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-afiro.opb
MD5SUMb9a386a980af3ebe560fd16ca36e17ae
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function -1486831
Optimality of the best value was proved YES
Number of terms in the objective function 100
Biggest coefficient in the objective function 131072000
Number of bits for the biggest coefficient in the objective function 27
Sum of the numbers in the objective function 309329625
Number of bits of the sum of numbers in the objective function 29
Biggest number in a constraint 1273495552
Number of bits of the biggest number in a constraint 31
Biggest sum of numbers in a constraint 20473426875
Number of bits of the biggest sum of numbers35
Best result obtained on this benchmarkOPTIMUM FOUND
Best CPU time to get the best result obtained on this benchmark497.98
Number of variables640
Total number of constraints27
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 constraints27
Minimum length of a constraint20
Maximum length of a constraint180

Trace number 10247

Launcher Data

LAUNCH ON wulflinc15 THE 2005-09-23 17:42:29 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8993 boxname=wulflinc15 idbench=789 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  b9a386a980af3ebe560fd16ca36e17ae  /oldhome/oroussel/tmp/wulflinc15/normalized-mps-v2-13-7-afiro.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc15/normalized-mps-v2-13-7-afiro.opb
IDLAUNCH: 8993
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.045
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		: 451.045
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:        897000 kB
Buffers:          4372 kB
Cached:         113200 kB
SwapCached:          0 kB
Active:          18072 kB
Inactive:       102416 kB
HighTotal:      131008 kB
HighFree:        81788 kB
LowTotal:       903652 kB
LowFree:        815212 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6984 kB
Slab:            11448 kB
Committed_AS:    63624 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 17:44:19 (client local time) WITH STATUS 1 IN 109.485 SECONDS
stats: 8993 7 109.485 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/8337/stat): 8337 (pb2sat) R 8336 8337 4057 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 22071007 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/8337/statm): 373 2 364 364 0 9 0
[pid=8337] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc15/normalized-mps-v2-13-7-afiro.opb

[startup+10.0019 s]
Raw data (loadavg): 0.85 0.93 0.97 2/55 8337
Raw data (/proc/8337/stat): 8337 (pb2sat) R 8336 8337 4057 0 -1 0 29851 0 0 0 928 68 0 0 25 0 1 0 22071007 90042368 18695 4294967295 134512640 135987407 3221224560 3221164880 134640422 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8337/statm): 21983 18695 364 364 0 21619 0
[pid=8337] vsize: 87932
Current children cumulated CPU time (s) 9.96
Current children cumulated vsize (Kb) 87932

[startup+20.0027 s]
Raw data (loadavg): 0.88 0.93 0.97 2/55 8337
Raw data (/proc/8337/stat): 8337 (pb2sat) R 8336 8337 4057 0 -1 0 60465 0 0 0 1859 134 0 0 25 0 1 0 22071007 186556416 38100 4294967295 134512640 135987407 3221224560 3221166928 134637848 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8337/statm): 45546 38100 364 364 0 45182 0
[pid=8337] vsize: 182184
Current children cumulated CPU time (s) 19.93
Current children cumulated vsize (Kb) 182184

[startup+30.0036 s]
Raw data (loadavg): 0.89 0.94 0.97 2/55 8337
Raw data (/proc/8337/stat): 8337 (pb2sat) R 8336 8337 4057 0 -1 0 102682 0 0 0 2771 219 0 0 25 0 1 0 22071007 317767680 58124 4294967295 134512640 135987407 3221224560 3221169604 134537546 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8337/statm): 77580 58124 364 364 0 77216 0
[pid=8337] vsize: 310320
Current children cumulated CPU time (s) 29.9
Current children cumulated vsize (Kb) 310320

[startup+40.0034 s]
Raw data (loadavg): 0.91 0.94 0.97 2/55 8337
Raw data (/proc/8337/stat): 8337 (pb2sat) R 8336 8337 4057 0 -1 0 120551 0 0 0 3733 256 0 0 25 0 1 0 22071007 375668736 75777 4294967295 134512640 135987407 3221224560 3221171892 134558365 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8337/statm): 91716 75777 364 364 0 91352 0
[pid=8337] vsize: 366864
Current children cumulated CPU time (s) 39.89
Current children cumulated vsize (Kb) 366864

[startup+50.0042 s]
Raw data (loadavg): 0.92 0.94 0.97 2/55 8337
Raw data (/proc/8337/stat): 8337 (pb2sat) R 8336 8337 4057 0 -1 0 149043 0 0 0 4673 312 0 0 25 0 1 0 22071007 559927296 103685 4294967295 134512640 135987407 3221224560 3221173792 134854943 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8337/statm): 136701 103685 364 364 0 136337 0
[pid=8337] vsize: 546804
Current children cumulated CPU time (s) 49.85
Current children cumulated vsize (Kb) 546804

[startup+60.005 s]
Raw data (loadavg): 0.93 0.94 0.97 2/55 8337
Raw data (/proc/8337/stat): 8337 (pb2sat) R 8336 8337 4057 0 -1 0 205054 0 0 0 5554 427 0 0 25 0 1 0 22071007 639033344 115899 4294967295 134512640 135987407 3221224560 3221182944 134556853 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8337/statm): 156014 115899 364 364 0 155650 0
[pid=8337] vsize: 624056
Current children cumulated CPU time (s) 59.81
Current children cumulated vsize (Kb) 624056

[startup+70.0058 s]
Raw data (loadavg): 0.94 0.94 0.97 2/55 8337
Raw data (/proc/8337/stat): 8337 (pb2sat) R 8336 8337 4057 0 -1 0 221091 0 0 0 6520 459 0 0 25 0 1 0 22071007 694214656 131743 4294967295 134512640 135987407 3221224560 3221181036 135482121 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8337/statm): 169486 131743 364 364 0 169122 0
[pid=8337] vsize: 677944
Current children cumulated CPU time (s) 69.79
Current children cumulated vsize (Kb) 677944

[startup+80.0066 s]
Raw data (loadavg): 0.95 0.94 0.97 2/55 8337
Raw data (/proc/8337/stat): 8337 (pb2sat) R 8336 8337 4057 0 -1 0 239555 0 0 0 7484 494 0 0 25 0 1 0 22071007 718696448 149982 4294967295 134512640 135987407 3221224560 3221180508 135499874 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8337/statm): 175463 149982 364 364 0 175099 0
[pid=8337] vsize: 701852
Current children cumulated CPU time (s) 79.78
Current children cumulated vsize (Kb) 701852

[startup+90.0065 s]
Raw data (loadavg): 0.96 0.95 0.97 2/55 8337
Raw data (/proc/8337/stat): 8337 (pb2sat) R 8336 8337 4057 0 -1 0 258088 0 0 0 8446 529 0 0 25 0 1 0 22071007 743313408 168288 4294967295 134512640 135987407 3221224560 3221182768 134887887 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8337/statm): 181473 168289 364 364 0 181109 0
[pid=8337] vsize: 725892
Current children cumulated CPU time (s) 89.75
Current children cumulated vsize (Kb) 725892

[startup+100.007 s]
Raw data (loadavg): 0.96 0.95 0.97 1/55 8337
Raw data (/proc/8337/stat): 8337 (pb2sat) T 8336 8337 4057 0 -1 0 272617 0 0 0 9418 556 0 0 25 0 1 0 22071007 812838912 182640 4294967295 134512640 135987407 3221224560 3221186700 135635874 0 0 5 16384 3222434794 0 0 17 0 0 0
Raw data (/proc/8337/statm): 198447 182640 364 364 0 198083 0
[pid=8337] vsize: 793788
Current children cumulated CPU time (s) 99.74
Current children cumulated vsize (Kb) 793788
One traced child (pid=8337) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 109.746
CPU time (s): 109.485
CPU user time (s): 103.425
CPU system time (s): 6.06008
CPU usage (%): 99.7629
Max. virtual memory (cumulated for all children) (Kb): 793788

Verifier Data

ERROR: no interpretation found !