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/ftp.netlib.org/lp/data/normalized-mps-v2-20-10-standgub.opb
MD5SUM596bf3240e9419031120c2cbaef1fb61
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 210
Biggest coefficient in the objective function 53687091200
Number of bits for the biggest coefficient in the objective function 36
Sum of the numbers in the objective function 326417514192
Number of bits of the sum of numbers in the objective function 39
Biggest number in a constraint 77387257610240
Number of bits of the biggest number in a constraint 47
Biggest sum of numbers in a constraint 2427818341201528
Number of bits of the biggest sum of numbers52
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.331949
Number of variables33244
Total number of constraints463
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 constraints463
Minimum length of a constraint11
Maximum length of a constraint22350

Trace number 35109 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc2 THE 2005-05-28 12:15:27 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24415 boxname=wulflinc2 idbench=887 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  596bf3240e9419031120c2cbaef1fb61  /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-20-10-standgub.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-20-10-standgub.opb
IDLAUNCH: 24415
/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:        722844 kB
Buffers:         37084 kB
Cached:         251640 kB
SwapCached:        820 kB
Active:          24780 kB
Inactive:       266164 kB
HighTotal:      131008 kB
HighFree:        31052 kB
LowTotal:       903652 kB
LowFree:        691792 kB
SwapTotal:     2097136 kB
SwapFree:      2095480 kB
Dirty:              32 kB
Writeback:           0 kB
Mapped:           5340 kB
Slab:            15168 kB
Committed_AS:    71788 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-28 12:17:05 (client local time) WITH STATUS 1 IN 97.2682 SECONDS
stats: 24415 7 97.2682 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): 1.00 0.96 0.91 1/54 9863
Raw data (stat): 9863 (runsolver) R 9862 31399 31398 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 806508025 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+10.001 s]
Raw data (loadavg): 1.00 0.96 0.91 2/54 9863
Raw data (stat): 9863 (pb2sat) R 9862 31399 31398 0 -1 0 27609 0 0 0 931 67 0 0 25 0 1 0 806508025 79671296 16652 4294967295 134512640 135726644 3221224576 3221221776 134574978 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 19451 16652 300 300 0 19151 0
vsize: 77804
[startup+20.001 s]
Raw data (loadavg): 1.00 0.96 0.91 2/54 9863
Raw data (stat): 9863 (pb2sat) R 9862 31399 31398 0 -1 0 56347 0 0 0 1866 132 0 0 25 0 1 0 806508025 157011968 34383 4294967295 134512640 135726644 3221224576 3221124296 134784091 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 38333 34383 300 300 0 38033 0
vsize: 153332
[startup+30.0021 s]
Raw data (loadavg): 1.00 0.96 0.91 2/54 9863
Raw data (stat): 9863 (pb2sat) R 9862 31399 31398 0 -1 0 94791 0 0 0 2784 213 0 0 25 0 1 0 806508025 302096384 51122 4294967295 134512640 135726644 3221224576 3221112072 135280687 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 73754 51122 300 300 0 73454 0
vsize: 295016
[startup+40.0014 s]
Raw data (loadavg): 1.00 0.96 0.91 2/54 9863
Raw data (stat): 9863 (pb2sat) R 9862 31399 31398 0 -1 0 113839 0 0 0 3735 263 0 0 25 0 1 0 806508025 312233984 69864 4294967295 134512640 135726644 3221224576 3221162256 135288897 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 76229 69865 300 300 0 75929 0
vsize: 304916
[startup+50.0021 s]
Raw data (loadavg): 1.00 0.97 0.91 2/54 9863
Raw data (stat): 9863 (pb2sat) R 9862 31399 31398 0 -1 0 174818 0 0 0 4607 391 0 0 25 0 1 0 806508025 533671936 87716 4294967295 134512640 135726644 3221224576 3220849024 134782642 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 130291 87717 300 300 0 129991 0
vsize: 521164
[startup+60.0085 s]
Raw data (loadavg): 1.00 0.97 0.91 2/54 9863
Raw data (stat): 9863 (pb2sat) R 9862 31399 31398 0 -1 0 186887 0 0 0 5583 416 0 0 25 0 1 0 806508025 567226368 99546 4294967295 134512640 135726644 3221224576 3220840236 134604449 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 138483 99547 300 300 0 138183 0
vsize: 553932
[startup+70.0151 s]
Raw data (loadavg): 1.00 0.97 0.91 2/54 9863
Raw data (stat): 9863 (pb2sat) R 9862 31399 31398 0 -1 0 206798 0 0 0 6549 451 0 0 25 0 1 0 806508025 595132416 119197 4294967295 134512640 135726644 3221224576 3220843808 134767234 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 145296 119197 300 300 0 144996 0
vsize: 581184
[startup+80.0156 s]
Raw data (loadavg): 1.00 0.97 0.91 2/54 9863
Raw data (stat): 9863 (pb2sat) R 9862 31399 31398 0 -1 0 227215 0 0 0 7510 490 0 0 25 0 1 0 806508025 626118656 139364 4294967295 134512640 135726644 3221224576 3220843896 135282351 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 152861 139365 300 300 0 152561 0
vsize: 611444
[startup+90.015 s]
Raw data (loadavg): 1.00 0.97 0.91 2/54 9863
Raw data (stat): 9863 (pb2sat) R 9862 31399 31398 0 -1 0 242958 0 0 0 8476 524 0 0 25 0 1 0 806508025 701308928 154914 4294967295 134512640 135726644 3221224576 3221222692 134541622 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 171218 154914 300 300 0 170918 0
vsize: 684872
[startup+97.2809 s]
Raw data (loadavg): 1.00 0.97 0.91 1/53 9863
Raw data (stat): 9863 (pb2sat) R 9862 31399 31398 0 -1 0 242958 0 0 0 8476 524 0 0 25 0 1 0 806508025 701308928 154914 4294967295 134512640 135726644 3221224576 3221222692 134541622 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 171218 154914 300 300 0 170918 0
vsize: 0

Child status: 1
Real time (s): 97.2803
CPU time (s): 97.2682
CPU user time (s): 91.7091
CPU system time (s): 5.55915
CPU usage (%): 99.9876
Max. virtual memory (Kb): 684872
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####