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-e226.opb
MD5SUM1016087327a6705b555fca4fd222545d
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 5160
Biggest coefficient in the objective function 1563169453506560
Number of bits for the biggest coefficient in the objective function 51
Sum of the numbers in the objective function 45878128722315351
Number of bits of the sum of numbers in the objective function 56
Biggest number in a constraint 1563169453506560
Number of bits of the biggest number in a constraint 51
Biggest sum of numbers in a constraint 45878128722315351
Number of bits of the biggest sum of numbers56
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark8.5207
Number of variables8460
Total number of constraints223
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 constraints223
Minimum length of a constraint30
Maximum length of a constraint3210

Trace number 9872

Launcher Data

LAUNCH ON wulflinc3 THE 2005-09-23 16:04:28 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8629 boxname=wulflinc3 idbench=425 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  1016087327a6705b555fca4fd222545d  /oldhome/oroussel/tmp/wulflinc3/normalized-mps-v2-20-10-e226.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc3/normalized-mps-v2-20-10-e226.opb
IDLAUNCH: 8629
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.228
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		: 451.228
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:        935496 kB
Buffers:         12704 kB
Cached:          69100 kB
SwapCached:          0 kB
Active:          46152 kB
Inactive:        38616 kB
HighTotal:      131008 kB
HighFree:        57596 kB
LowTotal:       903652 kB
LowFree:        877900 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:             8868 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 16:06:17 (client local time) WITH STATUS 1 IN 108.371 SECONDS
stats: 8629 7 108.371 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/8451/stat): 8451 (pb2sat) R 8450 8451 4060 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 21502362 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/8451/statm): 373 2 364 364 0 9 0
[pid=8451] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc3/normalized-mps-v2-20-10-e226.opb

[startup+10.0023 s]
Raw data (loadavg): 0.93 0.96 0.93 2/55 8451
Raw data (/proc/8451/stat): 8451 (pb2sat) R 8450 8451 4060 0 -1 0 27962 0 0 0 933 63 0 0 25 0 1 0 21502362 85929984 16825 4294967295 134512640 135987407 3221224560 3220915984 134887887 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8451/statm): 20979 16825 364 364 0 20615 0
[pid=8451] vsize: 83916
Current children cumulated CPU time (s) 9.96
Current children cumulated vsize (Kb) 83916

[startup+20.0031 s]
Raw data (loadavg): 0.94 0.96 0.93 2/55 8451
Raw data (/proc/8451/stat): 8451 (pb2sat) R 8450 8451 4060 0 -1 0 59504 0 0 0 1863 130 0 0 25 0 1 0 21502362 182702080 37147 4294967295 134512640 135987407 3221224560 3220934716 134637002 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8451/statm): 44605 37147 364 364 0 44241 0
[pid=8451] vsize: 178420
Current children cumulated CPU time (s) 19.93
Current children cumulated vsize (Kb) 178420

[startup+30.004 s]
Raw data (loadavg): 0.95 0.96 0.93 2/55 8451
Raw data (/proc/8451/stat): 8451 (pb2sat) R 8450 8451 4060 0 -1 0 102834 0 0 0 2768 222 0 0 25 0 1 0 21502362 315523072 58274 4294967295 134512640 135987407 3221224560 3220943200 134887796 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8451/statm): 77032 58274 364 364 0 76668 0
[pid=8451] vsize: 308128
Current children cumulated CPU time (s) 29.9
Current children cumulated vsize (Kb) 308128

[startup+40.0038 s]
Raw data (loadavg): 0.96 0.96 0.93 2/55 8451
Raw data (/proc/8451/stat): 8451 (pb2sat) R 8450 8451 4060 0 -1 0 121571 0 0 0 3723 265 0 0 25 0 1 0 21502362 373542912 76785 4294967295 134512640 135987407 3221224560 3220959528 134861698 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8451/statm): 91197 76785 364 364 0 90833 0
[pid=8451] vsize: 364788
Current children cumulated CPU time (s) 39.88
Current children cumulated vsize (Kb) 364788

[startup+50.0047 s]
Raw data (loadavg): 0.96 0.96 0.93 2/55 8451
Raw data (/proc/8451/stat): 8451 (pb2sat) R 8450 8451 4060 0 -1 0 158367 0 0 0 4646 337 0 0 25 0 1 0 21502362 571166720 112708 4294967295 134512640 135987407 3221224560 3220968652 135482121 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8451/statm): 139445 112708 364 364 0 139081 0
[pid=8451] vsize: 557780
Current children cumulated CPU time (s) 49.83
Current children cumulated vsize (Kb) 557780

[startup+60.0055 s]
Raw data (loadavg): 0.97 0.96 0.93 2/55 8451
Raw data (/proc/8451/stat): 8451 (pb2sat) R 8450 8451 4060 0 -1 0 207837 0 0 0 5540 441 0 0 25 0 1 0 21502362 639184896 118656 4294967295 134512640 135987407 3221224560 3220979296 134856407 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8451/statm): 156051 118656 364 364 0 155687 0
[pid=8451] vsize: 624204
Current children cumulated CPU time (s) 59.81
Current children cumulated vsize (Kb) 624204

[startup+70.0063 s]
Raw data (loadavg): 0.97 0.96 0.93 2/55 8451
Raw data (/proc/8451/stat): 8451 (pb2sat) R 8450 8451 4060 0 -1 0 224974 0 0 0 6501 479 0 0 25 0 1 0 21502362 695042048 135586 4294967295 134512640 135987407 3221224560 3220994028 135499903 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8451/statm): 169688 135586 364 364 0 169324 0
[pid=8451] vsize: 678752
Current children cumulated CPU time (s) 69.8
Current children cumulated vsize (Kb) 678752

[startup+80.0072 s]
Raw data (loadavg): 0.98 0.96 0.93 2/55 8453
Raw data (/proc/8451/stat): 8451 (pb2sat) R 8450 8451 4060 0 -1 0 235355 0 0 0 7480 500 0 0 25 0 1 0 21502362 695988224 145781 4294967295 134512640 135987407 3221224560 3221054848 134866122 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8451/statm): 169919 145781 364 364 0 169555 0
[pid=8451] vsize: 679676
Current children cumulated CPU time (s) 79.8
Current children cumulated vsize (Kb) 679676

[startup+90.007 s]
Raw data (loadavg): 0.98 0.96 0.93 2/55 8453
Raw data (/proc/8451/stat): 8451 (pb2sat) R 8450 8451 4060 0 -1 0 247746 0 0 0 8455 525 0 0 25 0 1 0 21502362 696123392 157950 4294967295 134512640 135987407 3221224560 3221061408 134636919 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8451/statm): 169952 157950 364 364 0 169588 0
[pid=8451] vsize: 679808
Current children cumulated CPU time (s) 89.8
Current children cumulated vsize (Kb) 679808

[startup+100.007 s]
Raw data (loadavg): 0.98 0.96 0.93 2/55 8453
Raw data (/proc/8451/stat): 8451 (pb2sat) R 8450 8451 4060 0 -1 0 257427 0 0 0 9437 543 0 0 25 0 1 0 21502362 746590208 167458 4294967295 134512640 135987407 3221224560 3221066144 134887793 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8451/statm): 182273 167458 364 364 0 181909 0
[pid=8451] vsize: 729092
Current children cumulated CPU time (s) 99.8
Current children cumulated vsize (Kb) 729092
One traced child (pid=8451) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 108.573
CPU time (s): 108.371
CPU user time (s): 102.481
CPU system time (s): 5.8891
CPU usage (%): 99.8136
Max. virtual memory (cumulated for all children) (Kb): 729092

Verifier Data

ERROR: no interpretation found !