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-gesa2.opb
MD5SUMcc2ab9cbda3b73ffdc0f995958f9051d
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
Satisfiable
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of terms in the objective function 13488
Biggest coefficient in the objective function 418848431931392
Number of bits for the biggest coefficient in the objective function 49
Sum of the numbers in the objective function 180205740755072640
Number of bits of the sum of numbers in the objective function 58
Biggest number in a constraint 418848431931392
Number of bits of the biggest number in a constraint 49
Biggest sum of numbers in a constraint 180205740755072640
Number of bits of the biggest sum of numbers58
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Number of variables19344
Total number of constraints2112
Number of constraints which are clauses48
Number of constraints which are cardinality constraints (but not clauses)240
Number of constraints which are nor clauses,nor cardinality constraints1824
Minimum length of a constraint1
Maximum length of a constraint309

Trace number 10010

Launcher Data

LAUNCH ON wulflinc23 THE 2005-09-23 16:31:16 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8770 boxname=wulflinc23 idbench=566 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  cc2ab9cbda3b73ffdc0f995958f9051d  /oldhome/oroussel/tmp/wulflinc23/normalized-mps-v2-20-10-gesa2.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc23/normalized-mps-v2-20-10-gesa2.opb
IDLAUNCH: 8770
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.185
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		: 451.185
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	: 901.12

/proc/meminfo:
MemTotal:      1034660 kB
MemFree:        917184 kB
Buffers:         14304 kB
Cached:          84636 kB
SwapCached:          0 kB
Active:          60808 kB
Inactive:        41048 kB
HighTotal:      131008 kB
HighFree:        42140 kB
LowTotal:       903652 kB
LowFree:        875044 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:            10064 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 16:33:06 (client local time) WITH STATUS 1 IN 109.529 SECONDS
stats: 8770 7 109.529 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/8291/stat): 8291 (pb2sat) R 8290 8291 4060 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 21641984 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/8291/statm): 373 2 364 364 0 9 0
[pid=8291] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc23/normalized-mps-v2-20-10-gesa2.opb

[startup+10.0027 s]
Raw data (loadavg): 0.91 0.93 0.94 2/55 8291
Raw data (/proc/8291/stat): 8291 (pb2sat) R 8290 8291 4060 0 -1 0 26412 0 0 0 943 52 0 0 25 0 1 0 21641984 97689600 18354 4294967295 134512640 135987407 3221224560 3221121616 134887487 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8291/statm): 23850 18354 364 364 0 23486 0
[pid=8291] vsize: 95400
Current children cumulated CPU time (s) 9.95
Current children cumulated vsize (Kb) 95400

[startup+20.0033 s]
Raw data (loadavg): 0.93 0.93 0.94 2/55 8291
Raw data (/proc/8291/stat): 8291 (pb2sat) R 8290 8291 4060 0 -1 0 57144 0 0 0 1876 116 0 0 25 0 1 0 21641984 189652992 34790 4294967295 134512640 135987407 3221224560 3221120572 135479997 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8291/statm): 46302 34790 364 364 0 45938 0
[pid=8291] vsize: 185208
Current children cumulated CPU time (s) 19.92
Current children cumulated vsize (Kb) 185208

[startup+30.0029 s]
Raw data (loadavg): 0.94 0.94 0.94 2/55 8291
Raw data (/proc/8291/stat): 8291 (pb2sat) R 8290 8291 4060 0 -1 0 89237 0 0 0 2813 175 0 0 25 0 1 0 21641984 274784256 56808 4294967295 134512640 135987407 3221224560 3221120128 134878027 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8291/statm): 67086 56808 364 364 0 66722 0
[pid=8291] vsize: 268344
Current children cumulated CPU time (s) 29.88
Current children cumulated vsize (Kb) 268344

[startup+40.0036 s]
Raw data (loadavg): 0.95 0.94 0.94 2/55 8291
Raw data (/proc/8291/stat): 8291 (pb2sat) R 8290 8291 4060 0 -1 0 118221 0 0 0 3746 241 0 0 25 0 1 0 21641984 382472192 73298 4294967295 134512640 135987407 3221224560 3221124256 134537363 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8291/statm): 93377 73298 364 364 0 93013 0
[pid=8291] vsize: 373508
Current children cumulated CPU time (s) 39.87
Current children cumulated vsize (Kb) 373508

[startup+50.0042 s]
Raw data (loadavg): 0.95 0.94 0.94 2/55 8291
Raw data (/proc/8291/stat): 8291 (pb2sat) R 8290 8291 4060 0 -1 0 140805 0 0 0 4700 285 0 0 25 0 1 0 21641984 557981696 95528 4294967295 134512640 135987407 3221224560 3221120080 134856382 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8291/statm): 136226 95528 364 364 0 135862 0
[pid=8291] vsize: 544904
Current children cumulated CPU time (s) 49.85
Current children cumulated vsize (Kb) 544904

[startup+60.0043 s]
Raw data (loadavg): 0.96 0.94 0.94 2/55 8291
Raw data (/proc/8291/stat): 8291 (pb2sat) R 8290 8291 4060 0 -1 0 185984 0 0 0 5603 375 0 0 25 0 1 0 21641984 751693824 120782 4294967295 134512640 135987407 3221224560 3221123296 134887487 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8291/statm): 183519 120782 364 364 0 183155 0
[pid=8291] vsize: 734076
Current children cumulated CPU time (s) 59.78
Current children cumulated vsize (Kb) 734076

[startup+70.0045 s]
Raw data (loadavg): 0.97 0.94 0.94 2/55 8291
Raw data (/proc/8291/stat): 8291 (pb2sat) R 8290 8291 4060 0 -1 0 220784 0 0 0 6522 455 0 0 25 0 1 0 21641984 705126400 130814 4294967295 134512640 135987407 3221224560 3221122720 134877708 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8291/statm): 172150 130814 364 364 0 171786 0
[pid=8291] vsize: 688600
Current children cumulated CPU time (s) 69.77
Current children cumulated vsize (Kb) 688600

[startup+80.0041 s]
Raw data (loadavg): 0.97 0.94 0.94 2/55 8291
Raw data (/proc/8291/stat): 8291 (pb2sat) R 8290 8291 4060 0 -1 0 238226 0 0 0 7486 489 0 0 25 0 1 0 21641984 728780800 148035 4294967295 134512640 135987407 3221224560 3221119216 134537562 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8291/statm): 177925 148035 364 364 0 177561 0
[pid=8291] vsize: 711700
Current children cumulated CPU time (s) 79.75
Current children cumulated vsize (Kb) 711700

[startup+90.0048 s]
Raw data (loadavg): 0.98 0.94 0.94 2/55 8291
Raw data (/proc/8291/stat): 8291 (pb2sat) R 8290 8291 4060 0 -1 0 257130 0 0 0 8446 526 0 0 25 0 1 0 21641984 755552256 166707 4294967295 134512640 135987407 3221224560 3221122716 135499903 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8291/statm): 184461 166707 364 364 0 184097 0
[pid=8291] vsize: 737844
Current children cumulated CPU time (s) 89.72
Current children cumulated vsize (Kb) 737844

[startup+100.004 s]
Raw data (loadavg): 0.98 0.95 0.94 2/55 8291
Raw data (/proc/8291/stat): 8291 (pb2sat) R 8290 8291 4060 0 -1 0 274441 0 0 0 9406 563 0 0 25 0 1 0 21641984 831930368 183812 4294967295 134512640 135987407 3221224560 3221120704 134877628 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8291/statm): 203108 183812 364 364 0 202744 0
[pid=8291] vsize: 812432
Current children cumulated CPU time (s) 99.69
Current children cumulated vsize (Kb) 812432
One traced child (pid=8291) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 109.845
CPU time (s): 109.529
CPU user time (s): 103.473
CPU system time (s): 6.05608
CPU usage (%): 99.7125
Max. virtual memory (cumulated for all children) (Kb): 812432

Verifier Data

ERROR: no interpretation found !