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-mkc.opb
MD5SUM087a7cd0fdb8b0bf40fe6b459b39a663
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 0
Optimality of the best value was proved NO
Number of terms in the objective function 2946
Biggest coefficient in the objective function 20000
Number of bits for the biggest coefficient in the objective function 15
Sum of the numbers in the objective function 31442101
Number of bits of the sum of numbers in the objective function 25
Biggest number in a constraint 67108864000
Number of bits of the biggest number in a constraint 36
Biggest sum of numbers in a constraint 138201238403
Number of bits of the biggest sum of numbers38
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1231.44
Number of variables5383
Total number of constraints8734
Number of constraints which are clauses2977
Number of constraints which are cardinality constraints (but not clauses)5731
Number of constraints which are nor clauses,nor cardinality constraints26
Minimum length of a constraint1
Maximum length of a constraint2952

Trace number 10094

Launcher Data

LAUNCH ON wulflinc25 THE 2005-09-23 16:57:27 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8850 boxname=wulflinc25 idbench=646 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  087a7cd0fdb8b0bf40fe6b459b39a663  /oldhome/oroussel/tmp/wulflinc25/normalized-mps-v2-20-10-mkc.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc25/normalized-mps-v2-20-10-mkc.opb
IDLAUNCH: 8850
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.002
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		: 451.002
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:        921616 kB
Buffers:         17588 kB
Cached:          75980 kB
SwapCached:          0 kB
Active:          45420 kB
Inactive:        51024 kB
HighTotal:      131008 kB
HighFree:        51156 kB
LowTotal:       903652 kB
LowFree:        870460 kB
SwapTotal:     2097892 kB
SwapFree:      2097892 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6984 kB
Slab:            11028 kB
Committed_AS:    63624 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-23 16:59:17 (client local time) WITH STATUS 1 IN 109.604 SECONDS
stats: 8850 7 109.604 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/9134/stat): 9134 (pb2sat) R 9133 9134 4004 0 -1 0 18 0 0 0 0 0 0 0 24 0 1 0 21767853 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/9134/statm): 373 2 364 364 0 9 0
[pid=9134] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc25/normalized-mps-v2-20-10-mkc.opb

[startup+10.0017 s]
Raw data (loadavg): 0.92 0.94 0.92 2/55 9134
Raw data (/proc/9134/stat): 9134 (pb2sat) R 9133 9134 4004 0 -1 0 29572 0 0 0 931 64 0 0 25 0 1 0 21767853 98222080 18440 4294967295 134512640 135987407 3221224560 3220234156 135482121 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9134/statm): 23980 18440 364 364 0 23616 0
[pid=9134] vsize: 95920
Current children cumulated CPU time (s) 9.95
Current children cumulated vsize (Kb) 95920

[startup+20.0023 s]
Raw data (loadavg): 0.93 0.94 0.92 2/55 9134
Raw data (/proc/9134/stat): 9134 (pb2sat) R 9133 9134 4004 0 -1 0 60836 0 0 0 1859 133 0 0 25 0 1 0 21767853 195956736 38475 4294967295 134512640 135987407 3221224560 3220892876 134893010 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9134/statm): 47841 38475 364 364 0 47477 0
[pid=9134] vsize: 191364
Current children cumulated CPU time (s) 19.92
Current children cumulated vsize (Kb) 191364

[startup+30.0039 s]
Raw data (loadavg): 0.94 0.94 0.92 2/55 9134
Raw data (/proc/9134/stat): 9134 (pb2sat) R 9133 9134 4004 0 -1 0 103440 0 0 0 2769 220 0 0 25 0 1 0 21767853 379793408 71158 4294967295 134512640 135987407 3221224560 3220731488 134887487 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9134/statm): 92723 71158 364 364 0 92359 0
[pid=9134] vsize: 370892
Current children cumulated CPU time (s) 29.89
Current children cumulated vsize (Kb) 370892

[startup+40.0035 s]
Raw data (loadavg): 0.95 0.94 0.92 2/55 9134
Raw data (/proc/9134/stat): 9134 (pb2sat) R 9133 9134 4004 0 -1 0 122116 0 0 0 3723 264 0 0 25 0 1 0 21767853 389640192 77321 4294967295 134512640 135987407 3221224560 3220380496 134931318 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9134/statm): 95127 77321 364 364 0 94763 0
[pid=9134] vsize: 380508
Current children cumulated CPU time (s) 39.87
Current children cumulated vsize (Kb) 380508

[startup+50.0031 s]
Raw data (loadavg): 0.95 0.94 0.92 2/55 9134
Raw data (/proc/9134/stat): 9134 (pb2sat) R 9133 9134 4004 0 -1 0 161223 0 0 0 4644 337 0 0 25 0 1 0 21767853 593100800 115453 4294967295 134512640 135987407 3221224560 3220252496 134856409 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9134/statm): 144800 115453 364 364 0 144436 0
[pid=9134] vsize: 579200
Current children cumulated CPU time (s) 49.81
Current children cumulated vsize (Kb) 579200

[startup+60.0037 s]
Raw data (loadavg): 0.96 0.94 0.92 2/55 9134
Raw data (/proc/9134/stat): 9134 (pb2sat) R 9133 9134 4004 0 -1 0 206882 0 0 0 5546 434 0 0 25 0 1 0 21767853 654778368 117698 4294967295 134512640 135987407 3221224560 3220251072 134892758 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9134/statm): 159858 117698 364 364 0 159494 0
[pid=9134] vsize: 639432
Current children cumulated CPU time (s) 59.8
Current children cumulated vsize (Kb) 639432

[startup+70.0043 s]
Raw data (loadavg): 0.97 0.94 0.92 2/55 9134
Raw data (/proc/9134/stat): 9134 (pb2sat) R 9133 9134 4004 0 -1 0 223109 0 0 0 6508 469 0 0 25 0 1 0 21767853 711176192 133731 4294967295 134512640 135987407 3221224560 3220283264 134887288 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9134/statm): 173627 133731 364 364 0 173263 0
[pid=9134] vsize: 694508
Current children cumulated CPU time (s) 69.77
Current children cumulated vsize (Kb) 694508

[startup+80.0049 s]
Raw data (loadavg): 0.97 0.95 0.92 2/55 9134
Raw data (/proc/9134/stat): 9134 (pb2sat) R 9133 9134 4004 0 -1 0 242914 0 0 0 7464 511 0 0 25 0 1 0 21767853 741724160 153315 4294967295 134512640 135987407 3221224560 3220245808 134556919 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9134/statm): 181085 153315 364 364 0 180721 0
[pid=9134] vsize: 724340
Current children cumulated CPU time (s) 79.75
Current children cumulated vsize (Kb) 724340

[startup+90.0055 s]
Raw data (loadavg): 0.98 0.95 0.92 2/55 9134
Raw data (/proc/9134/stat): 9134 (pb2sat) R 9133 9134 4004 0 -1 0 261866 0 0 0 8422 550 0 0 25 0 1 0 21767853 768622592 172046 4294967295 134512640 135987407 3221224560 3220253472 134855042 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9134/statm): 187652 172046 364 364 0 187288 0
[pid=9134] vsize: 750608
Current children cumulated CPU time (s) 89.72
Current children cumulated vsize (Kb) 750608

[startup+100.005 s]
Raw data (loadavg): 0.98 0.95 0.92 2/55 9134
Raw data (/proc/9134/stat): 9134 (pb2sat) R 9133 9134 4004 0 -1 0 276985 0 0 0 9387 583 0 0 25 0 1 0 21767853 840757248 186985 4294967295 134512640 135987407 3221224560 3220252264 135293361 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9134/statm): 205263 186985 364 364 0 204899 0
[pid=9134] vsize: 821052
Current children cumulated CPU time (s) 99.7
Current children cumulated vsize (Kb) 821052
One traced child (pid=9134) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 109.913
CPU time (s): 109.604
CPU user time (s): 103.289
CPU system time (s): 6.31504
CPU usage (%): 99.7188
Max. virtual memory (cumulated for all children) (Kb): 821052

Verifier Data

ERROR: no interpretation found !