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/MIPLIB/miplib3/normalized-mps-v2-20-10-dano3mip.opb
MD5SUMec262e52901896bc3a54080dbb9d2278
Bench Categoryoptimization, big integers (OPTBIGINT)
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 30
Biggest coefficient in the objective function 536870912
Number of bits for the biggest coefficient in the objective function 30
Sum of the numbers in the objective function 1073741823
Number of bits of the sum of numbers in the objective function 30
Biggest number in a constraint 67108864000
Number of bits of the biggest number in a constraint 36
Biggest sum of numbers in a constraint 569083166190
Number of bits of the biggest sum of numbers40
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Number of variables399966
Total number of constraints3778
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)600
Number of constraints which are nor clauses,nor cardinality constraints3178
Minimum length of a constraint1
Maximum length of a constraint15900

Trace number 10067

Launcher Data

LAUNCH ON wulflinc25 THE 2005-09-23 16:47:24 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8825 boxname=wulflinc25 idbench=621 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  ec262e52901896bc3a54080dbb9d2278  /oldhome/oroussel/tmp/wulflinc25/normalized-mps-v2-20-10-dano3mip.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc25/normalized-mps-v2-20-10-dano3mip.opb
IDLAUNCH: 8825
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.002
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		: 451.002
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:        884348 kB
Buffers:         17392 kB
Cached:         113032 kB
SwapCached:          0 kB
Active:          83184 kB
Inactive:        50204 kB
HighTotal:      131008 kB
HighFree:        14000 kB
LowTotal:       903652 kB
LowFree:        870348 kB
SwapTotal:     2097892 kB
SwapFree:      2097892 kB
Dirty:              52 kB
Writeback:           0 kB
Mapped:           6984 kB
Slab:            11312 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-23 16:49:00 (client local time) WITH STATUS 0 IN 92.9169 SECONDS
stats: 8825 7 92.9169 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/8466/stat): 8466 (pb2sat) R 8465 8466 4004 0 -1 0 18 0 0 0 0 0 0 0 20 0 1 0 21707654 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/8466/statm): 373 2 364 364 0 9 0
[pid=8466] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc25/normalized-mps-v2-20-10-dano3mip.opb

[startup+10.0016 s]
Raw data (loadavg): 0.94 0.98 0.95 2/55 8466
Raw data (/proc/8466/stat): 8466 (pb2sat) R 8465 8466 4004 0 -1 0 27886 0 0 0 929 66 0 0 25 0 1 0 21707654 86269952 16760 4294967295 134512640 135987407 3221224560 3220979264 134856487 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8466/statm): 21062 16760 364 364 0 20698 0
[pid=8466] vsize: 84248
Current children cumulated CPU time (s) 9.95
Current children cumulated vsize (Kb) 84248

[startup+20.0012 s]
Raw data (loadavg): 0.95 0.98 0.95 2/55 8466
Raw data (/proc/8466/stat): 8466 (pb2sat) R 8465 8466 4004 0 -1 0 55929 0 0 0 1863 130 0 0 25 0 1 0 21707654 163983360 33563 4294967295 134512640 135987407 3221224560 3220812412 134637002 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8466/statm): 40035 33563 364 364 0 39671 0
[pid=8466] vsize: 160140
Current children cumulated CPU time (s) 19.93
Current children cumulated vsize (Kb) 160140

[startup+30.0018 s]
Raw data (loadavg): 0.96 0.98 0.95 2/55 8466
Raw data (/proc/8466/stat): 8466 (pb2sat) R 8465 8466 4004 0 -1 0 95231 0 0 0 2776 216 0 0 25 0 1 0 21707654 313733120 50662 4294967295 134512640 135987407 3221224560 3220914088 134865972 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8466/statm): 76595 50662 364 364 0 76231 0
[pid=8466] vsize: 306380
Current children cumulated CPU time (s) 29.92
Current children cumulated vsize (Kb) 306380

[startup+40.0024 s]
Raw data (loadavg): 0.96 0.98 0.95 2/55 8466
Raw data (/proc/8466/stat): 8466 (pb2sat) R 8465 8466 4004 0 -1 0 111367 0 0 0 3737 254 0 0 25 0 1 0 21707654 318193664 66532 4294967295 134512640 135987407 3221224560 3220991132 134637002 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8466/statm): 77684 66532 364 364 0 77320 0
[pid=8466] vsize: 310736
Current children cumulated CPU time (s) 39.91
Current children cumulated vsize (Kb) 310736

[startup+50.003 s]
Raw data (loadavg): 0.97 0.98 0.95 2/55 8466
Raw data (/proc/8466/stat): 8466 (pb2sat) R 8465 8466 4004 0 -1 0 158720 0 0 0 4632 354 0 0 25 0 1 0 21707654 648548352 94262 4294967295 134512640 135987407 3221224560 3221082272 134887487 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8466/statm): 158337 94262 364 364 0 157973 0
[pid=8466] vsize: 633348
Current children cumulated CPU time (s) 49.86
Current children cumulated vsize (Kb) 633348

[startup+60.0036 s]
Raw data (loadavg): 0.97 0.98 0.95 2/55 8466
Raw data (/proc/8466/stat): 8466 (pb2sat) R 8465 8466 4004 0 -1 0 190253 0 0 0 5558 429 0 0 25 0 1 0 21707654 585490432 101015 4294967295 134512640 135987407 3221224560 3221205896 134765285 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8466/statm): 142942 101015 364 364 0 142578 0
[pid=8466] vsize: 571768
Current children cumulated CPU time (s) 59.87
Current children cumulated vsize (Kb) 571768

[startup+70.0042 s]
Raw data (loadavg): 0.98 0.98 0.95 2/55 8466
Raw data (/proc/8466/stat): 8466 (pb2sat) R 8465 8466 4004 0 -1 0 206153 0 0 0 6517 469 0 0 25 0 1 0 21707654 589680640 116651 4294967295 134512640 135987407 3221224560 3220892096 134887887 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8466/statm): 143965 116651 364 364 0 143601 0
[pid=8466] vsize: 575860
Current children cumulated CPU time (s) 69.86
Current children cumulated vsize (Kb) 575860

[startup+80.0048 s]
Raw data (loadavg): 0.98 0.98 0.95 2/55 8466
Raw data (/proc/8466/stat): 8466 (pb2sat) R 8465 8466 4004 0 -1 0 222311 0 0 0 7476 510 0 0 25 0 1 0 21707654 593870848 132541 4294967295 134512640 135987407 3221224560 3220973632 134878309 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8466/statm): 144988 132541 364 364 0 144624 0
[pid=8466] vsize: 579952
Current children cumulated CPU time (s) 79.86
Current children cumulated vsize (Kb) 579952

[startup+90.0054 s]
Raw data (loadavg): 0.98 0.98 0.95 2/55 8466
Raw data (/proc/8466/stat): 8466 (pb2sat) R 8465 8466 4004 0 -1 0 235202 0 0 0 8444 541 0 0 25 0 1 0 21707654 648392704 145222 4294967295 134512640 135987407 3221224560 3220771388 134637002 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8466/statm): 158299 145222 364 364 0 157935 0
[pid=8466] vsize: 633196
Current children cumulated CPU time (s) 89.85
Current children cumulated vsize (Kb) 633196



Mem limit exceeded: sending SIGTERM then SIGKILL

[startup+92.736 s]
Raw data (loadavg): 0.98 0.98 0.95 1/55 8466
Raw data (/proc/8466/stat): 8466 (pb2sat) T 8465 8466 4004 0 -1 0 244505 0 0 0 8696 561 0 0 25 0 1 0 21707654 943747072 154280 4294967295 134512640 135987407 3221224560 3221122796 135635874 0 0 5 16384 3222434794 0 0 17 0 0 0
Raw data (/proc/8466/statm): 230407 154280 364 364 0 230043 0
[pid=8466] vsize: 921628
Current children cumulated CPU time (s) 92.57
Current children cumulated vsize (Kb) 921628

Sending SIGTERM to -8466
Sleeping 2 seconds
Sending SIGKILL to -8466
One traced child (pid=8466) 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): 95.0594
CPU time (s): 92.9169
CPU user time (s): 86.9868
CPU system time (s): 5.9301
CPU usage (%): 97.7462
Max. virtual memory (cumulated for all children) (Kb): 921628

Verifier Data

ERROR: no interpretation found !