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-neos19.opb
MD5SUM6eb30c4e664b9c0e8d94f2aea74a91a3
Bench Categoryoptimization, small integers (OPTSMALLINT)
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 1611
Biggest coefficient in the objective function 1
Number of bits for the biggest coefficient in the objective function 1
Sum of the numbers in the objective function 1611
Number of bits of the sum of numbers in the objective function 11
Biggest number in a constraint 24576
Number of bits of the biggest number in a constraint 15
Biggest sum of numbers in a constraint 98256
Number of bits of the biggest sum of numbers17
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Number of variables1041679
Total number of constraints137871
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)10091
Number of constraints which are nor clauses,nor cardinality constraints127780
Minimum length of a constraint1
Maximum length of a constraint275

Trace number 10174

Launcher Data

LAUNCH ON wulflinc23 THE 2005-09-23 17:23:19 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8929 boxname=wulflinc23 idbench=725 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  6eb30c4e664b9c0e8d94f2aea74a91a3  /oldhome/oroussel/tmp/wulflinc23/normalized-mps-v2-20-10-neos19.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc23/normalized-mps-v2-20-10-neos19.opb
IDLAUNCH: 8929
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.185
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	: 3
cpu MHz		: 451.185
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:        838416 kB
Buffers:         14848 kB
Cached:         162564 kB
SwapCached:          0 kB
Active:         120944 kB
Inactive:        59380 kB
HighTotal:      131008 kB
HighFree:         3780 kB
LowTotal:       903652 kB
LowFree:        834636 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:            10312 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 17:25:48 (client local time) WITH STATUS 1 IN 147.151 SECONDS
stats: 8929 7 147.151 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/9581/stat): 9581 (pb2sat) R 9580 9581 4060 0 -1 0 18 0 0 0 0 0 0 0 22 0 1 0 21954453 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/9581/statm): 373 2 364 364 0 9 0
[pid=9581] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc23/normalized-mps-v2-20-10-neos19.opb

[startup+10.0011 s]
Raw data (loadavg): 1.08 0.99 0.92 2/55 9581
Raw data (/proc/9581/stat): 9581 (pb2sat) R 9580 9581 4060 0 -1 0 165 0 0 0 993 4 0 0 25 0 1 0 21954453 1806336 146 4294967295 134512640 135987407 3221224560 3221221952 134616293 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9581/statm): 441 146 364 364 0 77 0
[pid=9581] vsize: 1764
Current children cumulated CPU time (s) 9.97
Current children cumulated vsize (Kb) 1764

[startup+20.0018 s]
Raw data (loadavg): 1.06 0.99 0.92 2/55 9581
Raw data (/proc/9581/stat): 9581 (pb2sat) R 9580 9581 4060 0 -1 0 16079 0 0 0 1949 44 0 0 25 0 1 0 21954453 52101120 9620 4294967295 134512640 135987407 3221224560 3221221904 134612687 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9581/statm): 12720 9620 364 364 0 12356 0
[pid=9581] vsize: 50880
Current children cumulated CPU time (s) 19.93
Current children cumulated vsize (Kb) 50880

[startup+30.0014 s]
Raw data (loadavg): 1.05 0.99 0.92 2/55 9581
Raw data (/proc/9581/stat): 9581 (pb2sat) R 9580 9581 4060 0 -1 0 34591 0 0 0 2900 88 0 0 25 0 1 0 21954453 105791488 21541 4294967295 134512640 135987407 3221224560 3221221760 135141362 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9581/statm): 25828 21541 364 364 0 25464 0
[pid=9581] vsize: 103312
Current children cumulated CPU time (s) 29.88
Current children cumulated vsize (Kb) 103312

[startup+40.0021 s]
Raw data (loadavg): 1.05 0.99 0.92 2/55 9581
Raw data (/proc/9581/stat): 9581 (pb2sat) R 9580 9581 4060 0 -1 0 54616 0 0 0 3847 139 0 0 25 0 1 0 21954453 222670848 38039 4294967295 134512640 135987407 3221224560 3221221296 134856505 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9581/statm): 54363 38042 364 364 0 53999 0
[pid=9581] vsize: 217452
Current children cumulated CPU time (s) 39.86
Current children cumulated vsize (Kb) 217452

[startup+50.0027 s]
Raw data (loadavg): 1.04 0.99 0.92 2/55 9581
Raw data (/proc/9581/stat): 9581 (pb2sat) R 9580 9581 4060 0 -1 0 75875 0 0 0 4794 188 0 0 25 0 1 0 21954453 262696960 49657 4294967295 134512640 135987407 3221224560 3221220400 134887487 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9581/statm): 64135 49661 364 364 0 63771 0
[pid=9581] vsize: 256540
Current children cumulated CPU time (s) 49.82
Current children cumulated vsize (Kb) 256540

[startup+60.0023 s]
Raw data (loadavg): 1.03 0.99 0.92 2/55 9581
Raw data (/proc/9581/stat): 9581 (pb2sat) R 9580 9581 4060 0 -1 0 87260 0 0 0 5761 219 0 0 25 0 1 0 21954453 269578240 54706 4294967295 134512640 135987407 3221224560 3221220204 135481666 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9581/statm): 65815 54706 364 364 0 65451 0
[pid=9581] vsize: 263260
Current children cumulated CPU time (s) 59.8
Current children cumulated vsize (Kb) 263260

[startup+70.002 s]
Raw data (loadavg): 1.03 0.99 0.92 2/55 9581
Raw data (/proc/9581/stat): 9581 (pb2sat) R 9580 9581 4060 0 -1 0 122180 0 0 0 6685 295 0 0 25 0 1 0 21954453 389406720 71052 4294967295 134512640 135987407 3221224560 3221221304 135544177 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9581/statm): 95070 71052 364 364 0 94706 0
[pid=9581] vsize: 380280
Current children cumulated CPU time (s) 69.8
Current children cumulated vsize (Kb) 380280

[startup+80.0316 s]
Raw data (loadavg): 1.02 0.99 0.92 2/55 9581
Raw data (/proc/9581/stat): 9581 (pb2sat) R 9580 9581 4060 0 -1 0 133768 0 0 0 7650 327 0 0 25 0 1 0 21954453 409821184 81414 4294967295 134512640 135987407 3221224560 3221221952 134615218 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9581/statm): 100054 81414 364 364 0 99690 0
[pid=9581] vsize: 400216
Current children cumulated CPU time (s) 79.77
Current children cumulated vsize (Kb) 400216

[startup+90.0322 s]
Raw data (loadavg): 1.02 0.99 0.92 2/55 9581
Raw data (/proc/9581/stat): 9581 (pb2sat) R 9580 9581 4060 0 -1 0 155852 0 0 0 8595 381 0 0 25 0 1 0 21954453 475021312 91022 4294967295 134512640 135987407 3221224560 3221218848 134866053 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9581/statm): 115972 91022 364 364 0 115608 0
[pid=9581] vsize: 463888
Current children cumulated CPU time (s) 89.76
Current children cumulated vsize (Kb) 463888

[startup+100.032 s]
Raw data (loadavg): 1.02 0.99 0.92 2/55 9581
Raw data (/proc/9581/stat): 9581 (pb2sat) R 9580 9581 4060 0 -1 0 166328 0 0 0 9564 410 0 0 25 0 1 0 21954453 490971136 101298 4294967295 134512640 135987407 3221224560 3221222028 134609745 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9581/statm): 119866 101298 364 364 0 119502 0
[pid=9581] vsize: 479464
Current children cumulated CPU time (s) 99.74
Current children cumulated vsize (Kb) 479464

[startup+110.032 s]
Raw data (loadavg): 1.01 0.99 0.92 2/55 9581
Raw data (/proc/9581/stat): 9581 (pb2sat) R 9580 9581 4060 0 -1 0 175593 0 0 0 10535 438 0 0 25 0 1 0 21954453 521940992 110387 4294967295 134512640 135987407 3221224560 3221220736 134887887 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9581/statm): 127427 110388 364 364 0 127063 0
[pid=9581] vsize: 509708
Current children cumulated CPU time (s) 109.73
Current children cumulated vsize (Kb) 509708

[startup+120.032 s]
Raw data (loadavg): 1.01 0.99 0.92 2/55 9581
Raw data (/proc/9581/stat): 9581 (pb2sat) R 9580 9581 4060 0 -1 0 186100 0 0 0 11497 474 0 0 25 0 1 0 21954453 538025984 120693 4294967295 134512640 135987407 3221224560 3221221296 134856587 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9581/statm): 131354 120693 364 364 0 130990 0
[pid=9581] vsize: 525416
Current children cumulated CPU time (s) 119.71
Current children cumulated vsize (Kb) 525416

[startup+130.032 s]
Raw data (loadavg): 1.01 0.99 0.92 2/55 9581
Raw data (/proc/9581/stat): 9581 (pb2sat) R 9580 9581 4060 0 -1 0 247618 0 0 0 12364 600 0 0 25 0 1 0 21954453 767868928 143222 4294967295 134512640 135987407 3221224560 3221219968 135486786 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9581/statm): 187468 143222 364 364 0 187104 0
[pid=9581] vsize: 749872
Current children cumulated CPU time (s) 129.64
Current children cumulated vsize (Kb) 749872

[startup+140.032 s]
Raw data (loadavg): 1.01 0.99 0.92 2/55 9581
Raw data (/proc/9581/stat): 9581 (pb2sat) R 9580 9581 4060 0 -1 0 257939 0 0 0 13335 627 0 0 25 0 1 0 21954453 796323840 153363 4294967295 134512640 135987407 3221224560 3221180300 134677714 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9581/statm): 194415 153363 364 364 0 194051 0
[pid=9581] vsize: 777660
Current children cumulated CPU time (s) 139.62
Current children cumulated vsize (Kb) 777660
One traced child (pid=9581) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 147.555
CPU time (s): 147.151
CPU user time (s): 140.453
CPU system time (s): 6.69798
CPU usage (%): 99.726
Max. virtual memory (cumulated for all children) (Kb): 777660

Verifier Data

ERROR: no interpretation found !