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).
    Note that some very long lines in this section may be truncated by your web browser !
  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

Namemps-v2-20-10/MIPLIB/miplib2003/normalized-mps-v2-20-10-cap6000.opb
MD5SUMf72618c4c62a4e83b66d53971e0bdc53
Bench Categoryoptimization, medium integers (OPTMEDINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function -199796
Optimality of the best value was proved NO
Number of terms in the objective function 5995
Biggest coefficient in the objective function 91110
Number of bits for the biggest coefficient in the objective function 17
Sum of the numbers in the objective function 12969603
Number of bits of the sum of numbers in the objective function 24
Biggest number in a constraint 800000
Number of bits of the biggest number in a constraint 20
Biggest sum of numbers in a constraint 28761906
Number of bits of the biggest sum of numbers25
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1195.12
Number of variables6000
Total number of constraints8176
Number of constraints which are clauses222
Number of constraints which are cardinality constraints (but not clauses)7919
Number of constraints which are nor clauses,nor cardinality constraints35
Minimum length of a constraint1
Maximum length of a constraint6000

Trace number 10004

Launcher Data

LAUNCH ON wulflinc31 THE 2005-09-23 16:29:25 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8765 boxname=wulflinc31 idbench=561 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  f72618c4c62a4e83b66d53971e0bdc53  /oldhome/oroussel/tmp/wulflinc31/normalized-mps-v2-20-10-cap6000.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc31/normalized-mps-v2-20-10-cap6000.opb
IDLAUNCH: 8765
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.047
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	: 3
cpu MHz		: 451.047
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:        921088 kB
Buffers:         18924 kB
Cached:          75528 kB
SwapCached:          0 kB
Active:          42624 kB
Inactive:        54752 kB
HighTotal:      131008 kB
HighFree:        51604 kB
LowTotal:       903652 kB
LowFree:        869484 kB
SwapTotal:     2097892 kB
SwapFree:      2097892 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6984 kB
Slab:            10632 kB
Committed_AS:    63664 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-23 16:31:04 (client local time) WITH STATUS 1 IN 99.0209 SECONDS
stats: 8765 7 99.0209 1

Solver Data

c This solver internally uses Chaff 2004.11.15 Simplified

	Unexpected exception :
	St9bad_alloc

Watcher Data

Enforcing CPU limit (will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime (will send SIGXCPU) limit: 1230 seconds
Enforcing Stack size limit: 67108864 bytes
Enforcing memory limit (will send SIGTERM then SIGKILL): 921600 Kb
Enforcing VSIZE limit: 994918400 bytes
Current StackSize limit: 67108864 bytes
Raw data (/proc/8584/stat): 8584 (pb2sat) R 8583 8584 4005 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 21593363 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/8584/statm): 373 2 364 364 0 9 0
[pid=8584] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc31/normalized-mps-v2-20-10-cap6000.opb

[startup+10.0019 s]
Raw data (loadavg): 0.93 0.96 0.94 2/55 8584
Raw data (/proc/8584/stat): 8584 (pb2sat) R 8583 8584 4005 0 -1 0 28651 0 0 0 929 66 0 0 25 0 1 0 21593363 90386432 17538 4294967295 134512640 135987407 3221224560 3219225820 134636959 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8584/statm): 22067 17538 364 364 0 21703 0
[pid=8584] vsize: 88268
Current children cumulated CPU time (s) 9.95
Current children cumulated vsize (Kb) 88268

[startup+20.0029 s]
Raw data (loadavg): 0.94 0.96 0.94 2/55 8584
Raw data (/proc/8584/stat): 8584 (pb2sat) R 8583 8584 4005 0 -1 0 59471 0 0 0 1858 134 0 0 25 0 1 0 21593363 195952640 37130 4294967295 134512640 135987407 3221224560 3219414252 134856360 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8584/statm): 47840 37130 364 364 0 47476 0
[pid=8584] vsize: 191360
Current children cumulated CPU time (s) 19.92
Current children cumulated vsize (Kb) 191360

[startup+30.0038 s]
Raw data (loadavg): 0.95 0.96 0.94 2/55 8584
Raw data (/proc/8584/stat): 8584 (pb2sat) R 8583 8584 4005 0 -1 0 91903 0 0 0 2787 200 0 0 25 0 1 0 21593363 281280512 59616 4294967295 134512640 135987407 3221224560 3219336864 134855001 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8584/statm): 68672 59616 364 364 0 68308 0
[pid=8584] vsize: 274688
Current children cumulated CPU time (s) 29.87
Current children cumulated vsize (Kb) 274688

[startup+40.0037 s]
Raw data (loadavg): 0.96 0.96 0.94 2/55 8584
Raw data (/proc/8584/stat): 8584 (pb2sat) R 8583 8584 4005 0 -1 0 121680 0 0 0 3714 271 0 0 25 0 1 0 21593363 391118848 76886 4294967295 134512640 135987407 3221224560 3219489296 134636917 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8584/statm): 95488 76886 364 364 0 95124 0
[pid=8584] vsize: 381952
Current children cumulated CPU time (s) 39.85
Current children cumulated vsize (Kb) 381952

[startup+50.0047 s]
Raw data (loadavg): 0.96 0.96 0.94 2/55 8584
Raw data (/proc/8584/stat): 8584 (pb2sat) R 8583 8584 4005 0 -1 0 166850 0 0 0 4616 363 0 0 25 0 1 0 21593363 603611136 120849 4294967295 134512640 135987407 3221224560 3219782400 134854956 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8584/statm): 147366 120849 364 364 0 147002 0
[pid=8584] vsize: 589464
Current children cumulated CPU time (s) 49.79
Current children cumulated vsize (Kb) 589464

[startup+60.0056 s]
Raw data (loadavg): 0.97 0.96 0.94 2/55 8584
Raw data (/proc/8584/stat): 8584 (pb2sat) R 8583 8584 4005 0 -1 0 207548 0 0 0 5521 457 0 0 25 0 1 0 21593363 657301504 118332 4294967295 134512640 135987407 3221224560 3219338660 134556840 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8584/statm): 160474 118332 364 364 0 160110 0
[pid=8584] vsize: 641896
Current children cumulated CPU time (s) 59.78
Current children cumulated vsize (Kb) 641896

[startup+70.0065 s]
Raw data (loadavg): 0.97 0.96 0.94 2/55 8584
Raw data (/proc/8584/stat): 8584 (pb2sat) R 8583 8584 4005 0 -1 0 224680 0 0 0 6481 495 0 0 25 0 1 0 21593363 715726848 135248 4294967295 134512640 135987407 3221224560 3219538140 135499901 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8584/statm): 174738 135248 364 364 0 174374 0
[pid=8584] vsize: 698952
Current children cumulated CPU time (s) 69.76
Current children cumulated vsize (Kb) 698952

[startup+80.0075 s]
Raw data (loadavg): 0.98 0.96 0.94 2/55 8584
Raw data (/proc/8584/stat): 8584 (pb2sat) R 8583 8584 4005 0 -1 0 245617 0 0 0 7428 545 0 0 25 0 1 0 21593363 747761664 155936 4294967295 134512640 135987407 3221224560 3219720784 134537352 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8584/statm): 182559 155936 364 364 0 182195 0
[pid=8584] vsize: 730236
Current children cumulated CPU time (s) 79.73
Current children cumulated vsize (Kb) 730236

[startup+90.0074 s]
Raw data (loadavg): 0.98 0.96 0.94 2/55 8584
Raw data (/proc/8584/stat): 8584 (pb2sat) R 8583 8584 4005 0 -1 0 266457 0 0 0 8378 593 0 0 25 0 1 0 21593363 778715136 176520 4294967295 134512640 135987407 3221224560 3219320240 134640325 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8584/statm): 190116 176520 364 364 0 189752 0
[pid=8584] vsize: 760464
Current children cumulated CPU time (s) 89.71
Current children cumulated vsize (Kb) 760464
One traced child (pid=8584) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 99.3364
CPU time (s): 99.0209
CPU user time (s): 92.5299
CPU system time (s): 6.49101
CPU usage (%): 99.6824
Max. virtual memory (cumulated for all children) (Kb): 760464

Verifier Data

ERROR: no interpretation found !