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/plato.asu.edu/pub/unibo/normalized-mps-v2-20-10-CMS750_4.opb
MD5SUM7cb58e3aea22e107ecbc4e74969c24f1
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableNO
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of terms in the objective function 780
Biggest coefficient in the objective function 536870912
Number of bits for the biggest coefficient in the objective function 30
Sum of the numbers in the objective function 1074509823
Number of bits of the sum of numbers in the objective function 31
Biggest number in a constraint 1024000000
Number of bits of the biggest number in a constraint 30
Biggest sum of numbers in a constraint 2147731454
Number of bits of the biggest sum of numbers32
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark22.6916
Number of variables142226
Total number of constraints28077
Number of constraints which are clauses2438
Number of constraints which are cardinality constraints (but not clauses)7196
Number of constraints which are nor clauses,nor cardinality constraints18443
Minimum length of a constraint1
Maximum length of a constraint61

Trace number 35378 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc2 THE 2005-05-28 13:02:05 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24683 boxname=wulflinc2 idbench=1155 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  7cb58e3aea22e107ecbc4e74969c24f1  /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-20-10-CMS750_4.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-20-10-CMS750_4.opb
IDLAUNCH: 24683
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.191
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	: 2
cpu MHz		: 451.191
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:        681156 kB
Buffers:         37320 kB
Cached:         292612 kB
SwapCached:        820 kB
Active:          38288 kB
Inactive:       293800 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        680904 kB
SwapTotal:     2097136 kB
SwapFree:      2095480 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5340 kB
Slab:            15568 kB
Committed_AS:    71780 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-28 13:04:06 (client local time) WITH STATUS 1 IN 120.307 SECONDS
stats: 24683 7 120.307 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): 0.94 0.95 0.91 2/54 11312
Raw data (stat): 11312 (runsolver) R 11311 31399 31398 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 806787896 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): 0.95 0.95 0.91 2/54 11312
Raw data (stat): 11312 (pb2sat) R 11311 31399 31398 0 -1 0 27471 0 0 0 939 60 0 0 25 0 1 0 806787896 86052864 16588 4294967295 134512640 135726644 3221224576 3221168192 134607669 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 21009 16588 300 300 0 20709 0
vsize: 84036
[startup+20.0011 s]
Raw data (loadavg): 0.95 0.95 0.91 2/54 11312
Raw data (stat): 11312 (pb2sat) R 11311 31399 31398 0 -1 0 51301 0 0 0 1885 114 0 0 25 0 1 0 806787896 166502400 29478 4294967295 134512640 135726644 3221224576 3221221728 134573226 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 40650 29478 300 300 0 40350 0
vsize: 162600
[startup+30.0023 s]
Raw data (loadavg): 0.96 0.95 0.91 2/54 11312
Raw data (stat): 11312 (pb2sat) R 11311 31399 31398 0 -1 0 71904 0 0 0 2841 158 0 0 25 0 1 0 806787896 223105024 40676 4294967295 134512640 135726644 3221224576 3221218636 134604454 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 54469 40676 300 300 0 54169 0
vsize: 217876
[startup+40.0025 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 11312
Raw data (stat): 11312 (pb2sat) R 11311 31399 31398 0 -1 0 94730 0 0 0 3782 218 0 0 25 0 1 0 806787896 273436672 51001 4294967295 134512640 135726644 3221224576 3221218324 134608951 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 66757 51001 300 300 0 66457 0
vsize: 267028
[startup+50.0032 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 11312
Raw data (stat): 11312 (pb2sat) R 11311 31399 31398 0 -1 0 107672 0 0 0 4744 256 0 0 25 0 1 0 806787896 317804544 63737 4294967295 134512640 135726644 3221224576 3221203220 135287436 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 77589 63737 300 300 0 77289 0
vsize: 310356
[startup+60.0044 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 11312
Raw data (stat): 11312 (pb2sat) R 11311 31399 31398 0 -1 0 142900 0 0 0 5676 323 0 0 25 0 1 0 806787896 432361472 80406 4294967295 134512640 135726644 3221224576 3221221708 134574040 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 105557 80406 300 300 0 105257 0
vsize: 422228
[startup+70.0046 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 11312
Raw data (stat): 11312 (pb2sat) R 11311 31399 31398 0 -1 0 168762 0 0 0 6616 383 0 0 25 0 1 0 806787896 633692160 106060 4294967295 134512640 135726644 3221224576 3221216736 134784887 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 154710 106060 300 300 0 154410 0
vsize: 618840
[startup+80.0113 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 11312
Raw data (stat): 11312 (pb2sat) R 11311 31399 31398 0 -1 0 187680 0 0 0 7568 432 0 0 25 0 1 0 806787896 533024768 100202 4294967295 134512640 135726644 3221224576 3221221776 134576124 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 130133 100202 300 300 0 129833 0
vsize: 520532
[startup+90.0114 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 11312
Raw data (stat): 11312 (pb2sat) R 11311 31399 31398 0 -1 0 196757 0 0 0 8544 456 0 0 25 0 1 0 806787896 569147392 109108 4294967295 134512640 135726644 3221224576 3221221552 134541400 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 138952 109108 300 300 0 138652 0
vsize: 555808
[startup+100.011 s]
Raw data (loadavg): 0.99 0.96 0.91 2/54 11312
Raw data (stat): 11312 (pb2sat) R 11311 31399 31398 0 -1 0 209433 0 0 0 9508 492 0 0 25 0 1 0 806787896 581582848 121590 4294967295 134512640 135726644 3221224576 3221221520 134541148 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 141988 121590 300 300 0 141688 0
vsize: 567952
[startup+110.011 s]
Raw data (loadavg): 0.99 0.96 0.91 2/54 11312
Raw data (stat): 11312 (pb2sat) R 11311 31399 31398 0 -1 0 240722 0 0 0 10446 554 0 0 25 0 1 0 806787896 908431360 151999 4294967295 134512640 135726644 3221224576 3221209868 135297998 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 221785 151999 300 300 0 221485 0
vsize: 887140
[startup+120.013 s]
Raw data (loadavg): 0.99 0.96 0.91 2/54 11312
Raw data (stat): 11312 (pb2sat) R 11311 31399 31398 0 -1 0 266235 0 0 0 11370 628 0 0 25 0 1 0 806787896 148041728 35984 4294967295 134512640 135726644 3221224576 3221223020 135277549 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 36143 35984 300 300 0 35843 0
vsize: 144572
[startup+120.333 s]
Raw data (loadavg): 0.99 0.96 0.91 1/53 11312
Raw data (stat): 11312 (pb2sat) R 11311 31399 31398 0 -1 0 266235 0 0 0 11370 628 0 0 25 0 1 0 806787896 148041728 35984 4294967295 134512640 135726644 3221224576 3221223020 135277549 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 36143 35984 300 300 0 35843 0
vsize: 0

Child status: 1
Real time (s): 120.333
CPU time (s): 120.307
CPU user time (s): 113.944
CPU system time (s): 6.36303
CPU usage (%): 99.978
Max. virtual memory (Kb): 887140
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####