Trace number 1796174

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
minisat2-simp 070721UNSAT 97.9521 97.9412

General information on the benchmark

Nameindustrial/anbulagan/
medium-unsat/total-5-13-u.cnf
MD5SUM127968d7d14f3ab7655995f561e62ed8
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark56.9363
Satisfiable
(Un)Satisfiability was proved
Number of variables178708
Number of clauses806681
Sum of the clauses size1842626
Maximum clause length10
Minimum clause length1
Number of clauses of size 115072
Number of clauses of size 2648853
Number of clauses of size 3108896
Number of clauses of size 43760
Number of clauses of size 515040
Number of clauses of size over 515060

Solver Data 

0.00/0.00	This is MiniSat 2.0 beta
0.00/0.00	WARNING: for repeatability, setting FPU to use double precision
0.00/0.00	============================[ Problem Statistics ]=============================
0.00/0.00	|                                                                             |
0.00/0.00	|  Number of variables:  178708                                               |
0.00/0.00	|  Number of clauses:    806681                                               |
0.89/0.95	|  Parsing time:         0.86         s                                       |
3.39/3.48	============================[ Search Statistics ]==============================
3.39/3.48	| Conflicts |          ORIGINAL         |          LEARNT          | Progress |
3.39/3.48	|           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
3.39/3.48	===============================================================================
3.39/3.48	|         0 |   53288   312648   815270 |   104216        0    nan |  0.000 % |
3.69/3.72	|       101 |   52749   312648   815270 |   114637       92     11 | 45.898 % |
4.19/4.21	|       251 |   51163   312648   815270 |   126101      220     23 | 56.127 % |
4.49/4.58	|       478 |   51163   312648   815270 |   138711      447     36 | 56.127 % |
5.19/5.28	|       819 |   28075   143397   391185 |   152582      683     38 | 60.094 % |
5.89/5.90	|      1325 |   28071   143397   391185 |   167840     1188     41 | 60.205 % |
6.79/6.89	|      2085 |   20869    95842   266324 |   184625     1883     49 | 60.341 % |
8.59/8.62	|      3226 |   20629    94282   262212 |   203087     3008     47 | 60.341 % |
11.39/11.49	|      4934 |   20629    94282   262212 |   223396     4716     50 | 60.341 % |
16.50/16.53	|      7496 |   20629    94282   262212 |   245735     7278     50 | 60.341 % |
23.49/23.54	|     11340 |   20629    94282   262212 |   270309    11122     48 | 60.341 % |
36.09/36.16	|     17106 |   20287    92392   256903 |   297340    16886     45 | 60.532 % |
54.30/54.31	|     25756 |   20287    92392   256903 |   327074    25536     39 | 60.532 % |
82.60/82.67	|     38730 |   20027    88984   247412 |   359781     6626     34 | 60.678 % |
97.90/97.92	===============================================================================
97.90/97.92	restarts              : 14
97.90/97.92	conflicts             : 47745          (488 /sec)
97.90/97.92	decisions             : 67884          (0.84 % random) (694 /sec)
97.90/97.92	propagations          : 91531307       (935816 /sec)
97.90/97.92	conflict literals     : 1687612        (44.34 % deleted)
97.90/97.92	Memory used           : 76.88 MB
97.90/97.92	CPU time              : 97.8091 s
97.90/97.92	
97.90/97.92	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-1796174-1242071511/watcher-1796174-1242071511 -o /tmp/evaluation-result-1796174-1242071511/solver-1796174-1242071511 -C 1200 -W 1800 -M 1800 minisat_static HOME/instance-1796174-1242071511.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
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.97 1.26 1.64 2/64 2338
/proc/meminfo: memFree=1617632/2055920 swapFree=4180148/4192956
[pid=2338] ppid=2336 vsize=2208 CPUtime=0
/proc/2338/stat : 2338 (minisat_static) R 2336 2338 2272 0 -1 4194304 414 0 0 0 0 0 0 0 20 0 1 0 235184625 2260992 399 1992294400 134512640 135243866 4294956256 18446744073709551615 134553583 0 0 4096 3 0 0 0 17 1 0 0
/proc/2338/statm: 552 404 65 178 0 372 0

[startup+0.0613941 s]
/proc/loadavg: 0.97 1.26 1.64 2/64 2338
/proc/meminfo: memFree=1617632/2055920 swapFree=4180148/4192956
[pid=2338] ppid=2336 vsize=7988 CPUtime=0.05
/proc/2338/stat : 2338 (minisat_static) R 2336 2338 2272 0 -1 4194304 1738 0 0 0 5 0 0 0 20 0 1 0 235184625 8179712 1723 1992294400 134512640 135243866 4294956256 18446744073709551615 134748230 0 0 4096 3 0 0 0 17 1 0 0
/proc/2338/statm: 1997 1723 65 178 0 1817 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 7988

[startup+0.101383 s]
/proc/loadavg: 0.97 1.26 1.64 2/64 2338
/proc/meminfo: memFree=1617632/2055920 swapFree=4180148/4192956
[pid=2338] ppid=2336 vsize=13744 CPUtime=0.09
/proc/2338/stat : 2338 (minisat_static) R 2336 2338 2272 0 -1 4194304 3107 0 0 0 8 1 0 0 20 0 1 0 235184625 14073856 3092 1992294400 134512640 135243866 4294956256 18446744073709551615 134764927 0 0 4096 3 0 0 0 17 1 0 0
/proc/2338/statm: 3481 3092 65 178 0 3301 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 13744

[startup+0.301325 s]
/proc/loadavg: 0.97 1.26 1.64 2/64 2338
/proc/meminfo: memFree=1617632/2055920 swapFree=4180148/4192956
[pid=2338] ppid=2336 vsize=38808 CPUtime=0.28
/proc/2338/stat : 2338 (minisat_static) R 2336 2338 2272 0 -1 4194304 8229 0 0 0 25 3 0 0 22 0 1 0 235184625 39739392 8214 1992294400 134512640 135243866 4294956256 18446744073709551615 134748230 0 0 4096 3 0 0 0 17 1 0 0
/proc/2338/statm: 9702 8214 65 178 0 9522 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 38808

[startup+0.701212 s]
/proc/loadavg: 0.97 1.26 1.64 2/64 2338
/proc/meminfo: memFree=1617632/2055920 swapFree=4180148/4192956
[pid=2338] ppid=2336 vsize=58876 CPUtime=0.69
/proc/2338/stat : 2338 (minisat_static) R 2336 2338 2272 0 -1 4194304 13163 0 0 0 62 7 0 0 25 0 1 0 235184625 60289024 13148 1992294400 134512640 135243866 4294956256 18446744073709551615 134748230 0 0 4096 3 0 0 0 17 1 0 0
/proc/2338/statm: 14719 13148 65 178 0 14539 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 58876

[startup+1.50198 s]
/proc/loadavg: 0.97 1.26 1.64 2/65 2339
/proc/meminfo: memFree=1552984/2055920 swapFree=4180148/4192956
[pid=2338] ppid=2336 vsize=72284 CPUtime=1.48
/proc/2338/stat : 2338 (minisat_static) R 2336 2338 2272 0 -1 4194304 16794 0 0 0 139 9 0 0 25 0 1 0 235184625 74018816 16779 1992294400 134512640 135243866 4294956256 18446744073709551615 134748230 0 0 4096 3 0 0 0 17 1 0 0
/proc/2338/statm: 18071 16779 80 178 0 17891 0
Current children cumulated CPU time (s) 1.48
Current children cumulated vsize (KiB) 72284

[startup+3.10253 s]
/proc/loadavg: 0.97 1.26 1.64 2/65 2339
/proc/meminfo: memFree=1540120/2055920 swapFree=4180148/4192956
[pid=2338] ppid=2336 vsize=92048 CPUtime=3.09
/proc/2338/stat : 2338 (minisat_static) R 2336 2338 2272 0 -1 4194304 21349 0 0 0 298 11 0 0 25 0 1 0 235184625 94257152 21334 1992294400 134512640 135243866 4294956256 18446744073709551615 134530529 0 0 4096 3 0 0 0 17 1 0 0
/proc/2338/statm: 23012 21334 80 178 0 22832 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 92048

[startup+6.30162 s]
/proc/loadavg: 0.97 1.26 1.64 2/65 2339
/proc/meminfo: memFree=1542240/2055920 swapFree=4180148/4192956
[pid=2338] ppid=2336 vsize=78724 CPUtime=6.29
/proc/2338/stat : 2338 (minisat_static) R 2336 2338 2272 0 -1 4194304 21871 0 0 0 617 12 0 0 25 0 1 0 235184625 80613376 18843 1992294400 134512640 135243866 4294956256 18446744073709551615 134555680 0 0 4096 3 0 0 0 17 1 0 0
/proc/2338/statm: 19681 18843 87 178 0 19501 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 78724

[startup+12.7018 s]
/proc/loadavg: 0.97 1.25 1.64 2/65 2339
/proc/meminfo: memFree=1542312/2055920 swapFree=4180148/4192956
[pid=2338] ppid=2336 vsize=78724 CPUtime=12.69
/proc/2338/stat : 2338 (minisat_static) R 2336 2338 2272 0 -1 4194304 21871 0 0 0 1257 12 0 0 25 0 1 0 235184625 80613376 18843 1992294400 134512640 135243866 4294956256 18446744073709551615 134555920 0 0 4096 3 0 0 0 17 1 0 0
/proc/2338/statm: 19681 18843 87 178 0 19501 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 78724

[startup+25.5012 s]
/proc/loadavg: 0.98 1.24 1.63 2/65 2339
/proc/meminfo: memFree=1542440/2055920 swapFree=4180148/4192956
[pid=2338] ppid=2336 vsize=78724 CPUtime=25.49
/proc/2338/stat : 2338 (minisat_static) R 2336 2338 2272 0 -1 4194304 21871 0 0 0 2537 12 0 0 25 0 1 0 235184625 80613376 18843 1992294400 134512640 135243866 4294956256 18446744073709551615 134555746 0 0 4096 3 0 0 0 17 1 0 0
/proc/2338/statm: 19681 18843 87 178 0 19501 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 78724

[startup+51.1019 s]
/proc/loadavg: 0.98 1.22 1.61 2/65 2339
/proc/meminfo: memFree=1542440/2055920 swapFree=4180148/4192956
[pid=2338] ppid=2336 vsize=78724 CPUtime=51.09
/proc/2338/stat : 2338 (minisat_static) R 2336 2338 2272 0 -1 4194304 21871 0 0 0 5097 12 0 0 25 0 1 0 235184625 80613376 18843 1992294400 134512640 135243866 4294956256 18446744073709551615 134555784 0 0 4096 3 0 0 0 17 1 0 0
/proc/2338/statm: 19681 18843 87 178 0 19501 0
Current children cumulated CPU time (s) 51.09
Current children cumulated vsize (KiB) 78724

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

[startup+76.7016 s]
/proc/loadavg: 0.99 1.20 1.59 2/65 2339
/proc/meminfo: memFree=1542504/2055920 swapFree=4180148/4192956
[pid=2338] ppid=2336 vsize=78724 CPUtime=76.7
/proc/2338/stat : 2338 (minisat_static) R 2336 2338 2272 0 -1 4194304 21871 0 0 0 7658 12 0 0 25 0 1 0 235184625 80613376 18843 1992294400 134512640 135243866 4294956256 18446744073709551615 134555920 0 0 4096 3 0 0 0 17 1 0 0
/proc/2338/statm: 19681 18843 87 178 0 19501 0
Current children cumulated CPU time (s) 76.7
Current children cumulated vsize (KiB) 78724

[startup+89.502 s]
/proc/loadavg: 0.99 1.19 1.58 2/65 2339
/proc/meminfo: memFree=1542504/2055920 swapFree=4180148/4192956
[pid=2338] ppid=2336 vsize=78724 CPUtime=89.5
/proc/2338/stat : 2338 (minisat_static) R 2336 2338 2272 0 -1 4194304 21871 0 0 0 8938 12 0 0 25 0 1 0 235184625 80613376 18843 1992294400 134512640 135243866 4294956256 18446744073709551615 134555920 0 0 4096 3 0 0 0 17 1 0 0
/proc/2338/statm: 19681 18843 87 178 0 19501 0
Current children cumulated CPU time (s) 89.5
Current children cumulated vsize (KiB) 78724

[startup+92.7011 s]
/proc/loadavg: 0.99 1.19 1.58 2/65 2339
/proc/meminfo: memFree=1542504/2055920 swapFree=4180148/4192956
[pid=2338] ppid=2336 vsize=78724 CPUtime=92.7
/proc/2338/stat : 2338 (minisat_static) R 2336 2338 2272 0 -1 4194304 21871 0 0 0 9258 12 0 0 25 0 1 0 235184625 80613376 18843 1992294400 134512640 135243866 4294956256 18446744073709551615 134555659 0 0 4096 3 0 0 0 17 1 0 0
/proc/2338/statm: 19681 18843 87 178 0 19501 0
Current children cumulated CPU time (s) 92.7
Current children cumulated vsize (KiB) 78724

[startup+95.9012 s]
/proc/loadavg: 0.99 1.19 1.58 2/65 2339
/proc/meminfo: memFree=1542504/2055920 swapFree=4180148/4192956
[pid=2338] ppid=2336 vsize=78724 CPUtime=95.9
/proc/2338/stat : 2338 (minisat_static) R 2336 2338 2272 0 -1 4194304 21871 0 0 0 9578 12 0 0 25 0 1 0 235184625 80613376 18843 1992294400 134512640 135243866 4294956256 18446744073709551615 134555680 0 0 4096 3 0 0 0 17 1 0 0
/proc/2338/statm: 19681 18843 87 178 0 19501 0
Current children cumulated CPU time (s) 95.9
Current children cumulated vsize (KiB) 78724

[startup+96.7019 s]
/proc/loadavg: 0.99 1.19 1.58 2/65 2339
/proc/meminfo: memFree=1542504/2055920 swapFree=4180148/4192956
[pid=2338] ppid=2336 vsize=78724 CPUtime=96.7
/proc/2338/stat : 2338 (minisat_static) R 2336 2338 2272 0 -1 4194304 21871 0 0 0 9658 12 0 0 25 0 1 0 235184625 80613376 18843 1992294400 134512640 135243866 4294956256 18446744073709551615 134555920 0 0 4096 3 0 0 0 17 1 0 0
/proc/2338/statm: 19681 18843 87 178 0 19501 0
Current children cumulated CPU time (s) 96.7
Current children cumulated vsize (KiB) 78724

[startup+97.5017 s]
/proc/loadavg: 0.99 1.19 1.58 2/65 2339
/proc/meminfo: memFree=1542504/2055920 swapFree=4180148/4192956
[pid=2338] ppid=2336 vsize=78724 CPUtime=97.5
/proc/2338/stat : 2338 (minisat_static) R 2336 2338 2272 0 -1 4194304 21871 0 0 0 9738 12 0 0 25 0 1 0 235184625 80613376 18843 1992294400 134512640 135243866 4294956256 18446744073709551615 134555733 0 0 4096 3 0 0 0 17 1 0 0
/proc/2338/statm: 19681 18843 87 178 0 19501 0
Current children cumulated CPU time (s) 97.5
Current children cumulated vsize (KiB) 78724

[startup+97.9056 s]
/proc/loadavg: 0.99 1.18 1.57 2/65 2339
/proc/meminfo: memFree=1542504/2055920 swapFree=4180148/4192956
[pid=2338] ppid=2336 vsize=78724 CPUtime=97.9
/proc/2338/stat : 2338 (minisat_static) R 2336 2338 2272 0 -1 4194304 21871 0 0 0 9778 12 0 0 25 0 1 0 235184625 80613376 18843 1992294400 134512640 135243866 4294956256 18446744073709551615 134567865 0 0 4096 3 0 0 0 17 1 0 0
/proc/2338/statm: 19681 18843 87 178 0 19501 0
Current children cumulated CPU time (s) 97.9
Current children cumulated vsize (KiB) 78724

Child status: 20
Real time (s): 97.9412
CPU time (s): 97.9521
CPU user time (s): 97.8091
CPU system time (s): 0.142978
CPU usage (%): 100.011
Max. virtual memory (cumulated for all children) (KiB): 93652

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 97.8091
system time used= 0.142978
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 21881
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= 149

runsolver used 0.081987 second user time and 0.233964 second system time

The end

Launcher Data 

Begin job on node16 at 2009-05-11 21:51:52
IDJOB=1796174
IDBENCH=20347
IDSOLVER=568
FILE ID=node16/1796174-1242071511
PBS_JOBID= 9277597
Free space on /tmp= 66032 MiB

SOLVER NAME= minisat2-simp 070721
BENCH NAME= SAT07/industrial/anbulagan/medium-unsat/total-5-13-u.cnf
COMMAND LINE= minisat_static BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1796174-1242071511/watcher-1796174-1242071511 -o /tmp/evaluation-result-1796174-1242071511/solver-1796174-1242071511 -C 1200 -W 1800 -M 1800  minisat_static HOME/instance-1796174-1242071511.cnf

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

MD5SUM BENCH= 127968d7d14f3ab7655995f561e62ed8
RANDOM SEED=1548184422

node16.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		: 3000.234
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		: 3000.234
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:       1618112 kB
Buffers:         67348 kB
Cached:         313780 kB
SwapCached:       7152 kB
Active:         181888 kB
Inactive:       207736 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1618112 kB
SwapTotal:     4192956 kB
SwapFree:      4180148 kB
Dirty:           14940 kB
Writeback:           0 kB
Mapped:          13488 kB
Slab:            34252 kB
Committed_AS:   825724 kB
PageTables:       1436 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= 66032 MiB
End job on node16 at 2009-05-11 21:53:30