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/miplib/normalized-mps-v2-20-10-bell5.opb
MD5SUMe2343a1c48cef657bed9677a2fcc9921
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 2147483647
Optimality of the best value was proved NO
Number of terms in the objective function 1268
Biggest coefficient in the objective function 50331648000000000
Number of bits for the biggest coefficient in the objective function 56
Sum of the numbers in the objective function 888722133694353611
Number of bits of the sum of numbers in the objective function 60
Biggest number in a constraint 50331648000000000
Number of bits of the biggest number in a constraint 56
Biggest sum of numbers in a constraint 888722133694353611
Number of bits of the biggest sum of numbers60
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1231.56
Number of variables1704
Total number of constraints149
Number of constraints which are clauses15
Number of constraints which are cardinality constraints (but not clauses)30
Number of constraints which are nor clauses,nor cardinality constraints104
Minimum length of a constraint1
Maximum length of a constraint135

Trace number 35133 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc21 THE 2005-05-28 12:17:30 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24431 boxname=wulflinc21 idbench=903 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  e2343a1c48cef657bed9677a2fcc9921  /oldhome/oroussel/tmp/wulflinc21/normalized-mps-v2-20-10-bell5.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc21/normalized-mps-v2-20-10-bell5.opb
IDLAUNCH: 24431
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.161
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	: 3
cpu MHz		: 451.161
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:        852796 kB
Buffers:         34156 kB
Cached:         124552 kB
SwapCached:        956 kB
Active:          51604 kB
Inactive:       109268 kB
HighTotal:      131008 kB
HighFree:         4480 kB
LowTotal:       903652 kB
LowFree:        848316 kB
SwapTotal:     2097892 kB
SwapFree:      2096012 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5136 kB
Slab:            15308 kB
Committed_AS:    63900 kB
PageTables:        332 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-28 12:19:22 (client local time) WITH STATUS 1 IN 112.316 SECONDS
stats: 24431 7 112.316 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 0.95 0.90 2/55 13476
Raw data (stat): 13476 (runsolver) R 13475 32363 32362 0 -1 64 8 0 0 0 0 0 0 0 20 0 1 0 742003750 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+10.0003 s]
Raw data (loadavg): 0.93 0.95 0.91 2/55 13476
Raw data (stat): 13476 (pb2sat) R 13475 32363 32362 0 -1 0 29613 0 0 0 940 59 0 0 25 0 1 0 742003750 90824704 18462 4294967295 134512640 135726644 3221224576 3220699760 134606387 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 22174 18462 300 300 0 21874 0
vsize: 88696
[startup+20 s]
Raw data (loadavg): 0.94 0.96 0.91 2/55 13476
Raw data (stat): 13476 (pb2sat) R 13475 32363 32362 0 -1 0 57825 0 0 0 1885 114 0 0 25 0 1 0 742003750 177127424 35448 4294967295 134512640 135726644 3221224576 3220705292 134604449 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 43244 35448 300 300 0 42944 0
vsize: 172976
[startup+30.0006 s]
Raw data (loadavg): 0.95 0.96 0.91 2/55 13476
Raw data (stat): 13476 (pb2sat) R 13475 32363 32362 0 -1 0 95867 0 0 0 2810 189 0 0 25 0 1 0 742003750 294875136 51300 4294967295 134512640 135726644 3221224576 3220696528 134554691 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 71991 51300 300 300 0 71691 0
vsize: 287964
[startup+40.0003 s]
Raw data (loadavg): 0.96 0.96 0.91 2/55 13476
Raw data (stat): 13476 (pb2sat) R 13475 32363 32362 0 -1 0 112312 0 0 0 3780 219 0 0 25 0 1 0 742003750 347414528 67526 4294967295 134512640 135726644 3221224576 3220700416 135278589 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 84818 67526 300 300 0 84518 0
vsize: 339272
[startup+50.001 s]
Raw data (loadavg): 0.96 0.96 0.91 2/55 13476
Raw data (stat): 13476 (pb2sat) R 13475 32363 32362 0 -1 0 154747 0 0 0 4707 292 0 0 25 0 1 0 742003750 552910848 108807 4294967295 134512640 135726644 3221224576 3220706152 134771851 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 134988 108807 300 300 0 134688 0
vsize: 539952
[startup+60.0007 s]
Raw data (loadavg): 0.97 0.96 0.91 2/55 13476
Raw data (stat): 13476 (pb2sat) R 13475 32363 32362 0 -1 0 187848 0 0 0 5639 361 0 0 25 0 1 0 742003750 689156096 123262 4294967295 134512640 135726644 3221224576 3220702192 134784885 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 168251 123262 300 300 0 167951 0
vsize: 673004
[startup+70.0008 s]
Raw data (loadavg): 0.97 0.96 0.91 2/55 13476
Raw data (stat): 13476 (pb2sat) R 13475 32363 32362 0 -1 0 200709 0 0 0 6609 391 0 0 25 0 1 0 742003750 622718976 111347 4294967295 134512640 135726644 3221224576 3220699692 134604449 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 152031 111347 300 300 0 151731 0
vsize: 608124
[startup+80.001 s]
Raw data (loadavg): 0.98 0.96 0.91 2/55 13476
Raw data (stat): 13476 (pb2sat) R 13475 32363 32362 0 -1 0 220355 0 0 0 7574 426 0 0 25 0 1 0 742003750 652791808 130763 4294967295 134512640 135726644 3221224576 3220701328 134554559 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 159373 130763 300 300 0 159073 0
vsize: 637492
[startup+90.0007 s]
Raw data (loadavg): 0.98 0.96 0.91 2/55 13476
Raw data (stat): 13476 (pb2sat) R 13475 32363 32362 0 -1 0 239755 0 0 0 8539 461 0 0 25 0 1 0 742003750 682143744 149933 4294967295 134512640 135726644 3221224576 3220702128 134554691 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 166539 149933 300 300 0 166239 0
vsize: 666156
[startup+100.001 s]
Raw data (loadavg): 0.98 0.96 0.91 2/55 13476
Raw data (stat): 13476 (pb2sat) R 13475 32363 32362 0 -1 0 255001 0 0 0 9510 490 0 0 25 0 1 0 742003750 755163136 164998 4294967295 134512640 135726644 3221224576 3220712000 134780450 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 184366 164998 300 300 0 184066 0
vsize: 737464
[startup+110.002 s]
Raw data (loadavg): 0.98 0.96 0.91 2/55 13476
Raw data (stat): 13476 (pb2sat) R 13475 32363 32362 0 -1 0 257515 0 0 0 10493 508 0 0 25 0 1 0 742003750 399261696 96924 4294967295 134512640 135726644 3221224576 3221222764 135277555 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 97476 96924 300 300 0 97176 0
vsize: 389904
[startup+112.305 s]
Raw data (loadavg): 0.98 0.96 0.91 1/54 13476
Raw data (stat): 13476 (pb2sat) R 13475 32363 32362 0 -1 0 257515 0 0 0 10493 508 0 0 25 0 1 0 742003750 399261696 96924 4294967295 134512640 135726644 3221224576 3221222764 135277555 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 97476 96924 300 300 0 97176 0
vsize: 0

Child status: 1
Real time (s): 112.304
CPU time (s): 112.316
CPU user time (s): 107.024
CPU system time (s): 5.29219
CPU usage (%): 100.01
Max. virtual memory (Kb): 737464
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####