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-v2-20-10/MIPLIB/miplib/normalized-mps-v2-20-10-misc03.opb |
| MD5SUM | 91a12c778773a00a6198e856654cd609 |
| Bench Category | optimization, big integers (OPTBIGINT) |
| Has Objective Function | YES |
| Satisfiable | YES |
| (Un)Satisfiability was proved | YES |
| Best value of the objective function | 1077181440 |
| Optimality of the best value was proved | NO |
| Number of terms in the objective function | 31 |
| Biggest coefficient in the objective function | 1073741824 |
| Number of bits for the biggest coefficient in the objective function | 31 |
| Sum of the numbers in the objective function | 2147483647 |
| Number of bits of the sum of numbers in the objective function | 31 |
| Biggest number in a constraint | 1073741824 |
| Number of bits of the biggest number in a constraint | 31 |
| Biggest sum of numbers in a constraint | 3287149567 |
| Number of bits of the biggest sum of numbers | 32 |
| Best result obtained on this benchmark | SAT |
| Best CPU time to get the best result obtained on this benchmark | 17.5123 |
| Number of variables | 190 |
| Total number of constraints | 255 |
| Number of constraints which are clauses | 31 |
| Number of constraints which are cardinality constraints (but not clauses) | 170 |
| Number of constraints which are nor clauses,nor cardinality constraints | 54 |
| Minimum length of a constraint | 1 |
| Maximum length of a constraint | 169 |
Trace number 34530
#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc9 THE 2005-05-27 23:53:49 (client local time)
PB2005-SCRIPT v4.0
MARKUPS: idlaunch=11968 boxname=wulflinc9 idbench=921 idsolver=8 numberseed=0
MD5SUM SOLVER: 4b637b3b6117f2add1a6288e91336322 /oldhome/oroussel/solvers/vallstSAT2005PB.sh
MD5SUM BENCH: 91a12c778773a00a6198e856654cd609 /oldhome/oroussel/tmp/wulflinc9/normalized-mps-v2-20-10-misc03.opb
REAL COMMAND: vallstSAT2005PB.sh /oldhome/oroussel/tmp/wulflinc9/normalized-mps-v2-20-10-misc03.opb 0
IDLAUNCH: 11968
/proc/cpuinfo:
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 7
model name : Pentium III (Katmai)
stepping : 2
cpu MHz : 451.242
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 : 451.242
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: 687928 kB
Buffers: 24532 kB
Cached: 297700 kB
SwapCached: 564 kB
Active: 20388 kB
Inactive: 303892 kB
HighTotal: 131008 kB
HighFree: 48692 kB
LowTotal: 903652 kB
LowFree: 639236 kB
SwapTotal: 2097136 kB
SwapFree: 2095636 kB
Dirty: 180 kB
Writeback: 0 kB
Mapped: 5124 kB
Slab: 16652 kB
Committed_AS: 63588 kB
PageTables: 316 kB
VmallocTotal: 114680 kB
VmallocUsed: 1364 kB
VmallocChunk: 113256 kB
JOB ENDED THE 2005-05-27 23:54:07 (client local time) WITH STATUS 30 IN 17.5123 SECONDS
stats: 11968 0 17.5123 30
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
1:
seed: 0
Nr of vars set: 0 (#equs: 0)
Nr of vars set: 20 (#equs: 0)
#decisions: 204; #end-nodes: 89;
#proof improvement attempts: 0; #restarts: 0
Current batch, end-nodes: 89 / 101 (80)
#axs: 124, #non-axs: 47
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: 1069037566 (1078446080:>=*);
#decisions: 115; #end-nodes: 51;
#proof improvement attempts: 0; #restarts: 0
Current batch, end-nodes: 51 / 84 (80)
#axs: 124, #non-axs: 70
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: 1069252606 (1078231040:>=*);
#decisions: 151; #end-nodes: 71;
#proof improvement attempts: 0; #restarts: 0
Current batch, end-nodes: 71 / 88 (80)
#axs: 124, #non-axs: 106
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: 1069431806 (1078051840:>=*);
#decisions: 273; #end-nodes: 131;
#proof improvement attempts: 0; #restarts: 1
Current batch, end-nodes: 20 / 101 (80)
#axs: 124, #non-axs: 195
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: 1069938686 (1077544960:>=*);
#decisions: 34; #end-nodes: 7;
#proof improvement attempts: 0; #restarts: 0
Current batch, end-nodes: 7 / 80 (80)
#axs: 124, #non-axs: 195
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: 1070015486 (1077468160:>=*);
#decisions: 62; #end-nodes: 28;
#proof improvement attempts: 0; #restarts: 0
Current batch, end-nodes: 28 / 83 (80)
#axs: 124, #non-axs: 208
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: 1070225406 (1077258240:>=*);
#decisions: 29; #end-nodes: 4;
#proof improvement attempts: 0; #restarts: 0
Current batch, end-nodes: 4 / 80 (80)
#axs: 124, #non-axs: 208
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: 1070302206 (1077181440:>=*);
#decisions: 23166; #end-nodes: 16628;
#proof improvement attempts: 0; #restarts: 5
Current batch, end-nodes: 4736 / 5212 (81)
#axs: 124, #non-axs: 6106
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:) 1070302206 (1077181440:>=*)
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: 150 (#equs: 0)
Time taken in seconds: 17
times:
0m0.014s 0m0.012s
0m17.152s 0m0.177s
v -COL160_bit_10 -COL160_bit_9 -COL160_bit_8 -COL160_bit_7 -COL160_bit_6 -COL160_bit_5 -COL160_bit_4 -COL160_bit_3 -COL160_bit_2 -COL160_bit_1 COL160_bit0 COL160_bit1 COL160_bit2 COL160_bit3 COL160_bit4 -COL160_bit5 -COL160_bit6 -COL160_bit7 COL160_bit8 -COL160_bit9 COL160_bit10 COL160_bit11 -COL160_bit12 -COL160_bit13 -COL160_bit14 -COL160_bit15 -COL160_bit16 -COL160_bit17 -COL160_bit18 -COL160_bit19 COL160_bit20 -COL001_bit0 -COL002_bit0 -COL003_bit0 -COL004_bit0 -COL005_bit0 -COL006_bit0 -COL007_bit0 -COL008_bit0 -COL009_bit0 -COL010_bit0 -COL011_bit0 -COL012_bit0 -COL013_bit0 -COL014_bit0 -COL015_bit0 -COL016_bit0 -COL017_bit0 -COL018_bit0 -COL019_bit0 COL020_bit0 -COL021_bit0 -COL022_bit0 COL023_bit0 -COL024_bit0 -COL025_bit0 -COL026_bit0 -COL027_bit0 -COL028_bit0 -COL029_bit0 -COL030_bit0 -COL031_bit0 -COL032_bit0 -COL033_bit0 -COL034_bit0 -COL035_bit0 -COL036_bit0 -COL037_bit0 -COL038_bit0 -COL039_bit0 -COL040_bit0 -COL041_bit0 -COL042_bit0 -COL043_bit0 -COL044_bit0 -COL045_bit0 -COL046_bit0 -COL047_bit0 -COL048_bit0 -COL049_bit0 -COL050_bit0 -COL051_bit0 -COL052_bit0 -COL053_bit0 -COL054_bit0 -COL055_bit0 -COL056_bit0 -COL057_bit0 -COL058_bit0 -COL059_bit0 -COL060_bit0 COL061_bit0 -COL062_bit0 -COL063_bit0 -COL064_bit0 -COL065_bit0 -COL066_bit0 -COL067_bit0 -COL068_bit0 -COL069_bit0 -COL070_bit0 -COL071_bit0 -COL072_bit0 -COL073_bit0 -COL074_bit0 -COL075_bit0 -COL076_bit0 -COL077_bit0 COL078_bit0 -COL079_bit0 -COL080_bit0 -COL081_bit0 -COL082_bit0 -COL083_bit0 -COL084_bit0 -COL085_bit0 -COL086_bit0 -COL087_bit0 -COL088_bit0 -COL089_bit0 -COL090_bit0 -COL091_bit0 -COL092_bit0 -COL093_bit0 -COL094_bit0 -COL095_bit0 -COL096_bit0 -COL097_bit0 -COL098_bit0 -COL099_bit0 -COL100_bit0 -COL101_bit0 COL102_bit0 -COL103_bit0 -COL104_bit0 -COL105_bit0 -COL106_bit0 -COL107_bit0 -COL108_bit0 -COL109_bit0 -COL110_bit0 -COL111_bit0 -COL112_bit0 -COL113_bit0 -COL114_bit0 -COL115_bit0 -COL116_bit0 COL117_bit0 -COL118_bit0 -COL119_bit0 -COL120_bit0 -COL121_bit0 -COL122_bit0 -COL123_bit0 -COL124_bit0 -COL125_bit0 -COL126_bit0 -COL127_bit0 -COL128_bit0 -COL129_bit0 -COL130_bit0 COL131_bit0 -COL132_bit0 COL133_bit0 -COL134_bit0 -COL135_bit0 -COL136_bit0 -COL137_bit0 -COL138_bit0 -COL139_bit0 -COL140_bit0 -COL141_bit0 -COL142_bit0 -COL143_bit0 -COL144_bit0 -COL145_bit0 -COL146_bit0 -COL147_bit0 COL148_bit0 COL149_bit0 -COL150_bit0 COL151_bit0 -COL152_bit0 COL153_bit0 -COL154_bit0 COL155_bit0 COL156_bit0 -COL157_bit0 COL158_bit0 -COL159_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): 0.76 0.92 0.96 2/54 13650
Raw data (stat): 13650 (runsolver) R 13649 3944 3943 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 802053207 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+10.001 s]
Raw data (loadavg): 0.79 0.92 0.96 2/55 13653
Raw data (stat): 13650 (vallstSAT2005PB) S 13649 3944 3943 0 -1 0 321 231 0 0 0 1 0 0 20 0 1 0 802053207 2179072 242 4294967295 134512640 135087896 3221224512 3221223784 1074634510 0 65536 5 1132560122 3222414538 0 0 17 1 0 0
Raw data (statm): 532 242 485 147 0 385 0
vsize: 2128
[startup+17.8691 s]
Raw data (loadavg): 0.81 0.92 0.96 1/53 13663
Raw data (stat): 13650 (vallstSAT2005PB) S 13649 3944 3943 0 -1 0 321 231 0 0 0 1 0 0 20 0 1 0 802053207 2179072 242 4294967295 134512640 135087896 3221224512 3221223784 1074634510 0 65536 5 1132560122 3222414538 0 0 17 1 0 0
Raw data (statm): 532 242 485 147 0 385 0
vsize: 0
Child status: 30
Real time (s): 17.8689
CPU time (s): 17.5123
CPU user time (s): 17.2494
CPU system time (s): 0.26296
CPU usage (%): 98.0048
Max. virtual memory (Kb): 2128
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
Verifier: OK 1077181440
#### END VERIFIER DATA ####