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).
    Note that some very long lines in this section may be truncated by your web browser !
  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

Namesubmitted/een/normalized-mod008.opb
MD5SUM18b325bb9311c83b0604c703bacc9a29
Bench Categoryoptimization, small integers (OPTSMALLINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 87
Optimality of the best value was proved YES
Number of terms in the objective function 319
Biggest coefficient in the objective function 87
Number of bits for the biggest coefficient in the objective function 7
Sum of the numbers in the objective function 23554
Number of bits of the sum of numbers in the objective function 15
Biggest number in a constraint 7499
Number of bits of the biggest number in a constraint 13
Biggest sum of numbers in a constraint 758444
Number of bits of the biggest sum of numbers20
Best result obtained on this benchmarkOPTIMUM FOUND
Best CPU time to get the best result obtained on this benchmark0.304952
Number of variables319
Total number of constraints6
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints6
Minimum length of a constraint186
Maximum length of a constraint231

Trace number 289

Launcher Data

LAUNCH ON wulflinc13 THE 2005-09-18 09:19:35 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=280 boxname=wulflinc13 idbench=280 idsolver=1 numberseed=0
MD5SUM SOLVER: 38f99674050b34630888bf623b924b59  /oldhome/oroussel/solvers/bsolo
MD5SUM BENCH:  18b325bb9311c83b0604c703bacc9a29  /oldhome/oroussel/tmp/wulflinc13/normalized-mod008.opb
REAL COMMAND:  bsolo /oldhome/oroussel/tmp/wulflinc13/normalized-mod008.opb
IDLAUNCH: 280
/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	: 901.12

/proc/meminfo:
MemTotal:      1034660 kB
MemFree:        948712 kB
Buffers:         33340 kB
Cached:          26064 kB
SwapCached:        708 kB
Active:          53232 kB
Inactive:         8840 kB
HighTotal:      131008 kB
HighFree:       101276 kB
LowTotal:       903652 kB
LowFree:        847436 kB
SwapTotal:     2097136 kB
SwapFree:      2095936 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5740 kB
Slab:            18156 kB
Committed_AS:    64128 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-18 09:19:50 (client local time) WITH STATUS 30 IN 14.7188 SECONDS
stats: 280 0 14.7188 30

Solver Data

c INFO: OSL Context initialized.
c Initial problem consists of 319 variables and 6 constraints.
c	preprocess terminated. Elapsed time: 0.093
c After prepocess the problem consists of 203 variables and 6 constraints.
c Initial Lower Bound: 0
c NEW SOLUTION FOUND: 882 @ 0.104 @ #Dec. 10
c NEW SOLUTION FOUND: 879 @ 0.106 @ #Dec. 11
c NEW SOLUTION FOUND: 814 @ 0.128 @ #Dec. 26
c NEW SOLUTION FOUND: 800 @ 0.14 @ #Dec. 43
c NEW SOLUTION FOUND: 797 @ 0.144 @ #Dec. 59
c NEW SOLUTION FOUND: 732 @ 0.177 @ #Dec. 176
c NEW SOLUTION FOUND: 719 @ 0.199 @ #Dec. 222
c NEW SOLUTION FOUND: 716 @ 0.205 @ #Dec. 240
c NEW SOLUTION FOUND: 651 @ 0.253 @ #Dec. 381
c NEW SOLUTION FOUND: 631 @ 0.281 @ #Dec. 435
c NEW SOLUTION FOUND: 566 @ 0.322 @ #Dec. 575
c NEW SOLUTION FOUND: 564 @ 0.39 @ #Dec. 633
c NEW SOLUTION FOUND: 551 @ 0.4 @ #Dec. 662
c NEW SOLUTION FOUND: 548 @ 0.409 @ #Dec. 689
c NEW SOLUTION FOUND: 483 @ 0.43 @ #Dec. 739
c NEW SOLUTION FOUND: 407 @ 0.537 @ #Dec. 804
c NEW SOLUTION FOUND: 403 @ 0.626 @ #Dec. 878
c NEW SOLUTION FOUND: 401 @ 0.63 @ #Dec. 879
c NEW SOLUTION FOUND: 399 @ 0.635 @ #Dec. 880
c NEW SOLUTION FOUND: 397 @ 0.639 @ #Dec. 881
c NEW SOLUTION FOUND: 384 @ 0.644 @ #Dec. 882
c NEW SOLUTION FOUND: 383 @ 0.652 @ #Dec. 884
c NEW SOLUTION FOUND: 382 @ 0.661 @ #Dec. 886
c NEW SOLUTION FOUND: 381 @ 0.701 @ #Dec. 897
c NEW SOLUTION FOUND: 324 @ 0.702 @ #Dec. 898
c Restart #1 #Var: 203 #Dec: 1199 LB: 0 @ 0.997
c NEW SOLUTION FOUND: 310 @ 1.034 @ #Dec. 1237
c NEW SOLUTION FOUND: 308 @ 1.041 @ #Dec. 1266
c NEW SOLUTION FOUND: 306 @ 1.057 @ #Dec. 1330
c NEW SOLUTION FOUND: 291 @ 1.154 @ #Dec. 1626
c Restart #2 #Var: 203 #Dec: 2109 LB: 0 @ 1.312
c NEW SOLUTION FOUND: 143 @ 1.371 @ #Dec. 2117
c NEW SOLUTION FOUND: 141 @ 1.383 @ #Dec. 2118
c NEW SOLUTION FOUND: 87 @ 1.398 @ #Dec. 2120
c Restart #3 #Var: 195 #Dec: 4365 LB: 0 @ 3.334
c Restart #4 #Var: 193 #Dec: 7360 LB: 0 @ 5.17
c Restart #5 #Var: 193 #Dec: 11893 LB: 0 @ 6.528
c Restart #6 #Var: 193 #Dec: 15830 LB: 0 @ 9.459
c CHANGE to MIS mode... 	UB: 87	MIS: 57	LPR: 31 (0.016)	Diff: 1.8387
c Restart #0 #Var: 110 #Dec: 18588 LB: 0 @ 14.678
s OPTIMUM FOUND
v -x0 -x1 -x2 -x3 -x4 -x5 -x6 -x7 -x8 -x9 -x10 -x11 -x12 -x13 -x14 -x15 -x16 -x17 -x18 -x19 -x20 -x21 -x22 -x23 -x24 -x25 -x26 -x27 -x28 -x29 -x30 -x31 -x32 -x33 -x34 -x35 -x36 -x37 -x38 -x39 -x40 -x41 -x42 -x43 -x44 -x45 -x46 -x47 -x48 -x49 -x50 -x51 -x52 -x53 -x54 -x55 -x56 -x57 -x58 -x59 -x60 -x61 -x62 -x63 -x64 -x65 -x66 -x67 -x68 -x69 -x70 -x71 -x72 -x73 -x74 -x75 -x76 -x77 -x78 -x79 -x80 -x81 -x82 -x83 -x84 -x85 -x86 -x87 -x88 -x89 -x90 -x91 -x92 -x93 -x94 -x95 -x96 -x97 -x98 -x99 -x100 -x101 -x102 -x103 -x104 -x105 -x106 -x107 -x108 -x109 -x110 -x111 -x112 -x113 -x114 -x115 -x116 -x117 -x118 -x119 -x120 -x121 -x122 -x123 -x124 -x125 -x126 -x127 -x128 -x129 -x130 -x131 -x132 -x133 -x134 -x135 -x136 -x137 -x138 -x139 -x140 -x141 -x142 -x143 -x144 -x145 -x146 -x147 -x148 -x149 -x150 -x151 -x152 -x153 -x154 -x155 -x156 -x157 -x158 -x159 -x160 -x161 -x162 -x163 -x164 -x165 -x166 -x167 -x168 -x169 -x170 -x171 -x172 -x173 -x174 -x175 -x176 -x177 -x178 -x179 -x180 -x181 -x182 -x183 -x184 -x185 -x186 -x187 -x188 -x189 -x190 -x191 -x192 -x193 -x194 -x195 -x196 -x197 -x198 -x199 -x200 -x201 -x202 -x203 -x204 -x205 -x206 -x207 -x208 -x209 -x210 -x211 -x212 -x213 -x214 -x215 -x216 -x217 -x218 -x219 -x220 -x221 -x222 -x223 -x224 -x225 -x226 -x227 -x228 -x229 -x230 -x231 -x232 -x233 -x234 -x235 -x236 -x237 -x238 -x239 -x240 -x241 -x242 -x243 -x244 -x245 -x246 -x247 -x248 -x249 -x250 -x251 -x252 -x253 -x254 -x255 -x256 -x257 -x258 -x259 -x260 -x261 -x262 -x263 -x264 -x265 -x266 -x267 -x268 -x269 -x270 -x271 -x272 -x273 -x274 -x275 -x276 -x277 -x278 -x279 -x280 -x281 -x282 -x283 -x284 -x285 -x286 -x287 -x288 -x289 -x290 -x291 -x292 -x293 -x294 -x295 -x296 -x297 -x298 -x299 -x300 -x301 -x302 -x303 -x304 -x305 -x306 -x307 -x308 -x309 -x310 -x311 -x312 -x313 -x314 -x315 -x316 -x317 x318 
c Cost: 87
c Exit Code: 30
c Total time: 14.701 s

Watcher Data

Enforcing CPU limit (will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime (will send SIGXCPU) limit: 1230 seconds
Enforcing Stack size limit: 67108864 bytes
Enforcing memory limit (will send SIGTERM then SIGKILL): 921600 Kb
Enforcing VSIZE limit: 994918400 bytes
Current StackSize limit: 67108864 bytes
Raw data (/proc/2450/stat): 2450 (bsolo) R 2449 2450 1333 0 -1 0 19 0 0 0 0 0 0 0 22 0 1 0 1781914766 438272 3 4294967295 134512640 134736556 3221224576 3221224576 1073744960 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/2450/statm): 107 3 90 68 0 39 0
[pid=2450] vsize: 428
open syscall for file /etc/ld.so.preload
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open syscall for file /oldhome/oroussel/tmp/wulflinc13/normalized-mod008.opb

[startup+10.0033 s]
Raw data (loadavg): 0.93 0.97 0.91 2/56 2450
Raw data (/proc/2450/stat): 2450 (bsolo) R 2449 2450 1333 0 -1 0 2378 0 0 0 913 32 0 0 25 0 1 0 1781914766 12791808 2289 4294967295 134512640 134736556 3221224576 3221223264 134544763 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/2450/statm): 3123 2289 1116 68 0 3055 0
[pid=2450] vsize: 12492
Current children cumulated CPU time (s) 9.45
Current children cumulated vsize (Kb) 12492
One traced child (pid=2450) exited with status: 30
All traced children have exited ! Game is over.

Child status: 30
Real time (s): 15.3749
CPU time (s): 14.7188
CPU user time (s): 14.3008
CPU system time (s): 0.417936
CPU usage (%): 95.7326
Max. virtual memory (cumulated for all children) (Kb): 12492

Verifier Data

Verifier:	OK	87