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/ftp.netlib.org/lp/data/normalized-mps-v2-20-10-sctap1.opb
MD5SUM3742d8a4a6db91830db1829244573c45
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 49064968192
Optimality of the best value was proved NO
Number of terms in the objective function 10800
Biggest coefficient in the objective function 42949672960
Number of bits for the biggest coefficient in the objective function 36
Sum of the numbers in the objective function 6356551592160
Number of bits of the sum of numbers in the objective function 43
Biggest number in a constraint 42949672960
Number of bits of the biggest number in a constraint 36
Biggest sum of numbers in a constraint 6356551592160
Number of bits of the biggest sum of numbers43
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1218.61
Number of variables14400
Total number of constraints300
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints300
Minimum length of a constraint90
Maximum length of a constraint660

Trace number 9916

Launcher Data

LAUNCH ON wulflinc11 THE 2005-09-23 16:10:45 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8670 boxname=wulflinc11 idbench=466 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  3742d8a4a6db91830db1829244573c45  /oldhome/oroussel/tmp/wulflinc11/normalized-mps-v2-20-10-sctap1.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc11/normalized-mps-v2-20-10-sctap1.opb
IDLAUNCH: 8670
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.045
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		: 451.045
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	: 899.07

/proc/meminfo:
MemTotal:      1034660 kB
MemFree:        909332 kB
Buffers:          8816 kB
Cached:          91008 kB
SwapCached:          0 kB
Active:          57316 kB
Inactive:        52084 kB
HighTotal:      131008 kB
HighFree:        37688 kB
LowTotal:       903652 kB
LowFree:        871644 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:            10272 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 16:12:17 (client local time) WITH STATUS 0 IN 89.1624 SECONDS
stats: 8670 7 89.1624 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/9265/stat): 9265 (pb2sat) R 9264 9265 4060 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 21523618 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/9265/statm): 373 2 364 364 0 9 0
[pid=9265] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc11/normalized-mps-v2-20-10-sctap1.opb

[startup+10.0016 s]
Raw data (loadavg): 0.92 0.94 0.90 2/55 9265
Raw data (/proc/9265/stat): 9265 (pb2sat) R 9264 9265 4060 0 -1 0 26150 0 0 0 931 65 0 0 25 0 1 0 21523618 81641472 14989 4294967295 134512640 135987407 3221224560 3221200492 134637002 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9265/statm): 19932 14989 364 364 0 19568 0
[pid=9265] vsize: 79728
Current children cumulated CPU time (s) 9.96
Current children cumulated vsize (Kb) 79728

[startup+20.0024 s]
Raw data (loadavg): 0.93 0.94 0.91 2/55 9265
Raw data (/proc/9265/stat): 9265 (pb2sat) R 9264 9265 4060 0 -1 0 54668 0 0 0 1869 126 0 0 25 0 1 0 21523618 159354880 32250 4294967295 134512640 135987407 3221224560 3221197188 134637037 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9265/statm): 38905 32250 364 364 0 38541 0
[pid=9265] vsize: 155620
Current children cumulated CPU time (s) 19.95
Current children cumulated vsize (Kb) 155620

[startup+30.0032 s]
Raw data (loadavg): 0.94 0.95 0.91 2/55 9265
Raw data (/proc/9265/stat): 9265 (pb2sat) R 9264 9265 4060 0 -1 0 94598 0 0 0 2784 208 0 0 25 0 1 0 21523618 309780480 49961 4294967295 134512640 135987407 3221224560 3221176592 134861761 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9265/statm): 75630 49961 364 364 0 75266 0
[pid=9265] vsize: 302520
Current children cumulated CPU time (s) 29.92
Current children cumulated vsize (Kb) 302520

[startup+40.004 s]
Raw data (loadavg): 0.95 0.95 0.91 2/55 9265
Raw data (/proc/9265/stat): 9265 (pb2sat) R 9264 9265 4060 0 -1 0 111754 0 0 0 3742 251 0 0 25 0 1 0 21523618 314511360 66822 4294967295 134512640 135987407 3221224560 3221198896 134887887 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9265/statm): 76785 66822 364 364 0 76421 0
[pid=9265] vsize: 307140
Current children cumulated CPU time (s) 39.93
Current children cumulated vsize (Kb) 307140

[startup+50.0048 s]
Raw data (loadavg): 0.96 0.95 0.91 2/55 9265
Raw data (/proc/9265/stat): 9265 (pb2sat) R 9264 9265 4060 0 -1 0 161172 0 0 0 4636 350 0 0 25 0 1 0 21523618 652234752 96609 4294967295 134512640 135987407 3221224560 3221205280 134887487 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9265/statm): 159237 96609 364 364 0 158873 0
[pid=9265] vsize: 636948
Current children cumulated CPU time (s) 49.86
Current children cumulated vsize (Kb) 636948

[startup+60.0046 s]
Raw data (loadavg): 0.96 0.95 0.91 2/55 9265
Raw data (/proc/9265/stat): 9265 (pb2sat) R 9264 9265 4060 0 -1 0 192314 0 0 0 5566 419 0 0 25 0 1 0 21523618 589176832 102969 4294967295 134512640 135987407 3221224560 3221120608 134560877 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9265/statm): 143842 102969 364 364 0 143478 0
[pid=9265] vsize: 575368
Current children cumulated CPU time (s) 59.85
Current children cumulated vsize (Kb) 575368

[startup+70.0054 s]
Raw data (loadavg): 0.97 0.95 0.91 2/55 9265
Raw data (/proc/9265/stat): 9265 (pb2sat) R 9264 9265 4060 0 -1 0 208727 0 0 0 6528 457 0 0 25 0 1 0 21523618 593907712 119109 4294967295 134512640 135987407 3221224560 3221110700 134892728 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9265/statm): 144997 119109 364 364 0 144633 0
[pid=9265] vsize: 579988
Current children cumulated CPU time (s) 69.85
Current children cumulated vsize (Kb) 579988

[startup+80.0061 s]
Raw data (loadavg): 0.97 0.95 0.91 2/55 9265
Raw data (/proc/9265/stat): 9265 (pb2sat) R 9264 9265 4060 0 -1 0 225087 0 0 0 7493 492 0 0 25 0 1 0 21523618 598638592 135197 4294967295 134512640 135987407 3221224560 3221221396 134562648 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9265/statm): 146152 135197 364 364 0 145788 0
[pid=9265] vsize: 584608
Current children cumulated CPU time (s) 79.85
Current children cumulated vsize (Kb) 584608



Mem limit exceeded: sending SIGTERM then SIGKILL

[startup+88.9994 s]
Raw data (loadavg): 0.98 0.95 0.91 1/55 9265
Raw data (/proc/9265/stat): 9265 (pb2sat) T 9264 9265 4060 0 -1 0 238967 0 0 0 8358 525 0 0 25 0 1 0 21523618 948211712 148891 4294967295 134512640 135987407 3221224560 3221130336 135544035 0 0 5 16384 3222434794 0 0 17 1 0 0
Raw data (/proc/9265/statm): 231497 148891 364 364 0 231133 0
[pid=9265] vsize: 925988
Current children cumulated CPU time (s) 88.83
Current children cumulated vsize (Kb) 925988

Sending SIGTERM to -9265
Sleeping 2 seconds

[startup+90.0069 s]
Raw data (loadavg): 0.98 0.95 0.91 1/56 9266
Raw data (/proc/9265/stat): 9265 (pb2sat) S 9264 9265 4060 0 -1 0 238968 0 0 0 8360 525 0 0 25 0 1 0 21523618 948211712 148892 4294967295 134512640 135987407 3221224560 3221128648 135549753 0 16384 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9265/statm): 231497 148892 364 364 0 231133 0
[pid=9265] vsize: 925988
Current children cumulated CPU time (s) 88.85
Current children cumulated vsize (Kb) 925988
Sending SIGKILL to -9265
One traced child (pid=9265) 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): 91.3093
CPU time (s): 89.1624
CPU user time (s): 83.6023
CPU system time (s): 5.56015
CPU usage (%): 97.6488
Max. virtual memory (cumulated for all children) (Kb): 925988

Verifier Data

ERROR: no interpretation found !