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-mod013.opb
MD5SUMf118194cabf88b58b64a9e7aec087bc0
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 51087398
Optimality of the best value was proved NO
Number of terms in the objective function 1488
Biggest coefficient in the objective function 375272767488
Number of bits for the biggest coefficient in the objective function 39
Sum of the numbers in the objective function 12937590079727
Number of bits of the sum of numbers in the objective function 44
Biggest number in a constraint 375272767488
Number of bits of the biggest number in a constraint 39
Biggest sum of numbers in a constraint 12937590079727
Number of bits of the biggest sum of numbers44
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1260.87
Number of variables1488
Total number of constraints110
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)48
Number of constraints which are nor clauses,nor cardinality constraints62
Minimum length of a constraint1
Maximum length of a constraint240

Trace number 42408 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc6 THE 2005-06-16 06:59:06 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25628 boxname=wulflinc6 idbench=928 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  f118194cabf88b58b64a9e7aec087bc0  /oldhome/oroussel/tmp/wulflinc6/normalized-mps-v2-20-10-mod013.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc6/normalized-mps-v2-20-10-mod013.opb
IDLAUNCH: 25628
/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:        738612 kB
Buffers:         33292 kB
Cached:         240264 kB
SwapCached:       1028 kB
Active:          29524 kB
Inactive:       246272 kB
HighTotal:      131008 kB
HighFree:        15176 kB
LowTotal:       903652 kB
LowFree:        723436 kB
SwapTotal:     2097136 kB
SwapFree:      2095200 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5088 kB
Slab:            14636 kB
Committed_AS:    63848 kB
PageTables:        320 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 07:01:05 (client local time) WITH STATUS 1 IN 119.284 SECONDS
stats: 25628 7 119.284 1
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c This solver internally uses Chaff 2004.11.15 Simplified
c running zchaff...
c got solution with objective value: 96589201
c big objective detected
c trying from 0 to 511
c CONFLICT during preprocess 
c trying from 512 to 1023

	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): 0.90 0.93 0.90 2/54 15559
Raw data (stat): 15559 (runsolver) R 15558 25568 25567 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 968787369 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+10.0004 s]
Raw data (loadavg): 0.92 0.93 0.91 2/54 15559
Raw data (stat): 15559 (pb2sat-v2) R 15558 25568 25567 0 -1 0 26531 0 0 0 942 57 0 0 25 0 1 0 968787369 86155264 15514 4294967295 134512640 135730672 3221224576 3221067840 134607989 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 21034 15514 301 301 0 20733 0
vsize: 84136
[startup+20.001 s]
Raw data (loadavg): 0.93 0.94 0.91 2/54 15559
Raw data (stat): 15559 (pb2sat-v2) R 15558 25568 25567 0 -1 0 53537 0 0 0 1885 114 0 0 25 0 1 0 968787369 171573248 31297 4294967295 134512640 135730672 3221224576 3220667440 134788049 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 41888 31297 301 301 0 41587 0
vsize: 167552
[startup+30.0007 s]
Raw data (loadavg): 0.94 0.94 0.91 2/54 15559
Raw data (stat): 15559 (pb2sat-v2) R 15558 25568 25567 0 -1 0 80234 0 0 0 2828 171 0 0 25 0 1 0 968787369 241086464 48069 4294967295 134512640 135730672 3221224576 3221019916 134608033 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 58859 48069 301 301 0 58558 0
vsize: 235436
[startup+40.001 s]
Raw data (loadavg): 0.95 0.94 0.91 2/54 15559
Raw data (stat): 15559 (pb2sat-v2) R 15558 25568 25567 0 -1 0 106964 0 0 0 3770 230 0 0 25 0 1 0 968787369 313044992 60759 4294967295 134512640 135730672 3221224576 3221222880 134787414 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 76427 60759 301 301 0 76126 0
vsize: 305708
[startup+50.0013 s]
Raw data (loadavg): 0.96 0.94 0.91 2/54 15559
Raw data (stat): 15559 (pb2sat-v2) R 15558 25568 25567 0 -1 0 119378 0 0 0 4737 263 0 0 25 0 1 0 968787369 362516480 73165 4294967295 134512640 135730672 3221224576 3220620548 135281249 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 88505 73165 301 301 0 88204 0
vsize: 354020
[startup+60.0106 s]
Raw data (loadavg): 1.04 0.96 0.91 3/57 15594
Raw data (stat): 15559 (pb2sat-v2) R 15558 25568 25567 0 -1 0 127874 0 0 0 5718 283 0 0 25 0 1 0 968787369 362516480 81440 4294967295 134512640 135730672 3221224576 3221008316 134608033 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 88505 81440 301 301 0 88204 0
vsize: 354020
[startup+70.0112 s]
Raw data (loadavg): 1.11 0.98 0.92 2/54 15612
Raw data (stat): 15559 (pb2sat-v2) R 15558 25568 25567 0 -1 0 158003 0 0 0 6656 345 0 0 25 0 1 0 968787369 459505664 91964 4294967295 134512640 135730672 3221224576 3220875184 134770759 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 112184 91964 301 301 0 111883 0
vsize: 448736
[startup+80.0117 s]
Raw data (loadavg): 1.09 0.98 0.92 2/54 15612
Raw data (stat): 15559 (pb2sat-v2) R 15558 25568 25567 0 -1 0 190705 0 0 0 7583 419 0 0 25 0 1 0 968787369 560168960 99871 4294967295 134512640 135730672 3221224576 3220888728 134787727 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 136760 99871 301 301 0 136459 0
vsize: 547040
[startup+90.0115 s]
Raw data (loadavg): 1.08 0.98 0.92 2/54 15612
Raw data (stat): 15559 (pb2sat-v2) R 15558 25568 25567 0 -1 0 205822 0 0 0 8548 454 0 0 25 0 1 0 968787369 602898432 114764 4294967295 134512640 135730672 3221224576 3220617752 135285983 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 147192 114764 301 301 0 146891 0
vsize: 588768
[startup+100.011 s]
Raw data (loadavg): 1.07 0.98 0.92 2/54 15612
Raw data (stat): 15559 (pb2sat-v2) R 15558 25568 25567 0 -1 0 224940 0 0 0 9508 494 0 0 25 0 1 0 968787369 633749504 133639 4294967295 134512640 135730672 3221224576 3220908688 134607973 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 154724 133641 301 301 0 154423 0
vsize: 618896
[startup+110.011 s]
Raw data (loadavg): 1.06 0.98 0.92 2/54 15612
Raw data (stat): 15559 (pb2sat-v2) R 15558 25568 25567 0 -1 0 241334 0 0 0 10473 529 0 0 25 0 1 0 968787369 685027328 149824 4294967295 134512640 135730672 3221224576 3221137976 135285983 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 167243 149825 301 301 0 166942 0
vsize: 668972
[startup+119.26 s]
Raw data (loadavg): 1.05 0.98 0.92 1/53 15612
Raw data (stat): 15559 (pb2sat-v2) R 15558 25568 25567 0 -1 0 241334 0 0 0 10473 529 0 0 25 0 1 0 968787369 685027328 149824 4294967295 134512640 135730672 3221224576 3221137976 135285983 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 167243 149825 301 301 0 166942 0
vsize: 0

Child status: 1
Real time (s): 119.259
CPU time (s): 119.284
CPU user time (s): 113.675
CPU system time (s): 5.60915
CPU usage (%): 100.02
Max. virtual memory (Kb): 668972
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####