s]
/proc/loadavg: 0.91 0.95 0.98 3/64 25360
/proc/meminfo: memFree=1058712/2055924 swapFree=4176792/4192956
[pid=25360] ppid=25358 vsize=1796 CPUtime=0.29
/proc/25360/stat : 25360 (march_hi) R 25358 25360 24781 0 -1 4194304 734 0 0 0 29 0 0 0 19 0 1 0 1099300140 1839104 325 1992294400 134512640 135197378 4294956240 18446744073709551615 134578096 0 0 4096 0 0 0 0 17 1 0 0
/proc/25360/statm: 449 325 82 167 0 280 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1796

[startup+0.70151 s]
/proc/loadavg: 0.91 0.95 0.98 3/64 25360
/proc/meminfo: memFree=1058712/2055924 swapFree=4176792/4192956
[pid=25360] ppid=25358 vsize=1796 CPUtime=0.69
/proc/25360/stat : 25360 (march_hi) R 25358 25360 24781 0 -1 4194304 734 0 0 0 69 0 0 0 22 0 1 0 1099300140 1839104 325 1992294400 134512640 135197378 4294956240 18446744073709551615 134578114 0 0 4096 0 0 0 0 17 1 0 0
/proc/25360/statm: 449 325 82 167 0 280 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1796

[startup+1.5016 s]
/proc/loadavg: 0.91 0.95 0.98 2/65 25361
/proc/meminfo: memFree=1057424/2055924 swapFree=4176792/4192956
[pid=25360] ppid=25358 vsize=2324 CPUtime=1.49
/proc/25360/stat : 25360 (march_hi) R 25358 25360 24781 0 -1 4194304 912 0 0 0 149 0 0 0 25 0 1 0 1099300140 2379776 424 1992294400 134512640 135197378 4294956240 18446744073709551615 134524890 0 0 4096 0 0 0 0 17 1 0 0
/proc/25360/statm: 581 424 93 167 0 412 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 2324

[startup+3.10179 s]
/proc/loadavg: 0.91 0.95 0.98 2/65 25361
/proc/meminfo: memFree=1057296/2055924 swapFree=4176792/4192956
[pid=25360] ppid=25358 vsize=2324 CPUtime=3.09
/proc/25360/stat : 25360 (march_hi) R 25358 25360 24781 0 -1 4194304 912 0 0 0 309 0 0 0 25 0 1 0 1099300140 2379776 424 1992294400 134512640 135197378 4294956240 18446744073709551615 134539469 0 0 4096 0 0 0 0 17 1 0 0
/proc/25360/statm: 581 424 93 167 0 412 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 2324

[startup+6.30116 s]
/proc/loadavg: 0.92 0.95 0.98 2/65 25361
/proc/meminfo: memFree=1057232/2055924 swapFree=4176792/4192956
[pid=25360] ppid=25358 vsize=2324 CPUtime=6.29
/proc/25360/stat : 25360 (march_hi) R 25358 25360 24781 0 -1 4194304 912 0 0 0 629 0 0 0 25 0 1 0 1099300140 2379776 424 1992294400 134512640 135197378 4294956240 18446744073709551615 134603232 0 0 4096 0 0 0 0 17 1 0 0
/proc/25360/statm: 581 424 93 167 0 412 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 2324

[startup+12.7019 s]
/proc/loadavg: 0.93 0.95 0.98 2/65 25361
/proc/meminfo: memFree=1057168/2055924 swapFree=4176792/4192956
[pid=25360] ppid=25358 vsize=2324 CPUtime=12.69
/proc/25360/stat : 25360 (march_hi) R 25358 25360 24781 0 -1 4194304 912 0 0 0 1269 0 0 0 25 0 1 0 1099300140 2379776 424 1992294400 134512640 135197378 4294956240 18446744073709551615 134524906 0 0 4096 0 0 0 0 17 1 0 0
/proc/25360/statm: 581 424 93 167 0 412 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 2324

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

[startup+14.3051 s]
/proc/loadavg: 0.93 0.96 0.98 2/65 25361
/proc/meminfo: memFree=1057168/2055924 swapFree=4176792/4192956
[pid=25360] ppid=25358 vsize=2324 CPUtime=14.29
/proc/25360/stat : 25360 (march_hi) R 25358 25360 24781 0 -1 4194304 912 0 0 0 1429 0 0 0 25 0 1 0 1099300140 2379776 424 1992294400 134512640 135197378 4294956240 18446744073709551615 134603252 0 0 4096 0 0 0 0 17 1 0 0
/proc/25360/statm: 581 424 93 167 0 412 0
Current children cumulated CPU time (s) 14.29
Current children cumulated vsize (KiB) 2324

[startup+15.1012 s]
/proc/loadavg: 0.93 0.96 0.98 2/65 25361
/proc/meminfo: memFree=1057168/2055924 swapFree=4176792/4192956
[pid=25360] ppid=25358 vsize=2324 CPUtime=15.09
/proc/25360/stat : 25360 (march_hi) R 25358 25360 24781 0 -1 4194304 912 0 0 0 1509 0 0 0 25 0 1 0 1099300140 2379776 424 1992294400 134512640 135197378 4294956240 18446744073709551615 134524878 0 0 4096 0 0 0 0 17 1 0 0
/proc/25360/statm: 581 424 93 167 0 412 0
Current children cumulated CPU time (s) 15.09
Current children cumulated vsize (KiB) 2324

[startup+15.5012 s]
/proc/loadavg: 0.93 0.96 0.98 2/65 25361
/proc/meminfo: memFree=1057168/2055924 swapFree=4176792/4192956
[pid=25360] ppid=25358 vsize=2324 CPUtime=15.49
/proc/25360/stat : 25360 (march_hi) R 25358 25360 24781 0 -1 4194304 912 0 0 0 1549 0 0 0 25 0 1 0 1099300140 2379776 424 1992294400 134512640 135197378 4294956240 18446744073709551615 134524945 0 0 4096 0 0 0 0 17 1 0 0
/proc/25360/statm: 581 424 93 167 0 412 0
Current children cumulated CPU time (s) 15.49
Current children cumulated vsize (KiB) 2324

[startup+15.6012 s]
/proc/loadavg: 0.93 0.96 0.98 2/65 25361
/proc/meminfo: memFree=1057168/2055924 swapFree=4176792/4192956
[pid=25360] ppid=25358 vsize=2324 CPUtime=15.59
/proc/25360/stat : 25360 (march_hi) R 25358 25360 24781 0 -1 4194304 912 0 0 0 1559 0 0 0 25 0 1 0 1099300140 2379776 424 1992294400 134512640 135197378 4294956240 18446744073709551615 134525003 0 0 4096 0 0 0 0 17 1 0 0
/proc/25360/statm: 581 424 93 167 0 412 0
Current children cumulated CPU time (s) 15.59
Current children cumulated vsize (KiB) 2324

Child status: 10
Real time (s): 15.6313
CPU time (s): 15.6266
CPU user time (s): 15.6236
CPU system time (s): 0.002999
CPU usage (%): 99.9698
Max. virtual memory (cumulated for all children) (KiB): 2324

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 15.6236
system time used= 0.002999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 914
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= 2
involuntary context switches= 28

runsolver used 0.012998 second user time and 0.044993 second system time

The end

Launcher Data 

Begin job on node6 at 2009-03-28 19:52:14
IDJOB=1516213
IDBENCH=70494
IDSOLVER=521
FILE ID=node6/1516213-1238266334
PBS_JOBID= 9060808
Free space on /tmp= 66324 MiB

SOLVER NAME= march_hi hi
BENCH NAME= SAT09/RANDOM/MEDIUM/7SAT/SATISFIABLE/60/unif-k7-r89-v60-c5340-S1639151107-094.cnf
COMMAND LINE= HOME/march_hi BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1516213-1238266334/watcher-1516213-1238266334 -o /tmp/evaluation-result-1516213-1238266334/solver-1516213-1238266334 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/march_hi HOME/instance-1516213-1238266334.cnf

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

MD5SUM BENCH= bb2737f1555379d7532a4714c236afae
RANDOM SEED=1890174228

node6.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		: 3000.236
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		: 3000.236
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:      2055924 kB
MemFree:       1059192 kB
Buffers:         95316 kB
Cached:         805816 kB
SwapCached:       9932 kB
Active:          59656 kB
Inactive:       855012 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055924 kB
LowFree:       1059192 kB
SwapTotal:     4192956 kB
SwapFree:      4176792 kB
Dirty:             904 kB
Writeback:           0 kB
Mapped:          19224 kB
Slab:            68016 kB
Committed_AS:  2795568 kB
PageTables:       1464 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66320 MiB
End job on node6 at 2009-03-28 19:52:30