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/miplib3/normalized-mps-v2-20-10-mod010.opb
MD5SUMef7064a9be2b712276f7b600af28e2b0
Bench Categoryoptimization, small integers (OPTSMALLINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 6571
Optimality of the best value was proved NO
Number of terms in the objective function 2655
Biggest coefficient in the objective function 266
Number of bits for the biggest coefficient in the objective function 9
Sum of the numbers in the objective function 489211
Number of bits of the sum of numbers in the objective function 19
Biggest number in a constraint 266
Number of bits of the biggest number in a constraint 9
Biggest sum of numbers in a constraint 489211
Number of bits of the biggest sum of numbers19
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1176.54
Number of variables2655
Total number of constraints2801
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)2800
Number of constraints which are nor clauses,nor cardinality constraints1
Minimum length of a constraint1
Maximum length of a constraint2655

Trace number 35270 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc23 THE 2005-05-28 12:37:37 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24578 boxname=wulflinc23 idbench=1050 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  ef7064a9be2b712276f7b600af28e2b0  /oldhome/oroussel/tmp/wulflinc23/normalized-mps-v2-20-10-mod010.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc23/normalized-mps-v2-20-10-mod010.opb
IDLAUNCH: 24578
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.037
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		: 451.037
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:        762880 kB
Buffers:         32840 kB
Cached:         218468 kB
SwapCached:        700 kB
Active:          48488 kB
Inactive:       204956 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        762628 kB
SwapTotal:     2097136 kB
SwapFree:      2095556 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5028 kB
Slab:            12708 kB
Committed_AS:    63600 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-28 12:39:24 (client local time) WITH STATUS 1 IN 106.188 SECONDS
stats: 24578 7 106.188 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): 0.91 0.94 0.90 2/54 9228
Raw data (stat): 9228 (runsolver) R 9227 5562 5561 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 864861556 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+10.0006 s]
Raw data (loadavg): 0.92 0.94 0.91 2/54 9228
Raw data (stat): 9228 (pb2sat) R 9227 5562 5561 0 -1 0 29134 0 0 0 937 62 0 0 25 0 1 0 864861556 90779648 17988 4294967295 134512640 135726644 3221224576 3220869728 134554579 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 22163 17988 300 300 0 21863 0
vsize: 88652
[startup+20.0019 s]
Raw data (loadavg): 0.93 0.94 0.91 2/54 9228
Raw data (stat): 9228 (pb2sat) R 9227 5562 5561 0 -1 0 58004 0 0 0 1876 123 0 0 25 0 1 0 864861556 177954816 35629 4294967295 134512640 135726644 3221224576 3220169328 134554691 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 43446 35629 300 300 0 43146 0
vsize: 173784
[startup+30.0018 s]
Raw data (loadavg): 0.94 0.94 0.91 2/54 9228
Raw data (stat): 9228 (pb2sat) R 9227 5562 5561 0 -1 0 96621 0 0 0 2794 205 0 0 25 0 1 0 864861556 295501824 52052 4294967295 134512640 135726644 3221224576 3221010180 134608973 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 72144 52052 300 300 0 71844 0
vsize: 288576
[startup+40.0025 s]
Raw data (loadavg): 0.95 0.95 0.91 2/54 9228
Raw data (stat): 9228 (pb2sat) R 9227 5562 5561 0 -1 0 114360 0 0 0 3756 243 0 0 25 0 1 0 864861556 349331456 69555 4294967295 134512640 135726644 3221224576 3220491392 134784502 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 85286 69555 300 300 0 84986 0
vsize: 341144
[startup+50.0037 s]
Raw data (loadavg): 0.96 0.95 0.91 2/54 9228
Raw data (stat): 9228 (pb2sat) R 9227 5562 5561 0 -1 0 157558 0 0 0 4670 329 0 0 25 0 1 0 864861556 556146688 111585 4294967295 134512640 135726644 3221224576 3220433324 135297998 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 135778 111585 300 300 0 135478 0
vsize: 543112
[startup+60.0038 s]
Raw data (loadavg): 0.96 0.95 0.91 2/54 9228
Raw data (stat): 9228 (pb2sat) R 9227 5562 5561 0 -1 0 192302 0 0 0 5590 409 0 0 25 0 1 0 864861556 590508032 103141 4294967295 134512640 135726644 3221224576 3221059712 134554799 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 144167 103141 300 300 0 143867 0
vsize: 576668
[startup+70.0045 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 9228
Raw data (stat): 9228 (pb2sat) R 9227 5562 5561 0 -1 0 204093 0 0 0 6562 438 0 0 25 0 1 0 864861556 624062464 114721 4294967295 134512640 135726644 3221224576 3220799792 134784413 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 152359 114721 300 300 0 152059 0
vsize: 609436
[startup+80.0058 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 9228
Raw data (stat): 9228 (pb2sat) R 9227 5562 5561 0 -1 0 224514 0 0 0 7517 483 0 0 25 0 1 0 864861556 653934592 134911 4294967295 134512640 135726644 3221224576 3220661092 134810005 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 159652 134911 300 300 0 159352 0
vsize: 638608
[startup+90.0057 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 9228
Raw data (stat): 9228 (pb2sat) R 9227 5562 5561 0 -1 0 245000 0 0 0 8470 530 0 0 25 0 1 0 864861556 684077056 155164 4294967295 134512640 135726644 3221224576 3221050528 134554752 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 167011 155164 300 300 0 166711 0
vsize: 668044
[startup+100.005 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 9228
Raw data (stat): 9228 (pb2sat) R 9227 5562 5561 0 -1 0 261292 0 0 0 9433 567 0 0 25 0 1 0 864861556 758333440 171271 4294967295 134512640 135726644 3221224576 3221005424 134604377 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 185140 171271 300 300 0 184840 0
vsize: 740560
[startup+106.183 s]
Raw data (loadavg): 0.98 0.95 0.91 1/53 9228
Raw data (stat): 9228 (pb2sat) R 9227 5562 5561 0 -1 0 261292 0 0 0 9433 567 0 0 25 0 1 0 864861556 758333440 171271 4294967295 134512640 135726644 3221224576 3221005424 134604377 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 185140 171271 300 300 0 184840 0
vsize: 0

Child status: 1
Real time (s): 106.182
CPU time (s): 106.188
CPU user time (s): 100.13
CPU system time (s): 6.05808
CPU usage (%): 100.005
Max. virtual memory (Kb): 740560
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####