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-v2-13-7/ftp.netlib.org/lp/data/normalized-mps-v2-13-7-scfxm2.opb
MD5SUM3611fc20088602fa99726273d52175c6
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableNO
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of terms in the objective function 920
Biggest coefficient in the objective function 5242880
Number of bits for the biggest coefficient in the objective function 23
Sum of the numbers in the objective function 274726650
Number of bits of the sum of numbers in the objective function 29
Biggest number in a constraint 52428800000
Number of bits of the biggest number in a constraint 36
Biggest sum of numbers in a constraint 319170501375
Number of bits of the biggest sum of numbers39
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.48577
Number of variables18280
Total number of constraints660
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 constraints660
Minimum length of a constraint20
Maximum length of a constraint1140

Trace number 10299

Launcher Data

LAUNCH ON wulflinc24 THE 2005-09-23 17:47:53 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=9047 boxname=wulflinc24 idbench=843 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  3611fc20088602fa99726273d52175c6  /oldhome/oroussel/tmp/wulflinc24/normalized-mps-v2-13-7-scfxm2.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc24/normalized-mps-v2-13-7-scfxm2.opb
IDLAUNCH: 9047
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.047
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		: 451.047
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:        892424 kB
Buffers:         15736 kB
Cached:         107208 kB
SwapCached:          0 kB
Active:          68100 kB
Inactive:        57736 kB
HighTotal:      131008 kB
HighFree:        21924 kB
LowTotal:       903652 kB
LowFree:        870500 kB
SwapTotal:     2097892 kB
SwapFree:      2097892 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:            10840 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-23 17:49:49 (client local time) WITH STATUS 1 IN 115.324 SECONDS
stats: 9047 7 115.324 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/9695/stat): 9695 (pb2sat) R 9694 9695 4059 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 22101651 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/9695/statm): 373 2 364 364 0 9 0
[pid=9695] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc24/normalized-mps-v2-13-7-scfxm2.opb

[startup+10.0017 s]
Raw data (loadavg): 0.92 0.94 0.94 2/55 9695
Raw data (/proc/9695/stat): 9695 (pb2sat) R 9694 9695 4059 0 -1 0 30550 0 0 0 931 65 0 0 25 0 1 0 22101651 97251328 19415 4294967295 134512640 135987407 3221224560 3221130316 134560265 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9695/statm): 23743 19415 364 364 0 23379 0
[pid=9695] vsize: 94972
Current children cumulated CPU time (s) 9.96
Current children cumulated vsize (Kb) 94972

[startup+20.0024 s]
Raw data (loadavg): 0.93 0.94 0.94 2/55 9695
Raw data (/proc/9695/stat): 9695 (pb2sat) R 9694 9695 4059 0 -1 0 60395 0 0 0 1865 128 0 0 25 0 1 0 22101651 191995904 38058 4294967295 134512640 135987407 3221224560 3221126876 134637002 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9695/statm): 46874 38058 364 364 0 46510 0
[pid=9695] vsize: 187496
Current children cumulated CPU time (s) 19.93
Current children cumulated vsize (Kb) 187496

[startup+30.0031 s]
Raw data (loadavg): 0.94 0.95 0.94 2/55 9695
Raw data (/proc/9695/stat): 9695 (pb2sat) R 9694 9695 4059 0 -1 0 102026 0 0 0 2777 213 0 0 25 0 1 0 22101651 322809856 57506 4294967295 134512640 135987407 3221224560 3221131856 134862243 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9695/statm): 78811 57506 364 364 0 78447 0
[pid=9695] vsize: 315244
Current children cumulated CPU time (s) 29.9
Current children cumulated vsize (Kb) 315244

[startup+40.0028 s]
Raw data (loadavg): 0.95 0.95 0.94 2/55 9695
Raw data (/proc/9695/stat): 9695 (pb2sat) R 9694 9695 4059 0 -1 0 119462 0 0 0 3740 248 0 0 25 0 1 0 22101651 380702720 74734 4294967295 134512640 135987407 3221224560 3221131616 134537562 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9695/statm): 92945 74734 364 364 0 92581 0
[pid=9695] vsize: 371780
Current children cumulated CPU time (s) 39.88
Current children cumulated vsize (Kb) 371780

[startup+50.0035 s]
Raw data (loadavg): 0.96 0.95 0.94 2/55 9695
Raw data (/proc/9695/stat): 9695 (pb2sat) R 9694 9695 4059 0 -1 0 137528 0 0 0 4703 283 0 0 25 0 1 0 22101651 404627456 92582 4294967295 134512640 135987407 3221224560 3221131616 134537562 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9695/statm): 98786 92582 364 364 0 98422 0
[pid=9695] vsize: 395144
Current children cumulated CPU time (s) 49.86
Current children cumulated vsize (Kb) 395144

[startup+60.0032 s]
Raw data (loadavg): 0.96 0.95 0.94 2/55 9695
Raw data (/proc/9695/stat): 9695 (pb2sat) R 9694 9695 4059 0 -1 0 202166 0 0 0 5568 413 0 0 25 0 1 0 22101651 641241088 113080 4294967295 134512640 135987407 3221224560 3221133296 134537357 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9695/statm): 156553 113080 364 364 0 156189 0
[pid=9695] vsize: 626212
Current children cumulated CPU time (s) 59.81
Current children cumulated vsize (Kb) 626212

[startup+70.0039 s]
Raw data (loadavg): 0.97 0.95 0.94 2/55 9695
Raw data (/proc/9695/stat): 9695 (pb2sat) R 9694 9695 4059 0 -1 0 217565 0 0 0 6536 443 0 0 25 0 1 0 22101651 695611392 128294 4294967295 134512640 135987407 3221224560 3221140988 134637002 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9695/statm): 169827 128294 364 364 0 169463 0
[pid=9695] vsize: 679308
Current children cumulated CPU time (s) 69.79
Current children cumulated vsize (Kb) 679308

[startup+80.0046 s]
Raw data (loadavg): 0.97 0.95 0.94 2/55 9695
Raw data (/proc/9695/stat): 9695 (pb2sat) R 9694 9695 4059 0 -1 0 235342 0 0 0 7498 480 0 0 25 0 1 0 22101651 719265792 145857 4294967295 134512640 135987407 3221224560 3221138492 134892722 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9695/statm): 175602 145857 364 364 0 175238 0
[pid=9695] vsize: 702408
Current children cumulated CPU time (s) 79.78
Current children cumulated vsize (Kb) 702408

[startup+90.0042 s]
Raw data (loadavg): 0.98 0.95 0.94 2/55 9695
Raw data (/proc/9695/stat): 9695 (pb2sat) R 9694 9695 4059 0 -1 0 253162 0 0 0 8457 519 0 0 25 0 1 0 22101651 742940672 163461 4294967295 134512640 135987407 3221224560 3221140688 134537474 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9695/statm): 181382 163461 364 364 0 181018 0
[pid=9695] vsize: 725528
Current children cumulated CPU time (s) 89.76
Current children cumulated vsize (Kb) 725528

[startup+100.005 s]
Raw data (loadavg): 0.98 0.95 0.94 2/55 9695
Raw data (/proc/9695/stat): 9695 (pb2sat) R 9694 9695 4059 0 -1 0 267084 0 0 0 9428 547 0 0 25 0 1 0 22101651 811520000 177214 4294967295 134512640 135987407 3221224560 3221144848 134854981 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9695/statm): 198125 177214 364 364 0 197761 0
[pid=9695] vsize: 792500
Current children cumulated CPU time (s) 99.75
Current children cumulated vsize (Kb) 792500

[startup+110.006 s]
Raw data (loadavg): 0.98 0.95 0.94 2/55 9695
Raw data (/proc/9695/stat): 9695 (pb2sat) R 9694 9695 4059 0 -1 0 281377 0 0 0 10399 574 0 0 25 0 1 0 22101651 831238144 191334 4294967295 134512640 135987407 3221224560 3221223120 134563054 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9695/statm): 202939 191334 364 364 0 202575 0
[pid=9695] vsize: 811756
Current children cumulated CPU time (s) 109.73
Current children cumulated vsize (Kb) 811756
One traced child (pid=9695) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 115.601
CPU time (s): 115.324
CPU user time (s): 109.182
CPU system time (s): 6.14207
CPU usage (%): 99.7604
Max. virtual memory (cumulated for all children) (Kb): 811756

Verifier Data

ERROR: no interpretation found !