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/miplib2003/normalized-mps-v2-20-10-modglob.opb
MD5SUM18f1d450b3ce1b90a2f0f08d0288db4f
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 9818
Biggest coefficient in the objective function 22009559908352000000
Number of bits for the biggest coefficient in the objective function 65
Sum of the numbers in the objective function 1485172925553747165184
Number of bits of the sum of numbers in the objective function 71
Biggest number in a constraint 22009559908352000000
Number of bits of the biggest number in a constraint 65
Biggest sum of numbers in a constraint 1485172925553747165184
Number of bits of the biggest sum of numbers71
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.089985
Number of variables9818
Total number of constraints389
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)98
Number of constraints which are nor clauses,nor cardinality constraints291
Minimum length of a constraint1
Maximum length of a constraint270

Trace number 35201

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc1 THE 2005-05-28 12:25:12 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24508 boxname=wulflinc1 idbench=980 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  18f1d450b3ce1b90a2f0f08d0288db4f  /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-20-10-modglob.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-20-10-modglob.opb
IDLAUNCH: 24508
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.053
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		: 451.053
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:        711216 kB
Buffers:         36672 kB
Cached:         262596 kB
SwapCached:        680 kB
Active:          19552 kB
Inactive:       281920 kB
HighTotal:      131008 kB
HighFree:        25032 kB
LowTotal:       903652 kB
LowFree:        686184 kB
SwapTotal:     2097136 kB
SwapFree:      2095368 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5812 kB
Slab:            16208 kB
Committed_AS:    92716 kB
PageTables:        332 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-28 12:26:51 (client local time) WITH STATUS 1 IN 99.0099 SECONDS
stats: 24508 7 99.0099 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): 0.83 0.93 0.90 2/55 19829
Raw data (stat): 19829 (runsolver) R 19828 8378 8377 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 749706647 884736 94 4294967295 134512640 135332820 3221224464 3221219644 135092226 0 2147483391 7 90112 0 0 0 17 0 0 0
Raw data (statm): 216 94 205 205 0 11 0
vsize: 864
[startup+10.0003 s]
Raw data (loadavg): 0.85 0.93 0.90 2/55 19829
Raw data (stat): 19829 (pb2sat) R 19828 8378 8377 0 -1 0 28161 0 0 0 937 61 0 0 25 0 1 0 749706647 84000768 17026 4294967295 134512640 135726644 3221224576 3217276552 134784091 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 20508 17026 300 300 0 20208 0
vsize: 82032
[startup+20.001 s]
Raw data (loadavg): 0.88 0.93 0.90 2/55 19829
Raw data (stat): 19829 (pb2sat) R 19828 8378 8377 0 -1 0 57417 0 0 0 1879 120 0 0 25 0 1 0 749706647 181006336 35034 4294967295 134512640 135726644 3221224576 3217306224 134604377 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 44191 35034 300 300 0 43891 0
vsize: 176764
[startup+30.0059 s]
Raw data (loadavg): 0.89 0.93 0.90 2/55 19829
Raw data (stat): 19829 (pb2sat) R 19828 8378 8377 0 -1 0 88987 0 0 0 2819 180 0 0 25 0 1 0 749706647 346599424 56651 4294967295 134512640 135726644 3221224576 3217279392 134784885 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 84619 56655 300 300 0 84319 0
vsize: 338476
[startup+40.0056 s]
Raw data (loadavg): 0.91 0.93 0.90 2/55 19829
Raw data (stat): 19829 (pb2sat) R 19828 8378 8377 0 -1 0 115727 0 0 0 3764 236 0 0 25 0 1 0 749706647 358363136 70854 4294967295 134512640 135726644 3221224576 3217276480 134782642 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 87491 70855 300 300 0 87191 0
vsize: 349964
[startup+50.0097 s]
Raw data (loadavg): 0.92 0.94 0.90 2/55 19829
Raw data (stat): 19829 (pb2sat) R 19828 8378 8377 0 -1 0 155024 0 0 0 4688 313 0 0 25 0 1 0 749706647 485597184 90206 4294967295 134512640 135726644 3221224576 3217274892 134604449 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 118554 90207 300 300 0 118254 0
vsize: 474216
[startup+60.0092 s]
Raw data (loadavg): 0.93 0.94 0.90 2/55 19829
Raw data (stat): 19829 (pb2sat) R 19828 8378 8377 0 -1 0 188261 0 0 0 5623 378 0 0 25 0 1 0 749706647 686927872 123190 4294967295 134512640 135726644 3221224576 3217324192 134784885 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 167707 123194 300 300 0 167407 0
vsize: 670828
[startup+70.023 s]
Raw data (loadavg): 0.94 0.94 0.91 2/55 19829
Raw data (stat): 19829 (pb2sat) R 19828 8378 8377 0 -1 0 209575 0 0 0 6577 425 0 0 25 0 1 0 749706647 642670592 119679 4294967295 134512640 135726644 3221224576 3217302000 134780435 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 156902 119679 300 300 0 156602 0
vsize: 627608
[startup+80.0267 s]
Raw data (loadavg): 0.95 0.94 0.91 2/55 19829
Raw data (stat): 19829 (pb2sat) R 19828 8378 8377 0 -1 0 230144 0 0 0 7538 465 0 0 25 0 1 0 749706647 674103296 139984 4294967295 134512640 135726644 3221224576 3217273280 134783238 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 164576 139985 300 300 0 164276 0
vsize: 658304
[startup+90.0266 s]
Raw data (loadavg): 0.96 0.94 0.91 2/55 19829
Raw data (stat): 19829 (pb2sat) R 19828 8378 8377 0 -1 0 247235 0 0 0 8505 498 0 0 25 0 1 0 749706647 703832064 156785 4294967295 134512640 135726644 3221224576 3221222656 135280446 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 171834 156785 300 300 0 171534 0
vsize: 687336
[startup+99.0083 s]
Raw data (loadavg): 0.97 0.94 0.91 1/54 19829
Raw data (stat): 19829 (pb2sat) R 19828 8378 8377 0 -1 0 247235 0 0 0 8505 498 0 0 25 0 1 0 749706647 703832064 156785 4294967295 134512640 135726644 3221224576 3221222656 135280446 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 171834 156785 300 300 0 171534 0
vsize: 0

Child status: 1
Real time (s): 99.0079
CPU time (s): 99.0099
CPU user time (s): 93.7068
CPU system time (s): 5.30319
CPU usage (%): 100.002
Max. virtual memory (Kb): 687336
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####