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/miplib2003/normalized-mps-v2-20-10-danoint.opb
MD5SUM5f77f2edb47ee93c98f51bc518147b4a
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 10005

Launcher Data

LAUNCH ON wulflinc23 THE 2005-09-23 16:29:37 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8767 boxname=wulflinc23 idbench=563 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  5f77f2edb47ee93c98f51bc518147b4a  /oldhome/oroussel/tmp/wulflinc23/normalized-mps-v2-20-10-danoint.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc23/normalized-mps-v2-20-10-danoint.opb
IDLAUNCH: 8767
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.185
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		: 451.185
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:        917484 kB
Buffers:         14272 kB
Cached:          84396 kB
SwapCached:          0 kB
Active:          60744 kB
Inactive:        40824 kB
HighTotal:      131008 kB
HighFree:        42336 kB
LowTotal:       903652 kB
LowFree:        875148 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:             9980 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 16:31:09 (client local time) WITH STATUS 0 IN 89.8813 SECONDS
stats: 8767 7 89.8813 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/8179/stat): 8179 (pb2sat) R 8178 8179 4060 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 21632036 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/8179/statm): 373 2 364 364 0 9 0
[pid=8179] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc23/normalized-mps-v2-20-10-danoint.opb

[startup+10.0019 s]
Raw data (loadavg): 0.92 0.93 0.94 2/55 8179
Raw data (/proc/8179/stat): 8179 (pb2sat) R 8178 8179 4060 0 -1 0 29048 0 0 0 925 71 0 0 25 0 1 0 21632036 80453632 17873 4294967295 134512640 135987407 3221224560 3221211136 134856672 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8179/statm): 19642 17873 364 364 0 19278 0
[pid=8179] vsize: 78568
Current children cumulated CPU time (s) 9.96
Current children cumulated vsize (Kb) 78568

[startup+20.0025 s]
Raw data (loadavg): 0.93 0.94 0.94 2/55 8179
Raw data (/proc/8179/stat): 8179 (pb2sat) R 8178 8179 4060 0 -1 0 57704 0 0 0 1859 136 0 0 25 0 1 0 21632036 158842880 35273 4294967295 134512640 135987407 3221224560 3221201792 134861966 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8179/statm): 38780 35273 364 364 0 38416 0
[pid=8179] vsize: 155120
Current children cumulated CPU time (s) 19.95
Current children cumulated vsize (Kb) 155120

[startup+30.0031 s]
Raw data (loadavg): 0.94 0.94 0.94 2/55 8179
Raw data (/proc/8179/stat): 8179 (pb2sat) R 8178 8179 4060 0 -1 0 98692 0 0 0 2768 224 0 0 25 0 1 0 21632036 315322368 54051 4294967295 134512640 135987407 3221224560 3221050800 134855042 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8179/statm): 76983 54051 364 364 0 76619 0
[pid=8179] vsize: 307932
Current children cumulated CPU time (s) 29.92
Current children cumulated vsize (Kb) 307932

[startup+40.0038 s]
Raw data (loadavg): 0.95 0.94 0.94 2/55 8179
Raw data (/proc/8179/stat): 8179 (pb2sat) R 8178 8179 4060 0 -1 0 115359 0 0 0 3734 257 0 0 25 0 1 0 21632036 321134592 70449 4294967295 134512640 135987407 3221224560 3221090480 134876615 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8179/statm): 78402 70449 364 364 0 78038 0
[pid=8179] vsize: 313608
Current children cumulated CPU time (s) 39.91
Current children cumulated vsize (Kb) 313608

[startup+50.0044 s]
Raw data (loadavg): 0.96 0.94 0.94 2/55 8179
Raw data (/proc/8179/stat): 8179 (pb2sat) R 8178 8179 4060 0 -1 0 179657 0 0 0 4592 396 0 0 25 0 1 0 21632036 549740544 90580 4294967295 134512640 135987407 3221224560 3220873984 134560741 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8179/statm): 134214 90580 364 364 0 133850 0
[pid=8179] vsize: 536856
Current children cumulated CPU time (s) 49.88
Current children cumulated vsize (Kb) 536856

[startup+60.0051 s]
Raw data (loadavg): 0.96 0.94 0.94 2/55 8179
Raw data (/proc/8179/stat): 8179 (pb2sat) R 8178 8179 4060 0 -1 0 193951 0 0 0 5558 431 0 0 25 0 1 0 21632036 587755520 104642 4294967295 134512640 135987407 3221224560 3221221448 134562645 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8179/statm): 143495 104642 364 364 0 143131 0
[pid=8179] vsize: 573980
Current children cumulated CPU time (s) 59.89
Current children cumulated vsize (Kb) 573980

[startup+70.0057 s]
Raw data (loadavg): 0.97 0.94 0.94 2/55 8179
Raw data (/proc/8179/stat): 8179 (pb2sat) R 8178 8179 4060 0 -1 0 210279 0 0 0 6520 468 0 0 25 0 1 0 21632036 592216064 120701 4294967295 134512640 135987407 3221224560 3220774136 134877813 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8179/statm): 144584 120701 364 364 0 144220 0
[pid=8179] vsize: 578336
Current children cumulated CPU time (s) 69.88
Current children cumulated vsize (Kb) 578336

[startup+80.0063 s]
Raw data (loadavg): 0.97 0.95 0.94 2/55 8179
Raw data (/proc/8179/stat): 8179 (pb2sat) R 8178 8179 4060 0 -1 0 223717 0 0 0 7490 498 0 0 25 0 1 0 21632036 645926912 133916 4294967295 134512640 135987407 3221224560 3221003104 134877726 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8179/statm): 157697 133916 364 364 0 157333 0
[pid=8179] vsize: 630788
Current children cumulated CPU time (s) 79.88
Current children cumulated vsize (Kb) 630788



Mem limit exceeded: sending SIGTERM then SIGKILL

[startup+89.6813 s]
Raw data (loadavg): 0.98 0.95 0.94 1/55 8179
Raw data (/proc/8179/stat): 8179 (pb2sat) T 8178 8179 4060 0 -1 0 243220 0 0 0 8414 540 0 0 25 0 1 0 21632036 943849472 153023 4294967295 134512640 135987407 3221224560 3221154412 135635874 0 0 5 16384 3222434794 0 0 17 1 0 0
Raw data (/proc/8179/statm): 230432 153023 364 364 0 230068 0
[pid=8179] vsize: 921728
Current children cumulated CPU time (s) 89.54
Current children cumulated vsize (Kb) 921728

Sending SIGTERM to -8179
Sleeping 2 seconds

[startup+90.007 s]
Raw data (loadavg): 0.98 0.95 0.94 1/56 8180
Raw data (/proc/8179/stat): 8179 (pb2sat) S 8178 8179 4060 0 -1 0 243221 0 0 0 8415 540 0 0 25 0 1 0 21632036 943849472 153024 4294967295 134512640 135987407 3221224560 3221153208 135549753 0 16384 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8179/statm): 230432 153024 364 364 0 230068 0
[pid=8179] vsize: 921728
Current children cumulated CPU time (s) 89.55
Current children cumulated vsize (Kb) 921728
Sending SIGKILL to -8179
One traced child (pid=8179) 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): 92.0019
CPU time (s): 89.8813
CPU user time (s): 84.1592
CPU system time (s): 5.72213
CPU usage (%): 97.6951
Max. virtual memory (cumulated for all children) (Kb): 921728

Verifier Data

ERROR: no interpretation found !