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-v2-13-7/MIPLIB/miplib/normalized-mps-v2-13-7-cracpb1.opb
MD5SUM098fe473d82d5f7d4121673eb775be76
Bench Categoryoptimization, small integers (OPTSMALLINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 22199
Optimality of the best value was proved NO
Number of terms in the objective function 572
Biggest coefficient in the objective function 5000
Number of bits for the biggest coefficient in the objective function 13
Sum of the numbers in the objective function 547769
Number of bits of the sum of numbers in the objective function 20
Biggest number in a constraint 5000
Number of bits of the biggest number in a constraint 13
Biggest sum of numbers in a constraint 547769
Number of bits of the biggest sum of numbers20
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark30.8603
Number of variables572
Total number of constraints716
Number of constraints which are clauses3
Number of constraints which are cardinality constraints (but not clauses)644
Number of constraints which are nor clauses,nor cardinality constraints69
Minimum length of a constraint1
Maximum length of a constraint518

Trace number 35519 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc25 THE 2005-05-28 13:20:56 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24817 boxname=wulflinc25 idbench=1289 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  098fe473d82d5f7d4121673eb775be76  /oldhome/oroussel/tmp/wulflinc25/normalized-mps-v2-13-7-cracpb1.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc25/normalized-mps-v2-13-7-cracpb1.opb
IDLAUNCH: 24817
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.220
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	: 3
cpu MHz		: 451.220
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	: 901.12

/proc/meminfo:
MemTotal:      1034660 kB
MemFree:        711040 kB
Buffers:         35060 kB
Cached:         268324 kB
SwapCached:        984 kB
Active:          25044 kB
Inactive:       280416 kB
HighTotal:      131008 kB
HighFree:          280 kB
LowTotal:       903652 kB
LowFree:        710760 kB
SwapTotal:     2097892 kB
SwapFree:      2095996 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5060 kB
Slab:            12540 kB
Committed_AS:    63604 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-28 13:22:42 (client local time) WITH STATUS 1 IN 105.564 SECONDS
stats: 24817 7 105.564 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): 0.90 0.93 0.90 2/54 10200
Raw data (stat): 10200 (runsolver) R 10199 1586 1585 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 865133930 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+10.0004 s]
Raw data (loadavg): 0.92 0.93 0.90 2/54 10200
Raw data (stat): 10200 (pb2sat) R 10199 1586 1585 0 -1 0 30836 0 0 0 934 65 0 0 25 0 1 0 865133930 92164096 19675 4294967295 134512640 135726644 3221224576 3221094912 134554787 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 22501 19675 300 300 0 22201 0
vsize: 90004
[startup+20.001 s]
Raw data (loadavg): 0.93 0.93 0.91 2/54 10200
Raw data (stat): 10200 (pb2sat) R 10199 1586 1585 0 -1 0 59824 0 0 0 1871 128 0 0 25 0 1 0 865133930 179339264 37443 4294967295 134512640 135726644 3221224576 3221017152 134557121 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 43784 37443 300 300 0 43484 0
vsize: 175136
[startup+30.0016 s]
Raw data (loadavg): 0.94 0.94 0.91 2/54 10200
Raw data (stat): 10200 (pb2sat) R 10199 1586 1585 0 -1 0 98839 0 0 0 2795 204 0 0 25 0 1 0 865133930 297562112 54265 4294967295 134512640 135726644 3221224576 3221028928 134554691 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 72647 54265 300 300 0 72347 0
vsize: 290588
[startup+40.0022 s]
Raw data (loadavg): 0.95 0.94 0.91 2/54 10200
Raw data (stat): 10200 (pb2sat) R 10199 1586 1585 0 -1 0 116935 0 0 0 3756 243 0 0 25 0 1 0 865133930 352202752 72129 4294967295 134512640 135726644 3221224576 3221179680 134783186 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 85987 72129 300 300 0 85687 0
vsize: 343948
[startup+50.0024 s]
Raw data (loadavg): 0.96 0.94 0.91 2/54 10200
Raw data (stat): 10200 (pb2sat) R 10199 1586 1585 0 -1 0 161299 0 0 0 4674 325 0 0 25 0 1 0 865133930 562130944 115301 4294967295 134512640 135726644 3221224576 3221032112 135280560 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 137239 115301 300 300 0 136939 0
vsize: 548956
[startup+60.0024 s]
Raw data (loadavg): 0.96 0.94 0.91 2/54 10200
Raw data (stat): 10200 (pb2sat) R 10199 1586 1585 0 -1 0 195870 0 0 0 5597 403 0 0 25 0 1 0 865133930 595681280 106703 4294967295 134512640 135726644 3221224576 3221085232 134766386 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 145430 106703 300 300 0 145130 0
vsize: 581720
[startup+70.0031 s]
Raw data (loadavg): 0.97 0.94 0.91 2/54 10200
Raw data (stat): 10200 (pb2sat) R 10199 1586 1585 0 -1 0 207390 0 0 0 6570 429 0 0 25 0 1 0 865133930 629235712 118019 4294967295 134512640 135726644 3221224576 3221166092 134604449 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 153622 118019 300 300 0 153322 0
vsize: 614488
[startup+80.0037 s]
Raw data (loadavg): 0.97 0.94 0.91 2/54 10200
Raw data (stat): 10200 (pb2sat) R 10199 1586 1585 0 -1 0 227416 0 0 0 7531 469 0 0 25 0 1 0 865133930 656674816 137811 4294967295 134512640 135726644 3221224576 3221049992 135287557 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 160321 137811 300 300 0 160021 0
vsize: 641284
[startup+90.0042 s]
Raw data (loadavg): 0.98 0.94 0.91 2/54 10200
Raw data (stat): 10200 (pb2sat) R 10199 1586 1585 0 -1 0 245485 0 0 0 8496 504 0 0 25 0 1 0 865133930 732958720 155673 4294967295 134512640 135726644 3221224576 3221054800 134780450 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 178945 155673 300 300 0 178645 0
vsize: 715780
[startup+100.004 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 10200
Raw data (stat): 10200 (pb2sat) R 10199 1586 1585 0 -1 0 264717 0 0 0 9457 542 0 0 25 0 1 0 865133930 760262656 174684 4294967295 134512640 135726644 3221224576 3221161184 134782215 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 185611 174684 300 300 0 185311 0
vsize: 742444
[startup+105.56 s]
Raw data (loadavg): 0.98 0.95 0.91 1/53 10200
Raw data (stat): 10200 (pb2sat) R 10199 1586 1585 0 -1 0 264717 0 0 0 9457 542 0 0 25 0 1 0 865133930 760262656 174684 4294967295 134512640 135726644 3221224576 3221161184 134782215 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 185611 174684 300 300 0 185311 0
vsize: 0

Child status: 1
Real time (s): 105.56
CPU time (s): 105.564
CPU user time (s): 99.7738
CPU system time (s): 5.79012
CPU usage (%): 100.004
Max. virtual memory (Kb): 742444
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####