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/miplib3/normalized-mps-v2-20-10-swath.opb
MD5SUM88ff0d04f1767526eb86ccd93c80fd2c
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 31
Biggest coefficient in the objective function 1073741824
Number of bits for the biggest coefficient in the objective function 31
Sum of the numbers in the objective function 2147483647
Number of bits of the sum of numbers in the objective function 31
Biggest number in a constraint 16777216000000
Number of bits of the biggest number in a constraint 44
Biggest sum of numbers in a constraint 66042304016951
Number of bits of the biggest sum of numbers46
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Number of variables9155
Total number of constraints7608
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)7147
Number of constraints which are nor clauses,nor cardinality constraints461
Minimum length of a constraint1
Maximum length of a constraint6754

Trace number 10116

Launcher Data

LAUNCH ON wulflinc22 THE 2005-09-23 17:02:04 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8872 boxname=wulflinc22 idbench=668 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  88ff0d04f1767526eb86ccd93c80fd2c  /oldhome/oroussel/tmp/wulflinc22/normalized-mps-v2-20-10-swath.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc22/normalized-mps-v2-20-10-swath.opb
IDLAUNCH: 8872
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 450.985
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		: 450.985
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:        917832 kB
Buffers:         12132 kB
Cached:          87284 kB
SwapCached:          0 kB
Active:          48012 kB
Inactive:        54268 kB
HighTotal:      131008 kB
HighFree:        43428 kB
LowTotal:       903652 kB
LowFree:        874404 kB
SwapTotal:     2097892 kB
SwapFree:      2097892 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:             8952 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-23 17:03:43 (client local time) WITH STATUS 1 IN 97.9911 SECONDS
stats: 8872 7 97.9911 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/8491/stat): 8491 (pb2sat) R 8490 8491 4060 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 21829300 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/8491/statm): 373 2 364 364 0 9 0
[pid=8491] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc22/normalized-mps-v2-20-10-swath.opb

[startup+10.0018 s]
Raw data (loadavg): 0.93 0.96 0.95 2/55 8491
Raw data (/proc/8491/stat): 8491 (pb2sat) R 8490 8491 4060 0 -1 0 28984 0 0 0 926 69 0 0 25 0 1 0 21829300 90558464 17856 4294967295 134512640 135987407 3221224560 3218965900 135499996 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8491/statm): 22109 17856 364 364 0 21745 0
[pid=8491] vsize: 88436
Current children cumulated CPU time (s) 9.95
Current children cumulated vsize (Kb) 88436

[startup+20.0025 s]
Raw data (loadavg): 0.94 0.96 0.95 2/55 8491
Raw data (/proc/8491/stat): 8491 (pb2sat) R 8490 8491 4060 0 -1 0 59914 0 0 0 1856 136 0 0 25 0 1 0 21829300 196558848 37542 4294967295 134512640 135987407 3221224560 3218983156 135478476 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8491/statm): 47988 37542 364 364 0 47624 0
[pid=8491] vsize: 191952
Current children cumulated CPU time (s) 19.92
Current children cumulated vsize (Kb) 191952

[startup+30.0032 s]
Raw data (loadavg): 0.95 0.96 0.95 2/55 8491
Raw data (/proc/8491/stat): 8491 (pb2sat) R 8490 8491 4060 0 -1 0 92558 0 0 0 2784 204 0 0 25 0 1 0 21829300 283566080 60225 4294967295 134512640 135987407 3221224560 3218990764 135500006 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8491/statm): 69230 60225 364 364 0 68866 0
[pid=8491] vsize: 276920
Current children cumulated CPU time (s) 29.88
Current children cumulated vsize (Kb) 276920

[startup+40.004 s]
Raw data (loadavg): 0.96 0.96 0.95 2/55 8491
Raw data (/proc/8491/stat): 8491 (pb2sat) R 8490 8491 4060 0 -1 0 121955 0 0 0 3719 268 0 0 25 0 1 0 21829300 392876032 77101 4294967295 134512640 135987407 3221224560 3219024744 135488133 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8491/statm): 95917 77101 364 364 0 95553 0
[pid=8491] vsize: 383668
Current children cumulated CPU time (s) 39.87
Current children cumulated vsize (Kb) 383668

[startup+50.0047 s]
Raw data (loadavg): 0.96 0.96 0.95 2/55 8491
Raw data (/proc/8491/stat): 8491 (pb2sat) R 8490 8491 4060 0 -1 0 165394 0 0 0 4624 359 0 0 25 0 1 0 21829300 532897792 100905 4294967295 134512640 135987407 3221224560 3219598408 135293361 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8491/statm): 130102 100905 364 364 0 129738 0
[pid=8491] vsize: 520408
Current children cumulated CPU time (s) 49.83
Current children cumulated vsize (Kb) 520408

[startup+60.0044 s]
Raw data (loadavg): 0.97 0.96 0.95 2/55 8491
Raw data (/proc/8491/stat): 8491 (pb2sat) R 8490 8491 4060 0 -1 0 185231 0 0 0 5576 404 0 0 25 0 1 0 21829300 562229248 120473 4294967295 134512640 135987407 3221224560 3218975344 134866053 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8491/statm): 137263 120473 364 364 0 136899 0
[pid=8491] vsize: 549052
Current children cumulated CPU time (s) 59.8
Current children cumulated vsize (Kb) 549052

[startup+70.0051 s]
Raw data (loadavg): 0.97 0.96 0.95 2/55 8491
Raw data (/proc/8491/stat): 8491 (pb2sat) R 8490 8491 4060 0 -1 0 226590 0 0 0 6484 495 0 0 25 0 1 0 21829300 687497216 137027 4294967295 134512640 135987407 3221224560 3218996928 134861029 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8491/statm): 167846 137027 364 364 0 167482 0
[pid=8491] vsize: 671384
Current children cumulated CPU time (s) 69.79
Current children cumulated vsize (Kb) 671384

[startup+80.0058 s]
Raw data (loadavg): 0.98 0.96 0.95 2/55 8491
Raw data (/proc/8491/stat): 8491 (pb2sat) R 8490 8491 4060 0 -1 0 242894 0 0 0 7441 534 0 0 25 0 1 0 21829300 745304064 153110 4294967295 134512640 135987407 3221224560 3218969040 134861764 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8491/statm): 181959 153110 364 364 0 181595 0
[pid=8491] vsize: 727836
Current children cumulated CPU time (s) 79.75
Current children cumulated vsize (Kb) 727836

[startup+90.0065 s]
Raw data (loadavg): 0.98 0.96 0.95 2/55 8491
Raw data (/proc/8491/stat): 8491 (pb2sat) R 8490 8491 4060 0 -1 0 262261 0 0 0 8395 578 0 0 25 0 1 0 21829300 778014720 172218 4294967295 134512640 135987407 3221224560 3219066224 135290071 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8491/statm): 189945 172218 364 364 0 189581 0
[pid=8491] vsize: 759780
Current children cumulated CPU time (s) 89.73
Current children cumulated vsize (Kb) 759780
One traced child (pid=8491) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 98.262
CPU time (s): 97.9911
CPU user time (s): 91.857
CPU system time (s): 6.13407
CPU usage (%): 99.7243
Max. virtual memory (cumulated for all children) (Kb): 759780

Verifier Data

ERROR: no interpretation found !