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-brandy.opb
MD5SUM5464ba13512fadc59abc6d202ef51bdf
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 40
Biggest coefficient in the objective function 524288
Number of bits for the biggest coefficient in the objective function 20
Sum of the numbers in the objective function 2097150
Number of bits of the sum of numbers in the objective function 21
Biggest number in a constraint 10679746560
Number of bits of the biggest number in a constraint 34
Biggest sum of numbers in a constraint 134922242400
Number of bits of the biggest sum of numbers37
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.577911
Number of variables4980
Total number of constraints182
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 constraints182
Minimum length of a constraint20
Maximum length of a constraint2360

Trace number 10258

Launcher Data

LAUNCH ON wulflinc10 THE 2005-09-23 17:43:31 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=9004 boxname=wulflinc10 idbench=800 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  5464ba13512fadc59abc6d202ef51bdf  /oldhome/oroussel/tmp/wulflinc10/normalized-mps-v2-13-7-brandy.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc10/normalized-mps-v2-13-7-brandy.opb
IDLAUNCH: 9004
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.193
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		: 451.193
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:        935004 kB
Buffers:         12028 kB
Cached:          70524 kB
SwapCached:          0 kB
Active:          45428 kB
Inactive:        40036 kB
HighTotal:      131008 kB
HighFree:        56504 kB
LowTotal:       903652 kB
LowFree:        878500 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6976 kB
Slab:             8600 kB
Committed_AS:    63624 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 17:45:19 (client local time) WITH STATUS 1 IN 107.701 SECONDS
stats: 9004 7 107.701 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/8424/stat): 8424 (pb2sat) R 8423 8424 4061 0 -1 0 18 0 0 0 0 0 0 0 24 0 1 0 22082046 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/8424/statm): 373 2 364 364 0 9 0
[pid=8424] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc10/normalized-mps-v2-13-7-brandy.opb

[startup+10.0012 s]
Raw data (loadavg): 0.87 0.94 0.91 2/55 8424
Raw data (/proc/8424/stat): 8424 (pb2sat) R 8423 8424 4061 0 -1 0 30346 0 0 0 932 64 0 0 25 0 1 0 22082046 93081600 19199 4294967295 134512640 135987407 3221224560 3221122288 134887913 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8424/statm): 22725 19199 364 364 0 22361 0
[pid=8424] vsize: 90900
Current children cumulated CPU time (s) 9.96
Current children cumulated vsize (Kb) 90900

[startup+20.0017 s]
Raw data (loadavg): 0.89 0.94 0.91 2/55 8424
Raw data (/proc/8424/stat): 8424 (pb2sat) R 8423 8424 4061 0 -1 0 60900 0 0 0 1870 124 0 0 25 0 1 0 22082046 188772352 38544 4294967295 134512640 135987407 3221224560 3221124260 135479926 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8424/statm): 46087 38544 364 364 0 45723 0
[pid=8424] vsize: 184348
Current children cumulated CPU time (s) 19.94
Current children cumulated vsize (Kb) 184348

[startup+30.0023 s]
Raw data (loadavg): 0.90 0.94 0.91 2/55 8424
Raw data (/proc/8424/stat): 8424 (pb2sat) R 8423 8424 4061 0 -1 0 103119 0 0 0 2784 206 0 0 25 0 1 0 22082046 319979520 58571 4294967295 134512640 135987407 3221224560 3221127956 135479957 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8424/statm): 78120 58571 364 364 0 77756 0
[pid=8424] vsize: 312480
Current children cumulated CPU time (s) 29.9
Current children cumulated vsize (Kb) 312480

[startup+40.0028 s]
Raw data (loadavg): 0.92 0.94 0.91 2/55 8424
Raw data (/proc/8424/stat): 8424 (pb2sat) R 8423 8424 4061 0 -1 0 120979 0 0 0 3749 239 0 0 25 0 1 0 22082046 377593856 76217 4294967295 134512640 135987407 3221224560 3221132620 134637002 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8424/statm): 92186 76217 364 364 0 91822 0
[pid=8424] vsize: 368744
Current children cumulated CPU time (s) 39.88
Current children cumulated vsize (Kb) 368744

[startup+50.0034 s]
Raw data (loadavg): 0.93 0.94 0.91 2/55 8424
Raw data (/proc/8424/stat): 8424 (pb2sat) R 8423 8424 4061 0 -1 0 143715 0 0 0 4700 286 0 0 25 0 1 0 22082046 551710720 98584 4294967295 134512640 135987407 3221224560 3221144608 134856473 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8424/statm): 134695 98584 364 364 0 134331 0
[pid=8424] vsize: 538780
Current children cumulated CPU time (s) 49.86
Current children cumulated vsize (Kb) 538780

[startup+60.003 s]
Raw data (loadavg): 0.94 0.95 0.91 2/55 8424
Raw data (/proc/8424/stat): 8424 (pb2sat) R 8423 8424 4061 0 -1 0 205419 0 0 0 5573 408 0 0 25 0 1 0 22082046 640679936 116280 4294967295 134512640 135987407 3221224560 3221134592 134861875 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8424/statm): 156416 116280 364 364 0 156052 0
[pid=8424] vsize: 625664
Current children cumulated CPU time (s) 59.81
Current children cumulated vsize (Kb) 625664

[startup+70.0035 s]
Raw data (loadavg): 0.95 0.95 0.91 2/55 8424
Raw data (/proc/8424/stat): 8424 (pb2sat) R 8423 8424 4061 0 -1 0 221758 0 0 0 6535 444 0 0 25 0 1 0 22082046 696266752 132423 4294967295 134512640 135987407 3221224560 3221135584 134878760 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8424/statm): 169987 132423 364 364 0 169623 0
[pid=8424] vsize: 679948
Current children cumulated CPU time (s) 69.79
Current children cumulated vsize (Kb) 679948

[startup+80.0041 s]
Raw data (loadavg): 0.96 0.95 0.91 2/55 8424
Raw data (/proc/8424/stat): 8424 (pb2sat) R 8423 8424 4061 0 -1 0 240404 0 0 0 7496 481 0 0 25 0 1 0 22082046 720732160 150843 4294967295 134512640 135987407 3221224560 3221146624 134856565 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8424/statm): 175960 150843 364 364 0 175596 0
[pid=8424] vsize: 703840
Current children cumulated CPU time (s) 79.77
Current children cumulated vsize (Kb) 703840

[startup+90.0047 s]
Raw data (loadavg): 0.96 0.95 0.91 2/55 8424
Raw data (/proc/8424/stat): 8424 (pb2sat) R 8423 8424 4061 0 -1 0 259102 0 0 0 8458 517 0 0 25 0 1 0 22082046 745197568 169314 4294967295 134512640 135987407 3221224560 3221143648 134878660 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8424/statm): 181933 169314 364 364 0 181569 0
[pid=8424] vsize: 727732
Current children cumulated CPU time (s) 89.75
Current children cumulated vsize (Kb) 727732

[startup+100.005 s]
Raw data (loadavg): 0.97 0.95 0.91 2/55 8424
Raw data (/proc/8424/stat): 8424 (pb2sat) R 8423 8424 4061 0 -1 0 273871 0 0 0 9428 546 0 0 25 0 1 0 22082046 814862336 183904 4294967295 134512640 135987407 3221224560 3221144756 134635357 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8424/statm): 198941 183904 364 364 0 198577 0
[pid=8424] vsize: 795764
Current children cumulated CPU time (s) 99.74
Current children cumulated vsize (Kb) 795764
One traced child (pid=8424) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 107.964
CPU time (s): 107.701
CPU user time (s): 101.735
CPU system time (s): 5.96609
CPU usage (%): 99.7563
Max. virtual memory (cumulated for all children) (Kb): 795764

Verifier Data

ERROR: no interpretation found !