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-maros.opb
MD5SUMe0398e644ed8244eeb84fb20e0ca944b
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 10110
Biggest coefficient in the objective function 330175610880000000
Number of bits for the biggest coefficient in the objective function 59
Sum of the numbers in the objective function -3512679628005298690
Number of bits of the sum of numbers in the objective function 64
Biggest number in a constraint 330175610880000000
Number of bits of the biggest number in a constraint 59
Biggest sum of numbers in a constraint -3512679628005298690
Number of bits of the biggest sum of numbers64
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Number of variables42240
Total number of constraints844
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 constraints844
Minimum length of a constraint30
Maximum length of a constraint4740

Trace number 9891

Launcher Data

LAUNCH ON wulflinc11 THE 2005-09-23 16:07:13 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8646 boxname=wulflinc11 idbench=442 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  e0398e644ed8244eeb84fb20e0ca944b  /oldhome/oroussel/tmp/wulflinc11/normalized-mps-v2-20-10-maros.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc11/normalized-mps-v2-20-10-maros.opb
IDLAUNCH: 8646
/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:        903912 kB
Buffers:          8748 kB
Cached:          96380 kB
SwapCached:          0 kB
Active:          62824 kB
Inactive:        51856 kB
HighTotal:      131008 kB
HighFree:        32284 kB
LowTotal:       903652 kB
LowFree:        871628 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:            10212 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 16:08:47 (client local time) WITH STATUS 1 IN 93.8827 SECONDS
stats: 8646 7 93.8827 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/9043/stat): 9043 (pb2sat) R 9042 9043 4060 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 21502411 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/9043/statm): 373 2 364 364 0 9 0
[pid=9043] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc11/normalized-mps-v2-20-10-maros.opb

[startup+10.0023 s]
Raw data (loadavg): 0.93 0.96 0.91 2/55 9043
Raw data (/proc/9043/stat): 9043 (pb2sat) R 9042 9043 4060 0 -1 0 26837 0 0 0 936 61 0 0 25 0 1 0 21502411 85368832 15686 4294967295 134512640 135987407 3221224560 3220968720 134558636 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9043/statm): 20842 15686 364 364 0 20478 0
[pid=9043] vsize: 83368
Current children cumulated CPU time (s) 9.97
Current children cumulated vsize (Kb) 83368

[startup+20.0031 s]
Raw data (loadavg): 0.94 0.96 0.91 2/55 9043
Raw data (/proc/9043/stat): 9043 (pb2sat) R 9042 9043 4060 0 -1 0 55179 0 0 0 1873 123 0 0 25 0 1 0 21502411 162811904 32780 4294967295 134512640 135987407 3221224560 3221082800 134556946 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9043/statm): 39749 32780 364 364 0 39385 0
[pid=9043] vsize: 158996
Current children cumulated CPU time (s) 19.96
Current children cumulated vsize (Kb) 158996

[startup+30.0038 s]
Raw data (loadavg): 0.95 0.96 0.91 2/55 9043
Raw data (/proc/9043/stat): 9043 (pb2sat) R 9042 9043 4060 0 -1 0 95318 0 0 0 2787 207 0 0 25 0 1 0 21502411 313372672 50701 4294967295 134512640 135987407 3221224560 3221137180 135480510 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9043/statm): 76507 50701 364 364 0 76143 0
[pid=9043] vsize: 306028
Current children cumulated CPU time (s) 29.94
Current children cumulated vsize (Kb) 306028

[startup+40.0046 s]
Raw data (loadavg): 0.96 0.96 0.91 2/55 9043
Raw data (/proc/9043/stat): 9043 (pb2sat) R 9042 9043 4060 0 -1 0 112571 0 0 0 3744 248 0 0 25 0 1 0 21502411 319193088 67671 4294967295 134512640 135987407 3221224560 3221184968 134930936 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9043/statm): 77928 67671 364 364 0 77564 0
[pid=9043] vsize: 311712
Current children cumulated CPU time (s) 39.92
Current children cumulated vsize (Kb) 311712

[startup+50.0064 s]
Raw data (loadavg): 0.96 0.96 0.91 2/55 9043
Raw data (/proc/9043/stat): 9043 (pb2sat) R 9042 9043 4060 0 -1 0 172039 0 0 0 4619 370 0 0 25 0 1 0 21502411 649142272 107521 4294967295 134512640 135987407 3221224560 3221191504 134887487 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9043/statm): 158482 107521 364 364 0 158118 0
[pid=9043] vsize: 633928
Current children cumulated CPU time (s) 49.89
Current children cumulated vsize (Kb) 633928

[startup+60.0072 s]
Raw data (loadavg): 0.97 0.96 0.91 2/55 9043
Raw data (/proc/9043/stat): 9043 (pb2sat) R 9042 9043 4060 0 -1 0 192823 0 0 0 5564 424 0 0 25 0 1 0 21502411 586625024 103488 4294967295 134512640 135987407 3221224560 3221190908 135499901 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9043/statm): 143219 103488 364 364 0 142855 0
[pid=9043] vsize: 572876
Current children cumulated CPU time (s) 59.88
Current children cumulated vsize (Kb) 572876

[startup+70.007 s]
Raw data (loadavg): 0.97 0.96 0.91 2/55 9043
Raw data (/proc/9043/stat): 9043 (pb2sat) R 9042 9043 4060 0 -1 0 212794 0 0 0 6517 468 0 0 25 0 1 0 21502411 607846400 123195 4294967295 134512640 135987407 3221224560 3221002336 134887877 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9043/statm): 148400 123195 364 364 0 148036 0
[pid=9043] vsize: 593600
Current children cumulated CPU time (s) 69.85
Current children cumulated vsize (Kb) 593600

[startup+80.0078 s]
Raw data (loadavg): 0.98 0.96 0.91 2/55 9043
Raw data (/proc/9043/stat): 9043 (pb2sat) R 9042 9043 4060 0 -1 0 233646 0 0 0 7467 516 0 0 25 0 1 0 21502411 685346816 143795 4294967295 134512640 135987407 3221224560 3221048800 134877628 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9043/statm): 167321 143795 364 364 0 166957 0
[pid=9043] vsize: 669284
Current children cumulated CPU time (s) 79.83
Current children cumulated vsize (Kb) 669284

[startup+90.0086 s]
Raw data (loadavg): 0.98 0.96 0.91 2/55 9043
Raw data (/proc/9043/stat): 9043 (pb2sat) R 9042 9043 4060 0 -1 0 250653 0 0 0 8429 552 0 0 25 0 1 0 21502411 707514368 160597 4294967295 134512640 135987407 3221224560 3221101072 134537477 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9043/statm): 172733 160597 364 364 0 172369 0
[pid=9043] vsize: 690932
Current children cumulated CPU time (s) 89.81
Current children cumulated vsize (Kb) 690932
One traced child (pid=9043) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 94.0751
CPU time (s): 93.8827
CPU user time (s): 87.9846
CPU system time (s): 5.8981
CPU usage (%): 99.7955
Max. virtual memory (cumulated for all children) (Kb): 690932

Verifier Data

ERROR: no interpretation found !