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/miplib/normalized-mps-v2-20-10-enigma.opb
MD5SUM	69bc407892007f468f206122d0d17aba
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	0.416936
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 28644

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc2 THE 2005-05-25 03:43:16 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=11806 boxname=wulflinc2 idbench=909 idsolver=2 numberseed=0
MD5SUM SOLVER: 754786be69defe53c030aa54f111e0a7  /oldhome/oroussel/solvers/bsolo_lpr_cuts
MD5SUM BENCH:  69bc407892007f468f206122d0d17aba  /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-20-10-enigma.opb
REAL COMMAND:  bsolo_lpr_cuts /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-20-10-enigma.opb
IDLAUNCH: 11806
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.191
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	: 2
cpu MHz		: 451.191
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:        658564 kB
Buffers:         15264 kB
Cached:         340700 kB
SwapCached:        696 kB
Active:          23584 kB
Inactive:       334748 kB
HighTotal:      131008 kB
HighFree:        21168 kB
LowTotal:       903652 kB
LowFree:        637396 kB
SwapTotal:     2097136 kB
SwapFree:      2095796 kB
Dirty:              24 kB
Writeback:           0 kB
Mapped:           5620 kB
Slab:            12060 kB
Committed_AS:    71788 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-25 03:44:51 (client local time) WITH STATUS 30 IN 95.1535 SECONDS
stats: 11806 6 95.1535 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: 0.021
c Use computed LB before first solution.
c NEW SOLUTION FOUND: 3 @ 23.105
c NEW SOLUTION FOUND: 1 @ 48.04
c NEW SOLUTION FOUND: 0 @ 93.941
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: 95.129 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): 0.81 0.94 0.90 2/54 8239
Raw data (stat): 8239 (runsolver) R 8238 31399 31398 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 777510864 1052672 99 4294967295 134512640 135381576 3221224496 3221219708 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+10.0003 s]
Raw data (loadavg): 0.84 0.94 0.90 2/54 8239
Raw data (stat): 8239 (bsolo_lpr_cuts) R 8238 31399 31398 0 -1 0 6495 0 0 0 972 25 0 0 25 0 1 0 777510864 13553664 2613 4294967295 134512640 134714508 3221224592 3221222592 1074918594 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 3309 2613 1111 63 0 3246 0
vsize: 13236
[startup+20.0013 s]
Raw data (loadavg): 0.86 0.94 0.90 2/54 8239
Raw data (stat): 8239 (bsolo_lpr_cuts) R 8238 31399 31398 0 -1 0 13466 0 0 0 1946 51 0 0 25 0 1 0 777510864 18796544 3897 4294967295 134512640 134714508 3221224592 3221222592 1074918583 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 4589 3897 1111 63 0 4526 0
vsize: 18356
[startup+30.0008 s]
Raw data (loadavg): 0.88 0.94 0.91 2/54 8239
Raw data (stat): 8239 (bsolo_lpr_cuts) R 8238 31399 31398 0 -1 0 22682 0 0 0 2916 81 0 0 25 0 1 0 777510864 22081536 4710 4294967295 134512640 134714508 3221224592 3221222920 1077377712 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 5391 4710 1111 63 0 5328 0
vsize: 21564
[startup+40.0014 s]
Raw data (loadavg): 0.90 0.94 0.91 2/54 8239
Raw data (stat): 8239 (bsolo_lpr_cuts) R 8238 31399 31398 0 -1 0 34491 0 1 0 3870 115 0 0 25 0 1 0 777510864 25194496 5473 4294967295 134512640 134714508 3221224592 3221222944 1074115275 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 6151 5473 1111 63 0 6088 0
vsize: 24604
[startup+50.0016 s]
Raw data (loadavg): 0.92 0.94 0.91 2/54 8239
Raw data (stat): 8239 (bsolo_lpr_cuts) R 8238 31399 31398 0 -1 0 49073 0 1 0 4828 157 0 0 25 0 1 0 777510864 30375936 6738 4294967295 134512640 134714508 3221224592 3221222992 1074118815 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 7416 6738 1111 63 0 7353 0
vsize: 29664
[startup+60.0011 s]
Raw data (loadavg): 0.93 0.95 0.91 2/54 8239
Raw data (stat): 8239 (bsolo_lpr_cuts) R 8238 31399 31398 0 -1 0 63421 0 1 0 5792 193 0 0 25 0 1 0 777510864 33734656 7520 4294967295 134512640 134714508 3221224592 3221221464 1077378037 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 8236 7520 1111 63 0 8173 0
vsize: 32944
[startup+70.0015 s]
Raw data (loadavg): 0.94 0.95 0.91 2/54 8239
Raw data (stat): 8239 (bsolo_lpr_cuts) R 8238 31399 31398 0 -1 0 82128 0 1 0 6743 242 0 0 25 0 1 0 777510864 38268928 8653 4294967295 134512640 134714508 3221224592 3221222772 1077782939 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 9343 8653 1111 63 0 9280 0
vsize: 37372
[startup+80.0015 s]
Raw data (loadavg): 0.95 0.95 0.91 2/54 8239
Raw data (stat): 8239 (bsolo_lpr_cuts) R 8238 31399 31398 0 -1 0 95353 0 1 0 7710 275 0 0 25 0 1 0 777510864 41996288 9501 4294967295 134512640 134714508 3221224592 3221220752 1075091317 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 10253 9501 1111 63 0 10190 0
vsize: 41012
[startup+90.0019 s]
Raw data (loadavg): 0.95 0.95 0.91 2/54 8239
Raw data (stat): 8239 (bsolo_lpr_cuts) R 8238 31399 31398 0 -1 0 107845 0 1 0 8679 307 0 0 25 0 1 0 777510864 45027328 10307 4294967295 134512640 134714508 3221224592 3221223312 134622764 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 10993 10307 1111 63 0 10930 0
vsize: 43972
[startup+95.2949 s]
Raw data (loadavg): 0.96 0.95 0.91 1/53 8239
Raw data (stat): 8239 (bsolo_lpr_cuts) R 8238 31399 31398 0 -1 0 107845 0 1 0 8679 307 0 0 25 0 1 0 777510864 45027328 10307 4294967295 134512640 134714508 3221224592 3221223312 134622764 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): 95.2946
CPU time (s): 95.1535
CPU user time (s): 91.914
CPU system time (s): 3.23951
CPU usage (%): 99.852
Max. virtual memory (Kb): 43972
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
Verifier:	FAILED
ERROR: unsatisfied constraint on line 205
#### END VERIFIER DATA ####