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/MIPLIB/miplib/normalized-mps-v2-20-10-enigma.opb
MD5SUM69bc407892007f468f206122d0d17aba
Bench Categoryoptimization, medium integers (OPTMEDINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 0
Optimality of the best value was proved YES
Number of terms in the objective function 9
Biggest coefficient in the objective function 9
Number of bits for the biggest coefficient in the objective function 4
Sum of the numbers in the objective function 45
Number of bits of the sum of numbers in the objective function 6
Biggest number in a constraint 900207
Number of bits of the biggest number in a constraint 20
Biggest sum of numbers in a constraint 9508275
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 benchmark2.17967
Number of variables100
Total number of constraints121
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)120
Number of constraints which are nor clauses,nor cardinality constraints1
Minimum length of a constraint1
Maximum length of a constraint90

Trace number 517

Launcher Data

LAUNCH ON wulflinc24 THE 2005-09-18 11:04:29 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=508 boxname=wulflinc24 idbench=508 idsolver=1 numberseed=0
MD5SUM SOLVER: 38f99674050b34630888bf623b924b59  /oldhome/oroussel/solvers/bsolo
MD5SUM BENCH:  69bc407892007f468f206122d0d17aba  /oldhome/oroussel/tmp/wulflinc24/normalized-mps-v2-20-10-enigma.opb
REAL COMMAND:  bsolo /oldhome/oroussel/tmp/wulflinc24/normalized-mps-v2-20-10-enigma.opb
IDLAUNCH: 508
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.080
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		: 451.080
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:        944924 kB
Buffers:         34212 kB
Cached:          28080 kB
SwapCached:        744 kB
Active:          53320 kB
Inactive:        11580 kB
HighTotal:      131008 kB
HighFree:        99344 kB
LowTotal:       903652 kB
LowFree:        845580 kB
SwapTotal:     2097892 kB
SwapFree:      2096644 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5736 kB
Slab:            19180 kB
Committed_AS:    64168 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-18 11:05:15 (client local time) WITH STATUS 30 IN 44.4602 SECONDS
stats: 508 0 44.4602 30

Solver Data

c INFO: OSL Context initialized.
c Initial problem consists of 100 variables and 42 constraints.
c No problem reductions applied in OPT. instance.
c	preprocess terminated. Elapsed time: 0.089
c After prepocess the problem consists of 100 variables and 42 constraints.
c Initial Lower Bound: 0
c Restart #1 #Var: 100 #Dec: 221 LB: 0 @ 0.19
c Restart #2 #Var: 100 #Dec: 640 LB: 0 @ 0.405
c Restart #3 #Var: 100 #Dec: 1251 LB: 0 @ 0.789
c Restart #4 #Var: 100 #Dec: 2059 LB: 0 @ 1.431
c Restart #5 #Var: 100 #Dec: 3066 LB: 0 @ 2.305
c Restart #6 #Var: 100 #Dec: 4271 LB: 0 @ 3.546
c Restart #7 #Var: 100 #Dec: 5677 LB: 0 @ 5.217
c Restart #8 #Var: 100 #Dec: 7282 LB: 0 @ 7.127
c Restart #9 #Var: 100 #Dec: 9086 LB: 0 @ 9.568
c Restart #10 #Var: 100 #Dec: 11090 LB: 0 @ 12.506
c Restart #11 #Var: 100 #Dec: 13296 LB: 0 @ 14.993
c Restart #12 #Var: 100 #Dec: 15704 LB: 0 @ 19.284
c Restart #13 #Var: 99 #Dec: 18336 LB: 0 @ 25.104
c Restart #14 #Var: 99 #Dec: 21140 LB: 0 @ 32.385
c Restart #15 #Var: 99 #Dec: 24151 LB: 0 @ 42.557
c NEW SOLUTION FOUND: 0 @ 44.36 @ #Dec. 24793
s OPTIMUM FOUND
v -A1_bit0 -A2_bit0 -A3_bit0 -A4_bit0 -A5_bit0 -A6_bit0 -A7_bit0 -A8_bit0 -A9_bit0 -B1_bit0 -B2_bit0 -B3_bit0 -B4_bit0 -B5_bit0 -B6_bit0 -B7_bit0 B8_bit0 -B9_bit0 -C1_bit0 -C2_bit0 -C3_bit0 -C4_bit0 C5_bit0 -C6_bit0 -C7_bit0 -C8_bit0 -C9_bit0 -D1_bit0 -D2_bit0 -D3_bit0 -D4_bit0 -D5_bit0 D6_bit0 -D7_bit0 -D8_bit0 -D9_bit0 -E1_bit0 -E2_bit0 -E3_bit0 E4_bit0 -E5_bit0 -E6_bit0 -E7_bit0 -E8_bit0 -E9_bit0 -F1_bit0 -F2_bit0 -F3_bit0 -F4_bit0 -F5_bit0 -F6_bit0 -F7_bit0 -F8_bit0 F9_bit0 -G1_bit0 G2_bit0 -G3_bit0 -G4_bit0 -G5_bit0 -G6_bit0 -G7_bit0 -G8_bit0 -G9_bit0 -H1_bit0 -H2_bit0 -H3_bit0 -H4_bit0 -H5_bit0 -H6_bit0 H7_bit0 -H8_bit0 -H9_bit0 I1_bit0 -I2_bit0 -I3_bit0 -I4_bit0 -I5_bit0 -I6_bit0 -I7_bit0 -I8_bit0 -I9_bit0 -L1_bit0 -L2_bit0 L3_bit0 -L4_bit0 -L5_bit0 -L6_bit0 -L7_bit0 -L8_bit0 -L9_bit0 A0_bit0 -B0_bit0 -C0_bit0 -D0_bit0 -E0_bit0 -F0_bit0 -G0_bit0 -H0_bit0 -I0_bit0 -L0_bit0 
c Cost: 0
c Exit Code: 30
c Total time: 44.422 s

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/22601/stat): 22601 (bsolo) R 22600 22601 20728 0 -1 0 19 0 0 0 0 0 0 0 23 0 1 0 1840752885 438272 3 4294967295 134512640 134736556 3221224560 3221224560 1073744960 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/22601/statm): 107 3 90 68 0 39 0
[pid=22601] vsize: 428
open syscall for file /etc/ld.so.preload
open syscall for file tls/i686/mmx/libosl.so
open syscall for file tls/i686/libosl.so
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open syscall for file libosl.so
open syscall for file /oldhome/oroussel/lib/tls/i686/mmx/libosl.so
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open syscall for file /oldhome/oroussel/lib/libm.so.6
open syscall for file /lib/tls/libm.so.6
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open syscall for file /oldhome/oroussel/lib/libpthread.so.0
open syscall for file /lib/tls/libpthread.so.0
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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
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open syscall for file /oldhome/oroussel/tmp/wulflinc24/normalized-mps-v2-20-10-enigma.opb

[startup+10.003 s]
Raw data (loadavg): 0.93 0.98 0.92 2/56 22601
Raw data (/proc/22601/stat): 22601 (bsolo) R 22600 22601 20728 0 -1 0 6912 0 0 0 924 35 0 0 25 0 1 0 1840752885 31375360 6823 4294967295 134512640 134736556 3221224560 3221223172 134537369 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/22601/statm): 7660 6823 1116 68 0 7592 0
[pid=22601] vsize: 30640
Current children cumulated CPU time (s) 9.59
Current children cumulated vsize (Kb) 30640

[startup+20.0038 s]
Raw data (loadavg): 0.94 0.98 0.92 2/56 22601
Raw data (/proc/22601/stat): 22601 (bsolo) R 22600 22601 20728 0 -1 0 11150 0 0 0 1873 61 0 0 25 0 1 0 1840752885 48672768 11061 4294967295 134512640 134736556 3221224560 3221223120 134551024 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/22601/statm): 11883 11061 1116 68 0 11815 0
[pid=22601] vsize: 47532
Current children cumulated CPU time (s) 19.34
Current children cumulated vsize (Kb) 47532

[startup+30.0045 s]
Raw data (loadavg): 0.95 0.98 0.92 2/56 22601
Raw data (/proc/22601/stat): 22601 (bsolo) R 22600 22601 20728 0 -1 0 13722 0 0 0 2840 77 0 0 25 0 1 0 1840752885 59219968 13633 4294967295 134512640 134736556 3221224560 3221222964 134717263 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/22601/statm): 14458 13633 1116 68 0 14390 0
[pid=22601] vsize: 57832
Current children cumulated CPU time (s) 29.17
Current children cumulated vsize (Kb) 57832

[startup+40.0052 s]
Raw data (loadavg): 0.96 0.98 0.92 2/56 22601
Raw data (/proc/22601/stat): 22601 (bsolo) R 22600 22601 20728 0 -1 0 15237 0 0 0 3816 89 0 0 25 0 1 0 1840752885 65445888 15148 4294967295 134512640 134736556 3221224560 3221223164 134537548 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/22601/statm): 15978 15148 1116 68 0 15910 0
[pid=22601] vsize: 63912
Current children cumulated CPU time (s) 39.05
Current children cumulated vsize (Kb) 63912
One traced child (pid=22601) exited with status: 30
All traced children have exited ! Game is over.

Child status: 30
Real time (s): 45.4837
CPU time (s): 44.4602
CPU user time (s): 43.4684
CPU system time (s): 0.991849
CPU usage (%): 97.7498
Max. virtual memory (cumulated for all children) (Kb): 63912

Verifier Data

Verifier:	OK	0