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/miplib/normalized-mps-v2-13-7-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	0.409937
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 27469

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc30 THE 2005-05-24 22:20:12 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=16798 boxname=wulflinc30 idbench=1293 idsolver=2 numberseed=0
MD5SUM SOLVER: 754786be69defe53c030aa54f111e0a7  /oldhome/oroussel/solvers/bsolo_lpr_cuts
MD5SUM BENCH:  69bc407892007f468f206122d0d17aba  /oldhome/oroussel/tmp/wulflinc30/normalized-mps-v2-13-7-enigma.opb
REAL COMMAND:  bsolo_lpr_cuts /oldhome/oroussel/tmp/wulflinc30/normalized-mps-v2-13-7-enigma.opb
IDLAUNCH: 16798
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.072
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		: 451.072
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:        899616 kB
Buffers:         12064 kB
Cached:         101216 kB
SwapCached:       1572 kB
Active:          21472 kB
Inactive:        94752 kB
HighTotal:      131008 kB
HighFree:        79996 kB
LowTotal:       903652 kB
LowFree:        819620 kB
SwapTotal:     2097892 kB
SwapFree:      2095420 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5008 kB
Slab:            13068 kB
Committed_AS:    63596 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-24 22:21:47 (client local time) WITH STATUS 30 IN 94.3976 SECONDS
stats: 16798 6 94.3976 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 0.129 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 @ 22.913
c NEW SOLUTION FOUND: 1 @ 47.735
c NEW SOLUTION FOUND: 0 @ 93.247
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: 94.37 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 0.98 0.99 2/54 27492
Raw data (stat): 27492 (runsolver) R 27491 22056 22055 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 833785518 1052672 99 4294967295 134512640 135381576 3221224480 3221219692 135158418 0 2147483391 7 90112 0 0 0 17 0 0 0
Raw data (statm): 257 99 215 215 0 42 0
vsize: 1028
[startup+10.0008 s]
Raw data (loadavg): 0.93 0.98 0.99 2/54 27492
Raw data (stat): 27492 (bsolo_lpr_cuts) R 27491 22056 22055 0 -1 0 6495 0 0 0 970 27 0 0 25 0 1 0 833785518 13553664 2613 4294967295 134512640 134714508 3221224576 3221222400 1075823538 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 3309 2613 1111 63 0 3246 0
vsize: 13236
[startup+20.0008 s]
Raw data (loadavg): 0.94 0.98 0.99 2/54 27492
Raw data (stat): 27492 (bsolo_lpr_cuts) R 27491 22056 22055 0 -1 0 13554 0 0 0 1945 52 0 0 25 0 1 0 833785518 18612224 3862 4294967295 134512640 134714508 3221224576 3221223036 1077781665 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 4544 3862 1111 63 0 4481 0
vsize: 18176
[startup+30.0016 s]
Raw data (loadavg): 0.95 0.98 0.99 2/54 27492
Raw data (stat): 27492 (bsolo_lpr_cuts) R 27491 22056 22055 0 -1 0 22919 0 0 0 2916 81 0 0 25 0 1 0 833785518 22147072 4726 4294967295 134512640 134714508 3221224576 3221222400 1075823494 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 5407 4726 1111 63 0 5344 0
vsize: 21628
[startup+40.0022 s]
Raw data (loadavg): 0.95 0.98 0.99 2/54 27492
Raw data (stat): 27492 (bsolo_lpr_cuts) R 27491 22056 22055 0 -1 0 34682 0 3 0 3858 115 0 0 25 0 1 0 833785518 25284608 5495 4294967295 134512640 134714508 3221224576 3221223452 134543615 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 6173 5495 1111 63 0 6110 0
vsize: 24692
[startup+50.0025 s]
Raw data (loadavg): 0.96 0.98 0.99 2/54 27492
Raw data (stat): 27492 (bsolo_lpr_cuts) R 27491 22056 22055 0 -1 0 49307 0 3 0 4818 155 0 0 25 0 1 0 833785518 30457856 6758 4294967295 134512640 134714508 3221224576 3221222696 1074138162 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 7436 6758 1111 63 0 7373 0
vsize: 29744
[startup+60.0031 s]
Raw data (loadavg): 0.97 0.98 0.99 2/54 27492
Raw data (stat): 27492 (bsolo_lpr_cuts) R 27491 22056 22055 0 -1 0 63639 0 3 0 5780 193 0 0 25 0 1 0 833785518 33849344 7542 4294967295 134512640 134714508 3221224576 3221220736 1075091317 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 8264 7542 1111 63 0 8201 0
vsize: 33056
[startup+70.0036 s]
Raw data (loadavg): 0.97 0.98 0.99 2/54 27492
Raw data (stat): 27492 (bsolo_lpr_cuts) R 27491 22056 22055 0 -1 0 82351 0 3 0 6733 240 0 0 25 0 1 0 833785518 38576128 8666 4294967295 134512640 134714508 3221224576 3221221564 1077404742 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 9418 8666 1111 63 0 9355 0
vsize: 37672
[startup+80.0037 s]
Raw data (loadavg): 0.98 0.98 0.99 2/54 27492
Raw data (stat): 27492 (bsolo_lpr_cuts) R 27491 22056 22055 0 -1 0 95660 0 3 0 7699 273 0 0 25 0 1 0 833785518 41996288 9505 4294967295 134512640 134714508 3221224576 3221220736 1075095166 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 10253 9507 1111 63 0 10190 0
vsize: 41012
[startup+90.0045 s]
Raw data (loadavg): 0.98 0.98 0.99 2/54 27492
Raw data (stat): 27492 (bsolo_lpr_cuts) R 27491 22056 22055 0 -1 0 107880 0 3 0 8668 305 0 0 25 0 1 0 833785518 44703744 10207 4294967295 134512640 134714508 3221224576 3221222768 1074063742 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 10914 10207 1111 63 0 10851 0
vsize: 43656
[startup+94.6688 s]
Raw data (loadavg): 0.98 0.98 0.99 1/53 27492
Raw data (stat): 27492 (bsolo_lpr_cuts) R 27491 22056 22055 0 -1 0 107880 0 3 0 8668 305 0 0 25 0 1 0 833785518 44703744 10207 4294967295 134512640 134714508 3221224576 3221222768 1074063742 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 10914 10207 1111 63 0 10851 0
vsize: 0

Child status: 30
Real time (s): 94.6674
CPU time (s): 94.3976
CPU user time (s): 91.1961
CPU system time (s): 3.20151
CPU usage (%): 99.715
Max. virtual memory (Kb): 43656
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
Verifier:	FAILED
ERROR: unsatisfied constraint on line 205
#### END VERIFIER DATA ####