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-scfxm1.opb
MD5SUM9724b70be00612c57ff3bed741e4e1b9
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 460
Biggest coefficient in the objective function 5242880
Number of bits for the biggest coefficient in the objective function 23
Sum of the numbers in the objective function 137363325
Number of bits of the sum of numbers in the objective function 28
Biggest number in a constraint 52428800000
Number of bits of the biggest number in a constraint 36
Biggest sum of numbers in a constraint 319170501375
Number of bits of the biggest sum of numbers39
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.357944
Number of variables9140
Total number of constraints330
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 constraints330
Minimum length of a constraint20
Maximum length of a constraint1140

Trace number 42730 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc6 THE 2005-06-16 14:12:19 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25947 boxname=wulflinc6 idbench=1247 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  9724b70be00612c57ff3bed741e4e1b9  /oldhome/oroussel/tmp/wulflinc6/normalized-mps-v2-13-7-scfxm1.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc6/normalized-mps-v2-13-7-scfxm1.opb
IDLAUNCH: 25947
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.042
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		: 451.042
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:        714876 kB
Buffers:         16524 kB
Cached:         280316 kB
SwapCached:       1000 kB
Active:          27256 kB
Inactive:       271720 kB
HighTotal:      131008 kB
HighFree:         5488 kB
LowTotal:       903652 kB
LowFree:        709388 kB
SwapTotal:     2097136 kB
SwapFree:      2095200 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5092 kB
Slab:            15084 kB
Committed_AS:    63844 kB
PageTables:        320 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 14:14:14 (client local time) WITH STATUS 1 IN 114.883 SECONDS
stats: 25947 7 114.883 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 1/54 21776
Raw data (stat): 21776 (runsolver) R 21775 25568 25567 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 971387070 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+10.0005 s]
Raw data (loadavg): 0.92 0.93 0.90 2/54 21776
Raw data (stat): 21776 (pb2sat-v2) R 21775 25568 25567 0 -1 0 27957 0 0 0 946 53 0 0 25 0 1 0 971387070 87363584 16836 4294967295 134512640 135730672 3221224576 3221089020 134608033 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 21329 16836 301 301 0 21028 0
vsize: 85316
[startup+20.0017 s]
Raw data (loadavg): 0.93 0.93 0.91 2/54 21776
Raw data (stat): 21776 (pb2sat-v2) R 21775 25568 25567 0 -1 0 54857 0 0 0 1895 104 0 0 25 0 1 0 971387070 171302912 32539 4294967295 134512640 135730672 3221224576 3221092856 134787727 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 41822 32539 301 301 0 41521 0
vsize: 167288
[startup+30.0029 s]
Raw data (loadavg): 0.94 0.94 0.91 2/54 21776
Raw data (stat): 21776 (pb2sat-v2) R 21775 25568 25567 0 -1 0 94355 0 0 0 2823 176 0 0 25 0 1 0 971387070 348516352 62153 4294967295 134512640 135730672 3221224576 3221093824 134788521 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 85087 62157 301 301 0 84786 0
vsize: 340348
[startup+40.003 s]
Raw data (loadavg): 0.95 0.94 0.91 2/54 21776
Raw data (stat): 21776 (pb2sat-v2) R 21775 25568 25567 0 -1 0 107911 0 0 0 3795 205 0 0 25 0 1 0 971387070 337817600 63213 4294967295 134512640 135730672 3221224576 3221099632 134770122 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 82475 63214 301 301 0 82174 0
vsize: 329900
[startup+50.0041 s]
Raw data (loadavg): 0.96 0.94 0.91 2/54 21776
Raw data (stat): 21776 (pb2sat-v2) R 21775 25568 25567 0 -1 0 126807 0 0 0 4762 239 0 0 25 0 1 0 971387070 364986368 81890 4294967295 134512640 135730672 3221224576 3221108544 134546483 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 89108 81890 301 301 0 88807 0
vsize: 356432
[startup+60.0043 s]
Raw data (loadavg): 0.96 0.94 0.91 2/54 21776
Raw data (stat): 21776 (pb2sat-v2) R 21775 25568 25567 0 -1 0 173948 0 0 0 5674 327 0 0 25 0 1 0 971387070 696037376 109469 4294967295 134512640 135730672 3221224576 3221103568 134788521 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 169931 109473 301 301 0 169630 0
vsize: 679724
[startup+70.0054 s]
Raw data (loadavg): 0.97 0.94 0.91 2/54 21776
Raw data (stat): 21776 (pb2sat-v2) R 21775 25568 25567 0 -1 0 199056 0 0 0 6619 382 0 0 25 0 1 0 971387070 628924416 109835 4294967295 134512640 135730672 3221224576 3221102976 134770759 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 153546 109835 301 301 0 153245 0
vsize: 614184
[startup+80.0066 s]
Raw data (loadavg): 0.97 0.94 0.91 2/54 21776
Raw data (stat): 21776 (pb2sat-v2) R 21775 25568 25567 0 -1 0 212538 0 0 0 7593 409 0 0 25 0 1 0 971387070 634466304 123101 4294967295 134512640 135730672 3221224576 3221110526 134788698 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 154899 123101 301 301 0 154598 0
vsize: 619596
[startup+90.007 s]
Raw data (loadavg): 0.98 0.94 0.91 2/54 21776
Raw data (stat): 21776 (pb2sat-v2) R 21775 25568 25567 0 -1 0 231318 0 0 0 8559 443 0 0 25 0 1 0 971387070 661512192 141663 4294967295 134512640 135730672 3221224576 3221115040 134770867 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 161502 141664 301 301 0 161201 0
vsize: 646008
[startup+100.008 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 21776
Raw data (stat): 21776 (pb2sat-v2) R 21775 25568 25567 0 -1 0 246442 0 0 0 9530 472 0 0 25 0 1 0 971387070 733605888 156611 4294967295 134512640 135730672 3221224576 3221120696 134787727 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 179103 156612 301 301 0 178802 0
vsize: 716412
[startup+110.009 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 21776
Raw data (stat): 21776 (pb2sat-v2) R 21775 25568 25567 0 -1 0 263973 0 0 0 10495 508 0 0 25 0 1 0 971387070 759660544 173939 4294967295 134512640 135730672 3221224576 3221222512 135282712 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 185464 173939 301 301 0 185163 0
vsize: 741856
[startup+114.854 s]
Raw data (loadavg): 0.98 0.95 0.91 1/53 21776
Raw data (stat): 21776 (pb2sat-v2) R 21775 25568 25567 0 -1 0 263973 0 0 0 10495 508 0 0 25 0 1 0 971387070 759660544 173939 4294967295 134512640 135730672 3221224576 3221222512 135282712 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 185464 173939 301 301 0 185163 0
vsize: 0

Child status: 1
Real time (s): 114.853
CPU time (s): 114.883
CPU user time (s): 109.445
CPU system time (s): 5.43717
CPU usage (%): 100.025
Max. virtual memory (Kb): 741856
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####