Trace number 1732463

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_nn nnSAT 1.67074 1.67201

General information on the benchmark

NameCRAFTED/sgen/sat/
sgen1-sat-160-100.cnf
MD5SUMf74d6f760fed9ca1e1d4158014482021
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.185971
Satisfiable
(Un)Satisfiability was proved
Number of variables160
Number of clauses384
Sum of the clauses size960
Maximum clause length5
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 2320
Number of clauses of size 30
Number of clauses of size 40
Number of clauses of size 564
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) 2001-2009 M.J.H. Heule, J.E. van Zwieten, and M. Dufour                 **
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 160 variables and 384 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 160 free variables and 384 clauses.
0.00/0.00	c stat :: sign balance is biased by 0.497
0.00/0.00	c using k-SAT heuristics (size based diff)
0.00/0.00	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.00/0.00	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.00/0.00	c main():: clause / variable ratio: ( 384 / 160 ) = 2.40
0.00/0.00	c longest clause has size 5
0.00/0.00	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.00/0.00	c number of free variables = 160
0.00/0.00	c dynamic_preselect_setsize :: off
0.00/0.00	c main():: all systems go!
0.00/0.00	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |********************************
c |****************************************************************| ( 0/999) NodeCount: 23
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 |****************************************************************| ( 1/999) NodeCount: 252
0.00/0.02	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |*****************
c |******************
c |********************
c |************************
c |*************************
c |**************************
c |****************************
c |*****************************
c |******************************
c |*******************************
c |********************************
c |*********************************
c |**********************************
c |************************************
c |****************************************
c |*****************************************
c |******************************************
c |********************************************
c |*********************************************
c |**********************************************
c |***********************************************
c |************************************************
c |*************************************************
c |**************************************************
c |****************************************************
c |*****************************************************
c |******************************************************
c |*******************************************************
c |********************************************************
c |*********************************************************
c |**********************************************************
c |***********************************************************
c |************************************************************
c |*************************************************************
c |**************************************************************
c |***************************************************************
c |****************************************************************| ( 2/999) NodeCount: 1631
0.09/0.11	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |*********
c |**********
c |************
c |*************
c |**************
c |***************
c |****************
c |*****************
c |******************
c |********************
c |*********************
c |**********************
c |***********************
c |************************
c |*************************
c |**************************
c |***************************
c |****************************
c |*****************************
c |******************************
c |*******************************
c |********************************
c |*********************************
c |**********************************
c |************************************
c |*************************************
c |**************************************
c |***************************************
c |****************************************
c |*****************************************
c |******************************************
c |*******************************************
c |********************************************
c |*********************************************
c |**********************************************
c |***********************************************
c |************************************************
c |*************************************************
c |**************************************************
c |***************************************************
c |****************************************************
c |*****************************************************
c |******************************************************
c |*******************************************************
c |********************************************************
c |*********************************************************
c |**********************************************************
c |***********************************************************
c |************************************************************
c |*************************************************************
c |**************************************************************
c |***************************************************************
c |****************************************************************| ( 3/999) NodeCount: 7449
0.39/0.47	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |*****
c |******
c |*******
c |********
c |*********
c |**********
c |***********
c |************
c |*************
c |**************
c |***************
c |****************
c |*****************
c |******************
c |*******************
c |********************
c |*********************
c |**********************
c |***********************
c |************************
c |*************************
c |**************************
c |***************************
c |****************************
c |*****************************
c |******************************
c |*******************************
c |********************************
c |*********************************
c |**********************************
c |***********************************
c |************************************
c |*************************************
c |**************************************
c |***************************************
c |****************************************
c |*****************************************
c |******************************************
c |*******************************************
c |********************************************
c |*********************************************
c |**********************************************
c |***********************************************
c |************************************************
c |*************************************************
c |**************************************************
c |***************************************************
c |****************************************************
c |*****************************************************
c |******************************************************
c |*******************************************************
c |********************************************************
c |*********************************************************
c |**********************************************************
c |***********************************************************
c |************************************************************
c |*************************************************************
c |**************************************************************
c |***************************************************************
c |****************************************************************| ( 4/999) NodeCount: 25318
1.49/1.59	c |----------------------------------------------------------------|
c |*
c |**
c |***
c |****
c |*****
c |******
c |*******
c |********
c |*********
c |**********
c |***********
c |************
1.59/1.67	c |11001100000100000000$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$|
1.59/1.67	
c |************
1.59/1.67	c
1.59/1.67	c main():: nodeCount: 26547
1.59/1.67	c main():: dead ends in main: 1031
1.59/1.67	c main():: lookAheadCount: 813286
1.59/1.67	c main():: unitResolveCount: 245325
1.59/1.67	c main():: time=1.660000
1.59/1.67	c main():: necessary_assignments: 3721
1.59/1.67	c main():: bin_sat: 0, bin_unsat 0
1.59/1.67	c main():: doublelook: #: 39558, succes #: 16712
1.59/1.67	c main():: doublelook: overall 4.975 of all possible doublelooks executed
1.59/1.67	c main():: doublelook: succesrate: 42.247, average DL_trigger: 5.227
1.59/1.67	c main():: SOLUTION VERIFIED :-)
1.59/1.67	s SATISFIABLE
1.59/1.67	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 61 -62 -63 -64 -65 -66 -67 68 -69 -70 71 -72 -73 -74 -75 -76 -77 78 -79 -80 -81 -82 -83 84 -85 -86 87 -88 -89 -90 -91 -92 -93 94 -95 -96 -97 -98 99 -100 -101 -102 -103 104 -105 -106 107 -108 -109 -110 -111 -112 113 -114 -115 116 -117 -118 -119 -120 -121 -122 -123 124 -125 -126 -127 128 -129 -130 -131 -132 133 -134 -135 136 -137 -138 -139 -140 -141 -142 -143 144 -145 -146 -147 -148 149 -150 -151 152 -153 -154 -155 -156 -157 -158 159 -160 0

Verifier Data 

OK

Watcher Data 

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1732463-1240780944/watcher-1732463-1240780944 -o /tmp/evaluation-result-1732463-1240780944/solver-1732463-1240780944 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/march_nn HOME/instance-1732463-1240780944.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 0.99 1.00 2/64 28502
/proc/meminfo: memFree=1717560/2055920 swapFree=4191900/4192956
[pid=28502] ppid=28500 vsize=1036 CPUtime=0
/proc/28502/stat : 28502 (march_nn) R 28500 28502 27940 0 -1 4194304 152 0 0 0 0 0 0 0 18 0 1 0 106128030 1060864 135 1992294400 134512640 135197250 4294956224 18446744073709551615 134539100 0 0 4096 0 0 0 0 17 1 0 0
/proc/28502/statm: 259 135 89 167 0 90 0

[startup+0.0370149 s]
/proc/loadavg: 1.00 0.99 1.00 2/64 28502
/proc/meminfo: memFree=1717560/2055920 swapFree=4191900/4192956
[pid=28502] ppid=28500 vsize=1036 CPUtime=0.03
/proc/28502/stat : 28502 (march_nn) R 28500 28502 27940 0 -1 4194304 164 0 0 0 3 0 0 0 18 0 1 0 106128030 1060864 147 1992294400 134512640 135197250 4294956224 18446744073709551615 134603250 0 0 4096 0 0 0 0 17 1 0 0
/proc/28502/statm: 259 147 92 167 0 90 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 1036

[startup+0.101022 s]
/proc/loadavg: 1.00 0.99 1.00 2/64 28502
/proc/meminfo: memFree=1717560/2055920 swapFree=4191900/4192956
[pid=28502] ppid=28500 vsize=1168 CPUtime=0.09
/proc/28502/stat : 28502 (march_nn) R 28500 28502 27940 0 -1 4194304 178 0 0 0 9 0 0 0 18 0 1 0 106128030 1196032 161 1992294400 134512640 135197250 4294956224 18446744073709551615 134603821 0 0 4096 0 0 0 0 17 1 0 0
/proc/28502/statm: 292 161 92 167 0 123 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1168

[startup+0.301045 s]
/proc/loadavg: 1.00 0.99 1.00 2/64 28502
/proc/meminfo: memFree=1717560/2055920 swapFree=4191900/4192956
[pid=28502] ppid=28500 vsize=1304 CPUtime=0.29
/proc/28502/stat : 28502 (march_nn) R 28500 28502 27940 0 -1 4194304 224 0 0 0 29 0 0 0 19 0 1 0 106128030 1335296 207 1992294400 134512640 135197250 4294956224 18446744073709551615 134593042 0 0 4096 0 0 0 0 17 1 0 0
/proc/28502/statm: 326 207 92 167 0 157 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1304

[startup+0.701093 s]
/proc/loadavg: 1.00 0.99 1.00 2/64 28502
/proc/meminfo: memFree=1717560/2055920 swapFree=4191900/4192956
[pid=28502] ppid=28500 vsize=1472 CPUtime=0.69
/proc/28502/stat : 28502 (march_nn) R 28500 28502 27940 0 -1 4194304 262 0 0 0 69 0 0 0 23 0 1 0 106128030 1507328 245 1992294400 134512640 135197250 4294956224 18446744073709551615 134718558 0 0 4096 0 0 0 0 17 1 0 0
/proc/28502/statm: 368 245 92 167 0 199 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1472

[startup+1.50119 s]
/proc/loadavg: 1.00 0.99 1.00 2/65 28503
/proc/meminfo: memFree=1716784/2055920 swapFree=4191900/4192956
[pid=28502] ppid=28500 vsize=2056 CPUtime=1.49
/proc/28502/stat : 28502 (march_nn) R 28500 28502 27940 0 -1 4194304 368 0 0 0 149 0 0 0 25 0 1 0 106128030 2105344 351 1992294400 134512640 135197250 4294956224 18446744073709551615 134539304 0 0 4096 0 0 0 0 17 1 0 0
/proc/28502/statm: 514 351 92 167 0 345 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 2056

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

[startup+1.6022 s]
/proc/loadavg: 1.00 0.99 1.00 2/65 28503
/proc/meminfo: memFree=1716784/2055920 swapFree=4191900/4192956
[pid=28502] ppid=28500 vsize=2056 CPUtime=1.59
/proc/28502/stat : 28502 (march_nn) R 28500 28502 27940 0 -1 4194304 379 0 0 0 159 0 0 0 25 0 1 0 106128030 2105344 362 1992294400 134512640 135197250 4294956224 18446744073709551615 134539972 0 0 4096 0 0 0 0 17 1 0 0
/proc/28502/statm: 514 362 92 167 0 345 0
Current children cumulated CPU time (s) 1.59
Current children cumulated vsize (KiB) 2056

Child status: 10
Real time (s): 1.67201
CPU time (s): 1.67074
CPU user time (s): 1.66675
CPU system time (s): 0.003999
CPU usage (%): 99.9246
Max. virtual memory (cumulated for all children) (KiB): 2056

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.66675
system time used= 0.003999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 389
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= 1

runsolver used 0.004999 second user time and 0.011998 second system time

The end

Launcher Data 

Begin job on node11 at 2009-04-26 23:22:24
IDJOB=1732463
IDBENCH=71118
IDSOLVER=522
FILE ID=node11/1732463-1240780944
PBS_JOBID= 9187205
Free space on /tmp= 66104 MiB

SOLVER NAME= march_nn nn
BENCH NAME= SAT09/CRAFTED/sgen/sat/sgen1-sat-160-100.cnf
COMMAND LINE= HOME/march_nn BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1732463-1240780944/watcher-1732463-1240780944 -o /tmp/evaluation-result-1732463-1240780944/solver-1732463-1240780944 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/march_nn HOME/instance-1732463-1240780944.cnf

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

MD5SUM BENCH= f74d6f760fed9ca1e1d4158014482021
RANDOM SEED=1698705660

node11.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:      2055920 kB
MemFree:       1718040 kB
Buffers:         45228 kB
Cached:         215972 kB
SwapCached:        260 kB
Active:          92852 kB
Inactive:       181636 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1718040 kB
SwapTotal:     4192956 kB
SwapFree:      4191900 kB
Dirty:             964 kB
Writeback:           0 kB
Mapped:          21828 kB
Slab:            49360 kB
Committed_AS:   408764 kB
PageTables:       1448 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= 66104 MiB
End job on node11 at 2009-04-26 23:22:26