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/miplib2003/normalized-mps-v2-20-10-misc07.opb
MD5SUMb8ad25b48a93aa2545086c9eaeaee0ef
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 1076879360
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 benchmark1227.3
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 42456 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc1 THE 2005-06-16 08:07:39 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25677 boxname=wulflinc1 idbench=977 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  b8ad25b48a93aa2545086c9eaeaee0ef  /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-20-10-misc07.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-20-10-misc07.opb
IDLAUNCH: 25677
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.053
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		: 451.053
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:        709468 kB
Buffers:         33480 kB
Cached:         267520 kB
SwapCached:       1192 kB
Active:          35212 kB
Inactive:       268120 kB
HighTotal:      131008 kB
HighFree:         4200 kB
LowTotal:       903652 kB
LowFree:        705268 kB
SwapTotal:     2097136 kB
SwapFree:      2094880 kB
Dirty:              36 kB
Writeback:           0 kB
Mapped:           5364 kB
Slab:            16008 kB
Committed_AS:    92716 kB
PageTables:        332 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 08:09:30 (client local time) WITH STATUS 1 IN 111.399 SECONDS
stats: 25677 7 111.399 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): 0.98 0.97 0.91 2/55 16528
Raw data (stat): 16528 (runsolver) R 16527 8378 8377 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 912342524 884736 94 4294967295 134512640 135332820 3221224464 3221219644 135092226 0 2147483391 7 90112 0 0 0 17 0 0 0
Raw data (statm): 216 94 205 205 0 11 0
vsize: 864
[startup+10.0001 s]
Raw data (loadavg): 0.98 0.97 0.91 2/55 16528
Raw data (stat): 16528 (pb2sat-v2) R 16527 8378 8377 0 -1 0 29512 0 0 0 942 57 0 0 25 0 1 0 912342524 89059328 18374 4294967295 134512640 135730672 3221224576 3221148824 135285983 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 21743 18374 301 301 0 21442 0
vsize: 86972
[startup+20.0009 s]
Raw data (loadavg): 0.99 0.97 0.91 2/55 16528
Raw data (stat): 16528 (pb2sat-v2) R 16527 8378 8377 0 -1 0 58213 0 0 0 1888 111 0 0 25 0 1 0 912342524 175017984 35860 4294967295 134512640 135730672 3221224576 3221152124 134608033 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 42729 35860 301 301 0 42428 0
vsize: 170916
[startup+30.0016 s]
Raw data (loadavg): 0.99 0.97 0.91 2/55 16528
Raw data (stat): 16528 (pb2sat-v2) R 16527 8378 8377 0 -1 0 98622 0 0 0 2808 191 0 0 25 0 1 0 912342524 298782720 54080 4294967295 134512640 135730672 3221224576 3221142880 134546498 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 72945 54080 301 301 0 72644 0
vsize: 291780
[startup+40.0024 s]
Raw data (loadavg): 0.99 0.97 0.91 2/55 16528
Raw data (stat): 16528 (pb2sat-v2) R 16527 8378 8377 0 -1 0 114693 0 0 0 3778 222 0 0 25 0 1 0 912342524 345989120 69926 4294967295 134512640 135730672 3221224576 3221210588 134608033 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 84470 69926 301 301 0 84169 0
vsize: 337880
[startup+50.0033 s]
Raw data (loadavg): 0.99 0.97 0.91 2/55 16528
Raw data (stat): 16528 (pb2sat-v2) R 16527 8378 8377 0 -1 0 146839 0 0 0 4718 282 0 0 25 0 1 0 912342524 537124864 101395 4294967295 134512640 135730672 3221224576 3221185928 135284337 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 131134 101395 301 301 0 130833 0
vsize: 524536
[startup+60.003 s]
Raw data (loadavg): 0.99 0.97 0.91 2/55 16528
Raw data (stat): 16528 (pb2sat-v2) R 16527 8378 8377 0 -1 0 195909 0 0 0 5617 383 0 0 25 0 1 0 912342524 596897792 106775 4294967295 134512640 135730672 3221224576 3221180428 134608025 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 145727 106775 301 301 0 145426 0
vsize: 582908
[startup+70.0038 s]
Raw data (loadavg): 0.99 0.97 0.91 2/55 16528
Raw data (stat): 16528 (pb2sat-v2) R 16527 8378 8377 0 -1 0 207589 0 0 0 6594 406 0 0 25 0 1 0 912342524 630452224 118250 4294967295 134512640 135730672 3221224576 3221151172 134549037 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 153919 118250 301 301 0 153618 0
vsize: 615676
[startup+80.0046 s]
Raw data (loadavg): 0.99 0.97 0.91 2/55 16528
Raw data (stat): 16528 (pb2sat-v2) R 16527 8378 8377 0 -1 0 225961 0 0 0 7559 441 0 0 25 0 1 0 912342524 650997760 136387 4294967295 134512640 135730672 3221224576 3221176828 134637873 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 158935 136387 301 301 0 158634 0
vsize: 635740
[startup+90.0054 s]
Raw data (loadavg): 0.99 0.97 0.91 2/55 16528
Raw data (stat): 16528 (pb2sat-v2) R 16527 8378 8377 0 -1 0 242562 0 0 0 8527 474 0 0 25 0 1 0 912342524 724713472 152797 4294967295 134512640 135730672 3221224576 3221163384 135285983 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 176932 152797 301 301 0 176631 0
vsize: 707728
[startup+100.005 s]
Raw data (loadavg): 0.99 0.97 0.91 2/55 16528
Raw data (stat): 16528 (pb2sat-v2) R 16527 8378 8377 0 -1 0 262869 0 0 0 9486 514 0 0 25 0 1 0 912342524 753504256 172871 4294967295 134512640 135730672 3221224576 3221167096 135286076 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 183961 172871 301 301 0 183660 0
vsize: 735844
[startup+110.005 s]
Raw data (loadavg): 0.99 0.97 0.91 2/55 16528
Raw data (stat): 16528 (pb2sat-v2) R 16527 8378 8377 0 -1 0 265984 0 0 0 10464 537 0 0 25 0 1 0 912342524 398155776 96776 4294967295 134512640 135730672 3221224576 3221222976 134782612 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 97206 96776 301 301 0 96905 0
vsize: 388824
[startup+111.388 s]
Raw data (loadavg): 0.99 0.97 0.91 1/54 16528
Raw data (stat): 16528 (pb2sat-v2) R 16527 8378 8377 0 -1 0 265984 0 0 0 10464 537 0 0 25 0 1 0 912342524 398155776 96776 4294967295 134512640 135730672 3221224576 3221222976 134782612 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 97206 96776 301 301 0 96905 0
vsize: 0

Child status: 1
Real time (s): 111.388
CPU time (s): 111.399
CPU user time (s): 105.816
CPU system time (s): 5.58315
CPU usage (%): 100.01
Max. virtual memory (Kb): 735844
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####