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-ship08s.opb
MD5SUM686a91b29b124fe4cc498973c082aa6a
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 47740
Biggest coefficient in the objective function 425249996800
Number of bits for the biggest coefficient in the objective function 39
Sum of the numbers in the objective function 109780207303800
Number of bits of the sum of numbers in the objective function 47
Biggest number in a constraint 425249996800
Number of bits of the biggest number in a constraint 39
Biggest sum of numbers in a constraint 109780207303800
Number of bits of the biggest sum of numbers47
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark2.20267
Number of variables47740
Total number of constraints712
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 constraints712
Minimum length of a constraint20
Maximum length of a constraint1220

Trace number 6486

Launcher Data

LAUNCH ON wulflinc23 THE 2005-09-20 07:13:26 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=4375 boxname=wulflinc23 idbench=859 idsolver=4 numberseed=0
MD5SUM SOLVER: 21c3ffd7205c96d5f0784fd273b92938  /oldhome/oroussel/solvers/PBS4
MD5SUM BENCH:  686a91b29b124fe4cc498973c082aa6a  /oldhome/oroussel/tmp/wulflinc23/normalized-mps-v2-13-7-ship08s.opb
REAL COMMAND:  PBS4 /oldhome/oroussel/tmp/wulflinc23/normalized-mps-v2-13-7-ship08s.opb
IDLAUNCH: 4375
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.037
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	: 890.88

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.037
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:        878832 kB
Buffers:         23224 kB
Cached:         104456 kB
SwapCached:        840 kB
Active:          46464 kB
Inactive:        83856 kB
HighTotal:      131008 kB
HighFree:        25788 kB
LowTotal:       903652 kB
LowFree:        853044 kB
SwapTotal:     2097136 kB
SwapFree:      2095788 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5668 kB
Slab:            19688 kB
Committed_AS:    64168 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-20 07:16:31 (client local time) WITH STATUS 20 IN 184.096 SECONDS
stats: 4375 7 184.096 20

Solver Data

c PBS v4 by Bashar Al-Rawi & Fadi Aloul
c Solving /oldhome/oroussel/tmp/wulflinc23/normalized-mps-v2-13-7-ship08s.opb ......
s UNSATISFIABLE
c Done, CPU Time=1.75673

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/29008/stat): 29008 (PBS4) R 29007 29008 5299 0 -1 0 18 0 0 0 0 0 0 0 22 0 1 0 1856658994 978944 2 4294967295 134512640 135450776 3221224560 3221224560 134512960 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/29008/statm): 239 2 232 232 0 7 0
[pid=29008] vsize: 956
open syscall for file /dev/null
open syscall for file /oldhome/oroussel/tmp/wulflinc23/normalized-mps-v2-13-7-ship08s.opb
open syscall for file /oldhome/oroussel/tmp/wulflinc23/normalized-mps-v2-13-7-ship08s.opb

[startup+10.0018 s]
Raw data (loadavg): 0.91 0.95 0.91 2/56 29008
Raw data (/proc/29008/stat): 29008 (PBS4) R 29007 29008 5299 0 -1 0 2682 0 0 0 990 7 0 0 25 0 1 0 1856658994 11546624 2501 4294967295 134512640 135450776 3221224560 3221223072 134599239 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/29008/statm): 2819 2501 232 232 0 2587 0
[pid=29008] vsize: 11276
Current children cumulated CPU time (s) 9.97
Current children cumulated vsize (Kb) 11276

[startup+20.0025 s]
Raw data (loadavg): 0.93 0.95 0.91 2/56 29008
Raw data (/proc/29008/stat): 29008 (PBS4) R 29007 29008 5299 0 -1 0 2682 0 0 0 1991 7 0 0 25 0 1 0 1856658994 11546624 2501 4294967295 134512640 135450776 3221224560 3221223072 134599351 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/29008/statm): 2819 2501 232 232 0 2587 0
[pid=29008] vsize: 11276
Current children cumulated CPU time (s) 19.98
Current children cumulated vsize (Kb) 11276

[startup+30.0061 s]
Raw data (loadavg): 0.94 0.95 0.91 2/56 29008
Raw data (/proc/29008/stat): 29008 (PBS4) R 29007 29008 5299 0 -1 0 2682 0 0 0 2991 7 0 0 25 0 1 0 1856658994 11546624 2501 4294967295 134512640 135450776 3221224560 3221223072 134599343 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/29008/statm): 2819 2501 232 232 0 2587 0
[pid=29008] vsize: 11276
Current children cumulated CPU time (s) 29.98
Current children cumulated vsize (Kb) 11276

[startup+40.0058 s]
Raw data (loadavg): 0.95 0.95 0.91 2/56 29008
Raw data (/proc/29008/stat): 29008 (PBS4) R 29007 29008 5299 0 -1 0 2869 0 0 0 3990 8 0 0 25 0 1 0 1856658994 12312576 2688 4294967295 134512640 135450776 3221224560 3221223072 134600412 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/29008/statm): 3006 2688 232 232 0 2774 0
[pid=29008] vsize: 12024
Current children cumulated CPU time (s) 39.98
Current children cumulated vsize (Kb) 12024

[startup+50.0064 s]
Raw data (loadavg): 0.95 0.95 0.91 2/56 29008
Raw data (/proc/29008/stat): 29008 (PBS4) R 29007 29008 5299 0 -1 0 2869 0 0 0 4991 8 0 0 25 0 1 0 1856658994 12312576 2688 4294967295 134512640 135450776 3221224560 3221223072 134600412 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/29008/statm): 3006 2688 232 232 0 2774 0
[pid=29008] vsize: 12024
Current children cumulated CPU time (s) 49.99
Current children cumulated vsize (Kb) 12024

[startup+60.0061 s]
Raw data (loadavg): 0.96 0.95 0.91 2/56 29008
Raw data (/proc/29008/stat): 29008 (PBS4) R 29007 29008 5299 0 -1 0 2869 0 0 0 5991 8 0 0 25 0 1 0 1856658994 12312576 2688 4294967295 134512640 135450776 3221224560 3221223072 134600412 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/29008/statm): 3006 2688 232 232 0 2774 0
[pid=29008] vsize: 12024
Current children cumulated CPU time (s) 59.99
Current children cumulated vsize (Kb) 12024

[startup+70.0067 s]
Raw data (loadavg): 0.97 0.95 0.91 2/56 29008
Raw data (/proc/29008/stat): 29008 (PBS4) R 29007 29008 5299 0 -1 0 2869 0 0 0 6991 8 0 0 25 0 1 0 1856658994 12312576 2688 4294967295 134512640 135450776 3221224560 3221223072 134600421 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/29008/statm): 3006 2688 232 232 0 2774 0
[pid=29008] vsize: 12024
Current children cumulated CPU time (s) 69.99
Current children cumulated vsize (Kb) 12024

[startup+80.0074 s]
Raw data (loadavg): 0.97 0.95 0.91 2/56 29008
Raw data (/proc/29008/stat): 29008 (PBS4) R 29007 29008 5299 0 -1 0 2869 0 0 0 7991 8 0 0 25 0 1 0 1856658994 12312576 2688 4294967295 134512640 135450776 3221224560 3221223072 134600392 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/29008/statm): 3006 2688 232 232 0 2774 0
[pid=29008] vsize: 12024
Current children cumulated CPU time (s) 79.99
Current children cumulated vsize (Kb) 12024

[startup+90.007 s]
Raw data (loadavg): 0.98 0.95 0.91 2/56 29008
Raw data (/proc/29008/stat): 29008 (PBS4) R 29007 29008 5299 0 -1 0 2869 0 0 0 8991 8 0 0 25 0 1 0 1856658994 12312576 2688 4294967295 134512640 135450776 3221224560 3221223072 134600357 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/29008/statm): 3006 2688 232 232 0 2774 0
[pid=29008] vsize: 12024
Current children cumulated CPU time (s) 89.99
Current children cumulated vsize (Kb) 12024

[startup+100.008 s]
Raw data (loadavg): 0.98 0.95 0.91 2/56 29008
Raw data (/proc/29008/stat): 29008 (PBS4) R 29007 29008 5299 0 -1 0 2869 0 0 0 9992 8 0 0 25 0 1 0 1856658994 12312576 2688 4294967295 134512640 135450776 3221224560 3221223072 134600412 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/29008/statm): 3006 2688 232 232 0 2774 0
[pid=29008] vsize: 12024
Current children cumulated CPU time (s) 100
Current children cumulated vsize (Kb) 12024

[startup+110.008 s]
Raw data (loadavg): 0.98 0.96 0.91 2/56 29008
Raw data (/proc/29008/stat): 29008 (PBS4) R 29007 29008 5299 0 -1 0 2869 0 0 0 10992 8 0 0 25 0 1 0 1856658994 12312576 2688 4294967295 134512640 135450776 3221224560 3221223072 134600412 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/29008/statm): 3006 2688 232 232 0 2774 0
[pid=29008] vsize: 12024
Current children cumulated CPU time (s) 110
Current children cumulated vsize (Kb) 12024

[startup+120.009 s]
Raw data (loadavg): 0.98 0.96 0.91 2/56 29008
Raw data (/proc/29008/stat): 29008 (PBS4) R 29007 29008 5299 0 -1 0 2869 0 0 0 11992 8 0 0 25 0 1 0 1856658994 12312576 2688 4294967295 134512640 135450776 3221224560 3221223072 134600412 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/29008/statm): 3006 2688 232 232 0 2774 0
[pid=29008] vsize: 12024
Current children cumulated CPU time (s) 120
Current children cumulated vsize (Kb) 12024

[startup+130.01 s]
Raw data (loadavg): 0.99 0.96 0.91 2/56 29008
Raw data (/proc/29008/stat): 29008 (PBS4) R 29007 29008 5299 0 -1 0 2869 0 0 0 12992 8 0 0 25 0 1 0 1856658994 12312576 2688 4294967295 134512640 135450776 3221224560 3221223072 134600401 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/29008/statm): 3006 2688 232 232 0 2774 0
[pid=29008] vsize: 12024
Current children cumulated CPU time (s) 130
Current children cumulated vsize (Kb) 12024

[startup+140.009 s]
Raw data (loadavg): 0.99 0.96 0.91 2/56 29008
Raw data (/proc/29008/stat): 29008 (PBS4) R 29007 29008 5299 0 -1 0 2869 0 0 0 13992 8 0 0 25 0 1 0 1856658994 12312576 2688 4294967295 134512640 135450776 3221224560 3221223072 134600412 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/29008/statm): 3006 2688 232 232 0 2774 0
[pid=29008] vsize: 12024
Current children cumulated CPU time (s) 140
Current children cumulated vsize (Kb) 12024

[startup+150.01 s]
Raw data (loadavg): 0.99 0.96 0.91 2/56 29008
Raw data (/proc/29008/stat): 29008 (PBS4) R 29007 29008 5299 0 -1 0 2869 0 0 0 14992 8 0 0 25 0 1 0 1856658994 12312576 2688 4294967295 134512640 135450776 3221224560 3221223072 134600441 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/29008/statm): 3006 2688 232 232 0 2774 0
[pid=29008] vsize: 12024
Current children cumulated CPU time (s) 150
Current children cumulated vsize (Kb) 12024

[startup+160.01 s]
Raw data (loadavg): 0.99 0.96 0.91 2/56 29008
Raw data (/proc/29008/stat): 29008 (PBS4) R 29007 29008 5299 0 -1 0 2869 0 0 0 15993 8 0 0 25 0 1 0 1856658994 12312576 2688 4294967295 134512640 135450776 3221224560 3221223072 134600415 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/29008/statm): 3006 2688 232 232 0 2774 0
[pid=29008] vsize: 12024
Current children cumulated CPU time (s) 160.01
Current children cumulated vsize (Kb) 12024

[startup+170.01 s]
Raw data (loadavg): 0.99 0.96 0.91 2/56 29008
Raw data (/proc/29008/stat): 29008 (PBS4) R 29007 29008 5299 0 -1 0 2869 0 0 0 16993 8 0 0 25 0 1 0 1856658994 12312576 2688 4294967295 134512640 135450776 3221224560 3221223072 134600419 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/29008/statm): 3006 2688 232 232 0 2774 0
[pid=29008] vsize: 12024
Current children cumulated CPU time (s) 170.01
Current children cumulated vsize (Kb) 12024

[startup+180.011 s]
Raw data (loadavg): 0.99 0.96 0.91 2/56 29008
Raw data (/proc/29008/stat): 29008 (PBS4) R 29007 29008 5299 0 -1 0 6603 0 0 0 17982 17 0 0 25 0 1 0 1856658994 18268160 4178 4294967295 134512640 135450776 3221224560 3221223072 134599243 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/29008/statm): 4460 4178 232 232 0 4228 0
[pid=29008] vsize: 17840
Current children cumulated CPU time (s) 179.99
Current children cumulated vsize (Kb) 17840
One traced child (pid=29008) exited with status: 20
All traced children have exited ! Game is over.

Child status: 20
Real time (s): 184.117
CPU time (s): 184.096
CPU user time (s): 183.867
CPU system time (s): 0.228965
CPU usage (%): 99.9884
Max. virtual memory (cumulated for all children) (Kb): 17840

Verifier Data

ERROR: no interpretation found !