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-momentum1.opb
MD5SUM611e05ec291e603bb8a780ac778ac9aa
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableNO
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of terms in the objective function 31027
Biggest coefficient in the objective function 16384000000
Number of bits for the biggest coefficient in the objective function 34
Sum of the numbers in the objective function 1372391683575
Number of bits of the sum of numbers in the objective function 41
Biggest number in a constraint 536870912000000000000000
Number of bits of the biggest number in a constraint 79
Biggest sum of numbers in a constraint 1073792773951002037452800
Number of bits of the biggest sum of numbers80
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark30.6013
Number of variables41495
Total number of constraints47575
Number of constraints which are clauses24365
Number of constraints which are cardinality constraints (but not clauses)3166
Number of constraints which are nor clauses,nor cardinality constraints20044
Minimum length of a constraint1
Maximum length of a constraint840

Trace number 10031

Launcher Data

LAUNCH ON wulflinc4 THE 2005-09-23 16:37:14 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8783 boxname=wulflinc4 idbench=579 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  611e05ec291e603bb8a780ac778ac9aa  /oldhome/oroussel/tmp/wulflinc4/normalized-mps-v2-20-10-momentum1.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc4/normalized-mps-v2-20-10-momentum1.opb
IDLAUNCH: 8783
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.191
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		: 451.191
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:        921672 kB
Buffers:         12268 kB
Cached:          83068 kB
SwapCached:          0 kB
Active:          55188 kB
Inactive:        43040 kB
HighTotal:      131008 kB
HighFree:        43596 kB
LowTotal:       903652 kB
LowFree:        878076 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:             9164 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 16:39:06 (client local time) WITH STATUS 0 IN 109.319 SECONDS
stats: 8783 7 109.319 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/9073/stat): 9073 (pb2sat) R 9072 9073 4060 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 21698931 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/9073/statm): 373 2 364 364 0 9 0
[pid=9073] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc4/normalized-mps-v2-20-10-momentum1.opb

[startup+10.0017 s]
Raw data (loadavg): 0.93 0.96 0.97 2/55 9073
Raw data (/proc/9073/stat): 9073 (pb2sat) R 9072 9073 4060 0 -1 0 2528 0 0 0 993 6 0 0 25 0 1 0 21698931 9502720 1842 4294967295 134512640 135987407 3221224560 3221221872 134555852 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9073/statm): 2320 1842 364 364 0 1956 0
[pid=9073] vsize: 9280
Current children cumulated CPU time (s) 9.99
Current children cumulated vsize (Kb) 9280

[startup+20.0025 s]
Raw data (loadavg): 0.94 0.96 0.97 2/55 9073
Raw data (/proc/9073/stat): 9073 (pb2sat) R 9072 9073 4060 0 -1 0 6302 0 0 0 1983 14 0 0 25 0 1 0 21698931 21286912 4245 4294967295 134512640 135987407 3221224560 3221220832 134877708 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9073/statm): 5197 4245 364 364 0 4833 0
[pid=9073] vsize: 20788
Current children cumulated CPU time (s) 19.97
Current children cumulated vsize (Kb) 20788

[startup+30.0034 s]
Raw data (loadavg): 0.95 0.96 0.97 2/55 9073
Raw data (/proc/9073/stat): 9073 (pb2sat) R 9072 9073 4060 0 -1 0 22305 0 0 0 2941 54 0 0 25 0 1 0 21698931 65110016 14150 4294967295 134512640 135987407 3221224560 3221208544 134557938 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9073/statm): 15896 14150 364 364 0 15532 0
[pid=9073] vsize: 63584
Current children cumulated CPU time (s) 29.95
Current children cumulated vsize (Kb) 63584

[startup+40.0043 s]
Raw data (loadavg): 0.96 0.96 0.97 2/55 9073
Raw data (/proc/9073/stat): 9073 (pb2sat) R 9072 9073 4060 0 -1 0 51693 0 0 0 3877 118 0 0 25 0 1 0 21698931 162930688 29211 4294967295 134512640 135987407 3221224560 3221211424 134877638 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9073/statm): 39778 29211 364 364 0 39414 0
[pid=9073] vsize: 159112
Current children cumulated CPU time (s) 39.95
Current children cumulated vsize (Kb) 159112

[startup+50.0051 s]
Raw data (loadavg): 0.96 0.96 0.97 2/55 9073
Raw data (/proc/9073/stat): 9073 (pb2sat) R 9072 9073 4060 0 -1 0 78639 0 0 0 4824 168 0 0 22 0 1 0 21698931 226680832 46195 4294967295 134512640 135987407 3221224560 3221210656 134558671 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9073/statm): 55342 46196 364 364 0 54978 0
[pid=9073] vsize: 221368
Current children cumulated CPU time (s) 49.92
Current children cumulated vsize (Kb) 221368

[startup+60.0049 s]
Raw data (loadavg): 0.97 0.96 0.97 2/55 9073
Raw data (/proc/9073/stat): 9073 (pb2sat) R 9072 9073 4060 0 -1 0 103729 0 0 0 5770 221 0 0 25 0 1 0 21698931 316186624 58752 4294967295 134512640 135987407 3221224560 3221209460 134556148 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9073/statm): 77194 58752 364 364 0 76830 0
[pid=9073] vsize: 308776
Current children cumulated CPU time (s) 59.91
Current children cumulated vsize (Kb) 308776

[startup+70.0048 s]
Raw data (loadavg): 0.97 0.96 0.97 2/55 9073
Raw data (/proc/9073/stat): 9073 (pb2sat) R 9072 9073 4060 0 -1 0 143977 0 0 0 6683 304 0 0 25 0 1 0 21698931 440221696 79351 4294967295 134512640 135987407 3221224560 3221209648 134887887 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9073/statm): 107476 79351 364 364 0 107112 0
[pid=9073] vsize: 429904
Current children cumulated CPU time (s) 69.87
Current children cumulated vsize (Kb) 429904

[startup+80.0047 s]
Raw data (loadavg): 0.98 0.96 0.97 2/55 9073
Raw data (/proc/9073/stat): 9073 (pb2sat) R 9072 9073 4060 0 -1 0 158438 0 0 0 7651 335 0 0 25 0 1 0 21698931 444260352 93525 4294967295 134512640 135987407 3221224560 3221208460 134876624 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9073/statm): 108462 93525 364 364 0 108098 0
[pid=9073] vsize: 433848
Current children cumulated CPU time (s) 79.86
Current children cumulated vsize (Kb) 433848

[startup+90.0055 s]
Raw data (loadavg): 0.98 0.96 0.97 2/55 9073
Raw data (/proc/9073/stat): 9073 (pb2sat) R 9072 9073 4060 0 -1 0 195975 0 0 0 8565 420 0 0 25 0 1 0 21698931 550227968 106237 4294967295 134512640 135987407 3221224560 3221209588 134537546 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9073/statm): 134333 106237 364 364 0 133969 0
[pid=9073] vsize: 537332
Current children cumulated CPU time (s) 89.85
Current children cumulated vsize (Kb) 537332

[startup+100.005 s]
Raw data (loadavg): 0.98 0.96 0.97 2/55 9073
Raw data (/proc/9073/stat): 9073 (pb2sat) R 9072 9073 4060 0 -1 0 208690 0 0 0 9539 446 0 0 25 0 1 0 21698931 589340672 118709 4294967295 134512640 135987407 3221224560 3221208912 134802877 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9073/statm): 143882 118709 364 364 0 143518 0
[pid=9073] vsize: 575528
Current children cumulated CPU time (s) 99.85
Current children cumulated vsize (Kb) 575528



Mem limit exceeded: sending SIGTERM then SIGKILL

[startup+109.139 s]
Raw data (loadavg): 0.98 0.97 0.97 1/55 9073
Raw data (/proc/9073/stat): 9073 (pb2sat) T 9072 9073 4060 0 -1 0 258676 0 0 0 10346 547 0 0 25 0 1 0 21698931 943845376 167118 4294967295 134512640 135987407 3221224560 3221207836 135635874 0 0 5 16384 3222434794 0 0 17 1 0 0
Raw data (/proc/9073/statm): 230431 167118 364 364 0 230067 0
[pid=9073] vsize: 921724
Current children cumulated CPU time (s) 108.93
Current children cumulated vsize (Kb) 921724

Sending SIGTERM to -9073
Sleeping 2 seconds

[startup+110.006 s]
Raw data (loadavg): 0.98 0.97 0.97 1/56 9074
Raw data (/proc/9073/stat): 9073 (pb2sat) S 9072 9073 4060 0 -1 0 258677 0 0 0 10351 547 0 0 25 0 1 0 21698931 943845376 167119 4294967295 134512640 135987407 3221224560 3221206392 135549753 0 16384 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9073/statm): 230431 167119 364 364 0 230067 0
[pid=9073] vsize: 921724
Current children cumulated CPU time (s) 108.98
Current children cumulated vsize (Kb) 921724
Sending SIGKILL to -9073
One traced child (pid=9073) 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): 111.48
CPU time (s): 109.319
CPU user time (s): 103.512
CPU system time (s): 5.80712
CPU usage (%): 98.0622
Max. virtual memory (cumulated for all children) (Kb): 921724

Verifier Data

ERROR: no interpretation found !