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-misc07.opb
MD5SUMb8ad25b48a93aa2545086c9eaeaee0ef
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 1076618240
Optimality of the best value was proved NO
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 3287948287
Number of bits of the biggest sum of numbers32
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1195.12
Number of variables290
Total number of constraints471
Number of constraints which are clauses127
Number of constraints which are cardinality constraints (but not clauses)272
Number of constraints which are nor clauses,nor cardinality constraints72
Minimum length of a constraint1
Maximum length of a constraint263

Trace number 10024

Launcher Data

LAUNCH ON wulflinc26 THE 2005-09-23 16:35:53 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8780 boxname=wulflinc26 idbench=576 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  b8ad25b48a93aa2545086c9eaeaee0ef  /oldhome/oroussel/tmp/wulflinc26/normalized-mps-v2-20-10-misc07.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc26/normalized-mps-v2-20-10-misc07.opb
IDLAUNCH: 8780
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.055
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		: 451.055
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:        925760 kB
Buffers:         11296 kB
Cached:          80776 kB
SwapCached:          0 kB
Active:          44308 kB
Inactive:        50660 kB
HighTotal:      131008 kB
HighFree:        47348 kB
LowTotal:       903652 kB
LowFree:        878412 kB
SwapTotal:     2097892 kB
SwapFree:      2097892 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6976 kB
Slab:             8456 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-23 16:37:40 (client local time) WITH STATUS 1 IN 107.239 SECONDS
stats: 8780 7 107.239 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/8003/stat): 8003 (pb2sat) R 8002 8003 4005 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 21638317 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/8003/statm): 373 2 364 364 0 9 0
[pid=8003] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc26/normalized-mps-v2-20-10-misc07.opb

[startup+10.0019 s]
Raw data (loadavg): 0.93 0.97 0.95 2/55 8003
Raw data (/proc/8003/stat): 8003 (pb2sat) R 8002 8003 4005 0 -1 0 32180 0 0 0 931 65 0 0 25 0 1 0 21638317 99594240 21031 4294967295 134512640 135987407 3221224560 3221207424 134556946 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8003/statm): 24315 21031 364 364 0 23951 0
[pid=8003] vsize: 97260
Current children cumulated CPU time (s) 9.96
Current children cumulated vsize (Kb) 97260

[startup+20.0026 s]
Raw data (loadavg): 0.94 0.97 0.95 2/55 8003
Raw data (/proc/8003/stat): 8003 (pb2sat) R 8002 8003 4005 0 -1 0 63713 0 0 0 1866 128 0 0 25 0 1 0 21638317 196231168 41344 4294967295 134512640 135987407 3221224560 3221187248 134856672 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8003/statm): 47908 41344 364 364 0 47544 0
[pid=8003] vsize: 191632
Current children cumulated CPU time (s) 19.94
Current children cumulated vsize (Kb) 191632

[startup+30.0033 s]
Raw data (loadavg): 0.95 0.97 0.95 2/55 8003
Raw data (/proc/8003/stat): 8003 (pb2sat) R 8002 8003 4005 0 -1 0 106466 0 0 0 2776 214 0 0 25 0 1 0 21638317 362201088 61904 4294967295 134512640 135987407 3221224560 3221164016 134877708 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8003/statm): 88428 61904 364 364 0 88064 0
[pid=8003] vsize: 353712
Current children cumulated CPU time (s) 29.9
Current children cumulated vsize (Kb) 353712

[startup+40.003 s]
Raw data (loadavg): 0.96 0.97 0.95 2/55 8003
Raw data (/proc/8003/stat): 8003 (pb2sat) R 8002 8003 4005 0 -1 0 125912 0 0 0 3737 250 0 0 25 0 1 0 21638317 388288512 81120 4294967295 134512640 135987407 3221224560 3221191728 134636949 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8003/statm): 94797 81120 364 364 0 94433 0
[pid=8003] vsize: 379188
Current children cumulated CPU time (s) 39.87
Current children cumulated vsize (Kb) 379188

[startup+50.0037 s]
Raw data (loadavg): 0.96 0.97 0.95 2/55 8003
Raw data (/proc/8003/stat): 8003 (pb2sat) R 8002 8003 4005 0 -1 0 164434 0 0 0 4657 327 0 0 25 0 1 0 21638317 588345344 118698 4294967295 134512640 135987407 3221224560 3221195984 134856702 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8003/statm): 143639 118698 364 364 0 143275 0
[pid=8003] vsize: 574556
Current children cumulated CPU time (s) 49.84
Current children cumulated vsize (Kb) 574556

[startup+60.0034 s]
Raw data (loadavg): 0.97 0.97 0.95 2/55 8003
Raw data (/proc/8003/stat): 8003 (pb2sat) R 8002 8003 4005 0 -1 0 211819 0 0 0 5552 428 0 0 25 0 1 0 21638317 652713984 122636 4294967295 134512640 135987407 3221224560 3221180844 134669203 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8003/statm): 159354 122636 364 364 0 158990 0
[pid=8003] vsize: 637416
Current children cumulated CPU time (s) 59.8
Current children cumulated vsize (Kb) 637416

[startup+70.004 s]
Raw data (loadavg): 0.97 0.97 0.95 2/55 8003
Raw data (/proc/8003/stat): 8003 (pb2sat) R 8002 8003 4005 0 -1 0 228757 0 0 0 6515 463 0 0 25 0 1 0 21638317 708165632 139370 4294967295 134512640 135987407 3221224560 3221188256 134856702 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8003/statm): 172892 139370 364 364 0 172528 0
[pid=8003] vsize: 691568
Current children cumulated CPU time (s) 69.78
Current children cumulated vsize (Kb) 691568

[startup+80.0047 s]
Raw data (loadavg): 0.98 0.97 0.95 2/55 8003
Raw data (/proc/8003/stat): 8003 (pb2sat) R 8002 8003 4005 0 -1 0 248259 0 0 0 7472 505 0 0 25 0 1 0 21638317 733442048 158638 4294967295 134512640 135987407 3221224560 3221167196 134637002 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8003/statm): 179063 158638 364 364 0 178699 0
[pid=8003] vsize: 716252
Current children cumulated CPU time (s) 79.77
Current children cumulated vsize (Kb) 716252

[startup+90.0044 s]
Raw data (loadavg): 0.98 0.97 0.95 2/55 8003
Raw data (/proc/8003/stat): 8003 (pb2sat) R 8002 8003 4005 0 -1 0 263870 0 0 0 8438 536 0 0 25 0 1 0 21638317 804048896 174061 4294967295 134512640 135987407 3221224560 3221203184 134537491 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8003/statm): 196301 174061 364 364 0 195937 0
[pid=8003] vsize: 785204
Current children cumulated CPU time (s) 89.74
Current children cumulated vsize (Kb) 785204

[startup+100.005 s]
Raw data (loadavg): 0.98 0.97 0.95 2/55 8003
Raw data (/proc/8003/stat): 8003 (pb2sat) R 8002 8003 4005 0 -1 0 283211 0 0 0 9396 576 0 0 25 0 1 0 21638317 829054976 193170 4294967295 134512640 135987407 3221224560 3221199788 134637002 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8003/statm): 202406 193170 364 364 0 202042 0
[pid=8003] vsize: 809624
Current children cumulated CPU time (s) 99.72
Current children cumulated vsize (Kb) 809624
One traced child (pid=8003) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 107.517
CPU time (s): 107.239
CPU user time (s): 101.069
CPU system time (s): 6.17006
CPU usage (%): 99.7415
Max. virtual memory (cumulated for all children) (Kb): 809624

Verifier Data

ERROR: no interpretation found !