Trace number 40480

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 into four (or five) parts:
  1. 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 ! In such a case, you may want to use the "Download as text" link to get the trace as a text file.

    When the --timestamp option is passed to the runsolver program, each line output by the solver is prepended with a timestamp which indicates at what time the line was output by the solver. Times are relative to the start of the program, given in seconds, and are wall clock time (not CPU time).

    As some 'v lines' may be very long (sometimes several megabytes), the 'v line' output by your solver may be split on several lines to help limit the size of the trace recorded in the database. In any case, the exact output of your solver is preserved in a trace file.
  2. 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.
  3. CONVERSION SCRIPT DATA (Optionnal)
    When a conversion script is used, this section shows the messages that were output by the conversion script.
  4. 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 X seconds (see the parameters in the trace). 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 X+30 seconds which will send a SIGXPU to the solver. The last limit is on the virtual memory used by the process (see the parameters in the trace).
    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.
  5. 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 provides some useful information on the computer.

Solver answer on this benchmark

Solver NameAnswerObjective functionCPU timeWall clock time
bsolo 2006/05OPT304 29.3615 29.412

General information on the benchmark

Namenormalized-PB06/OPT-SMALLINT/web/www.ps.uni-sb.de/
~walser/benchmarks/course-ass/normalized-ss97-6.opb
MD5SUMdcfce19ac0444148b26b7675e35c76bc
Bench CategoryOPT-SMALLINT (optimisation, small integers)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark304
Best CPU time to get the best result obtained on this benchmark0.010997
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 304
Optimality of the best value was proved YES
Number of variables257
Total number of constraints97
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)97
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint1
Maximum length of a constraint44
Number of terms in the objective function 173
Biggest coefficient in the objective function 100
Number of bits for the biggest coefficient in the objective function 7
Sum of the numbers in the objective function 8448
Number of bits of the sum of numbers in the objective function 14
Biggest number in a constraint 100
Number of bits of the biggest number in a constraint 7
Biggest sum of numbers in a constraint 8448
Number of bits of the biggest sum of numbers14
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Quality of the solution as a function of time


Download the above graph as a PDF file / as an EPS file

Solver Data (download as text)

0.00	c Time Limit set via PBTIMEOUT to 1800
0.04	c INFO: OSL Context initialized.
0.04	c Initial problem consists of 257 variables and 181 constraints.
0.05	c No problem reductions applied in OPT. instance.
0.05	c	preprocess terminated. Elapsed time: 0.013
0.05	c After prepocess the problem consists of 216 variables and 100 constraints.
0.05	c Initial Lower Bound: 87
0.05	c Sol. found (all assignments made)...
0.05	o 2322
0.05	c NEW SOLUTION FOUND: 2322 @ 0.014
0.05	c Sol. found (all assignments made)...
0.05	o 2221
0.05	c NEW SOLUTION FOUND: 2221 @ 0.014
0.05	c Sol. found (all assignments made)...
0.05	c Sol. found (all assignments made)...
0.05	o 2220
0.05	c NEW SOLUTION FOUND: 2220 @ 0.014
0.05	c Sol. found (all assignments made)...
0.05	c Sol. found (all assignments made)...
0.05	o 2120
0.05	c NEW SOLUTION FOUND: 2120 @ 0.014
0.05	c Sol. found (all assignments made)...
0.05	o 2119
0.05	c NEW SOLUTION FOUND: 2119 @ 0.014
0.05	c Sol. found (all assignments made)...
0.05	o 2118
0.05	c NEW SOLUTION FOUND: 2118 @ 0.015
0.05	c Sol. found (all assignments made)...
0.05	c Sol. found (all assignments made)...
0.06	c Sol. found (all assignments made)...
0.06	c Sol. found (all assignments made)...
0.06	c Sol. found (all assignments made)...
0.06	c Restart #1 #Var: 216 LB: 87 @ 0.026
0.06	c Sol. found (all assignments made)...
0.06	o 1212
0.06	c NEW SOLUTION FOUND: 1212 @ 0.027
0.06	c Sol. found (all assignments made)...
0.06	o 1112
0.06	c NEW SOLUTION FOUND: 1112 @ 0.027
0.06	c Sol. found (all assignments made)...
0.06	o 1012
0.06	c NEW SOLUTION FOUND: 1012 @ 0.027
0.06	c Sol. found (all assignments made)...
0.06	o 912
0.06	c NEW SOLUTION FOUND: 912 @ 0.027
0.06	c Sol. found (all assignments made)...
0.06	o 812
0.06	c NEW SOLUTION FOUND: 812 @ 0.028
0.08	c Sol. found (all assignments made)...
0.08	o 811
0.08	c NEW SOLUTION FOUND: 811 @ 0.041
0.08	c Sol. found (all assignments made)...
0.08	o 711
0.08	c NEW SOLUTION FOUND: 711 @ 0.042
0.09	c Sol. found (all assignments made)...
0.09	c Sol. found (all assignments made)...
0.09	o 611
0.09	c NEW SOLUTION FOUND: 611 @ 0.053
0.09	c Sol. found (all assignments made)...
0.09	o 610
0.09	c NEW SOLUTION FOUND: 610 @ 0.054
0.11	c Restart #2 #Var: 216 LB: 87 @ 0.08
0.14	c Restart #3 #Var: 216 LB: 87 @ 0.106
0.14	c Sol. found (all assignments made)...
0.14	o 607
0.14	c NEW SOLUTION FOUND: 607 @ 0.107
0.14	c Sol. found (all assignments made)...
0.14	o 507
0.14	c NEW SOLUTION FOUND: 507 @ 0.108
0.14	c Sol. found (all assignments made)...
0.14	o 407
0.14	c NEW SOLUTION FOUND: 407 @ 0.108
0.14	c Sol. found (all assignments made)...
0.14	o 406
0.14	c NEW SOLUTION FOUND: 406 @ 0.109
0.14	c Sol. found (all assignments made)...
0.14	o 405
0.14	c NEW SOLUTION FOUND: 405 @ 0.109
0.15	c Sol. found (all assignments made)...
0.15	o 305
0.15	c NEW SOLUTION FOUND: 305 @ 0.115
0.20	c Restart #4 #Var: 216 LB: 87 @ 0.171
0.27	c Restart #5 #Var: 216 LB: 87 @ 0.234
0.34	c Restart #6 #Var: 216 LB: 87 @ 0.307
0.46	c Restart #7 #Var: 216 LB: 87 @ 0.43
0.58	c CHANGE to LPR mode... 	UB: 305	MIS: 287	LPR: 303 (0.004)	Diff: 0.94719
0.58	c Restart #0 #Var: 216 LB: 87 @ 0.548
1.31	c Restart #1 #Var: 212 LB: 303 @ 1.274
2.68	c Restart #2 #Var: 212 LB: 303 @ 2.65
5.08	c Restart #3 #Var: 207 LB: 303 @ 5.049
7.52	c Restart #4 #Var: 195 LB: 303 @ 7.484
10.42	c Restart #5 #Var: 191 LB: 303 @ 10.378
14.22	c Restart #6 #Var: 187 LB: 303 @ 14.181
18.57	c Restart #7 #Var: 187 LB: 303 @ 18.524
23.11	c Restart #8 #Var: 179 LB: 303 @ 23.069
26.70	o 304
26.70	c NEW SOLUTION FOUND: 304 @ 26.654
29.40	s OPTIMUM FOUND
29.40	c Cost: 304
29.40	v x134 x178 -x218 x4 x180 x8 x9 -x97 -x185 x225 -x186 x226 x11 -x99 -x143 -x187 x227 x100 x13 x14 -x15 x59 x104 -x61 -x105 x149 x230
29.40	v x62 x20 -x108 -x109 x153 x22 -x110 -x154 -x111 x155 x112 -x192 x232 x27 -x71 x237 x118 -x198 x238 x199 -x239 x119 x200 -x240
29.40	v x164 x121 x202 -x242 -x203 x243 -x122 x204 -x244 -x124 x168 x206 -x246 x125 x247 -x38 -x126 x170 x208 -x248 x127 x249 x40 -x172
29.40	v x250 x213 -x253 x130 x214 -x254 x131 x215 -x255 x132 x216 -x256 x133 x257 -x2 -x46 -x90 -x91 -x179 -x48 -x220 -x222 -x224 -x53
29.40	v -x141 -x12 -x56 -x144 -x228 -x57 -x145 -x229 -x58 -x146 -x103 -x147 -x16 -x148 -x18 -x150 -x19 x63 -x107 -x151 -x152 -x66 -x24
29.40	v -x68 -x156 -x25 -x69 -x113 x157 -x191 x231 -x159 -x233 -x234 -x235 -x236 -x30 -x74 -x162 -x31 -x75 -x163 -x76 -x120 -x241 -x33
29.40	v -x77 -x165 -x34 -x166 -x35 -x79 -x245 -x80 -x81 -x169 -x82 -x39 -x83 -x171 -x84 -x128 -x42 -x86 -x174 -x43 -x87 -x175 -x44 -x88
29.40	v -x176 -x177 -x217 x1 -x3 -x5 -x6 -x7 -x10 -x17 -x21 -x23 -x26 -x28 x29 -x32 -x36 -x37 x41 -x45 x47 x49 x50 x51 -x52 -x54 -x55 -x60
29.40	v -x64 -x65 -x67 x70 -x72 -x73 x78 -x85 -x89 -x92 -x93 -x94 -x95 -x96 -x98 -x101 -x102 -x106 -x114 -x115 -x116 -x117 -x123 -x129
29.40	v -x135 -x136 -x137 -x138 -x139 -x140 x142 -x158 x160 -x161 x167 -x173 -x181 x182 -x183 x184 x188 x189 -x190 x193 x194 x195 x196
29.40	v -x197 x201 x205 -x207 -x209 -x210 -x211 -x212 x219 x221 x223 x251 x252
29.40	c Exit Code: 30
29.40	c Total time: 29.354 s

Verifier Data (download as text)

OK	304

Watcher Data (download as text)

Enforcing CPU limit (will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime (will send SIGXCPU) limit: 1830 seconds
Enforcing Stack size limit: 67108864 bytes
Enforcing memory limit (will send SIGKILL): 1843200 Kb
Enforcing VSIZE limit: 1887436800 bytes
runsolver version 3.0.0 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node2/watcher-40480-1149291077 -o ROOT/results/node2/solver-40480-1149291077 -C 1800 -M 1800 -S 64 ROOT/solvers/PB/PB06final/user10/bsolo ROOT/tmp/node2/40480-1149291077/instance-40480-1149291077.opb 

Current StackSize limit: 67108864 bytes

/proc/loadavg: 0.92 0.98 0.92 2/64 26005
/proc/meminfo: memFree=1531648/2055920 swapFree=4181512/4192956
[pid=26005] ppid=26003 vsize=4664 CPUtime=0
/proc/26005/stat : 26005 (bsolo) R 26003 26005 25959 0 -1 0 155 0 0 0 0 0 0 0 18 0 1 0 194769370 4775936 135 18446744073709551615 134512640 134738892 4294956688 18446744073709551615 10505492 0 0 4096 0 0 0 0 17 1 0 0
/proc/26005/statm: 1166 135 105 55 0 46 0

[startup+10.0024 s]
/proc/loadavg: 0.93 0.98 0.92 2/64 26005
/proc/meminfo: memFree=1515864/2055920 swapFree=4181512/4192956
[pid=26005] ppid=26003 vsize=20424 CPUtime=9.96
/proc/26005/stat : 26005 (bsolo) R 26003 26005 25959 0 -1 0 17525 0 0 0 976 20 0 0 25 0 1 0 194769370 20914176 4404 18446744073709551615 134512640 134738892 4294956688 18446744073709551615 4158535994 0 0 4096 16384 0 0 0 17 1 0 0
/proc/26005/statm: 5106 4404 420 55 0 3998 0
Current children cumulated CPU time (s) 9.96
Current children cumulated vsize (Kb) 20424

[startup+20.0094 s]
/proc/loadavg: 0.94 0.98 0.92 2/64 26005
/proc/meminfo: memFree=1510104/2055920 swapFree=4181512/4192956
[pid=26005] ppid=26003 vsize=26204 CPUtime=19.96
/proc/26005/stat : 26005 (bsolo) R 26003 26005 25959 0 -1 0 31627 0 0 0 1955 41 0 0 25 0 1 0 194769370 26832896 5849 18446744073709551615 134512640 134738892 4294956688 18446744073709551615 4294960144 0 0 4096 16384 0 0 0 17 1 0 0
/proc/26005/statm: 6551 5849 420 55 0 5443 0
Current children cumulated CPU time (s) 19.96
Current children cumulated vsize (Kb) 26204

Child status: 30
Real time (s): 29.412
CPU time (s): 29.3615
CPU user time (s): 28.7826
CPU system time (s): 0.578911
CPU usage (%): 99.8284
Max. virtual memory (cumulated for all children) (Kb): 26204

Launcher Data (download as text)

Begin job on node2 on Fri Jun  2 23:31:18 UTC 2006


FILE ID= 40480-1149291077

PBS_JOBID= 306848

BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/OPT-SMALLINT/web/www.ps.uni-sb.de/~walser/benchmarks/course-ass/normalized-ss97-6.opb
COMMAND LINE= ROOT/solvers/PB/PB06final/user10/bsolo ROOT/tmp/node2/40480-1149291077/instance-40480-1149291077.opb
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node2/watcher-40480-1149291077 -o ROOT/results/node2/solver-40480-1149291077 -C 1800 -M 1800 -S 64  ROOT/solvers/PB/PB06final/user10/bsolo ROOT/tmp/node2/40480-1149291077/instance-40480-1149291077.opb

MD5SUM SOLVER= 05cada221eb1efaaae980ebc7509e7e8
MD5SUM BENCH=  dcfce19ac0444148b26b7675e35c76bc

RANDOM SEED= 649564409


/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.240
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5914.62
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.240
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1531920 kB
Buffers:         22812 kB
Cached:         431096 kB
SwapCached:       3392 kB
Active:          44740 kB
Inactive:       418100 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1531920 kB
SwapTotal:     4192956 kB
SwapFree:      4181512 kB
Dirty:             212 kB
Writeback:           0 kB
Mapped:          14936 kB
Slab:            47120 kB
Committed_AS:   266000 kB
PageTables:       1496 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB


End job on node2 on Fri Jun  2 23:31:47 UTC 2006