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/www.csit.fsu.edu/~burkardt/datasets/mps/normalized-mps-v2-13-7-maros.opb
MD5SUM1ae5b04b2d0e1f5ab82e29e98b8350c0
Bench Categoryoptimization, medium integers (OPTMEDINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 43097
Optimality of the best value was proved YES
Number of terms in the objective function 64
Biggest coefficient in the objective function 4718592
Number of bits for the biggest coefficient in the objective function 23
Sum of the numbers in the objective function 14745570
Number of bits of the sum of numbers in the objective function 24
Biggest number in a constraint 4718592
Number of bits of the biggest number in a constraint 23
Biggest sum of numbers in a constraint 14745570
Number of bits of the biggest sum of numbers24
Best result obtained on this benchmarkOPTIMUM FOUND
Best CPU time to get the best result obtained on this benchmark23.3694
Number of variables64
Total number of constraints6
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 constraints6
Minimum length of a constraint12
Maximum length of a constraint64

Trace number 8676

Launcher Data

LAUNCH ON wulflinc31 THE 2005-09-20 17:51:16 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=5859 boxname=wulflinc31 idbench=1171 idsolver=5 numberseed=0
MD5SUM SOLVER: 104a539e9cf344a86ca96d2c957e7d7f  /oldhome/oroussel/solvers/Pueblo
MD5SUM BENCH:  1ae5b04b2d0e1f5ab82e29e98b8350c0  /oldhome/oroussel/tmp/wulflinc31/normalized-mps-v2-13-7-maros.opb
REAL COMMAND:  Pueblo
IDLAUNCH: 5859
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.153
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		: 451.153
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:        819064 kB
Buffers:         33092 kB
Cached:         154176 kB
SwapCached:       1160 kB
Active:          82100 kB
Inactive:       107864 kB
HighTotal:      131008 kB
HighFree:         1316 kB
LowTotal:       903652 kB
LowFree:        817748 kB
SwapTotal:     2097892 kB
SwapFree:      2096252 kB
Dirty:              32 kB
Writeback:           0 kB
Mapped:           5700 kB
Slab:            19952 kB
Committed_AS:    64380 kB
PageTables:        340 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-20 17:52:25 (client local time) WITH STATUS 30 IN 62.4975 SECONDS
stats: 5859 0 62.4975 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: 64 - #constraints read: 7
c optimum objective found = 43097
c total time              : 62.49 s
s OPTIMUM FOUND
v -VOL1_bit_7 -VOL1_bit_6 VOL1_bit_5 VOL1_bit_4 -VOL1_bit_3 VOL1_bit_2 -VOL1_bit_1 VOL1_bit0 VOL1_bit1 -VOL1_bit2 -VOL1_bit3 -VOL1_bit4 -VOL1_bit5 -VOL1_bit6 -VOL1_bit7 -VOL1_bit8 -VOL1_bit9 -VOL1_bit10 -VOL1_bit11 -VOL1_bit12 VOL2_bit_7 -VOL2_bit_6 -VOL2_bit_5 VOL2_bit_4 -VOL2_bit_3 VOL2_bit_2 -VOL2_bit_1 VOL2_bit0 -VOL2_bit1 VOL2_bit2 VOL2_bit3 -VOL2_bit4 -VOL2_bit5 -VOL2_bit6 -VOL2_bit7 -VOL2_bit8 -VOL2_bit9 -VOL2_bit10 -VOL2_bit11 -VOL2_bit12 -VOL3_bit_7 -VOL3_bit_6 -VOL3_bit_5 -VOL3_bit_4 -VOL3_bit_3 -VOL3_bit_2 -VOL3_bit_1 -VOL3_bit0 VOL3_bit1 VOL3_bit2 VOL3_bit3 VOL3_bit4 -VOL4_bit_7 -VOL4_bit_6 -VOL4_bit_5 -VOL4_bit_4 -VOL4_bit_3 -VOL4_bit_2 -VOL4_bit_1 -VOL4_bit0 -VOL4_bit1 -VOL4_bit2 -VOL4_bit3 -VOL4_bit4 

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/15633/stat): 15633 (Pueblo) R 15632 15633 9102 0 -1 0 19 0 0 0 0 0 0 0 23 0 1 0 1860435467 167936 3 4294967295 134512640 134578447 3221224624 3221224624 1073744960 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/15633/statm): 41 3 40 18 0 23 0
[pid=15633] 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+10.004 s]
Raw data (loadavg): 0.66 0.86 0.88 2/57 15635
Raw data (/proc/15633/stat): 15633 (Pueblo) R 15632 15633 9102 0 -1 0 267 0 0 0 998 1 0 0 25 0 1 0 1860435467 2637824 233 4294967295 134512640 134578447 3221224624 3221223504 134527773 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/15633/statm): 644 233 566 18 0 626 0
[pid=15633] vsize: 2576
Current children cumulated CPU time (s) 9.99
Current children cumulated vsize (Kb) 2576

[startup+20.005 s]
Raw data (loadavg): 0.71 0.86 0.88 2/57 15635
Raw data (/proc/15633/stat): 15633 (Pueblo) R 15632 15633 9102 0 -1 0 267 0 0 0 1998 1 0 0 25 0 1 0 1860435467 2637824 233 4294967295 134512640 134578447 3221224624 3221223584 134559074 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/15633/statm): 644 233 566 18 0 626 0
[pid=15633] vsize: 2576
Current children cumulated CPU time (s) 19.99
Current children cumulated vsize (Kb) 2576

[startup+30.0059 s]
Raw data (loadavg): 0.75 0.87 0.88 2/57 15635
Raw data (/proc/15633/stat): 15633 (Pueblo) R 15632 15633 9102 0 -1 0 267 0 0 0 2998 1 0 0 25 0 1 0 1860435467 2637824 233 4294967295 134512640 134578447 3221224624 3221223488 134517613 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/15633/statm): 644 233 566 18 0 626 0
[pid=15633] vsize: 2576
Current children cumulated CPU time (s) 29.99
Current children cumulated vsize (Kb) 2576

[startup+40.0058 s]
Raw data (loadavg): 0.79 0.87 0.88 2/57 15635
Raw data (/proc/15633/stat): 15633 (Pueblo) R 15632 15633 9102 0 -1 0 271 0 0 0 3857 48 0 0 21 0 1 0 1860435467 2637824 237 4294967295 134512640 134578447 3221224624 3221223308 1075288538 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/15633/statm): 644 237 566 18 0 626 0
[pid=15633] vsize: 2576
Current children cumulated CPU time (s) 39.05
Current children cumulated vsize (Kb) 2576

[startup+50.0068 s]
Raw data (loadavg): 0.82 0.87 0.88 2/57 15635
Raw data (/proc/15633/stat): 15633 (Pueblo) R 15632 15633 9102 0 -1 0 290 0 0 0 4597 134 0 0 20 0 1 0 1860435467 2772992 256 4294967295 134512640 134578447 3221224624 3221223504 134531684 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/15633/statm): 677 256 566 18 0 659 0
[pid=15633] vsize: 2708
Current children cumulated CPU time (s) 47.31
Current children cumulated vsize (Kb) 2708

[startup+60.0077 s]
Raw data (loadavg): 0.85 0.88 0.88 1/57 15635
Raw data (/proc/15633/stat): 15633 (Pueblo) T 15632 15633 9102 0 -1 0 290 0 0 0 5313 226 0 0 18 0 1 0 1860435467 2772992 256 4294967295 134512640 134578447 3221224624 3221223656 1075514893 0 0 5 0 3222434794 0 0 17 1 0 0
Raw data (/proc/15633/statm): 677 256 566 18 0 659 0
[pid=15633] vsize: 2708
Current children cumulated CPU time (s) 55.39
Current children cumulated vsize (Kb) 2708
One traced child (pid=15633) exited with status: 30
All traced children have exited ! Game is over.

Child status: 30
Real time (s): 68.887
CPU time (s): 62.4975
CPU user time (s): 59.384
CPU system time (s): 3.11353
CPU usage (%): 90.7247
Max. virtual memory (cumulated for all children) (Kb): 2708

Verifier Data

Verifier:	OK	43097