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-v2-13-7/MIPLIB/miplib3/normalized-mps-v2-13-7-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	0.415935
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 25687

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc31 THE 2005-05-21 17:43:43 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=18306 boxname=wulflinc31 idbench=1409 idsolver=2 numberseed=0
MD5SUM SOLVER: 754786be69defe53c030aa54f111e0a7  /oldhome/oroussel/solvers/bsolo_lpr_cuts
MD5SUM BENCH:  438e2455c0b7b4efdea6a7e48ef2555a  /oldhome/oroussel/tmp/wulflinc31/normalized-mps-v2-13-7-enigma.opb
REAL COMMAND:  bsolo_lpr_cuts /oldhome/oroussel/tmp/wulflinc31/normalized-mps-v2-13-7-enigma.opb
IDLAUNCH: 18306
/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:        918388 kB
Buffers:         21880 kB
Cached:          73800 kB
SwapCached:        948 kB
Active:          69544 kB
Inactive:        28324 kB
HighTotal:      131008 kB
HighFree:        56672 kB
LowTotal:       903652 kB
LowFree:        861716 kB
SwapTotal:     2097892 kB
SwapFree:      2096016 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5348 kB
Slab:            12556 kB
Committed_AS:    63856 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-21 17:45:19 (client local time) WITH STATUS 30 IN 94.7276 SECONDS
stats: 18306 6 94.7276 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: 0.021
c Use computed LB before first solution.
c NEW SOLUTION FOUND: 3 @ 22.936
c NEW SOLUTION FOUND: 1 @ 47.981
c NEW SOLUTION FOUND: 0 @ 93.587
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: 94.69 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 0.97 0.95 2/55 14081
Raw data (stat): 14081 (runsolver) R 14080 7876 7672 0 -1 64 5 0 0 0 0 0 0 0 19 0 1 0 806188791 1056768 100 4294967295 134512640 135381576 3221221680 3221216896 135158418 0 2147483391 1 90112 0 0 0 17 0 0 0
Raw data (statm): 258 100 215 215 0 43 0
vsize: 1032
[startup+10.0011 s]
Raw data (loadavg): 0.93 0.97 0.95 2/55 14081
Raw data (stat): 14081 (bsolo_lpr_cuts) R 14080 7876 7672 0 -1 0 6468 0 0 0 970 24 0 0 25 0 1 0 806188791 13398016 2585 4294967295 134512640 134714508 3221221776 3221219632 1074153800 0 0 1 0 0 0 0 17 0 0 0
Raw data (statm): 3271 2585 1111 63 0 3208 0
vsize: 13084
[startup+20.0019 s]
Raw data (loadavg): 0.94 0.97 0.95 2/55 14081
Raw data (stat): 14081 (bsolo_lpr_cuts) R 14080 7876 7672 0 -1 0 13548 0 0 0 1944 51 0 0 25 0 1 0 806188791 18702336 3884 4294967295 134512640 134714508 3221221776 3221220492 134558476 0 0 1 0 0 0 0 17 0 0 0
Raw data (statm): 4566 3884 1111 63 0 4503 0
vsize: 18264
[startup+30.0024 s]
Raw data (loadavg): 0.95 0.97 0.95 2/55 14081
Raw data (stat): 14081 (bsolo_lpr_cuts) R 14080 7876 7672 0 -1 0 22705 0 0 0 2915 79 0 0 25 0 1 0 806188791 22364160 4732 4294967295 134512640 134714508 3221221776 3221218816 1075971376 0 0 1 0 0 0 0 17 1 0 0
Raw data (statm): 5460 4732 1111 63 0 5397 0
vsize: 21840
[startup+40.0028 s]
Raw data (loadavg): 0.95 0.97 0.95 2/55 14081
Raw data (stat): 14081 (bsolo_lpr_cuts) R 14080 7876 7672 0 -1 0 34611 0 0 0 3884 110 0 0 25 0 1 0 806188791 25255936 5488 4294967295 134512640 134714508 3221221776 3221220156 1077781665 0 0 1 0 0 0 0 17 0 0 0
Raw data (statm): 6166 5488 1111 63 0 6103 0
vsize: 24664
[startup+50.0027 s]
Raw data (loadavg): 0.96 0.97 0.95 2/55 14081
Raw data (stat): 14081 (bsolo_lpr_cuts) R 14080 7876 7672 0 -1 0 49251 0 0 0 4841 153 0 0 25 0 1 0 806188791 30449664 6756 4294967295 134512640 134714508 3221221776 3221219504 1075828205 0 0 1 0 0 0 0 17 0 0 0
Raw data (statm): 7434 6756 1111 63 0 7371 0
vsize: 29736
[startup+60.0039 s]
Raw data (loadavg): 0.97 0.97 0.95 2/55 14081
Raw data (stat): 14081 (bsolo_lpr_cuts) R 14080 7876 7672 0 -1 0 63665 0 0 0 5804 191 0 0 25 0 1 0 806188791 33619968 7531 4294967295 134512640 134714508 3221221776 3221220236 1077781665 0 0 1 0 0 0 0 17 0 0 0
Raw data (statm): 8208 7531 1111 63 0 8145 0
vsize: 32832
[startup+70.0045 s]
Raw data (loadavg): 0.97 0.97 0.95 2/55 14081
Raw data (stat): 14081 (bsolo_lpr_cuts) R 14080 7876 7672 0 -1 0 82299 0 0 0 6754 240 0 0 25 0 1 0 806188791 38580224 8673 4294967295 134512640 134714508 3221221776 3221218352 1076050296 0 0 1 0 0 0 0 17 0 0 0
Raw data (statm): 9341 8664 1111 63 0 9278 0
vsize: 37676
[startup+80.0045 s]
Raw data (loadavg): 0.98 0.97 0.95 2/55 14081
Raw data (stat): 14081 (bsolo_lpr_cuts) R 14080 7876 7672 0 -1 0 95577 0 0 0 7719 275 0 0 25 0 1 0 806188791 41799680 9528 4294967295 134512640 134714508 3221221776 3221220512 134622743 0 0 1 0 0 0 0 17 0 0 0
Raw data (statm): 10205 9528 1111 63 0 10142 0
vsize: 40820
[startup+90.0047 s]
Raw data (loadavg): 0.98 0.97 0.95 2/55 14081
Raw data (stat): 14081 (bsolo_lpr_cuts) R 14080 7876 7672 0 -1 0 107873 0 0 0 8687 308 0 0 25 0 1 0 806188791 44576768 10197 4294967295 134512640 134714508 3221221776 3221220368 134543110 0 0 1 0 0 0 0 17 0 0 0
Raw data (statm): 10883 10197 1111 63 0 10820 0
vsize: 43532
[startup+94.7778 s]
Raw data (loadavg): 0.98 0.97 0.95 1/54 14081
Raw data (stat): 14081 (bsolo_lpr_cuts) R 14080 7876 7672 0 -1 0 107873 0 0 0 8687 308 0 0 25 0 1 0 806188791 44576768 10197 4294967295 134512640 134714508 3221221776 3221220368 134543110 0 0 1 0 0 0 0 17 0 0 0
Raw data (statm): 10883 10197 1111 63 0 10820 0
vsize: 0

Child status: 30
Real time (s): 94.7776
CPU time (s): 94.7276
CPU user time (s): 91.4801
CPU system time (s): 3.24751
CPU usage (%): 99.9473
Max. virtual memory (Kb): 43532
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
Verifier:	FAILED
ERROR: unsatisfied constraint on line 205
#### END VERIFIER DATA ####