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/MIPLIB/miplib2003/normalized-mps-v2-20-10-noswot.opb
MD5SUMce1061a060a0716eafe03a61d610732a
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function -41
Optimality of the best value was proved NO
Number of terms in the objective function 425
Biggest coefficient in the objective function 65536
Number of bits for the biggest coefficient in the objective function 17
Sum of the numbers in the objective function 3276775
Number of bits of the sum of numbers in the objective function 22
Biggest number in a constraint 41943040000000
Number of bits of the biggest number in a constraint 46
Biggest sum of numbers in a constraint 204183950227182
Number of bits of the biggest sum of numbers48
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark145.757
Number of variables1340
Total number of constraints282
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)75
Number of constraints which are nor clauses,nor cardinality constraints207
Minimum length of a constraint1
Maximum length of a constraint425

Trace number 42469 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc4 THE 2005-06-16 08:23:37 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25688 boxname=wulflinc4 idbench=988 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  ce1061a060a0716eafe03a61d610732a  /oldhome/oroussel/tmp/wulflinc4/normalized-mps-v2-20-10-noswot.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc4/normalized-mps-v2-20-10-noswot.opb
IDLAUNCH: 25688
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.169
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		: 451.169
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:        696504 kB
Buffers:         34516 kB
Cached:         281692 kB
SwapCached:        944 kB
Active:          31748 kB
Inactive:       286556 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        696252 kB
SwapTotal:     2097136 kB
SwapFree:      2095208 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           4996 kB
Slab:            14064 kB
Committed_AS:    71908 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 08:25:22 (client local time) WITH STATUS 1 IN 104.743 SECONDS
stats: 25688 7 104.743 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 0.97 0.91 1/54 23839
Raw data (stat): 23839 (runsolver) R 23838 21152 21151 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 969285379 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+10.0015 s]
Raw data (loadavg): 0.93 0.97 0.91 2/54 23839
Raw data (stat): 23839 (pb2sat-v2) R 23838 21152 21151 0 -1 0 29159 0 0 0 941 58 0 0 25 0 1 0 969285379 89452544 18236 4294967295 134512640 135730672 3221224576 3221189264 134786244 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 21839 18236 301 301 0 21538 0
vsize: 87356
[startup+20.0018 s]
Raw data (loadavg): 0.94 0.97 0.91 2/54 23839
Raw data (stat): 23839 (pb2sat-v2) R 23838 21152 21151 0 -1 0 57413 0 0 0 1888 111 0 0 25 0 1 0 969285379 176267264 35516 4294967295 134512640 135730672 3221224576 3221193952 134770605 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 43034 35517 301 301 0 42733 0
vsize: 172136
[startup+30.0027 s]
Raw data (loadavg): 0.95 0.97 0.91 2/54 23839
Raw data (stat): 23839 (pb2sat-v2) R 23838 21152 21151 0 -1 0 95068 0 0 0 2817 181 0 0 25 0 1 0 969285379 291364864 51484 4294967295 134512640 135730672 3221224576 3221188344 134549173 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 71134 51484 301 301 0 70833 0
vsize: 284536
[startup+40.0032 s]
Raw data (loadavg): 0.96 0.97 0.91 2/54 23839
Raw data (stat): 23839 (pb2sat-v2) R 23838 21152 21151 0 -1 0 112580 0 0 0 3782 217 0 0 25 0 1 0 969285379 347762688 68756 4294967295 134512640 135730672 3221224576 3221192560 134546483 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 84903 68757 301 301 0 84602 0
vsize: 339612
[startup+50.0035 s]
Raw data (loadavg): 0.96 0.97 0.91 2/54 23839
Raw data (stat): 23839 (pb2sat-v2) R 23838 21152 21151 0 -1 0 153380 0 0 0 4707 292 0 0 25 0 1 0 969285379 480280576 90969 4294967295 134512640 135730672 3221224576 3221190324 135281170 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 117256 90969 301 301 0 116955 0
vsize: 469024
[startup+60.0033 s]
Raw data (loadavg): 0.97 0.97 0.91 2/54 23839
Raw data (stat): 23839 (pb2sat-v2) R 23838 21152 21151 0 -1 0 189043 0 0 0 5634 365 0 0 25 0 1 0 969285379 589336576 101859 4294967295 134512640 135730672 3221224576 3221195808 134546366 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 143881 101860 301 301 0 143580 0
vsize: 575524
[startup+70.0035 s]
Raw data (loadavg): 0.97 0.97 0.91 2/54 23839
Raw data (stat): 23839 (pb2sat-v2) R 23838 21152 21151 0 -1 0 200815 0 0 0 6613 386 0 0 25 0 1 0 969285379 624783360 113413 4294967295 134512640 135730672 3221224576 3221188936 134787727 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 152535 113413 301 301 0 152234 0
vsize: 610140
[startup+80.0041 s]
Raw data (loadavg): 0.98 0.97 0.91 2/54 23839
Raw data (stat): 23839 (pb2sat-v2) R 23838 21152 21151 0 -1 0 220843 0 0 0 7571 428 0 0 25 0 1 0 969285379 654655488 133191 4294967295 134512640 135730672 3221224576 3221193904 134786871 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 159828 133191 301 301 0 159527 0
vsize: 639312
[startup+90.0039 s]
Raw data (loadavg): 0.98 0.97 0.91 2/54 23839
Raw data (stat): 23839 (pb2sat-v2) R 23838 21152 21151 0 -1 0 240691 0 0 0 8534 465 0 0 25 0 1 0 969285379 684257280 152791 4294967295 134512640 135730672 3221224576 3221192648 134787727 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 167055 152791 301 301 0 166754 0
vsize: 668220
[startup+100.005 s]
Raw data (loadavg): 0.98 0.97 0.91 2/54 23839
Raw data (stat): 23839 (pb2sat-v2) R 23838 21152 21151 0 -1 0 249884 0 0 0 9504 496 0 0 25 0 1 0 969285379 391929856 94533 4294967295 134512640 135730672 3221224576 3221222764 135281170 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 95686 94533 301 301 0 95385 0
vsize: 382744
[startup+104.75 s]
Raw data (loadavg): 0.98 0.97 0.91 1/53 23839
Raw data (stat): 23839 (pb2sat-v2) R 23838 21152 21151 0 -1 0 249884 0 0 0 9504 496 0 0 25 0 1 0 969285379 391929856 94533 4294967295 134512640 135730672 3221224576 3221222764 135281170 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 95686 94533 301 301 0 95385 0
vsize: 0

Child status: 1
Real time (s): 104.75
CPU time (s): 104.743
CPU user time (s): 99.5789
CPU system time (s): 5.16421
CPU usage (%): 99.9935
Max. virtual memory (Kb): 668220
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####