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:
-
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.
-
SOLVER DATA
This is the output of the solver (stdout and stderr).
-
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.
-
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
Name | normalized-opb/submitted/manquinho/ttp/normalized-data4_3.opb |
MD5SUM | c35974bed5d553709b7d7ce92d35093a |
Bench Category | optimization, small integers (OPTSMALLINT) |
Has Objective Function | YES |
Satisfiable | YES |
(Un)Satisfiability was proved | YES |
Best value of the objective function | 8276 |
Optimality of the best value was proved | NO |
Number of terms in the objective function | 48 |
Biggest coefficient in the objective function | 929 |
Number of bits for the biggest coefficient in the objective function | 10 |
Sum of the numbers in the objective function | 25088 |
Number of bits of the sum of numbers in the objective function | 15 |
Biggest number in a constraint | 929 |
Number of bits of the biggest number in a constraint | 10 |
Biggest sum of numbers in a constraint | 25088 |
Number of bits of the biggest sum of numbers | 15 |
Best result obtained on this benchmark | SAT |
Best CPU time to get the best result obtained on this benchmark | 0.784879 |
Number of variables | 144 |
Total number of constraints | 704 |
Number of constraints which are clauses | 464 |
Number of constraints which are cardinality constraints (but not clauses) | 96 |
Number of constraints which are nor clauses,nor cardinality constraints | 144 |
Minimum length of a constraint | 2 |
Maximum length of a constraint | 12 |
Trace number 33696
#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc18 THE 2005-05-27 15:51:45 (client local time)
PB2005-SCRIPT v4.0
MARKUPS: idlaunch=2348 boxname=wulflinc18 idbench=261 idsolver=8 numberseed=0
MD5SUM SOLVER: 4b637b3b6117f2add1a6288e91336322 /oldhome/oroussel/solvers/vallstSAT2005PB.sh
MD5SUM BENCH: c35974bed5d553709b7d7ce92d35093a /oldhome/oroussel/tmp/wulflinc18/normalized-data4_3.opb
REAL COMMAND: vallstSAT2005PB.sh /oldhome/oroussel/tmp/wulflinc18/normalized-data4_3.opb 0
IDLAUNCH: 2348
/proc/cpuinfo:
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 7
model name : Pentium III (Katmai)
stepping : 3
cpu MHz : 451.177
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 : 451.177
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: 785572 kB
Buffers: 24736 kB
Cached: 203344 kB
SwapCached: 672 kB
Active: 33392 kB
Inactive: 197012 kB
HighTotal: 131008 kB
HighFree: 252 kB
LowTotal: 903652 kB
LowFree: 785320 kB
SwapTotal: 2097892 kB
SwapFree: 2096564 kB
Dirty: 972 kB
Writeback: 0 kB
Mapped: 5672 kB
Slab: 13076 kB
Committed_AS: 63604 kB
PageTables: 316 kB
VmallocTotal: 114680 kB
VmallocUsed: 1368 kB
VmallocChunk: 113252 kB
JOB ENDED THE 2005-05-27 15:51:47 (client local time) WITH STATUS 30 IN 1.86172 SECONDS
stats: 2348 0 1.86172 30
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
1:
seed: 0
Nr of vars set: 0 (#equs: 0)
Nr of vars set: 0 (#equs: 0)
#decisions: 59; #end-nodes: 27;
#proof improvement attempts: 0; #restarts: 0
Current batch, end-nodes: 27 / 82 (80)
#axs: 765, #non-axs: 23
tight: meta-meta: start: 6, end: 9; meta: start: 12, end (keep): 23
loose: meta-meta: start: 9, end: 14; meta: start: 30, end (keep): 50
result: model found (1)
Model found with constant: 15240 (9847:>=*);
#decisions: 25; #end-nodes: 3;
#proof improvement attempts: 0; #restarts: 0
Current batch, end-nodes: 3 / 80 (80)
#axs: 765, #non-axs: 24
tight: meta-meta: start: 6, end: 9; meta: start: 12, end (keep): 23
loose: meta-meta: start: 9, end: 14; meta: start: 30, end (keep): 50
Model found with constant: 15254 (9833:>=*);
#decisions: 47; #end-nodes: 20;
#proof improvement attempts: 0; #restarts: 0
Current batch, end-nodes: 20 / 81 (80)
#axs: 765, #non-axs: 40
tight: meta-meta: start: 6, end: 9; meta: start: 12, end (keep): 23
loose: meta-meta: start: 9, end: 14; meta: start: 30, end (keep): 50
Model found with constant: 15291 (9796:>=*);
#decisions: 73; #end-nodes: 42;
#proof improvement attempts: 0; #restarts: 0
Current batch, end-nodes: 42 / 82 (80)
#axs: 765, #non-axs: 72
tight: meta-meta: start: 6, end: 9; meta: start: 12, end (keep): 23
loose: meta-meta: start: 9, end: 14; meta: start: 30, end (keep): 50
Model found with constant: 15523 (9564:>=*);
#decisions: 134; #end-nodes: 87;
#proof improvement attempts: 0; #restarts: 1
Current batch, end-nodes: 1 / 83 (80)
#axs: 765, #non-axs: 133
tight: meta-meta: start: 6, end: 9; meta: start: 12, end (keep): 23
loose: meta-meta: start: 9, end: 14; meta: start: 30, end (keep): 50
Model found with constant: 16658 (8429:>=*);
#decisions: 75; #end-nodes: 55;
#proof improvement attempts: 0; #restarts: 0
Current batch, end-nodes: 55 / 189 (80)
#axs: 765, #non-axs: 155
tight: meta-meta: start: 6, end: 9; meta: start: 12, end (keep): 23
loose: meta-meta: start: 9, end: 14; meta: start: 30, end (keep): 50
Model found with constant: 16774 (8313:>=*);
#decisions: 36; #end-nodes: 26;
#proof improvement attempts: 0; #restarts: 0
Current batch, end-nodes: 26 / 111 (80)
#axs: 765, #non-axs: 162
tight: meta-meta: start: 6, end: 9; meta: start: 12, end (keep): 23
loose: meta-meta: start: 9, end: 14; meta: start: 30, end (keep): 50
Model found with constant: 16797 (8290:>=*);
#decisions: 88; #end-nodes: 76;
#proof improvement attempts: 0; #restarts: 0
Current batch, end-nodes: 76 / 211 (80)
#axs: 765, #non-axs: 200
tight: meta-meta: start: 6, end: 9; meta: start: 12, end (keep): 23
loose: meta-meta: start: 9, end: 14; meta: start: 30, end (keep): 50
Model found with constant: 16811 (8276:>=*);
#decisions: 3840; #end-nodes: 3236;
#proof improvement attempts: 0; #restarts: 0
Current batch, end-nodes: 3236 / 3707 (80)
#axs: 765, #non-axs: 1855
tight: meta-meta: start: 6, end: 9; meta: start: 12, end (keep): 23
loose: meta-meta: start: 9, end: 14; meta: start: 30, end (keep): 50
Model found with constant:
(pushed:) 16811 (8276:>=*)
With an increment of the last pushed constant, a proof of false was found.
result: proof of false found (0)
seed: 0
Nr of vars set: 139 (#equs: 0)
Time taken in milliseconds: 1680
times:
0m0.016s 0m0.010s
0m1.581s 0m0.120s
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
s OPTIMUM FOUND
#### 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
Enforcing Stack size limit: 67108864 bytes
Current StackSize limit: 67108864 bytes
Raw data (loadavg): 0.91 0.97 0.91 2/54 25632
Raw data (stat): 25632 (runsolver) R 25631 24172 24171 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 857368383 884736 94 4294967295 134512640 135332820 3221224448 3221219612 135092226 0 2147483391 7 90112 0 0 0 17 1 0 0
Raw data (statm): 216 94 205 205 0 11 0
vsize: 864
[startup+2.22957 s]
Raw data (loadavg): 0.91 0.97 0.91 1/53 25645
Raw data (stat): 25632 (runsolver) R 25631 24172 24171 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 857368383 884736 94 4294967295 134512640 135332820 3221224448 3221219612 135092226 0 2147483391 7 90112 0 0 0 17 1 0 0
Raw data (statm): 216 94 205 205 0 11 0
vsize: 0
Child status: 30
Real time (s): 2.22932
CPU time (s): 1.86172
CPU user time (s): 1.66475
CPU system time (s): 0.19697
CPU usage (%): 83.5104
Max. virtual memory (Kb): 864
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
Verifier: OK 8276
#### END VERIFIER DATA ####