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-p0291.opb
MD5SUM1d9168a9335e29df835d07b0bdf2adea
Bench Categoryoptimization, medium integers (OPTMEDINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 10447498
Optimality of the best value was proved NO
Number of terms in the objective function 289
Biggest coefficient in the objective function 80000000
Number of bits for the biggest coefficient in the objective function 27
Sum of the numbers in the objective function 686518451
Number of bits of the sum of numbers in the objective function 30
Biggest number in a constraint 80000000
Number of bits of the biggest number in a constraint 27
Biggest sum of numbers in a constraint 686518451
Number of bits of the biggest sum of numbers30
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.333948
Number of variables291
Total number of constraints543
Number of constraints which are clauses189
Number of constraints which are cardinality constraints (but not clauses)295
Number of constraints which are nor clauses,nor cardinality constraints59
Minimum length of a constraint1
Maximum length of a constraint53

Trace number 35554 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc29 THE 2005-05-28 13:23:20 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24847 boxname=wulflinc29 idbench=1319 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  1d9168a9335e29df835d07b0bdf2adea  /oldhome/oroussel/tmp/wulflinc29/normalized-mps-v2-13-7-p0291.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc29/normalized-mps-v2-13-7-p0291.opb
IDLAUNCH: 24847
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.020
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		: 451.020
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:        733300 kB
Buffers:         34848 kB
Cached:         241552 kB
SwapCached:        632 kB
Active:          16708 kB
Inactive:       261748 kB
HighTotal:      131008 kB
HighFree:        22008 kB
LowTotal:       903652 kB
LowFree:        711292 kB
SwapTotal:     2097892 kB
SwapFree:      2096368 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5132 kB
Slab:            17080 kB
Committed_AS:    63604 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-28 13:25:12 (client local time) WITH STATUS 1 IN 111.99 SECONDS
stats: 24847 7 111.99 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 0.95 0.91 2/54 29213
Raw data (stat): 29213 (runsolver) R 29212 20001 20000 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 865128875 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+10.0008 s]
Raw data (loadavg): 0.94 0.95 0.91 2/54 29213
Raw data (stat): 29213 (pb2sat) R 29212 20001 20000 0 -1 0 29461 0 0 0 934 65 0 0 25 0 1 0 865128875 89772032 18322 4294967295 134512640 135726644 3221224576 3221109596 135297990 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 21917 18322 300 300 0 21617 0
vsize: 87668
[startup+20.0013 s]
Raw data (loadavg): 0.95 0.96 0.91 2/54 29213
Raw data (stat): 29213 (pb2sat) R 29212 20001 20000 0 -1 0 57948 0 0 0 1879 120 0 0 25 0 1 0 865128875 176271360 35592 4294967295 134512640 135726644 3221224576 3221119032 135282351 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 43035 35592 300 300 0 42735 0
vsize: 172140
[startup+30.0014 s]
Raw data (loadavg): 0.95 0.96 0.91 2/54 29213
Raw data (stat): 29213 (pb2sat) R 29212 20001 20000 0 -1 0 97352 0 0 0 2805 194 0 0 25 0 1 0 865128875 297889792 52808 4294967295 134512640 135726644 3221224576 3221119752 134784091 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 72727 52808 300 300 0 72427 0
vsize: 290908
[startup+40.0011 s]
Raw data (loadavg): 0.96 0.96 0.91 2/54 29213
Raw data (stat): 29213 (pb2sat) R 29212 20001 20000 0 -1 0 113612 0 0 0 3773 226 0 0 25 0 1 0 865128875 347537408 68840 4294967295 134512640 135726644 3221224576 3221119664 134767123 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 84848 68841 300 300 0 84548 0
vsize: 339392
[startup+50.0018 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 29213
Raw data (stat): 29213 (pb2sat) R 29212 20001 20000 0 -1 0 148476 0 0 0 4714 286 0 0 25 0 1 0 865128875 544006144 102909 4294967295 134512640 135726644 3221224576 3221127760 134771789 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 132814 102912 300 300 0 132514 0
vsize: 531256
[startup+60.0017 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 29213
Raw data (stat): 29213 (pb2sat) R 29212 20001 20000 0 -1 0 192631 0 0 0 5621 379 0 0 25 0 1 0 865128875 594452480 103500 4294967295 134512640 135726644 3221224576 3221120624 134728630 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 145130 103501 300 300 0 144830 0
vsize: 580520
[startup+70.0025 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 29213
Raw data (stat): 29213 (pb2sat) R 29212 20001 20000 0 -1 0 203569 0 0 0 6600 399 0 0 25 0 1 0 865128875 628006912 114241 4294967295 134512640 135726644 3221224576 3221124864 134767136 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 153322 114241 300 300 0 153022 0
vsize: 613288
[startup+80.003 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 29213
Raw data (stat): 29213 (pb2sat) R 29212 20001 20000 0 -1 0 221512 0 0 0 7569 431 0 0 25 0 1 0 865128875 650227712 131962 4294967295 134512640 135726644 3221224576 3221118928 134554711 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 158747 131962 300 300 0 158447 0
vsize: 634988
[startup+90.0031 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 29213
Raw data (stat): 29213 (pb2sat) R 29212 20001 20000 0 -1 0 241729 0 0 0 8531 469 0 0 25 0 1 0 865128875 679776256 151942 4294967295 134512640 135726644 3221224576 3221121832 134607249 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 165961 151942 300 300 0 165661 0
vsize: 663844
[startup+100.004 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 29213
Raw data (stat): 29213 (pb2sat) R 29212 20001 20000 0 -1 0 259018 0 0 0 9495 506 0 0 25 0 1 0 865128875 755834880 169024 4294967295 134512640 135726644 3221224576 3221114152 134784091 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 184530 169024 300 300 0 184230 0
vsize: 738120
[startup+110.004 s]
Raw data (loadavg): 0.99 0.96 0.91 2/54 29213
Raw data (stat): 29213 (pb2sat) R 29212 20001 20000 0 -1 0 262342 0 0 0 10475 526 0 0 25 0 1 0 865128875 400891904 97385 4294967295 134512640 135726644 3221224576 3221222976 134778976 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 97874 97385 300 300 0 97574 0
vsize: 391496
[startup+111.983 s]
Raw data (loadavg): 0.99 0.97 0.91 1/53 29213
Raw data (stat): 29213 (pb2sat) R 29212 20001 20000 0 -1 0 262342 0 0 0 10475 526 0 0 25 0 1 0 865128875 400891904 97385 4294967295 134512640 135726644 3221224576 3221222976 134778976 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 97874 97385 300 300 0 97574 0
vsize: 0

Child status: 1
Real time (s): 111.983
CPU time (s): 111.99
CPU user time (s): 106.524
CPU system time (s): 5.46617
CPU usage (%): 100.007
Max. virtual memory (Kb): 738120
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####