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/miplib/normalized-mps-v2-20-10-p6000.opb
MD5SUM9658c3320439c0e9ede5a5b3bf39501b
Bench Categoryoptimization, medium integers (OPTMEDINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function -279330
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 benchmark1175.15
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 42417 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc6 THE 2005-06-16 07:09:27 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25638 boxname=wulflinc6 idbench=938 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  9658c3320439c0e9ede5a5b3bf39501b  /oldhome/oroussel/tmp/wulflinc6/normalized-mps-v2-20-10-p6000.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc6/normalized-mps-v2-20-10-p6000.opb
IDLAUNCH: 25638
/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:        735640 kB
Buffers:         33356 kB
Cached:         242920 kB
SwapCached:       1028 kB
Active:          33752 kB
Inactive:       244720 kB
HighTotal:      131008 kB
HighFree:        12516 kB
LowTotal:       903652 kB
LowFree:        723124 kB
SwapTotal:     2097136 kB
SwapFree:      2095200 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5092 kB
Slab:            14940 kB
Committed_AS:    63848 kB
PageTables:        320 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 07:11:10 (client local time) WITH STATUS 1 IN 103.055 SECONDS
stats: 25638 7 103.055 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 2/54 15988
Raw data (stat): 15988 (runsolver) R 15987 25568 25567 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 968849519 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+10.0007 s]
Raw data (loadavg): 0.93 0.95 0.90 2/54 15988
Raw data (stat): 15988 (pb2sat-v2) R 15987 25568 25567 0 -1 0 25485 0 0 0 940 59 0 0 25 0 1 0 968849519 78675968 14388 4294967295 134512640 135730672 3221224576 3218565392 134546351 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 19208 14389 301 301 0 18907 0
vsize: 76832
[startup+20.0004 s]
Raw data (loadavg): 0.94 0.96 0.91 2/54 15988
Raw data (stat): 15988 (pb2sat-v2) R 15987 25568 25567 0 -1 0 54196 0 0 0 1879 120 0 0 25 0 1 0 968849519 174645248 31868 4294967295 134512640 135730672 3221224576 3218808156 134608065 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 42638 31869 301 301 0 42337 0
vsize: 170552
[startup+30.0006 s]
Raw data (loadavg): 0.95 0.96 0.91 2/54 15988
Raw data (stat): 15988 (pb2sat-v2) R 15987 25568 25567 0 -1 0 83132 0 0 0 2826 173 0 0 25 0 1 0 968849519 247132160 50864 4294967295 134512640 135730672 3221224576 3218941748 134612535 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 60335 50867 301 301 0 60034 0
vsize: 241340
[startup+39.9997 s]
Raw data (loadavg): 0.95 0.96 0.91 2/54 15988
Raw data (stat): 15988 (pb2sat-v2) R 15987 25568 25567 0 -1 0 111678 0 0 0 3762 238 0 0 25 0 1 0 968849519 349671424 66893 4294967295 134512640 135730672 3221224576 3218738632 135285983 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 85369 66893 301 301 0 85068 0
vsize: 341476
[startup+49.9999 s]
Raw data (loadavg): 0.96 0.96 0.91 2/54 15988
Raw data (stat): 15988 (pb2sat-v2) R 15987 25568 25567 0 -1 0 155688 0 0 0 4680 320 0 0 25 0 1 0 968849519 557297664 109690 4294967295 134512640 135730672 3221224576 3219234112 134776110 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 136059 109690 301 301 0 135758 0
vsize: 544236
[startup+59.9991 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 15988
Raw data (stat): 15988 (pb2sat-v2) R 15987 25568 25567 0 -1 0 181188 0 0 0 5625 375 0 0 25 0 1 0 968849519 691515392 116559 4294967295 134512640 135730672 3221224576 3218635584 134788521 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 168827 116564 301 301 0 168526 0
vsize: 675308
[startup+69.9996 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 15988
Raw data (stat): 15988 (pb2sat-v2) R 15987 25568 25567 0 -1 0 204117 0 0 0 6576 425 0 0 25 0 1 0 968849519 631431168 114695 4294967295 134512640 135730672 3221224576 3218898632 135285983 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 154158 114695 301 301 0 153857 0
vsize: 616632
[startup+79.9993 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 15988
Raw data (stat): 15988 (pb2sat-v2) R 15987 25568 25567 0 -1 0 225794 0 0 0 7528 473 0 0 25 0 1 0 968849519 665088000 136116 4294967295 134512640 135730672 3221224576 3218576016 134786871 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 162375 136118 301 301 0 162074 0
vsize: 649500
[startup+89.9988 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 15988
Raw data (stat): 15988 (pb2sat-v2) R 15987 25568 25567 0 -1 0 247555 0 0 0 8480 522 0 0 25 0 1 0 968849519 698339328 157614 4294967295 134512640 135730672 3221224576 3219398272 134770727 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 170493 157614 301 301 0 170192 0
vsize: 681972
[startup+99.9991 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 15988
Raw data (stat): 15988 (pb2sat-v2) R 15987 25568 25567 0 -1 0 255189 0 0 0 9447 554 0 0 25 0 1 0 968849519 400216064 97293 4294967295 134512640 135730672 3221224576 3221222764 135281159 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 97709 97293 301 301 0 97408 0
vsize: 390836
[startup+103.036 s]
Raw data (loadavg): 0.98 0.96 0.91 1/53 15988
Raw data (stat): 15988 (pb2sat-v2) R 15987 25568 25567 0 -1 0 255189 0 0 0 9447 554 0 0 25 0 1 0 968849519 400216064 97293 4294967295 134512640 135730672 3221224576 3221222764 135281159 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): 103.035
CPU time (s): 103.055
CPU user time (s): 97.3042
CPU system time (s): 5.75113
CPU usage (%): 100.02
Max. virtual memory (Kb): 681972
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####