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-v2-13-7/ftp.netlib.org/lp/data/normalized-mps-v2-13-7-gfrd-pnc.opb
MD5SUMf72ff83237646045e70c745d89efd15d
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 18728
Biggest coefficient in the objective function 1050225536
Number of bits for the biggest coefficient in the objective function 30
Sum of the numbers in the objective function 456113132475
Number of bits of the sum of numbers in the objective function 39
Biggest number in a constraint 1050225536
Number of bits of the biggest number in a constraint 30
Biggest sum of numbers in a constraint 456113132475
Number of bits of the biggest sum of numbers39
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.201969
Number of variables18774
Total number of constraints874
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 constraints874
Minimum length of a constraint8
Maximum length of a constraint168

Trace number 10274

Launcher Data

LAUNCH ON wulflinc2 THE 2005-09-23 17:45:26 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=9022 boxname=wulflinc2 idbench=818 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  f72ff83237646045e70c745d89efd15d  /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-13-7-gfrd-pnc.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-13-7-gfrd-pnc.opb
IDLAUNCH: 9022
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.261
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	: 2
cpu MHz		: 451.261
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:        894424 kB
Buffers:         17144 kB
Cached:         103284 kB
SwapCached:          0 kB
Active:          47136 kB
Inactive:        76216 kB
HighTotal:      131008 kB
HighFree:        31612 kB
LowTotal:       903652 kB
LowFree:        862812 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:            11324 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 17:47:12 (client local time) WITH STATUS 1 IN 105.963 SECONDS
stats: 9022 7 105.963 1

Solver Data

c This solver internally uses Chaff 2004.11.15 Simplified

	Unexpected exception :
	trivial falsity

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/10227/stat): 10227 (pb2sat) R 10226 10227 4070 0 -1 0 18 0 0 0 0 0 0 0 19 0 1 0 22110840 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/10227/statm): 373 2 364 364 0 9 0
[pid=10227] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-13-7-gfrd-pnc.opb

[startup+10.001 s]
Raw data (loadavg): 0.93 0.95 0.96 2/55 10227
Raw data (/proc/10227/stat): 10227 (pb2sat) R 10226 10227 4070 0 -1 0 16347 0 0 0 959 37 0 0 25 0 1 0 22110840 53170176 10696 4294967295 134512640 135987407 3221224560 3221210032 134854956 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10227/statm): 12981 10696 364 364 0 12617 0
[pid=10227] vsize: 51924
Current children cumulated CPU time (s) 9.96
Current children cumulated vsize (Kb) 51924

[startup+20.0017 s]
Raw data (loadavg): 0.94 0.95 0.96 2/55 10227
Raw data (/proc/10227/stat): 10227 (pb2sat) R 10226 10227 4070 0 -1 0 52993 0 0 0 1880 114 0 0 25 0 1 0 22110840 167731200 30626 4294967295 134512640 135987407 3221224560 3221215112 134865972 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10227/statm): 40950 30626 364 364 0 40586 0
[pid=10227] vsize: 163800
Current children cumulated CPU time (s) 19.94
Current children cumulated vsize (Kb) 163800

[startup+30.0025 s]
Raw data (loadavg): 0.95 0.95 0.96 2/55 10227
Raw data (/proc/10227/stat): 10227 (pb2sat) R 10226 10227 4070 0 -1 0 78566 0 0 0 2824 167 0 0 25 0 1 0 22110840 290013184 55614 4294967295 134512640 135987407 3221224560 3221208384 134893296 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10227/statm): 70804 55614 364 364 0 70440 0
[pid=10227] vsize: 283216
Current children cumulated CPU time (s) 29.91
Current children cumulated vsize (Kb) 283216

[startup+40.0032 s]
Raw data (loadavg): 0.95 0.95 0.96 2/55 10227
Raw data (/proc/10227/stat): 10227 (pb2sat) R 10226 10227 4070 0 -1 0 105009 0 0 0 3769 221 0 0 25 0 1 0 22110840 347287552 60242 4294967295 134512640 135987407 3221224560 3221209940 135479887 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10227/statm): 84787 60242 364 364 0 84423 0
[pid=10227] vsize: 339148
Current children cumulated CPU time (s) 39.9
Current children cumulated vsize (Kb) 339148

[startup+50.0039 s]
Raw data (loadavg): 0.96 0.95 0.96 2/55 10227
Raw data (/proc/10227/stat): 10227 (pb2sat) R 10226 10227 4070 0 -1 0 118031 0 0 0 4743 247 0 0 25 0 1 0 22110840 352829440 73041 4294967295 134512640 135987407 3221224560 3221208144 135486786 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10227/statm): 86140 73041 364 364 0 85776 0
[pid=10227] vsize: 344560
Current children cumulated CPU time (s) 49.9
Current children cumulated vsize (Kb) 344560

[startup+60.0036 s]
Raw data (loadavg): 0.97 0.95 0.96 2/55 10227
Raw data (/proc/10227/stat): 10227 (pb2sat) R 10226 10227 4070 0 -1 0 158289 0 0 0 5661 325 0 0 25 0 1 0 22110840 480542720 93651 4294967295 134512640 135987407 3221224560 3221211216 134802755 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10227/statm): 117320 93651 364 364 0 116956 0
[pid=10227] vsize: 469280
Current children cumulated CPU time (s) 59.86
Current children cumulated vsize (Kb) 469280

[startup+70.0043 s]
Raw data (loadavg): 0.97 0.96 0.96 2/55 10227
Raw data (/proc/10227/stat): 10227 (pb2sat) R 10226 10227 4070 0 -1 0 194549 0 0 0 6584 402 0 0 25 0 1 0 22110840 586539008 105138 4294967295 134512640 135987407 3221224560 3221210144 134878604 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10227/statm): 143198 105138 364 364 0 142834 0
[pid=10227] vsize: 572792
Current children cumulated CPU time (s) 69.86
Current children cumulated vsize (Kb) 572792

[startup+80.005 s]
Raw data (loadavg): 0.98 0.96 0.96 2/55 10227
Raw data (/proc/10227/stat): 10227 (pb2sat) R 10226 10227 4070 0 -1 0 204650 0 0 0 7564 422 0 0 25 0 1 0 22110840 620879872 115047 4294967295 134512640 135987407 3221224560 3221209504 134877974 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10227/statm): 151582 115047 364 364 0 151218 0
[pid=10227] vsize: 606328
Current children cumulated CPU time (s) 79.86
Current children cumulated vsize (Kb) 606328

[startup+90.0057 s]
Raw data (loadavg): 0.98 0.96 0.96 2/55 10227
Raw data (/proc/10227/stat): 10227 (pb2sat) R 10226 10227 4070 0 -1 0 218460 0 0 0 8535 450 0 0 25 0 1 0 22110840 627965952 128627 4294967295 134512640 135987407 3221224560 3221210620 134558456 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10227/statm): 153312 128627 364 364 0 152948 0
[pid=10227] vsize: 613248
Current children cumulated CPU time (s) 89.85
Current children cumulated vsize (Kb) 613248

[startup+100.005 s]
Raw data (loadavg): 0.98 0.96 0.96 2/55 10227
Raw data (/proc/10227/stat): 10227 (pb2sat) R 10226 10227 4070 0 -1 0 231312 0 0 0 9508 477 0 0 25 0 1 0 22110840 629026816 141242 4294967295 134512640 135987407 3221224560 3221200160 134639896 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10227/statm): 153571 141242 364 364 0 153207 0
[pid=10227] vsize: 614284
Current children cumulated CPU time (s) 99.85
Current children cumulated vsize (Kb) 614284
One traced child (pid=10227) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 106.119
CPU time (s): 105.963
CPU user time (s): 100.819
CPU system time (s): 5.14422
CPU usage (%): 99.8527
Max. virtual memory (cumulated for all children) (Kb): 614284

Verifier Data

ERROR: no interpretation found !