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/plato.asu.edu/pub/milp/normalized-mps-v2-20-10-neos7.opb
MD5SUMdff67dcbbc32b17a1cdb11074adc13dc
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 55313304576
Optimality of the best value was proved NO
Number of terms in the objective function 4506
Biggest coefficient in the objective function 8053063680000
Number of bits for the biggest coefficient in the objective function 43
Sum of the numbers in the objective function 590484474471966
Number of bits of the sum of numbers in the objective function 50
Biggest number in a constraint 536870912000000
Number of bits of the biggest number in a constraint 49
Biggest sum of numbers in a constraint 1073741839777215
Number of bits of the biggest sum of numbers50
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1226.81
Number of variables33010
Total number of constraints2578
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)566
Number of constraints which are nor clauses,nor cardinality constraints2012
Minimum length of a constraint1
Maximum length of a constraint441

Trace number 10177

Launcher Data

LAUNCH ON wulflinc5 THE 2005-09-23 17:24:48 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8936 boxname=wulflinc5 idbench=732 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  dff67dcbbc32b17a1cdb11074adc13dc  /oldhome/oroussel/tmp/wulflinc5/normalized-mps-v2-20-10-neos7.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc5/normalized-mps-v2-20-10-neos7.opb
IDLAUNCH: 8936
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.158
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		: 451.158
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:        932192 kB
Buffers:         15300 kB
Cached:          68272 kB
SwapCached:          0 kB
Active:          46140 kB
Inactive:        40340 kB
HighTotal:      131008 kB
HighFree:        58772 kB
LowTotal:       903652 kB
LowFree:        873420 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6976 kB
Slab:            10488 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 17:26:17 (client local time) WITH STATUS 0 IN 86.7148 SECONDS
stats: 8936 7 86.7148 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/9626/stat): 9626 (pb2sat) T 9625 9626 4060 0 -1 0 27 0 0 0 0 0 0 0 23 0 1 0 21983131 1527808 10 4294967295 134512640 135987407 3221224560 3221223964 135537037 0 0 5 0 3222434794 0 0 17 0 0 0
Raw data (/proc/9626/statm): 373 10 364 364 0 9 0
[pid=9626] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc5/normalized-mps-v2-20-10-neos7.opb

[startup+10.0024 s]
Raw data (loadavg): 0.92 0.95 0.91 2/55 9626
Raw data (/proc/9626/stat): 9626 (pb2sat) R 9625 9626 4060 0 -1 0 25697 0 0 0 933 64 0 0 25 0 1 0 21983131 81178624 14564 4294967295 134512640 135987407 3221224560 3221221952 134616297 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9626/statm): 19819 14564 364 364 0 19455 0
[pid=9626] vsize: 79276
Current children cumulated CPU time (s) 9.97
Current children cumulated vsize (Kb) 79276

[startup+20.0032 s]
Raw data (loadavg): 0.93 0.96 0.91 2/55 9626
Raw data (/proc/9626/stat): 9626 (pb2sat) R 9625 9626 4060 0 -1 0 53521 0 0 0 1869 126 0 0 25 0 1 0 21983131 159297536 31126 4294967295 134512640 135987407 3221224560 3221211812 134637840 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9626/statm): 38891 31126 364 364 0 38527 0
[pid=9626] vsize: 155564
Current children cumulated CPU time (s) 19.95
Current children cumulated vsize (Kb) 155564

[startup+30.0039 s]
Raw data (loadavg): 0.94 0.96 0.91 2/55 9626
Raw data (/proc/9626/stat): 9626 (pb2sat) R 9625 9626 4060 0 -1 0 94018 0 0 0 2777 217 0 0 25 0 1 0 21983131 275763200 49376 4294967295 134512640 135987407 3221224560 3221215660 134636961 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9626/statm): 67325 49376 364 364 0 66961 0
[pid=9626] vsize: 269300
Current children cumulated CPU time (s) 29.94
Current children cumulated vsize (Kb) 269300

[startup+40.0047 s]
Raw data (loadavg): 0.95 0.96 0.91 2/55 9626
Raw data (/proc/9626/stat): 9626 (pb2sat) R 9625 9626 4060 0 -1 0 109390 0 0 0 3739 253 0 0 25 0 1 0 21983131 315129856 64473 4294967295 134512640 135987407 3221224560 3221209264 134537400 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9626/statm): 76936 64473 364 364 0 76572 0
[pid=9626] vsize: 307744
Current children cumulated CPU time (s) 39.92
Current children cumulated vsize (Kb) 307744

[startup+50.0054 s]
Raw data (loadavg): 0.96 0.96 0.91 2/55 9626
Raw data (/proc/9626/stat): 9626 (pb2sat) R 9625 9626 4060 0 -1 0 151244 0 0 0 4648 341 0 0 25 0 1 0 21983131 442396672 86677 4294967295 134512640 135987407 3221224560 3221209856 134860994 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9626/statm): 108007 86677 364 364 0 107643 0
[pid=9626] vsize: 432028
Current children cumulated CPU time (s) 49.89
Current children cumulated vsize (Kb) 432028

[startup+60.0062 s]
Raw data (loadavg): 0.96 0.96 0.91 2/55 9626
Raw data (/proc/9626/stat): 9626 (pb2sat) R 9625 9626 4060 0 -1 0 189980 0 0 0 5556 433 0 0 25 0 1 0 21983131 547926016 100580 4294967295 134512640 135987407 3221224560 3221209504 134878895 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9626/statm): 133771 100580 364 364 0 133407 0
[pid=9626] vsize: 535084
Current children cumulated CPU time (s) 59.89
Current children cumulated vsize (Kb) 535084

[startup+70.0069 s]
Raw data (loadavg): 0.97 0.96 0.91 2/55 9626
Raw data (/proc/9626/stat): 9626 (pb2sat) R 9625 9626 4060 0 -1 0 204088 0 0 0 6519 470 0 0 25 0 1 0 21983131 586211328 114433 4294967295 134512640 135987407 3221224560 3221212288 134537354 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9626/statm): 143118 114433 364 364 0 142754 0
[pid=9626] vsize: 572472
Current children cumulated CPU time (s) 69.89
Current children cumulated vsize (Kb) 572472

[startup+80.0076 s]
Raw data (loadavg): 0.97 0.96 0.91 2/55 9626
Raw data (/proc/9626/stat): 9626 (pb2sat) R 9625 9626 4060 0 -1 0 220770 0 0 0 7476 512 0 0 25 0 1 0 21983131 592023552 130814 4294967295 134512640 135987407 3221224560 3221208556 134637002 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9626/statm): 144537 130814 364 364 0 144173 0
[pid=9626] vsize: 578148
Current children cumulated CPU time (s) 79.88
Current children cumulated vsize (Kb) 578148



Mem limit exceeded: sending SIGTERM then SIGKILL

[startup+86.4962 s]
Raw data (loadavg): 0.98 0.96 0.91 1/55 9626
Raw data (/proc/9626/stat): 9626 (pb2sat) T 9625 9626 4060 0 -1 0 265060 0 0 0 8029 601 0 0 25 0 1 0 21983131 943742976 173713 4294967295 134512640 135987407 3221224560 3221203436 135635874 0 0 5 16384 3222434794 0 0 17 0 0 0
Raw data (/proc/9626/statm): 230406 173713 364 364 0 230042 0
[pid=9626] vsize: 921624
Current children cumulated CPU time (s) 86.3
Current children cumulated vsize (Kb) 921624

Sending SIGTERM to -9626
Sleeping 2 seconds
Sending SIGKILL to -9626
One traced child (pid=9626) 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): 88.8574
CPU time (s): 86.7148
CPU user time (s): 80.3398
CPU system time (s): 6.37503
CPU usage (%): 97.5887
Max. virtual memory (cumulated for all children) (Kb): 921624

Verifier Data

ERROR: no interpretation found !