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 28288

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc25 THE 2005-05-25 01:41:48 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=13314 boxname=wulflinc25 idbench=1025 idsolver=2 numberseed=0
MD5SUM SOLVER: 754786be69defe53c030aa54f111e0a7  /oldhome/oroussel/solvers/bsolo_lpr_cuts
MD5SUM BENCH:  438e2455c0b7b4efdea6a7e48ef2555a  /oldhome/oroussel/tmp/wulflinc25/normalized-mps-v2-20-10-enigma.opb
REAL COMMAND:  bsolo_lpr_cuts /oldhome/oroussel/tmp/wulflinc25/normalized-mps-v2-20-10-enigma.opb
IDLAUNCH: 13314
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.220
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		: 451.220
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:        554800 kB
Buffers:          5604 kB
Cached:         445704 kB
SwapCached:        688 kB
Active:          25088 kB
Inactive:       428524 kB
HighTotal:      131008 kB
HighFree:         6244 kB
LowTotal:       903652 kB
LowFree:        548556 kB
SwapTotal:     2097892 kB
SwapFree:      2096616 kB
Dirty:             136 kB
Writeback:           0 kB
Mapped:           5608 kB
Slab:            20616 kB
Committed_AS:    63604 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-25 01:43:22 (client local time) WITH STATUS 30 IN 94.2337 SECONDS
stats: 13314 6 94.2337 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 0.13 s
c Initial Lower Bound: 0
c Lower Bound Elapsed time: 0.024
c Use computed LB before first solution.
c NEW SOLUTION FOUND: 3 @ 22.901
c NEW SOLUTION FOUND: 1 @ 47.559
c NEW SOLUTION FOUND: 0 @ 93.058
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: 94.208 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): 0.93 0.97 0.99 2/54 7279
Raw data (stat): 7279 (runsolver) R 7278 1586 1585 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 835014589 1052672 99 4294967295 134512640 135381576 3221224480 3221219692 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): 0.94 0.97 0.99 2/54 7279
Raw data (stat): 7279 (bsolo_lpr_cuts) R 7278 1586 1585 0 -1 0 6398 0 3 0 947 26 0 0 25 0 1 0 835014589 13492224 2557 4294967295 134512640 134714508 3221224576 3221222000 1076062757 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 3294 2557 1111 63 0 3231 0
vsize: 13176
[startup+20.0005 s]
Raw data (loadavg): 0.95 0.97 0.99 2/54 7279
Raw data (stat): 7279 (bsolo_lpr_cuts) R 7278 1586 1585 0 -1 0 13422 0 3 0 1923 50 0 0 25 0 1 0 835014589 18612224 3856 4294967295 134512640 134714508 3221224576 3221222400 1074153782 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 4544 3856 1111 63 0 4481 0
vsize: 18176
[startup+30.001 s]
Raw data (loadavg): 0.95 0.97 0.99 2/54 7279
Raw data (stat): 7279 (bsolo_lpr_cuts) R 7278 1586 1585 0 -1 0 22663 0 3 0 2897 76 0 0 25 0 1 0 835014589 22093824 4713 4294967295 134512640 134714508 3221224576 3221222544 1075550321 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 5394 4713 1111 63 0 5331 0
vsize: 21576
[startup+40.0012 s]
Raw data (loadavg): 0.96 0.97 0.99 2/54 7279
Raw data (stat): 7279 (bsolo_lpr_cuts) R 7278 1586 1585 0 -1 0 34793 0 3 0 3867 106 0 0 25 0 1 0 835014589 25305088 5500 4294967295 134512640 134714508 3221224576 3221222708 1077378598 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 6178 5500 1111 63 0 6115 0
vsize: 24712
[startup+50.0022 s]
Raw data (loadavg): 0.97 0.97 0.99 2/54 7279
Raw data (stat): 7279 (bsolo_lpr_cuts) R 7278 1586 1585 0 -1 0 49685 0 3 0 4828 146 0 0 25 0 1 0 835014589 30556160 6782 4294967295 134512640 134714508 3221224576 3221222976 1074118803 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 7460 6782 1111 63 0 7397 0
vsize: 29840
[startup+60.0019 s]
Raw data (loadavg): 0.97 0.97 0.99 2/54 7279
Raw data (stat): 7279 (bsolo_lpr_cuts) R 7278 1586 1585 0 -1 0 64463 0 3 0 5790 184 0 0 25 0 1 0 835014589 33902592 7593 4294967295 134512640 134714508 3221224576 3221221328 1074247426 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 8277 7593 1111 63 0 8214 0
vsize: 33108
[startup+70.002 s]
Raw data (loadavg): 0.97 0.97 0.99 2/54 7279
Raw data (stat): 7279 (bsolo_lpr_cuts) R 7278 1586 1585 0 -1 0 83211 0 3 0 6741 233 0 0 25 0 1 0 835014589 38510592 8713 4294967295 134512640 134714508 3221224576 3221223088 134540040 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 9402 8713 1111 63 0 9339 0
vsize: 37608
[startup+80.0031 s]
Raw data (loadavg): 0.98 0.97 0.99 2/54 7279
Raw data (stat): 7279 (bsolo_lpr_cuts) R 7278 1586 1585 0 -1 0 96189 0 3 0 7705 269 0 0 25 0 1 0 835014589 42053632 9521 4294967295 134512640 134714508 3221224576 3221220524 1074788964 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 10267 9521 1111 63 0 10204 0
vsize: 41068
[startup+90.0037 s]
Raw data (loadavg): 0.98 0.97 0.99 2/54 7279
Raw data (stat): 7279 (bsolo_lpr_cuts) R 7278 1586 1585 0 -1 0 107962 0 3 0 8677 297 0 0 25 0 1 0 835014589 45072384 10289 4294967295 134512640 134714508 3221224576 3221222880 1074153760 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 11004 10289 1111 63 0 10941 0
vsize: 44016
[startup+94.4872 s]
Raw data (loadavg): 0.98 0.97 0.99 1/53 7279
Raw data (stat): 7279 (bsolo_lpr_cuts) R 7278 1586 1585 0 -1 0 107962 0 3 0 8677 297 0 0 25 0 1 0 835014589 45072384 10289 4294967295 134512640 134714508 3221224576 3221222880 1074153760 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 11004 10289 1111 63 0 10941 0
vsize: 0

Child status: 30
Real time (s): 94.4868
CPU time (s): 94.2337
CPU user time (s): 91.1151
CPU system time (s): 3.11852
CPU usage (%): 99.7321
Max. virtual memory (Kb): 44016
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
Verifier:	FAILED
ERROR: unsatisfied constraint on line 205
#### END VERIFIER DATA ####