Trace number 1517869

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 hiUNSAT 46.8969 46.9152

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/UNKNOWN/380/
unif-k3-r4.25-v380-c1615-S260616787-042.cnf
MD5SUM9a70ac660abd105bceac08fd27643051
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark46.8969
Satisfiable
(Un)Satisfiability was proved
Number of variables380
Number of clauses1615
Sum of the clauses size4845
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31615
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.00/0.01	c main():: ***                                   [ march satisfiability solver ]                                   ***
0.00/0.01	c main()::  **                Copyright (C) 2001-2009 M.J.H. Heule, J.E. van Zwieten, and M. Dufour                 **
0.00/0.01	c main()::   *  This program may be redistributed and/or modified under the terms of the GNU Gereral Public License  *
0.00/0.01	c main()::
0.00/0.01	c initFormula():: searching for DIMACS p-line....
0.00/0.01	c initFormula():: the DIMACS p-line indicates a CNF of 380 variables and 1615 clauses.
0.00/0.01	c parseCNF():: parsing....
0.00/0.01	c parseCNF():: the CNF contains 0 unary clauses.
0.00/0.01	c runParser():: parsing was successful, warming up engines...
0.00/0.01	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.00/0.01	c preprocessing fase I completed:: there are now 380 free variables and 1615 clauses.
0.00/0.01	c stat :: sign balance is biased by 0.399
0.00/0.01	c using 3-SAT heuristics (occurence based diff)
0.00/0.01	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.00/0.01	c simplify_formula():: removed 0 tautological, 0 satisfied and 153 duplicate clauses
0.00/0.01	c resolvent_look() :: found 86 resolvents
0.00/0.01	c lessRedundantTransformation():: nothing to be done.
0.00/0.01	c transformTo3SAT():: you gave me 380 variables and 1701 clauses.
0.00/0.01	c transformTo3SAT():: by the way, the maximal clause length before transformation was 3.
0.00/0.01	c transformTo3SAT():: I will add 0 variables and 0 clauses!
0.00/0.01	c transformTo3SAT():: the transformation yielded 380 variabels and 1701 clauses.
0.00/0.01	c main():: clause / variable ratio: ( 1701 / 380 ) = 4.48
0.00/0.01	c longest clause has size 3
0.00/0.01	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.00/0.01	c number of free variables = 380
0.00/0.01	c dynamic_preselect_setsize :: off
0.00/0.01	c main():: all systems go!
0.00/0.01	c |----------------------------------------------------------------|
c |*
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c |****************************************************************| ( 0/13) NodeCount: 119
0.00/0.06	c |----------------------------------------------------------------|
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c |****************************************************************| ( 2/13) NodeCount: 8511
3.59/3.68	c |----------------------------------------------------------------|
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c |****************************************************************| ( 4/13) NodeCount: 46951
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c |****************************************************************| ( 6/13) NodeCount: 87741
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c |****************************************************************| ( 9/13) NodeCount: 101657
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c |****************************************************************| (10/13) NodeCount: 101711
46.87/46.91	c |----------------------------------------------------------------|
c |
46.87/46.91	c
46.87/46.91	c main():: nodeCount: 101711
46.87/46.91	c main():: dead ends in main: 2162
46.87/46.91	c main():: lookAheadCount: 6737737
46.87/46.91	c main():: unitResolveCount: 1070815
46.87/46.91	c main():: time=46.890000
46.87/46.91	c main():: necessary_assignments: 20715
46.87/46.91	c main():: bin_sat: 0, bin_unsat 0
46.87/46.91	c main():: doublelook: #: 398385, succes #: 287045
46.87/46.91	c main():: doublelook: overall 6.122 of all possible doublelooks executed
46.87/46.91	c main():: doublelook: succesrate: 72.052, average DL_trigger: 47.527
46.87/46.91	s UNSATISFIABLE

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1517869-1238292282/watcher-1517869-1238292282 -o /tmp/evaluation-result-1517869-1238292282/solver-1517869-1238292282 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/march_hi HOME/instance-1517869-1238292282.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 1.00 3/64 2693
/proc/meminfo: memFree=1089176/2055920 swapFree=4177768/4192956
[pid=2693] ppid=2691 vsize=972 CPUtime=0
/proc/2693/stat : 2693 (march_hi) R 2691 2693 1898 0 -1 4194304 137 0 0 0 0 0 0 0 18 0 1 0 1101895046 995328 120 1992294400 134512640 135197378 4294956240 18446744073709551615 134687871 0 0 4096 0 0 0 0 17 1 0 0
/proc/2693/statm: 243 120 66 167 0 74 0

[startup+0.095487 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 2693
/proc/meminfo: memFree=1089176/2055920 swapFree=4177768/4192956
[pid=2693] ppid=2691 vsize=1536 CPUtime=0.09
/proc/2693/stat : 2693 (march_hi) R 2691 2693 1898 0 -1 4194304 255 0 0 0 9 0 0 0 18 0 1 0 1101895046 1572864 238 1992294400 134512640 135197378 4294956240 18446744073709551615 134539352 0 0 4096 0 0 0 0 17 1 0 0
/proc/2693/statm: 384 238 91 167 0 215 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1536

[startup+0.101486 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 2693
/proc/meminfo: memFree=1089176/2055920 swapFree=4177768/4192956
[pid=2693] ppid=2691 vsize=1536 CPUtime=0.09
/proc/2693/stat : 2693 (march_hi) R 2691 2693 1898 0 -1 4194304 255 0 0 0 9 0 0 0 18 0 1 0 1101895046 1572864 238 1992294400 134512640 135197378 4294956240 18446744073709551615 134539276 0 0 4096 0 0 0 0 17 1 0 0
/proc/2693/statm: 384 238 91 167 0 215 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1536

[startup+0.301507 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 2693
/proc/meminfo: memFree=1089176/2055920 swapFree=4177768/4192956
[pid=2693] ppid=2691 vsize=1668 CPUtime=0.29
/proc/2693/stat : 2693 (march_hi) R 2691 2693 1898 0 -1 4194304 263 0 0 0 29 0 0 0 19 0 1 0 1101895046 1708032 246 1992294400 134512640 135197378 4294956240 18446744073709551615 134539152 0 0 4096 0 0 0 0 17 1 0 0
/proc/2693/statm: 417 246 91 167 0 248 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1668

[startup+0.701548 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 2693
/proc/meminfo: memFree=1089176/2055920 swapFree=4177768/4192956
[pid=2693] ppid=2691 vsize=1668 CPUtime=0.69
/proc/2693/stat : 2693 (march_hi) R 2691 2693 1898 0 -1 4194304 269 0 0 0 69 0 0 0 22 0 1 0 1101895046 1708032 252 1992294400 134512640 135197378 4294956240 18446744073709551615 134542000 0 0 4096 0 0 0 0 17 1 0 0
/proc/2693/statm: 417 252 91 167 0 248 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1668

[startup+1.50263 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 2694
/proc/meminfo: memFree=1088464/2055920 swapFree=4177768/4192956
[pid=2693] ppid=2691 vsize=1668 CPUtime=1.49
/proc/2693/stat : 2693 (march_hi) R 2691 2693 1898 0 -1 4194304 276 0 0 0 149 0 0 0 25 0 1 0 1101895046 1708032 259 1992294400 134512640 135197378 4294956240 18446744073709551615 134542099 0 0 4096 0 0 0 0 17 1 0 0
/proc/2693/statm: 417 259 91 167 0 248 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 1668

[startup+3.10179 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 2694
/proc/meminfo: memFree=1088272/2055920 swapFree=4177768/4192956
[pid=2693] ppid=2691 vsize=1668 CPUtime=3.09
/proc/2693/stat : 2693 (march_hi) R 2691 2693 1898 0 -1 4194304 288 0 0 0 309 0 0 0 25 0 1 0 1101895046 1708032 271 1992294400 134512640 135197378 4294956240 18446744073709551615 134570914 0 0 4096 0 0 0 0 17 1 0 0
/proc/2693/statm: 417 271 91 167 0 248 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 1668

[startup+6.30113 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 2694
/proc/meminfo: memFree=1088208/2055920 swapFree=4177768/4192956
[pid=2693] ppid=2691 vsize=1668 CPUtime=6.29
/proc/2693/stat : 2693 (march_hi) R 2691 2693 1898 0 -1 4194304 296 0 0 0 629 0 0 0 25 0 1 0 1101895046 1708032 279 1992294400 134512640 135197378 4294956240 18446744073709551615 134552532 0 0 4096 0 0 0 0 17 1 0 0
/proc/2693/statm: 417 279 91 167 0 248 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 1668

[startup+12.7018 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 2694
/proc/meminfo: memFree=1088080/2055920 swapFree=4177768/4192956
[pid=2693] ppid=2691 vsize=1808 CPUtime=12.69
/proc/2693/stat : 2693 (march_hi) R 2691 2693 1898 0 -1 4194304 313 0 0 0 1269 0 0 0 25 0 1 0 1101895046 1851392 296 1992294400 134512640 135197378 4294956240 18446744073709551615 134541916 0 0 4096 0 0 0 0 17 1 0 0
/proc/2693/statm: 452 296 91 167 0 283 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 1808

[startup+25.5011 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 2694
/proc/meminfo: memFree=1087888/2055920 swapFree=4177768/4192956
[pid=2693] ppid=2691 vsize=1944 CPUtime=25.49
/proc/2693/stat : 2693 (march_hi) R 2691 2693 1898 0 -1 4194304 351 0 0 0 2549 0 0 0 25 0 1 0 1101895046 1990656 334 1992294400 134512640 135197378 4294956240 18446744073709551615 134542288 0 0 4096 0 0 0 0 17 1 0 0
/proc/2693/statm: 486 334 91 167 0 317 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 1944

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

[startup+38.3014 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 2694
/proc/meminfo: memFree=1087824/2055920 swapFree=4177768/4192956
[pid=2693] ppid=2691 vsize=2012 CPUtime=38.28
/proc/2693/stat : 2693 (march_hi) R 2691 2693 1898 0 -1 4194304 374 0 0 0 3828 0 0 0 25 0 1 0 1101895046 2060288 357 1992294400 134512640 135197378 4294956240 18446744073709551615 134605243 0 0 4096 0 0 0 0 17 1 0 0
/proc/2693/statm: 503 357 91 167 0 334 0
Current children cumulated CPU time (s) 38.28
Current children cumulated vsize (KiB) 2012

[startup+41.5017 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 2694
/proc/meminfo: memFree=1087760/2055920 swapFree=4177768/4192956
[pid=2693] ppid=2691 vsize=2112 CPUtime=41.48
/proc/2693/stat : 2693 (march_hi) R 2691 2693 1898 0 -1 4194304 383 0 0 0 4148 0 0 0 25 0 1 0 1101895046 2162688 366 1992294400 134512640 135197378 4294956240 18446744073709551615 134539266 0 0 4096 0 0 0 0 17 1 0 0
/proc/2693/statm: 528 366 91 167 0 359 0
Current children cumulated CPU time (s) 41.48
Current children cumulated vsize (KiB) 2112

[startup+44.7021 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 2694
/proc/meminfo: memFree=1087760/2055920 swapFree=4177768/4192956
[pid=2693] ppid=2691 vsize=2112 CPUtime=44.67
/proc/2693/stat : 2693 (march_hi) R 2691 2693 1898 0 -1 4194304 391 0 0 0 4467 0 0 0 25 0 1 0 1101895046 2162688 374 1992294400 134512640 135197378 4294956240 18446744073709551615 134539195 0 0 4096 0 0 0 0 17 1 0 0
/proc/2693/statm: 528 374 91 167 0 359 0
Current children cumulated CPU time (s) 44.67
Current children cumulated vsize (KiB) 2112

[startup+46.3012 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 2694
/proc/meminfo: memFree=1087696/2055920 swapFree=4177768/4192956
[pid=2693] ppid=2691 vsize=2112 CPUtime=46.27
/proc/2693/stat : 2693 (march_hi) R 2691 2693 1898 0 -1 4194304 396 0 0 0 4627 0 0 0 25 0 1 0 1101895046 2162688 379 1992294400 134512640 135197378 4294956240 18446744073709551615 134525296 0 0 4096 0 0 0 0 17 1 0 0
/proc/2693/statm: 528 379 91 167 0 359 0
Current children cumulated CPU time (s) 46.27
Current children cumulated vsize (KiB) 2112

[startup+46.7013 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 2694
/proc/meminfo: memFree=1087696/2055920 swapFree=4177768/4192956
[pid=2693] ppid=2691 vsize=2112 CPUtime=46.67
/proc/2693/stat : 2693 (march_hi) R 2691 2693 1898 0 -1 4194304 398 0 0 0 4667 0 0 0 25 0 1 0 1101895046 2162688 381 1992294400 134512640 135197378 4294956240 18446744073709551615 134594078 0 0 4096 0 0 0 0 17 1 0 0
/proc/2693/statm: 528 381 91 167 0 359 0
Current children cumulated CPU time (s) 46.67
Current children cumulated vsize (KiB) 2112

[startup+46.9013 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 2694
/proc/meminfo: memFree=1087696/2055920 swapFree=4177768/4192956
[pid=2693] ppid=2691 vsize=2112 CPUtime=46.87
/proc/2693/stat : 2693 (march_hi) R 2691 2693 1898 0 -1 4194304 399 0 0 0 4687 0 0 0 25 0 1 0 1101895046 2162688 382 1992294400 134512640 135197378 4294956240 18446744073709551615 134525351 0 0 4096 0 0 0 0 17 1 0 0
/proc/2693/statm: 528 382 91 167 0 359 0
Current children cumulated CPU time (s) 46.87
Current children cumulated vsize (KiB) 2112

Child status: 20
Real time (s): 46.9152
CPU time (s): 46.8969
CPU user time (s): 46.8919
CPU system time (s): 0.004999
CPU usage (%): 99.9609
Max. virtual memory (cumulated for all children) (KiB): 2112

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 46.8919
system time used= 0.004999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 402
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= 472

runsolver used 0.045993 second user time and 0.104984 second system time

The end

Launcher Data 

Begin job on node2 at 2009-03-29 04:04:42
IDJOB=1517869
IDBENCH=70632
IDSOLVER=521
FILE ID=node2/1517869-1238292282
PBS_JOBID= 9061005
Free space on /tmp= 66496 MiB

SOLVER NAME= march_hi hi
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/UNKNOWN/380/unif-k3-r4.25-v380-c1615-S260616787-042.cnf
COMMAND LINE= HOME/march_hi BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1517869-1238292282/watcher-1517869-1238292282 -o /tmp/evaluation-result-1517869-1238292282/solver-1517869-1238292282 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/march_hi HOME/instance-1517869-1238292282.cnf

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

MD5SUM BENCH= 9a70ac660abd105bceac08fd27643051
RANDOM SEED=1460725800

node2.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:      2055920 kB
MemFree:       1089592 kB
Buffers:        101792 kB
Cached:         765528 kB
SwapCached:       8996 kB
Active:          88056 kB
Inactive:       790280 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1089592 kB
SwapTotal:     4192956 kB
SwapFree:      4177768 kB
Dirty:             796 kB
Writeback:           0 kB
Mapped:          16668 kB
Slab:            73880 kB
Committed_AS:  2711588 kB
PageTables:       1476 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= 66496 MiB
End job on node2 at 2009-03-29 04:05:29