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/ftp.netlib.org/lp/data/normalized-mps-v2-13-7-scrs8.opb
MD5SUMf909afc4ad4c57b225953e69f0f7b926
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableNO
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of terms in the objective function 16500
Biggest coefficient in the objective function 278154827530240000
Number of bits for the biggest coefficient in the objective function 58
Sum of the numbers in the objective function 7024858555092325200
Number of bits of the sum of numbers in the objective function 63
Biggest number in a constraint 278154827530240000
Number of bits of the biggest number in a constraint 58
Biggest sum of numbers in a constraint 7024858555092325200
Number of bits of the biggest sum of numbers63
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.207967
Number of variables23380
Total number of constraints490
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints490
Minimum length of a constraint20
Maximum length of a constraint740

Trace number 35480 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc25 THE 2005-05-28 13:17:10 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24779 boxname=wulflinc25 idbench=1251 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  f909afc4ad4c57b225953e69f0f7b926  /oldhome/oroussel/tmp/wulflinc25/normalized-mps-v2-13-7-scrs8.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc25/normalized-mps-v2-13-7-scrs8.opb
IDLAUNCH: 24779
/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:        709052 kB
Buffers:         35028 kB
Cached:         269784 kB
SwapCached:        984 kB
Active:          26576 kB
Inactive:       280340 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        708800 kB
SwapTotal:     2097892 kB
SwapFree:      2095996 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5060 kB
Slab:            12900 kB
Committed_AS:    63600 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-28 13:18:58 (client local time) WITH STATUS 1 IN 108.433 SECONDS
stats: 24779 7 108.433 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 10014
Raw data (stat): 10014 (runsolver) R 10013 1586 1585 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 865111243 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+10.0022 s]
Raw data (loadavg): 0.92 0.93 0.91 2/54 10014
Raw data (stat): 10014 (pb2sat) R 10013 1586 1585 0 -1 0 19541 0 0 0 957 41 0 0 25 0 1 0 865111243 77549568 13894 4294967295 134512640 135726644 3221224576 3214603360 134771796 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 18933 13894 300 300 0 18633 0
vsize: 75732
[startup+20.0019 s]
Raw data (loadavg): 0.93 0.93 0.91 2/54 10014
Raw data (stat): 10014 (pb2sat) R 10013 1586 1585 0 -1 0 49058 0 0 0 1899 100 0 0 25 0 1 0 865111243 181899264 32915 4294967295 134512640 135726644 3221224576 3214602992 134784885 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 44409 32915 300 300 0 44109 0
vsize: 177636
[startup+30.0094 s]
Raw data (loadavg): 0.94 0.93 0.91 2/54 10014
Raw data (stat): 10014 (pb2sat) R 10013 1586 1585 0 -1 0 79448 0 0 0 2843 156 0 0 25 0 1 0 865111243 249098240 46946 4294967295 134512640 135726644 3221224576 3214603720 134554775 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 60815 46946 300 300 0 60515 0
vsize: 243260
[startup+40.0096 s]
Raw data (loadavg): 0.95 0.94 0.91 2/54 10014
Raw data (stat): 10014 (pb2sat) R 10013 1586 1585 0 -1 0 107621 0 0 0 3785 215 0 0 25 0 1 0 865111243 347987968 62581 4294967295 134512640 135726644 3221224576 3214604400 134780348 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 84958 62581 300 300 0 84658 0
vsize: 339832
[startup+50.0096 s]
Raw data (loadavg): 0.96 0.94 0.91 2/54 10014
Raw data (stat): 10014 (pb2sat) R 10013 1586 1585 0 -1 0 137469 0 0 0 4728 272 0 0 25 0 1 0 865111243 537477120 91514 4294967295 134512640 135726644 3221224576 3214606892 135287558 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 131220 91514 300 300 0 130920 0
vsize: 524880
[startup+60.0093 s]
Raw data (loadavg): 0.96 0.94 0.91 2/54 10014
Raw data (stat): 10014 (pb2sat) R 10013 1586 1585 0 -1 0 162610 0 0 0 5679 321 0 0 25 0 1 0 865111243 488464384 96302 4294967295 134512640 135726644 3221224576 3214603232 134766504 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 119254 96302 300 300 0 118954 0
vsize: 477016
[startup+70.0093 s]
Raw data (loadavg): 0.97 0.94 0.91 2/54 10014
Raw data (stat): 10014 (pb2sat) R 10013 1586 1585 0 -1 0 199951 0 0 0 6598 402 0 0 25 0 1 0 865111243 595615744 108843 4294967295 134512640 135726644 3221224576 3214604440 135282351 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 145414 108843 300 300 0 145114 0
vsize: 581656
[startup+80.0095 s]
Raw data (loadavg): 0.97 0.94 0.91 2/54 10014
Raw data (stat): 10014 (pb2sat) R 10013 1586 1585 0 -1 0 217116 0 0 0 7564 436 0 0 25 0 1 0 865111243 655347712 125790 4294967295 134512640 135726644 3221224576 3214602892 134604415 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 159997 125790 300 300 0 159697 0
vsize: 639988
[startup+90.0091 s]
Raw data (loadavg): 0.98 0.94 0.91 2/54 10014
Raw data (stat): 10014 (pb2sat) R 10013 1586 1585 0 -1 0 237796 0 0 0 8526 474 0 0 25 0 1 0 865111243 688955392 145674 4294967295 134512640 135726644 3221224576 3214609492 134809992 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 168202 145674 300 300 0 167902 0
vsize: 672808
[startup+100.117 s]
Raw data (loadavg): 0.98 0.94 0.91 2/54 10014
Raw data (stat): 10014 (pb2sat) R 10013 1586 1585 0 -1 0 250818 0 0 0 9514 497 0 0 25 0 1 0 865111243 709976064 158229 4294967295 134512640 135726644 3221224576 3221222704 135279084 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 173334 158229 300 300 0 173034 0
vsize: 693336
[startup+108.433 s]
Raw data (loadavg): 0.98 0.95 0.91 1/53 10014
Raw data (stat): 10014 (pb2sat) R 10013 1586 1585 0 -1 0 250818 0 0 0 9514 497 0 0 25 0 1 0 865111243 709976064 158229 4294967295 134512640 135726644 3221224576 3221222704 135279084 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 173334 158229 300 300 0 173034 0
vsize: 0

Child status: 1
Real time (s): 108.433
CPU time (s): 108.433
CPU user time (s): 103.126
CPU system time (s): 5.30619
CPU usage (%): 99.9996
Max. virtual memory (Kb): 693336
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####