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/ftp.netlib.org/lp/data/normalized-mps-v2-13-7-scsd6.opb
MD5SUM0d5445665abfc27d4c2dc0b60a7a20c1
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 27000
Biggest coefficient in the objective function 234468721295360
Number of bits for the biggest coefficient in the objective function 48
Sum of the numbers in the objective function 311706790809100500
Number of bits of the sum of numbers in the objective function 59
Biggest number in a constraint 234468721295360
Number of bits of the biggest number in a constraint 48
Biggest sum of numbers in a constraint 311706790809100500
Number of bits of the biggest sum of numbers59
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.237963
Number of variables27000
Total number of constraints147
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 constraints147
Minimum length of a constraint400
Maximum length of a constraint800

Trace number 42736 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc3 THE 2005-06-16 14:14:24 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25953 boxname=wulflinc3 idbench=1253 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  0d5445665abfc27d4c2dc0b60a7a20c1  /oldhome/oroussel/tmp/wulflinc3/normalized-mps-v2-13-7-scsd6.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc3/normalized-mps-v2-13-7-scsd6.opb
IDLAUNCH: 25953
/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:        739360 kB
Buffers:         13888 kB
Cached:         258820 kB
SwapCached:        788 kB
Active:          34048 kB
Inactive:       240792 kB
HighTotal:      131008 kB
HighFree:         3220 kB
LowTotal:       903652 kB
LowFree:        736140 kB
SwapTotal:     2097136 kB
SwapFree:      2095372 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5104 kB
Slab:            14604 kB
Committed_AS:    71892 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 14:16:20 (client local time) WITH STATUS 1 IN 116.632 SECONDS
stats: 25953 7 116.632 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): 0.90 0.93 0.90 2/54 24489
Raw data (stat): 24489 (runsolver) R 24488 20224 20223 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 971391309 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+10.0004 s]
Raw data (loadavg): 0.91 0.93 0.90 2/54 24489
Raw data (stat): 24489 (pb2sat-v2) R 24488 20224 20223 0 -1 0 2218 0 0 0 993 5 0 0 25 0 1 0 971391309 8093696 1541 4294967295 134512640 135730672 3221224576 3221221664 134561656 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 1976 1541 301 301 0 1675 0
vsize: 7904
[startup+20.0017 s]
Raw data (loadavg): 0.92 0.93 0.91 2/54 24489
Raw data (stat): 24489 (pb2sat-v2) R 24488 20224 20223 0 -1 0 20273 0 0 0 1954 43 0 0 25 0 1 0 971391309 64851968 12405 4294967295 134512640 135730672 3221224576 3221000600 135284312 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 15833 12405 301 301 0 15532 0
vsize: 63332
[startup+30.001 s]
Raw data (loadavg): 0.94 0.93 0.91 2/54 24489
Raw data (stat): 24489 (pb2sat-v2) R 24488 20224 20223 0 -1 0 51546 0 0 0 2891 106 0 0 25 0 1 0 971391309 153174016 29370 4294967295 134512640 135730672 3221224576 3221005160 134787727 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 37396 29371 301 301 0 37095 0
vsize: 149584
[startup+40.0018 s]
Raw data (loadavg): 0.94 0.93 0.91 2/54 24489
Raw data (stat): 24489 (pb2sat-v2) R 24488 20224 20223 0 -1 0 79575 0 0 0 3835 162 0 0 25 0 1 0 971391309 242302976 47861 4294967295 134512640 135730672 3221224576 3221002804 134612555 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 59156 47862 301 301 0 58855 0
vsize: 236624
[startup+50.002 s]
Raw data (loadavg): 0.95 0.94 0.91 2/54 24489
Raw data (stat): 24489 (pb2sat-v2) R 24488 20224 20223 0 -1 0 106881 0 0 0 4782 215 0 0 25 0 1 0 971391309 341463040 62652 4294967295 134512640 135730672 3221224576 3221002288 134770700 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 83365 62652 301 301 0 83064 0
vsize: 333460
[startup+60.0015 s]
Raw data (loadavg): 0.96 0.94 0.91 2/54 24489
Raw data (stat): 24489 (pb2sat-v2) R 24488 20224 20223 0 -1 0 137320 0 0 0 5726 272 0 0 25 0 1 0 971391309 531447808 92432 4294967295 134512640 135730672 3221224576 3221002384 134775338 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 129748 92434 301 301 0 129447 0
vsize: 518992
[startup+70.0014 s]
Raw data (loadavg): 0.97 0.94 0.91 2/54 24489
Raw data (stat): 24489 (pb2sat-v2) R 24488 20224 20223 0 -1 0 161815 0 0 0 6679 319 0 0 25 0 1 0 971391309 478150656 98108 4294967295 134512640 135730672 3221224576 3221009336 134787729 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 116736 98108 301 301 0 116435 0
vsize: 466944
[startup+80.0015 s]
Raw data (loadavg): 0.97 0.94 0.91 2/54 24489
Raw data (stat): 24489 (pb2sat-v2) R 24488 20224 20223 0 -1 0 200227 0 0 0 7602 396 0 0 25 0 1 0 971391309 590303232 111721 4294967295 134512640 135730672 3221224576 3221003180 134608033 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 144117 111721 301 301 0 143816 0
vsize: 576468
[startup+90.002 s]
Raw data (loadavg): 0.97 0.94 0.91 2/54 24489
Raw data (stat): 24489 (pb2sat-v2) R 24488 20224 20223 0 -1 0 217562 0 0 0 8571 427 0 0 25 0 1 0 971391309 650080256 128836 4294967295 134512640 135730672 3221224576 3221004272 134549616 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 158711 128836 301 301 0 158410 0
vsize: 634844
[startup+100.002 s]
Raw data (loadavg): 0.98 0.94 0.91 2/54 24489
Raw data (stat): 24489 (pb2sat-v2) R 24488 20224 20223 0 -1 0 237400 0 0 0 9532 466 0 0 25 0 1 0 971391309 680124416 148424 4294967295 134512640 135730672 3221224576 3221001360 134770712 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 166046 148425 301 301 0 165745 0
vsize: 664184
[startup+110.002 s]
Raw data (loadavg): 0.98 0.94 0.91 2/54 24489
Raw data (stat): 24489 (pb2sat-v2) R 24488 20224 20223 0 -1 0 250868 0 0 0 10506 492 0 0 25 0 1 0 971391309 701505536 161619 4294967295 134512640 135730672 3221224576 3221223016 135104781 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 171266 161619 301 301 0 170965 0
vsize: 685064
[startup+116.646 s]
Raw data (loadavg): 0.98 0.95 0.91 1/53 24489
Raw data (stat): 24489 (pb2sat-v2) R 24488 20224 20223 0 -1 0 250868 0 0 0 10506 492 0 0 25 0 1 0 971391309 701505536 161619 4294967295 134512640 135730672 3221224576 3221223016 135104781 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 171266 161619 301 301 0 170965 0
vsize: 0

Child status: 1
Real time (s): 116.646
CPU time (s): 116.632
CPU user time (s): 111.372
CPU system time (s): 5.2602
CPU usage (%): 99.9885
Max. virtual memory (Kb): 685064
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####