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-mzzv11.opb
MD5SUMec9eb8bc5f0ce888f87dfc271da55db8
Bench Categoryoptimization, small integers (OPTSMALLINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function -5109
Optimality of the best value was proved NO
Number of terms in the objective function 773
Biggest coefficient in the objective function 1000
Number of bits for the biggest coefficient in the objective function 10
Sum of the numbers in the objective function 76861
Number of bits of the sum of numbers in the objective function 17
Biggest number in a constraint 1999
Number of bits of the biggest number in a constraint 11
Biggest sum of numbers in a constraint 76861
Number of bits of the biggest sum of numbers17
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1189.05
Number of variables11247
Total number of constraints19739
Number of constraints which are clauses77
Number of constraints which are cardinality constraints (but not clauses)15744
Number of constraints which are nor clauses,nor cardinality constraints3918
Minimum length of a constraint1
Maximum length of a constraint68

Trace number 35205 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc21 THE 2005-05-28 12:25:57 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24513 boxname=wulflinc21 idbench=985 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  ec9eb8bc5f0ce888f87dfc271da55db8  /oldhome/oroussel/tmp/wulflinc21/normalized-mps-v2-20-10-mzzv11.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc21/normalized-mps-v2-20-10-mzzv11.opb
IDLAUNCH: 24513
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.161
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	: 890.88

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.161
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:        845832 kB
Buffers:         34440 kB
Cached:         130796 kB
SwapCached:        956 kB
Active:          54388 kB
Inactive:       112980 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        845580 kB
SwapTotal:     2097892 kB
SwapFree:      2096012 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5136 kB
Slab:            15848 kB
Committed_AS:    63916 kB
PageTables:        332 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-28 12:27:40 (client local time) WITH STATUS 1 IN 103.162 SECONDS
stats: 24513 7 103.162 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): 0.83 0.91 0.90 2/55 13941
Raw data (stat): 13941 (runsolver) R 13940 32363 32362 0 -1 64 8 0 0 0 0 0 0 0 20 0 1 0 742054468 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): 0.85 0.91 0.90 2/55 13941
Raw data (stat): 13941 (pb2sat) R 13940 32363 32362 0 -1 0 28666 0 0 0 941 58 0 0 25 0 1 0 742054468 87916544 17540 4294967295 134512640 135726644 3221224576 3221145864 135280645 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 21464 17540 300 300 0 21164 0
vsize: 85856
[startup+20.0068 s]
Raw data (loadavg): 0.87 0.91 0.90 2/55 13941
Raw data (stat): 13941 (pb2sat) R 13940 32363 32362 0 -1 0 58476 0 0 0 1880 119 0 0 25 0 1 0 742054468 175632384 36122 4294967295 134512640 135726644 3221224576 3221020640 134558878 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 42879 36122 300 300 0 42579 0
vsize: 171516
[startup+30.0065 s]
Raw data (loadavg): 0.89 0.92 0.90 2/55 13941
Raw data (stat): 13941 (pb2sat) R 13940 32363 32362 0 -1 0 99309 0 0 0 2795 205 0 0 25 0 1 0 742054468 332681216 54756 4294967295 134512640 135726644 3221224576 3221101200 134780348 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 81221 54756 300 300 0 80921 0
vsize: 324884
[startup+40.0061 s]
Raw data (loadavg): 0.91 0.92 0.90 2/55 13941
Raw data (stat): 13941 (pb2sat) R 13940 32363 32362 0 -1 0 117129 0 0 0 3757 243 0 0 25 0 1 0 742054468 349577216 72335 4294967295 134512640 135726644 3221224576 3221051692 134604449 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 85346 72335 300 300 0 85046 0
vsize: 341384
[startup+50.0068 s]
Raw data (loadavg): 0.92 0.92 0.90 2/55 13941
Raw data (stat): 13941 (pb2sat) R 13940 32363 32362 0 -1 0 163274 0 0 0 4676 324 0 0 25 0 1 0 742054468 563556352 117275 4294967295 134512640 135726644 3221224576 3221021760 134772474 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 137587 117275 300 300 0 137287 0
vsize: 550348
[startup+60.0066 s]
Raw data (loadavg): 0.93 0.92 0.90 2/55 13941
Raw data (stat): 13941 (pb2sat) R 13940 32363 32362 0 -1 0 198303 0 0 0 5600 400 0 0 25 0 1 0 742054468 630661120 109127 4294967295 134512640 135726644 3221224576 3221171600 134780348 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 153970 109127 300 300 0 153670 0
vsize: 615880
[startup+70.0071 s]
Raw data (loadavg): 0.94 0.92 0.91 2/55 13941
Raw data (stat): 13941 (pb2sat) R 13940 32363 32362 0 -1 0 211232 0 0 0 6572 428 0 0 25 0 1 0 742054468 630661120 121829 4294967295 134512640 135726644 3221224576 3221144092 134604449 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 153970 121829 300 300 0 153670 0
vsize: 615880
[startup+80.0078 s]
Raw data (loadavg): 0.95 0.93 0.91 2/55 13941
Raw data (stat): 13941 (pb2sat) R 13940 32363 32362 0 -1 0 232439 0 0 0 7526 474 0 0 25 0 1 0 742054468 660398080 142791 4294967295 134512640 135726644 3221224576 3221148492 134604488 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 161230 142791 300 300 0 160930 0
vsize: 644920
[startup+90.0075 s]
Raw data (loadavg): 0.96 0.93 0.91 2/55 13941
Raw data (stat): 13941 (pb2sat) R 13940 32363 32362 0 -1 0 249675 0 0 0 8492 509 0 0 25 0 1 0 742054468 735059968 159829 4294967295 134512640 135726644 3221224576 3221116528 134554559 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 179458 159829 300 300 0 179158 0
vsize: 717832
[startup+100.007 s]
Raw data (loadavg): 0.96 0.93 0.91 2/55 13941
Raw data (stat): 13941 (pb2sat) R 13940 32363 32362 0 -1 0 266019 0 0 0 9462 538 0 0 25 0 1 0 742054468 759222272 175985 4294967295 134512640 135726644 3221224576 3221222888 135280487 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 185357 175985 300 300 0 185057 0
vsize: 741428
[startup+103.16 s]
Raw data (loadavg): 0.97 0.93 0.91 1/54 13941
Raw data (stat): 13941 (pb2sat) R 13940 32363 32362 0 -1 0 266019 0 0 0 9462 538 0 0 25 0 1 0 742054468 759222272 175985 4294967295 134512640 135726644 3221224576 3221222888 135280487 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 185357 175985 300 300 0 185057 0
vsize: 0

Child status: 1
Real time (s): 103.159
CPU time (s): 103.162
CPU user time (s): 97.4102
CPU system time (s): 5.75213
CPU usage (%): 100.003
Max. virtual memory (Kb): 741428
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####