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/ftp.netlib.org/lp/data/normalized-mps-v2-20-10-lotfi.opb
MD5SUMd0cc302a544eb359eec19c9f7d39cc8a
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
Satisfiable
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of terms in the objective function 240
Biggest coefficient in the objective function 536870912
Number of bits for the biggest coefficient in the objective function 30
Sum of the numbers in the objective function 8589934584
Number of bits of the sum of numbers in the objective function 33
Biggest number in a constraint 5368709120000000000
Number of bits of the biggest number in a constraint 63
Biggest sum of numbers in a constraint 40952512476384968704
Number of bits of the biggest sum of numbers66
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Number of variables9240
Total number of constraints153
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 constraints153
Minimum length of a constraint30
Maximum length of a constraint3990

Trace number 9895

Launcher Data

LAUNCH ON wulflinc10 THE 2005-09-23 16:07:09 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8645 boxname=wulflinc10 idbench=441 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  d0cc302a544eb359eec19c9f7d39cc8a  /oldhome/oroussel/tmp/wulflinc10/normalized-mps-v2-20-10-lotfi.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc10/normalized-mps-v2-20-10-lotfi.opb
IDLAUNCH: 8645
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.193
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		: 451.193
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:        942024 kB
Buffers:         11504 kB
Cached:          63908 kB
SwapCached:          0 kB
Active:          45012 kB
Inactive:        33360 kB
HighTotal:      131008 kB
HighFree:        63084 kB
LowTotal:       903652 kB
LowFree:        878940 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6976 kB
Slab:             8640 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 16:08:54 (client local time) WITH STATUS 1 IN 103.921 SECONDS
stats: 8645 7 103.921 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/7245/stat): 7245 (pb2sat) R 7244 7245 4061 0 -1 0 18 0 0 0 0 0 0 0 24 0 1 0 21503790 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/7245/statm): 373 2 364 364 0 9 0
[pid=7245] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc10/normalized-mps-v2-20-10-lotfi.opb

[startup+10.0017 s]
Raw data (loadavg): 0.87 0.95 0.95 2/55 7245
Raw data (/proc/7245/stat): 7245 (pb2sat) R 7244 7245 4061 0 -1 0 29852 0 0 0 929 67 0 0 25 0 1 0 21503790 90689536 18694 4294967295 134512640 135987407 3221224560 3220087004 135480496 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7245/statm): 22141 18695 364 364 0 21777 0
[pid=7245] vsize: 88564
Current children cumulated CPU time (s) 9.96
Current children cumulated vsize (Kb) 88564

[startup+20.0022 s]
Raw data (loadavg): 0.89 0.96 0.95 2/55 7245
Raw data (/proc/7245/stat): 7245 (pb2sat) R 7244 7245 4061 0 -1 0 61813 0 0 0 1856 137 0 0 25 0 1 0 21503790 188542976 39431 4294967295 134512640 135987407 3221224560 3219992096 134856505 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7245/statm): 46031 39431 364 364 0 45667 0
[pid=7245] vsize: 184124
Current children cumulated CPU time (s) 19.93
Current children cumulated vsize (Kb) 184124

[startup+30.0018 s]
Raw data (loadavg): 0.91 0.96 0.95 2/55 7245
Raw data (/proc/7245/stat): 7245 (pb2sat) R 7244 7245 4061 0 -1 0 105031 0 0 0 2763 227 0 0 25 0 1 0 21503790 321499136 60449 4294967295 134512640 135987407 3221224560 3219902828 134636959 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7245/statm): 78491 60449 364 364 0 78127 0
[pid=7245] vsize: 313964
Current children cumulated CPU time (s) 29.9
Current children cumulated vsize (Kb) 313964

[startup+40.0024 s]
Raw data (loadavg): 0.92 0.96 0.95 2/55 7245
Raw data (/proc/7245/stat): 7245 (pb2sat) R 7244 7245 4061 0 -1 0 123760 0 0 0 3719 269 0 0 25 0 1 0 21503790 379924480 78955 4294967295 134512640 135987407 3221224560 3220042016 134887887 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7245/statm): 92755 78955 364 364 0 92391 0
[pid=7245] vsize: 371020
Current children cumulated CPU time (s) 39.88
Current children cumulated vsize (Kb) 371020

[startup+50.0029 s]
Raw data (loadavg): 0.93 0.96 0.95 2/55 7245
Raw data (/proc/7245/stat): 7245 (pb2sat) R 7244 7245 4061 0 -1 0 168738 0 0 0 4628 355 0 0 25 0 1 0 21503790 591065088 122749 4294967295 134512640 135987407 3221224560 3219970928 134856587 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7245/statm): 144303 122751 364 364 0 143939 0
[pid=7245] vsize: 577212
Current children cumulated CPU time (s) 49.83
Current children cumulated vsize (Kb) 577212

[startup+60.0025 s]
Raw data (loadavg): 0.94 0.96 0.95 2/55 7245
Raw data (/proc/7245/stat): 7245 (pb2sat) R 7244 7245 4061 0 -1 0 210031 0 0 0 5537 444 0 0 25 0 1 0 21503790 645025792 120829 4294967295 134512640 135987407 3221224560 3220057420 135482121 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7245/statm): 157477 120830 364 364 0 157113 0
[pid=7245] vsize: 629908
Current children cumulated CPU time (s) 59.81
Current children cumulated vsize (Kb) 629908

[startup+70.0031 s]
Raw data (loadavg): 0.95 0.96 0.95 2/55 7245
Raw data (/proc/7245/stat): 7245 (pb2sat) R 7244 7245 4061 0 -1 0 227074 0 0 0 6503 476 0 0 25 0 1 0 21503790 701018112 137669 4294967295 134512640 135987407 3221224560 3220003040 134887887 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7245/statm): 171147 137669 364 364 0 170783 0
[pid=7245] vsize: 684588
Current children cumulated CPU time (s) 69.79
Current children cumulated vsize (Kb) 684588

[startup+80.0036 s]
Raw data (loadavg): 0.96 0.96 0.95 2/55 7245
Raw data (/proc/7245/stat): 7245 (pb2sat) R 7244 7245 4061 0 -1 0 246606 0 0 0 7465 513 0 0 25 0 1 0 21503790 726294528 156966 4294967295 134512640 135987407 3221224560 3219944524 135482121 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7245/statm): 177318 156966 364 364 0 176954 0
[pid=7245] vsize: 709272
Current children cumulated CPU time (s) 79.78
Current children cumulated vsize (Kb) 709272

[startup+90.0042 s]
Raw data (loadavg): 0.96 0.96 0.95 2/55 7245
Raw data (/proc/7245/stat): 7245 (pb2sat) R 7244 7245 4061 0 -1 0 262245 0 0 0 8428 548 0 0 25 0 1 0 21503790 797036544 172417 4294967295 134512640 135987407 3221224560 3219957824 134856387 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7245/statm): 194589 172417 364 364 0 194225 0
[pid=7245] vsize: 778356
Current children cumulated CPU time (s) 89.76
Current children cumulated vsize (Kb) 778356

[startup+100.004 s]
Raw data (loadavg): 0.97 0.96 0.95 2/55 7245
Raw data (/proc/7245/stat): 7245 (pb2sat) R 7244 7245 4061 0 -1 0 280391 0 0 0 9387 587 0 0 25 0 1 0 21503790 822280192 190348 4294967295 134512640 135987407 3221224560 3221222988 134563041 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7245/statm): 200752 190348 364 364 0 200388 0
[pid=7245] vsize: 803008
Current children cumulated CPU time (s) 99.74
Current children cumulated vsize (Kb) 803008
One traced child (pid=7245) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 104.184
CPU time (s): 103.921
CPU user time (s): 97.6532
CPU system time (s): 6.26805
CPU usage (%): 99.7474
Max. virtual memory (cumulated for all children) (Kb): 803008

Verifier Data

ERROR: no interpretation found !