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/MIPLIB/miplib3/normalized-mps-v2-20-10-enigma.opb
MD5SUM438e2455c0b7b4efdea6a7e48ef2555a
Bench Categoryoptimization, medium integers (OPTMEDINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 0
Optimality of the best value was proved YES
Number of terms in the objective function 9
Biggest coefficient in the objective function 9
Number of bits for the biggest coefficient in the objective function 4
Sum of the numbers in the objective function 45
Number of bits of the sum of numbers in the objective function 6
Biggest number in a constraint 900207
Number of bits of the biggest number in a constraint 20
Biggest sum of numbers in a constraint 9508275
Number of bits of the biggest sum of numbers24
Best result obtained on this benchmarkOPTIMUM FOUND
Best CPU time to get the best result obtained on this benchmark2.20366
Number of variables100
Total number of constraints121
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)120
Number of constraints which are nor clauses,nor cardinality constraints1
Minimum length of a constraint1
Maximum length of a constraint90

Trace number 10119

Launcher Data

LAUNCH ON wulflinc18 THE 2005-09-23 17:03:00 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8877 boxname=wulflinc18 idbench=673 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  438e2455c0b7b4efdea6a7e48ef2555a  /oldhome/oroussel/tmp/wulflinc18/normalized-mps-v2-20-10-enigma.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc18/normalized-mps-v2-20-10-enigma.opb
IDLAUNCH: 8877
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.061
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	: 890.88

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.061
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	: 901.12

/proc/meminfo:
MemTotal:      1034660 kB
MemFree:        928532 kB
Buffers:         15088 kB
Cached:          71544 kB
SwapCached:          0 kB
Active:          45228 kB
Inactive:        44280 kB
HighTotal:      131008 kB
HighFree:        55216 kB
LowTotal:       903652 kB
LowFree:        873316 kB
SwapTotal:     2097892 kB
SwapFree:      2097892 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:            10992 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-23 17:04:51 (client local time) WITH STATUS 1 IN 109.959 SECONDS
stats: 8877 7 109.959 1

Solver Data

c This solver internally uses Chaff 2004.11.15 Simplified

	Unexpected exception :
	St9bad_alloc

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/7963/stat): 7963 (pb2sat) R 7962 7963 4060 0 -1 0 18 0 0 0 0 0 0 0 24 0 1 0 21837387 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/7963/statm): 373 2 364 364 0 9 0
[pid=7963] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc18/normalized-mps-v2-20-10-enigma.opb

[startup+10.0021 s]
Raw data (loadavg): 0.92 0.94 0.95 2/55 7963
Raw data (/proc/7963/stat): 7963 (pb2sat) R 7962 7963 4060 0 -1 0 31264 0 0 0 930 66 0 0 25 0 1 0 21837387 98422784 20127 4294967295 134512640 135987407 3221224560 3221205548 134637035 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7963/statm): 24029 20127 364 364 0 23665 0
[pid=7963] vsize: 96116
Current children cumulated CPU time (s) 9.96
Current children cumulated vsize (Kb) 96116

[startup+20.003 s]
Raw data (loadavg): 0.93 0.95 0.95 2/55 7963
Raw data (/proc/7963/stat): 7963 (pb2sat) R 7962 7963 4060 0 -1 0 61825 0 0 0 1866 127 0 0 25 0 1 0 21837387 193843200 39475 4294967295 134512640 135987407 3221224560 3221207356 135499903 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7963/statm): 47325 39475 364 364 0 46961 0
[pid=7963] vsize: 189300
Current children cumulated CPU time (s) 19.93
Current children cumulated vsize (Kb) 189300

[startup+30.0029 s]
Raw data (loadavg): 0.94 0.95 0.95 2/55 7963
Raw data (/proc/7963/stat): 7963 (pb2sat) R 7962 7963 4060 0 -1 0 104656 0 0 0 2776 213 0 0 25 0 1 0 21837387 326848512 60105 4294967295 134512640 135987407 3221224560 3221207916 134636940 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7963/statm): 79797 60105 364 364 0 79433 0
[pid=7963] vsize: 319188
Current children cumulated CPU time (s) 29.89
Current children cumulated vsize (Kb) 319188

[startup+40.0039 s]
Raw data (loadavg): 0.95 0.95 0.95 2/55 7963
Raw data (/proc/7963/stat): 7963 (pb2sat) R 7962 7963 4060 0 -1 0 122750 0 0 0 3738 250 0 0 25 0 1 0 21837387 385839104 77979 4294967295 134512640 135987407 3221224560 3221208208 134537552 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7963/statm): 94199 77979 364 364 0 93835 0
[pid=7963] vsize: 376796
Current children cumulated CPU time (s) 39.88
Current children cumulated vsize (Kb) 376796

[startup+50.0048 s]
Raw data (loadavg): 0.96 0.95 0.95 2/55 7963
Raw data (/proc/7963/stat): 7963 (pb2sat) R 7962 7963 4060 0 -1 0 150355 0 0 0 4685 300 0 0 25 0 1 0 21837387 569315328 105026 4294967295 134512640 135987407 3221224560 3221210396 135500006 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7963/statm): 138993 105026 364 364 0 138629 0
[pid=7963] vsize: 555972
Current children cumulated CPU time (s) 49.85
Current children cumulated vsize (Kb) 555972

[startup+60.0057 s]
Raw data (loadavg): 0.96 0.95 0.95 2/55 7963
Raw data (/proc/7963/stat): 7963 (pb2sat) R 7962 7963 4060 0 -1 0 203068 0 0 0 5572 410 0 0 25 0 1 0 21837387 643616768 113958 4294967295 134512640 135987407 3221224560 3221198744 134828133 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7963/statm): 157133 113958 364 364 0 156769 0
[pid=7963] vsize: 628532
Current children cumulated CPU time (s) 59.82
Current children cumulated vsize (Kb) 628532

[startup+70.0066 s]
Raw data (loadavg): 0.97 0.95 0.95 2/55 7963
Raw data (/proc/7963/stat): 7963 (pb2sat) R 7962 7963 4060 0 -1 0 214428 0 0 0 6548 434 0 0 25 0 1 0 21837387 677597184 125114 4294967295 134512640 135987407 3221224560 3221206876 134637002 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7963/statm): 165429 125114 364 364 0 165065 0
[pid=7963] vsize: 661716
Current children cumulated CPU time (s) 69.82
Current children cumulated vsize (Kb) 661716

[startup+80.0066 s]
Raw data (loadavg): 0.97 0.95 0.95 2/55 7963
Raw data (/proc/7963/stat): 7963 (pb2sat) R 7962 7963 4060 0 -1 0 226710 0 0 0 7524 457 0 0 25 0 1 0 21837387 677597184 137172 4294967295 134512640 135987407 3221224560 3221207436 135481582 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7963/statm): 165429 137172 364 364 0 165065 0
[pid=7963] vsize: 661716
Current children cumulated CPU time (s) 79.81
Current children cumulated vsize (Kb) 661716

[startup+90.0075 s]
Raw data (loadavg): 0.98 0.95 0.95 2/55 7963
Raw data (/proc/7963/stat): 7963 (pb2sat) R 7962 7963 4060 0 -1 0 239913 0 0 0 8499 483 0 0 25 0 1 0 21837387 681246720 150148 4294967295 134512640 135987407 3221224560 3221211632 134636939 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7963/statm): 166320 150148 364 364 0 165956 0
[pid=7963] vsize: 665280
Current children cumulated CPU time (s) 89.82
Current children cumulated vsize (Kb) 665280

[startup+100.007 s]
Raw data (loadavg): 0.98 0.95 0.95 2/55 7963
Raw data (/proc/7963/stat): 7963 (pb2sat) R 7962 7963 4060 0 -1 0 251038 0 0 0 9477 505 0 0 25 0 1 0 21837387 737390592 161094 4294967295 134512640 135987407 3221224560 3221211548 134635398 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7963/statm): 180027 161094 364 364 0 179663 0
[pid=7963] vsize: 720108
Current children cumulated CPU time (s) 99.82
Current children cumulated vsize (Kb) 720108

[startup+110.009 s]
Raw data (loadavg): 0.98 0.95 0.95 2/55 7963
Raw data (/proc/7963/stat): 7963 (pb2sat) R 7962 7963 4060 0 -1 0 257765 0 0 0 10444 538 0 0 25 0 1 0 21837387 240898048 58263 4294967295 134512640 135987407 3221224560 3221223416 135544177 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7963/statm): 58813 58263 364 364 0 58449 0
[pid=7963] vsize: 235252
Current children cumulated CPU time (s) 109.82
Current children cumulated vsize (Kb) 235252
One traced child (pid=7963) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 110.151
CPU time (s): 109.959
CPU user time (s): 104.448
CPU system time (s): 5.51116
CPU usage (%): 99.826
Max. virtual memory (cumulated for all children) (Kb): 720108

Verifier Data

ERROR: no interpretation found !