Trace number 1797972

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-core 070721UNSAT 45.6601 45.6839

General information on the benchmark

NameAPPLICATIONS/bitverif/
minxorminand/minxorminand032.cnf
MD5SUM49dda3faa6676166ee2ccb89f6cd8ca0
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark10.2294
Satisfiable
(Un)Satisfiability was proved
Number of variables10794
Number of clauses31997
Sum of the clauses size74657
Maximum clause length3
Minimum clause length1
Number of clauses of size 12
Number of clauses of size 221330
Number of clauses of size 310665
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	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:  10794                                                |
0.00/0.00	|  Number of clauses:    31997                                                |
0.01/0.02	|  Parsing time:         0.02         s                                       |
0.01/0.02	============================[ Search Statistics ]==============================
0.01/0.02	| Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.01/0.02	|           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.01/0.02	===============================================================================
0.01/0.02	|         0 |   10784    31973    74607 |    10657        0    nan |  0.000 % |
0.01/0.04	|       100 |   10784    31973    74607 |    11723      100      9 |  0.093 % |
0.01/0.07	|       250 |   10784    31973    74607 |    12895      250     14 |  0.093 % |
0.09/0.11	|       476 |   10784    31973    74607 |    14185      476     16 |  0.093 % |
0.09/0.16	|       814 |   10784    31973    74607 |    15603      814     20 |  0.093 % |
0.19/0.28	|      1322 |   10784    31973    74607 |    17164     1322     25 |  0.093 % |
0.39/0.46	|      2082 |   10784    31973    74607 |    18880     2082     42 |  0.093 % |
0.69/0.70	|      3221 |   10784    31973    74607 |    20768     3221     69 |  0.093 % |
1.29/1.36	|      4929 |   10784    31973    74607 |    22845     4929     93 |  0.093 % |
2.29/2.32	|      7495 |   10784    31973    74607 |    25130     7495    105 |  0.093 % |
4.39/4.47	|     11339 |   10784    31973    74607 |    27643    11339    127 |  0.093 % |
7.59/7.68	|     17105 |   10783    31940    74541 |    30407    17103    147 |  0.102 % |
13.98/14.01	|     25756 |   10783    31940    74541 |    33448    25754    146 |  0.102 % |
27.27/27.31	|     38730 |   10783    31940    74541 |    36793    20844    131 |  0.102 % |
44.97/45.04	|     58191 |   10782    31907    74475 |    40472    20550     93 |  0.111 % |
45.56/45.67	===============================================================================
45.56/45.67	restarts              : 15
45.56/45.67	conflicts             : 59161          (1297 /sec)
45.56/45.67	decisions             : 147480         (1.66 % random) (3234 /sec)
45.56/45.67	propagations          : 55617806       (1219526 /sec)
45.56/45.67	conflict literals     : 7888060        (36.86 % deleted)
45.56/45.67	Memory used           : 25.54 MB
45.56/45.67	CPU time              : 45.6061 s
45.56/45.67	
45.56/45.67	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-1797972-1242079034/watcher-1797972-1242079034 -o /tmp/evaluation-result-1797972-1242079034/solver-1797972-1242079034 -C 1200 -W 1800 -M 1800 minisat_static HOME/instance-1797972-1242079034.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 1.00 3/64 11036
/proc/meminfo: memFree=1214664/2055920 swapFree=4181384/4192956
[pid=11036] ppid=11034 vsize=2328 CPUtime=0
/proc/11036/stat : 11036 (minisat_static) R 11034 11036 10807 0 -1 4194304 300 0 0 0 0 0 0 0 18 0 1 0 235931452 2383872 285 1992294400 134512640 135213614 4294956256 18446744073709551615 134736207 0 0 4096 3 0 0 0 17 1 0 0
/proc/11036/statm: 582 286 58 171 0 408 0

[startup+0.018787 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 11036
/proc/meminfo: memFree=1214664/2055920 swapFree=4181384/4192956
[pid=11036] ppid=11034 vsize=3808 CPUtime=0.01
/proc/11036/stat : 11036 (minisat_static) R 11034 11036 10807 0 -1 4194304 645 0 0 0 1 0 0 0 18 0 1 0 235931452 3899392 630 1992294400 134512640 135213614 4294956256 18446744073709551615 134524573 0 0 4096 3 0 0 0 17 1 0 0
/proc/11036/statm: 952 630 58 171 0 778 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 3808

[startup+0.101801 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 11036
/proc/meminfo: memFree=1214664/2055920 swapFree=4181384/4192956
[pid=11036] ppid=11034 vsize=3944 CPUtime=0.09
/proc/11036/stat : 11036 (minisat_static) R 11034 11036 10807 0 -1 4194304 714 0 0 0 9 0 0 0 18 0 1 0 235931452 4038656 699 1992294400 134512640 135213614 4294956256 18446744073709551615 134526685 0 0 4096 3 0 0 0 17 1 0 0
/proc/11036/statm: 986 699 78 171 0 812 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3944

[startup+0.301837 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 11036
/proc/meminfo: memFree=1214664/2055920 swapFree=4181384/4192956
[pid=11036] ppid=11034 vsize=4076 CPUtime=0.29
/proc/11036/stat : 11036 (minisat_static) R 11034 11036 10807 0 -1 4194304 756 0 0 0 29 0 0 0 19 0 1 0 235931452 4173824 741 1992294400 134512640 135213614 4294956256 18446744073709551615 134526685 0 0 4096 3 0 0 0 17 1 0 0
/proc/11036/statm: 1019 741 78 171 0 845 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 4076

[startup+0.70191 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 11036
/proc/meminfo: memFree=1214664/2055920 swapFree=4181384/4192956
[pid=11036] ppid=11034 vsize=4868 CPUtime=0.69
/proc/11036/stat : 11036 (minisat_static) R 11034 11036 10807 0 -1 4194304 963 0 0 0 69 0 0 0 22 0 1 0 235931452 4984832 948 1992294400 134512640 135213614 4294956256 18446744073709551615 134719510 0 0 4096 3 0 0 0 17 1 0 0
/proc/11036/statm: 1217 948 78 171 0 1043 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 4868

[startup+1.50106 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 11037
/proc/meminfo: memFree=1210752/2055920 swapFree=4181384/4192956
[pid=11036] ppid=11034 vsize=6320 CPUtime=1.49
/proc/11036/stat : 11036 (minisat_static) R 11034 11036 10807 0 -1 4194304 1309 0 0 0 149 0 0 0 25 0 1 0 235931452 6471680 1294 1992294400 134512640 135213614 4294956256 18446744073709551615 134537547 0 0 4096 3 0 0 0 17 1 0 0
/proc/11036/statm: 1580 1294 78 171 0 1406 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 6320

[startup+3.10135 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 11037
/proc/meminfo: memFree=1208768/2055920 swapFree=4181384/4192956
[pid=11036] ppid=11034 vsize=8300 CPUtime=3.09
/proc/11036/stat : 11036 (minisat_static) R 11034 11036 10807 0 -1 4194304 1820 0 0 0 309 0 0 0 25 0 1 0 235931452 8499200 1805 1992294400 134512640 135213614 4294956256 18446744073709551615 134529474 0 0 4096 3 0 0 0 17 1 0 0
/proc/11036/statm: 2075 1805 78 171 0 1901 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 8300

[startup+6.30193 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 11037
/proc/meminfo: memFree=1204160/2055920 swapFree=4181384/4192956
[pid=11036] ppid=11034 vsize=13076 CPUtime=6.28
/proc/11036/stat : 11036 (minisat_static) R 11034 11036 10807 0 -1 4194304 3007 0 0 0 627 1 0 0 25 0 1 0 235931452 13389824 2992 1992294400 134512640 135213614 4294956256 18446744073709551615 134719510 0 0 4096 3 0 0 0 17 1 0 0
/proc/11036/statm: 3269 2992 78 171 0 3095 0
Current children cumulated CPU time (s) 6.28
Current children cumulated vsize (KiB) 13076

[startup+12.7011 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 11037
/proc/meminfo: memFree=1196992/2055920 swapFree=4181384/4192956
[pid=11036] ppid=11034 vsize=19616 CPUtime=12.68
/proc/11036/stat : 11036 (minisat_static) R 11034 11036 10807 0 -1 4194304 4620 0 0 0 1265 3 0 0 25 0 1 0 235931452 20086784 4605 1992294400 134512640 135213614 4294956256 18446744073709551615 134526885 0 0 4096 3 0 0 0 17 1 0 0
/proc/11036/statm: 4904 4605 78 171 0 4730 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 19616

[startup+25.5014 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 11037
/proc/meminfo: memFree=1189888/2055920 swapFree=4181384/4192956
[pid=11036] ppid=11034 vsize=26148 CPUtime=25.47
/proc/11036/stat : 11036 (minisat_static) R 11034 11036 10807 0 -1 4194304 6257 0 0 0 2543 4 0 0 25 0 1 0 235931452 26775552 6242 1992294400 134512640 135213614 4294956256 18446744073709551615 134526864 0 0 4096 3 0 0 0 17 1 0 0
/proc/11036/statm: 6537 6242 78 171 0 6363 0
Current children cumulated CPU time (s) 25.47
Current children cumulated vsize (KiB) 26148

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

[startup+38.3018 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 11037
/proc/meminfo: memFree=1189952/2055920 swapFree=4181384/4192956
[pid=11036] ppid=11034 vsize=26148 CPUtime=38.27
/proc/11036/stat : 11036 (minisat_static) R 11034 11036 10807 0 -1 4194304 6259 0 0 0 3823 4 0 0 25 0 1 0 235931452 26775552 6244 1992294400 134512640 135213614 4294956256 18446744073709551615 134526976 0 0 4096 3 0 0 0 17 1 0 0
/proc/11036/statm: 6537 6244 78 171 0 6363 0
Current children cumulated CPU time (s) 38.27
Current children cumulated vsize (KiB) 26148

[startup+41.5014 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 11037
/proc/meminfo: memFree=1189952/2055920 swapFree=4181384/4192956
[pid=11036] ppid=11034 vsize=26148 CPUtime=41.47
/proc/11036/stat : 11036 (minisat_static) R 11034 11036 10807 0 -1 4194304 6261 0 0 0 4143 4 0 0 25 0 1 0 235931452 26775552 6246 1992294400 134512640 135213614 4294956256 18446744073709551615 134526976 0 0 4096 3 0 0 0 17 1 0 0
/proc/11036/statm: 6537 6246 78 171 0 6363 0
Current children cumulated CPU time (s) 41.47
Current children cumulated vsize (KiB) 26148

[startup+43.1016 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 11037
/proc/meminfo: memFree=1189952/2055920 swapFree=4181384/4192956
[pid=11036] ppid=11034 vsize=26148 CPUtime=43.06
/proc/11036/stat : 11036 (minisat_static) R 11034 11036 10807 0 -1 4194304 6262 0 0 0 4302 4 0 0 25 0 1 0 235931452 26775552 6247 1992294400 134512640 135213614 4294956256 18446744073709551615 134539007 0 0 4096 3 0 0 0 17 1 0 0
/proc/11036/statm: 6537 6247 78 171 0 6363 0
Current children cumulated CPU time (s) 43.06
Current children cumulated vsize (KiB) 26148

[startup+44.7019 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 11037
/proc/meminfo: memFree=1189952/2055920 swapFree=4181384/4192956
[pid=11036] ppid=11034 vsize=26148 CPUtime=44.66
/proc/11036/stat : 11036 (minisat_static) R 11034 11036 10807 0 -1 4194304 6262 0 0 0 4462 4 0 0 25 0 1 0 235931452 26775552 6247 1992294400 134512640 135213614 4294956256 18446744073709551615 134526796 0 0 4096 3 0 0 0 17 1 0 0
/proc/11036/statm: 6537 6247 78 171 0 6363 0
Current children cumulated CPU time (s) 44.66
Current children cumulated vsize (KiB) 26148

[startup+45.106 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 11037
/proc/meminfo: memFree=1189952/2055920 swapFree=4181384/4192956
[pid=11036] ppid=11034 vsize=26148 CPUtime=45.07
/proc/11036/stat : 11036 (minisat_static) R 11034 11036 10807 0 -1 4194304 6262 0 0 0 4503 4 0 0 25 0 1 0 235931452 26775552 6247 1992294400 134512640 135213614 4294956256 18446744073709551615 134526736 0 0 4096 3 0 0 0 17 1 0 0
/proc/11036/statm: 6537 6247 78 171 0 6363 0
Current children cumulated CPU time (s) 45.07
Current children cumulated vsize (KiB) 26148

[startup+45.5011 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 11037
/proc/meminfo: memFree=1189952/2055920 swapFree=4181384/4192956
[pid=11036] ppid=11034 vsize=26148 CPUtime=45.46
/proc/11036/stat : 11036 (minisat_static) R 11034 11036 10807 0 -1 4194304 6262 0 0 0 4542 4 0 0 25 0 1 0 235931452 26775552 6247 1992294400 134512640 135213614 4294956256 18446744073709551615 134526976 0 0 4096 3 0 0 0 17 1 0 0
/proc/11036/statm: 6537 6247 78 171 0 6363 0
Current children cumulated CPU time (s) 45.46
Current children cumulated vsize (KiB) 26148

[startup+45.6011 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 11037
/proc/meminfo: memFree=1189952/2055920 swapFree=4181384/4192956
[pid=11036] ppid=11034 vsize=26148 CPUtime=45.56
/proc/11036/stat : 11036 (minisat_static) R 11034 11036 10807 0 -1 4194304 6262 0 0 0 4552 4 0 0 25 0 1 0 235931452 26775552 6247 1992294400 134512640 135213614 4294956256 18446744073709551615 134527006 0 0 4096 3 0 0 0 17 1 0 0
/proc/11036/statm: 6537 6247 78 171 0 6363 0
Current children cumulated CPU time (s) 45.56
Current children cumulated vsize (KiB) 26148

Child status: 20
Real time (s): 45.6839
CPU time (s): 45.6601
CPU user time (s): 45.6061
CPU system time (s): 0.053991
CPU usage (%): 99.9478
Max. virtual memory (cumulated for all children) (KiB): 26148

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 45.6061
system time used= 0.053991
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 6274
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= 94

runsolver used 0.037994 second user time and 0.097985 second system time

The end

Launcher Data 

Begin job on node44 at 2009-05-11 23:57:14
IDJOB=1797972
IDBENCH=70759
IDSOLVER=651
FILE ID=node44/1797972-1242079034
PBS_JOBID= 9277626
Free space on /tmp= 66372 MiB

SOLVER NAME= minisat2-core 070721
BENCH NAME= SAT09/APPLICATIONS/bitverif/minxorminand/minxorminand032.cnf
COMMAND LINE= minisat_static BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1797972-1242079034/watcher-1797972-1242079034 -o /tmp/evaluation-result-1797972-1242079034/solver-1797972-1242079034 -C 1200 -W 1800 -M 1800  minisat_static HOME/instance-1797972-1242079034.cnf

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

MD5SUM BENCH= 49dda3faa6676166ee2ccb89f6cd8ca0
RANDOM SEED=1980877227

node44.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		: 3000.267
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	: 5931.00
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		: 3000.267
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:       1215144 kB
Buffers:         70852 kB
Cached:         688736 kB
SwapCached:       5480 kB
Active:         138752 kB
Inactive:       629296 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1215144 kB
SwapTotal:     4192956 kB
SwapFree:      4181384 kB
Dirty:            1340 kB
Writeback:           0 kB
Mapped:          14524 kB
Slab:            58684 kB
Committed_AS:   806844 kB
PageTables:       1404 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= 66372 MiB
End job on node44 at 2009-05-11 23:58:00