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/plato.asu.edu/pub/milp/normalized-mps-v2-13-7-dano3_3.opb
MD5SUMcb5fbc431eb68f8a2a8d0f81405ac2af
Bench Categoryoptimization, medium integers (OPTMEDINT)
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 20
Biggest coefficient in the objective function 524288
Number of bits for the biggest coefficient in the objective function 20
Sum of the numbers in the objective function 1048575
Number of bits of the sum of numbers in the objective function 20
Biggest number in a constraint 131072000
Number of bits of the biggest number in a constraint 27
Biggest sum of numbers in a constraint 576307709
Number of bits of the biggest sum of numbers30
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Number of variables270305
Total number of constraints3778
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)72
Number of constraints which are nor clauses,nor cardinality constraints3706
Minimum length of a constraint1
Maximum length of a constraint10600

Trace number 10538

Launcher Data

LAUNCH ON wulflinc15 THE 2005-09-23 18:54:56 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=9300 boxname=wulflinc15 idbench=1096 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  cb5fbc431eb68f8a2a8d0f81405ac2af  /oldhome/oroussel/tmp/wulflinc15/normalized-mps-v2-13-7-dano3_3.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc15/normalized-mps-v2-13-7-dano3_3.opb
IDLAUNCH: 9300
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.045
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		: 451.045
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:        865904 kB
Buffers:          4856 kB
Cached:         143044 kB
SwapCached:          0 kB
Active:          42500 kB
Inactive:       108284 kB
HighTotal:      131008 kB
HighFree:        51996 kB
LowTotal:       903652 kB
LowFree:        813908 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6984 kB
Slab:            12192 kB
Committed_AS:    63632 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 18:56:31 (client local time) WITH STATUS 0 IN 91.4401 SECONDS
stats: 9300 7 91.4401 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/9403/stat): 9403 (pb2sat) R 9402 9403 4057 0 -1 0 18 0 0 0 0 0 0 0 25 0 1 0 22505935 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/9403/statm): 373 2 364 364 0 9 0
[pid=9403] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc15/normalized-mps-v2-13-7-dano3_3.opb

[startup+10.0021 s]
Raw data (loadavg): 0.94 0.96 0.92 2/55 9403
Raw data (/proc/9403/stat): 9403 (pb2sat) R 9402 9403 4057 0 -1 0 27024 0 0 0 935 61 0 0 25 0 1 0 22505935 83513344 15899 4294967295 134512640 135987407 3221224560 3221123632 134887887 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9403/statm): 20389 15899 364 364 0 20025 0
[pid=9403] vsize: 81556
Current children cumulated CPU time (s) 9.96
Current children cumulated vsize (Kb) 81556

[startup+20.0029 s]
Raw data (loadavg): 0.95 0.96 0.92 2/55 9403
Raw data (/proc/9403/stat): 9403 (pb2sat) R 9402 9403 4057 0 -1 0 55278 0 0 0 1872 123 0 0 25 0 1 0 22505935 161361920 32910 4294967295 134512640 135987407 3221224560 3221158016 134865153 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9403/statm): 39395 32910 364 364 0 39031 0
[pid=9403] vsize: 157580
Current children cumulated CPU time (s) 19.95
Current children cumulated vsize (Kb) 157580

[startup+30.0027 s]
Raw data (loadavg): 0.95 0.96 0.92 2/55 9403
Raw data (/proc/9403/stat): 9403 (pb2sat) R 9402 9403 4057 0 -1 0 94813 0 0 0 2786 207 0 0 25 0 1 0 22505935 311382016 50238 4294967295 134512640 135987407 3221224560 3221029136 134640553 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9403/statm): 76021 50238 364 364 0 75657 0
[pid=9403] vsize: 304084
Current children cumulated CPU time (s) 29.93
Current children cumulated vsize (Kb) 304084

[startup+40.0036 s]
Raw data (loadavg): 0.96 0.96 0.92 2/55 9403
Raw data (/proc/9403/stat): 9403 (pb2sat) R 9402 9403 4057 0 -1 0 111359 0 0 0 3744 248 0 0 25 0 1 0 22505935 315977728 66511 4294967295 134512640 135987407 3221224560 3221062448 134887784 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9403/statm): 77143 66511 364 364 0 76779 0
[pid=9403] vsize: 308572
Current children cumulated CPU time (s) 39.92
Current children cumulated vsize (Kb) 308572

[startup+50.0044 s]
Raw data (loadavg): 0.97 0.96 0.92 2/55 9403
Raw data (/proc/9403/stat): 9403 (pb2sat) R 9402 9403 4057 0 -1 0 167465 0 0 0 4630 359 0 0 25 0 1 0 22505935 646062080 103002 4294967295 134512640 135987407 3221224560 3221038288 134887489 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9403/statm): 157730 103002 364 364 0 157366 0
[pid=9403] vsize: 630920
Current children cumulated CPU time (s) 49.89
Current children cumulated vsize (Kb) 630920

[startup+60.0052 s]
Raw data (loadavg): 0.97 0.96 0.92 2/55 9403
Raw data (/proc/9403/stat): 9403 (pb2sat) R 9402 9403 4057 0 -1 0 190760 0 0 0 5574 415 0 0 25 0 1 0 22505935 582868992 101498 4294967295 134512640 135987407 3221224560 3221163552 134802845 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9403/statm): 142302 101498 364 364 0 141938 0
[pid=9403] vsize: 569208
Current children cumulated CPU time (s) 59.89
Current children cumulated vsize (Kb) 569208

[startup+70.006 s]
Raw data (loadavg): 0.98 0.96 0.92 2/55 9403
Raw data (/proc/9403/stat): 9403 (pb2sat) R 9402 9403 4057 0 -1 0 207326 0 0 0 6533 456 0 0 25 0 1 0 22505935 587599872 117792 4294967295 134512640 135987407 3221224560 3221143712 134537491 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9403/statm): 143457 117792 364 364 0 143093 0
[pid=9403] vsize: 573828
Current children cumulated CPU time (s) 69.89
Current children cumulated vsize (Kb) 573828

[startup+80.0069 s]
Raw data (loadavg): 0.98 0.96 0.92 2/55 9403
Raw data (/proc/9403/stat): 9403 (pb2sat) R 9402 9403 4057 0 -1 0 222258 0 0 0 7498 491 0 0 25 0 1 0 22505935 641716224 132476 4294967295 134512640 135987407 3221224560 3221053168 134877726 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9403/statm): 156669 132476 364 364 0 156305 0
[pid=9403] vsize: 626676
Current children cumulated CPU time (s) 79.89
Current children cumulated vsize (Kb) 626676

[startup+90.0077 s]
Raw data (loadavg): 0.98 0.96 0.92 2/55 9403
Raw data (/proc/9403/stat): 9403 (pb2sat) R 9402 9403 4057 0 -1 0 237195 0 0 0 8467 521 0 0 25 0 1 0 22505935 646176768 147168 4294967295 134512640 135987407 3221224560 3220956860 134637002 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9403/statm): 157758 147168 364 364 0 157394 0
[pid=9403] vsize: 631032
Current children cumulated CPU time (s) 89.88
Current children cumulated vsize (Kb) 631032



Mem limit exceeded: sending SIGTERM then SIGKILL

[startup+91.2261 s]
Raw data (loadavg): 0.98 0.96 0.92 1/55 9403
Raw data (/proc/9403/stat): 9403 (pb2sat) T 9402 9403 4057 0 -1 0 245519 0 0 0 8572 538 0 0 25 0 1 0 22505935 943828992 155233 4294967295 134512640 135987407 3221224560 3221040476 135635874 0 0 5 16384 3222434794 0 0 17 1 0 0
Raw data (/proc/9403/statm): 230427 155233 364 364 0 230063 0
[pid=9403] vsize: 921708
Current children cumulated CPU time (s) 91.1
Current children cumulated vsize (Kb) 921708

Sending SIGTERM to -9403
Sleeping 2 seconds
Sending SIGKILL to -9403
One traced child (pid=9403) 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): 93.5474
CPU time (s): 91.4401
CPU user time (s): 85.743
CPU system time (s): 5.69713
CPU usage (%): 97.7473
Max. virtual memory (cumulated for all children) (Kb): 921708

Verifier Data

ERROR: no interpretation found !