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-glass4.opb
MD5SUM929651d54295ccab2bd7ed98e4ab5229
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 13303876395624
Optimality of the best value was proved NO
Number of terms in the objective function 478
Biggest coefficient in the objective function 536870912000000
Number of bits for the biggest coefficient in the objective function 49
Sum of the numbers in the objective function 1073761158741413
Number of bits of the sum of numbers in the objective function 50
Biggest number in a constraint 71583145981965762560
Number of bits of the biggest number in a constraint 66
Biggest sum of numbers in a constraint 303620978593259257856
Number of bits of the biggest sum of numbers69
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1259.64
Number of variables780
Total number of constraints707
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)338
Number of constraints which are nor clauses,nor cardinality constraints369
Minimum length of a constraint1
Maximum length of a constraint101

Trace number 10009

Launcher Data

LAUNCH ON wulflinc10 THE 2005-09-23 16:31:27 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8772 boxname=wulflinc10 idbench=568 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  929651d54295ccab2bd7ed98e4ab5229  /oldhome/oroussel/tmp/wulflinc10/normalized-mps-v2-20-10-glass4.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc10/normalized-mps-v2-20-10-glass4.opb
IDLAUNCH: 8772
/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:        938076 kB
Buffers:         11632 kB
Cached:          67792 kB
SwapCached:          0 kB
Active:          45080 kB
Inactive:        37272 kB
HighTotal:      131008 kB
HighFree:        59248 kB
LowTotal:       903652 kB
LowFree:        878828 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6976 kB
Slab:             8600 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 16:33:06 (client local time) WITH STATUS 1 IN 98.648 SECONDS
stats: 8772 7 98.648 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/7580/stat): 7580 (pb2sat) R 7579 7580 4061 0 -1 0 18 0 0 0 0 0 0 0 24 0 1 0 21649586 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/7580/statm): 373 2 364 364 0 9 0
[pid=7580] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc10/normalized-mps-v2-20-10-glass4.opb

[startup+10.0025 s]
Raw data (loadavg): 0.86 0.93 0.93 2/55 7580
Raw data (/proc/7580/stat): 7580 (pb2sat) R 7579 7580 4061 0 -1 0 31318 0 0 0 923 73 0 0 25 0 1 0 21649586 99971072 20110 4294967295 134512640 135987407 3221224560 3221188096 134537491 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7580/statm): 24407 20110 364 364 0 24043 0
[pid=7580] vsize: 97628
Current children cumulated CPU time (s) 9.96
Current children cumulated vsize (Kb) 97628

[startup+20.0031 s]
Raw data (loadavg): 0.88 0.94 0.93 2/55 7580
Raw data (/proc/7580/stat): 7580 (pb2sat) R 7579 7580 4061 0 -1 0 62231 0 0 0 1849 144 0 0 25 0 1 0 21649586 197459968 39596 4294967295 134512640 135987407 3221224560 3221189288 135487891 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7580/statm): 48208 39596 364 364 0 47844 0
[pid=7580] vsize: 192832
Current children cumulated CPU time (s) 19.93
Current children cumulated vsize (Kb) 192832

[startup+30.0027 s]
Raw data (loadavg): 0.90 0.94 0.93 2/55 7580
Raw data (/proc/7580/stat): 7580 (pb2sat) R 7579 7580 4061 0 -1 0 102580 0 0 0 2758 231 0 0 25 0 1 0 21649586 382308352 69399 4294967295 134512640 135987407 3221224560 3221188480 134887487 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7580/statm): 93337 69399 364 364 0 92973 0
[pid=7580] vsize: 373348
Current children cumulated CPU time (s) 29.89
Current children cumulated vsize (Kb) 373348

[startup+40.0033 s]
Raw data (loadavg): 0.91 0.94 0.93 2/55 7580
Raw data (/proc/7580/stat): 7580 (pb2sat) R 7579 7580 4061 0 -1 0 123669 0 0 0 3710 277 0 0 25 0 1 0 21649586 391749632 77966 4294967295 134512640 135987407 3221224560 3221189808 134559638 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7580/statm): 95642 77966 364 364 0 95278 0
[pid=7580] vsize: 382568
Current children cumulated CPU time (s) 39.87
Current children cumulated vsize (Kb) 382568

[startup+50.0038 s]
Raw data (loadavg): 0.93 0.94 0.93 2/55 7580
Raw data (/proc/7580/stat): 7580 (pb2sat) R 7579 7580 4061 0 -1 0 168264 0 0 0 4611 370 0 0 25 0 1 0 21649586 533311488 101299 4294967295 134512640 135987407 3221224560 3221187216 134854972 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7580/statm): 130203 101299 364 364 0 129839 0
[pid=7580] vsize: 520812
Current children cumulated CPU time (s) 49.81
Current children cumulated vsize (Kb) 520812

[startup+60.0044 s]
Raw data (loadavg): 0.94 0.94 0.93 2/55 7580
Raw data (/proc/7580/stat): 7580 (pb2sat) R 7579 7580 4061 0 -1 0 189003 0 0 0 5564 415 0 0 25 0 1 0 21649586 763027456 121783 4294967295 134512640 135987407 3221224560 3221188816 134887489 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7580/statm): 186286 121783 364 364 0 185922 0
[pid=7580] vsize: 745144
Current children cumulated CPU time (s) 59.79
Current children cumulated vsize (Kb) 745144

[startup+70.0049 s]
Raw data (loadavg): 0.95 0.94 0.93 2/55 7580
Raw data (/proc/7580/stat): 7580 (pb2sat) R 7579 7580 4061 0 -1 0 229135 0 0 0 6467 510 0 0 25 0 1 0 21649586 686960640 137117 4294967295 134512640 135987407 3221224560 3221188120 134789773 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7580/statm): 167715 137117 364 364 0 167351 0
[pid=7580] vsize: 670860
Current children cumulated CPU time (s) 69.77
Current children cumulated vsize (Kb) 670860

[startup+80.0045 s]
Raw data (loadavg): 0.95 0.94 0.93 2/55 7580
Raw data (/proc/7580/stat): 7580 (pb2sat) R 7579 7580 4061 0 -1 0 245414 0 0 0 7426 547 0 0 25 0 1 0 21649586 744304640 153183 4294967295 134512640 135987407 3221224560 3221188892 135484783 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7580/statm): 181715 153183 364 364 0 181351 0
[pid=7580] vsize: 726860
Current children cumulated CPU time (s) 79.73
Current children cumulated vsize (Kb) 726860

[startup+90.0051 s]
Raw data (loadavg): 0.96 0.95 0.93 2/55 7580
Raw data (/proc/7580/stat): 7580 (pb2sat) R 7579 7580 4061 0 -1 0 264837 0 0 0 8378 593 0 0 25 0 1 0 21649586 772689920 172351 4294967295 134512640 135987407 3221224560 3221189104 134537503 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7580/statm): 188645 172351 364 364 0 188281 0
[pid=7580] vsize: 754580
Current children cumulated CPU time (s) 89.71
Current children cumulated vsize (Kb) 754580
One traced child (pid=7580) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 98.945
CPU time (s): 98.648
CPU user time (s): 92.256
CPU system time (s): 6.39203
CPU usage (%): 99.6998
Max. virtual memory (cumulated for all children) (Kb): 754580

Verifier Data

ERROR: no interpretation found !