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/miplib/normalized-mps-v2-20-10-egout.opb
MD5SUM9f6abccf92594d7ee18b1409c45097d3
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 471047168
Optimality of the best value was proved YES
Number of terms in the objective function 1615
Biggest coefficient in the objective function 545997717504
Number of bits for the biggest coefficient in the objective function 39
Sum of the numbers in the objective function 15186728411329
Number of bits of the sum of numbers in the objective function 44
Biggest number in a constraint 545997717504
Number of bits of the biggest number in a constraint 39
Biggest sum of numbers in a constraint 15186728411329
Number of bits of the biggest sum of numbers44
Best result obtained on this benchmarkOPTIMUM FOUND
Best CPU time to get the best result obtained on this benchmark1118.41
Number of variables1705
Total number of constraints153
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)55
Number of constraints which are nor clauses,nor cardinality constraints98
Minimum length of a constraint1
Maximum length of a constraint420

Trace number 9963

Launcher Data

LAUNCH ON wulflinc19 THE 2005-09-23 16:17:01 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8711 boxname=wulflinc19 idbench=507 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  9f6abccf92594d7ee18b1409c45097d3  /oldhome/oroussel/tmp/wulflinc19/normalized-mps-v2-20-10-egout.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc19/normalized-mps-v2-20-10-egout.opb
IDLAUNCH: 8711
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.169
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		: 451.169
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:        924540 kB
Buffers:         15484 kB
Cached:          75092 kB
SwapCached:          0 kB
Active:          45884 kB
Inactive:        47584 kB
HighTotal:      131008 kB
HighFree:        52416 kB
LowTotal:       903652 kB
LowFree:        872124 kB
SwapTotal:     2097892 kB
SwapFree:      2097892 kB
Dirty:              52 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:            11144 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-23 16:18:56 (client local time) WITH STATUS 1 IN 114.326 SECONDS
stats: 8711 7 114.326 1

Solver Data

c This solver internally uses Chaff 2004.11.15 Simplified
c running zchaff...
c got solution with objective value: 870235864
c big objective detected
c trying from 0 to 511
c CONFLICT during preprocess 
c trying from 512 to 1023

	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/8352/stat): 8352 (pb2sat) R 8351 8352 4060 0 -1 0 18 0 0 0 0 0 0 0 24 0 1 0 21559938 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/8352/statm): 373 2 364 364 0 9 0
[pid=8352] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc19/normalized-mps-v2-20-10-egout.opb

[startup+10.0023 s]
Raw data (loadavg): 0.93 0.94 0.91 2/55 8352
Raw data (/proc/8352/stat): 8352 (pb2sat) R 8351 8352 4060 0 -1 0 29711 0 0 0 933 63 0 0 25 0 1 0 21559938 96489472 18513 4294967295 134512640 135987407 3221224560 3220956848 134887887 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8352/statm): 23557 18513 364 364 0 23193 0
[pid=8352] vsize: 94228
Current children cumulated CPU time (s) 9.96
Current children cumulated vsize (Kb) 94228

[startup+20.0031 s]
Raw data (loadavg): 0.94 0.94 0.91 2/55 8352
Raw data (/proc/8352/stat): 8352 (pb2sat) R 8351 8352 4060 0 -1 0 59137 0 0 0 1869 124 0 0 25 0 1 0 21559938 191774720 36719 4294967295 134512640 135987407 3221224560 3221130224 134887887 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8352/statm): 46820 36719 364 364 0 46456 0
[pid=8352] vsize: 187280
Current children cumulated CPU time (s) 19.93
Current children cumulated vsize (Kb) 187280

[startup+30.004 s]
Raw data (loadavg): 0.95 0.95 0.91 2/55 8352
Raw data (/proc/8352/stat): 8352 (pb2sat) R 8351 8352 4060 0 -1 0 89536 0 0 0 2802 188 0 0 25 0 1 0 21559938 274534400 57187 4294967295 134512640 135987407 3221224560 3221000160 134636919 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8352/statm): 67025 57187 364 364 0 66661 0
[pid=8352] vsize: 268100
Current children cumulated CPU time (s) 29.9
Current children cumulated vsize (Kb) 268100

[startup+40.0038 s]
Raw data (loadavg): 0.95 0.95 0.91 2/55 8352
Raw data (/proc/8352/stat): 8352 (pb2sat) R 8351 8352 4060 0 -1 0 116283 0 0 0 3742 246 0 0 25 0 1 0 21559938 379641856 71452 4294967295 134512640 135987407 3221224560 3221222756 134562648 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8352/statm): 92686 71452 364 364 0 92322 0
[pid=8352] vsize: 370744
Current children cumulated CPU time (s) 39.88
Current children cumulated vsize (Kb) 370744

[startup+50.0036 s]
Raw data (loadavg): 0.96 0.95 0.91 2/55 8352
Raw data (/proc/8352/stat): 8352 (pb2sat) R 8351 8352 4060 0 -1 0 145584 0 0 0 4664 316 0 0 25 0 1 0 21559938 490811392 98580 4294967295 134512640 135987407 3221224560 3221223376 134802469 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8352/statm): 119827 98580 364 364 0 119463 0
[pid=8352] vsize: 479308
Current children cumulated CPU time (s) 49.8
Current children cumulated vsize (Kb) 479308

[startup+60.0044 s]
Raw data (loadavg): 0.97 0.95 0.91 2/55 8352
Raw data (/proc/8352/stat): 8352 (pb2sat) R 8351 8352 4060 0 -1 0 182758 0 0 0 5590 387 0 0 25 0 1 0 21559938 669917184 134523 4294967295 134512640 135987407 3221224560 3221007056 134892744 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8352/statm): 163554 134523 364 364 0 163190 0
[pid=8352] vsize: 654216
Current children cumulated CPU time (s) 59.77
Current children cumulated vsize (Kb) 654216

[startup+70.0052 s]
Raw data (loadavg): 0.97 0.95 0.91 2/55 8352
Raw data (/proc/8352/stat): 8352 (pb2sat) R 8351 8352 4060 0 -1 0 194831 0 0 0 6559 418 0 0 25 0 1 0 21559938 602804224 127932 4294967295 134512640 135987407 3221224560 3220941648 134636949 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8352/statm): 147169 127932 364 364 0 146805 0
[pid=8352] vsize: 588676
Current children cumulated CPU time (s) 69.77
Current children cumulated vsize (Kb) 588676

[startup+80.006 s]
Raw data (loadavg): 0.98 0.95 0.91 2/55 8352
Raw data (/proc/8352/stat): 8352 (pb2sat) R 8351 8352 4060 0 -1 0 230965 0 0 0 7481 495 0 0 25 0 1 0 21559938 709144576 139277 4294967295 134512640 135987407 3221224560 3221180404 134931037 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8352/statm): 173131 139277 364 364 0 172767 0
[pid=8352] vsize: 692524
Current children cumulated CPU time (s) 79.76
Current children cumulated vsize (Kb) 692524

[startup+90.0059 s]
Raw data (loadavg): 0.98 0.95 0.91 2/55 8352
Raw data (/proc/8352/stat): 8352 (pb2sat) R 8351 8352 4060 0 -1 0 240187 0 0 0 8464 512 0 0 25 0 1 0 21559938 716443648 148333 4294967295 134512640 135987407 3221224560 3221193940 135477879 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8352/statm): 174913 148333 364 364 0 174549 0
[pid=8352] vsize: 699652
Current children cumulated CPU time (s) 89.76
Current children cumulated vsize (Kb) 699652

[startup+100.006 s]
Raw data (loadavg): 0.98 0.95 0.91 2/55 8352
Raw data (/proc/8352/stat): 8352 (pb2sat) R 8351 8352 4060 0 -1 0 256044 0 0 0 9426 547 0 0 25 0 1 0 21559938 744972288 163954 4294967295 134512640 135987407 3221224560 3221165808 134637036 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8352/statm): 181878 163954 364 364 0 181514 0
[pid=8352] vsize: 727512
Current children cumulated CPU time (s) 99.73
Current children cumulated vsize (Kb) 727512

[startup+110.006 s]
Raw data (loadavg): 0.98 0.95 0.91 2/55 8352
Raw data (/proc/8352/stat): 8352 (pb2sat) R 8351 8352 4060 0 -1 0 267762 0 0 0 10398 573 0 0 25 0 1 0 21559938 681721856 154932 4294967295 134512640 135987407 3221224560 3221222596 134882852 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8352/statm): 166436 154932 364 364 0 166072 0
[pid=8352] vsize: 665744
Current children cumulated CPU time (s) 109.71
Current children cumulated vsize (Kb) 665744
One traced child (pid=8352) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 114.612
CPU time (s): 114.326
CPU user time (s): 108.287
CPU system time (s): 6.03908
CPU usage (%): 99.7498
Max. virtual memory (cumulated for all children) (Kb): 727512

Verifier Data

ERROR: no interpretation found !