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).
    Note that some very long lines in this section may be truncated by your web browser !
  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

Namesubmitted/manquinho/synthesis-ptl-cmos-circuits/normalized-C17.opb
MD5SUM4b3ab32e1f00bf5464220d8082457829
Bench Categoryoptimization, small integers (OPTSMALLINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 260
Optimality of the best value was proved YES
Number of terms in the objective function 15
Biggest coefficient in the objective function 61
Number of bits for the biggest coefficient in the objective function 6
Sum of the numbers in the objective function 588
Number of bits of the sum of numbers in the objective function 10
Biggest number in a constraint 61
Number of bits of the biggest number in a constraint 6
Biggest sum of numbers in a constraint 588
Number of bits of the biggest sum of numbers10
Best result obtained on this benchmarkOPTIMUM FOUND
Best CPU time to get the best result obtained on this benchmark0.005998
Number of variables15
Total number of constraints24
Number of constraints which are clauses24
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint1
Maximum length of a constraint5

Trace number 2359

Launcher Data

LAUNCH ON wulflinc12 THE 2005-09-18 19:31:16 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=3763 boxname=wulflinc12 idbench=247 idsolver=4 numberseed=0
MD5SUM SOLVER: 21c3ffd7205c96d5f0784fd273b92938  /oldhome/oroussel/solvers/PBS4
MD5SUM BENCH:  4b3ab32e1f00bf5464220d8082457829  /oldhome/oroussel/tmp/wulflinc12/normalized-C17.opb
REAL COMMAND:  PBS4 /oldhome/oroussel/tmp/wulflinc12/normalized-C17.opb
IDLAUNCH: 3763
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.091
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		: 451.091
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:        898520 kB
Buffers:         38692 kB
Cached:          57460 kB
SwapCached:        544 kB
Active:          66928 kB
Inactive:        41408 kB
HighTotal:      131008 kB
HighFree:        73556 kB
LowTotal:       903652 kB
LowFree:        824964 kB
SwapTotal:     2097136 kB
SwapFree:      2096072 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5884 kB
Slab:            22200 kB
Committed_AS:    64128 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-18 19:31:16 (client local time) WITH STATUS 30 IN 0.005998 SECONDS
stats: 3763 0 0.005998 30

Solver Data

c PBS v4 by Bashar Al-Rawi & Fadi Aloul
c Solving /oldhome/oroussel/tmp/wulflinc12/normalized-C17.opb ......
c The optimum solution is:260
s OPTIMUM FOUND
v -x1 -x10 x11 x12 -x13 x14 -x15 -x2 -x3 -x4 -x5 x6 x7 x8 -x9 
c Done, CPU Time=0.001

Watcher Data

Enforcing CPU limit (will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime (will send SIGXCPU) limit: 1230 seconds
Enforcing Stack size limit: 67108864 bytes
Enforcing memory limit (will send SIGTERM then SIGKILL): 921600 Kb
Enforcing VSIZE limit: 994918400 bytes
Current StackSize limit: 67108864 bytes
Raw data (/proc/25475/stat): 25475 (PBS4) R 25474 25475 8263 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 1785553953 978944 2 4294967295 134512640 135450776 3221224576 3221224576 134512960 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/25475/statm): 239 2 232 232 0 7 0
[pid=25475] vsize: 956
open syscall for file /dev/null
open syscall for file /oldhome/oroussel/tmp/wulflinc12/normalized-C17.opb
open syscall for file /oldhome/oroussel/tmp/wulflinc12/normalized-C17.opb
One traced child (pid=25475) exited with status: 30
All traced children have exited ! Game is over.

Child status: 30
Real time (s): 0.015125
CPU time (s): 0.005998
CPU user time (s): 0.001999
CPU system time (s): 0.003999
CPU usage (%): 39.6562
Max. virtual memory (cumulated for all children) (Kb): 0

Verifier Data

Verifier:	OK	260