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/plato.asu.edu/pub/milp/normalized-mps-v2-13-7-neos19.opb
MD5SUM807e897c82c7100925712510cfaeeca1
Bench Categoryoptimization, small integers (OPTSMALLINT)
Has Objective FunctionYES
Satisfiable
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of terms in the objective function 1611
Biggest coefficient in the objective function 1
Number of bits for the biggest coefficient in the objective function 1
Sum of the numbers in the objective function 1611
Number of bits of the sum of numbers in the objective function 11
Biggest number in a constraint 3072
Number of bits of the biggest number in a constraint 12
Biggest sum of numbers in a constraint 12240
Number of bits of the biggest sum of numbers14
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Number of variables760312
Total number of constraints137871
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)10091
Number of constraints which are nor clauses,nor cardinality constraints127780
Minimum length of a constraint1
Maximum length of a constraint268

Trace number 35735 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc10 THE 2005-05-28 13:58:00 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25039 boxname=wulflinc10 idbench=1511 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  807e897c82c7100925712510cfaeeca1  /oldhome/oroussel/tmp/wulflinc10/normalized-mps-v2-13-7-neos19.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc10/normalized-mps-v2-13-7-neos19.opb
IDLAUNCH: 25039
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 450.999
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	: 2
cpu MHz		: 450.999
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:        592564 kB
Buffers:          7368 kB
Cached:         413808 kB
SwapCached:         84 kB
Active:          64824 kB
Inactive:       359000 kB
HighTotal:      131008 kB
HighFree:          280 kB
LowTotal:       903652 kB
LowFree:        592284 kB
SwapTotal:     2097136 kB
SwapFree:      2096728 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5880 kB
Slab:            12480 kB
Committed_AS:    63604 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-28 14:00:10 (client local time) WITH STATUS 1 IN 127.901 SECONDS
stats: 25039 7 127.901 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): 0.88 0.94 0.90 2/54 24510
Raw data (stat): 24510 (runsolver) R 24509 15547 15546 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 807133967 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+9.99992 s]
Raw data (loadavg): 0.90 0.94 0.90 2/54 24510
Raw data (stat): 24510 (pb2sat) R 24509 15547 15546 0 -1 0 134 0 0 0 996 3 0 0 25 0 1 0 807133967 1540096 124 4294967295 134512640 135726644 3221224576 3221221776 134576113 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 376 124 300 300 0 76 0
vsize: 1504
[startup+20 s]
Raw data (loadavg): 0.91 0.94 0.91 2/54 24510
Raw data (stat): 24510 (pb2sat) R 24509 15547 15546 0 -1 0 25037 0 0 0 1938 60 0 0 25 0 1 0 807133967 84656128 14191 4294967295 134512640 135726644 3221224576 3221127228 135298010 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 20668 14191 300 300 0 20368 0
vsize: 82672
[startup+30.0001 s]
Raw data (loadavg): 0.93 0.95 0.91 2/54 24510
Raw data (stat): 24510 (pb2sat) R 24509 15547 15546 0 -1 0 53016 0 0 0 2877 122 0 0 25 0 1 0 807133967 168079360 31212 4294967295 134512640 135726644 3221224576 3221145672 134809923 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 41035 31212 300 300 0 40735 0
vsize: 164140
[startup+40.0007 s]
Raw data (loadavg): 0.94 0.95 0.91 2/54 24510
Raw data (stat): 24510 (pb2sat) R 24509 15547 15546 0 -1 0 94807 0 0 0 3790 209 0 0 25 0 1 0 807133967 298397696 51328 4294967295 134512640 135726644 3221224576 3221014400 135105730 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 72851 51328 300 300 0 72551 0
vsize: 291404
[startup+50.0017 s]
Raw data (loadavg): 0.95 0.95 0.91 2/54 24510
Raw data (stat): 24510 (pb2sat) R 24509 15547 15546 0 -1 0 108806 0 0 0 4762 238 0 0 25 0 1 0 807133967 338169856 65104 4294967295 134512640 135726644 3221224576 3221144092 134604443 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 82561 65104 300 300 0 82261 0
vsize: 330244
[startup+60.0018 s]
Raw data (loadavg): 0.95 0.95 0.91 2/54 24510
Raw data (stat): 24510 (pb2sat) R 24509 15547 15546 0 -1 0 128584 0 0 0 5719 281 0 0 25 0 1 0 807133967 366555136 84653 4294967295 134512640 135726644 3221224576 3221173352 134784091 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 89491 84653 300 300 0 89191 0
vsize: 357964
[startup+70.0018 s]
Raw data (loadavg): 0.96 0.95 0.91 2/54 24510
Raw data (stat): 24510 (pb2sat) R 24509 15547 15546 0 -1 0 190841 0 0 0 6594 406 0 0 25 0 1 0 807133967 594345984 103799 4294967295 134512640 135726644 3221224576 3221091040 134559665 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 145104 103799 300 300 0 144804 0
vsize: 580416
[startup+80.0024 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 24510
Raw data (stat): 24510 (pb2sat) R 24509 15547 15546 0 -1 0 201623 0 0 0 7570 429 0 0 25 0 1 0 807133967 627900416 114389 4294967295 134512640 135726644 3221224576 3221221204 134541622 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 153296 114389 300 300 0 152996 0
vsize: 613184
[startup+90.0025 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 24510
Raw data (stat): 24510 (pb2sat) R 24509 15547 15546 0 -1 0 207784 0 0 0 8553 446 0 0 25 0 1 0 807133967 627900416 120353 4294967295 134512640 135726644 3221224576 3221221716 134573107 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 153296 120353 300 300 0 152996 0
vsize: 613184
[startup+100.004 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 24510
Raw data (stat): 24510 (pb2sat) R 24509 15547 15546 0 -1 0 213565 0 0 0 9538 461 0 0 25 0 1 0 807133967 627900416 125953 4294967295 134512640 135726644 3221224576 3221221776 134574434 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 153296 125953 300 300 0 152996 0
vsize: 613184
[startup+110.004 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 24510
Raw data (stat): 24510 (pb2sat) R 24509 15547 15546 0 -1 0 220127 0 0 0 10519 480 0 0 25 0 1 0 807133967 627900416 132309 4294967295 134512640 135726644 3221224576 3221221868 134574885 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 153296 132309 300 300 0 152996 0
vsize: 613184
[startup+120.004 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 24510
Raw data (stat): 24510 (pb2sat) R 24509 15547 15546 0 -1 0 236028 0 0 0 11485 515 0 0 25 0 1 0 807133967 924200960 147625 4294967295 134512640 135726644 3221224576 3221221120 134771796 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 225635 147625 300 300 0 225335 0
vsize: 902540
[startup+127.959 s]
Raw data (loadavg): 0.98 0.95 0.91 1/53 24563
Raw data (stat): 24510 (pb2sat) R 24509 15547 15546 0 -1 0 236028 0 0 0 11485 515 0 0 25 0 1 0 807133967 924200960 147625 4294967295 134512640 135726644 3221224576 3221221120 134771796 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 225635 147625 300 300 0 225335 0
vsize: 0

Child status: 1
Real time (s): 127.959
CPU time (s): 127.901
CPU user time (s): 122.172
CPU system time (s): 5.72813
CPU usage (%): 99.9547
Max. virtual memory (Kb): 902540
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####