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/ttp/normalized-circ4_3.opb
MD5SUM4a7e7b149407cd13657a201380066d1b
Bench Categoryoptimization, small integers (OPTSMALLINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 20
Optimality of the best value was proved YES
Number of terms in the objective function 48
Biggest coefficient in the objective function 2
Number of bits for the biggest coefficient in the objective function 2
Sum of the numbers in the objective function 64
Number of bits of the sum of numbers in the objective function 7
Biggest number in a constraint 8
Number of bits of the biggest number in a constraint 4
Biggest sum of numbers in a constraint 64
Number of bits of the biggest sum of numbers7
Best result obtained on this benchmarkOPTIMUM FOUND
Best CPU time to get the best result obtained on this benchmark0.665897
Number of variables144
Total number of constraints704
Number of constraints which are clauses464
Number of constraints which are cardinality constraints (but not clauses)96
Number of constraints which are nor clauses,nor cardinality constraints144
Minimum length of a constraint2
Maximum length of a constraint12

Trace number 9697

Launcher Data

LAUNCH ON wulflinc1 THE 2005-09-23 15:07:54 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8461 boxname=wulflinc1 idbench=257 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  4a7e7b149407cd13657a201380066d1b  /oldhome/oroussel/tmp/wulflinc1/normalized-circ4_3.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc1/normalized-circ4_3.opb
IDLAUNCH: 8461
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.228
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		: 451.228
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:        887652 kB
Buffers:         12588 kB
Cached:         117156 kB
SwapCached:          0 kB
Active:          76488 kB
Inactive:        56116 kB
HighTotal:      131008 kB
HighFree:        17472 kB
LowTotal:       903652 kB
LowFree:        870180 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6984 kB
Slab:             8796 kB
Committed_AS:    63656 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 15:08:07 (client local time) WITH STATUS 30 IN 12.2941 SECONDS
stats: 8461 0 12.2941 30

Solver Data

c This solver internally uses Chaff 2004.11.15 Simplified
c running zchaff...
c got solution with objective value: 20
c small objective detected
c CONFLICT during preprocess 
c [startup+0.372773 s]  setting bit 6 to 0
c CONFLICT during preprocess 
c [startup+0.378453 s]  setting bit 5 to 0
c [startup+0.397513 s]  setting bit 4 to 0
c [startup+1.57397 s]  setting bit 3 to 0
c [startup+3.61841 s]  setting bit 2 to 0
c [startup+6.21333 s]  setting bit 1 to 0
c [startup+9.47407 s]  setting bit 0 to 0
s OPTIMUM FOUND
v v1 -v10 -v100 v101 -v102 -v103 -v104 v105 v106 -v107 -v108 v109 v11 -v110 -v111 v112 -v113 v114 -v115 v116 -v117 -v118 -v119 -v12 v120 v121 -v122 -v123 -v124 -v125 v126 v127 -v128 -v129 -v13 -v130 -v131 v132 -v133 -v134 v135 v136 -v137 -v138 -v139 -v14 v140 -v141 -v142 -v143 v144 v15 -v16 v17 -v18 -v19 -v2 -v20 -v21 v22 -v23 -v24 v25 -v26 -v27 -v28 -v29 -v3 v30 -v31 -v32 v33 -v34 -v35 -v36 -v37 v38 -v39 -v4 -v40 -v41 v42 -v43 -v44 v45 -v46 -v47 -v48 -v49 v5 v50 -v51 -v52 -v53 v54 -v55 -v56 -v57 -v58 -v59 -v6 v60 -v61 -v62 -v63 v64 -v65 -v66 v67 -v68 -v69 -v7 -v70 -v71 v72 -v73 -v74 v75 -v76 -v77 -v78 -v79 -v8 v80 -v81 -v82 -v83 v84 -v85 -v86 v87 -v88 -v89 -v9 -v90 v91 -v92 -v93 -v94 -v95 v96 v97 -v98 -v99

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/8676/stat): 8676 (pb2sat) R 8675 8676 4704 0 -1 0 18 0 0 0 0 0 0 0 24 0 1 0 21165355 1527808 2 4294967295 134512640 135987407 3221224576 3221224576 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/8676/statm): 373 2 364 364 0 9 0
[pid=8676] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc1/normalized-circ4_3.opb

[startup+10.0019 s]
Raw data (loadavg): 0.87 0.97 0.97 2/55 8676
Raw data (/proc/8676/stat): 8676 (pb2sat) R 8675 8676 4704 0 -1 0 929 0 0 0 963 13 0 0 25 0 1 0 21165355 5222400 811 4294967295 134512640 135987407 3221224576 3221223120 134811775 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8676/statm): 1275 811 364 364 0 911 0
[pid=8676] vsize: 5100
Current children cumulated CPU time (s) 9.76
Current children cumulated vsize (Kb) 5100
One traced child (pid=8676) exited with status: 30
All traced children have exited ! Game is over.

Child status: 30
Real time (s): 12.5702
CPU time (s): 12.2941
CPU user time (s): 12.1422
CPU system time (s): 0.151976
CPU usage (%): 97.8041
Max. virtual memory (cumulated for all children) (Kb): 5100

Verifier Data

Verifier:	OK	20