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/ftp.netlib.org/lp/data/normalized-mps-v2-13-7-sc205.opb
MD5SUM	8dcd54bb06c18286b7b6d9b86b2fd29c
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	20
Biggest coefficient in the objective function	524288
Number of bits for the biggest coefficient in the objective function	20
Sum of the numbers in the objective function	1048575
Number of bits of the sum of numbers in the objective function	20
Biggest number in a constraint	8388608
Number of bits of the biggest number in a constraint	24
Biggest sum of numbers in a constraint	22020075
Number of bits of the biggest sum of numbers	25
Best result obtained on this benchmark	SAT
Best CPU time to get the best result obtained on this benchmark	9.35658
Number of variables	4060
Total number of constraints	204
Number of constraints which are clauses	0
Number of constraints which are cardinality constraints (but not clauses)	0
Number of constraints which are nor clauses,nor cardinality constraints	204
Minimum length of a constraint	20
Maximum length of a constraint	80

Trace number 35484

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc9 THE 2005-05-28 13:16:29 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24770 boxname=wulflinc9 idbench=1242 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  8dcd54bb06c18286b7b6d9b86b2fd29c  /oldhome/oroussel/tmp/wulflinc9/normalized-mps-v2-13-7-sc205.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc9/normalized-mps-v2-13-7-sc205.opb
IDLAUNCH: 24770
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.242
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		: 451.242
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:        711872 kB
Buffers:         35820 kB
Cached:         263100 kB
SwapCached:        552 kB
Active:          20164 kB
Inactive:       280828 kB
HighTotal:      131008 kB
HighFree:         2492 kB
LowTotal:       903652 kB
LowFree:        709380 kB
SwapTotal:     2097136 kB
SwapFree:      2095648 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5144 kB
Slab:            16160 kB
Committed_AS:    63596 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-28 13:19:25 (client local time) WITH STATUS 20 IN 176.094 SECONDS
stats: 24770 7 176.094 20
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c This solver internally uses Chaff 2004.11.15 Simplified
c running zchaff...
c CONFLICT during preprocess 
c [startup+4.08626 s]  setting bit 19 to 0
c CONFLICT during preprocess 
c [startup+4.40716 s]  setting bit 18 to 0
c CONFLICT during preprocess 
c [startup+4.72617 s]  setting bit 17 to 0
c CONFLICT during preprocess 
c [startup+5.04637 s]  setting bit 16 to 0
c CONFLICT during preprocess 
c [startup+5.36766 s]  setting bit 15 to 0
c CONFLICT during preprocess 
c [startup+5.69008 s]  setting bit 14 to 0
c [startup+18.296 s]  setting bit 13 to 0

Decision: 5196/91712	Time: 4.63929/86400
Decision: 5612/91712	Time: 8.78866/86400
Decision: 5972/91712	Time: 15.7176/86400
Decision: 6139/91712	Time: 21.2038/86400
Decision: 6139/91712	Time: 24.9772/86400
Decision: 6139/91712	Time: 31.0833/86400
Decision: 6142/91712	Time: 37.8552/86400
Decision: 6142/91712	Time: 43.5614/86400c [startup+68.7787 s]  setting bit 12 to 0

Decision: 6135/91712	Time: 5.21721/86400
Decision: 6135/91712	Time: 9.44956/86400
Decision: 6135/91712	Time: 14.6828/86400
Decision: 6141/91712	Time: 20.8698/86400
Decision: 6310/91712	Time: 27.5278/86400
Decision: 6312/91712	Time: 33.4829/86400
Decision: 6312/91712	Time: 39.398/86400c [startup+110.03 s]  setting bit 11 to 0

Decision: 6308/91712	Time: 5.83711/86400
Decision: 6308/91712	Time: 11.4433/86400
Decision: 6308/91712	Time: 16.6025/86400
Decision: 6394/91712	Time: 26.244/86400c [startup+143.64 s]  setting bit 10 to 0
c [startup+164.163 s]  setting bit 9 to 0
c [startup+170.901 s]  setting bit 8 to 0
c [startup+172.259 s]  setting bit 7 to 0
c [startup+172.92 s]  setting bit 6 to 0
c [startup+173.462 s]  setting bit 5 to 0
c [startup+173.988 s]  setting bit 4 to 0
c [startup+174.462 s]  setting bit 3 to 0
c [startup+174.936 s]  setting bit 2 to 0
c [startup+175.411 s]  setting bit 1 to 0
c [startup+175.885 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): 0.92 0.98 0.91 2/54 19705
Raw data (stat): 19705 (runsolver) R 19704 3944 3943 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 806869811 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+9.99955 s]
Raw data (loadavg): 0.93 0.98 0.91 2/54 19705
Raw data (stat): 19705 (pb2sat) R 19704 3944 3943 0 -1 0 13287 0 0 0 966 32 0 0 25 0 1 0 806869811 39739392 6568 4294967295 134512640 135726644 3221224592 3221223088 134744235 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 9702 6568 300 300 0 9402 0
vsize: 38808
[startup+20.0003 s]
Raw data (loadavg): 0.94 0.98 0.91 2/54 19705
Raw data (stat): 19705 (pb2sat) R 19704 3944 3943 0 -1 0 13714 0 0 0 1962 36 0 0 25 0 1 0 806869811 40693760 6815 4294967295 134512640 135726644 3221224592 3221223280 134744858 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 9935 6815 300 300 0 9635 0
vsize: 39740
[startup+30.0008 s]
Raw data (loadavg): 0.95 0.98 0.91 2/54 19705
Raw data (stat): 19705 (pb2sat) R 19704 3944 3943 0 -1 0 14168 0 0 0 2960 38 0 0 25 0 1 0 806869811 40828928 6909 4294967295 134512640 135726644 3221224592 3221223184 134759980 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 9968 6909 300 300 0 9668 0
vsize: 39872
[startup+40.0008 s]
Raw data (loadavg): 0.96 0.98 0.91 2/54 19705
Raw data (stat): 19705 (pb2sat) R 19704 3944 3943 0 -1 0 14634 0 0 0 3957 40 0 0 25 0 1 0 806869811 40960000 7015 4294967295 134512640 135726644 3221224592 3221222912 134728892 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 10000 7015 300 300 0 9700 0
vsize: 40000
[startup+50.0022 s]
Raw data (loadavg): 0.96 0.98 0.91 2/54 19705
Raw data (stat): 19705 (pb2sat) R 19704 3944 3943 0 -1 0 15117 0 0 0 4956 42 0 0 25 0 1 0 806869811 41095168 7138 4294967295 134512640 135726644 3221224592 3221223088 134743961 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 10033 7138 300 300 0 9733 0
vsize: 40132
[startup+60.0014 s]
Raw data (loadavg): 0.97 0.98 0.91 2/54 19705
Raw data (stat): 19705 (pb2sat) R 19704 3944 3943 0 -1 0 15407 0 0 0 5954 43 0 0 25 0 1 0 806869811 41283584 7248 4294967295 134512640 135726644 3221224592 3221223248 134731175 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 10079 7248 300 300 0 9779 0
vsize: 40316
[startup+70.0021 s]
Raw data (loadavg): 0.97 0.98 0.91 2/54 19705
Raw data (stat): 19705 (pb2sat) R 19704 3944 3943 0 -1 0 15928 0 0 0 6953 45 0 0 25 0 1 0 806869811 41590784 7409 4294967295 134512640 135726644 3221224592 3221223088 134744123 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 10154 7409 300 300 0 9854 0
vsize: 40616
[startup+80.0022 s]
Raw data (loadavg): 0.98 0.98 0.91 2/54 19705
Raw data (stat): 19705 (pb2sat) R 19704 3944 3943 0 -1 0 16180 0 0 0 7951 45 0 0 25 0 1 0 806869811 41590784 7481 4294967295 134512640 135726644 3221224592 3221223280 134744861 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 10154 7481 300 300 0 9854 0
vsize: 40616
[startup+90.0029 s]
Raw data (loadavg): 0.98 0.98 0.91 2/54 19705
Raw data (stat): 19705 (pb2sat) R 19704 3944 3943 0 -1 0 16487 0 0 0 8951 46 0 0 25 0 1 0 806869811 41771008 7608 4294967295 134512640 135726644 3221224592 3221223088 134744120 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 10198 7608 300 300 0 9898 0
vsize: 40792
[startup+100.002 s]
Raw data (loadavg): 0.98 0.98 0.91 2/54 19705
Raw data (stat): 19705 (pb2sat) R 19704 3944 3943 0 -1 0 16788 0 0 0 9950 47 0 0 25 0 1 0 806869811 41934848 7729 4294967295 134512640 135726644 3221224592 3221223088 134744011 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 10238 7729 300 300 0 9938 0
vsize: 40952
[startup+110.003 s]
Raw data (loadavg): 0.98 0.98 0.91 2/54 19705
Raw data (stat): 19705 (pb2sat) R 19704 3944 3943 0 -1 0 17251 0 0 0 10947 50 0 0 25 0 1 0 806869811 41934848 7832 4294967295 134512640 135726644 3221224592 3221223312 134736256 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 10238 7832 300 300 0 9938 0
vsize: 40952
[startup+120.003 s]
Raw data (loadavg): 0.99 0.98 0.91 2/54 19705
Raw data (stat): 19705 (pb2sat) R 19704 3944 3943 0 -1 0 17736 0 0 0 11945 51 0 0 25 0 1 0 806869811 42070016 7957 4294967295 134512640 135726644 3221224592 3221223088 134743955 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 10271 7957 300 300 0 9971 0
vsize: 41084
[startup+130.003 s]
Raw data (loadavg): 0.99 0.98 0.91 2/54 19705
Raw data (stat): 19705 (pb2sat) R 19704 3944 3943 0 -1 0 17871 0 0 0 12944 52 0 0 25 0 1 0 806869811 42213376 8092 4294967295 134512640 135726644 3221224592 3221223088 134743987 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 10306 8092 300 300 0 10006 0
vsize: 41224
[startup+140.009 s]
Raw data (loadavg): 0.99 0.98 0.91 2/54 19705
Raw data (stat): 19705 (pb2sat) R 19704 3944 3943 0 -1 0 18195 0 0 0 13944 53 0 0 25 0 1 0 806869811 42409984 8236 4294967295 134512640 135726644 3221224592 3221223088 134744126 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 10354 8236 300 300 0 10054 0
vsize: 41416
[startup+150.118 s]
Raw data (loadavg): 0.99 0.98 0.91 2/54 19705
Raw data (stat): 19705 (pb2sat) R 19704 3944 3943 0 -1 0 18480 0 0 0 14954 54 0 0 25 0 1 0 806869811 50798592 8341 4294967295 134512640 135726644 3221224592 3221222912 134728934 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 12402 8341 300 300 0 12102 0
vsize: 49608
[startup+160.118 s]
Raw data (loadavg): 0.99 0.98 0.91 2/54 19705
Raw data (stat): 19705 (pb2sat) R 19704 3944 3943 0 -1 0 18584 0 0 0 15954 54 0 0 25 0 1 0 806869811 50798592 8445 4294967295 134512640 135726644 3221224592 3221223088 134744117 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 12402 8445 300 300 0 12102 0
vsize: 49608
[startup+170.118 s]
Raw data (loadavg): 0.99 0.98 0.91 2/54 19705
Raw data (stat): 19705 (pb2sat) R 19704 3944 3943 0 -1 0 18897 0 0 0 16953 56 0 0 25 0 1 0 806869811 50929664 8578 4294967295 134512640 135726644 3221224592 3221223088 134743980 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 12434 8578 300 300 0 12134 0
vsize: 49736
[startup+176.119 s]
Raw data (loadavg): 0.99 0.98 0.91 1/53 19705
Raw data (stat): 19705 (pb2sat) R 19704 3944 3943 0 -1 0 18897 0 0 0 16953 56 0 0 25 0 1 0 806869811 50929664 8578 4294967295 134512640 135726644 3221224592 3221223088 134743980 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 12434 8578 300 300 0 12134 0
vsize: 0

Child status: 20
Real time (s): 176.119
CPU time (s): 176.094
CPU user time (s): 175.487
CPU system time (s): 0.606907
CPU usage (%): 99.9859
Max. virtual memory (Kb): 49736
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####