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-v2-13-7/MIPLIB/miplib2003/normalized-mps-v2-13-7-mas76.opb
MD5SUM66dc35c272851710d42f962f762f049c
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 237
Biggest coefficient in the objective function 241785163922925834941235200000
Number of bits for the biggest coefficient in the objective function 98
Sum of the numbers in the objective function 483570327845851669882470400000
Number of bits of the sum of numbers in the objective function 99
Biggest number in a constraint 302231454903657293676544000000000
Number of bits of the biggest number in a constraint 108
Biggest sum of numbers in a constraint 604462909807314587353088000000000
Number of bits of the biggest sum of numbers109
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1233.47
Number of variables237
Total number of constraints163
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)151
Number of constraints which are nor clauses,nor cardinality constraints12
Minimum length of a constraint1
Maximum length of a constraint236

Trace number 42839 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc1 THE 2005-06-16 16:25:49 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=26060 boxname=wulflinc1 idbench=1360 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  66dc35c272851710d42f962f762f049c  /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-13-7-mas76.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-13-7-mas76.opb
IDLAUNCH: 26060
/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:        703040 kB
Buffers:         25800 kB
Cached:         281560 kB
SwapCached:       1156 kB
Active:          27084 kB
Inactive:       282540 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        702788 kB
SwapTotal:     2097136 kB
SwapFree:      2094896 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5364 kB
Slab:            15988 kB
Committed_AS:    92720 kB
PageTables:        332 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 16:27:40 (client local time) WITH STATUS 1 IN 111.234 SECONDS
stats: 26060 7 111.234 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 0.95 0.90 2/55 23028
Raw data (stat): 23028 (runsolver) R 23027 8378 8377 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 915331945 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+10.0005 s]
Raw data (loadavg): 0.93 0.95 0.91 2/55 23028
Raw data (stat): 23028 (pb2sat-v2) R 23027 8378 8377 0 -1 0 28298 0 0 0 942 57 0 0 25 0 1 0 915331945 88403968 17158 4294967295 134512640 135730672 3221224576 3221128920 135285983 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 21583 17159 301 301 0 21282 0
vsize: 86332
[startup+20.0002 s]
Raw data (loadavg): 0.94 0.95 0.91 2/55 23028
Raw data (stat): 23028 (pb2sat-v2) R 23027 8378 8377 0 -1 0 55437 0 0 0 1889 109 0 0 25 0 1 0 915331945 173682688 33081 4294967295 134512640 135730672 3221224576 3221128616 135285983 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 42403 33082 301 301 0 42102 0
vsize: 169612
[startup+30.001 s]
Raw data (loadavg): 0.95 0.95 0.91 2/55 23028
Raw data (stat): 23028 (pb2sat-v2) R 23027 8378 8377 0 -1 0 82009 0 0 0 2844 155 0 0 25 0 1 0 915331945 243085312 49739 4294967295 134512640 135730672 3221224576 3221127600 134546351 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 59347 49739 301 301 0 59046 0
vsize: 237388
[startup+40.0008 s]
Raw data (loadavg): 0.95 0.95 0.91 2/55 23028
Raw data (stat): 23028 (pb2sat-v2) R 23027 8378 8377 0 -1 0 108394 0 0 0 3789 210 0 0 25 0 1 0 915331945 341975040 63632 4294967295 134512640 135730672 3221224576 3221126192 134546591 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 83490 63634 301 301 0 83189 0
vsize: 333960
[startup+50.001 s]
Raw data (loadavg): 0.96 0.95 0.91 2/55 23028
Raw data (stat): 23028 (pb2sat-v2) R 23027 8378 8377 0 -1 0 137253 0 0 0 4734 265 0 0 25 0 1 0 915331945 528842752 91876 4294967295 134512640 135730672 3221224576 3221127696 134775564 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 129112 91879 301 301 0 128811 0
vsize: 516448
[startup+60.0014 s]
Raw data (loadavg): 0.97 0.95 0.91 2/55 23028
Raw data (stat): 23028 (pb2sat-v2) R 23027 8378 8377 0 -1 0 162015 0 0 0 5692 308 0 0 25 0 1 0 915331945 482684928 97240 4294967295 134512640 135730672 3221224576 3221130348 134608065 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 117843 97240 301 301 0 117542 0
vsize: 471372
[startup+70.0012 s]
Raw data (loadavg): 0.97 0.96 0.91 2/55 23028
Raw data (stat): 23028 (pb2sat-v2) R 23027 8378 8377 0 -1 0 196789 0 0 0 6620 379 0 0 25 0 1 0 915331945 583348224 107233 4294967295 134512640 135730672 3221224576 3221125696 134786292 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 142419 107233 301 301 0 142118 0
vsize: 569676
[startup+80.002 s]
Raw data (loadavg): 0.97 0.96 0.91 2/55 23028
Raw data (stat): 23028 (pb2sat-v2) R 23027 8378 8377 0 -1 0 212981 0 0 0 7586 414 0 0 25 0 1 0 915331945 641097728 123220 4294967295 134512640 135730672 3221224576 3221132328 134787727 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 156518 123220 301 301 0 156217 0
vsize: 626072
[startup+90.0018 s]
Raw data (loadavg): 0.98 0.96 0.91 2/55 23028
Raw data (stat): 23028 (pb2sat-v2) R 23027 8378 8377 0 -1 0 231449 0 0 0 8555 445 0 0 25 0 1 0 915331945 668672000 141460 4294967295 134512640 135730672 3221224576 3221126800 134788125 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 163250 141460 301 301 0 162949 0
vsize: 653000
[startup+100.002 s]
Raw data (loadavg): 0.98 0.96 0.91 2/55 23028
Raw data (stat): 23028 (pb2sat-v2) R 23027 8378 8377 0 -1 0 249962 0 0 0 9519 481 0 0 25 0 1 0 915331945 697921536 159743 4294967295 134512640 135730672 3221224576 3221132304 134610850 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 170391 159743 301 301 0 170090 0
vsize: 681564
[startup+110.003 s]
Raw data (loadavg): 0.98 0.96 0.91 2/55 23028
Raw data (stat): 23028 (pb2sat-v2) R 23027 8378 8377 0 -1 0 250825 0 0 0 10505 495 0 0 25 0 1 0 915331945 387391488 94078 4294967295 134512640 135730672 3221224576 3221222928 135284078 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 94578 94078 301 301 0 94277 0
vsize: 378312
[startup+111.23 s]
Raw data (loadavg): 0.98 0.96 0.91 1/54 23028
Raw data (stat): 23028 (pb2sat-v2) R 23027 8378 8377 0 -1 0 250825 0 0 0 10505 495 0 0 25 0 1 0 915331945 387391488 94078 4294967295 134512640 135730672 3221224576 3221222928 135284078 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 94578 94078 301 301 0 94277 0
vsize: 0

Child status: 1
Real time (s): 111.23
CPU time (s): 111.234
CPU user time (s): 106.08
CPU system time (s): 5.15422
CPU usage (%): 100.004
Max. virtual memory (Kb): 681564
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####