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-misc07.opb
MD5SUMb95827c7e083aae37933a3b226b8189b
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 1076833280
Optimality of the best value was proved NO
Number of terms in the objective function 31
Biggest coefficient in the objective function 1073741824
Number of bits for the biggest coefficient in the objective function 31
Sum of the numbers in the objective function 2147483647
Number of bits of the sum of numbers in the objective function 31
Biggest number in a constraint 1073741824
Number of bits of the biggest number in a constraint 31
Biggest sum of numbers in a constraint 3287948287
Number of bits of the biggest sum of numbers32
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1243.78
Number of variables290
Total number of constraints471
Number of constraints which are clauses127
Number of constraints which are cardinality constraints (but not clauses)272
Number of constraints which are nor clauses,nor cardinality constraints72
Minimum length of a constraint1
Maximum length of a constraint263

Trace number 35263 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc21 THE 2005-05-28 12:36:38 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24574 boxname=wulflinc21 idbench=1046 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  b95827c7e083aae37933a3b226b8189b  /oldhome/oroussel/tmp/wulflinc21/normalized-mps-v2-20-10-misc07.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc21/normalized-mps-v2-20-10-misc07.opb
IDLAUNCH: 24574
/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:        847864 kB
Buffers:         34616 kB
Cached:         129192 kB
SwapCached:        956 kB
Active:          54000 kB
Inactive:       112000 kB
HighTotal:      131008 kB
HighFree:          476 kB
LowTotal:       903652 kB
LowFree:        847388 kB
SwapTotal:     2097892 kB
SwapFree:      2096012 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5136 kB
Slab:            15348 kB
Committed_AS:    63912 kB
PageTables:        332 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-28 12:38:22 (client local time) WITH STATUS 1 IN 102.927 SECONDS
stats: 24574 7 102.927 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
Raw data (loadavg): 0.91 0.94 0.90 2/55 14500
Raw data (stat): 14500 (runsolver) R 14499 32363 32362 0 -1 64 1 0 0 0 0 0 0 0 20 0 1 0 742118626 884736 93 4294967295 134512640 135332820 3221224464 3221219808 134957970 0 0 7 90112 0 0 0 17 1 0 0
Raw data (statm): 216 93 205 205 0 11 0
vsize: 864
Current StackSize limit: 67108864 bytes
[startup+10.0006 s]
Raw data (loadavg): 0.92 0.94 0.90 2/55 14500
Raw data (stat): 14500 (pb2sat) R 14499 32363 32362 0 -1 0 30487 0 0 0 937 62 0 0 25 0 1 0 742118626 90517504 19339 4294967295 134512640 135726644 3221224576 3221167824 134782702 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 22099 19339 300 300 0 21799 0
vsize: 88396
[startup+20.0003 s]
Raw data (loadavg): 0.94 0.94 0.91 2/55 14500
Raw data (stat): 14500 (pb2sat) R 14499 32363 32362 0 -1 0 60012 0 0 0 1877 123 0 0 25 0 1 0 742118626 177557504 37639 4294967295 134512640 135726644 3221224576 3221165872 134554691 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 43349 37639 300 300 0 43049 0
vsize: 173396
[startup+30.001 s]
Raw data (loadavg): 0.94 0.94 0.91 2/55 14500
Raw data (stat): 14500 (pb2sat) R 14499 32363 32362 0 -1 0 99320 0 0 0 2796 203 0 0 25 0 1 0 742118626 332308480 54766 4294967295 134512640 135726644 3221224576 3221170400 134560113 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 81130 54766 300 300 0 80830 0
vsize: 324520
[startup+40.0006 s]
Raw data (loadavg): 0.95 0.94 0.91 2/55 14500
Raw data (stat): 14500 (pb2sat) R 14499 32363 32362 0 -1 0 118060 0 0 0 3760 240 0 0 25 0 1 0 742118626 350691328 73256 4294967295 134512640 135726644 3221224576 3221177008 134739592 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 85618 73256 300 300 0 85318 0
vsize: 342472
[startup+50.0003 s]
Raw data (loadavg): 0.96 0.94 0.91 2/55 14500
Raw data (stat): 14500 (pb2sat) R 14499 32363 32362 0 -1 0 163250 0 0 0 4679 321 0 0 25 0 1 0 742118626 563318784 117252 4294967295 134512640 135726644 3221224576 3221164656 135280560 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 137529 117252 300 300 0 137229 0
vsize: 550116
[startup+60.0001 s]
Raw data (loadavg): 0.97 0.95 0.91 2/55 14500
Raw data (stat): 14500 (pb2sat) R 14499 32363 32362 0 -1 0 198216 0 0 0 5603 397 0 0 25 0 1 0 742118626 630423552 109043 4294967295 134512640 135726644 3221224576 3221173344 134780354 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 153912 109043 300 300 0 153612 0
vsize: 615648
[startup+70.0007 s]
Raw data (loadavg): 0.97 0.95 0.91 2/55 14500
Raw data (stat): 14500 (pb2sat) R 14499 32363 32362 0 -1 0 211377 0 0 0 6577 423 0 0 25 0 1 0 742118626 630423552 121972 4294967295 134512640 135726644 3221224576 3221169824 134782675 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 153912 121972 300 300 0 153612 0
vsize: 615648
[startup+80.0014 s]
Raw data (loadavg): 0.97 0.95 0.91 2/55 14500
Raw data (stat): 14500 (pb2sat) R 14499 32363 32362 0 -1 0 232645 0 0 0 7535 466 0 0 25 0 1 0 742118626 660430848 142995 4294967295 134512640 135726644 3221224576 3221189564 134604412 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 161238 142995 300 300 0 160938 0
vsize: 644952
[startup+90.001 s]
Raw data (loadavg): 0.98 0.95 0.91 2/55 14500
Raw data (stat): 14500 (pb2sat) R 14499 32363 32362 0 -1 0 250005 0 0 0 8501 499 0 0 25 0 1 0 742118626 735227904 160155 4294967295 134512640 135726644 3221224576 3221201560 134603715 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 179499 160155 300 300 0 179199 0
vsize: 717996
[startup+100.001 s]
Raw data (loadavg): 0.98 0.95 0.91 2/55 14500
Raw data (stat): 14500 (pb2sat) R 14499 32363 32362 0 -1 0 265984 0 0 0 9467 534 0 0 25 0 1 0 742118626 758849536 175951 4294967295 134512640 135726644 3221224576 3221223040 134732753 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 185266 175951 300 300 0 184966 0
vsize: 741064
[startup+102.916 s]
Raw data (loadavg): 0.98 0.95 0.91 1/54 14500
Raw data (stat): 14500 (pb2sat) R 14499 32363 32362 0 -1 0 265984 0 0 0 9467 534 0 0 25 0 1 0 742118626 758849536 175951 4294967295 134512640 135726644 3221224576 3221223040 134732753 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 185266 175951 300 300 0 184966 0
vsize: 0

Child status: 1
Real time (s): 102.916
CPU time (s): 102.927
CPU user time (s): 97.2212
CPU system time (s): 5.70613
CPU usage (%): 100.011
Max. virtual memory (Kb): 741064
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####