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/mps-v2-13-7/MIPLIB/miplib/normalized-mps-v2-13-7-p0040.opb |
MD5SUM | 1c249519911563f3292efb34f4875b44 |
Bench Category | optimization, small integers (OPTSMALLINT) |
Has Objective Function | YES |
Satisfiable | YES |
(Un)Satisfiability was proved | YES |
Best value of the objective function | 62027 |
Optimality of the best value was proved | NO |
Number of terms in the objective function | 40 |
Biggest coefficient in the objective function | 8161 |
Number of bits for the biggest coefficient in the objective function | 13 |
Sum of the numbers in the objective function | 265332 |
Number of bits of the sum of numbers in the objective function | 19 |
Biggest number in a constraint | 8161 |
Number of bits of the biggest number in a constraint | 13 |
Biggest sum of numbers in a constraint | 265332 |
Number of bits of the biggest sum of numbers | 19 |
Best result obtained on this benchmark | SAT |
Best CPU time to get the best result obtained on this benchmark | 0.293954 |
Number of variables | 40 |
Total number of constraints | 63 |
Number of constraints which are clauses | 10 |
Number of constraints which are cardinality constraints (but not clauses) | 50 |
Number of constraints which are nor clauses,nor cardinality constraints | 3 |
Minimum length of a constraint | 1 |
Maximum length of a constraint | 10 |
Trace number 33970
#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc21 THE 2005-05-27 18:46:22 (client local time)
PB2005-SCRIPT v4.0
MARKUPS: idlaunch=17103 boxname=wulflinc21 idbench=1316 idsolver=8 numberseed=0
MD5SUM SOLVER: 4b637b3b6117f2add1a6288e91336322 /oldhome/oroussel/solvers/vallstSAT2005PB.sh
MD5SUM BENCH: 1c249519911563f3292efb34f4875b44 /oldhome/oroussel/tmp/wulflinc21/normalized-mps-v2-13-7-p0040.opb
REAL COMMAND: vallstSAT2005PB.sh /oldhome/oroussel/tmp/wulflinc21/normalized-mps-v2-13-7-p0040.opb 0
IDLAUNCH: 17103
/proc/cpuinfo:
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 7
model name : Pentium III (Katmai)
stepping : 3
cpu MHz : 451.161
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 : 890.88
processor : 1
vendor_id : GenuineIntel
cpu family : 6
model : 7
model name : Pentium III (Katmai)
stepping : 3
cpu MHz : 451.161
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: 619056 kB
Buffers: 33884 kB
Cached: 360272 kB
SwapCached: 992 kB
Active: 51888 kB
Inactive: 344448 kB
HighTotal: 131008 kB
HighFree: 252 kB
LowTotal: 903652 kB
LowFree: 618804 kB
SwapTotal: 2097892 kB
SwapFree: 2096008 kB
Dirty: 40 kB
Writeback: 0 kB
Mapped: 5144 kB
Slab: 13612 kB
Committed_AS: 63916 kB
PageTables: 332 kB
VmallocTotal: 114680 kB
VmallocUsed: 1368 kB
VmallocChunk: 113252 kB
JOB ENDED THE 2005-05-27 18:47:58 (client local time) WITH STATUS 30 IN 95.7974 SECONDS
stats: 17103 0 95.7974 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: 20; #end-nodes: 0;
#proof improvement attempts: 0; #restarts: 0
Current batch, end-nodes: 0 / 80 (80)
#axs: 24, #non-axs: 0
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: 201236 (64095:>=*);
#decisions: 20; #end-nodes: 3;
#proof improvement attempts: 0; #restarts: 0
Current batch, end-nodes: 3 / 80 (80)
#axs: 24, #non-axs: 3
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: 201690 (63641:>=*);
#decisions: 19; #end-nodes: 1;
#proof improvement attempts: 0; #restarts: 0
Current batch, end-nodes: 1 / 80 (80)
#axs: 24, #non-axs: 4
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: 201761 (63570:>=*);
#decisions: 19; #end-nodes: 2;
#proof improvement attempts: 0; #restarts: 0
Current batch, end-nodes: 2 / 80 (80)
#axs: 24, #non-axs: 6
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: 202215 (63116:>=*);
#decisions: 35; #end-nodes: 10;
#proof improvement attempts: 0; #restarts: 0
Current batch, end-nodes: 10 / 80 (80)
#axs: 24, #non-axs: 16
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: 202222 (63109:>=*);
#decisions: 19; #end-nodes: 3;
#proof improvement attempts: 0; #restarts: 0
Current batch, end-nodes: 3 / 80 (80)
#axs: 24, #non-axs: 19
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: 202676 (62655:>=*);
#decisions: 27; #end-nodes: 6;
#proof improvement attempts: 0; #restarts: 0
Current batch, end-nodes: 6 / 80 (80)
#axs: 24, #non-axs: 25
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: 202730 (62601:>=*);
#decisions: 19; #end-nodes: 4;
#proof improvement attempts: 0; #restarts: 0
Current batch, end-nodes: 4 / 80 (80)
#axs: 24, #non-axs: 29
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: 203255 (62076:>=*);
#decisions: 138210; #end-nodes: 79780;
#proof improvement attempts: 0; #restarts: 540
Current batch, end-nodes: 176 / 215 (215)
#axs: 24, #non-axs: 33
tight: meta-meta: start: 6, end: 9; meta: start: 6, end (keep): 7
loose: meta-meta: start: 9, end: 14; meta: start: 30, end (keep): 50
Model found with constant: 203301 (62030:>=*);
#decisions: 47397; #end-nodes: 27926;
#proof improvement attempts: 0; #restarts: 251
Current batch, end-nodes: 15 / 142 (142)
#axs: 24, #non-axs: 25
tight: meta-meta: start: 6, end: 9; meta: start: 6, end (keep): 7
loose: meta-meta: start: 9, end: 14; meta: start: 30, end (keep): 50
Model found with constant: 203304 (62027:>=*);
#decisions: 2814394; #end-nodes: 1869304;
#proof improvement attempts: 0; #restarts: 3270
Current batch, end-nodes: 19023 / 24314 (897)
#axs: 24, #non-axs: 35
tight: meta-meta: start: 5, end: 7; meta: start: 6, end (keep): 7
loose: meta-meta: start: 9, end: 14; meta: start: 30, end (keep): 50
Model found with constant:
(pushed:) 203304 (62027:>=*)
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: 40 (#equs: 0)
Time taken in seconds: 95
times:
0m0.017s 0m0.007s
1m27.802s 0m7.874s
v -C1001_bit0 C1002_bit0 -C1003_bit0 -C1004_bit0 -C1005_bit0 C1006_bit0 -C1007_bit0 -C1008_bit0 C1009_bit0 -C1010_bit0 -C1011_bit0 -C1012_bit0 -C1013_bit0 -C1014_bit0 C1015_bit0 -C1016_bit0 -C1017_bit0 C1018_bit0 -C1019_bit0 -C1020_bit0 -C1021_bit0 C1022_bit0 -C1023_bit0 -C1024_bit0 -C1025_bit0 C1026_bit0 -C1027_bit0 -C1028_bit0 C1029_bit0 -C1030_bit0 -C1031_bit0 -C1032_bit0 -C1033_bit0 C1034_bit0 -C1035_bit0 -C1036_bit0 -C1037_bit0 C1038_bit0 -C1039_bit0 -C1040_bit0
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): 0.92 0.98 0.92 2/55 6195
Raw data (stat): 6195 (runsolver) R 6194 32363 32362 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 735696066 884736 94 4294967295 134512640 135332820 3221224448 3221219612 135092226 0 2147483391 7 90112 0 0 0 17 0 0 0
Raw data (statm): 216 94 205 205 0 11 0
vsize: 864
[startup+10.0003 s]
Raw data (loadavg): 0.93 0.98 0.92 2/56 6198
Raw data (stat): 6195 (vallstSAT2005PB) S 6194 32363 32362 0 -1 0 321 231 0 0 1 0 0 0 19 0 1 0 735696066 2179072 242 4294967295 134512640 135087896 3221224512 3221223784 1074634510 0 65536 5 1132560122 3222414538 0 0 17 0 0 0
Raw data (statm): 532 242 485 147 0 385 0
vsize: 2128
[startup+19.9998 s]
Raw data (loadavg): 0.94 0.98 0.92 2/56 6198
Raw data (stat): 6195 (vallstSAT2005PB) S 6194 32363 32362 0 -1 0 321 231 0 0 1 0 0 0 19 0 1 0 735696066 2179072 242 4294967295 134512640 135087896 3221224512 3221223784 1074634510 0 65536 5 1132560122 3222414538 0 0 17 0 0 0
Raw data (statm): 532 242 485 147 0 385 0
vsize: 2128
[startup+30.0005 s]
Raw data (loadavg): 0.95 0.98 0.92 2/56 6198
Raw data (stat): 6195 (vallstSAT2005PB) S 6194 32363 32362 0 -1 0 321 231 0 0 1 0 0 0 19 0 1 0 735696066 2179072 242 4294967295 134512640 135087896 3221224512 3221223784 1074634510 0 65536 5 1132560122 3222414538 0 0 17 0 0 0
Raw data (statm): 532 242 485 147 0 385 0
vsize: 2128
[startup+40.0002 s]
Raw data (loadavg): 0.96 0.98 0.92 2/56 6198
Raw data (stat): 6195 (vallstSAT2005PB) S 6194 32363 32362 0 -1 0 321 231 0 0 1 0 0 0 19 0 1 0 735696066 2179072 242 4294967295 134512640 135087896 3221224512 3221223784 1074634510 0 65536 5 1132560122 3222414538 0 0 17 0 0 0
Raw data (statm): 532 242 485 147 0 385 0
vsize: 2128
[startup+49.9998 s]
Raw data (loadavg): 0.96 0.98 0.92 2/56 6198
Raw data (stat): 6195 (vallstSAT2005PB) S 6194 32363 32362 0 -1 0 321 231 0 0 1 0 0 0 19 0 1 0 735696066 2179072 242 4294967295 134512640 135087896 3221224512 3221223784 1074634510 0 65536 5 1132560122 3222414538 0 0 17 0 0 0
Raw data (statm): 532 242 485 147 0 385 0
vsize: 2128
[startup+59.9995 s]
Raw data (loadavg): 0.97 0.98 0.92 2/56 6198
Raw data (stat): 6195 (vallstSAT2005PB) S 6194 32363 32362 0 -1 0 321 231 0 0 1 0 0 0 19 0 1 0 735696066 2179072 242 4294967295 134512640 135087896 3221224512 3221223784 1074634510 0 65536 5 1132560122 3222414538 0 0 17 0 0 0
Raw data (statm): 532 242 485 147 0 385 0
vsize: 2128
[startup+69.9991 s]
Raw data (loadavg): 0.97 0.98 0.92 2/56 6198
Raw data (stat): 6195 (vallstSAT2005PB) S 6194 32363 32362 0 -1 0 321 231 0 0 1 0 0 0 19 0 1 0 735696066 2179072 242 4294967295 134512640 135087896 3221224512 3221223784 1074634510 0 65536 5 1132560122 3222414538 0 0 17 0 0 0
Raw data (statm): 532 242 485 147 0 385 0
vsize: 2128
[startup+79.9997 s]
Raw data (loadavg): 0.98 0.98 0.92 2/56 6198
Raw data (stat): 6195 (vallstSAT2005PB) S 6194 32363 32362 0 -1 0 321 231 0 0 1 0 0 0 19 0 1 0 735696066 2179072 242 4294967295 134512640 135087896 3221224512 3221223784 1074634510 0 65536 5 1132560122 3222414538 0 0 17 0 0 0
Raw data (statm): 532 242 485 147 0 385 0
vsize: 2128
[startup+89.9994 s]
Raw data (loadavg): 0.98 0.98 0.92 2/56 6198
Raw data (stat): 6195 (vallstSAT2005PB) S 6194 32363 32362 0 -1 0 321 231 0 0 1 0 0 0 19 0 1 0 735696066 2179072 242 4294967295 134512640 135087896 3221224512 3221223784 1074634510 0 65536 5 1132560122 3222414538 0 0 17 0 0 0
Raw data (statm): 532 242 485 147 0 385 0
vsize: 2128
[startup+96.31 s]
Raw data (loadavg): 0.98 0.98 0.92 1/54 6208
Raw data (stat): 6195 (vallstSAT2005PB) S 6194 32363 32362 0 -1 0 321 231 0 0 1 0 0 0 19 0 1 0 735696066 2179072 242 4294967295 134512640 135087896 3221224512 3221223784 1074634510 0 65536 5 1132560122 3222414538 0 0 17 0 0 0
Raw data (statm): 532 242 485 147 0 385 0
vsize: 0
Child status: 30
Real time (s): 96.3098
CPU time (s): 95.7974
CPU user time (s): 87.8646
CPU system time (s): 7.93279
CPU usage (%): 99.468
Max. virtual memory (Kb): 2128
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
Verifier: OK 62027
#### END VERIFIER DATA ####