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).
  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

Namenormalized-opb/mps-v2-20-10/MIPLIB/miplib3/normalized-mps-v2-20-10-bell3a.opb
MD5SUM26dd13d463ba85c3a30386739f6ae61e
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 2147483647
Optimality of the best value was proved NO
Number of terms in the objective function 1716
Biggest coefficient in the objective function 5134096531456000
Number of bits for the biggest coefficient in the objective function 53
Sum of the numbers in the objective function 216401520151185266
Number of bits of the sum of numbers in the objective function 58
Biggest number in a constraint 5134096531456000
Number of bits of the biggest number in a constraint 53
Biggest sum of numbers in a constraint 216401520151185266
Number of bits of the biggest sum of numbers58
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1243.96
Number of variables2219
Total number of constraints194
Number of constraints which are clauses22
Number of constraints which are cardinality constraints (but not clauses)39
Number of constraints which are nor clauses,nor cardinality constraints133
Minimum length of a constraint1
Maximum length of a constraint191

Trace number 35237 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc21 THE 2005-05-28 12:31:43 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24545 boxname=wulflinc21 idbench=1017 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  26dd13d463ba85c3a30386739f6ae61e  /oldhome/oroussel/tmp/wulflinc21/normalized-mps-v2-20-10-bell3a.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc21/normalized-mps-v2-20-10-bell3a.opb
IDLAUNCH: 24545
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.161
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	: 890.88

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.161
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:        848144 kB
Buffers:         34564 kB
Cached:         128904 kB
SwapCached:        956 kB
Active:          53888 kB
Inactive:       111808 kB
HighTotal:      131008 kB
HighFree:          756 kB
LowTotal:       903652 kB
LowFree:        847388 kB
SwapTotal:     2097892 kB
SwapFree:      2096012 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5136 kB
Slab:            15316 kB
Committed_AS:    63912 kB
PageTables:        332 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-28 12:33:36 (client local time) WITH STATUS 1 IN 112.972 SECONDS
stats: 24545 7 112.972 1
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c This solver internally uses Chaff 2004.11.15 Simplified

	Unexpected exception :
	St9bad_alloc
#### END SOLVER DATA ####
#### BEGIN WATCHER DATA ####
Enforcing CPU limit (will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime (will send SIGXCPU) limit: 1230 seconds
Enforcing VSIZE limit: 943718400 bytes
Enforcing Stack size limit: 67108864 bytes
Current StackSize limit: 67108864 bytes
Raw data (loadavg): 0.91 0.93 0.90 2/55 14221
Raw data (stat): 14221 (runsolver) R 14220 32363 32362 0 -1 64 8 0 0 0 0 0 0 0 20 0 1 0 742089057 884736 94 4294967295 134512640 135332820 3221224464 3221219644 135092226 0 2147483391 7 90112 0 0 0 17 1 0 0
Raw data (statm): 216 94 205 205 0 11 0
vsize: 864
[startup+10.0001 s]
Raw data (loadavg): 0.93 0.94 0.90 2/55 14221
Raw data (stat): 14221 (pb2sat) R 14220 32363 32362 0 -1 0 29443 0 0 0 937 62 0 0 25 0 1 0 742089057 90460160 18299 4294967295 134512640 135726644 3221224576 3220521728 134554600 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 22085 18299 300 300 0 21785 0
vsize: 88340
[startup+20.0002 s]
Raw data (loadavg): 0.94 0.94 0.91 2/55 14221
Raw data (stat): 14221 (pb2sat) R 14220 32363 32362 0 -1 0 57347 0 0 0 1885 114 0 0 25 0 1 0 742089057 176492544 34987 4294967295 134512640 135726644 3221224576 3220526644 134558179 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 43089 34987 300 300 0 42789 0
vsize: 172356
[startup+30.0004 s]
Raw data (loadavg): 0.95 0.94 0.91 2/55 14221
Raw data (stat): 14221 (pb2sat) R 14220 32363 32362 0 -1 0 96082 0 0 0 2811 189 0 0 25 0 1 0 742089057 296239104 51532 4294967295 134512640 135726644 3221224576 3220521596 135297978 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 72324 51532 300 300 0 72024 0
vsize: 289296
[startup+40.0001 s]
Raw data (loadavg): 0.95 0.94 0.91 2/55 14221
Raw data (stat): 14221 (pb2sat) R 14220 32363 32362 0 -1 0 112376 0 0 0 3780 220 0 0 25 0 1 0 742089057 347615232 67599 4294967295 134512640 135726644 3221224576 3220522400 135284899 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 84867 67599 300 300 0 84567 0
vsize: 339468
[startup+50.0008 s]
Raw data (loadavg): 0.96 0.94 0.91 2/55 14221
Raw data (stat): 14221 (pb2sat) R 14220 32363 32362 0 -1 0 148055 0 0 0 4717 283 0 0 25 0 1 0 742089057 544022528 102411 4294967295 134512640 135726644 3221224576 3220521724 135298008 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 132818 102411 300 300 0 132518 0
vsize: 531272
[startup+60.0005 s]
Raw data (loadavg): 0.97 0.94 0.91 2/55 14221
Raw data (stat): 14221 (pb2sat) R 14220 32363 32362 0 -1 0 189919 0 0 0 5638 362 0 0 25 0 1 0 742089057 692166656 125309 4294967295 134512640 135726644 3221224576 3220522192 134784885 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 168986 125309 300 300 0 168686 0
vsize: 675944
[startup+70.0001 s]
Raw data (loadavg): 0.97 0.94 0.91 2/55 14221
Raw data (stat): 14221 (pb2sat) R 14220 32363 32362 0 -1 0 200891 0 0 0 6614 386 0 0 25 0 1 0 742089057 625053696 111505 4294967295 134512640 135726644 3221224576 3220524880 134783287 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 152601 111505 300 300 0 152301 0
vsize: 610404
[startup+80.0012 s]
Raw data (loadavg): 0.98 0.95 0.91 2/55 14221
Raw data (stat): 14221 (pb2sat) R 14220 32363 32362 0 -1 0 219508 0 0 0 7580 420 0 0 25 0 1 0 742089057 650461184 129886 4294967295 134512640 135726644 3221224576 3220522960 134773409 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 158804 129886 300 300 0 158504 0
vsize: 635216
[startup+90.0005 s]
Raw data (loadavg): 0.98 0.95 0.91 2/55 14221
Raw data (stat): 14221 (pb2sat) R 14220 32363 32362 0 -1 0 239122 0 0 0 8540 460 0 0 25 0 1 0 742089057 680275968 149269 4294967295 134512640 135726644 3221224576 3220546992 134607280 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 166083 149269 300 300 0 165783 0
vsize: 664332
[startup+100.001 s]
Raw data (loadavg): 0.98 0.95 0.91 2/55 14221
Raw data (stat): 14221 (pb2sat) R 14220 32363 32362 0 -1 0 254360 0 0 0 9509 491 0 0 25 0 1 0 742089057 753676288 164326 4294967295 134512640 135726644 3221224576 3220524092 134604412 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 184003 164326 300 300 0 183703 0
vsize: 736012
[startup+110.002 s]
Raw data (loadavg): 0.98 0.95 0.91 2/55 14221
Raw data (stat): 14221 (pb2sat) R 14220 32363 32362 0 -1 0 258579 0 0 0 10488 512 0 0 25 0 1 0 742089057 400355328 97060 4294967295 134512640 135726644 3221224576 3221222764 135277538 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 97743 97060 300 300 0 97443 0
vsize: 390972
[startup+112.961 s]
Raw data (loadavg): 0.98 0.95 0.91 1/54 14221
Raw data (stat): 14221 (pb2sat) R 14220 32363 32362 0 -1 0 258579 0 0 0 10488 512 0 0 25 0 1 0 742089057 400355328 97060 4294967295 134512640 135726644 3221224576 3221222764 135277538 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 97743 97060 300 300 0 97443 0
vsize: 0

Child status: 1
Real time (s): 112.96
CPU time (s): 112.972
CPU user time (s): 107.636
CPU system time (s): 5.33619
CPU usage (%): 100.01
Max. virtual memory (Kb): 736012
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####