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-gt2.opb
MD5SUMf1382105ee9fb79777762a53cf6a73c1
Bench Categoryoptimization, medium integers (OPTMEDINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 21166
Optimality of the best value was proved NO
Number of terms in the objective function 304
Biggest coefficient in the objective function 62376
Number of bits for the biggest coefficient in the objective function 16
Sum of the numbers in the objective function 3092598
Number of bits of the sum of numbers in the objective function 22
Biggest number in a constraint 62376
Number of bits of the biggest number in a constraint 16
Biggest sum of numbers in a constraint 3092598
Number of bits of the biggest sum of numbers22
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1177.34
Number of variables556
Total number of constraints217
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)26
Number of constraints which are nor clauses,nor cardinality constraints191
Minimum length of a constraint1
Maximum length of a constraint48

Trace number 35254 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc21 THE 2005-05-28 12:34:40 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24563 boxname=wulflinc21 idbench=1035 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  f1382105ee9fb79777762a53cf6a73c1  /oldhome/oroussel/tmp/wulflinc21/normalized-mps-v2-20-10-gt2.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc21/normalized-mps-v2-20-10-gt2.opb
IDLAUNCH: 24563
/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:        847940 kB
Buffers:         34600 kB
Cached:         129004 kB
SwapCached:        956 kB
Active:          53856 kB
Inactive:       111908 kB
HighTotal:      131008 kB
HighFree:          728 kB
LowTotal:       903652 kB
LowFree:        847212 kB
SwapTotal:     2097892 kB
SwapFree:      2096012 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5136 kB
Slab:            15348 kB
Committed_AS:    63912 kB
PageTables:        332 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-28 12:36:31 (client local time) WITH STATUS 1 IN 110.643 SECONDS
stats: 24563 7 110.643 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): 0.96 0.94 0.91 2/55 14407
Raw data (stat): 14407 (runsolver) R 14406 32363 32362 0 -1 64 8 0 0 0 0 0 0 0 20 0 1 0 742106828 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): 0.96 0.94 0.91 2/55 14407
Raw data (stat): 14407 (pb2sat) R 14406 32363 32362 0 -1 0 30347 0 0 0 940 59 0 0 25 0 1 0 742106828 91230208 19191 4294967295 134512640 135726644 3221224592 3221110544 134554691 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 22273 19191 300 300 0 21973 0
vsize: 89092
[startup+20.001 s]
Raw data (loadavg): 0.97 0.95 0.91 2/55 14407
Raw data (stat): 14407 (pb2sat) R 14406 32363 32362 0 -1 0 59206 0 0 0 1881 119 0 0 25 0 1 0 742106828 178413568 36825 4294967295 134512640 135726644 3221224592 3221133836 134604446 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 43558 36825 300 300 0 43258 0
vsize: 174232
[startup+30.0017 s]
Raw data (loadavg): 0.97 0.95 0.91 2/55 14407
Raw data (stat): 14407 (pb2sat) R 14406 32363 32362 0 -1 0 97868 0 0 0 2802 197 0 0 25 0 1 0 742106828 295993344 53291 4294967295 134512640 135726644 3221224592 3221102108 134604449 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 72264 53291 300 300 0 71964 0
vsize: 289056
[startup+40.0018 s]
Raw data (loadavg): 0.98 0.95 0.91 2/55 14407
Raw data (stat): 14407 (pb2sat) R 14406 32363 32362 0 -1 0 115581 0 0 0 3767 233 0 0 25 0 1 0 742106828 350769152 70773 4294967295 134512640 135726644 3221224592 3221135344 134554685 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 85637 70773 300 300 0 85337 0
vsize: 342548
[startup+50.0021 s]
Raw data (loadavg): 0.98 0.95 0.91 2/55 14407
Raw data (stat): 14407 (pb2sat) R 14406 32363 32362 0 -1 0 159137 0 0 0 4690 310 0 0 25 0 1 0 742106828 558718976 113139 4294967295 134512640 135726644 3221224592 3221126032 135279084 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 136406 113139 300 300 0 136106 0
vsize: 545624
[startup+60.0017 s]
Raw data (loadavg): 0.98 0.95 0.91 2/55 14407
Raw data (stat): 14407 (pb2sat) R 14406 32363 32362 0 -1 0 193289 0 0 0 5611 389 0 0 25 0 1 0 742106828 592269312 104127 4294967295 134512640 135726644 3221224592 3221112072 135280661 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 144597 104127 300 300 0 144297 0
vsize: 578388
[startup+70.0024 s]
Raw data (loadavg): 0.98 0.95 0.91 2/55 14407
Raw data (stat): 14407 (pb2sat) R 14406 32363 32362 0 -1 0 204428 0 0 0 6588 412 0 0 25 0 1 0 742106828 625823744 115069 4294967295 134512640 135726644 3221224592 3221126416 135105719 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 152789 115069 300 300 0 152489 0
vsize: 611156
[startup+80.0031 s]
Raw data (loadavg): 0.99 0.95 0.91 2/55 14407
Raw data (stat): 14407 (pb2sat) R 14406 32363 32362 0 -1 0 224734 0 0 0 7550 451 0 0 25 0 1 0 742106828 654884864 135133 4294967295 134512640 135726644 3221224592 3221147308 134604449 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 159884 135133 300 300 0 159584 0
vsize: 639536
[startup+90.0032 s]
Raw data (loadavg): 0.99 0.95 0.91 2/55 14407
Raw data (stat): 14407 (pb2sat) R 14406 32363 32362 0 -1 0 245210 0 0 0 8507 494 0 0 25 0 1 0 742106828 685658112 155371 4294967295 134512640 135726644 3221224592 3221109708 134604449 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 167397 155371 300 300 0 167097 0
vsize: 669588
[startup+100.004 s]
Raw data (loadavg): 0.99 0.95 0.91 2/55 14407
Raw data (stat): 14407 (pb2sat) R 14406 32363 32362 0 -1 0 261386 0 0 0 9473 528 0 0 25 0 1 0 742106828 759644160 171358 4294967295 134512640 135726644 3221224592 3221104128 134554608 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 185460 171358 300 300 0 185160 0
vsize: 741840
[startup+110.004 s]
Raw data (loadavg): 0.99 0.95 0.91 2/55 14407
Raw data (stat): 14407 (pb2sat) R 14406 32363 32362 0 -1 0 261845 0 0 0 10457 544 0 0 25 0 1 0 742106828 400646144 97330 4294967295 134512640 135726644 3221224592 3221222944 135280446 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 97814 97330 300 300 0 97514 0
vsize: 391256
[startup+110.634 s]
Raw data (loadavg): 0.99 0.95 0.91 1/54 14407
Raw data (stat): 14407 (pb2sat) R 14406 32363 32362 0 -1 0 261845 0 0 0 10457 544 0 0 25 0 1 0 742106828 400646144 97330 4294967295 134512640 135726644 3221224592 3221222944 135280446 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 97814 97330 300 300 0 97514 0
vsize: 0

Child status: 1
Real time (s): 110.633
CPU time (s): 110.643
CPU user time (s): 104.995
CPU system time (s): 5.64814
CPU usage (%): 100.009
Max. virtual memory (Kb): 741840
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####