Trace number 1775482

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
MiniSat 2.1 (Sat-race'08 Edition)UNSAT 66.1369 66.1681

General information on the benchmark

Namemanol-pipe-c6nidw_i.cnf
MD5SUM15c4413e436aecbd4fcb1d7037e18abf
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark44.8672
Satisfiable
(Un)Satisfiability was proved
Number of variables95863
Number of clauses283363
Sum of the clauses size661179
Maximum clause length3
Minimum clause length1
Number of clauses of size 11
Number of clauses of size 2188908
Number of clauses of size 394454
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 WARNING: for repeatability, setting FPU to use double precision
0.00/0.00	c ============================[ Problem Statistics ]=============================
0.00/0.00	c |                                                                             |
0.29/0.35	c |  Number of variables:         95863                                         |
0.29/0.35	c |  Number of clauses:          283362                                         |
0.29/0.35	c |  Parse time:                   0.31 s                                       |
1.90/1.90	c |  Simplification time:          1.52 s                                       |
1.90/1.90	c |                                                                             |
1.90/1.90	c ============================[ Search Statistics ]==============================
1.90/1.90	c | Conflicts |          ORIGINAL         |          LEARNT          | Progress |
1.90/1.90	c |           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
1.90/1.90	c ===============================================================================
1.90/1.95	c |       100 |   20854   128297   537917 |    47042       99     10 |  0.097 % |
1.90/1.99	c |       250 |   20854   128297   537917 |    51746      249     11 |  0.097 % |
1.99/2.07	c |       475 |   20854   128297   537917 |    56921      474     12 |  0.097 % |
2.10/2.16	c |       812 |   20854   128297   537917 |    62613      811     18 |  0.097 % |
2.20/2.24	c |      1318 |   20832   128297   537917 |    68874     1314     20 |  0.120 % |
2.29/2.36	c |      2077 |   20794   126923   532799 |    75761     2065     20 |  0.160 % |
2.49/2.53	c |      3216 |   20792   126923   532799 |    83338     3203     19 |  0.162 % |
2.89/2.99	c |      4924 |   20719   125623   527474 |    91672     4849     19 |  0.238 % |
3.39/3.42	c |      7486 |   20718   125588   527327 |   100839     7410     20 |  0.239 % |
3.89/3.97	c |     11330 |   20706   125463   526857 |   110923    11248     20 |  0.251 % |
4.89/4.90	c |     17096 |   20706   125463   526857 |   122015    17014     20 |  0.251 % |
6.18/6.27	c |     25745 |   20679   125148   525867 |   134216    25655     20 |  0.280 % |
8.08/8.18	c |     38719 |   20674   125091   525613 |   147638    38626     19 |  0.285 % |
11.18/11.25	c |     58180 |   20381   122572   514443 |   162402    58066     21 |  0.590 % |
16.98/17.03	c |     87372 |   19924   122337   513742 |   178642    87245     20 |  1.067 % |
26.08/26.12	c |    131161 |   19849   117280   488928 |   196507   115749     19 |  1.145 % |
45.67/45.71	c |    196845 |   19708   115673   482269 |   216157   180891     22 |  1.292 % |
66.06/66.15	c ===============================================================================
66.06/66.15	c restarts              : 609
66.06/66.15	c conflicts             : 258444         (3918 /sec)
66.06/66.15	c decisions             : 1276717        (19353 /sec)
66.06/66.15	c propagations          : 70310097       (1065773 /sec)
66.06/66.15	c conflict literals     : 5908025        (28.89 % deleted)
66.06/66.15	c Memory used           : 75.21 MB
66.06/66.15	c CPU time              : 65.971 s
66.06/66.15	c 
66.06/66.15	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-1775482-1241226055/watcher-1775482-1241226055 -o /tmp/evaluation-result-1775482-1241226055/solver-1775482-1241226055 -C 10000 -W 12000 -M 1800 HOME/minisat HOME/instance-1775482-1241226055.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 10000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 10030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 12000 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
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.06 1.00 0.92 3/64 24397
/proc/meminfo: memFree=1134216/2055920 swapFree=4180748/4192956
[pid=24397] ppid=24395 vsize=7612 CPUtime=0
/proc/24397/stat : 24397 (minisat) R 24395 24397 24169 0 -1 4194304 423 0 0 0 0 0 0 0 18 0 1 0 150639047 7794688 407 1992294400 4194304 5092341 548682068848 18446744073709551615 4270144 0 0 4096 3 0 0 0 17 1 0 0
/proc/24397/statm: 1903 407 63 219 0 1681 0

[startup+0.076362 s]
/proc/loadavg: 1.06 1.00 0.92 3/64 24397
/proc/meminfo: memFree=1134216/2055920 swapFree=4180748/4192956
[pid=24397] ppid=24395 vsize=13500 CPUtime=0.07
/proc/24397/stat : 24397 (minisat) R 24395 24397 24169 0 -1 4194304 2088 0 0 0 6 1 0 0 18 0 1 0 150639047 13824000 1970 1992294400 4194304 5092341 548682068848 18446744073709551615 4270245 0 0 4096 3 0 0 0 17 1 0 0
/proc/24397/statm: 3375 1972 63 219 0 3153 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 13500

[startup+0.101363 s]
/proc/loadavg: 1.06 1.00 0.92 3/64 24397
/proc/meminfo: memFree=1134216/2055920 swapFree=4180748/4192956
[pid=24397] ppid=24395 vsize=15356 CPUtime=0.09
/proc/24397/stat : 24397 (minisat) R 24395 24397 24169 0 -1 4194304 2633 0 0 0 8 1 0 0 18 0 1 0 150639047 15724544 2507 1992294400 4194304 5092341 548682068848 18446744073709551615 4270144 0 0 4096 3 0 0 0 17 1 0 0
/proc/24397/statm: 3839 2507 63 219 0 3617 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 15356

[startup+0.301385 s]
/proc/loadavg: 1.06 1.00 0.92 3/64 24397
/proc/meminfo: memFree=1134216/2055920 swapFree=4180748/4192956
[pid=24397] ppid=24395 vsize=29196 CPUtime=0.29
/proc/24397/stat : 24397 (minisat) R 24395 24397 24169 0 -1 4194304 6970 0 0 0 26 3 0 0 19 0 1 0 150639047 29896704 6383 1992294400 4194304 5092341 548682068848 18446744073709551615 4209958 0 0 4096 3 0 0 0 17 1 0 0
/proc/24397/statm: 7299 6383 63 219 0 7077 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 29196

[startup+0.701431 s]
/proc/loadavg: 1.06 1.00 0.92 3/64 24397
/proc/meminfo: memFree=1134216/2055920 swapFree=4180748/4192956
[pid=24397] ppid=24395 vsize=40892 CPUtime=0.69
/proc/24397/stat : 24397 (minisat) R 24395 24397 24169 0 -1 4194304 9555 0 0 0 64 5 0 0 23 0 1 0 150639047 41873408 8939 1992294400 4194304 5092341 548682068848 18446744073709551615 4270144 0 0 4096 3 0 0 0 17 1 0 0
/proc/24397/statm: 10223 8939 87 219 0 10001 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 40892

[startup+1.50152 s]
/proc/loadavg: 1.06 1.00 0.92 2/65 24398
/proc/meminfo: memFree=1095360/2055920 swapFree=4180748/4192956
[pid=24397] ppid=24395 vsize=48240 CPUtime=1.49
/proc/24397/stat : 24397 (minisat) R 24395 24397 24169 0 -1 4194304 11490 0 0 0 143 6 0 0 25 0 1 0 150639047 49397760 10874 1992294400 4194304 5092341 548682068848 18446744073709551615 4223130 0 0 4096 3 0 0 0 17 1 0 0
/proc/24397/statm: 12060 10874 87 219 0 11838 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 48240

[startup+3.1017 s]
/proc/loadavg: 1.06 1.00 0.92 2/65 24398
/proc/meminfo: memFree=1102336/2055920 swapFree=4180748/4192956
[pid=24397] ppid=24395 vsize=38228 CPUtime=3.09
/proc/24397/stat : 24397 (minisat) R 24395 24397 24169 0 -1 4194304 12427 0 0 0 302 7 0 0 25 0 1 0 150639047 39145472 8089 1992294400 4194304 5092341 548682068848 18446744073709551615 4241906 0 0 4096 3 0 0 0 17 1 0 0
/proc/24397/statm: 9557 8089 103 219 0 9335 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 38228

[startup+6.30107 s]
/proc/loadavg: 1.05 1.00 0.92 2/65 24404
/proc/meminfo: memFree=1100472/2055920 swapFree=4180748/4192956
[pid=24397] ppid=24395 vsize=38228 CPUtime=6.28
/proc/24397/stat : 24397 (minisat) R 24395 24397 24169 0 -1 4194304 12851 0 0 0 620 8 0 0 25 0 1 0 150639047 39145472 8513 1992294400 4194304 5092341 548682068848 18446744073709551615 4240667 0 0 4096 3 0 0 0 17 1 0 0
/proc/24397/statm: 9557 8513 103 219 0 9335 0
Current children cumulated CPU time (s) 6.28
Current children cumulated vsize (KiB) 38228

[startup+12.7018 s]
/proc/loadavg: 1.05 1.00 0.92 2/65 24404
/proc/meminfo: memFree=1096768/2055920 swapFree=4180748/4192956
[pid=24397] ppid=24395 vsize=44716 CPUtime=12.69
/proc/24397/stat : 24397 (minisat) R 24395 24397 24169 0 -1 4194304 13797 0 0 0 1260 9 0 0 25 0 1 0 150639047 45789184 9459 1992294400 4194304 5092341 548682068848 18446744073709551615 4240947 0 0 4096 3 0 0 0 17 1 0 0
/proc/24397/statm: 11179 9459 103 219 0 10957 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 44716

[startup+25.5012 s]
/proc/loadavg: 1.04 1.00 0.92 2/65 24404
/proc/meminfo: memFree=1090880/2055920 swapFree=4180748/4192956
[pid=24397] ppid=24395 vsize=50556 CPUtime=25.48
/proc/24397/stat : 24397 (minisat) R 24395 24397 24169 0 -1 4194304 15244 0 0 0 2538 10 0 0 25 0 1 0 150639047 51769344 10906 1992294400 4194304 5092341 548682068848 18446744073709551615 4241051 0 0 4096 3 0 0 0 17 1 0 0
/proc/24397/statm: 12639 10906 103 219 0 12417 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 50556

[startup+51.1012 s]
/proc/loadavg: 1.02 1.00 0.92 2/65 24404
/proc/meminfo: memFree=1079104/2055920 swapFree=4180748/4192956
[pid=24397] ppid=24395 vsize=62136 CPUtime=51.06
/proc/24397/stat : 24397 (minisat) R 24395 24397 24169 0 -1 4194304 18251 0 0 0 5093 13 0 0 25 0 1 0 150639047 63627264 13913 1992294400 4194304 5092341 548682068848 18446744073709551615 4241418 0 0 4096 3 0 0 0 17 1 0 0
/proc/24397/statm: 15534 13913 103 219 0 15312 0
Current children cumulated CPU time (s) 51.06
Current children cumulated vsize (KiB) 62136

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

[startup+57.5019 s]
/proc/loadavg: 1.02 1.00 0.92 2/65 24404
/proc/meminfo: memFree=1075456/2055920 swapFree=4180748/4192956
[pid=24397] ppid=24395 vsize=63084 CPUtime=57.46
/proc/24397/stat : 24397 (minisat) R 24395 24397 24169 0 -1 4194304 19125 0 0 0 5732 14 0 0 25 0 1 0 150639047 64598016 14787 1992294400 4194304 5092341 548682068848 18446744073709551615 4240947 0 0 4096 3 0 0 0 17 1 0 0
/proc/24397/statm: 15771 14787 103 219 0 15549 0
Current children cumulated CPU time (s) 57.46
Current children cumulated vsize (KiB) 63084

[startup+60.7013 s]
/proc/loadavg: 1.02 1.00 0.92 2/65 24404
/proc/meminfo: memFree=1074368/2055920 swapFree=4180748/4192956
[pid=24397] ppid=24395 vsize=76520 CPUtime=60.66
/proc/24397/stat : 24397 (minisat) R 24395 24397 24169 0 -1 4194304 19361 0 0 0 6052 14 0 0 25 0 1 0 150639047 78356480 15023 1992294400 4194304 5092341 548682068848 18446744073709551615 4265869 0 0 4096 3 0 0 0 17 1 0 0
/proc/24397/statm: 19130 15023 103 219 0 18908 0
Current children cumulated CPU time (s) 60.66
Current children cumulated vsize (KiB) 76520

[startup+63.9016 s]
/proc/loadavg: 1.02 1.00 0.92 2/65 24404
/proc/meminfo: memFree=1073280/2055920 swapFree=4180748/4192956
[pid=24397] ppid=24395 vsize=76852 CPUtime=63.86
/proc/24397/stat : 24397 (minisat) R 24395 24397 24169 0 -1 4194304 19648 0 0 0 6371 15 0 0 25 0 1 0 150639047 78696448 15310 1992294400 4194304 5092341 548682068848 18446744073709551615 4248396 0 0 4096 3 0 0 0 17 1 0 0
/proc/24397/statm: 19213 15310 103 219 0 18991 0
Current children cumulated CPU time (s) 63.86
Current children cumulated vsize (KiB) 76852

[startup+65.5018 s]
/proc/loadavg: 1.02 1.00 0.92 2/65 24404
/proc/meminfo: memFree=1072960/2055920 swapFree=4180748/4192956
[pid=24397] ppid=24395 vsize=76852 CPUtime=65.46
/proc/24397/stat : 24397 (minisat) R 24395 24397 24169 0 -1 4194304 19742 0 0 0 6531 15 0 0 25 0 1 0 150639047 78696448 15404 1992294400 4194304 5092341 548682068848 18446744073709551615 4240947 0 0 4096 3 0 0 0 17 1 0 0
/proc/24397/statm: 19213 15404 103 219 0 18991 0
Current children cumulated CPU time (s) 65.46
Current children cumulated vsize (KiB) 76852

[startup+65.9018 s]
/proc/loadavg: 1.02 1.00 0.92 2/65 24404
/proc/meminfo: memFree=1072704/2055920 swapFree=4180748/4192956
[pid=24397] ppid=24395 vsize=76852 CPUtime=65.87
/proc/24397/stat : 24397 (minisat) R 24395 24397 24169 0 -1 4194304 19771 0 0 0 6572 15 0 0 25 0 1 0 150639047 78696448 15433 1992294400 4194304 5092341 548682068848 18446744073709551615 4240665 0 0 4096 3 0 0 0 17 1 0 0
/proc/24397/statm: 19213 15433 103 219 0 18991 0
Current children cumulated CPU time (s) 65.87
Current children cumulated vsize (KiB) 76852

[startup+66.1019 s]
/proc/loadavg: 1.02 1.00 0.92 2/65 24404
/proc/meminfo: memFree=1072704/2055920 swapFree=4180748/4192956
[pid=24397] ppid=24395 vsize=77008 CPUtime=66.06
/proc/24397/stat : 24397 (minisat) R 24395 24397 24169 0 -1 4194304 19792 0 0 0 6591 15 0 0 25 0 1 0 150639047 78856192 15454 1992294400 4194304 5092341 548682068848 18446744073709551615 4241376 0 0 4096 3 0 0 0 17 1 0 0
/proc/24397/statm: 19252 15454 103 219 0 19030 0
Current children cumulated CPU time (s) 66.06
Current children cumulated vsize (KiB) 77008

Child status: 20
Real time (s): 66.1681
CPU time (s): 66.1369
CPU user time (s): 65.972
CPU system time (s): 0.164974
CPU usage (%): 99.953
Max. virtual memory (cumulated for all children) (KiB): 77008

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 65.972
system time used= 0.164974
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 19803
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= 151

runsolver used 0.070989 second user time and 0.154976 second system time

The end

Launcher Data 

Begin job on node23 at 2009-05-02 03:00:55
IDJOB=1775482
IDBENCH=71780
IDSOLVER=608
FILE ID=node23/1775482-1241226055
PBS_JOBID= 9224784
Free space on /tmp= 66388 MiB

SOLVER NAME= MiniSat 2.1 (Sat-race'08 Edition)
BENCH NAME= SAT_RACE06/manol-pipe-c6nidw_i.cnf
COMMAND LINE= HOME/minisat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1775482-1241226055/watcher-1775482-1241226055 -o /tmp/evaluation-result-1775482-1241226055/solver-1775482-1241226055 -C 10000 -W 12000 -M 1800  HOME/minisat HOME/instance-1775482-1241226055.cnf

TIME LIMIT= 10000 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 15c4413e436aecbd4fcb1d7037e18abf
RANDOM SEED=1906426484

node23.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		: 3000.238
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		: 3000.238
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:       1134632 kB
Buffers:         85076 kB
Cached:         732256 kB
SwapCached:       6080 kB
Active:          27464 kB
Inactive:       798336 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1134632 kB
SwapTotal:     4192956 kB
SwapFree:      4180748 kB
Dirty:            5560 kB
Writeback:           0 kB
Mapped:          14128 kB
Slab:            81440 kB
Committed_AS:   712236 kB
PageTables:       1396 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= 66388 MiB
End job on node23 at 2009-05-02 03:02:02