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/www.csit.fsu.edu/~burkardt/datasets/mps/normalized-mps-v2-13-7-testprob.opb
MD5SUM3911b50f214e8d499e3836f4f58df69b
Bench Categoryoptimization, medium integers (OPTMEDINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 9443456
Optimality of the best value was proved NO
Number of terms in the objective function 40
Biggest coefficient in the objective function 9437184
Number of bits for the biggest coefficient in the objective function 24
Sum of the numbers in the objective function 18877426
Number of bits of the sum of numbers in the objective function 25
Biggest number in a constraint 9437184
Number of bits of the biggest number in a constraint 24
Biggest sum of numbers in a constraint 18877426
Number of bits of the biggest sum of numbers25
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.004998
Number of variables40
Total number of constraints5
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 constraints5
Minimum length of a constraint9
Maximum length of a constraint31

Trace number 14071 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc27 THE 2005-04-20 23:10:03 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=20403 boxname=wulflinc27 idbench=1570 idsolver=6 numberseed=0
MD5SUM SOLVER: 2225cba0d9b2c30e235f6cafc823d7ac  /oldhome/oroussel/solvers/PBS4
MD5SUM BENCH:  3911b50f214e8d499e3836f4f58df69b  /oldhome/oroussel/tmp/wulflinc27/normalized-mps-v2-13-7-testprob.opb
REAL COMMAND:  PBS4 /oldhome/oroussel/tmp/wulflinc27/normalized-mps-v2-13-7-testprob.opb
IDLAUNCH: 20403
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.169
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		: 451.169
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:        776704 kB
Buffers:         33616 kB
Cached:         191940 kB
SwapCached:        136 kB
Active:         106876 kB
Inactive:       121080 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        776452 kB
SwapTotal:     2097892 kB
SwapFree:      2097324 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6220 kB
Slab:            24288 kB
Committed_AS:    63452 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-04-20 23:10:03 (client local time) WITH STATUS 30 IN 0.004998 SECONDS
stats: 20403 0 0.004998 30
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c PBS v4 by Bashar Al-Rawi & Fadi Aloul
c Solving /oldhome/oroussel/tmp/wulflinc27/normalized-mps-v2-13-7-testprob.opb ......
c The optimum solution is:9443456
s OPTIMUM FOUND
v -X1_bit0 -X1_bit1 X1_bit2 -X1_bit_1 -X1_bit_2 -X1_bit_3 -X1_bit_4 -X1_bit_5 -X1_bit_6 -X1_bit_7 -X2_bit0 -X2_bit1 -X2_bit_1 -X2_bit_2 -X2_bit_3 -X2_bit_4 -X2_bit_5 -X2_bit_6 -X2_bit_7 X3_bit0 -X3_bit1 -X3_bit10 -X3_bit11 -X3_bit12 X3_bit13 X3_bit2 -X3_bit3 -X3_bit4 -X3_bit5 -X3_bit6 -X3_bit7 -X3_bit8 -X3_bit9 -X3_bit_1 -X3_bit_2 -X3_bit_3 -X3_bit_4 -X3_bit_5 -X3_bit_6 -X3_bit_7 
c Done, CPU Time=0.001
#### 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): 0.92 0.98 0.96 2/54 6105
Raw data (stat): 6105 (runsolver) R 6104 18865 18864 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 540287317 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+0.011011 s]
Raw data (loadavg): 0.92 0.98 0.96 1/53 6105
Raw data (stat): 6105 (runsolver) R 6104 18865 18864 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 540287317 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: 0

Child status: 30
Real time (s): 0.010768
CPU time (s): 0.004998
CPU user time (s): 0.002999
CPU system time (s): 0.001999
CPU usage (%): 46.4153
Max. virtual memory (Kb): 1028
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
Verifier:	OK	9443456
#### END VERIFIER DATA ####