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-bell3a.opb
MD5SUM20897ed4b3cd94cc1a84b64d339b40e4
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 2147483647
Optimality of the best value was proved NO
Number of terms in the objective function 1716
Biggest coefficient in the objective function 5134096531456000
Number of bits for the biggest coefficient in the objective function 53
Sum of the numbers in the objective function 216401520151185266
Number of bits of the sum of numbers in the objective function 58
Biggest number in a constraint 5134096531456000
Number of bits of the biggest number in a constraint 53
Biggest sum of numbers in a constraint 216401520151185266
Number of bits of the biggest sum of numbers58
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1252.45
Number of variables2219
Total number of constraints194
Number of constraints which are clauses22
Number of constraints which are cardinality constraints (but not clauses)39
Number of constraints which are nor clauses,nor cardinality constraints133
Minimum length of a constraint1
Maximum length of a constraint191

Trace number 35128 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc9 THE 2005-05-28 12:17:02 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24428 boxname=wulflinc9 idbench=900 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  20897ed4b3cd94cc1a84b64d339b40e4  /oldhome/oroussel/tmp/wulflinc9/normalized-mps-v2-20-10-bell3a.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc9/normalized-mps-v2-20-10-bell3a.opb
IDLAUNCH: 24428
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.242
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		: 451.242
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:        698844 kB
Buffers:         35368 kB
Cached:         276540 kB
SwapCached:        552 kB
Active:          18724 kB
Inactive:       295256 kB
HighTotal:      131008 kB
HighFree:         4928 kB
LowTotal:       903652 kB
LowFree:        693916 kB
SwapTotal:     2097136 kB
SwapFree:      2095648 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5144 kB
Slab:            16156 kB
Committed_AS:    63588 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-28 12:18:54 (client local time) WITH STATUS 1 IN 111.702 SECONDS
stats: 24428 7 111.702 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): 0.92 0.93 0.90 2/54 18617
Raw data (stat): 18617 (runsolver) R 18616 3944 3943 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 806513041 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+10.0001 s]
Raw data (loadavg): 0.93 0.94 0.91 2/54 18617
Raw data (stat): 18617 (pb2sat) R 18616 3944 3943 0 -1 0 29389 0 0 0 940 59 0 0 25 0 1 0 806513041 90460160 18245 4294967295 134512640 135726644 3221224576 3220518616 134728614 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 22085 18245 300 300 0 21785 0
vsize: 88340
[startup+19.9997 s]
Raw data (loadavg): 0.94 0.94 0.91 2/54 18617
Raw data (stat): 18617 (pb2sat) R 18616 3944 3943 0 -1 0 57479 0 0 0 1887 111 0 0 25 0 1 0 806513041 176627712 35117 4294967295 134512640 135726644 3221224576 3220520552 134784091 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 43122 35117 300 300 0 42822 0
vsize: 172488
[startup+30.0009 s]
Raw data (loadavg): 0.95 0.94 0.91 2/54 18617
Raw data (stat): 18617 (pb2sat) R 18616 3944 3943 0 -1 0 96339 0 0 0 2814 184 0 0 25 0 1 0 806513041 296239104 51785 4294967295 134512640 135726644 3221224576 3220522492 134604449 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 72324 51786 300 300 0 72024 0
vsize: 289296
[startup+40.0003 s]
Raw data (loadavg): 0.95 0.94 0.91 2/54 18617
Raw data (stat): 18617 (pb2sat) R 18616 3944 3943 0 -1 0 113104 0 0 0 3783 215 0 0 25 0 1 0 806513041 348696576 68318 4294967295 134512640 135726644 3221224576 3220520912 134554611 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 85131 68318 300 300 0 84831 0
vsize: 340524
[startup+50.0011 s]
Raw data (loadavg): 0.96 0.94 0.91 2/54 18617
Raw data (stat): 18617 (pb2sat) R 18616 3944 3943 0 -1 0 153142 0 0 0 4712 286 0 0 25 0 1 0 806513041 551186432 107312 4294967295 134512640 135726644 3221224576 3220521760 134771705 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 134567 107314 300 300 0 134267 0
vsize: 538268
[startup+60.0011 s]
Raw data (loadavg): 0.97 0.94 0.91 2/54 18617
Raw data (stat): 18617 (pb2sat) R 18616 3944 3943 0 -1 0 190941 0 0 0 5634 365 0 0 25 0 1 0 806513041 591499264 101741 4294967295 134512640 135726644 3221224576 3220524364 135287432 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 144409 101742 300 300 0 144109 0
vsize: 577636
[startup+70.0006 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 18617
Raw data (stat): 18617 (pb2sat) R 18616 3944 3943 0 -1 0 201834 0 0 0 6611 388 0 0 25 0 1 0 806513041 625053696 112431 4294967295 134512640 135726644 3221224576 3220523264 134739447 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 152601 112431 300 300 0 152301 0
vsize: 610404
[startup+80.0014 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 18617
Raw data (stat): 18617 (pb2sat) R 18616 3944 3943 0 -1 0 221350 0 0 0 7575 424 0 0 25 0 1 0 806513041 653393920 131706 4294967295 134512640 135726644 3221224576 3220528552 134784091 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 159520 131706 300 300 0 159220 0
vsize: 638080
[startup+90.0011 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 18617
Raw data (stat): 18617 (pb2sat) R 18616 3944 3943 0 -1 0 241229 0 0 0 8545 454 0 0 25 0 1 0 806513041 683520000 151351 4294967295 134512640 135726644 3221224576 3220527436 134604400 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 166875 151352 300 300 0 166575 0
vsize: 667500
[startup+100.001 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 18617
Raw data (stat): 18617 (pb2sat) R 18616 3944 3943 0 -1 0 256690 0 0 0 9516 484 0 0 25 0 1 0 806513041 757190656 166629 4294967295 134512640 135726644 3221224576 3220530152 135282351 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 184861 166629 300 300 0 184561 0
vsize: 739444
[startup+110.001 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 18617
Raw data (stat): 18617 (pb2sat) R 18616 3944 3943 0 -1 0 258579 0 0 0 10497 501 0 0 25 0 1 0 806513041 398528512 96777 4294967295 134512640 135726644 3221224576 3221222976 134778976 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 97297 96777 300 300 0 96997 0
vsize: 389188
[startup+111.709 s]
Raw data (loadavg): 0.98 0.95 0.91 1/53 18617
Raw data (stat): 18617 (pb2sat) R 18616 3944 3943 0 -1 0 258579 0 0 0 10497 501 0 0 25 0 1 0 806513041 398528512 96777 4294967295 134512640 135726644 3221224576 3221222976 134778976 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 97297 96777 300 300 0 96997 0
vsize: 0

Child status: 1
Real time (s): 111.709
CPU time (s): 111.702
CPU user time (s): 106.485
CPU system time (s): 5.21721
CPU usage (%): 99.9937
Max. virtual memory (Kb): 739444
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####