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/miplib/normalized-mps-v2-13-7-mod008.opb
MD5SUMfbdb3cf321a85412feefcaac30780520
Bench Categoryoptimization, small integers (OPTSMALLINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 307
Optimality of the best value was proved NO
Number of terms in the objective function 319
Biggest coefficient in the objective function 87
Number of bits for the biggest coefficient in the objective function 7
Sum of the numbers in the objective function 23554
Number of bits of the sum of numbers in the objective function 15
Biggest number in a constraint 22000
Number of bits of the biggest number in a constraint 15
Biggest sum of numbers in a constraint 1027256
Number of bits of the biggest sum of numbers20
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1.01684
Number of variables319
Total number of constraints325
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)319
Number of constraints which are nor clauses,nor cardinality constraints6
Minimum length of a constraint1
Maximum length of a constraint231

Trace number 42791 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc5 THE 2005-06-16 15:11:17 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=26010 boxname=wulflinc5 idbench=1310 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  fbdb3cf321a85412feefcaac30780520  /oldhome/oroussel/tmp/wulflinc5/normalized-mps-v2-13-7-mod008.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc5/normalized-mps-v2-13-7-mod008.opb
IDLAUNCH: 26010
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.007
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		: 451.007
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:        681456 kB
Buffers:         20152 kB
Cached:         310280 kB
SwapCached:        660 kB
Active:          24560 kB
Inactive:       307972 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        681204 kB
SwapTotal:     2097136 kB
SwapFree:      2095536 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5156 kB
Slab:            14996 kB
Committed_AS:    63716 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 15:13:13 (client local time) WITH STATUS 1 IN 116.347 SECONDS
stats: 26010 7 116.347 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): 0.93 0.97 0.91 2/54 16578
Raw data (stat): 16578 (runsolver) R 16577 7266 7265 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 971741894 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+10.001 s]
Raw data (loadavg): 0.94 0.97 0.91 2/54 16578
Raw data (stat): 16578 (pb2sat-v2) R 16577 7266 7265 0 -1 0 29328 0 0 0 942 56 0 0 25 0 1 0 971741894 89022464 18224 4294967295 134512640 135730672 3221224576 3221124800 134546586 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 21734 18224 301 301 0 21433 0
vsize: 86936
[startup+20.0024 s]
Raw data (loadavg): 0.95 0.97 0.91 2/54 16578
Raw data (stat): 16578 (pb2sat-v2) R 16577 7266 7265 0 -1 0 56710 0 0 0 1891 108 0 0 25 0 1 0 971741894 173907968 34406 4294967295 134512640 135730672 3221224576 3221130764 134769942 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 42458 34406 301 301 0 42157 0
vsize: 169832
[startup+30.0026 s]
Raw data (loadavg): 0.95 0.97 0.91 2/54 16578
Raw data (stat): 16578 (pb2sat-v2) R 16577 7266 7265 0 -1 0 96343 0 0 0 2813 186 0 0 25 0 1 0 971741894 298643456 51864 4294967295 134512640 135730672 3221224576 3221130348 134607999 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 72911 51864 301 301 0 72610 0
vsize: 291644
[startup+40.0037 s]
Raw data (loadavg): 0.96 0.97 0.91 2/54 16578
Raw data (stat): 16578 (pb2sat-v2) R 16577 7266 7265 0 -1 0 110197 0 0 0 3788 211 0 0 25 0 1 0 971741894 341254144 65505 4294967295 134512640 135730672 3221224576 3221146792 135285983 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 83314 65505 301 301 0 83013 0
vsize: 333256
[startup+50.0044 s]
Raw data (loadavg): 0.97 0.97 0.91 2/54 16578
Raw data (stat): 16578 (pb2sat-v2) R 16577 7266 7265 0 -1 0 129818 0 0 0 4752 248 0 0 25 0 1 0 971741894 370089984 84896 4294967295 134512640 135730672 3221224576 3221153048 135285983 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 90354 84896 301 301 0 90053 0
vsize: 361416
[startup+60.0038 s]
Raw data (loadavg): 0.97 0.97 0.91 2/54 16578
Raw data (stat): 16578 (pb2sat-v2) R 16577 7266 7265 0 -1 0 190062 0 0 0 5637 362 0 0 25 0 1 0 971741894 594923520 101025 4294967295 134512640 135730672 3221224576 3221153216 134608725 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 145245 101025 301 301 0 144944 0
vsize: 580980
[startup+70.0052 s]
Raw data (loadavg): 0.97 0.97 0.91 2/54 16578
Raw data (stat): 16578 (pb2sat-v2) R 16577 7266 7265 0 -1 0 200216 0 0 0 6617 383 0 0 25 0 1 0 971741894 628477952 110990 4294967295 134512640 135730672 3221224576 3221168520 134787727 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 153437 110990 301 301 0 153136 0
vsize: 613748
[startup+80.0057 s]
Raw data (loadavg): 0.98 0.97 0.91 2/54 16578
Raw data (stat): 16578 (pb2sat-v2) R 16577 7266 7265 0 -1 0 214928 0 0 0 7592 408 0 0 25 0 1 0 971741894 639971328 125483 4294967295 134512640 135730672 3221224576 3221158640 134786278 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 156243 125483 301 301 0 155942 0
vsize: 624972
[startup+90.0061 s]
Raw data (loadavg): 0.98 0.97 0.91 2/54 16578
Raw data (stat): 16578 (pb2sat-v2) R 16577 7266 7265 0 -1 0 233941 0 0 0 8557 443 0 0 25 0 1 0 971741894 668254208 144269 4294967295 134512640 135730672 3221224576 3221154048 134546473 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 163148 144269 301 301 0 162847 0
vsize: 652592
[startup+100.006 s]
Raw data (loadavg): 0.98 0.97 0.91 2/54 16578
Raw data (stat): 16578 (pb2sat-v2) R 16577 7266 7265 0 -1 0 249010 0 0 0 9532 469 0 0 25 0 1 0 971741894 741232640 159159 4294967295 134512640 135730672 3221224576 3221180200 135285983 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 180965 159159 301 301 0 180664 0
vsize: 723860
[startup+110.007 s]
Raw data (loadavg): 0.99 0.97 0.91 2/54 16578
Raw data (stat): 16578 (pb2sat-v2) R 16577 7266 7265 0 -1 0 261246 0 0 0 10493 508 0 0 25 0 1 0 971741894 400138240 97163 4294967295 134512640 135730672 3221224576 3221222764 135281187 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 97690 97163 301 301 0 97389 0
vsize: 390760
[startup+116.344 s]
Raw data (loadavg): 0.99 0.97 0.91 1/53 16578
Raw data (stat): 16578 (pb2sat-v2) R 16577 7266 7265 0 -1 0 261246 0 0 0 10493 508 0 0 25 0 1 0 971741894 400138240 97163 4294967295 134512640 135730672 3221224576 3221222764 135281187 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 97690 97163 301 301 0 97389 0
vsize: 0

Child status: 1
Real time (s): 116.343
CPU time (s): 116.347
CPU user time (s): 111.057
CPU system time (s): 5.29019
CPU usage (%): 100.003
Max. virtual memory (Kb): 723860
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####