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-blp-ic97.opb
MD5SUM827023c27ed4657a4077da2b27355df8
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 31
Biggest coefficient in the objective function 1073741824
Number of bits for the biggest coefficient in the objective function 31
Sum of the numbers in the objective function 2147483647
Number of bits of the sum of numbers in the objective function 31
Biggest number in a constraint 83886080000000
Number of bits of the biggest number in a constraint 47
Biggest sum of numbers in a constraint 508832629179091
Number of bits of the biggest sum of numbers49
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.72089
Number of variables11503
Total number of constraints10724
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)10588
Number of constraints which are nor clauses,nor cardinality constraints136
Minimum length of a constraint1
Maximum length of a constraint9784

Trace number 42632 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc3 THE 2005-06-16 13:07:30 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25852 boxname=wulflinc3 idbench=1152 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  827023c27ed4657a4077da2b27355df8  /oldhome/oroussel/tmp/wulflinc3/normalized-mps-v2-20-10-blp-ic97.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc3/normalized-mps-v2-20-10-blp-ic97.opb
IDLAUNCH: 25852
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.190
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		: 451.190
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:        692208 kB
Buffers:         22236 kB
Cached:         297664 kB
SwapCached:        788 kB
Active:          38788 kB
Inactive:       283176 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        691956 kB
SwapTotal:     2097136 kB
SwapFree:      2095372 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5104 kB
Slab:            14680 kB
Committed_AS:    71900 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 13:09:22 (client local time) WITH STATUS 1 IN 111.603 SECONDS
stats: 25852 7 111.603 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): 0.92 0.95 0.90 1/54 22666
Raw data (stat): 22666 (runsolver) R 22665 20224 20223 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 970989887 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+10.0008 s]
Raw data (loadavg): 0.93 0.95 0.91 2/54 22666
Raw data (stat): 22666 (pb2sat-v2) R 22665 20224 20223 0 -1 0 13738 0 0 0 967 31 0 0 25 0 1 0 970989887 42450944 8314 4294967295 134512640 135730672 3221224576 3221045076 135281170 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 10364 8314 301 301 0 10063 0
vsize: 41456
[startup+20.0015 s]
Raw data (loadavg): 0.94 0.95 0.91 2/54 22666
Raw data (stat): 22666 (pb2sat-v2) R 22665 20224 20223 0 -1 0 36754 0 0 0 1918 81 0 0 25 0 1 0 970989887 110841856 21194 4294967295 134512640 135730672 3221224576 3221221776 134579269 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 27061 21194 301 301 0 26760 0
vsize: 108244
[startup+30.0014 s]
Raw data (loadavg): 0.95 0.96 0.91 2/54 22666
Raw data (stat): 22666 (pb2sat-v2) R 22665 20224 20223 0 -1 0 53433 0 0 0 2877 122 0 0 25 0 1 0 970989887 154542080 31541 4294967295 134512640 135730672 3221224576 3220797968 134785952 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 37730 31542 301 301 0 37429 0
vsize: 150920
[startup+40.0014 s]
Raw data (loadavg): 0.96 0.96 0.91 2/54 22666
Raw data (stat): 22666 (pb2sat-v2) R 22665 20224 20223 0 -1 0 75068 0 0 0 3836 164 0 0 25 0 1 0 970989887 220356608 43861 4294967295 134512640 135730672 3221224576 3217086592 134770870 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 53798 43861 301 301 0 53497 0
vsize: 215192
[startup+50.002 s]
Raw data (loadavg): 0.96 0.96 0.91 2/54 22666
Raw data (stat): 22666 (pb2sat-v2) R 22665 20224 20223 0 -1 0 100579 0 0 0 4779 220 0 0 25 0 1 0 970989887 314109952 56848 4294967295 134512640 135730672 3221224576 3216890208 134770149 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 76687 56848 301 301 0 76386 0
vsize: 306748
[startup+60.0019 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 22666
Raw data (stat): 22666 (pb2sat-v2) R 22665 20224 20223 0 -1 0 133843 0 0 0 5710 289 0 0 25 0 1 0 970989887 510423040 89378 4294967295 134512640 135730672 3221224576 3216697192 135285983 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 124615 89379 301 301 0 124314 0
vsize: 498460
[startup+70.0026 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 22666
Raw data (stat): 22666 (pb2sat-v2) R 22665 20224 20223 0 -1 0 157271 0 0 0 6664 336 0 0 25 0 1 0 970989887 457093120 94658 4294967295 134512640 135730672 3221224576 3216701096 134787727 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 111595 94659 301 301 0 111294 0
vsize: 446380
[startup+80.0035 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 22666
Raw data (stat): 22666 (pb2sat-v2) R 22665 20224 20223 0 -1 0 195306 0 0 0 7584 416 0 0 25 0 1 0 970989887 569561088 107886 4294967295 134512640 135730672 3221224576 3216686272 134550943 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 139053 107886 301 301 0 138752 0
vsize: 556212
[startup+90.0033 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 22666
Raw data (stat): 22666 (pb2sat-v2) R 22665 20224 20223 0 -1 0 213173 0 0 0 8549 451 0 0 25 0 1 0 970989887 632225792 125519 4294967295 134512640 135730672 3221224576 3216690728 135285983 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 154352 125520 301 301 0 154051 0
vsize: 617408
[startup+100.004 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 22666
Raw data (stat): 22666 (pb2sat-v2) R 22665 20224 20223 0 -1 0 234465 0 0 0 9506 494 0 0 25 0 1 0 970989887 666771456 146528 4294967295 134512640 135730672 3221224576 3217217904 134546503 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 162786 146528 301 301 0 162485 0
vsize: 651144
[startup+110.005 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 22666
Raw data (stat): 22666 (pb2sat-v2) R 22665 20224 20223 0 -1 0 239991 0 0 0 10483 517 0 0 25 0 1 0 970989887 374538240 90675 4294967295 134512640 135730672 3221224576 3221222912 135282782 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 91440 90675 301 301 0 91139 0
vsize: 365760
[startup+111.602 s]
Raw data (loadavg): 0.98 0.96 0.91 1/53 22666
Raw data (stat): 22666 (pb2sat-v2) R 22665 20224 20223 0 -1 0 239991 0 0 0 10483 517 0 0 25 0 1 0 970989887 374538240 90675 4294967295 134512640 135730672 3221224576 3221222912 135282782 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 91440 90675 301 301 0 91139 0
vsize: 0

Child status: 1
Real time (s): 111.601
CPU time (s): 111.603
CPU user time (s): 106.236
CPU system time (s): 5.36718
CPU usage (%): 100.001
Max. virtual memory (Kb): 651144
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####