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/miplib/normalized-mps-v2-20-10-misc03.opb
MD5SUM91a12c778773a00a6198e856654cd609
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 1077181440
Optimality of the best value was proved YES
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 1073741824
Number of bits of the biggest number in a constraint 31
Biggest sum of numbers in a constraint 3287149567
Number of bits of the biggest sum of numbers32
Best result obtained on this benchmarkOPTIMUM FOUND
Best CPU time to get the best result obtained on this benchmark88.4496
Number of variables190
Total number of constraints255
Number of constraints which are clauses31
Number of constraints which are cardinality constraints (but not clauses)170
Number of constraints which are nor clauses,nor cardinality constraints54
Minimum length of a constraint1
Maximum length of a constraint169

Trace number 9969

Launcher Data

LAUNCH ON wulflinc17 THE 2005-09-23 16:18:38 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8723 boxname=wulflinc17 idbench=519 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  91a12c778773a00a6198e856654cd609  /oldhome/oroussel/tmp/wulflinc17/normalized-mps-v2-20-10-misc03.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc17/normalized-mps-v2-20-10-misc03.opb
IDLAUNCH: 8723
/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	: 888.83

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	: 901.12

/proc/meminfo:
MemTotal:      1034660 kB
MemFree:        930928 kB
Buffers:         15944 kB
Cached:          69668 kB
SwapCached:          0 kB
Active:          43860 kB
Inactive:        44680 kB
HighTotal:      131008 kB
HighFree:        57036 kB
LowTotal:       903652 kB
LowFree:        873892 kB
SwapTotal:     2097892 kB
SwapFree:      2097892 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:             9648 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-23 16:20:27 (client local time) WITH STATUS 1 IN 109.016 SECONDS
stats: 8723 7 109.016 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/8969/stat): 8969 (pb2sat) R 8968 8969 4060 0 -1 0 18 0 0 0 0 0 0 0 24 0 1 0 21571881 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/8969/statm): 373 2 364 364 0 9 0
[pid=8969] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc17/normalized-mps-v2-20-10-misc03.opb

[startup+10.0023 s]
Raw data (loadavg): 0.98 0.94 0.91 2/55 8969
Raw data (/proc/8969/stat): 8969 (pb2sat) R 8968 8969 4060 0 -1 0 31861 0 0 0 925 71 0 0 25 0 1 0 21571881 99516416 20718 4294967295 134512640 135987407 3221224560 3221191088 134537491 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8969/statm): 24296 20718 364 364 0 23932 0
[pid=8969] vsize: 97184
Current children cumulated CPU time (s) 9.96
Current children cumulated vsize (Kb) 97184

[startup+20.0029 s]
Raw data (loadavg): 0.98 0.94 0.91 2/55 8969
Raw data (/proc/8969/stat): 8969 (pb2sat) R 8968 8969 4060 0 -1 0 62794 0 0 0 1857 137 0 0 25 0 1 0 21571881 194666496 40436 4294967295 134512640 135987407 3221224560 3221197136 134537562 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8969/statm): 47526 40436 364 364 0 47162 0
[pid=8969] vsize: 190104
Current children cumulated CPU time (s) 19.94
Current children cumulated vsize (Kb) 190104

[startup+30.0035 s]
Raw data (loadavg): 0.98 0.94 0.91 2/55 8969
Raw data (/proc/8969/stat): 8969 (pb2sat) R 8968 8969 4060 0 -1 0 105867 0 0 0 2764 226 0 0 25 0 1 0 21571881 327622656 61312 4294967295 134512640 135987407 3221224560 3221204156 134637035 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8969/statm): 79986 61312 364 364 0 79622 0
[pid=8969] vsize: 319944
Current children cumulated CPU time (s) 29.9
Current children cumulated vsize (Kb) 319944

[startup+40.0041 s]
Raw data (loadavg): 0.98 0.94 0.91 2/55 8969
Raw data (/proc/8969/stat): 8969 (pb2sat) R 8968 8969 4060 0 -1 0 124212 0 0 0 3722 265 0 0 25 0 1 0 21571881 385372160 79439 4294967295 134512640 135987407 3221224560 3221192912 134855004 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8969/statm): 94085 79439 364 364 0 93721 0
[pid=8969] vsize: 376340
Current children cumulated CPU time (s) 39.87
Current children cumulated vsize (Kb) 376340

[startup+50.0048 s]
Raw data (loadavg): 0.99 0.94 0.91 2/55 8969
Raw data (/proc/8969/stat): 8969 (pb2sat) R 8968 8969 4060 0 -1 0 153069 0 0 0 4660 323 0 0 25 0 1 0 21571881 569344000 107708 4294967295 134512640 135987407 3221224560 3221196656 134856382 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8969/statm): 139000 107708 364 364 0 138636 0
[pid=8969] vsize: 556000
Current children cumulated CPU time (s) 49.83
Current children cumulated vsize (Kb) 556000

[startup+60.0053 s]
Raw data (loadavg): 0.99 0.94 0.91 2/55 8969
Raw data (/proc/8969/stat): 8969 (pb2sat) R 8968 8969 4060 0 -1 0 209577 0 0 0 5540 440 0 0 25 0 1 0 21571881 649662464 120420 4294967295 134512640 135987407 3221224560 3221192396 134637011 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8969/statm): 158609 120420 364 364 0 158245 0
[pid=8969] vsize: 634436
Current children cumulated CPU time (s) 59.8
Current children cumulated vsize (Kb) 634436

[startup+70.006 s]
Raw data (loadavg): 0.99 0.94 0.91 2/55 8969
Raw data (/proc/8969/stat): 8969 (pb2sat) R 8968 8969 4060 0 -1 0 226188 0 0 0 6502 475 0 0 25 0 1 0 21571881 704708608 136831 4294967295 134512640 135987407 3221224560 3221208400 134637912 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8969/statm): 172048 136831 364 364 0 171684 0
[pid=8969] vsize: 688192
Current children cumulated CPU time (s) 69.77
Current children cumulated vsize (Kb) 688192

[startup+80.0056 s]
Raw data (loadavg): 0.99 0.95 0.91 2/55 8969
Raw data (/proc/8969/stat): 8969 (pb2sat) R 8968 8969 4060 0 -1 0 245257 0 0 0 7458 518 0 0 25 0 1 0 21571881 729309184 155670 4294967295 134512640 135987407 3221224560 3221198992 134865938 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8969/statm): 178054 155670 364 364 0 177690 0
[pid=8969] vsize: 712216
Current children cumulated CPU time (s) 79.76
Current children cumulated vsize (Kb) 712216

[startup+90.0062 s]
Raw data (loadavg): 0.99 0.95 0.91 2/55 8969
Raw data (/proc/8969/stat): 8969 (pb2sat) R 8968 8969 4060 0 -1 0 260616 0 0 0 8426 548 0 0 25 0 1 0 21571881 799645696 170844 4294967295 134512640 135987407 3221224560 3221208704 134877730 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8969/statm): 195226 170844 364 364 0 194862 0
[pid=8969] vsize: 780904
Current children cumulated CPU time (s) 89.74
Current children cumulated vsize (Kb) 780904

[startup+100.006 s]
Raw data (loadavg): 0.99 0.95 0.91 2/55 8969
Raw data (/proc/8969/stat): 8969 (pb2sat) R 8968 8969 4060 0 -1 0 279361 0 0 0 9386 586 0 0 25 0 1 0 21571881 823975936 189363 4294967295 134512640 135987407 3221224560 3221210908 135482121 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8969/statm): 201166 189363 364 364 0 200802 0
[pid=8969] vsize: 804664
Current children cumulated CPU time (s) 99.72
Current children cumulated vsize (Kb) 804664
One traced child (pid=8969) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 109.296
CPU time (s): 109.016
CPU user time (s): 102.666
CPU system time (s): 6.35003
CPU usage (%): 99.7445
Max. virtual memory (cumulated for all children) (Kb): 804664

Verifier Data

ERROR: no interpretation found !