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-afiro.opb
MD5SUMb9a386a980af3ebe560fd16ca36e17ae
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function -1486831
Optimality of the best value was proved NO
Number of terms in the objective function 100
Biggest coefficient in the objective function 131072000
Number of bits for the biggest coefficient in the objective function 27
Sum of the numbers in the objective function 309329625
Number of bits of the sum of numbers in the objective function 29
Biggest number in a constraint 1273495552
Number of bits of the biggest number in a constraint 31
Biggest sum of numbers in a constraint 20473426875
Number of bits of the biggest sum of numbers35
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark484.119
Number of variables640
Total number of constraints27
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 constraints27
Minimum length of a constraint20
Maximum length of a constraint180

Trace number 35409

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc25 THE 2005-05-28 13:07:07 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24717 boxname=wulflinc25 idbench=1189 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  b9a386a980af3ebe560fd16ca36e17ae  /oldhome/oroussel/tmp/wulflinc25/normalized-mps-v2-13-7-afiro.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc25/normalized-mps-v2-13-7-afiro.opb
IDLAUNCH: 24717
/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:        738036 kB
Buffers:         34948 kB
Cached:         241508 kB
SwapCached:        984 kB
Active:          23680 kB
Inactive:       254848 kB
HighTotal:      131008 kB
HighFree:         8204 kB
LowTotal:       903652 kB
LowFree:        729832 kB
SwapTotal:     2097892 kB
SwapFree:      2095996 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5060 kB
Slab:            12432 kB
Committed_AS:    63604 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-28 13:08:57 (client local time) WITH STATUS 1 IN 109.421 SECONDS
stats: 24717 7 109.421 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 0.97 0.91 2/54 9549
Raw data (stat): 9549 (runsolver) R 9548 1586 1585 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 865051014 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+10.0004 s]
Raw data (loadavg): 0.93 0.97 0.91 2/54 9549
Raw data (stat): 9549 (pb2sat) R 9548 1586 1585 0 -1 0 28086 0 0 0 938 61 0 0 25 0 1 0 865051014 80859136 17114 4294967295 134512640 135726644 3221224576 3221150696 134784091 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 19741 17114 300 300 0 19441 0
vsize: 78964
[startup+20.0002 s]
Raw data (loadavg): 0.94 0.97 0.91 2/54 9549
Raw data (stat): 9549 (pb2sat) R 9548 1586 1585 0 -1 0 56438 0 0 0 1884 114 0 0 25 0 1 0 865051014 167120896 34504 4294967295 134512640 135726644 3221224576 3221156296 135282351 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 40801 34505 300 300 0 40501 0
vsize: 163204
[startup+30.0008 s]
Raw data (loadavg): 0.95 0.97 0.91 2/54 9549
Raw data (stat): 9549 (pb2sat) R 9548 1586 1585 0 -1 0 94631 0 0 0 2811 187 0 0 25 0 1 0 865051014 283942912 51022 4294967295 134512640 135726644 3221224576 3221159496 134784091 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 69322 51023 300 300 0 69022 0
vsize: 277288
[startup+40.0002 s]
Raw data (loadavg): 0.95 0.97 0.91 2/54 9549
Raw data (stat): 9549 (pb2sat) R 9548 1586 1585 0 -1 0 111841 0 0 0 3775 223 0 0 25 0 1 0 865051014 337502208 68006 4294967295 134512640 135726644 3221224576 3221162256 134554834 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 82398 68006 300 300 0 82098 0
vsize: 329592
[startup+50.0001 s]
Raw data (loadavg): 0.96 0.97 0.91 2/54 9549
Raw data (stat): 9549 (pb2sat) R 9548 1586 1585 0 -1 0 154006 0 0 0 4696 303 0 0 25 0 1 0 865051014 544460800 109073 4294967295 134512640 135726644 3221224576 3221163704 135282351 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 132925 109076 300 300 0 132625 0
vsize: 531700
[startup+60.0006 s]
Raw data (loadavg): 0.97 0.97 0.91 2/54 9549
Raw data (stat): 9549 (pb2sat) R 9548 1586 1585 0 -1 0 190731 0 0 0 5618 381 0 0 25 0 1 0 865051014 586534912 103557 4294967295 134512640 135726644 3221224576 3221167102 134773955 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 143197 103557 300 300 0 142897 0
vsize: 572788
[startup+70 s]
Raw data (loadavg): 0.97 0.97 0.91 2/54 9549
Raw data (stat): 9549 (pb2sat) R 9548 1586 1585 0 -1 0 202182 0 0 0 6596 403 0 0 25 0 1 0 865051014 620089344 114802 4294967295 134512640 135726644 3221224576 3221169872 134554711 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 151389 114802 300 300 0 151089 0
vsize: 605556
[startup+80.0009 s]
Raw data (loadavg): 0.97 0.97 0.91 2/54 9549
Raw data (stat): 9549 (pb2sat) R 9548 1586 1585 0 -1 0 221087 0 0 0 7559 440 0 0 25 0 1 0 865051014 642666496 133465 4294967295 134512640 135726644 3221224576 3221171836 134604449 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 156901 133467 300 300 0 156601 0
vsize: 627604
[startup+90.0006 s]
Raw data (loadavg): 0.98 0.97 0.91 2/54 9549
Raw data (stat): 9549 (pb2sat) R 9548 1586 1585 0 -1 0 241631 0 0 0 8519 480 0 0 25 0 1 0 865051014 722743296 153769 4294967295 134512640 135726644 3221224576 3221175344 134780348 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 176451 153769 300 300 0 176151 0
vsize: 705804
[startup+100 s]
Raw data (loadavg): 0.98 0.97 0.91 2/54 9549
Raw data (stat): 9549 (pb2sat) R 9548 1586 1585 0 -1 0 258033 0 0 0 9487 513 0 0 25 0 1 0 865051014 747335680 169980 4294967295 134512640 135726644 3221224576 3221222500 134541622 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 182455 169980 300 300 0 182155 0
vsize: 729820
[startup+109.419 s]
Raw data (loadavg): 0.98 0.97 0.91 1/53 9549
Raw data (stat): 9549 (pb2sat) R 9548 1586 1585 0 -1 0 258033 0 0 0 9487 513 0 0 25 0 1 0 865051014 747335680 169980 4294967295 134512640 135726644 3221224576 3221222500 134541622 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 182455 169980 300 300 0 182155 0
vsize: 0

Child status: 1
Real time (s): 109.419
CPU time (s): 109.421
CPU user time (s): 103.94
CPU system time (s): 5.48117
CPU usage (%): 100.002
Max. virtual memory (Kb): 729820
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####