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-cap6000.opb
MD5SUMb4da9562dcd40afcc9afd9f695cf339d
Bench Categoryoptimization, medium integers (OPTMEDINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function -258414
Optimality of the best value was proved NO
Number of terms in the objective function 5995
Biggest coefficient in the objective function 91110
Number of bits for the biggest coefficient in the objective function 17
Sum of the numbers in the objective function 12969603
Number of bits of the sum of numbers in the objective function 24
Biggest number in a constraint 800000
Number of bits of the biggest number in a constraint 20
Biggest sum of numbers in a constraint 28761906
Number of bits of the biggest sum of numbers25
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1175.18
Number of variables6000
Total number of constraints8176
Number of constraints which are clauses222
Number of constraints which are cardinality constraints (but not clauses)7919
Number of constraints which are nor clauses,nor cardinality constraints35
Minimum length of a constraint1
Maximum length of a constraint6000

Trace number 42500 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc6 THE 2005-06-16 09:27:41 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25720 boxname=wulflinc6 idbench=1020 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  b4da9562dcd40afcc9afd9f695cf339d  /oldhome/oroussel/tmp/wulflinc6/normalized-mps-v2-20-10-cap6000.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc6/normalized-mps-v2-20-10-cap6000.opb
IDLAUNCH: 25720
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.042
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		: 451.042
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:        695564 kB
Buffers:         33608 kB
Cached:         282788 kB
SwapCached:       1028 kB
Active:          45324 kB
Inactive:       273264 kB
HighTotal:      131008 kB
HighFree:          280 kB
LowTotal:       903652 kB
LowFree:        695284 kB
SwapTotal:     2097136 kB
SwapFree:      2095200 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5092 kB
Slab:            14932 kB
Committed_AS:    63844 kB
PageTables:        320 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 09:29:24 (client local time) WITH STATUS 1 IN 103.283 SECONDS
stats: 25720 7 103.283 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 0.94 0.90 1/54 17501
Raw data (stat): 17501 (runsolver) R 17500 25568 25567 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 969678990 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+9.99985 s]
Raw data (loadavg): 0.92 0.94 0.90 2/54 17501
Raw data (stat): 17501 (pb2sat-v2) R 17500 25568 25567 0 -1 0 25609 0 0 0 940 58 0 0 25 0 1 0 969678990 78946304 14511 4294967295 134512640 135730672 3221224576 3218523256 134787727 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 19274 14511 301 301 0 18973 0
vsize: 77096
[startup+20.0003 s]
Raw data (loadavg): 0.93 0.94 0.91 2/54 17501
Raw data (stat): 17501 (pb2sat-v2) R 17500 25568 25567 0 -1 0 54231 0 0 0 1879 119 0 0 25 0 1 0 969678990 174645248 31902 4294967295 134512640 135730672 3221224576 3218793304 134787727 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 42638 31902 301 301 0 42337 0
vsize: 170552
[startup+30.0003 s]
Raw data (loadavg): 0.94 0.94 0.91 2/54 17501
Raw data (stat): 17501 (pb2sat-v2) R 17500 25568 25567 0 -1 0 83103 0 0 0 2823 175 0 0 25 0 1 0 969678990 247132160 50836 4294967295 134512640 135730672 3221224576 3218945176 134606737 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 60335 50836 301 301 0 60034 0
vsize: 241340
[startup+40.0003 s]
Raw data (loadavg): 0.95 0.94 0.91 2/54 17501
Raw data (stat): 17501 (pb2sat-v2) R 17500 25568 25567 0 -1 0 111259 0 0 0 3759 239 0 0 25 0 1 0 969678990 348995584 66479 4294967295 134512640 135730672 3221224576 3219089640 135285983 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 85204 66480 301 301 0 84903 0
vsize: 340816
[startup+50.0007 s]
Raw data (loadavg): 0.96 0.94 0.91 2/54 17501
Raw data (stat): 17501 (pb2sat-v2) R 17500 25568 25567 0 -1 0 155688 0 0 0 4675 324 0 0 25 0 1 0 969678990 557297664 109690 4294967295 134512640 135730672 3221224576 3219233968 135282719 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 136059 109690 301 301 0 135758 0
vsize: 544236
[startup+60.0009 s]
Raw data (loadavg): 0.96 0.94 0.91 2/54 17501
Raw data (stat): 17501 (pb2sat-v2) R 17500 25568 25567 0 -1 0 177981 0 0 0 5625 374 0 0 25 0 1 0 969678990 691515392 113352 4294967295 134512640 135730672 3221224576 3218635584 134788521 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 168827 113356 301 301 0 168526 0
vsize: 675308
[startup+70.0007 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 17501
Raw data (stat): 17501 (pb2sat-v2) R 17500 25568 25567 0 -1 0 203735 0 0 0 6567 433 0 0 25 0 1 0 969678990 630755328 114317 4294967295 134512640 135730672 3221224576 3218926668 135291075 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 153993 114318 301 301 0 153692 0
vsize: 615972
[startup+80.0012 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 17501
Raw data (stat): 17501 (pb2sat-v2) R 17500 25568 25567 0 -1 0 225393 0 0 0 7522 478 0 0 25 0 1 0 969678990 664412160 135719 4294967295 134512640 135730672 3221224576 3218972872 134787727 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 162210 135721 301 301 0 161909 0
vsize: 648840
[startup+90.001 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 17501
Raw data (stat): 17501 (pb2sat-v2) R 17500 25568 25567 0 -1 0 247103 0 0 0 8478 522 0 0 25 0 1 0 969678990 697663488 157168 4294967295 134512640 135730672 3221224576 3219559544 135285983 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 170328 157168 301 301 0 170027 0
vsize: 681312
[startup+100 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 17501
Raw data (stat): 17501 (pb2sat-v2) R 17500 25568 25567 0 -1 0 255189 0 0 0 9446 554 0 0 25 0 1 0 969678990 400216064 97293 4294967295 134512640 135730672 3221224576 3221222764 135281187 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 97709 97293 301 301 0 97408 0
vsize: 390836
[startup+103.275 s]
Raw data (loadavg): 0.98 0.95 0.91 1/53 17501
Raw data (stat): 17501 (pb2sat-v2) R 17500 25568 25567 0 -1 0 255189 0 0 0 9446 554 0 0 25 0 1 0 969678990 400216064 97293 4294967295 134512640 135730672 3221224576 3221222764 135281187 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 97709 97293 301 301 0 97408 0
vsize: 0

Child status: 1
Real time (s): 103.274
CPU time (s): 103.283
CPU user time (s): 97.5362
CPU system time (s): 5.74713
CPU usage (%): 100.009
Max. virtual memory (Kb): 681312
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####