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 27104

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc7 THE 2005-05-24 19:32:48 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=18305 boxname=wulflinc7 idbench=1409 idsolver=1 numberseed=0
MD5SUM SOLVER: e973bb179fd0e01ec8c7277096f1c3ef  /oldhome/oroussel/solvers/bsolo_lpr
MD5SUM BENCH:  438e2455c0b7b4efdea6a7e48ef2555a  /oldhome/oroussel/tmp/wulflinc7/normalized-mps-v2-13-7-enigma.opb
REAL COMMAND:  bsolo_lpr /oldhome/oroussel/tmp/wulflinc7/normalized-mps-v2-13-7-enigma.opb
IDLAUNCH: 18305
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.050
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	: 2
cpu MHz		: 451.050
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:        662672 kB
Buffers:         35332 kB
Cached:         315652 kB
SwapCached:        100 kB
Active:          75636 kB
Inactive:       278036 kB
HighTotal:      131008 kB
HighFree:          280 kB
LowTotal:       903652 kB
LowFree:        662392 kB
SwapTotal:     2097136 kB
SwapFree:      2096820 kB
Dirty:             596 kB
Writeback:           0 kB
Mapped:           6740 kB
Slab:            12472 kB
Committed_AS:    63600 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-24 19:34:23 (client local time) WITH STATUS 30 IN 94.5336 SECONDS
stats: 18305 6 94.5336 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 0.123 s
c Initial Lower Bound: 0
c Lower Bound Elapsed time: 0.02
c Use computed LB before first solution.
c NEW SOLUTION FOUND: 3 @ 22.909
c NEW SOLUTION FOUND: 1 @ 47.697
c NEW SOLUTION FOUND: 0 @ 93.405
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: 94.506 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 0.90 2/54 29853
Raw data (stat): 29853 (runsolver) R 29852 24300 24299 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 774572632 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+9.99969 s]
Raw data (loadavg): 0.93 0.95 0.90 2/54 29853
Raw data (stat): 29853 (bsolo_lpr) R 29852 24300 24299 0 -1 0 6576 0 0 0 970 26 0 0 25 0 1 0 774572632 13529088 2591 4294967295 134512640 134714508 3221224592 3221221632 1075971414 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 3303 2591 1111 63 0 3240 0
vsize: 13212
[startup+20.0006 s]
Raw data (loadavg): 0.94 0.96 0.91 2/54 29853
Raw data (stat): 29853 (bsolo_lpr) R 29852 24300 24299 0 -1 0 13562 0 0 0 1946 50 0 0 25 0 1 0 774572632 18571264 3851 4294967295 134512640 134714508 3221224592 3221222612 1077402432 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 4534 3851 1111 63 0 4471 0
vsize: 18136
[startup+30.0015 s]
Raw data (loadavg): 0.95 0.96 0.91 2/54 29853
Raw data (stat): 29853 (bsolo_lpr) R 29852 24300 24299 0 -1 0 23035 0 0 0 2919 78 0 0 25 0 1 0 774572632 22503424 4748 4294967295 134512640 134714508 3221224592 3221220864 1074805399 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 5494 4748 1111 63 0 5431 0
vsize: 21976
[startup+40.0015 s]
Raw data (loadavg): 0.95 0.96 0.91 2/54 29853
Raw data (stat): 29853 (bsolo_lpr) R 29852 24300 24299 0 -1 0 35133 0 0 0 3888 108 0 0 25 0 1 0 774572632 25530368 5516 4294967295 134512640 134714508 3221224592 3221220912 1075894538 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 6233 5516 1111 63 0 6170 0
vsize: 24932
[startup+50.0028 s]
Raw data (loadavg): 0.96 0.96 0.91 2/54 29853
Raw data (stat): 29853 (bsolo_lpr) R 29852 24300 24299 0 -1 0 49753 0 0 0 4847 149 0 0 25 0 1 0 774572632 30597120 6792 4294967295 134512640 134714508 3221224592 3221222592 1074918591 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 7470 6792 1111 63 0 7407 0
vsize: 29880
[startup+60.0022 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 29853
Raw data (stat): 29853 (bsolo_lpr) R 29852 24300 24299 0 -1 0 64495 0 0 0 5811 185 0 0 25 0 1 0 774572632 33873920 7593 4294967295 134512640 134714508 3221224592 3221222416 1075823337 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 8270 7593 1111 63 0 8207 0
vsize: 33080
[startup+70.0024 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 29853
Raw data (stat): 29853 (bsolo_lpr) R 29852 24300 24299 0 -1 0 82965 0 0 0 6760 236 0 0 25 0 1 0 774572632 38391808 8696 4294967295 134512640 134714508 3221224592 3221222856 1074138306 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 9373 8696 1111 63 0 9310 0
vsize: 37492
[startup+80.0024 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 29853
Raw data (stat): 29853 (bsolo_lpr) R 29852 24300 24299 0 -1 0 95993 0 0 0 7726 271 0 0 25 0 1 0 774572632 41725952 9510 4294967295 134512640 134714508 3221224592 3221222844 1074138112 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 10187 9510 1111 63 0 10124 0
vsize: 40748
[startup+90.003 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 29853
Raw data (stat): 29853 (bsolo_lpr) R 29852 24300 24299 0 -1 0 107893 0 0 0 8693 304 0 0 25 0 1 0 774572632 44703744 10217 4294967295 134512640 134714508 3221224592 3221222688 1074153782 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 10914 10217 1111 63 0 10851 0
vsize: 43656
[startup+94.5629 s]
Raw data (loadavg): 0.98 0.96 0.91 1/53 29853
Raw data (stat): 29853 (bsolo_lpr) R 29852 24300 24299 0 -1 0 107893 0 0 0 8693 304 0 0 25 0 1 0 774572632 44703744 10217 4294967295 134512640 134714508 3221224592 3221222688 1074153782 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 10914 10217 1111 63 0 10851 0
vsize: 0

Child status: 30
Real time (s): 94.5626
CPU time (s): 94.5336
CPU user time (s): 91.3561
CPU system time (s): 3.17752
CPU usage (%): 99.9694
Max. virtual memory (Kb): 43656
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
Verifier:	FAILED
ERROR: unsatisfied constraint on line 205
#### END VERIFIER DATA ####