Trace number 1806942

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 46.8599 46.8758

General information on the benchmark

NameCRAFTED/ramseycube/
Q32inK09.cnf
MD5SUM58cbf73dc7f1fd4bb325152069db03fb
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark45.6941
Satisfiable
(Un)Satisfiability was proved
Number of variables36
Number of clauses7938
Sum of the clauses size92232
Maximum clause length12
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 4378
Number of clauses of size 50
Number of clauses of size over 57560

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:  36                                                   |
0.00/0.00	|  Number of clauses:    7938                                                 |
0.00/0.01	|  Parsing time:         0.01         s                                       |
0.49/0.55	============================[ Search Statistics ]==============================
0.49/0.55	| Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.49/0.55	|           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.49/0.55	===============================================================================
0.49/0.55	|         0 |      36     7938    92232 |     2646        0    nan |  0.000 % |
0.49/0.55	|       100 |      36     7938    92232 |     2910      100     21 |  0.079 % |
0.49/0.56	|       251 |      36     7938    92232 |     3201      251     19 |  0.079 % |
0.49/0.58	|       478 |      36     7938    92232 |     3521      478     18 |  0.079 % |
0.59/0.60	|       817 |      36     7938    92232 |     3874      817     18 |  0.079 % |
0.59/0.64	|      1323 |      36     7938    92232 |     4261     1323     17 |  0.079 % |
0.69/0.70	|      2083 |      36     7938    92232 |     4687     2083     17 |  0.079 % |
0.69/0.79	|      3224 |      36     7938    92232 |     5156     3224     17 |  0.079 % |
0.89/0.97	|      4933 |      36     7938    92232 |     5671     4933     17 |  0.079 % |
1.19/1.23	|      7495 |      36     7938    92232 |     6239     4649     16 |  0.079 % |
1.49/1.60	|     11339 |      36     7938    92232 |     6863     5363     16 |  0.079 % |
2.10/2.20	|     17106 |      36     7938    92232 |     7549     4243     16 |  0.079 % |
2.99/3.00	|     25755 |      36     7938    92232 |     8304     5326     15 |  0.079 % |
4.29/4.34	|     38730 |      36     7938    92232 |     9134     5825     15 |  0.079 % |
6.29/6.32	|     58191 |      36     7938    92232 |    10048     6982     15 |  0.079 % |
9.19/9.28	|     87383 |      36     7938    92232 |    11052     5973     15 |  0.079 % |
13.68/13.80	|    131173 |      36     7938    92232 |    12158    11016     15 |  0.079 % |
20.89/20.95	|    196860 |      36     7938    92232 |    13374     9723     14 |  0.082 % |
31.98/32.07	|    295386 |      36     7938    92232 |    14711     7803     13 |  0.234 % |
46.77/46.87	===============================================================================
46.77/46.87	restarts              : 19
46.77/46.87	conflicts             : 430199         (9182 /sec)
46.77/46.87	decisions             : 452083         (1.66 % random) (9649 /sec)
46.77/46.87	propagations          : 3025274        (64572 /sec)
46.77/46.87	conflict literals     : 6106212        (23.84 % deleted)
46.77/46.87	Memory used           : 5.33 MB
46.77/46.87	CPU time              : 46.8509 s
46.77/46.87	
46.77/46.87	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-1806942-1242153673/watcher-1806942-1242153673 -o /tmp/evaluation-result-1806942-1242153673/solver-1806942-1242153673 -C 1200 -W 1800 -M 1800 minisat_static HOME/instance-1806942-1242153673.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: 1.00 1.00 0.97 3/65 27996
/proc/meminfo: memFree=1365648/2055920 swapFree=4181612/4192956
[pid=27996] ppid=27994 vsize=2188 CPUtime=0
/proc/27996/stat : 27996 (minisat_static) R 27994 27996 27234 0 -1 4194304 236 0 0 0 0 0 0 0 22 0 1 0 243396326 2240512 221 1992294400 134512640 135243866 4294956256 18446744073709551615 134538463 0 0 4096 3 0 0 0 17 1 0 0
/proc/27996/statm: 547 221 65 178 0 367 0

[startup+0.0197219 s]
/proc/loadavg: 1.00 1.00 0.97 3/65 27996
/proc/meminfo: memFree=1365648/2055920 swapFree=4181612/4192956
[pid=27996] ppid=27994 vsize=3160 CPUtime=0.01
/proc/27996/stat : 27996 (minisat_static) R 27994 27996 27234 0 -1 4194304 495 0 0 0 1 0 0 0 22 0 1 0 243396326 3235840 480 1992294400 134512640 135243866 4294956256 18446744073709551615 134535826 0 0 4096 3 0 0 0 17 1 0 0
/proc/27996/statm: 790 480 80 178 0 610 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 3160

[startup+0.102732 s]
/proc/loadavg: 1.00 1.00 0.97 3/65 27996
/proc/meminfo: memFree=1365648/2055920 swapFree=4181612/4192956
[pid=27996] ppid=27994 vsize=3160 CPUtime=0.09
/proc/27996/stat : 27996 (minisat_static) R 27994 27996 27234 0 -1 4194304 495 0 0 0 9 0 0 0 22 0 1 0 243396326 3235840 480 1992294400 134512640 135243866 4294956256 18446744073709551615 134535464 0 0 4096 3 0 0 0 17 1 0 0
/proc/27996/statm: 790 480 80 178 0 610 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3160

[startup+0.301752 s]
/proc/loadavg: 1.00 1.00 0.97 3/65 27996
/proc/meminfo: memFree=1365648/2055920 swapFree=4181612/4192956
[pid=27996] ppid=27994 vsize=3160 CPUtime=0.29
/proc/27996/stat : 27996 (minisat_static) R 27994 27996 27234 0 -1 4194304 512 0 0 0 29 0 0 0 24 0 1 0 243396326 3235840 497 1992294400 134512640 135243866 4294956256 18446744073709551615 134524955 0 0 4096 3 0 0 0 17 1 0 0
/proc/27996/statm: 790 497 80 178 0 610 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3160

[startup+0.701797 s]
/proc/loadavg: 1.00 1.00 0.97 3/65 27996
/proc/meminfo: memFree=1365648/2055920 swapFree=4181612/4192956
[pid=27996] ppid=27994 vsize=2920 CPUtime=0.69
/proc/27996/stat : 27996 (minisat_static) R 27994 27996 27234 0 -1 4194304 519 0 0 0 69 0 0 0 25 0 1 0 243396326 2990080 446 1992294400 134512640 135243866 4294956256 18446744073709551615 134555920 0 0 4096 3 0 0 0 17 1 0 0
/proc/27996/statm: 730 446 85 178 0 550 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 2920

[startup+1.50189 s]
/proc/loadavg: 1.00 1.00 0.97 2/66 27997
/proc/meminfo: memFree=1363912/2055920 swapFree=4181612/4192956
[pid=27996] ppid=27994 vsize=3496 CPUtime=1.49
/proc/27996/stat : 27996 (minisat_static) R 27994 27996 27234 0 -1 4194304 632 0 0 0 149 0 0 0 25 0 1 0 243396326 3579904 559 1992294400 134512640 135243866 4294956256 18446744073709551615 134555886 0 0 4096 3 0 0 0 17 1 0 0
/proc/27996/statm: 874 559 85 178 0 694 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 3496

[startup+3.10106 s]
/proc/loadavg: 1.00 1.00 0.97 2/66 27997
/proc/meminfo: memFree=1363400/2055920 swapFree=4181612/4192956
[pid=27996] ppid=27994 vsize=3776 CPUtime=3.09
/proc/27996/stat : 27996 (minisat_static) R 27994 27996 27234 0 -1 4194304 700 0 0 0 309 0 0 0 25 0 1 0 243396326 3866624 627 1992294400 134512640 135243866 4294956256 18446744073709551615 134555920 0 0 4096 3 0 0 0 17 1 0 0
/proc/27996/statm: 944 627 85 178 0 764 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 3776

[startup+6.30142 s]
/proc/loadavg: 1.00 1.00 0.97 2/66 27997
/proc/meminfo: memFree=1363016/2055920 swapFree=4181612/4192956
[pid=27996] ppid=27994 vsize=4068 CPUtime=6.29
/proc/27996/stat : 27996 (minisat_static) R 27994 27996 27234 0 -1 4194304 776 0 0 0 629 0 0 0 25 0 1 0 243396326 4165632 703 1992294400 134512640 135243866 4294956256 18446744073709551615 134555920 0 0 4096 3 0 0 0 17 1 0 0
/proc/27996/statm: 1017 703 85 178 0 837 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 4068

[startup+12.7011 s]
/proc/loadavg: 1.00 1.00 0.97 2/66 27997
/proc/meminfo: memFree=1362512/2055920 swapFree=4181612/4192956
[pid=27996] ppid=27994 vsize=4560 CPUtime=12.69
/proc/27996/stat : 27996 (minisat_static) R 27994 27996 27234 0 -1 4194304 879 0 0 0 1269 0 0 0 25 0 1 0 243396326 4669440 806 1992294400 134512640 135243866 4294956256 18446744073709551615 134563791 0 0 4096 3 0 0 0 17 1 0 0
/proc/27996/statm: 1140 806 85 178 0 960 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 4560

[startup+25.5015 s]
/proc/loadavg: 1.00 1.00 0.97 2/66 27997
/proc/meminfo: memFree=1361936/2055920 swapFree=4181612/4192956
[pid=27996] ppid=27994 vsize=5168 CPUtime=25.48
/proc/27996/stat : 27996 (minisat_static) R 27994 27996 27234 0 -1 4194304 1021 0 0 0 2548 0 0 0 25 0 1 0 243396326 5292032 948 1992294400 134512640 135243866 4294956256 18446744073709551615 134555850 0 0 4096 3 0 0 0 17 1 0 0
/proc/27996/statm: 1292 948 85 178 0 1112 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 5168

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

[startup+38.302 s]
/proc/loadavg: 1.00 1.00 0.97 2/66 27997
/proc/meminfo: memFree=1361744/2055920 swapFree=4181612/4192956
[pid=27996] ppid=27994 vsize=5312 CPUtime=38.28
/proc/27996/stat : 27996 (minisat_static) R 27994 27996 27234 0 -1 4194304 1072 0 0 0 3828 0 0 0 25 0 1 0 243396326 5439488 999 1992294400 134512640 135243866 4294956256 18446744073709551615 134555699 0 0 4096 3 0 0 0 17 1 0 0
/proc/27996/statm: 1328 999 85 178 0 1148 0
Current children cumulated CPU time (s) 38.28
Current children cumulated vsize (KiB) 5312

[startup+41.5013 s]
/proc/loadavg: 1.00 1.00 0.97 2/66 27997
/proc/meminfo: memFree=1361680/2055920 swapFree=4181612/4192956
[pid=27996] ppid=27994 vsize=5312 CPUtime=41.47
/proc/27996/stat : 27996 (minisat_static) R 27994 27996 27234 0 -1 4194304 1073 0 0 0 4147 0 0 0 25 0 1 0 243396326 5439488 1000 1992294400 134512640 135243866 4294956256 18446744073709551615 134555813 0 0 4096 3 0 0 0 17 1 0 0
/proc/27996/statm: 1328 1000 85 178 0 1148 0
Current children cumulated CPU time (s) 41.47
Current children cumulated vsize (KiB) 5312

[startup+44.7017 s]
/proc/loadavg: 1.00 1.00 0.97 2/66 27997
/proc/meminfo: memFree=1361680/2055920 swapFree=4181612/4192956
[pid=27996] ppid=27994 vsize=5312 CPUtime=44.67
/proc/27996/stat : 27996 (minisat_static) R 27994 27996 27234 0 -1 4194304 1073 0 0 0 4467 0 0 0 25 0 1 0 243396326 5439488 1000 1992294400 134512640 135243866 4294956256 18446744073709551615 134555795 0 0 4096 3 0 0 0 17 1 0 0
/proc/27996/statm: 1328 1000 85 178 0 1148 0
Current children cumulated CPU time (s) 44.67
Current children cumulated vsize (KiB) 5312

[startup+45.5018 s]
/proc/loadavg: 1.00 1.00 0.97 2/66 27997
/proc/meminfo: memFree=1361680/2055920 swapFree=4181612/4192956
[pid=27996] ppid=27994 vsize=5452 CPUtime=45.47
/proc/27996/stat : 27996 (minisat_static) R 27994 27996 27234 0 -1 4194304 1085 0 0 0 4547 0 0 0 25 0 1 0 243396326 5582848 1012 1992294400 134512640 135243866 4294956256 18446744073709551615 134555920 0 0 4096 3 0 0 0 17 1 0 0
/proc/27996/statm: 1363 1012 85 178 0 1183 0
Current children cumulated CPU time (s) 45.47
Current children cumulated vsize (KiB) 5452

[startup+46.3018 s]
/proc/loadavg: 1.00 1.00 0.97 2/66 27997
/proc/meminfo: memFree=1361744/2055920 swapFree=4181612/4192956
[pid=27996] ppid=27994 vsize=5452 CPUtime=46.27
/proc/27996/stat : 27996 (minisat_static) R 27994 27996 27234 0 -1 4194304 1085 0 0 0 4627 0 0 0 25 0 1 0 243396326 5582848 1012 1992294400 134512640 135243866 4294956256 18446744073709551615 134555834 0 0 4096 3 0 0 0 17 1 0 0
/proc/27996/statm: 1363 1012 85 178 0 1183 0
Current children cumulated CPU time (s) 46.27
Current children cumulated vsize (KiB) 5452

[startup+46.7019 s]
/proc/loadavg: 1.00 1.00 0.97 2/66 27997
/proc/meminfo: memFree=1361744/2055920 swapFree=4181612/4192956
[pid=27996] ppid=27994 vsize=5452 CPUtime=46.67
/proc/27996/stat : 27996 (minisat_static) R 27994 27996 27234 0 -1 4194304 1085 0 0 0 4667 0 0 0 25 0 1 0 243396326 5582848 1012 1992294400 134512640 135243866 4294956256 18446744073709551615 134555740 0 0 4096 3 0 0 0 17 1 0 0
/proc/27996/statm: 1363 1012 85 178 0 1183 0
Current children cumulated CPU time (s) 46.67
Current children cumulated vsize (KiB) 5452

[startup+46.8019 s]
/proc/loadavg: 1.00 1.00 0.97 2/66 27997
/proc/meminfo: memFree=1361744/2055920 swapFree=4181612/4192956
[pid=27996] ppid=27994 vsize=5452 CPUtime=46.77
/proc/27996/stat : 27996 (minisat_static) R 27994 27996 27234 0 -1 4194304 1085 0 0 0 4677 0 0 0 25 0 1 0 243396326 5582848 1012 1992294400 134512640 135243866 4294956256 18446744073709551615 134555920 0 0 4096 3 0 0 0 17 1 0 0
/proc/27996/statm: 1363 1012 85 178 0 1183 0
Current children cumulated CPU time (s) 46.77
Current children cumulated vsize (KiB) 5452

Child status: 20
Real time (s): 46.8758
CPU time (s): 46.8599
CPU user time (s): 46.8509
CPU system time (s): 0.008998
CPU usage (%): 99.9661
Max. virtual memory (cumulated for all children) (KiB): 5452

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 46.8509
system time used= 0.008998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1095
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= 53

runsolver used 0.05999 second user time and 0.118981 second system time

The end

Launcher Data 

Begin job on node91 at 2009-05-12 20:41:13
IDJOB=1806942
IDBENCH=71133
IDSOLVER=568
FILE ID=node91/1806942-1242153673
PBS_JOBID= 9289635
Free space on /tmp= 66236 MiB

SOLVER NAME= minisat2-simp 070721
BENCH NAME= SAT09/CRAFTED/ramseycube/Q32inK09.cnf
COMMAND LINE= minisat_static BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1806942-1242153673/watcher-1806942-1242153673 -o /tmp/evaluation-result-1806942-1242153673/solver-1806942-1242153673 -C 1200 -W 1800 -M 1800  minisat_static HOME/instance-1806942-1242153673.cnf

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

MD5SUM BENCH= 58cbf73dc7f1fd4bb325152069db03fb
RANDOM SEED=1139919057

node91.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		: 3000.241
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		: 3000.241
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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1366072 kB
Buffers:         47848 kB
Cached:         562404 kB
SwapCached:       4876 kB
Active:          63456 kB
Inactive:       555580 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1366072 kB
SwapTotal:     4192956 kB
SwapFree:      4181612 kB
Dirty:            1092 kB
Writeback:           0 kB
Mapped:          15212 kB
Slab:            56616 kB
Committed_AS:   785172 kB
PageTables:       1356 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66236 MiB
End job on node91 at 2009-05-12 20:42:00