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-v2-13-7/ftp.netlib.org/lp/data/normalized-mps-v2-13-7-ship04s.opb
MD5SUMa586e9246f27773484b1d2b61a85352d
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 29160
Biggest coefficient in the objective function 1930952704000
Number of bits for the biggest coefficient in the objective function 41
Sum of the numbers in the objective function 270105641840925
Number of bits of the sum of numbers in the objective function 48
Biggest number in a constraint 1930952704000
Number of bits of the biggest number in a constraint 41
Biggest sum of numbers in a constraint 270105641840925
Number of bits of the biggest sum of numbers48
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.52277
Number of variables29160
Total number of constraints352
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 constraints352
Minimum length of a constraint20
Maximum length of a constraint1320

Trace number 10310

Launcher Data

LAUNCH ON wulflinc11 THE 2005-09-23 17:49:33 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=9061 boxname=wulflinc11 idbench=857 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  a586e9246f27773484b1d2b61a85352d  /oldhome/oroussel/tmp/wulflinc11/normalized-mps-v2-13-7-ship04s.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc11/normalized-mps-v2-13-7-ship04s.opb
IDLAUNCH: 9061
/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:        904436 kB
Buffers:          9488 kB
Cached:          95368 kB
SwapCached:          0 kB
Active:          58656 kB
Inactive:        55776 kB
HighTotal:      131008 kB
HighFree:        33376 kB
LowTotal:       903652 kB
LowFree:        871060 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:            10208 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 17:51:21 (client local time) WITH STATUS 0 IN 104.76 SECONDS
stats: 9061 7 104.76 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/10888/stat): 10888 (pb2sat) R 10887 10888 4060 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 22116539 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/10888/statm): 373 2 364 364 0 9 0
[pid=10888] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc11/normalized-mps-v2-13-7-ship04s.opb

[startup+10.002 s]
Raw data (loadavg): 0.85 0.94 0.92 2/55 10888
Raw data (/proc/10888/stat): 10888 (pb2sat) R 10887 10888 4060 0 -1 0 2567 0 0 0 991 7 0 0 25 0 1 0 22116539 9502720 1880 4294967295 134512640 135987407 3221224560 3221221420 135482121 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10888/statm): 2320 1880 364 364 0 1956 0
[pid=10888] vsize: 9280
Current children cumulated CPU time (s) 9.98
Current children cumulated vsize (Kb) 9280

[startup+20.0028 s]
Raw data (loadavg): 0.88 0.94 0.92 2/55 10888
Raw data (/proc/10888/stat): 10888 (pb2sat) R 10887 10888 4060 0 -1 0 21633 0 0 0 1946 50 0 0 25 0 1 0 22116539 70975488 13548 4294967295 134512640 135987407 3221224560 3221173572 134641978 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10888/statm): 17328 13548 364 364 0 16964 0
[pid=10888] vsize: 69312
Current children cumulated CPU time (s) 19.96
Current children cumulated vsize (Kb) 69312

[startup+30.0036 s]
Raw data (loadavg): 0.89 0.94 0.92 2/55 10888
Raw data (/proc/10888/stat): 10888 (pb2sat) R 10887 10888 4060 0 -1 0 51836 0 0 0 2880 115 0 0 25 0 1 0 22116539 168984576 29452 4294967295 134512640 135987407 3221224560 3220842812 135484970 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10888/statm): 41256 29452 364 364 0 40892 0
[pid=10888] vsize: 165024
Current children cumulated CPU time (s) 29.95
Current children cumulated vsize (Kb) 165024

[startup+40.0033 s]
Raw data (loadavg): 0.91 0.94 0.92 2/55 10888
Raw data (/proc/10888/stat): 10888 (pb2sat) R 10887 10888 4060 0 -1 0 92355 0 0 0 3790 201 0 0 25 0 1 0 22116539 285315072 47748 4294967295 134512640 135987407 3221224560 3221221872 134555861 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10888/statm): 69657 47748 364 364 0 69293 0
[pid=10888] vsize: 278628
Current children cumulated CPU time (s) 39.91
Current children cumulated vsize (Kb) 278628

[startup+50.0041 s]
Raw data (loadavg): 0.92 0.94 0.92 2/55 10888
Raw data (/proc/10888/stat): 10888 (pb2sat) R 10887 10888 4060 0 -1 0 107804 0 0 0 4758 234 0 0 25 0 1 0 22116539 323465216 62943 4294967295 134512640 135987407 3221224560 3220842712 134802665 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10888/statm): 78971 62943 364 364 0 78607 0
[pid=10888] vsize: 315884
Current children cumulated CPU time (s) 49.92
Current children cumulated vsize (Kb) 315884

[startup+60.0049 s]
Raw data (loadavg): 0.93 0.94 0.92 2/55 10888
Raw data (/proc/10888/stat): 10888 (pb2sat) R 10887 10888 4060 0 -1 0 142887 0 0 0 5687 300 0 0 25 0 1 0 22116539 505139200 97079 4294967295 134512640 135987407 3221224560 3221186240 134856502 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10888/statm): 123325 97079 364 364 0 122961 0
[pid=10888] vsize: 493300
Current children cumulated CPU time (s) 59.87
Current children cumulated vsize (Kb) 493300

[startup+70.0057 s]
Raw data (loadavg): 0.94 0.94 0.92 2/55 10888
Raw data (/proc/10888/stat): 10888 (pb2sat) R 10887 10888 4060 0 -1 0 188833 0 0 0 6588 399 0 0 25 0 1 0 22116539 590086144 99528 4294967295 134512640 135987407 3221224560 3220951328 134877628 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10888/statm): 144064 99528 364 364 0 143700 0
[pid=10888] vsize: 576256
Current children cumulated CPU time (s) 69.87
Current children cumulated vsize (Kb) 576256

[startup+80.0065 s]
Raw data (loadavg): 0.95 0.95 0.92 2/55 10888
Raw data (/proc/10888/stat): 10888 (pb2sat) R 10887 10888 4060 0 -1 0 203280 0 0 0 7553 434 0 0 25 0 1 0 22116539 594276352 113739 4294967295 134512640 135987407 3221224560 3221091296 134537491 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10888/statm): 145087 113739 364 364 0 144723 0
[pid=10888] vsize: 580348
Current children cumulated CPU time (s) 79.87
Current children cumulated vsize (Kb) 580348

[startup+90.0063 s]
Raw data (loadavg): 0.96 0.95 0.92 2/55 10888
Raw data (/proc/10888/stat): 10888 (pb2sat) R 10887 10888 4060 0 -1 0 219451 0 0 0 8516 471 0 0 25 0 1 0 22116539 598061056 129641 4294967295 134512640 135987407 3221224560 3221023052 134636975 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10888/statm): 146011 129641 364 364 0 145647 0
[pid=10888] vsize: 584044
Current children cumulated CPU time (s) 89.87
Current children cumulated vsize (Kb) 584044

[startup+100.007 s]
Raw data (loadavg): 0.97 0.95 0.92 2/55 10888
Raw data (/proc/10888/stat): 10888 (pb2sat) R 10887 10888 4060 0 -1 0 232905 0 0 0 9488 499 0 0 25 0 1 0 22116539 652582912 142876 4294967295 134512640 135987407 3221224560 3220920480 134866151 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10888/statm): 159322 142876 364 364 0 158958 0
[pid=10888] vsize: 637288
Current children cumulated CPU time (s) 99.87
Current children cumulated vsize (Kb) 637288



Mem limit exceeded: sending SIGTERM then SIGKILL

[startup+104.551 s]
Raw data (loadavg): 0.97 0.95 0.92 1/55 10888
Raw data (/proc/10888/stat): 10888 (pb2sat) T 10887 10888 4060 0 -1 0 242134 0 0 0 9921 519 0 0 25 0 1 0 22116539 943747072 151909 4294967295 134512640 135987407 3221224560 3221066348 135635874 0 0 5 16384 3222434794 0 0 17 1 0 0
Raw data (/proc/10888/statm): 230407 151909 364 364 0 230043 0
[pid=10888] vsize: 921628
Current children cumulated CPU time (s) 104.4
Current children cumulated vsize (Kb) 921628

Sending SIGTERM to -10888
Sleeping 2 seconds
Sending SIGKILL to -10888
One traced child (pid=10888) 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): 106.866
CPU time (s): 104.76
CPU user time (s): 99.2539
CPU system time (s): 5.50616
CPU usage (%): 98.0296
Max. virtual memory (cumulated for all children) (Kb): 921628

Verifier Data

ERROR: no interpretation found !