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/MIPLIB/miplib3/normalized-mps-v2-13-7-mitre.opb
MD5SUMcb52c3dd346b4d656b5e715b686fba39
Bench Categoryoptimization, small integers (OPTSMALLINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 8562
Optimality of the best value was proved NO
Number of terms in the objective function 9324
Biggest coefficient in the objective function 213
Number of bits for the biggest coefficient in the objective function 8
Sum of the numbers in the objective function 909647
Number of bits of the sum of numbers in the objective function 20
Biggest number in a constraint 1069
Number of bits of the biggest number in a constraint 11
Biggest sum of numbers in a constraint 909647
Number of bits of the biggest sum of numbers20
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1195.55
Number of variables10724
Total number of constraints12778
Number of constraints which are clauses140
Number of constraints which are cardinality constraints (but not clauses)12255
Number of constraints which are nor clauses,nor cardinality constraints383
Minimum length of a constraint1
Maximum length of a constraint98

Trace number 10476

Launcher Data

LAUNCH ON wulflinc22 THE 2005-09-23 18:35:04 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=9233 boxname=wulflinc22 idbench=1029 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  cb52c3dd346b4d656b5e715b686fba39  /oldhome/oroussel/tmp/wulflinc22/normalized-mps-v2-13-7-mitre.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc22/normalized-mps-v2-13-7-mitre.opb
IDLAUNCH: 9233
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 450.985
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		: 450.985
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:        915180 kB
Buffers:         12704 kB
Cached:          89432 kB
SwapCached:          0 kB
Active:          48256 kB
Inactive:        56804 kB
HighTotal:      131008 kB
HighFree:        41272 kB
LowTotal:       903652 kB
LowFree:        873908 kB
SwapTotal:     2097892 kB
SwapFree:      2097892 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:             8800 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-23 18:36:47 (client local time) WITH STATUS 0 IN 101.063 SECONDS
stats: 9233 7 101.063 0

Solver Data

c This solver internally uses Chaff 2004.11.15 Simplified
s UNKNOWN

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/9672/stat): 9672 (pb2sat) R 9671 9672 4060 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 22387324 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/9672/statm): 373 2 364 364 0 9 0
[pid=9672] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc22/normalized-mps-v2-13-7-mitre.opb

[startup+10.0015 s]
Raw data (loadavg): 0.93 0.97 0.91 2/55 9672
Raw data (/proc/9672/stat): 9672 (pb2sat) R 9671 9672 4060 0 -1 0 23631 0 0 0 940 57 0 0 25 0 1 0 22387324 73678848 12523 4294967295 134512640 135987407 3221224560 3221205872 134640432 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9672/statm): 17988 12523 364 364 0 17624 0
[pid=9672] vsize: 71952
Current children cumulated CPU time (s) 9.97
Current children cumulated vsize (Kb) 71952

[startup+20.0022 s]
Raw data (loadavg): 0.94 0.97 0.91 2/55 9672
Raw data (/proc/9672/stat): 9672 (pb2sat) R 9671 9672 4060 0 -1 0 50160 0 0 0 1880 115 0 0 25 0 1 0 22387324 159105024 27835 4294967295 134512640 135987407 3221224560 3221221284 135478476 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9672/statm): 38844 27835 364 364 0 38480 0
[pid=9672] vsize: 155376
Current children cumulated CPU time (s) 19.95
Current children cumulated vsize (Kb) 155376

[startup+30.0029 s]
Raw data (loadavg): 0.95 0.97 0.91 2/55 9672
Raw data (/proc/9672/stat): 9672 (pb2sat) R 9671 9672 4060 0 -1 0 90877 0 0 0 2791 202 0 0 25 0 1 0 22387324 280707072 46345 4294967295 134512640 135987407 3221224560 3221211060 134892396 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9672/statm): 68532 46345 364 364 0 68168 0
[pid=9672] vsize: 274128
Current children cumulated CPU time (s) 29.93
Current children cumulated vsize (Kb) 274128

[startup+40.0026 s]
Raw data (loadavg): 0.95 0.97 0.91 2/55 9672
Raw data (/proc/9672/stat): 9672 (pb2sat) R 9671 9672 4060 0 -1 0 104270 0 0 0 3763 230 0 0 25 0 1 0 22387324 317775872 59514 4294967295 134512640 135987407 3221224560 3221210448 134556288 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9672/statm): 77582 59514 364 364 0 77218 0
[pid=9672] vsize: 310328
Current children cumulated CPU time (s) 39.93
Current children cumulated vsize (Kb) 310328

[startup+50.0034 s]
Raw data (loadavg): 0.96 0.97 0.91 2/55 9672
Raw data (/proc/9672/stat): 9672 (pb2sat) R 9671 9672 4060 0 -1 0 118995 0 0 0 4730 262 0 0 25 0 1 0 22387324 321425408 73993 4294967295 134512640 135987407 3221224560 3221206480 134878060 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9672/statm): 78473 73993 364 364 0 78109 0
[pid=9672] vsize: 313892
Current children cumulated CPU time (s) 49.92
Current children cumulated vsize (Kb) 313892

[startup+60.0031 s]
Raw data (loadavg): 0.97 0.97 0.91 2/55 9672
Raw data (/proc/9672/stat): 9672 (pb2sat) R 9671 9672 4060 0 -1 0 182832 0 0 0 5595 394 0 0 25 0 1 0 22387324 550031360 93670 4294967295 134512640 135987407 3221224560 3221212460 135480425 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9672/statm): 134285 93670 364 364 0 133921 0
[pid=9672] vsize: 537140
Current children cumulated CPU time (s) 59.89
Current children cumulated vsize (Kb) 537140

[startup+70.0038 s]
Raw data (loadavg): 0.97 0.97 0.91 2/55 9672
Raw data (/proc/9672/stat): 9672 (pb2sat) R 9671 9672 4060 0 -1 0 195786 0 0 0 6563 425 0 0 25 0 1 0 22387324 587235328 106409 4294967295 134512640 135987407 3221224560 3221213644 135479997 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9672/statm): 143368 106409 364 364 0 143004 0
[pid=9672] vsize: 573472
Current children cumulated CPU time (s) 69.88
Current children cumulated vsize (Kb) 573472

[startup+80.0045 s]
Raw data (loadavg): 0.98 0.97 0.91 2/55 9672
Raw data (/proc/9672/stat): 9672 (pb2sat) R 9671 9672 4060 0 -1 0 210773 0 0 0 7531 457 0 0 25 0 1 0 22387324 592506880 121151 4294967295 134512640 135987407 3221224560 3221204032 134854997 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9672/statm): 144655 121151 364 364 0 144291 0
[pid=9672] vsize: 578620
Current children cumulated CPU time (s) 79.88
Current children cumulated vsize (Kb) 578620

[startup+90.0052 s]
Raw data (loadavg): 0.98 0.97 0.91 2/55 9672
Raw data (/proc/9672/stat): 9672 (pb2sat) R 9671 9672 4060 0 -1 0 224012 0 0 0 8497 490 0 0 25 0 1 0 22387324 646352896 134169 4294967295 134512640 135987407 3221224560 3221210752 134877710 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9672/statm): 157801 134169 364 364 0 157437 0
[pid=9672] vsize: 631204
Current children cumulated CPU time (s) 89.87
Current children cumulated vsize (Kb) 631204

[startup+100.006 s]
Raw data (loadavg): 0.98 0.97 0.91 2/55 9672
Raw data (/proc/9672/stat): 9672 (pb2sat) R 9671 9672 4060 0 -1 0 237313 0 0 0 9467 520 0 0 25 0 1 0 22387324 649596928 147247 4294967295 134512640 135987407 3221224560 3221213552 134861775 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9672/statm): 158593 147247 364 364 0 158229 0
[pid=9672] vsize: 634372
Current children cumulated CPU time (s) 99.87
Current children cumulated vsize (Kb) 634372



Mem limit exceeded: sending SIGTERM then SIGKILL

[startup+100.879 s]
Raw data (loadavg): 0.98 0.97 0.91 1/55 9672
Raw data (/proc/9672/stat): 9672 (pb2sat) T 9671 9672 4060 0 -1 0 242915 0 0 0 9543 529 0 0 25 0 1 0 22387324 943734784 152680 4294967295 134512640 135987407 3221224560 3221208844 135635874 0 0 5 16384 3222434794 0 0 17 0 0 0
Raw data (/proc/9672/statm): 230404 152680 364 364 0 230040 0
[pid=9672] vsize: 921616
Current children cumulated CPU time (s) 100.72
Current children cumulated vsize (Kb) 921616

Sending SIGTERM to -9672
Sleeping 2 seconds
Sending SIGKILL to -9672
One traced child (pid=9672) ended because it received signal 9 (SIGKILL)
All traced children have exited ! Game is over.

Child ended because it received signal 9 (SIGKILL)
Real time (s): 103.199
CPU time (s): 101.063
CPU user time (s): 95.4505
CPU system time (s): 5.61215
CPU usage (%): 97.9299
Max. virtual memory (cumulated for all children) (Kb): 921616

Verifier Data

ERROR: no interpretation found !