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/plato.asu.edu/pub/milp/normalized-mps-v2-20-10-neos2.opb
MD5SUM46211574d7cd8b850e6ed8c2f0a475a4
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 124
Biggest coefficient in the objective function 1073741824
Number of bits for the biggest coefficient in the objective function 31
Sum of the numbers in the objective function 8589934588
Number of bits of the sum of numbers in the objective function 33
Biggest number in a constraint 2454208150643933184000
Number of bits of the biggest number in a constraint 72
Biggest sum of numbers in a constraint 289272765430218954375168
Number of bits of the biggest sum of numbers78
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Number of variables32294
Total number of constraints2173
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)1053
Number of constraints which are nor clauses,nor cardinality constraints1120
Minimum length of a constraint1
Maximum length of a constraint4780

Trace number 10172

Launcher Data

LAUNCH ON wulflinc8 THE 2005-09-23 17:23:33 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8932 boxname=wulflinc8 idbench=728 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  46211574d7cd8b850e6ed8c2f0a475a4  /oldhome/oroussel/tmp/wulflinc8/normalized-mps-v2-20-10-neos2.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc8/normalized-mps-v2-20-10-neos2.opb
IDLAUNCH: 8932
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.023
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		: 451.023
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:        928240 kB
Buffers:         13304 kB
Cached:          75504 kB
SwapCached:          0 kB
Active:          47940 kB
Inactive:        43780 kB
HighTotal:      131008 kB
HighFree:        51548 kB
LowTotal:       903652 kB
LowFree:        876692 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6976 kB
Slab:             9032 kB
Committed_AS:    63644 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 17:25:13 (client local time) WITH STATUS 1 IN 99.1939 SECONDS
stats: 8932 7 99.1939 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/9597/stat): 9597 (pb2sat) R 9596 9597 4060 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 21974004 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/9597/statm): 373 2 364 364 0 9 0
[pid=9597] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc8/normalized-mps-v2-20-10-neos2.opb

[startup+10.0015 s]
Raw data (loadavg): 0.97 1.01 0.97 2/55 9597
Raw data (/proc/9597/stat): 9597 (pb2sat) R 9596 9597 4060 0 -1 0 30800 0 0 0 929 67 0 0 25 0 1 0 21974004 99594240 19606 4294967295 134512640 135987407 3221224560 3220418796 135499901 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9597/statm): 24315 19606 364 364 0 23951 0
[pid=9597] vsize: 97260
Current children cumulated CPU time (s) 9.96
Current children cumulated vsize (Kb) 97260

[startup+20.0022 s]
Raw data (loadavg): 0.98 1.01 0.97 2/55 9597
Raw data (/proc/9597/stat): 9597 (pb2sat) R 9596 9597 4060 0 -1 0 61736 0 0 0 1865 128 0 0 25 0 1 0 21974004 196706304 38975 4294967295 134512640 135987407 3221224560 3220418992 134639128 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9597/statm): 48024 38977 364 364 0 47660 0
[pid=9597] vsize: 192096
Current children cumulated CPU time (s) 19.93
Current children cumulated vsize (Kb) 192096

[startup+30.003 s]
Raw data (loadavg): 0.98 1.01 0.97 2/55 9597
Raw data (/proc/9597/stat): 9597 (pb2sat) R 9596 9597 4060 0 -1 0 93933 0 0 0 2797 192 0 0 25 0 1 0 21974004 281186304 60179 4294967295 134512640 135987407 3221224560 3220419376 134887887 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9597/statm): 68649 60180 364 364 0 68285 0
[pid=9597] vsize: 274596
Current children cumulated CPU time (s) 29.89
Current children cumulated vsize (Kb) 274596

[startup+40.0028 s]
Raw data (loadavg): 0.98 1.00 0.97 2/55 9597
Raw data (/proc/9597/stat): 9597 (pb2sat) R 9596 9597 4060 0 -1 0 122596 0 0 0 3734 253 0 0 25 0 1 0 21974004 388726784 76333 4294967295 134512640 135987407 3221224560 3220418848 134856461 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9597/statm): 94904 76333 364 364 0 94540 0
[pid=9597] vsize: 379616
Current children cumulated CPU time (s) 39.87
Current children cumulated vsize (Kb) 379616

[startup+50.0036 s]
Raw data (loadavg): 0.98 1.00 0.97 2/55 9597
Raw data (/proc/9597/stat): 9597 (pb2sat) R 9596 9597 4060 0 -1 0 167500 0 0 0 4639 342 0 0 25 0 1 0 21974004 529072128 99169 4294967295 134512640 135987407 3221224560 3220429520 135477856 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9597/statm): 129168 99172 364 364 0 128804 0
[pid=9597] vsize: 516672
Current children cumulated CPU time (s) 49.81
Current children cumulated vsize (Kb) 516672

[startup+60.0034 s]
Raw data (loadavg): 0.99 1.00 0.97 2/55 9597
Raw data (/proc/9597/stat): 9597 (pb2sat) R 9596 9597 4060 0 -1 0 186706 0 0 0 5597 382 0 0 25 0 1 0 21974004 556781568 118118 4294967295 134512640 135987407 3221224560 3220418800 134854984 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9597/statm): 135933 118118 364 364 0 135569 0
[pid=9597] vsize: 543732
Current children cumulated CPU time (s) 59.79
Current children cumulated vsize (Kb) 543732

[startup+70.0042 s]
Raw data (loadavg): 0.99 1.00 0.97 2/55 9597
Raw data (/proc/9597/stat): 9597 (pb2sat) R 9596 9597 4060 0 -1 0 227732 0 0 0 6511 467 0 0 25 0 1 0 21974004 681234432 134346 4294967295 134512640 135987407 3221224560 3220419328 134537371 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9597/statm): 166317 134346 364 364 0 165953 0
[pid=9597] vsize: 665268
Current children cumulated CPU time (s) 69.78
Current children cumulated vsize (Kb) 665268

[startup+80.0049 s]
Raw data (loadavg): 0.99 1.00 0.97 2/55 9597
Raw data (/proc/9597/stat): 9597 (pb2sat) R 9596 9597 4060 0 -1 0 243765 0 0 0 7476 500 0 0 25 0 1 0 21974004 737902592 150164 4294967295 134512640 135987407 3221224560 3220420336 134537371 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9597/statm): 180152 150164 364 364 0 179788 0
[pid=9597] vsize: 720608
Current children cumulated CPU time (s) 79.76
Current children cumulated vsize (Kb) 720608

[startup+90.0047 s]
Raw data (loadavg): 0.99 1.00 0.97 2/55 9597
Raw data (/proc/9597/stat): 9597 (pb2sat) R 9596 9597 4060 0 -1 0 263040 0 0 0 8434 540 0 0 25 0 1 0 21974004 766566400 168960 4294967295 134512640 135987407 3221224560 3220418504 135488133 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9597/statm): 187150 168960 364 364 0 186786 0
[pid=9597] vsize: 748600
Current children cumulated CPU time (s) 89.74
Current children cumulated vsize (Kb) 748600
One traced child (pid=9597) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 99.4626
CPU time (s): 99.1939
CPU user time (s): 93.3498
CPU system time (s): 5.84411
CPU usage (%): 99.7299
Max. virtual memory (cumulated for all children) (Kb): 748600

Verifier Data

ERROR: no interpretation found !