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/miplib/normalized-mps-v2-13-7-p0282.opb
MD5SUMa733e9fa1e4e3ac90baf85249f7c3e9a
Bench Categoryoptimization, medium integers (OPTMEDINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 258411
Optimality of the best value was proved YES
Number of terms in the objective function 282
Biggest coefficient in the objective function 160646
Number of bits for the biggest coefficient in the objective function 18
Sum of the numbers in the objective function 1302615
Number of bits of the sum of numbers in the objective function 21
Biggest number in a constraint 160646
Number of bits of the biggest number in a constraint 18
Biggest sum of numbers in a constraint 1302615
Number of bits of the biggest sum of numbers21
Best result obtained on this benchmarkOPTIMUM FOUND
Best CPU time to get the best result obtained on this benchmark50.5803
Number of variables282
Total number of constraints523
Number of constraints which are clauses177
Number of constraints which are cardinality constraints (but not clauses)282
Number of constraints which are nor clauses,nor cardinality constraints64
Minimum length of a constraint1
Maximum length of a constraint57

Trace number 10364

Launcher Data

LAUNCH ON wulflinc8 THE 2005-09-23 17:56:04 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=9119 boxname=wulflinc8 idbench=915 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  a733e9fa1e4e3ac90baf85249f7c3e9a  /oldhome/oroussel/tmp/wulflinc8/normalized-mps-v2-13-7-p0282.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc8/normalized-mps-v2-13-7-p0282.opb
IDLAUNCH: 9119
/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:        919060 kB
Buffers:         13516 kB
Cached:          84812 kB
SwapCached:          0 kB
Active:          45248 kB
Inactive:        56028 kB
HighTotal:      131008 kB
HighFree:        43008 kB
LowTotal:       903652 kB
LowFree:        876052 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6976 kB
Slab:             8652 kB
Committed_AS:    63624 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 17:57:54 (client local time) WITH STATUS 1 IN 110.042 SECONDS
stats: 9119 7 110.042 1

Solver Data

c This solver internally uses Chaff 2004.11.15 Simplified
c running zchaff...
c got solution with objective value: 746317
c small objective detected

	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/10154/stat): 10154 (pb2sat) R 10153 10154 4060 0 -1 0 18 0 0 0 0 0 0 0 24 0 1 0 22169040 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/10154/statm): 373 2 364 364 0 9 0
[pid=10154] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc8/normalized-mps-v2-13-7-p0282.opb

[startup+10.002 s]
Raw data (loadavg): 0.93 0.97 0.96 2/55 10154
Raw data (/proc/10154/stat): 10154 (pb2sat) R 10153 10154 4060 0 -1 0 31703 0 0 0 925 70 0 0 25 0 1 0 22169040 97570816 20502 4294967295 134512640 135987407 3221224560 3221152608 134537477 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10154/statm): 23821 20502 364 364 0 23457 0
[pid=10154] vsize: 95284
Current children cumulated CPU time (s) 9.95
Current children cumulated vsize (Kb) 95284

[startup+20.0018 s]
Raw data (loadavg): 0.94 0.97 0.96 2/55 10154
Raw data (/proc/10154/stat): 10154 (pb2sat) R 10153 10154 4060 0 -1 0 63036 0 0 0 1857 134 0 0 25 0 1 0 22169040 194342912 40617 4294967295 134512640 135987407 3221224560 3221186592 134887832 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10154/statm): 47447 40617 364 364 0 47083 0
[pid=10154] vsize: 189788
Current children cumulated CPU time (s) 19.91
Current children cumulated vsize (Kb) 189788

[startup+30.0026 s]
Raw data (loadavg): 0.95 0.97 0.96 2/55 10154
Raw data (/proc/10154/stat): 10154 (pb2sat) R 10153 10154 4060 0 -1 0 105998 0 0 0 2769 219 0 0 25 0 1 0 22169040 327163904 61382 4294967295 134512640 135987407 3221224560 3221192268 134637918 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10154/statm): 79874 61382 364 364 0 79510 0
[pid=10154] vsize: 319496
Current children cumulated CPU time (s) 29.88
Current children cumulated vsize (Kb) 319496

[startup+40.0023 s]
Raw data (loadavg): 0.96 0.97 0.96 2/55 10154
Raw data (/proc/10154/stat): 10154 (pb2sat) R 10153 10154 4060 0 -1 0 124377 0 0 0 3727 259 0 0 25 0 1 0 22169040 385454080 79541 4294967295 134512640 135987407 3221224560 3221194572 134637002 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10154/statm): 94105 79541 364 364 0 93741 0
[pid=10154] vsize: 376420
Current children cumulated CPU time (s) 39.86
Current children cumulated vsize (Kb) 376420

[startup+50.0031 s]
Raw data (loadavg): 0.96 0.97 0.96 2/55 10154
Raw data (/proc/10154/stat): 10154 (pb2sat) R 10153 10154 4060 0 -1 0 156395 0 0 0 4661 321 0 0 25 0 1 0 22169040 574967808 110843 4294967295 134512640 135987407 3221224560 3221199276 135482121 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10154/statm): 140373 110843 364 364 0 140009 0
[pid=10154] vsize: 561492
Current children cumulated CPU time (s) 49.82
Current children cumulated vsize (Kb) 561492

[startup+60.0029 s]
Raw data (loadavg): 0.97 0.97 0.96 2/55 10154
Raw data (/proc/10154/stat): 10154 (pb2sat) R 10153 10154 4060 0 -1 0 209141 0 0 0 5555 424 0 0 25 0 1 0 22169040 649068544 119925 4294967295 134512640 135987407 3221224560 3221186372 134866067 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10154/statm): 158464 119925 364 364 0 158100 0
[pid=10154] vsize: 633856
Current children cumulated CPU time (s) 59.79
Current children cumulated vsize (Kb) 633856

[startup+70.0027 s]
Raw data (loadavg): 0.97 0.97 0.96 2/55 10154
Raw data (/proc/10154/stat): 10154 (pb2sat) R 10153 10154 4060 0 -1 0 225669 0 0 0 6522 455 0 0 25 0 1 0 22169040 705335296 136259 4294967295 134512640 135987407 3221224560 3221205952 134862204 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10154/statm): 172201 136259 364 364 0 171837 0
[pid=10154] vsize: 688804
Current children cumulated CPU time (s) 69.77
Current children cumulated vsize (Kb) 688804

[startup+80.0034 s]
Raw data (loadavg): 0.98 0.97 0.96 2/55 10154
Raw data (/proc/10154/stat): 10154 (pb2sat) R 10153 10154 4060 0 -1 0 243974 0 0 0 7483 494 0 0 25 0 1 0 22169040 729260032 154345 4294967295 134512640 135987407 3221224560 3221179344 134856702 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10154/statm): 178042 154345 364 364 0 177678 0
[pid=10154] vsize: 712168
Current children cumulated CPU time (s) 79.77
Current children cumulated vsize (Kb) 712168

[startup+90.0032 s]
Raw data (loadavg): 0.98 0.97 0.96 2/55 10154
Raw data (/proc/10154/stat): 10154 (pb2sat) R 10153 10154 4060 0 -1 0 262131 0 0 0 8442 533 0 0 25 0 1 0 22169040 803520512 172283 4294967295 134512640 135987407 3221224560 3221200464 134877624 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10154/statm): 196172 172283 364 364 0 195808 0
[pid=10154] vsize: 784688
Current children cumulated CPU time (s) 89.75
Current children cumulated vsize (Kb) 784688

[startup+100.004 s]
Raw data (loadavg): 0.98 0.97 0.96 2/55 10154
Raw data (/proc/10154/stat): 10154 (pb2sat) R 10153 10154 4060 0 -1 0 276800 0 0 0 9414 559 0 0 25 0 1 0 22169040 822444032 186775 4294967295 134512640 135987407 3221224560 3221185872 134537376 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10154/statm): 200792 186775 364 364 0 200428 0
[pid=10154] vsize: 803168
Current children cumulated CPU time (s) 99.73
Current children cumulated vsize (Kb) 803168

[startup+110.005 s]
Raw data (loadavg): 0.98 0.97 0.96 2/55 10154
Raw data (/proc/10154/stat): 10154 (pb2sat) R 10153 10154 4060 0 -1 0 282717 0 0 0 10387 585 0 0 25 0 1 0 22169040 470392832 114370 4294967295 134512640 135987407 3221224560 3221223408 134884004 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10154/statm): 114842 114370 364 364 0 114478 0
[pid=10154] vsize: 459368
Current children cumulated CPU time (s) 109.72
Current children cumulated vsize (Kb) 459368
One traced child (pid=10154) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 110.313
CPU time (s): 110.042
CPU user time (s): 103.938
CPU system time (s): 6.10407
CPU usage (%): 99.7545
Max. virtual memory (cumulated for all children) (Kb): 803168

Verifier Data

ERROR: no interpretation found !