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:
  1. 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.
  2. SOLVER DATA
    This is the output of the solver (stdout and stderr).
  3. 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.
  4. 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

Namenormalized-opb/mps-v2-13-7/plato.asu.edu/pub/fctp/normalized-mps-v2-13-7-ran13x13.opb
MD5SUM688d61d0de54e028c8c4910e094a132c
Bench Categoryoptimization, medium integers (OPTMEDINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 893343
Optimality of the best value was proved NO
Number of terms in the objective function 3549
Biggest coefficient in the objective function 5242880
Number of bits for the biggest coefficient in the objective function 23
Sum of the numbers in the objective function 949933178
Number of bits of the sum of numbers in the objective function 30
Biggest number in a constraint 5242880
Number of bits of the biggest number in a constraint 23
Biggest sum of numbers in a constraint 949933178
Number of bits of the biggest sum of numbers30
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1175.05
Number of variables3549
Total number of constraints195
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints195
Minimum length of a constraint21
Maximum length of a constraint260

Trace number 14749 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc2 THE 2005-04-21 01:24:31 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=19285 boxname=wulflinc2 idbench=1484 idsolver=6 numberseed=0
MD5SUM SOLVER: 2225cba0d9b2c30e235f6cafc823d7ac  /oldhome/oroussel/solvers/PBS4
MD5SUM BENCH:  688d61d0de54e028c8c4910e094a132c  /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-13-7-ran13x13.opb
REAL COMMAND:  PBS4 /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-13-7-ran13x13.opb
IDLAUNCH: 19285
/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:        630268 kB
Buffers:         33148 kB
Cached:         347584 kB
SwapCached:          0 kB
Active:          31756 kB
Inactive:       351768 kB
HighTotal:      131008 kB
HighFree:         7868 kB
LowTotal:       903652 kB
LowFree:        622400 kB
SwapTotal:     2097136 kB
SwapFree:      2096988 kB
Dirty:              40 kB
Writeback:           0 kB
Mapped:           6832 kB
Slab:            15272 kB
Committed_AS:    71768 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-04-21 01:25:35 (client local time) WITH STATUS 20 IN 62.7805 SECONDS
stats: 19285 7 62.7805 20
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c PBS v4 by Bashar Al-Rawi & Fadi Aloul
c Solving /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-13-7-ran13x13.opb ......
s UNSATISFIABLE
c Done, CPU Time=62.1755
#### 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): 0.79 0.92 0.95 2/54 16288
Raw data (stat): 16288 (runsolver) R 16287 20937 20936 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 482877711 1052672 99 4294967295 134512640 135381576 3221224528 3221219776 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+10.0008 s]
Raw data (loadavg): 0.82 0.93 0.95 2/54 16288
Raw data (stat): 16288 (PBS4) R 16287 20937 20936 0 -1 0 700 0 0 0 993 5 0 0 25 0 1 0 482877711 3899392 612 4294967295 134512640 135450300 3221224624 3221223232 134537621 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 952 612 231 231 0 721 0
vsize: 3808
[startup+20.0009 s]
Raw data (loadavg): 0.85 0.93 0.95 2/54 16288
Raw data (stat): 16288 (PBS4) R 16287 20937 20936 0 -1 0 956 0 0 0 1991 7 0 0 25 0 1 0 482877711 4947968 868 4294967295 134512640 135450300 3221224624 3221223232 134537654 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 1208 868 231 231 0 977 0
vsize: 4832
[startup+30.0019 s]
Raw data (loadavg): 0.87 0.93 0.95 2/54 16288
Raw data (stat): 16288 (PBS4) R 16287 20937 20936 0 -1 0 1260 0 0 0 2988 10 0 0 25 0 1 0 482877711 7184384 1172 4294967295 134512640 135450300 3221224624 3221222976 134533236 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 1754 1172 231 231 0 1523 0
vsize: 7016
[startup+40.0017 s]
Raw data (loadavg): 0.89 0.93 0.95 2/54 16288
Raw data (stat): 16288 (PBS4) R 16287 20937 20936 0 -1 0 2286 0 0 0 3984 14 0 0 25 0 1 0 482877711 11378688 2198 4294967295 134512640 135450300 3221224624 3221223500 135126769 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 2778 2198 231 231 0 2547 0
vsize: 11112
[startup+50.0021 s]
Raw data (loadavg): 0.91 0.93 0.95 2/54 16288
Raw data (stat): 16288 (PBS4) R 16287 20937 20936 0 -1 0 3653 0 0 0 4980 18 0 0 25 0 1 0 482877711 20107264 3565 4294967295 134512640 135450300 3221224624 3221223360 134537968 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 4909 3565 231 231 0 4678 0
vsize: 19636
[startup+60.0021 s]
Raw data (loadavg): 0.92 0.93 0.95 2/54 16288
Raw data (stat): 16288 (PBS4) R 16287 20937 20936 0 -1 0 4446 0 0 0 5977 21 0 0 25 0 1 0 482877711 20402176 4358 4294967295 134512640 135450300 3221224624 3221223344 134535815 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 4981 4358 231 231 0 4750 0
vsize: 19924
[startup+62.791 s]
Raw data (loadavg): 0.92 0.93 0.95 1/53 16288
Raw data (stat): 16288 (PBS4) R 16287 20937 20936 0 -1 0 4446 0 0 0 5977 21 0 0 25 0 1 0 482877711 20402176 4358 4294967295 134512640 135450300 3221224624 3221223344 134535815 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 4981 4358 231 231 0 4750 0
vsize: 0

Child status: 20
Real time (s): 62.7904
CPU time (s): 62.7805
CPU user time (s): 62.5465
CPU system time (s): 0.233964
CPU usage (%): 99.9842
Max. virtual memory (Kb): 19924
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####