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/submitted/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 NO
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 benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.626903
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 24422

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc31 THE 2005-05-10 07:50:55 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=2305 boxname=wulflinc31 idbench=257 idsolver=1 numberseed=0
MD5SUM SOLVER: e973bb179fd0e01ec8c7277096f1c3ef  /oldhome/oroussel/solvers/bsolo_lpr
MD5SUM BENCH:  4a7e7b149407cd13657a201380066d1b  /oldhome/oroussel/tmp/wulflinc31/normalized-circ4_3.opb
REAL COMMAND:  bsolo_lpr /oldhome/oroussel/tmp/wulflinc31/normalized-circ4_3.opb
IDLAUNCH: 2305
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.153
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		: 451.153
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	: 901.12

/proc/meminfo:
MemTotal:      1034660 kB
MemFree:        297912 kB
Buffers:         46204 kB
Cached:         656748 kB
SwapCached:        644 kB
Active:         306548 kB
Inactive:       398724 kB
HighTotal:      131008 kB
HighFree:        33824 kB
LowTotal:       903652 kB
LowFree:        264088 kB
SwapTotal:     2097892 kB
SwapFree:      2096612 kB
Dirty:              36 kB
Writeback:           0 kB
Mapped:           5608 kB
Slab:            25752 kB
Committed_AS:    63652 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-10 07:51:44 (client local time) WITH STATUS 30 IN 48.1887 SECONDS
stats: 2305 0 48.1887 30
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c INFO: OSL Context initialized.
c Initial problem consists of 144 variables and 764 constraints.
c After prepocess the problem consists of 144 variables and 726 constraints.
c preprocess terminated 0.418 s
c Initial Lower Bound: 16
c Lower Bound Elapsed time: 0.268667
c Not use computed LB before first solution.
c NEW SOLUTION FOUND: 24 @ 1.296
c NEW SOLUTION FOUND: 22 @ 4.821
c NEW SOLUTION FOUND: 20 @ 7.234
s OPTIMUM FOUND
v -v97 -v98 v99 v100 -v101 -v102 -v103 v104 -v105 -v106 -v107 v108 -v109 -v110 v111 v112 v113 -v114 -v115 v116 -v117 -v118 v119 -v120 v121 -v122 -v123 -v124 v125 -v126 -v127 -v128 v129 v130 -v131 -v132 -v133 -v134 v135 -v136 v137 -v138 v139 -v140 -v141 -v142 v143 -v144 -v2 -v18 -v34 -v50 v66 -v82 -v3 -v19 -v35 v51 -v67 -v83 -v4 -v20 v36 -v52 -v68 -v84 v5 -v21 -v37 -v53 -v69 -v85 -v7 -v23 -v39 -v55 -v71 v87 -v8 v24 -v40 -v56 -v72 -v88 -v9 v25 -v41 -v57 -v73 -v89 -v10 -v26 v42 -v58 -v74 -v90 v12 -v28 -v44 -v60 -v76 -v92 -v13 -v29 -v45 -v61 -v77 v93 -v14 -v30 -v46 v62 -v78 -v94 -v15 -v31 -v47 -v63 v79 -v95 -v6 -v22 v38 v54 v70 -v86 -v11 -v27 -v43 v59 v75 v91 v16 v32 v48 -v64 -v80 -v96 v1 v17 -v33 -v49 -v65 v81 
c Exit Code: 30
c Total time: 48.161 s
#### 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): 0.91 0.97 0.92 2/54 8388
Raw data (stat): 8388 (runsolver) R 8387 7876 7672 0 -1 64 5 0 0 0 0 0 0 0 19 0 1 0 707580678 1056768 100 4294967295 134512640 135381576 3221221696 3221216916 135158418 0 2147483391 1 90112 0 0 0 17 1 0 0
Raw data (statm): 258 100 215 215 0 43 0
vsize: 1032
[startup+9.99989 s]
Raw data (loadavg): 0.93 0.97 0.92 2/54 8388
Raw data (stat): 8388 (bsolo_lpr) R 8387 7876 7672 0 -1 0 4935 0 0 0 981 14 0 0 25 0 1 0 707580678 6877184 900 4294967295 134512640 134714508 3221221792 3221217824 1075965232 0 0 1 0 0 0 0 17 1 0 0
Raw data (statm): 1679 900 1111 63 0 1616 0
vsize: 6716
[startup+20.0012 s]
Raw data (loadavg): 0.94 0.97 0.92 2/54 8388
Raw data (stat): 8388 (bsolo_lpr) R 8387 7876 7672 0 -1 0 9293 0 0 0 1970 25 0 0 25 0 1 0 707580678 6258688 854 4294967295 134512640 134714508 3221221792 3221220144 1074153822 0 0 1 0 0 0 0 17 1 0 0
Raw data (statm): 1528 854 1111 63 0 1465 0
vsize: 6112
[startup+30.0018 s]
Raw data (loadavg): 0.95 0.97 0.92 2/54 8388
Raw data (stat): 8388 (bsolo_lpr) R 8387 7876 7672 0 -1 0 13924 0 0 0 2958 37 0 0 25 0 1 0 707580678 6340608 874 4294967295 134512640 134714508 3221221792 3221219704 1074138315 0 0 1 0 0 0 0 17 1 0 0
Raw data (statm): 1548 874 1111 63 0 1485 0
vsize: 6192
[startup+40.0017 s]
Raw data (loadavg): 0.95 0.97 0.92 2/54 8388
Raw data (stat): 8388 (bsolo_lpr) R 8387 7876 7672 0 -1 0 18660 0 0 0 3947 49 0 0 25 0 1 0 707580678 7081984 935 4294967295 134512640 134714508 3221221792 3221218020 1075115127 0 0 1 0 0 0 0 17 1 0 0
Raw data (statm): 1729 935 1111 63 0 1666 0
vsize: 6916
[startup+48.2274 s]
Raw data (loadavg): 0.96 0.97 0.92 1/53 8388
Raw data (stat): 8388 (bsolo_lpr) R 8387 7876 7672 0 -1 0 18660 0 0 0 3947 49 0 0 25 0 1 0 707580678 7081984 935 4294967295 134512640 134714508 3221221792 3221218020 1075115127 0 0 1 0 0 0 0 17 1 0 0
Raw data (statm): 1729 935 1111 63 0 1666 0
vsize: 0

Child status: 30
Real time (s): 48.2268
CPU time (s): 48.1887
CPU user time (s): 47.5938
CPU system time (s): 0.594909
CPU usage (%): 99.9209
Max. virtual memory (Kb): 6916
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
Verifier:	OK	20
#### END VERIFIER DATA ####