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-scrs8.opb
MD5SUMf909afc4ad4c57b225953e69f0f7b926
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 16500
Biggest coefficient in the objective function 278154827530240000
Number of bits for the biggest coefficient in the objective function 58
Sum of the numbers in the objective function 7024858555092325200
Number of bits of the sum of numbers in the objective function 63
Biggest number in a constraint 278154827530240000
Number of bits of the biggest number in a constraint 58
Biggest sum of numbers in a constraint 7024858555092325200
Number of bits of the biggest sum of numbers63
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.207967
Number of variables23380
Total number of constraints490
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 constraints490
Minimum length of a constraint20
Maximum length of a constraint740

Trace number 42734 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc2 THE 2005-06-16 14:13:42 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25951 boxname=wulflinc2 idbench=1251 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  f909afc4ad4c57b225953e69f0f7b926  /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-13-7-scrs8.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-13-7-scrs8.opb
IDLAUNCH: 25951
/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:        713976 kB
Buffers:         10108 kB
Cached:         287944 kB
SwapCached:       1420 kB
Active:          26200 kB
Inactive:       273884 kB
HighTotal:      131008 kB
HighFree:         6356 kB
LowTotal:       903652 kB
LowFree:        707620 kB
SwapTotal:     2097136 kB
SwapFree:      2094720 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5056 kB
Slab:            14768 kB
Committed_AS:    71904 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 14:15:34 (client local time) WITH STATUS 1 IN 112.306 SECONDS
stats: 25951 7 112.306 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): 0.91 0.95 0.90 2/54 11443
Raw data (stat): 11443 (runsolver) R 11442 31399 31398 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 971400269 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+10.0002 s]
Raw data (loadavg): 0.93 0.95 0.90 2/54 11443
Raw data (stat): 11443 (pb2sat-v2) R 11442 31399 31398 0 -1 0 13299 0 0 0 968 30 0 0 25 0 1 0 971400269 42037248 7770 4294967295 134512640 135730672 3221224576 3221206548 134546554 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 10263 7770 301 301 0 9962 0
vsize: 41052
[startup+20.0001 s]
Raw data (loadavg): 0.94 0.96 0.91 2/54 11443
Raw data (stat): 11443 (pb2sat-v2) R 11442 31399 31398 0 -1 0 44331 0 0 0 1902 95 0 0 25 0 1 0 971400269 160366592 28617 4294967295 134512640 135730672 3221224576 3221196368 134788521 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 39152 28621 301 301 0 38851 0
vsize: 156608
[startup+30.0005 s]
Raw data (loadavg): 0.95 0.96 0.91 2/54 11443
Raw data (stat): 11443 (pb2sat-v2) R 11442 31399 31398 0 -1 0 70575 0 0 0 2848 149 0 0 25 0 1 0 971400269 250458112 48005 4294967295 134512640 135730672 3221224576 3221195440 134776090 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 61147 48005 301 301 0 60846 0
vsize: 244588
[startup+40.0001 s]
Raw data (loadavg): 0.95 0.96 0.91 2/54 11443
Raw data (stat): 11443 (pb2sat-v2) R 11442 31399 31398 0 -1 0 92938 0 0 0 3799 199 0 0 25 0 1 0 971400269 298688512 49179 4294967295 134512640 135730672 3221224576 3221198988 134608033 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 72922 49180 301 301 0 72621 0
vsize: 291688
[startup+50.0015 s]
Raw data (loadavg): 0.96 0.96 0.91 2/54 11443
Raw data (stat): 11443 (pb2sat-v2) R 11442 31399 31398 0 -1 0 108831 0 0 0 4765 232 0 0 25 0 1 0 971400269 310448128 64819 4294967295 134512640 135730672 3221224576 3221207744 135288503 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 75793 64819 301 301 0 75492 0
vsize: 303172
[startup+60.0015 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 11443
Raw data (stat): 11443 (pb2sat-v2) R 11442 31399 31398 0 -1 0 144868 0 0 0 5695 301 0 0 25 0 1 0 971400269 427868160 82300 4294967295 134512640 135730672 3221224576 3221208336 134546483 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 104460 82300 301 301 0 104159 0
vsize: 417840
[startup+70.0012 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 11443
Raw data (stat): 11443 (pb2sat-v2) R 11442 31399 31398 0 -1 0 180201 0 0 0 6623 374 0 0 25 0 1 0 971400269 528531456 92847 4294967295 134512640 135730672 3221224576 3221205092 135291157 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 129036 92847 301 301 0 128735 0
vsize: 516144
[startup+80.0022 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 11443
Raw data (stat): 11443 (pb2sat-v2) R 11442 31399 31398 0 -1 0 191191 0 0 0 7601 396 0 0 25 0 1 0 971400269 562085888 103624 4294967295 134512640 135730672 3221224576 3221208320 135282234 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 137228 103624 301 301 0 136927 0
vsize: 548912
[startup+90.0017 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 11443
Raw data (stat): 11443 (pb2sat-v2) R 11442 31399 31398 0 -1 0 205194 0 0 0 8570 426 0 0 25 0 1 0 971400269 567631872 117381 4294967295 134512640 135730672 3221224576 3221204720 134608826 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 138582 117381 301 301 0 138281 0
vsize: 554328
[startup+100.002 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 11443
Raw data (stat): 11443 (pb2sat-v2) R 11442 31399 31398 0 -1 0 222293 0 0 0 9534 462 0 0 25 0 1 0 971400269 585207808 134231 4294967295 134512640 135730672 3221224576 3221198576 135282776 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 142873 134232 301 301 0 142572 0
vsize: 571492
[startup+110.004 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 11443
Raw data (stat): 11443 (pb2sat-v2) R 11442 31399 31398 0 -1 0 237522 0 0 0 10490 506 0 0 25 0 1 0 971400269 286736384 69842 4294967295 134512640 135730672 3221224576 3221222928 135284078 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 70004 69842 301 301 0 69703 0
vsize: 280016
[startup+112.341 s]
Raw data (loadavg): 0.98 0.97 0.91 1/53 11443
Raw data (stat): 11443 (pb2sat-v2) R 11442 31399 31398 0 -1 0 237522 0 0 0 10490 506 0 0 25 0 1 0 971400269 286736384 69842 4294967295 134512640 135730672 3221224576 3221222928 135284078 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 70004 69842 301 301 0 69703 0
vsize: 0

Child status: 1
Real time (s): 112.34
CPU time (s): 112.306
CPU user time (s): 107.088
CPU system time (s): 5.21821
CPU usage (%): 99.9697
Max. virtual memory (Kb): 571492
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####