PB'05 competition: run trace

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:

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.
SOLVER DATA
This is the output of the solver (stdout and stderr).
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.
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

Name	normalized-opb/mps-v2-20-10/MIPLIB/miplib3/normalized-mps-v2-20-10-enigma.opb
MD5SUM	438e2455c0b7b4efdea6a7e48ef2555a
Bench Category	optimization, medium integers (OPTMEDINT)
Has Objective Function	YES
Satisfiable	YES
(Un)Satisfiability was proved	YES
Best value of the objective function	0
Optimality of the best value was proved	NO
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 numbers	24
Best result obtained on this benchmark	SAT
Best CPU time to get the best result obtained on this benchmark	0.417936
Number of variables	100
Total number of constraints	121
Number of constraints which are clauses	0
Number of constraints which are cardinality constraints (but not clauses)	120
Number of constraints which are nor clauses,nor cardinality constraints	1
Minimum length of a constraint	1
Maximum length of a constraint	90

Trace number 26409

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc28 THE 2005-05-24 15:41:38 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=13313 boxname=wulflinc28 idbench=1025 idsolver=1 numberseed=0
MD5SUM SOLVER: e973bb179fd0e01ec8c7277096f1c3ef  /oldhome/oroussel/solvers/bsolo_lpr
MD5SUM BENCH:  438e2455c0b7b4efdea6a7e48ef2555a  /oldhome/oroussel/tmp/wulflinc28/normalized-mps-v2-20-10-enigma.opb
REAL COMMAND:  bsolo_lpr /oldhome/oroussel/tmp/wulflinc28/normalized-mps-v2-20-10-enigma.opb
IDLAUNCH: 13313
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.077
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		: 451.077
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:        817980 kB
Buffers:         33860 kB
Cached:         161556 kB
SwapCached:       1104 kB
Active:          56400 kB
Inactive:       141572 kB
HighTotal:      131008 kB
HighFree:         9464 kB
LowTotal:       903652 kB
LowFree:        808516 kB
SwapTotal:     2097640 kB
SwapFree:      2096184 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5544 kB
Slab:            13108 kB
Committed_AS:    63600 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-24 15:43:14 (client local time) WITH STATUS 30 IN 94.8676 SECONDS
stats: 13313 6 94.8676 30
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c INFO: OSL Context initialized.
c Initial problem consists of 100 variables and 42 constraints.
c After prepocess the problem consists of 100 variables and 72 constraints.
c preprocess terminated 0.128 s
c Initial Lower Bound: 0
c Lower Bound Elapsed time: 0.022
c Use computed LB before first solution.
c NEW SOLUTION FOUND: 3 @ 23.039
c NEW SOLUTION FOUND: 1 @ 47.902
c NEW SOLUTION FOUND: 0 @ 93.718
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 Exit Code: 30
c Total time: 94.841 s
#### END SOLVER DATA ####
#### BEGIN WATCHER DATA ####
Enforcing CPU limit (will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime (will send SIGXCPU) limit: 1230 seconds
Enforcing VSIZE limit: 943718400 bytes
Raw data (loadavg): 0.91 0.95 0.98 2/54 25767
Raw data (stat): 25767 (runsolver) R 25766 24821 24820 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 831404952 1052672 99 4294967295 134512640 135381576 3221224496 3221219712 135158418 0 2147483391 7 90112 0 0 0 17 1 0 0
Raw data (statm): 257 99 215 215 0 42 0
vsize: 1028
[startup+9.99945 s]
Raw data (loadavg): 0.93 0.95 0.98 2/54 25767
Raw data (stat): 25767 (bsolo_lpr) R 25766 24821 24820 0 -1 0 6398 0 3 0 945 27 0 0 25 0 1 0 831404952 13295616 2556 4294967295 134512640 134714508 3221224592 3221222416 1075823588 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 3246 2556 1111 63 0 3183 0
vsize: 12984
[startup+20.0001 s]
Raw data (loadavg): 0.94 0.96 0.98 2/54 25767
Raw data (stat): 25767 (bsolo_lpr) R 25766 24821 24820 0 -1 0 13345 0 3 0 1919 53 0 0 25 0 1 0 831404952 18690048 3852 4294967295 134512640 134714508 3221224592 3221221360 1076083478 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 4563 3852 1111 63 0 4500 0
vsize: 18252
[startup+29.9999 s]
Raw data (loadavg): 1.02 0.97 0.99 2/54 25767
Raw data (stat): 25767 (bsolo_lpr) R 25766 24821 24820 0 -1 0 22387 0 3 0 2893 79 0 0 25 0 1 0 831404952 22007808 4692 4294967295 134512640 134714508 3221224592 3221223304 134553175 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 5373 4692 1111 63 0 5310 0
vsize: 21492
[startup+39.9995 s]
Raw data (loadavg): 1.02 0.97 0.99 2/54 25767
Raw data (stat): 25767 (bsolo_lpr) R 25766 24821 24820 0 -1 0 34412 0 3 0 3857 114 0 0 25 0 1 0 831404952 25194496 5473 4294967295 134512640 134714508 3221224592 3221223516 1077781665 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 6151 5473 1111 63 0 6088 0
vsize: 24604
[startup+50.0003 s]
Raw data (loadavg): 1.01 0.97 0.99 2/54 25767
Raw data (stat): 25767 (bsolo_lpr) R 25766 24821 24820 0 -1 0 49096 0 3 0 4813 159 0 0 25 0 1 0 831404952 30371840 6737 4294967295 134512640 134714508 3221224592 3221222888 1074138150 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 7415 6737 1111 63 0 7352 0
vsize: 29660
[startup+60 s]
Raw data (loadavg): 1.01 0.97 0.99 2/54 25767
Raw data (stat): 25767 (bsolo_lpr) R 25766 24821 24820 0 -1 0 63515 0 3 0 5774 197 0 0 25 0 1 0 831404952 33599488 7526 4294967295 134512640 134714508 3221224592 3221221512 1077377498 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 8203 7526 1111 63 0 8140 0
vsize: 32812
[startup+70.0006 s]
Raw data (loadavg): 1.01 0.97 0.99 2/54 25767
Raw data (stat): 25767 (bsolo_lpr) R 25766 24821 24820 0 -1 0 82253 0 3 0 6723 248 0 0 25 0 1 0 831404952 38301696 8674 4294967295 134512640 134714508 3221224592 3221223384 134558485 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 9351 8674 1111 63 0 9288 0
vsize: 37404
[startup+80.0002 s]
Raw data (loadavg): 1.01 0.97 0.99 2/54 25767
Raw data (stat): 25767 (bsolo_lpr) R 25766 24821 24820 0 -1 0 95442 0 3 0 7690 281 0 0 25 0 1 0 831404952 41676800 9492 4294967295 134512640 134714508 3221224592 3221222688 1074153782 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 10175 9492 1111 63 0 10112 0
vsize: 40700
[startup+89.9999 s]
Raw data (loadavg): 1.01 0.97 0.99 2/54 25767
Raw data (stat): 25767 (bsolo_lpr) R 25766 24821 24820 0 -1 0 107843 0 3 0 8658 313 0 0 25 0 1 0 831404952 45027328 10307 4294967295 134512640 134714508 3221224592 3221223312 134622761 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 10993 10307 1111 63 0 10930 0
vsize: 43972
[startup+95.1535 s]
Raw data (loadavg): 1.00 0.97 0.99 1/53 25767
Raw data (stat): 25767 (bsolo_lpr) R 25766 24821 24820 0 -1 0 107843 0 3 0 8658 313 0 0 25 0 1 0 831404952 45027328 10307 4294967295 134512640 134714508 3221224592 3221223312 134622761 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 10993 10307 1111 63 0 10930 0
vsize: 0

Child status: 30
Real time (s): 95.1532
CPU time (s): 94.8676
CPU user time (s): 91.5871
CPU system time (s): 3.2805
CPU usage (%): 99.6999
Max. virtual memory (Kb): 43972
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
Verifier:	FAILED
ERROR: unsatisfied constraint on line 205
#### END VERIFIER DATA ####