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-qnet1_o.opb
MD5SUM	bf1b0bf5e7a010c339b0158758f6f277
Bench Category	optimization, big integers (OPTBIGINT)
Has Objective Function	YES
Satisfiable	NO
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of terms in the objective function	3720
Biggest coefficient in the objective function	536870912
Number of bits for the biggest coefficient in the objective function	30
Sum of the numbers in the objective function	133143986052
Number of bits of the sum of numbers in the objective function	37
Biggest number in a constraint	8388608000000
Number of bits of the biggest number in a constraint	43
Biggest sum of numbers in a constraint	17124187591735
Number of bits of the biggest sum of numbers	44
Best result obtained on this benchmark	UNSAT
Best CPU time to get the best result obtained on this benchmark	0.055991
Number of variables	5380
Total number of constraints	585
Number of constraints which are clauses	32
Number of constraints which are cardinality constraints (but not clauses)	48
Number of constraints which are nor clauses,nor cardinality constraints	505
Minimum length of a constraint	2
Maximum length of a constraint	54

Trace number 35290

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc31 THE 2005-05-28 12:39:34 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24592 boxname=wulflinc31 idbench=1064 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  bf1b0bf5e7a010c339b0158758f6f277  /oldhome/oroussel/tmp/wulflinc31/normalized-mps-v2-20-10-qnet1_o.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc31/normalized-mps-v2-20-10-qnet1_o.opb
IDLAUNCH: 24592
/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:        844324 kB
Buffers:         35488 kB
Cached:         132372 kB
SwapCached:       1052 kB
Active:          81208 kB
Inactive:        88832 kB
HighTotal:      131008 kB
HighFree:         5768 kB
LowTotal:       903652 kB
LowFree:        838556 kB
SwapTotal:     2097892 kB
SwapFree:      2095928 kB
Dirty:              32 kB
Writeback:           0 kB
Mapped:           5108 kB
Slab:            14760 kB
Committed_AS:    63812 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-28 12:43:26 (client local time) WITH STATUS 20 IN 232.098 SECONDS
stats: 24592 7 232.098 20
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c This solver internally uses Chaff 2004.11.15 Simplified
c running zchaff...
c [startup+91.9035 s]  setting bit 36 to 0
c CONFLICT during preprocess 
c [startup+95.7929 s]  setting bit 35 to 0
c CONFLICT during preprocess 
c [startup+99.6779 s]  setting bit 34 to 0
c CONFLICT during preprocess 
c [startup+103.565 s]  setting bit 33 to 0
c CONFLICT during preprocess 
c [startup+107.437 s]  setting bit 32 to 0
c CONFLICT during preprocess 
c [startup+111.288 s]  setting bit 31 to 0
c CONFLICT during preprocess 
c [startup+115.172 s]  setting bit 30 to 0
c CONFLICT during preprocess 
c [startup+119.051 s]  setting bit 29 to 0
c CONFLICT during preprocess 
c [startup+122.933 s]  setting bit 28 to 0
c CONFLICT during preprocess 
c [startup+126.816 s]  setting bit 27 to 0
c CONFLICT during preprocess 
c [startup+130.647 s]  setting bit 26 to 0
c CONFLICT during preprocess 
c [startup+134.48 s]  setting bit 25 to 0
c CONFLICT during preprocess 
c [startup+138.314 s]  setting bit 24 to 0
c CONFLICT during preprocess 
c [startup+142.145 s]  setting bit 23 to 0
c CONFLICT during preprocess 
c [startup+145.98 s]  setting bit 22 to 0
c CONFLICT during preprocess 
c [startup+149.809 s]  setting bit 21 to 0
c CONFLICT during preprocess 
c [startup+153.638 s]  setting bit 20 to 0
c CONFLICT during preprocess 
c [startup+157.468 s]  setting bit 19 to 0
c CONFLICT during preprocess 
c [startup+161.307 s]  setting bit 18 to 0
c CONFLICT during preprocess 
c [startup+165.152 s]  setting bit 17 to 0
c CONFLICT during preprocess 
c [startup+168.986 s]  setting bit 16 to 0
c CONFLICT during preprocess 
c [startup+172.819 s]  setting bit 15 to 0
c CONFLICT during preprocess 
c [startup+176.649 s]  setting bit 14 to 0
c CONFLICT during preprocess 
c [startup+180.478 s]  setting bit 13 to 0
c CONFLICT during preprocess 
c [startup+184.311 s]  setting bit 12 to 0
c CONFLICT during preprocess 
c [startup+188.142 s]  setting bit 11 to 0
c CONFLICT during preprocess 
c [startup+191.975 s]  setting bit 10 to 0
c CONFLICT during preprocess 
c [startup+195.81 s]  setting bit 9 to 0
c CONFLICT during preprocess 
c [startup+199.644 s]  setting bit 8 to 0
c CONFLICT during preprocess 
c [startup+203.474 s]  setting bit 7 to 0
c CONFLICT during preprocess 
c [startup+207.303 s]  setting bit 6 to 0
c CONFLICT during preprocess 
c [startup+211.132 s]  setting bit 5 to 0
c CONFLICT during preprocess 
c [startup+214.964 s]  setting bit 4 to 0
c CONFLICT during preprocess 
c [startup+218.792 s]  setting bit 3 to 0
c CONFLICT during preprocess 
c [startup+222.617 s]  setting bit 2 to 0
c CONFLICT during preprocess 
c [startup+226.447 s]  setting bit 1 to 0
c CONFLICT during preprocess 
c [startup+230.277 s]  setting bit 0 to 0
s UNSATISFIABLE
#### 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
Enforcing Stack size limit: 67108864 bytes
Current StackSize limit: 67108864 bytes
Raw data (loadavg): 0.84 0.94 0.90 2/55 20006
Raw data (stat): 20006 (runsolver) R 20005 29618 29617 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 864850609 884736 94 4294967295 134512640 135332820 3221224464 3221219644 135092226 0 2147483391 7 90112 0 0 0 17 0 0 0
Raw data (statm): 216 94 205 205 0 11 0
vsize: 864
[startup+10.0008 s]
Raw data (loadavg): 0.87 0.94 0.90 2/55 20008
Raw data (stat): 20006 (pb2sat) R 20005 29618 29617 0 -1 0 29975 0 0 0 930 68 0 0 25 0 1 0 864850609 90775552 19033 4294967295 134512640 135726644 3221224576 3220273752 134784091 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 22162 19033 300 300 0 21862 0
vsize: 88648
[startup+20.0014 s]
Raw data (loadavg): 0.89 0.94 0.90 2/55 20008
Raw data (stat): 20006 (pb2sat) R 20005 29618 29617 0 -1 0 60845 0 0 0 1865 134 0 0 25 0 1 0 864850609 180011008 38918 4294967295 134512640 135726644 3221224576 3220765752 135282351 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 43948 38918 300 300 0 43648 0
vsize: 175792
[startup+30.0019 s]
Raw data (loadavg): 0.90 0.94 0.90 2/55 20008
Raw data (stat): 20006 (pb2sat) R 20005 29618 29617 0 -1 0 100624 0 0 0 2783 216 0 0 25 0 1 0 864850609 332394496 57008 4294967295 134512640 135726644 3221224576 3221164952 134784091 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 81151 57008 300 300 0 80851 0
vsize: 324604
[startup+40.0018 s]
Raw data (loadavg): 0.92 0.94 0.90 2/55 20008
Raw data (stat): 20006 (pb2sat) R 20005 29618 29617 0 -1 0 115641 0 0 0 3745 253 0 0 25 0 1 0 864850609 346599424 71788 4294967295 134512640 135726644 3221224576 3221222888 134761841 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 84619 71788 300 300 0 84319 0
vsize: 338476
[startup+50.0023 s]
Raw data (loadavg): 0.93 0.94 0.90 2/55 20008
Raw data (stat): 20006 (pb2sat) R 20005 29618 29617 0 -1 0 115644 0 0 0 4742 255 0 0 25 0 1 0 864850609 339496960 70057 4294967295 134512640 135726644 3221224576 3221223072 134743955 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 82885 70057 300 300 0 82585 0
vsize: 331540
[startup+60.0025 s]
Raw data (loadavg): 0.94 0.95 0.90 2/55 20008
Raw data (stat): 20006 (pb2sat) R 20005 29618 29617 0 -1 0 115644 0 0 0 5741 257 0 0 25 0 1 0 864850609 339496960 70057 4294967295 134512640 135726644 3221224576 3221223072 134744004 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 82885 70057 300 300 0 82585 0
vsize: 331540
[startup+70.0034 s]
Raw data (loadavg): 0.95 0.95 0.91 2/55 20010
Raw data (stat): 20006 (pb2sat) R 20005 29618 29617 0 -1 0 115645 0 0 0 6740 258 0 0 25 0 1 0 864850609 339496960 70058 4294967295 134512640 135726644 3221224576 3221223072 134743980 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 82885 70058 300 300 0 82585 0
vsize: 331540
[startup+80.004 s]
Raw data (loadavg): 0.96 0.95 0.91 2/55 20010
Raw data (stat): 20006 (pb2sat) R 20005 29618 29617 0 -1 0 115645 0 0 0 7739 259 0 0 25 0 1 0 864850609 339496960 70058 4294967295 134512640 135726644 3221224576 3221223072 134744063 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 82885 70058 300 300 0 82585 0
vsize: 331540
[startup+90.0045 s]
Raw data (loadavg): 0.96 0.95 0.91 2/55 20010
Raw data (stat): 20006 (pb2sat) R 20005 29618 29617 0 -1 0 115657 0 0 0 8738 260 0 0 25 0 1 0 864850609 339496960 70070 4294967295 134512640 135726644 3221224576 3221223072 134743955 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 82885 70070 300 300 0 82585 0
vsize: 331540
[startup+100.005 s]
Raw data (loadavg): 0.97 0.95 0.91 2/55 20010
Raw data (stat): 20006 (pb2sat) R 20005 29618 29617 0 -1 0 119399 0 0 0 9729 269 0 0 25 0 1 0 864850609 341598208 70344 4294967295 134512640 135726644 3221224576 3221223152 134737974 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 83398 70344 300 300 0 83098 0
vsize: 333592
[startup+110.006 s]
Raw data (loadavg): 0.97 0.95 0.91 2/55 20010
Raw data (stat): 20006 (pb2sat) R 20005 29618 29617 0 -1 0 124601 0 0 0 10714 283 0 0 25 0 1 0 864850609 341598208 70344 4294967295 134512640 135726644 3221224576 3221223120 134746064 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 83398 70344 300 300 0 83098 0
vsize: 333592
[startup+120.007 s]
Raw data (loadavg): 0.98 0.95 0.91 2/55 20010
Raw data (stat): 20006 (pb2sat) R 20005 29618 29617 0 -1 0 129804 0 0 0 11702 295 0 0 25 0 1 0 864850609 348700672 72079 4294967295 134512640 135726644 3221224576 3221222888 134761841 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 85132 72079 300 300 0 84832 0
vsize: 340528
[startup+130.008 s]
Raw data (loadavg): 0.98 0.95 0.91 2/55 20012
Raw data (stat): 20006 (pb2sat) R 20005 29618 29617 0 -1 0 133272 0 0 0 12692 304 0 0 25 0 1 0 864850609 341598208 70345 4294967295 134512640 135726644 3221224576 3221223296 134736256 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 83398 70345 300 300 0 83098 0
vsize: 333592
[startup+140.009 s]
Raw data (loadavg): 0.98 0.95 0.91 2/55 20012
Raw data (stat): 20006 (pb2sat) R 20005 29618 29617 0 -1 0 138476 0 0 0 13681 316 0 0 25 0 1 0 864850609 348700672 72081 4294967295 134512640 135726644 3221224576 3221222872 134761853 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 85132 72081 300 300 0 84832 0
vsize: 340528
[startup+150.01 s]
Raw data (loadavg): 0.98 0.95 0.91 2/55 20012
Raw data (stat): 20006 (pb2sat) R 20005 29618 29617 0 -1 0 141944 0 0 0 14673 324 0 0 25 0 1 0 864850609 341598208 70347 4294967295 134512640 135726644 3221224576 3221223152 134737977 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 83398 70347 300 300 0 83098 0
vsize: 333592
[startup+160.011 s]
Raw data (loadavg): 0.99 0.96 0.91 2/55 20012
Raw data (stat): 20006 (pb2sat) R 20005 29618 29617 0 -1 0 147146 0 0 0 15662 335 0 0 25 0 1 0 864850609 341598208 70347 4294967295 134512640 135726644 3221224576 3221223120 134746064 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 83398 70347 300 300 0 83098 0
vsize: 333592
[startup+170.011 s]
Raw data (loadavg): 0.99 0.96 0.91 2/55 20012
Raw data (stat): 20006 (pb2sat) R 20005 29618 29617 0 -1 0 152349 0 0 0 16649 347 0 0 25 0 1 0 864850609 348700672 72082 4294967295 134512640 135726644 3221224576 3221222892 134761854 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 85132 72082 300 300 0 84832 0
vsize: 340528
[startup+180.013 s]
Raw data (loadavg): 0.99 0.96 0.91 2/55 20012
Raw data (stat): 20006 (pb2sat) R 20005 29618 29617 0 -1 0 155817 0 0 0 17641 356 0 0 25 0 1 0 864850609 341598208 70348 4294967295 134512640 135726644 3221224576 3221223296 134736256 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 83398 70348 300 300 0 83098 0
vsize: 333592
[startup+190.013 s]
Raw data (loadavg): 0.99 0.96 0.91 2/55 20014
Raw data (stat): 20006 (pb2sat) R 20005 29618 29617 0 -1 0 161019 0 0 0 18628 369 0 0 25 0 1 0 864850609 348700672 72082 4294967295 134512640 135726644 3221224576 3221222896 134765544 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 85132 72082 300 300 0 84832 0
vsize: 340528
[startup+200.013 s]
Raw data (loadavg): 0.99 0.96 0.91 2/55 20014
Raw data (stat): 20006 (pb2sat) R 20005 29618 29617 0 -1 0 165018 0 0 0 19617 380 0 0 25 0 1 0 864850609 348700672 70879 4294967295 134512640 135726644 3221224576 3221223072 134763605 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 85132 70886 300 300 0 84832 0
vsize: 340528
[startup+210.014 s]
Raw data (loadavg): 0.99 0.96 0.91 2/55 20014
Raw data (stat): 20006 (pb2sat) R 20005 29618 29617 0 -1 0 169689 0 0 0 20607 391 0 0 25 0 1 0 864850609 341598208 70348 4294967295 134512640 135726644 3221224576 3221223120 134746052 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 83398 70348 300 300 0 83098 0
vsize: 333592
[startup+220.014 s]
Raw data (loadavg): 0.99 0.96 0.91 2/55 20014
Raw data (stat): 20006 (pb2sat) R 20005 29618 29617 0 -1 0 174891 0 0 0 21594 404 0 0 25 0 1 0 864850609 348700672 72082 4294967295 134512640 135726644 3221224576 3221222912 134765513 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 85132 72082 300 300 0 84832 0
vsize: 340528
[startup+230.014 s]
Raw data (loadavg): 0.99 0.96 0.91 2/55 20014
Raw data (stat): 20006 (pb2sat) R 20005 29618 29617 0 -1 0 178359 0 0 0 22585 413 0 0 25 0 1 0 864850609 341598208 70348 4294967295 134512640 135726644 3221224576 3221223296 134736256 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 83398 70348 300 300 0 83098 0
vsize: 333592
[startup+232.127 s]
Raw data (loadavg): 0.99 0.96 0.91 1/54 20014
Raw data (stat): 20006 (pb2sat) R 20005 29618 29617 0 -1 0 178359 0 0 0 22585 413 0 0 25 0 1 0 864850609 341598208 70348 4294967295 134512640 135726644 3221224576 3221223296 134736256 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 83398 70348 300 300 0 83098 0
vsize: 0

Child status: 20
Real time (s): 232.126
CPU time (s): 232.098
CPU user time (s): 227.825
CPU system time (s): 4.27235
CPU usage (%): 99.9876
Max. virtual memory (Kb): 340528
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####