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/plato.asu.edu/pub/fctp/normalized-mps-v2-13-7-bk4x3.opb
MD5SUMc2339539ffa69702e62053614fe34ce1
Bench Categoryoptimization, medium integers (OPTMEDINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 44800
Optimality of the best value was proved YES
Number of terms in the objective function 252
Biggest coefficient in the objective function 2621440
Number of bits for the biggest coefficient in the objective function 22
Sum of the numbers in the objective function 35682270
Number of bits of the sum of numbers in the objective function 26
Biggest number in a constraint 2621440
Number of bits of the biggest number in a constraint 22
Biggest sum of numbers in a constraint 35682270
Number of bits of the biggest sum of numbers26
Best result obtained on this benchmarkOPTIMUM FOUND
Best CPU time to get the best result obtained on this benchmark15.3857
Number of variables252
Total number of constraints19
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 constraints19
Minimum length of a constraint21
Maximum length of a constraint80

Trace number 8577

Launcher Data

LAUNCH ON wulflinc27 THE 2005-09-20 17:25:20 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=5749 boxname=wulflinc27 idbench=1061 idsolver=5 numberseed=0
MD5SUM SOLVER: 104a539e9cf344a86ca96d2c957e7d7f  /oldhome/oroussel/solvers/Pueblo
MD5SUM BENCH:  c2339539ffa69702e62053614fe34ce1  /oldhome/oroussel/tmp/wulflinc27/normalized-mps-v2-13-7-bk4x3.opb
REAL COMMAND:  Pueblo
IDLAUNCH: 5749
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.169
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	: 3
cpu MHz		: 451.169
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:        806692 kB
Buffers:         34132 kB
Cached:         164212 kB
SwapCached:        692 kB
Active:          73024 kB
Inactive:       127900 kB
HighTotal:      131008 kB
HighFree:         8008 kB
LowTotal:       903652 kB
LowFree:        798684 kB
SwapTotal:     2097892 kB
SwapFree:      2096628 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5752 kB
Slab:            21388 kB
Committed_AS:    64172 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-20 17:26:54 (client local time) WITH STATUS 30 IN 86.0619 SECONDS
stats: 5749 0 86.0619 30

Solver Data

c Pueblo version 1.3 (July 2005)
c Developed @ University of Michigan, Ann Arbor, MI
c  by Hossein Sheini
c starting to Solve
c #variables read: 252 - #constraints read: 27
c optimum objective found = 44800
c total time              : 86.05 s
s OPTIMUM FOUND
v -X0_bit_7 -X0_bit_6 -X0_bit_5 -X0_bit_4 -X0_bit_3 -X0_bit_2 -X0_bit_1 -X0_bit0 -X0_bit1 -X0_bit2 -X0_bit3 -X0_bit4 -X0_bit5 -X0_bit6 -X0_bit7 -X0_bit8 -X0_bit9 -X0_bit10 -X0_bit11 -X0_bit12 -X1_bit_7 -X1_bit_6 -X1_bit_5 -X1_bit_4 -X1_bit_3 -X1_bit_2 -X1_bit_1 -X1_bit0 -X1_bit1 -X1_bit2 -X1_bit3 -X1_bit4 -X1_bit5 -X1_bit6 -X1_bit7 -X1_bit8 -X1_bit9 -X1_bit10 -X1_bit11 -X1_bit12 -X2_bit_7 -X2_bit_6 -X2_bit_5 -X2_bit_4 -X2_bit_3 -X2_bit_2 -X2_bit_1 -X2_bit0 X2_bit1 -X2_bit2 X2_bit3 -X2_bit4 -X2_bit5 -X2_bit6 -X2_bit7 -X2_bit8 -X2_bit9 -X2_bit10 -X2_bit11 -X2_bit12 -X3_bit_7 -X3_bit_6 -X3_bit_5 -X3_bit_4 -X3_bit_3 -X3_bit_2 -X3_bit_1 -X3_bit0 -X3_bit1 -X3_bit2 -X3_bit3 -X3_bit4 -X3_bit5 -X3_bit6 -X3_bit7 -X3_bit8 -X3_bit9 -X3_bit10 -X3_bit11 -X3_bit12 -X4_bit_7 -X4_bit_6 -X4_bit_5 -X4_bit_4 -X4_bit_3 -X4_bit_2 -X4_bit_1 -X4_bit0 X4_bit1 X4_bit2 X4_bit3 X4_bit4 -X4_bit5 -X4_bit6 -X4_bit7 -X4_bit8 -X4_bit9 -X4_bit10 -X4_bit11 -X4_bit12 -X5_bit_7 -X5_bit_6 -X5_bit_5 -X5_bit_4 -X5_bit_3 -X5_bit_2 -X5_bit_1 -X5_bit0 -X5_bit1 -X5_bit2 -X5_bit3 -X5_bit4 -X5_bit5 -X5_bit6 -X5_bit7 -X5_bit8 -X5_bit9 -X5_bit10 -X5_bit11 -X5_bit12 -X6_bit_7 -X6_bit_6 -X6_bit_5 -X6_bit_4 -X6_bit_3 -X6_bit_2 -X6_bit_1 -X6_bit0 -X6_bit1 X6_bit2 -X6_bit3 X6_bit4 -X6_bit5 -X6_bit6 -X6_bit7 -X6_bit8 -X6_bit9 -X6_bit10 -X6_bit11 -X6_bit12 -X7_bit_7 -X7_bit_6 -X7_bit_5 -X7_bit_4 -X7_bit_3 -X7_bit_2 -X7_bit_1 -X7_bit0 -X7_bit1 X7_bit2 -X7_bit3 X7_bit4 -X7_bit5 -X7_bit6 -X7_bit7 -X7_bit8 -X7_bit9 -X7_bit10 -X7_bit11 -X7_bit12 -X8_bit_7 -X8_bit_6 -X8_bit_5 -X8_bit_4 -X8_bit_3 -X8_bit_2 -X8_bit_1 -X8_bit0 -X8_bit1 -X8_bit2 -X8_bit3 -X8_bit4 -X8_bit5 -X8_bit6 -X8_bit7 -X8_bit8 -X8_bit9 -X8_bit10 -X8_bit11 -X8_bit12 -X9_bit_7 -X9_bit_6 -X9_bit_5 -X9_bit_4 -X9_bit_3 -X9_bit_2 -X9_bit_1 -X9_bit0 -X9_bit1 -X9_bit2 -X9_bit3 -X9_bit4 -X9_bit5 -X9_bit6 -X9_bit7 -X9_bit8 -X9_bit9 -X9_bit10 -X9_bit11 -X9_bit12 -X10_bit_7 -X10_bit_6 -X10_bit_5 -X10_bit_4 -X10_bit_3 -X10_bit_2 -X10_bit_1 -X10_bit0 -X10_bit1 -X10_bit2 -X10_bit3 -X10_bit4 -X10_bit5 -X10_bit6 -X10_bit7 -X10_bit8 -X10_bit9 -X10_bit10 -X10_bit11 -X10_bit12 -X11_bit_7 -X11_bit_6 -X11_bit_5 -X11_bit_4 -X11_bit_3 -X11_bit_2 -X11_bit_1 -X11_bit0 -X11_bit1 X11_bit2 -X11_bit3 X11_bit4 -X11_bit5 -X11_bit6 -X11_bit7 -X11_bit8 -X11_bit9 -X11_bit10 -X11_bit11 -X11_bit12 -Y0_bit0 -Y1_bit0 Y2_bit0 -Y3_bit0 Y4_bit0 -Y5_bit0 Y6_bit0 Y7_bit0 -Y8_bit0 -Y9_bit0 -Y10_bit0 Y11_bit0

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/10992/stat): 10992 (Pueblo) R 10991 10992 28974 0 -1 0 19 0 0 0 0 0 0 0 22 0 1 0 1860304349 167936 3 4294967295 134512640 134578447 3221224624 3221224624 1073744960 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/10992/statm): 41 3 40 18 0 23 0
[pid=10992] vsize: 164
open syscall for file /etc/ld.so.preload
open syscall for file tls/i686/mmx/libstdc++.so.5
open syscall for file tls/i686/libstdc++.so.5
open syscall for file tls/mmx/libstdc++.so.5
open syscall for file tls/libstdc++.so.5
open syscall for file i686/mmx/libstdc++.so.5
open syscall for file i686/libstdc++.so.5
open syscall for file mmx/libstdc++.so.5
open syscall for file libstdc++.so.5
open syscall for file /oldhome/oroussel/lib/tls/i686/mmx/libstdc++.so.5
open syscall for file /oldhome/oroussel/lib/tls/i686/libstdc++.so.5
open syscall for file /oldhome/oroussel/lib/tls/mmx/libstdc++.so.5
open syscall for file /oldhome/oroussel/lib/tls/libstdc++.so.5
open syscall for file /oldhome/oroussel/lib/i686/mmx/libstdc++.so.5
open syscall for file /oldhome/oroussel/lib/i686/libstdc++.so.5
open syscall for file /oldhome/oroussel/lib/mmx/libstdc++.so.5
open syscall for file /oldhome/oroussel/lib/libstdc++.so.5
open syscall for file /etc/ld.so.cache
open syscall for file /usr/lib/libstdc++.so.5
open syscall for file tls/i686/mmx/libm.so.6
open syscall for file tls/i686/libm.so.6
open syscall for file tls/mmx/libm.so.6
open syscall for file tls/libm.so.6
open syscall for file i686/mmx/libm.so.6
open syscall for file i686/libm.so.6
open syscall for file mmx/libm.so.6
open syscall for file libm.so.6
open syscall for file /oldhome/oroussel/lib/libm.so.6
open syscall for file /lib/tls/libm.so.6
open syscall for file tls/i686/mmx/libgcc_s.so.1
open syscall for file tls/i686/libgcc_s.so.1
open syscall for file tls/mmx/libgcc_s.so.1
open syscall for file tls/libgcc_s.so.1
open syscall for file i686/mmx/libgcc_s.so.1
open syscall for file i686/libgcc_s.so.1
open syscall for file mmx/libgcc_s.so.1
open syscall for file libgcc_s.so.1
open syscall for file /oldhome/oroussel/lib/libgcc_s.so.1
open syscall for file /lib/libgcc_s.so.1
open syscall for file tls/i686/mmx/libc.so.6
open syscall for file tls/i686/libc.so.6
open syscall for file tls/mmx/libc.so.6
open syscall for file tls/libc.so.6
open syscall for file i686/mmx/libc.so.6
open syscall for file i686/libc.so.6
open syscall for file mmx/libc.so.6
open syscall for file libc.so.6
open syscall for file /oldhome/oroussel/lib/libc.so.6
open syscall for file /lib/tls/libc.so.6

[startup+10.0039 s]
Raw data (loadavg): 0.93 0.96 0.91 1/56 10992
Raw data (/proc/10992/stat): 10992 (Pueblo) T 10991 10992 28974 0 -1 0 320 0 0 0 875 42 0 0 25 0 1 0 1860304349 2904064 286 4294967295 134512640 134578447 3221224624 3221223656 1075514893 0 0 5 0 3222434794 0 0 17 1 0 0
Raw data (/proc/10992/statm): 709 286 566 18 0 691 0
[pid=10992] vsize: 2836
Current children cumulated CPU time (s) 9.17
Current children cumulated vsize (Kb) 2836

[startup+20.0048 s]
Raw data (loadavg): 0.94 0.96 0.91 1/56 10992
Raw data (/proc/10992/stat): 10992 (Pueblo) T 10991 10992 28974 0 -1 0 326 0 0 0 1742 87 0 0 25 0 1 0 1860304349 2904064 292 4294967295 134512640 134578447 3221224624 3221223656 1075514893 0 0 5 0 3222434794 0 0 17 1 0 0
Raw data (/proc/10992/statm): 709 292 566 18 0 691 0
[pid=10992] vsize: 2836
Current children cumulated CPU time (s) 18.29
Current children cumulated vsize (Kb) 2836

[startup+30.0055 s]
Raw data (loadavg): 0.95 0.96 0.91 1/56 10992
Raw data (/proc/10992/stat): 10992 (Pueblo) T 10991 10992 28974 0 -1 0 330 0 0 0 2598 138 0 0 24 0 1 0 1860304349 2904064 296 4294967295 134512640 134578447 3221224624 3221223656 1075514893 0 0 5 0 3222434794 0 0 17 1 0 0
Raw data (/proc/10992/statm): 709 296 566 18 0 691 0
[pid=10992] vsize: 2836
Current children cumulated CPU time (s) 27.36
Current children cumulated vsize (Kb) 2836

[startup+40.0053 s]
Raw data (loadavg): 0.96 0.96 0.91 1/56 10992
Raw data (/proc/10992/stat): 10992 (Pueblo) T 10991 10992 28974 0 -1 0 338 0 0 0 3461 186 0 0 25 0 1 0 1860304349 2904064 304 4294967295 134512640 134578447 3221224624 3221223656 1075514893 0 0 5 0 3222434794 0 0 17 1 0 0
Raw data (/proc/10992/statm): 709 304 566 18 0 691 0
[pid=10992] vsize: 2836
Current children cumulated CPU time (s) 36.47
Current children cumulated vsize (Kb) 2836

[startup+50.0061 s]
Raw data (loadavg): 0.96 0.96 0.91 2/56 10992
Raw data (/proc/10992/stat): 10992 (Pueblo) R 10991 10992 28974 0 -1 0 338 0 0 0 4308 239 0 0 25 0 1 0 1860304349 2904064 304 4294967295 134512640 134578447 3221224624 3221223504 134527535 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/10992/statm): 709 304 566 18 0 691 0
[pid=10992] vsize: 2836
Current children cumulated CPU time (s) 45.47
Current children cumulated vsize (Kb) 2836

[startup+60.006 s]
Raw data (loadavg): 0.97 0.96 0.91 1/56 10992
Raw data (/proc/10992/stat): 10992 (Pueblo) T 10991 10992 28974 0 -1 0 341 0 0 0 5177 285 0 0 25 0 1 0 1860304349 2904064 307 4294967295 134512640 134578447 3221224624 3221223656 1075514893 0 0 5 0 3222434794 0 0 17 1 0 0
Raw data (/proc/10992/statm): 709 307 566 18 0 691 0
[pid=10992] vsize: 2836
Current children cumulated CPU time (s) 54.62
Current children cumulated vsize (Kb) 2836

[startup+70.0068 s]
Raw data (loadavg): 0.97 0.96 0.91 1/56 10992
Raw data (/proc/10992/stat): 10992 (Pueblo) T 10991 10992 28974 0 -1 0 344 0 0 0 6055 325 0 0 25 0 1 0 1860304349 2904064 310 4294967295 134512640 134578447 3221224624 3221223656 1075514893 0 0 5 0 3222434794 0 0 17 1 0 0
Raw data (/proc/10992/statm): 709 310 566 18 0 691 0
[pid=10992] vsize: 2836
Current children cumulated CPU time (s) 63.8
Current children cumulated vsize (Kb) 2836

[startup+80.0076 s]
Raw data (loadavg): 0.98 0.97 0.91 2/56 10992
Raw data (/proc/10992/stat): 10992 (Pueblo) R 10991 10992 28974 0 -1 0 344 0 0 0 6954 360 0 0 25 0 1 0 1860304349 2904064 310 4294967295 134512640 134578447 3221224624 3221223520 134519731 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/10992/statm): 709 310 566 18 0 691 0
[pid=10992] vsize: 2836
Current children cumulated CPU time (s) 73.14
Current children cumulated vsize (Kb) 2836

[startup+90.0074 s]
Raw data (loadavg): 0.98 0.97 0.91 2/56 10992
Raw data (/proc/10992/stat): 10992 (Pueblo) R 10991 10992 28974 0 -1 0 347 0 0 0 7820 406 0 0 24 0 1 0 1860304349 2904064 313 4294967295 134512640 134578447 3221224624 3221223488 134528022 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/10992/statm): 709 313 566 18 0 691 0
[pid=10992] vsize: 2836
Current children cumulated CPU time (s) 82.26
Current children cumulated vsize (Kb) 2836
One traced child (pid=10992) exited with status: 30
All traced children have exited ! Game is over.

Child status: 30
Real time (s): 94.2172
CPU time (s): 86.0619
CPU user time (s): 81.7596
CPU system time (s): 4.30235
CPU usage (%): 91.3441
Max. virtual memory (cumulated for all children) (Kb): 2836

Verifier Data

Verifier:	OK	44800