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-manna81.opb
MD5SUM8ad66f5ec9923fdfb526351beaad3554
Bench Categoryoptimization, small integers (OPTSMALLINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function -11317
Optimality of the best value was proved NO
Number of terms in the objective function 10713
Biggest coefficient in the objective function 8
Number of bits for the biggest coefficient in the objective function 4
Sum of the numbers in the objective function 30411
Number of bits of the sum of numbers in the objective function 15
Biggest number in a constraint 24
Number of bits of the biggest number in a constraint 5
Biggest sum of numbers in a constraint 30411
Number of bits of the biggest sum of numbers15
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1195.1
Number of variables10713
Total number of constraints9801
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)18
Number of constraints which are nor clauses,nor cardinality constraints9783
Minimum length of a constraint1
Maximum length of a constraint8

Trace number 10014

Launcher Data

LAUNCH ON wulflinc23 THE 2005-09-23 16:33:14 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8775 boxname=wulflinc23 idbench=571 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  8ad66f5ec9923fdfb526351beaad3554  /oldhome/oroussel/tmp/wulflinc23/normalized-mps-v2-20-10-manna81.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc23/normalized-mps-v2-20-10-manna81.opb
IDLAUNCH: 8775
/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:        917424 kB
Buffers:         14336 kB
Cached:          84332 kB
SwapCached:          0 kB
Active:          60464 kB
Inactive:        41168 kB
HighTotal:      131008 kB
HighFree:        42364 kB
LowTotal:       903652 kB
LowFree:        875060 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:            10040 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 16:35:13 (client local time) WITH STATUS 1 IN 117.237 SECONDS
stats: 8775 7 117.237 1

Solver Data

c This solver internally uses Chaff 2004.11.15 Simplified
c running zchaff...
c got solution with objective value: 23258
c big objective detected
c trying from 0 to 511

	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/8402/stat): 8402 (pb2sat) R 8401 8402 4060 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 21653716 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/8402/statm): 373 2 364 364 0 9 0
[pid=8402] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc23/normalized-mps-v2-20-10-manna81.opb

[startup+10.0015 s]
Raw data (loadavg): 1.00 0.95 0.94 1/55 8402
Raw data (/proc/8402/stat): 8402 (pb2sat) T 8401 8402 4060 0 -1 0 10421 0 0 0 779 85 0 0 17 0 1 0 21653716 32182272 6252 4294967295 134512640 135987407 3221224560 3221223388 135541329 0 0 5 16384 3222434794 0 0 17 0 0 0
Raw data (/proc/8402/statm): 7857 6252 364 364 0 7493 0
[pid=8402] vsize: 31428
Current children cumulated CPU time (s) 8.64
Current children cumulated vsize (Kb) 31428

[startup+20.0022 s]
Raw data (loadavg): 1.00 0.95 0.94 2/55 8402
Raw data (/proc/8402/stat): 8402 (pb2sat) R 8401 8402 4060 0 -1 0 44746 0 0 0 1696 163 0 0 25 0 1 0 21653716 137347072 28460 4294967295 134512640 135987407 3221224560 3218530512 134640119 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8402/statm): 33532 28460 364 364 0 33168 0
[pid=8402] vsize: 134128
Current children cumulated CPU time (s) 18.59
Current children cumulated vsize (Kb) 134128

[startup+30.0028 s]
Raw data (loadavg): 1.00 0.95 0.94 2/55 8402
Raw data (/proc/8402/stat): 8402 (pb2sat) R 8401 8402 4060 0 -1 0 69943 0 0 0 2636 221 0 0 25 0 1 0 21653716 205647872 47291 4294967295 134512640 135987407 3221224560 3218334832 134865874 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8402/statm): 50207 47291 364 364 0 49843 0
[pid=8402] vsize: 200828
Current children cumulated CPU time (s) 28.57
Current children cumulated vsize (Kb) 200828

[startup+40.0034 s]
Raw data (loadavg): 1.00 0.95 0.94 2/55 8402
Raw data (/proc/8402/stat): 8402 (pb2sat) R 8401 8402 4060 0 -1 0 110926 0 0 0 3549 304 0 0 25 0 1 0 21653716 367833088 66098 4294967295 134512640 135987407 3221224560 3221199328 135477274 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8402/statm): 89803 66098 364 364 0 89439 0
[pid=8402] vsize: 359212
Current children cumulated CPU time (s) 38.53
Current children cumulated vsize (Kb) 359212

[startup+50.0041 s]
Raw data (loadavg): 1.00 0.95 0.94 2/55 8402
Raw data (/proc/8402/stat): 8402 (pb2sat) R 8401 8402 4060 0 -1 0 130016 0 0 0 4505 346 0 0 25 0 1 0 21653716 392433664 84959 4294967295 134512640 135987407 3221224560 3220920476 134637002 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8402/statm): 95809 84959 364 364 0 95445 0
[pid=8402] vsize: 383236
Current children cumulated CPU time (s) 48.51
Current children cumulated vsize (Kb) 383236

[startup+60.0037 s]
Raw data (loadavg): 1.00 0.95 0.94 2/55 8402
Raw data (/proc/8402/stat): 8402 (pb2sat) R 8401 8402 4060 0 -1 0 174112 0 0 0 5409 438 0 0 25 0 1 0 21653716 534433792 109448 4294967295 134512640 135987407 3221224560 3219861296 134856382 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8402/statm): 130477 109448 364 364 0 130113 0
[pid=8402] vsize: 521908
Current children cumulated CPU time (s) 58.47
Current children cumulated vsize (Kb) 521908

[startup+70.0043 s]
Raw data (loadavg): 1.00 0.96 0.94 2/55 8402
Raw data (/proc/8402/stat): 8402 (pb2sat) R 8401 8402 4060 0 -1 0 212466 0 0 0 6318 527 0 0 25 0 1 0 21653716 686493696 123060 4294967295 134512640 135987407 3221224560 3220035296 134877726 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8402/statm): 167601 123060 364 364 0 167237 0
[pid=8402] vsize: 670404
Current children cumulated CPU time (s) 68.45
Current children cumulated vsize (Kb) 670404

[startup+80.005 s]
Raw data (loadavg): 1.00 0.96 0.94 2/55 8402
Raw data (/proc/8402/stat): 8402 (pb2sat) R 8401 8402 4060 0 -1 0 230605 0 0 0 7275 568 0 0 25 0 1 0 21653716 709877760 140981 4294967295 134512640 135987407 3221224560 3219741660 135480440 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8402/statm): 173310 140981 364 364 0 172946 0
[pid=8402] vsize: 693240
Current children cumulated CPU time (s) 78.43
Current children cumulated vsize (Kb) 693240

[startup+90.0056 s]
Raw data (loadavg): 1.00 0.96 0.94 2/55 8402
Raw data (/proc/8402/stat): 8402 (pb2sat) R 8401 8402 4060 0 -1 0 248942 0 0 0 8235 606 0 0 25 0 1 0 21653716 733667328 159097 4294967295 134512640 135987407 3221224560 3218291436 135486803 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8402/statm): 179118 159097 364 364 0 178754 0
[pid=8402] vsize: 716472
Current children cumulated CPU time (s) 88.41
Current children cumulated vsize (Kb) 716472

[startup+100.006 s]
Raw data (loadavg): 1.00 0.96 0.94 2/55 8402
Raw data (/proc/8402/stat): 8402 (pb2sat) R 8401 8402 4060 0 -1 0 263549 0 0 0 9202 638 0 0 25 0 1 0 21653716 802922496 173528 4294967295 134512640 135987407 3221224560 3218205576 135480532 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8402/statm): 196026 173528 364 364 0 195662 0
[pid=8402] vsize: 784104
Current children cumulated CPU time (s) 98.4
Current children cumulated vsize (Kb) 784104

[startup+110.007 s]
Raw data (loadavg): 1.00 0.96 0.94 2/55 8402
Raw data (/proc/8402/stat): 8402 (pb2sat) R 8401 8402 4060 0 -1 0 282569 0 0 0 10158 679 0 0 25 0 1 0 21653716 829145088 192329 4294967295 134512640 135987407 3221224560 3220758352 134854956 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8402/statm): 202428 192329 364 364 0 202064 0
[pid=8402] vsize: 809712
Current children cumulated CPU time (s) 108.37
Current children cumulated vsize (Kb) 809712
One traced child (pid=8402) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 118.867
CPU time (s): 117.237
CPU user time (s): 110.035
CPU system time (s): 7.2019
CPU usage (%): 98.6286
Max. virtual memory (cumulated for all children) (Kb): 809712

Verifier Data

ERROR: no interpretation found !