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-grow15.opb
MD5SUM18d2e7037e36eb0868942f66e3c0ecc5
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 0
Optimality of the best value was proved NO
Number of terms in the objective function 1335
Biggest coefficient in the objective function 3758096384
Number of bits for the biggest coefficient in the objective function 32
Sum of the numbers in the objective function 154618822482
Number of bits of the sum of numbers in the objective function 38
Biggest number in a constraint 878188741787648
Number of bits of the biggest number in a constraint 50
Biggest sum of numbers in a constraint 4550739094651140
Number of bits of the biggest sum of numbers53
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1236.3
Number of variables17130
Total number of constraints900
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 constraints900
Minimum length of a constraint22
Maximum length of a constraint491

Trace number 9944

Launcher Data

LAUNCH ON wulflinc4 THE 2005-09-23 16:14:48 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8694 boxname=wulflinc4 idbench=490 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  18d2e7037e36eb0868942f66e3c0ecc5  /oldhome/oroussel/tmp/wulflinc4/normalized-mps-v2-20-10-grow15.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc4/normalized-mps-v2-20-10-grow15.opb
IDLAUNCH: 8694
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.191
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	: 2
cpu MHz		: 451.191
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:        932180 kB
Buffers:         12184 kB
Cached:          72816 kB
SwapCached:          0 kB
Active:          46440 kB
Inactive:        41500 kB
HighTotal:      131008 kB
HighFree:        53816 kB
LowTotal:       903652 kB
LowFree:        878364 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:             8932 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 16:16:43 (client local time) WITH STATUS 1 IN 114.581 SECONDS
stats: 8694 7 114.581 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/8850/stat): 8850 (pb2sat) R 8849 8850 4060 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 21564360 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/8850/statm): 373 2 364 364 0 9 0
[pid=8850] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc4/normalized-mps-v2-20-10-grow15.opb

[startup+10.0021 s]
Raw data (loadavg): 0.94 0.98 0.98 2/55 8850
Raw data (/proc/8850/stat): 8850 (pb2sat) R 8849 8850 4060 0 -1 0 29738 0 0 0 930 65 0 0 25 0 1 0 21564360 97026048 18601 4294967295 134512640 135987407 3221224560 3221147708 134637002 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8850/statm): 23688 18601 364 364 0 23324 0
[pid=8850] vsize: 94752
Current children cumulated CPU time (s) 9.95
Current children cumulated vsize (Kb) 94752

[startup+20.003 s]
Raw data (loadavg): 0.95 0.98 0.98 2/55 8850
Raw data (/proc/8850/stat): 8850 (pb2sat) R 8849 8850 4060 0 -1 0 59903 0 0 0 1869 124 0 0 25 0 1 0 21564360 193097728 37557 4294967295 134512640 135987407 3221224560 3221151068 134637002 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8850/statm): 47143 37557 364 364 0 46779 0
[pid=8850] vsize: 188572
Current children cumulated CPU time (s) 19.93
Current children cumulated vsize (Kb) 188572

[startup+30.0029 s]
Raw data (loadavg): 0.95 0.98 0.98 2/55 8850
Raw data (/proc/8850/stat): 8850 (pb2sat) R 8849 8850 4060 0 -1 0 96379 0 0 0 2799 190 0 0 25 0 1 0 21564360 375504896 64122 4294967295 134512640 135987407 3221224560 3221149808 134887487 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8850/statm): 91676 64122 364 364 0 91312 0
[pid=8850] vsize: 366704
Current children cumulated CPU time (s) 29.89
Current children cumulated vsize (Kb) 366704

[startup+40.0037 s]
Raw data (loadavg): 0.96 0.98 0.98 2/55 8850
Raw data (/proc/8850/stat): 8850 (pb2sat) R 8849 8850 4060 0 -1 0 118882 0 0 0 3749 237 0 0 25 0 1 0 21564360 382861312 74136 4294967295 134512640 135987407 3221224560 3221151960 134856604 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8850/statm): 93472 74136 364 364 0 93108 0
[pid=8850] vsize: 373888
Current children cumulated CPU time (s) 39.86
Current children cumulated vsize (Kb) 373888

[startup+50.0046 s]
Raw data (loadavg): 0.97 0.98 0.98 2/55 8850
Raw data (/proc/8850/stat): 8850 (pb2sat) R 8849 8850 4060 0 -1 0 137371 0 0 0 4714 270 0 0 25 0 1 0 21564360 409645056 92403 4294967295 134512640 135987407 3221224560 3221151428 134537546 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8850/statm): 100011 92403 364 364 0 99647 0
[pid=8850] vsize: 400044
Current children cumulated CPU time (s) 49.84
Current children cumulated vsize (Kb) 400044

[startup+60.0054 s]
Raw data (loadavg): 0.97 0.98 0.98 2/55 8850
Raw data (/proc/8850/stat): 8850 (pb2sat) R 8849 8850 4060 0 -1 0 182111 0 0 0 5628 353 0 0 25 0 1 0 21564360 748634112 117548 4294967295 134512640 135987407 3221224560 3221154176 134887487 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8850/statm): 182772 117548 364 364 0 182408 0
[pid=8850] vsize: 731088
Current children cumulated CPU time (s) 59.81
Current children cumulated vsize (Kb) 731088

[startup+70.0063 s]
Raw data (loadavg): 0.97 0.98 0.98 2/55 8850
Raw data (/proc/8850/stat): 8850 (pb2sat) R 8849 8850 4060 0 -1 0 218227 0 0 0 6548 431 0 0 25 0 1 0 21564360 700813312 128909 4294967295 134512640 135987407 3221224560 3221151248 134877628 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8850/statm): 171097 128909 364 364 0 170733 0
[pid=8850] vsize: 684388
Current children cumulated CPU time (s) 69.79
Current children cumulated vsize (Kb) 684388

[startup+80.0071 s]
Raw data (loadavg): 0.98 0.98 0.98 2/55 8850
Raw data (/proc/8850/stat): 8850 (pb2sat) R 8849 8850 4060 0 -1 0 234569 0 0 0 7515 462 0 0 25 0 1 0 21564360 725827584 145059 4294967295 134512640 135987407 3221224560 3221153360 134878675 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8850/statm): 177204 145059 364 364 0 176840 0
[pid=8850] vsize: 708816
Current children cumulated CPU time (s) 79.77
Current children cumulated vsize (Kb) 708816

[startup+90.008 s]
Raw data (loadavg): 0.98 0.98 0.98 2/55 8850
Raw data (/proc/8850/stat): 8850 (pb2sat) R 8849 8850 4060 0 -1 0 252546 0 0 0 8481 495 0 0 25 0 1 0 21564360 752381952 162822 4294967295 134512640 135987407 3221224560 3221152128 134636939 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8850/statm): 183687 162822 364 364 0 183323 0
[pid=8850] vsize: 734748
Current children cumulated CPU time (s) 89.76
Current children cumulated vsize (Kb) 734748

[startup+100.008 s]
Raw data (loadavg): 0.98 0.98 0.98 2/55 8850
Raw data (/proc/8850/stat): 8850 (pb2sat) R 8849 8850 4060 0 -1 0 270083 0 0 0 9448 526 0 0 25 0 1 0 21564360 777453568 180145 4294967295 134512640 135987407 3221224560 3221151740 134641848 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8850/statm): 189808 180145 364 364 0 189444 0
[pid=8850] vsize: 759232
Current children cumulated CPU time (s) 99.74
Current children cumulated vsize (Kb) 759232

[startup+110.009 s]
Raw data (loadavg): 0.99 0.98 0.98 2/55 8850
Raw data (/proc/8850/stat): 8850 (pb2sat) R 8849 8850 4060 0 -1 0 278721 0 0 0 10432 541 0 0 25 0 1 0 21564360 840822784 188678 4294967295 134512640 135987407 3221224560 3221223392 135288093 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8850/statm): 205279 188678 364 364 0 204915 0
[pid=8850] vsize: 821116
Current children cumulated CPU time (s) 109.73
Current children cumulated vsize (Kb) 821116
One traced child (pid=8850) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 114.856
CPU time (s): 114.581
CPU user time (s): 108.778
CPU system time (s): 5.80212
CPU usage (%): 99.7601
Max. virtual memory (cumulated for all children) (Kb): 821116

Verifier Data

ERROR: no interpretation found !