Trace number 368908

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, and are wall clock time (not CPU 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 KS 2007-02-08Signal 24.7472 24.7575

General information on the benchmark

Namecrafted/Medium/contest05/jarvisalo/
mod2c-rand3bip-sat-190-3.sat05-2445.reshuffled-07.cnf
MD5SUMba385c05848b5f8fd49dff62bba43c15
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark21.6577
Satisfiable
(Un)Satisfiability was proved
Number of variables271
Number of clauses1972
Sum of the clauses size8840
Maximum clause length6
Minimum clause length4
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 30
Number of clauses of size 41120
Number of clauses of size 5752
Number of clauses of size over 5100

Solver Data (download as text)

0.00/0.02	c main():: ***                                   [ march satisfiability solver ]                                   ***
0.00/0.02	c main()::  **            Copyright (C) 2001-2004 M. Dufour, M. Heule, J. van Zwieten and H. van Maaren            **
0.00/0.02	c main()::   * This program may be redistributed and/or modified under the terms of the GNU Gereral Public License *
0.00/0.02	c main()::
0.00/0.02	c initFormula():: searching for DIMACS p-line....
0.00/0.02	c initFormula():: the DIMACS p-line indicates a CNF of 271 variables and 1972 clauses.
0.00/0.02	c parseCNF():: parsing....
0.00/0.02	c parseCNF():: the CNF contains 0 unary clauses.
0.00/0.02	c runParser():: parsing was successful, warming up engines...
0.00/0.02	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.00/0.02	c preprocessing fase I completed:: there are now 271 free variables and 1972 clauses.
0.00/0.02	c stat :: sign balance is biased by 0.012
0.00/0.02	c shorten_equivalence(): average equivalence length reduced from nan to nan
0.00/0.02	c using k-SAT heuristics (size based diff)
0.00/0.02	c longest clause has size 6
0.00/0.02	c simplify_formula():: removed 0 tautological, 0 satisfied and 631 duplicate clauses
0.00/0.02	c resolvent_look() :: found 1210 resolvents
0.00/0.02	c main():: clause / variable ratio: ( 3182 / 271 ) = 11.74
0.00/0.02	c longest clause has size 6
0.00/0.02	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.00/0.02	c dynamic_preselect_setsize :: off
0.00/0.02	c suggested doublelook initial :: 0
0.00/0.02	c main():: all systems go!
0.00/0.02	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |********************************
c |****************************************************************| 0 NC: 249 JD: 34
0.00/0.05	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: 2865 JD: 34
0.29/0.36	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |*****************
c |******************
c |********************
c |************************
c |*************************
c |**************************
c |****************************
c |*****************************
c |******************************
c |*******************************
c |********************************
c |*********************************
c |**********************************
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: 25954 JD: 34
3.20/3.23	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |*********
c |**********
c |************
c |*************
c |**************
c |***************
c |****************
c |*****************
c |******************
c |********************
c |*********************
c |**********************
c |***********************
c |************************
c |*************************
c |**************************
c |***************************
c |****************************
c |*****************************
c |******************************
c |*******************************
c |********************************
c |*********************************
c |**********************************
c |************************************
c |*************************************
c |**************************************
c |***************************************
c |****************************************
c |*****************************************
c |******************************************
c |*******************************************
c |********************************************
c |*********************************************
c |**********************************************
c |***********************************************
c |************************************************
c |*************************************************
c |**************************************************
c |***************************************************
c |****************************************************
c |*****************************************************
c |******************************************************
c |*******************************************************
c |********************************************************
c |*********************************************************
c |**********************************************************
c |***********************************************************
c |************************************************************
c |*************************************************************
c |**************************************************************
c |***************************************************************

Verifier Data (download as text)

ERROR: Unexpected answer ! (SATISFIABLE/UNSATISFIABLE expected)
Got answer:

Watcher Data (download as text)

runsolver version 3.2.2 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node19/watcher-368908-1177249169 -o ROOT/results/node19/solver-368908-1177249169 -C 5000 -W 7500 -M 1800 --output-limit 1,15 /tmp/evaluation/368908-1177249169/march_ks /tmp/evaluation/368908-1177249169/instance-368908-1177249169.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 5000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 5030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 7500 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: 0.78 0.95 0.98 3/77 11673
/proc/meminfo: memFree=1701368/2055920 swapFree=4159420/4192956
[pid=11673] ppid=11671 vsize=796 CPUtime=0
/proc/11673/stat : 11673 (march_ks) R 11671 11673 11617 0 -1 4194304 112 0 0 0 0 0 0 0 18 0 1 0 172834268 815104 96 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134662703 0 0 4096 0 0 0 0 17 1 0 0
/proc/11673/statm: 199 98 48 123 0 74 0

[startup+0.0730161 s]
/proc/loadavg: 0.78 0.95 0.98 3/77 11673
/proc/meminfo: memFree=1701368/2055920 swapFree=4159420/4192956
[pid=11673] ppid=11671 vsize=1276 CPUtime=0.06
/proc/11673/stat : 11673 (march_ks) R 11671 11673 11617 0 -1 4194304 256 0 0 0 6 0 0 0 18 0 1 0 172834268 1306624 238 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134597105 0 0 4096 0 0 0 0 17 1 0 0
/proc/11673/statm: 319 238 72 123 0 194 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 1276

[startup+0.10102 s]
/proc/loadavg: 0.78 0.95 0.98 3/77 11673
/proc/meminfo: memFree=1701368/2055920 swapFree=4159420/4192956
[pid=11673] ppid=11671 vsize=1276 CPUtime=0.09
/proc/11673/stat : 11673 (march_ks) R 11671 11673 11617 0 -1 4194304 256 0 0 0 9 0 0 0 18 0 1 0 172834268 1306624 238 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134587542 0 0 4096 0 0 0 0 17 1 0 0
/proc/11673/statm: 319 238 72 123 0 194 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1276

[startup+0.301041 s]
/proc/loadavg: 0.78 0.95 0.98 3/77 11673
/proc/meminfo: memFree=1701368/2055920 swapFree=4159420/4192956
[pid=11673] ppid=11671 vsize=1276 CPUtime=0.29
/proc/11673/stat : 11673 (march_ks) R 11671 11673 11617 0 -1 4194304 256 0 0 0 29 0 0 0 19 0 1 0 172834268 1306624 238 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134564818 0 0 4096 0 0 0 0 17 1 0 0
/proc/11673/statm: 319 238 72 123 0 194 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1276

[startup+0.701084 s]
/proc/loadavg: 0.78 0.95 0.98 3/77 11673
/proc/meminfo: memFree=1701368/2055920 swapFree=4159420/4192956
[pid=11673] ppid=11671 vsize=1424 CPUtime=0.69
/proc/11673/stat : 11673 (march_ks) R 11671 11673 11617 0 -1 4194304 266 0 0 0 69 0 0 0 23 0 1 0 172834268 1458176 248 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134579161 0 0 4096 0 0 0 0 17 1 0 0
/proc/11673/statm: 356 248 72 123 0 231 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1424

[startup+1.50117 s]
/proc/loadavg: 0.78 0.95 0.98 2/78 11674
/proc/meminfo: memFree=1700592/2055920 swapFree=4159420/4192956
[pid=11673] ppid=11671 vsize=1424 CPUtime=1.49
/proc/11673/stat : 11673 (march_ks) R 11671 11673 11617 0 -1 4194304 274 0 0 0 149 0 0 0 25 0 1 0 172834268 1458176 256 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134547915 0 0 4096 0 0 0 0 17 1 0 0
/proc/11673/statm: 356 256 72 123 0 231 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 1424

[startup+3.10135 s]
/proc/loadavg: 0.78 0.95 0.98 2/78 11674
/proc/meminfo: memFree=1700400/2055920 swapFree=4159420/4192956
[pid=11673] ppid=11671 vsize=1568 CPUtime=3.09
/proc/11673/stat : 11673 (march_ks) R 11671 11673 11617 0 -1 4194304 319 0 0 0 309 0 0 0 25 0 1 0 172834268 1605632 300 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134564818 0 0 4096 0 0 0 0 17 1 0 0
/proc/11673/statm: 392 300 72 123 0 267 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 1568

[startup+6.30169 s]
/proc/loadavg: 0.80 0.95 0.98 2/78 11674
/proc/meminfo: memFree=1699960/2055920 swapFree=4159420/4192956
[pid=11673] ppid=11671 vsize=1820 CPUtime=6.29
/proc/11673/stat : 11673 (march_ks) R 11671 11673 11617 0 -1 4194304 380 0 0 0 629 0 0 0 25 0 1 0 172834268 1863680 361 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134579138 0 0 4096 0 0 0 0 17 1 0 0
/proc/11673/statm: 455 361 72 123 0 330 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 1820

[startup+12.7014 s]
/proc/loadavg: 0.81 0.95 0.98 2/78 11674
/proc/meminfo: memFree=1699656/2055920 swapFree=4159420/4192956
[pid=11673] ppid=11671 vsize=2048 CPUtime=12.69
/proc/11673/stat : 11673 (march_ks) R 11671 11673 11617 0 -1 4194304 438 0 0 0 1269 0 0 0 25 0 1 0 172834268 2097152 419 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134527258 0 0 4096 0 0 0 0 17 1 0 0
/proc/11673/statm: 512 419 72 123 0 387 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 2048

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

[startup+19.1011 s]
/proc/loadavg: 0.84 0.95 0.98 2/78 11674
/proc/meminfo: memFree=1699464/2055920 swapFree=4159420/4192956
[pid=11673] ppid=11671 vsize=2388 CPUtime=19.08
/proc/11673/stat : 11673 (march_ks) R 11671 11673 11617 0 -1 4194304 497 0 0 0 1908 0 0 0 25 0 1 0 172834268 2445312 478 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134541945 0 0 4096 0 0 0 0 17 1 0 0
/proc/11673/statm: 597 478 72 123 0 472 0
Current children cumulated CPU time (s) 19.08
Current children cumulated vsize (KiB) 2388

[startup+22.3014 s]
/proc/loadavg: 0.84 0.95 0.98 2/78 11674
/proc/meminfo: memFree=1699336/2055920 swapFree=4159420/4192956
[pid=11673] ppid=11671 vsize=2388 CPUtime=22.28
/proc/11673/stat : 11673 (march_ks) R 11671 11673 11617 0 -1 4194304 521 0 0 0 2228 0 0 0 25 0 1 0 172834268 2445312 502 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134585492 0 0 4096 0 0 0 0 17 1 0 0
/proc/11673/statm: 597 502 72 123 0 472 0
Current children cumulated CPU time (s) 22.28
Current children cumulated vsize (KiB) 2388

[startup+23.9016 s]
/proc/loadavg: 0.84 0.95 0.98 2/78 11674
/proc/meminfo: memFree=1699336/2055920 swapFree=4159420/4192956
[pid=11673] ppid=11671 vsize=2388 CPUtime=23.88
/proc/11673/stat : 11673 (march_ks) R 11671 11673 11617 0 -1 4194304 530 0 0 0 2388 0 0 0 25 0 1 0 172834268 2445312 511 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134538429 0 0 4096 0 0 0 0 17 1 0 0
/proc/11673/statm: 597 511 72 123 0 472 0
Current children cumulated CPU time (s) 23.88
Current children cumulated vsize (KiB) 2388

[startup+24.3016 s]
/proc/loadavg: 0.85 0.95 0.98 2/78 11674
/proc/meminfo: memFree=1699272/2055920 swapFree=4159420/4192956
[pid=11673] ppid=11671 vsize=2388 CPUtime=24.28
/proc/11673/stat : 11673 (march_ks) R 11671 11673 11617 0 -1 4194304 534 0 0 0 2428 0 0 0 25 0 1 0 172834268 2445312 515 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134564774 0 0 4096 0 0 0 0 17 1 0 0
/proc/11673/statm: 597 515 72 123 0 472 0
Current children cumulated CPU time (s) 24.28
Current children cumulated vsize (KiB) 2388

[startup+24.7017 s]
/proc/loadavg: 0.85 0.95 0.98 2/78 11674
/proc/meminfo: memFree=1699272/2055920 swapFree=4159420/4192956
[pid=11673] ppid=11671 vsize=2388 CPUtime=24.68
/proc/11673/stat : 11673 (march_ks) R 11671 11673 11617 0 -1 4194304 538 0 0 0 2468 0 0 0 25 0 1 0 172834268 2445312 519 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134585186 0 0 4096 0 0 0 0 17 1 0 0
/proc/11673/statm: 597 519 72 123 0 472 0
Current children cumulated CPU time (s) 24.68
Current children cumulated vsize (KiB) 2388

Child ended because it received signal 11 (SIGSEGV)
Real time (s): 24.7575
CPU time (s): 24.7472
CPU user time (s): 24.7332
CPU system time (s): 0.013997
CPU usage (%): 99.9584
Max. virtual memory (cumulated for all children) (KiB): 2388

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 24.7332
system time used= 0.013997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 692
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= 8
involuntary context switches= 496

runsolver used 0.030995 second user time and 0.06499 second system time

The end

Launcher Data (download as text)

Begin job on node19 on Sun Apr 22 13:39:29 UTC 2007

IDJOB= 368908
IDBENCH= 24607
IDSOLVER= 180
FILE ID= node19/368908-1177249169

PBS_JOBID= 4650577

Free space on /tmp= 66464 MiB

SOLVER NAME= March KS 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/crafted/Medium/contest05/jarvisalo/mod2c-rand3bip-sat-190-3.sat05-2445.reshuffled-07.cnf
COMMAND LINE= /tmp/evaluation/368908-1177249169/march_ks /tmp/evaluation/368908-1177249169/instance-368908-1177249169.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node19/watcher-368908-1177249169 -o ROOT/results/node19/solver-368908-1177249169 -C 5000 -W 7500 -M 1800 --output-limit 1,15  /tmp/evaluation/368908-1177249169/march_ks /tmp/evaluation/368908-1177249169/instance-368908-1177249169.cnf            

META MD5SUM SOLVER= d41d8cd98f00b204e9800998ecf8427e
MD5SUM BENCH=  ba385c05848b5f8fd49dff62bba43c15

RANDOM SEED= 187228166

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB

Linux node19.alineos.net 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005 x86_64 x86_64 x86_64 GNU/Linux

/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		: 3000.213
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		: 3000.213
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:       1701776 kB
Buffers:         55568 kB
Cached:         206132 kB
SwapCached:       2344 kB
Active:         170012 kB
Inactive:       115420 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1701776 kB
SwapTotal:     4192956 kB
SwapFree:      4159420 kB
Dirty:            2512 kB
Writeback:           0 kB
Mapped:          30608 kB
Slab:            54248 kB
Committed_AS:  4657848 kB
PageTables:       1784 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= 66462 MiB

End job on node19 on Sun Apr 22 13:39:54 UTC 2007