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/ftp.netlib.org/lp/data/normalized-mps-v2-20-10-adlittle.opb
MD5SUM1bb3cde4ae28db77cb8e051d278e83a5
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 2460
Biggest coefficient in the objective function 88852135936000
Number of bits for the biggest coefficient in the objective function 47
Sum of the numbers in the objective function 3689448844530141
Number of bits of the sum of numbers in the objective function 52
Biggest number in a constraint 359703511040000
Number of bits of the biggest number in a constraint 49
Biggest sum of numbers in a constraint 6054438712178314
Number of bits of the biggest sum of numbers53
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Number of variables2910
Total number of constraints56
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints56
Minimum length of a constraint30
Maximum length of a constraint810

Trace number 9854

Launcher Data

LAUNCH ON wulflinc17 THE 2005-09-23 16:00:31 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8608 boxname=wulflinc17 idbench=404 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  1bb3cde4ae28db77cb8e051d278e83a5  /oldhome/oroussel/tmp/wulflinc17/normalized-mps-v2-20-10-adlittle.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc17/normalized-mps-v2-20-10-adlittle.opb
IDLAUNCH: 8608
/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:        934304 kB
Buffers:         15604 kB
Cached:          66268 kB
SwapCached:          0 kB
Active:          44196 kB
Inactive:        40556 kB
HighTotal:      131008 kB
HighFree:        60508 kB
LowTotal:       903652 kB
LowFree:        873796 kB
SwapTotal:     2097892 kB
SwapFree:      2097892 kB
Dirty:              40 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:             9976 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-23 16:02:22 (client local time) WITH STATUS 1 IN 110.378 SECONDS
stats: 8608 7 110.378 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/7960/stat): 7960 (pb2sat) R 7959 7960 4060 0 -1 0 18 0 0 0 0 0 0 0 24 0 1 0 21463212 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/7960/statm): 373 2 364 364 0 9 0
[pid=7960] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc17/normalized-mps-v2-20-10-adlittle.opb

[startup+10.002 s]
Raw data (loadavg): 0.93 0.98 0.95 2/55 7960
Raw data (/proc/7960/stat): 7960 (pb2sat) R 7959 7960 4060 0 -1 0 30608 0 0 0 932 65 0 0 25 0 1 0 21463212 98111488 19477 4294967295 134512640 135987407 3221224560 3221128300 134557778 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7960/statm): 23953 19477 364 364 0 23589 0
[pid=7960] vsize: 95812
Current children cumulated CPU time (s) 9.97
Current children cumulated vsize (Kb) 95812

[startup+20.0026 s]
Raw data (loadavg): 0.94 0.98 0.95 2/55 7960
Raw data (/proc/7960/stat): 7960 (pb2sat) R 7959 7960 4060 0 -1 0 60921 0 0 0 1867 126 0 0 25 0 1 0 21463212 193261568 38582 4294967295 134512640 135987407 3221224560 3221130636 135479978 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7960/statm): 47183 38582 364 364 0 46819 0
[pid=7960] vsize: 188732
Current children cumulated CPU time (s) 19.93
Current children cumulated vsize (Kb) 188732

[startup+30.0032 s]
Raw data (loadavg): 0.95 0.98 0.95 2/57 7962
Raw data (/proc/7960/stat): 7960 (pb2sat) R 7959 7960 4060 0 -1 0 103319 0 0 0 2777 213 0 0 25 0 1 0 21463212 325144576 58787 4294967295 134512640 135987407 3221224560 3221133376 134887887 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7960/statm): 79381 58787 364 364 0 79017 0
[pid=7960] vsize: 317524
Current children cumulated CPU time (s) 29.9
Current children cumulated vsize (Kb) 317524

[startup+40.0028 s]
Raw data (loadavg): 1.03 1.00 0.96 2/55 7962
Raw data (/proc/7960/stat): 7960 (pb2sat) R 7959 7960 4060 0 -1 0 121349 0 0 0 3738 250 0 0 25 0 1 0 21463212 382758912 76599 4294967295 134512640 135987407 3221224560 3221136540 135480932 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7960/statm): 93447 76599 364 364 0 93083 0
[pid=7960] vsize: 373788
Current children cumulated CPU time (s) 39.88
Current children cumulated vsize (Kb) 373788

[startup+50.0034 s]
Raw data (loadavg): 1.03 1.00 0.96 2/55 7966
Raw data (/proc/7960/stat): 7960 (pb2sat) R 7959 7960 4060 0 -1 0 140400 0 0 0 4699 287 0 0 25 0 1 0 21463212 407900160 95418 4294967295 134512640 135987407 3221224560 3221141356 134637002 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7960/statm): 99585 95418 364 364 0 99221 0
[pid=7960] vsize: 398340
Current children cumulated CPU time (s) 49.86
Current children cumulated vsize (Kb) 398340

[startup+60.003 s]
Raw data (loadavg): 1.02 1.00 0.96 2/55 7966
Raw data (/proc/7960/stat): 7960 (pb2sat) R 7959 7960 4060 0 -1 0 205969 0 0 0 5560 422 0 0 25 0 1 0 21463212 646377472 116839 4294967295 134512640 135987407 3221224560 3221142412 134635478 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7960/statm): 157807 116839 364 364 0 157443 0
[pid=7960] vsize: 631228
Current children cumulated CPU time (s) 59.82
Current children cumulated vsize (Kb) 631228

[startup+70.0036 s]
Raw data (loadavg): 1.02 1.00 0.96 2/55 7966
Raw data (/proc/7960/stat): 7960 (pb2sat) R 7959 7960 4060 0 -1 0 222217 0 0 0 6525 455 0 0 25 0 1 0 21463212 701558784 132890 4294967295 134512640 135987407 3221224560 3221146784 134559726 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7960/statm): 171279 132890 364 364 0 170915 0
[pid=7960] vsize: 685116
Current children cumulated CPU time (s) 69.8
Current children cumulated vsize (Kb) 685116

[startup+80.0042 s]
Raw data (loadavg): 1.02 1.00 0.96 2/55 7966
Raw data (/proc/7960/stat): 7960 (pb2sat) R 7959 7960 4060 0 -1 0 241091 0 0 0 7487 491 0 0 25 0 1 0 21463212 726429696 151535 4294967295 134512640 135987407 3221224560 3221151596 135484967 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7960/statm): 177351 151535 364 364 0 176987 0
[pid=7960] vsize: 709404
Current children cumulated CPU time (s) 79.78
Current children cumulated vsize (Kb) 709404

[startup+90.0038 s]
Raw data (loadavg): 1.01 1.00 0.96 2/55 7966
Raw data (/proc/7960/stat): 7960 (pb2sat) R 7959 7960 4060 0 -1 0 259981 0 0 0 8448 528 0 0 25 0 1 0 21463212 751308800 170195 4294967295 134512640 135987407 3221224560 3221155132 134637029 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7960/statm): 183425 170195 364 364 0 183061 0
[pid=7960] vsize: 733700
Current children cumulated CPU time (s) 89.76
Current children cumulated vsize (Kb) 733700

[startup+100.004 s]
Raw data (loadavg): 1.01 1.00 0.96 2/55 7966
Raw data (/proc/7960/stat): 7960 (pb2sat) R 7959 7960 4060 0 -1 0 274783 0 0 0 9415 560 0 0 25 0 1 0 21463212 821108736 184817 4294967295 134512640 135987407 3221224560 3221155676 135488081 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7960/statm): 200466 184817 364 364 0 200102 0
[pid=7960] vsize: 801864
Current children cumulated CPU time (s) 99.75
Current children cumulated vsize (Kb) 801864

[startup+110.005 s]
Raw data (loadavg): 1.01 1.00 0.96 2/55 7966
Raw data (/proc/7960/stat): 7960 (pb2sat) R 7959 7960 4060 0 -1 0 281292 0 0 0 10388 587 0 0 25 0 1 0 21463212 470085632 114300 4294967295 134512640 135987407 3221224560 3221223408 134884004 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7960/statm): 114767 114300 364 364 0 114403 0
[pid=7960] vsize: 459068
Current children cumulated CPU time (s) 109.75
Current children cumulated vsize (Kb) 459068
One traced child (pid=7960) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 110.628
CPU time (s): 110.378
CPU user time (s): 104.256
CPU system time (s): 6.12207
CPU usage (%): 99.7745
Max. virtual memory (cumulated for all children) (Kb): 801864

Verifier Data

ERROR: no interpretation found !