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-danoint.opb
MD5SUMcdd5642b047e784e87a00fe758efc418
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 13421772800
Number of bits of the biggest number in a constraint 34
Biggest sum of numbers in a constraint 53690300878
Number of bits of the biggest sum of numbers36
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Number of variables13898
Total number of constraints728
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 constraints656
Minimum length of a constraint1
Maximum length of a constraint1500

Trace number 10068

Launcher Data

LAUNCH ON wulflinc32 THE 2005-09-23 16:47:43 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8826 boxname=wulflinc32 idbench=622 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  cdd5642b047e784e87a00fe758efc418  /oldhome/oroussel/tmp/wulflinc32/normalized-mps-v2-20-10-danoint.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc32/normalized-mps-v2-20-10-danoint.opb
IDLAUNCH: 8826
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.145
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		: 451.145
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:      1034724 kB
MemFree:        922412 kB
Buffers:         14896 kB
Cached:          77380 kB
SwapCached:          0 kB
Active:          43332 kB
Inactive:        51832 kB
HighTotal:      131072 kB
HighFree:        49216 kB
LowTotal:       903652 kB
LowFree:        873196 kB
SwapTotal:     2097892 kB
SwapFree:      2097892 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6988 kB
Slab:            11404 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-23 16:49:14 (client local time) WITH STATUS 0 IN 89.0375 SECONDS
stats: 8826 7 89.0375 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/7968/stat): 7968 (pb2sat) R 7967 7968 4005 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 21703686 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/7968/statm): 373 2 364 364 0 9 0
[pid=7968] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc32/normalized-mps-v2-20-10-danoint.opb

[startup+10.002 s]
Raw data (loadavg): 0.93 0.98 0.96 2/55 7968
Raw data (/proc/7968/stat): 7968 (pb2sat) R 7967 7968 4005 0 -1 0 28777 0 0 0 928 68 0 0 25 0 1 0 21703686 80326656 17607 4294967295 134512640 135987407 3221224560 3221128932 134637037 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7968/statm): 19611 17607 364 364 0 19247 0
[pid=7968] vsize: 78444
Current children cumulated CPU time (s) 9.96
Current children cumulated vsize (Kb) 78444

[startup+20.0028 s]
Raw data (loadavg): 0.94 0.98 0.96 2/55 7968
Raw data (/proc/7968/stat): 7968 (pb2sat) R 7967 7968 4005 0 -1 0 57522 0 0 0 1863 132 0 0 25 0 1 0 21703686 158175232 35096 4294967295 134512640 135987407 3221224560 3221127948 134669203 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7968/statm): 38617 35096 364 364 0 38253 0
[pid=7968] vsize: 154468
Current children cumulated CPU time (s) 19.95
Current children cumulated vsize (Kb) 154468

[startup+30.0035 s]
Raw data (loadavg): 0.95 0.98 0.96 2/55 7968
Raw data (/proc/7968/stat): 7968 (pb2sat) R 7967 7968 4005 0 -1 0 97496 0 0 0 2777 215 0 0 25 0 1 0 21703686 308736000 52854 4294967295 134512640 135987407 3221224560 3221123408 134856625 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7968/statm): 75375 52854 364 364 0 75011 0
[pid=7968] vsize: 301500
Current children cumulated CPU time (s) 29.92
Current children cumulated vsize (Kb) 301500

[startup+40.0033 s]
Raw data (loadavg): 0.96 0.98 0.96 2/55 7968
Raw data (/proc/7968/stat): 7968 (pb2sat) R 7967 7968 4005 0 -1 0 114924 0 0 0 3729 262 0 0 25 0 1 0 21703686 314413056 69991 4294967295 134512640 135987407 3221224560 3221169472 134856587 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7968/statm): 76761 69991 364 364 0 76397 0
[pid=7968] vsize: 307044
Current children cumulated CPU time (s) 39.91
Current children cumulated vsize (Kb) 307044

[startup+50.0051 s]
Raw data (loadavg): 0.96 0.98 0.96 2/55 7968
Raw data (/proc/7968/stat): 7968 (pb2sat) R 7967 7968 4005 0 -1 0 181564 0 0 0 4583 403 0 0 25 0 1 0 21703686 551366656 92457 4294967295 134512640 135987407 3221224560 3221221200 134636919 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7968/statm): 134611 92457 364 364 0 134247 0
[pid=7968] vsize: 538444
Current children cumulated CPU time (s) 49.86
Current children cumulated vsize (Kb) 538444

[startup+60.0048 s]
Raw data (loadavg): 0.97 0.98 0.96 2/55 7968
Raw data (/proc/7968/stat): 7968 (pb2sat) R 7967 7968 4005 0 -1 0 195497 0 0 0 5547 439 0 0 25 0 1 0 21703686 588435456 106159 4294967295 134512640 135987407 3221224560 3220980100 134537546 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7968/statm): 143661 106159 364 364 0 143297 0
[pid=7968] vsize: 574644
Current children cumulated CPU time (s) 59.86
Current children cumulated vsize (Kb) 574644

[startup+70.0056 s]
Raw data (loadavg): 0.97 0.98 0.96 2/55 7968
Raw data (/proc/7968/stat): 7968 (pb2sat) R 7967 7968 4005 0 -1 0 211696 0 0 0 6506 480 0 0 25 0 1 0 21703686 592896000 122092 4294967295 134512640 135987407 3221224560 3221000076 135499868 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7968/statm): 144750 122092 364 364 0 144386 0
[pid=7968] vsize: 579000
Current children cumulated CPU time (s) 69.86
Current children cumulated vsize (Kb) 579000

[startup+80.0064 s]
Raw data (loadavg): 0.98 0.98 0.96 2/55 7968
Raw data (/proc/7968/stat): 7968 (pb2sat) R 7967 7968 4005 0 -1 0 224646 0 0 0 7475 510 0 0 25 0 1 0 21703686 647282688 134831 4294967295 134512640 135987407 3221224560 3220753804 134876578 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7968/statm): 158028 134831 364 364 0 157664 0
[pid=7968] vsize: 632112
Current children cumulated CPU time (s) 79.85
Current children cumulated vsize (Kb) 632112



Mem limit exceeded: sending SIGTERM then SIGKILL

[startup+88.8583 s]
Raw data (loadavg): 0.98 0.98 0.96 1/55 7968
Raw data (/proc/7968/stat): 7968 (pb2sat) T 7967 7968 4005 0 -1 0 242795 0 0 0 8315 554 0 0 25 0 1 0 21703686 943853568 152612 4294967295 134512640 135987407 3221224560 3221023036 135635874 0 0 5 16384 3222434794 0 0 17 0 0 0
Raw data (/proc/7968/statm): 230433 152612 364 364 0 230069 0
[pid=7968] vsize: 921732
Current children cumulated CPU time (s) 88.69
Current children cumulated vsize (Kb) 921732

Sending SIGTERM to -7968
Sleeping 2 seconds

[startup+90.0061 s]
Raw data (loadavg): 0.98 0.98 0.96 1/56 7969
Raw data (/proc/7968/stat): 7968 (pb2sat) S 7967 7968 4005 0 -1 0 242796 0 0 0 8317 554 0 0 25 0 1 0 21703686 943853568 152613 4294967295 134512640 135987407 3221224560 3221021544 135549753 0 16384 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7968/statm): 230433 152613 364 364 0 230069 0
[pid=7968] vsize: 921732
Current children cumulated CPU time (s) 88.71
Current children cumulated vsize (Kb) 921732
Sending SIGKILL to -7968
One traced child (pid=7968) 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): 91.1817
CPU time (s): 89.0375
CPU user time (s): 83.1744
CPU system time (s): 5.86311
CPU usage (%): 97.6484
Max. virtual memory (cumulated for all children) (Kb): 921732

Verifier Data

ERROR: no interpretation found !