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-misc05.opb
MD5SUM	5e97a4ad772c87cdf15a611dd5b54048
Bench Category	optimization, big integers (OPTBIGINT)
Has Objective Function	YES
Satisfiable	YES
(Un)Satisfiability was proved	YES
Best value of the objective function	1076796928
Optimality of the best value was proved	NO
Number of terms in the objective function	31
Biggest coefficient in the objective function	1073741824
Number of bits for the biggest coefficient in the objective function	31
Sum of the numbers in the objective function	2147483647
Number of bits of the sum of numbers in the objective function	31
Biggest number in a constraint	5368709120
Number of bits of the biggest number in a constraint	33
Biggest sum of numbers in a constraint	83751857084
Number of bits of the biggest sum of numbers	37
Best result obtained on this benchmark	SAT
Best CPU time to get the best result obtained on this benchmark	952.576
Number of variables	1940
Total number of constraints	374
Number of constraints which are clauses	155
Number of constraints which are cardinality constraints (but not clauses)	82
Number of constraints which are nor clauses,nor cardinality constraints	137
Minimum length of a constraint	1
Maximum length of a constraint	451

Trace number 34528

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc9 THE 2005-05-27 23:53:26 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=11994 boxname=wulflinc9 idbench=923 idsolver=8 numberseed=0
MD5SUM SOLVER: 4b637b3b6117f2add1a6288e91336322  /oldhome/oroussel/solvers/vallstSAT2005PB.sh
MD5SUM BENCH:  5e97a4ad772c87cdf15a611dd5b54048  /oldhome/oroussel/tmp/wulflinc9/normalized-mps-v2-20-10-misc05.opb
REAL COMMAND:  vallstSAT2005PB.sh /oldhome/oroussel/tmp/wulflinc9/normalized-mps-v2-20-10-misc05.opb 0
IDLAUNCH: 11994
/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:        698588 kB
Buffers:         24492 kB
Cached:         288016 kB
SwapCached:        564 kB
Active:          20500 kB
Inactive:       294096 kB
HighTotal:      131008 kB
HighFree:        58352 kB
LowTotal:       903652 kB
LowFree:        640236 kB
SwapTotal:     2097136 kB
SwapFree:      2095636 kB
Dirty:             160 kB
Writeback:           0 kB
Mapped:           5124 kB
Slab:            15988 kB
Committed_AS:    63600 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-27 23:53:27 (client local time) WITH STATUS 20 IN 0.152976 SECONDS
stats: 11994 7 0.152976 20
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
1:
result: proof of false found (0)
times:
0m0.019s 0m0.009s
0m0.058s 0m0.012s
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 0.95 0.97 2/54 13450
Raw data (stat): 13450 (runsolver) R 13449 3944 3943 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 802050893 884736 94 4294967295 134512640 135332820 3221224448 3221219612 135092226 0 2147483391 7 90112 0 0 0 17 1 0 0
Raw data (statm): 216 94 205 205 0 11 0
vsize: 864
[startup+0.491905 s]
Raw data (loadavg): 0.84 0.95 0.97 1/53 13457
Raw data (stat): 13450 (runsolver) R 13449 3944 3943 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 802050893 884736 94 4294967295 134512640 135332820 3221224448 3221219612 135092226 0 2147483391 7 90112 0 0 0 17 1 0 0
Raw data (statm): 216 94 205 205 0 11 0
vsize: 0

Child status: 20
Real time (s): 0.491675
CPU time (s): 0.152976
CPU user time (s): 0.101984
CPU system time (s): 0.050992
CPU usage (%): 31.1132
Max. virtual memory (Kb): 864
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####