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/miplib2003/normalized-mps-v2-20-10-arki001.opb
MD5SUMde7a38ae8a44ed9d515fc386211a643d
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 31
Biggest coefficient in the objective function 1073741824
Number of bits for the biggest coefficient in the objective function 31
Sum of the numbers in the objective function 2147483647
Number of bits of the sum of numbers in the objective function 31
Biggest number in a constraint 2386602666496000
Number of bits of the biggest number in a constraint 52
Biggest sum of numbers in a constraint 5223634990318712
Number of bits of the biggest sum of numbers53
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark72.492
Number of variables8268
Total number of constraints2018
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)436
Number of constraints which are nor clauses,nor cardinality constraints1582
Minimum length of a constraint1
Maximum length of a constraint8249

Trace number 10003

Launcher Data

LAUNCH ON wulflinc20 THE 2005-09-23 16:28:24 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8763 boxname=wulflinc20 idbench=559 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  de7a38ae8a44ed9d515fc386211a643d  /oldhome/oroussel/tmp/wulflinc20/normalized-mps-v2-20-10-arki001.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc20/normalized-mps-v2-20-10-arki001.opb
IDLAUNCH: 8763
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.012
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		: 451.012
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:        933740 kB
Buffers:         11780 kB
Cached:          71792 kB
SwapCached:          0 kB
Active:          48396 kB
Inactive:        38068 kB
HighTotal:      131008 kB
HighFree:        54768 kB
LowTotal:       903652 kB
LowFree:        878972 kB
SwapTotal:     2097892 kB
SwapFree:      2097892 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:             8792 kB
Committed_AS:    63632 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-23 16:30:00 (client local time) WITH STATUS 1 IN 95.9504 SECONDS
stats: 8763 7 95.9504 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/7964/stat): 7964 (pb2sat) R 7963 7964 4059 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 21628400 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/7964/statm): 373 2 364 364 0 9 0
[pid=7964] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc20/normalized-mps-v2-20-10-arki001.opb

[startup+10.0021 s]
Raw data (loadavg): 0.83 0.90 0.92 2/55 7964
Raw data (/proc/7964/stat): 7964 (pb2sat) R 7963 7964 4059 0 -1 0 30937 0 0 0 929 67 0 0 25 0 1 0 21628400 99426304 19771 4294967295 134512640 135987407 3221224560 3221143072 134537491 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7964/statm): 24274 19771 364 364 0 23910 0
[pid=7964] vsize: 97096
Current children cumulated CPU time (s) 9.96
Current children cumulated vsize (Kb) 97096

[startup+20.0028 s]
Raw data (loadavg): 0.86 0.91 0.92 2/55 7964
Raw data (/proc/7964/stat): 7964 (pb2sat) R 7963 7964 4059 0 -1 0 61887 0 0 0 1862 131 0 0 25 0 1 0 21628400 196378624 39476 4294967295 134512640 135987407 3221224560 3221145756 134669188 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7964/statm): 47944 39476 364 364 0 47580 0
[pid=7964] vsize: 191776
Current children cumulated CPU time (s) 19.93
Current children cumulated vsize (Kb) 191776

[startup+30.0035 s]
Raw data (loadavg): 0.88 0.91 0.92 2/55 7964
Raw data (/proc/7964/stat): 7964 (pb2sat) R 7963 7964 4059 0 -1 0 99219 0 0 0 2790 199 0 0 25 0 1 0 21628400 381501440 66500 4294967295 134512640 135987407 3221224560 3221141104 134887487 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7964/statm): 93140 66504 364 364 0 92776 0
[pid=7964] vsize: 372560
Current children cumulated CPU time (s) 29.89
Current children cumulated vsize (Kb) 372560

[startup+40.0032 s]
Raw data (loadavg): 0.90 0.91 0.92 2/55 7964
Raw data (/proc/7964/stat): 7964 (pb2sat) R 7963 7964 4059 0 -1 0 123625 0 0 0 3741 246 0 0 25 0 1 0 21628400 390807552 78375 4294967295 134512640 135987407 3221224560 3221141724 135482121 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7964/statm): 95412 78376 364 364 0 95048 0
[pid=7964] vsize: 381648
Current children cumulated CPU time (s) 39.87
Current children cumulated vsize (Kb) 381648

[startup+50.0039 s]
Raw data (loadavg): 0.91 0.91 0.92 2/55 7964
Raw data (/proc/7964/stat): 7964 (pb2sat) R 7963 7964 4059 0 -1 0 168925 0 0 0 4646 336 0 0 25 0 1 0 21628400 531881984 101802 4294967295 134512640 135987407 3221224560 3221142448 134887887 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7964/statm): 129854 101802 364 364 0 129490 0
[pid=7964] vsize: 519416
Current children cumulated CPU time (s) 49.82
Current children cumulated vsize (Kb) 519416

[startup+60.0037 s]
Raw data (loadavg): 0.93 0.92 0.92 2/55 7964
Raw data (/proc/7964/stat): 7964 (pb2sat) R 7963 7964 4059 0 -1 0 194169 0 0 0 5596 383 0 0 25 0 1 0 21628400 761327616 126784 4294967295 134512640 135987407 3221224560 3221140096 134887487 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7964/statm): 185871 126788 364 364 0 185507 0
[pid=7964] vsize: 743484
Current children cumulated CPU time (s) 59.79
Current children cumulated vsize (Kb) 743484

[startup+70.0044 s]
Raw data (loadavg): 0.94 0.92 0.92 2/55 7964
Raw data (/proc/7964/stat): 7964 (pb2sat) R 7963 7964 4059 0 -1 0 230447 0 0 0 6520 457 0 0 25 0 1 0 21628400 686071808 138249 4294967295 134512640 135987407 3221224560 3221140384 134537491 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7964/statm): 167498 138249 364 364 0 167134 0
[pid=7964] vsize: 669992
Current children cumulated CPU time (s) 69.77
Current children cumulated vsize (Kb) 669992

[startup+80.0052 s]
Raw data (loadavg): 0.95 0.92 0.92 2/55 7964
Raw data (/proc/7964/stat): 7964 (pb2sat) R 7963 7964 4059 0 -1 0 246764 0 0 0 7484 491 0 0 25 0 1 0 21628400 743280640 154346 4294967295 134512640 135987407 3221224560 3221141692 134637002 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7964/statm): 181465 154346 364 364 0 181101 0
[pid=7964] vsize: 725860
Current children cumulated CPU time (s) 79.75
Current children cumulated vsize (Kb) 725860

[startup+90.0049 s]
Raw data (loadavg): 0.95 0.92 0.92 2/55 7964
Raw data (/proc/7964/stat): 7964 (pb2sat) R 7963 7964 4059 0 -1 0 264867 0 0 0 8448 525 0 0 25 0 1 0 21628400 775020544 170650 4294967295 134512640 135987407 3221224560 3221222948 135479922 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7964/statm): 189214 170650 364 364 0 188850 0
[pid=7964] vsize: 756856
Current children cumulated CPU time (s) 89.73
Current children cumulated vsize (Kb) 756856
One traced child (pid=7964) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 96.2284
CPU time (s): 95.9504
CPU user time (s): 90.3403
CPU system time (s): 5.61015
CPU usage (%): 99.7111
Max. virtual memory (cumulated for all children) (Kb): 756856

Verifier Data

ERROR: no interpretation found !