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 in four parts:
  1. 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 provide some useful information on the computer.
  2. 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 !
  3. 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 1200 seconds. 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 1230 seconds which will send a SIGXPU to the solver. The last limit is on the virtual memory used by the process (900Mb).
    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.
  4. 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.

General information on the benchmark

Namemps-v2-20-10/ftp.netlib.org/lp/data/normalized-mps-v2-20-10-ship04l.opb
MD5SUM2c68ccb202caa7ec35d2be2cf2e849d9
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableNO
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of terms in the objective function 63540
Biggest coefficient in the objective function 1977295568896000
Number of bits for the biggest coefficient in the objective function 51
Sum of the numbers in the objective function 435915316225983825
Number of bits of the sum of numbers in the objective function 59
Biggest number in a constraint 1977295568896000
Number of bits of the biggest number in a constraint 51
Biggest sum of numbers in a constraint 435915316225983825
Number of bits of the biggest sum of numbers59
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark37.8572
Number of variables63540
Total number of constraints352
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints352
Minimum length of a constraint30
Maximum length of a constraint2520

Trace number 9931

Launcher Data

LAUNCH ON wulflinc24 THE 2005-09-23 16:11:44 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8676 boxname=wulflinc24 idbench=472 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  2c68ccb202caa7ec35d2be2cf2e849d9  /oldhome/oroussel/tmp/wulflinc24/normalized-mps-v2-20-10-ship04l.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc24/normalized-mps-v2-20-10-ship04l.opb
IDLAUNCH: 8676
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.047
cache size	: 512 KB
fdiv_bug	: no
hlt_bug		: no
f00f_bug	: no
coma_bug	: no
fpu		: yes
fpu_exception	: yes
cpuid level	: 2
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 mmx fxsr sse
bogomips	: 888.83

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.047
cache size	: 512 KB
fdiv_bug	: no
hlt_bug		: no
f00f_bug	: no
coma_bug	: no
fpu		: yes
fpu_exception	: yes
cpuid level	: 2
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 mmx fxsr sse
bogomips	: 899.07

/proc/meminfo:
MemTotal:      1034660 kB
MemFree:        890856 kB
Buffers:         15184 kB
Cached:         109256 kB
SwapCached:          0 kB
Active:          72016 kB
Inactive:        55300 kB
HighTotal:      131008 kB
HighFree:        19852 kB
LowTotal:       903652 kB
LowFree:        871004 kB
SwapTotal:     2097892 kB
SwapFree:      2097892 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:            10884 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-23 16:15:01 (client local time) WITH STATUS 0 IN 194.508 SECONDS
stats: 8676 7 194.508 0

Solver Data

c This solver internally uses Chaff 2004.11.15 Simplified
s UNKNOWN

Watcher Data

Enforcing CPU limit (will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime (will send SIGXCPU) limit: 1230 seconds
Enforcing Stack size limit: 67108864 bytes
Enforcing memory limit (will send SIGTERM then SIGKILL): 921600 Kb
Enforcing VSIZE limit: 994918400 bytes
Current StackSize limit: 67108864 bytes
Raw data (/proc/8405/stat): 8405 (pb2sat) R 8404 8405 4059 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 21524637 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/8405/statm): 373 2 364 364 0 9 0
[pid=8405] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc24/normalized-mps-v2-20-10-ship04l.opb

[startup+10.0022 s]
Raw data (loadavg): 0.98 1.01 0.98 2/55 8405
Raw data (/proc/8405/stat): 8405 (pb2sat) R 8404 8405 4059 0 -1 0 2538 0 0 0 993 5 0 0 25 0 1 0 21524637 9506816 1851 4294967295 134512640 135987407 3221224560 3221221872 134555859 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8405/statm): 2321 1851 364 364 0 1957 0
[pid=8405] vsize: 9284
Current children cumulated CPU time (s) 9.98
Current children cumulated vsize (Kb) 9284

[startup+20.0029 s]
Raw data (loadavg): 0.99 1.01 0.98 2/55 8405
Raw data (/proc/8405/stat): 8405 (pb2sat) R 8404 8405 4059 0 -1 0 3012 0 0 0 1991 6 0 0 25 0 1 0 21524637 10723328 2318 4294967295 134512640 135987407 3221224560 3221221872 134555859 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8405/statm): 2618 2318 364 364 0 2254 0
[pid=8405] vsize: 10472
Current children cumulated CPU time (s) 19.97
Current children cumulated vsize (Kb) 10472

[startup+30.0036 s]
Raw data (loadavg): 0.99 1.01 0.98 2/55 8405
Raw data (/proc/8405/stat): 8405 (pb2sat) R 8404 8405 4059 0 -1 0 4391 0 0 0 2989 9 0 0 25 0 1 0 21524637 15634432 2952 4294967295 134512640 135987407 3221224560 3221221744 134536157 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8405/statm): 3817 2952 364 364 0 3453 0
[pid=8405] vsize: 15268
Current children cumulated CPU time (s) 29.98
Current children cumulated vsize (Kb) 15268

[startup+40.0043 s]
Raw data (loadavg): 0.99 1.01 0.98 2/55 8405
Raw data (/proc/8405/stat): 8405 (pb2sat) R 8404 8405 4059 0 -1 0 4665 0 0 0 3988 9 0 0 25 0 1 0 21524637 16310272 3221 4294967295 134512640 135987407 3221224560 3221221872 134555859 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8405/statm): 3982 3221 364 364 0 3618 0
[pid=8405] vsize: 15928
Current children cumulated CPU time (s) 39.97
Current children cumulated vsize (Kb) 15928

[startup+50.004 s]
Raw data (loadavg): 0.99 1.01 0.98 2/55 8405
Raw data (/proc/8405/stat): 8405 (pb2sat) R 8404 8405 4059 0 -1 0 4928 0 0 0 4987 11 0 0 25 0 1 0 21524637 16986112 3480 4294967295 134512640 135987407 3221224560 3221221872 134555861 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8405/statm): 4147 3480 364 364 0 3783 0
[pid=8405] vsize: 16588
Current children cumulated CPU time (s) 49.98
Current children cumulated vsize (Kb) 16588

[startup+60.0047 s]
Raw data (loadavg): 0.99 1.00 0.98 2/55 8405
Raw data (/proc/8405/stat): 8405 (pb2sat) R 8404 8405 4059 0 -1 0 5160 0 0 0 5986 11 0 0 25 0 1 0 21524637 17661952 3708 4294967295 134512640 135987407 3221224560 3221221872 134555859 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8405/statm): 4312 3708 364 364 0 3948 0
[pid=8405] vsize: 17248
Current children cumulated CPU time (s) 59.97
Current children cumulated vsize (Kb) 17248

[startup+70.0044 s]
Raw data (loadavg): 0.99 1.00 0.98 2/55 8405
Raw data (/proc/8405/stat): 8405 (pb2sat) R 8404 8405 4059 0 -1 0 5370 0 0 0 6985 12 0 0 25 0 1 0 21524637 18202624 3915 4294967295 134512640 135987407 3221224560 3221221872 134555859 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8405/statm): 4444 3915 364 364 0 4080 0
[pid=8405] vsize: 17776
Current children cumulated CPU time (s) 69.97
Current children cumulated vsize (Kb) 17776

[startup+80.0061 s]
Raw data (loadavg): 0.99 1.00 0.98 2/55 8405
Raw data (/proc/8405/stat): 8405 (pb2sat) R 8404 8405 4059 0 -1 0 5566 0 0 0 7984 13 0 0 25 0 1 0 21524637 18608128 4108 4294967295 134512640 135987407 3221224560 3221221872 134555859 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8405/statm): 4543 4108 364 364 0 4179 0
[pid=8405] vsize: 18172
Current children cumulated CPU time (s) 79.97
Current children cumulated vsize (Kb) 18172

[startup+90.0058 s]
Raw data (loadavg): 0.99 1.00 0.98 2/55 8405
Raw data (/proc/8405/stat): 8405 (pb2sat) R 8404 8405 4059 0 -1 0 5748 0 0 0 8984 13 0 0 25 0 1 0 21524637 19148800 4287 4294967295 134512640 135987407 3221224560 3221221872 134555859 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8405/statm): 4675 4287 364 364 0 4311 0
[pid=8405] vsize: 18700
Current children cumulated CPU time (s) 89.97
Current children cumulated vsize (Kb) 18700

[startup+100.006 s]
Raw data (loadavg): 0.99 1.00 0.98 2/55 8405
Raw data (/proc/8405/stat): 8405 (pb2sat) R 8404 8405 4059 0 -1 0 5918 0 0 0 9983 14 0 0 25 0 1 0 21524637 19554304 4454 4294967295 134512640 135987407 3221224560 3221221724 134637029 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8405/statm): 4774 4454 364 364 0 4410 0
[pid=8405] vsize: 19096
Current children cumulated CPU time (s) 99.97
Current children cumulated vsize (Kb) 19096

[startup+110.006 s]
Raw data (loadavg): 0.99 1.00 0.98 2/55 8405
Raw data (/proc/8405/stat): 8405 (pb2sat) R 8404 8405 4059 0 -1 0 41896 0 0 0 10903 91 0 0 25 0 1 0 21524637 156020736 30245 4294967295 134512640 135987407 3221224560 3220937564 135500012 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8405/statm): 38091 30245 364 364 0 37727 0
[pid=8405] vsize: 152364
Current children cumulated CPU time (s) 109.94
Current children cumulated vsize (Kb) 152364

[startup+120.007 s]
Raw data (loadavg): 0.99 1.00 0.98 2/55 8405
Raw data (/proc/8405/stat): 8405 (pb2sat) R 8404 8405 4059 0 -1 0 64354 0 0 0 11853 141 0 0 25 0 1 0 21524637 192536576 41702 4294967295 134512640 135987407 3221224560 3220790564 134641981 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8405/statm): 47006 41702 364 364 0 46642 0
[pid=8405] vsize: 188024
Current children cumulated CPU time (s) 119.94
Current children cumulated vsize (Kb) 188024

[startup+130.008 s]
Raw data (loadavg): 0.99 1.00 0.98 2/55 8405
Raw data (/proc/8405/stat): 8405 (pb2sat) R 8404 8405 4059 0 -1 0 102658 0 0 0 12767 223 0 0 25 0 1 0 21524637 341745664 57818 4294967295 134512640 135987407 3221224560 3220573904 134887887 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8405/statm): 83434 57818 364 364 0 83070 0
[pid=8405] vsize: 333736
Current children cumulated CPU time (s) 129.9
Current children cumulated vsize (Kb) 333736

[startup+140.008 s]
Raw data (loadavg): 0.99 1.00 0.98 2/55 8405
Raw data (/proc/8405/stat): 8405 (pb2sat) R 8404 8405 4059 0 -1 0 117990 0 0 0 13730 260 0 0 25 0 1 0 21524637 345530368 72897 4294967295 134512640 135987407 3221224560 3220551004 134637002 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8405/statm): 84358 72897 364 364 0 83994 0
[pid=8405] vsize: 337432
Current children cumulated CPU time (s) 139.9
Current children cumulated vsize (Kb) 337432

[startup+150.009 s]
Raw data (loadavg): 0.99 1.00 0.98 2/55 8405
Raw data (/proc/8405/stat): 8405 (pb2sat) R 8404 8405 4059 0 -1 0 159955 0 0 0 14638 347 0 0 25 0 1 0 21524637 474689536 95239 4294967295 134512640 135987407 3221224560 3221063964 135480440 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8405/statm): 115891 95239 364 364 0 115527 0
[pid=8405] vsize: 463564
Current children cumulated CPU time (s) 149.85
Current children cumulated vsize (Kb) 463564

[startup+160.01 s]
Raw data (loadavg): 0.99 1.00 0.98 2/55 8405
Raw data (/proc/8405/stat): 8405 (pb2sat) R 8404 8405 4059 0 -1 0 194814 0 0 0 15565 421 0 0 25 0 1 0 21524637 610529280 105347 4294967295 134512640 135987407 3221224560 3221000624 134887896 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8405/statm): 149055 105347 364 364 0 148691 0
[pid=8405] vsize: 596220
Current children cumulated CPU time (s) 159.86
Current children cumulated vsize (Kb) 596220

[startup+170.009 s]
Raw data (loadavg): 0.99 1.00 0.98 2/55 8405
Raw data (/proc/8405/stat): 8405 (pb2sat) R 8404 8405 4059 0 -1 0 210270 0 0 0 16529 456 0 0 25 0 1 0 21524637 614854656 120549 4294967295 134512640 135987407 3221224560 3220854752 134640450 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8405/statm): 150111 120549 364 364 0 149747 0
[pid=8405] vsize: 600444
Current children cumulated CPU time (s) 169.85
Current children cumulated vsize (Kb) 600444

[startup+180.01 s]
Raw data (loadavg): 0.99 1.00 0.98 2/55 8405
Raw data (/proc/8405/stat): 8405 (pb2sat) R 8404 8405 4059 0 -1 0 225304 0 0 0 17492 493 0 0 25 0 1 0 21524637 618909696 135336 4294967295 134512640 135987407 3221224560 3220858608 134876615 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8405/statm): 151101 135336 364 364 0 150737 0
[pid=8405] vsize: 604404
Current children cumulated CPU time (s) 179.85
Current children cumulated vsize (Kb) 604404

[startup+190.011 s]
Raw data (loadavg): 0.99 1.00 0.98 2/55 8405
Raw data (/proc/8405/stat): 8405 (pb2sat) R 8404 8405 4059 0 -1 0 237473 0 0 0 18464 521 0 0 25 0 1 0 21524637 673431552 147309 4294967295 134512640 135987407 3221224560 3220580272 134637856 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8405/statm): 164412 147309 364 364 0 164048 0
[pid=8405] vsize: 657648
Current children cumulated CPU time (s) 189.85
Current children cumulated vsize (Kb) 657648



Mem limit exceeded: sending SIGTERM then SIGKILL

[startup+194.26 s]
Raw data (loadavg): 0.99 1.00 0.98 1/55 8405
Raw data (/proc/8405/stat): 8405 (pb2sat) T 8404 8405 4059 0 -1 0 244628 0 0 0 18871 538 0 0 25 0 1 0 21524637 963244032 154358 4294967295 134512640 135987407 3221224560 3220892784 135544035 0 0 5 16384 3222434794 0 0 17 0 0 0
Raw data (/proc/8405/statm): 235167 154358 364 364 0 234803 0
[pid=8405] vsize: 940668
Current children cumulated CPU time (s) 194.09
Current children cumulated vsize (Kb) 940668

Sending SIGTERM to -8405
Sleeping 2 seconds
Sending SIGKILL to -8405
One traced child (pid=8405) ended because it received signal 9 (SIGKILL)
All traced children have exited ! Game is over.

Child ended because it received signal 9 (SIGKILL)
Real time (s): 196.584
CPU time (s): 194.508
CPU user time (s): 188.806
CPU system time (s): 5.70213
CPU usage (%): 98.944
Max. virtual memory (cumulated for all children) (Kb): 940668

Verifier Data

ERROR: no interpretation found !