Trace number 454103

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
minisat+ 1.14OPT-12 0.263959 0.266179

General information on the benchmark

Namenormalized-PB07/OPT-SMALLINT-NLC/submittedPB07/
manquinho/mis/normalized-mis_50_10_1.opb
MD5SUM85943b997cdad21dc5e2becf1aafbf8b
Bench CategoryOPT-SMALLINT-NLC (optimisation, small integers, non linear constraints)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark-12
Best CPU time to get the best result obtained on this benchmark0.174972
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function -12
Optimality of the best value was proved YES
Number of variables50
Total number of constraints50
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 constraints50
Minimum length of a constraint10
Maximum length of a constraint18
Number of terms in the objective function 50
Biggest coefficient in the objective function 1
Number of bits for the biggest coefficient in the objective function 1
Sum of the numbers in the objective function 50
Number of bits of the sum of numbers in the objective function 6
Biggest number in a constraint 1
Number of bits of the biggest number in a constraint 1
Biggest sum of numbers in a constraint 50
Number of bits of the biggest sum of numbers6
Number of products (including duplicates)610
Sum of products size (including duplicates)1220
Number of different products305
Sum of products size610

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)

0.00/0.00	c Parsing PB file...
0.00/0.01	c Converting 305 PB-constraints to clauses...
0.00/0.01	c   -- Unit propagations: (none)
0.00/0.01	c   -- Detecting intervals from adjacent constraints: (none)
0.00/0.02	c   -- Clauses(.)/Splits(s): .................................................................................................................................................................................................................................................................................................................
0.00/0.02	c ==================================[MINISAT+]==================================
0.00/0.02	c | Conflicts | Original         | Learnt                           | Progress |
0.00/0.02	c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
0.00/0.02	c ==============================================================================
0.00/0.02	c |         0 |     305      610 |     101       0        0     nan |  0.000 % |
0.00/0.02	c ==============================================================================
0.00/0.02	c Found solution: -10
0.00/0.02	o -10
0.00/0.02	c ---[   0]---> Sorter-cost:  806     Base:
0.00/0.02	c ==================================[MINISAT+]==================================
0.00/0.02	c | Conflicts | Original         | Learnt                           | Progress |
0.00/0.02	c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
0.00/0.02	c ==============================================================================
0.00/0.02	c |         0 |    1073     2432 |     357       0        0     nan |  0.000 % |
0.00/0.02	c ==============================================================================
0.00/0.02	c Found solution: -11
0.00/0.02	o -11
0.00/0.02	c ---[   0]---> Sorter-cost:    0     Base:
0.00/0.03	c ==================================[MINISAT+]==================================
0.00/0.03	c | Conflicts | Original         | Learnt                           | Progress |
0.00/0.03	c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
0.00/0.03	c ==============================================================================
0.00/0.03	c |        57 |    1064     2447 |     354      52      904    17.4 |  0.000 % |
0.00/0.03	c |       157 |    1020     2354 |     389     148     2558    17.3 | 40.474 % |
0.00/0.04	c |       307 |    1020     2354 |     428     298     5380    18.1 | 40.475 % |
0.00/0.06	c |       532 |    1015     2343 |     471     276     4944    17.9 | 40.828 % |
0.06/0.08	c ==============================================================================
0.06/0.08	c Found solution: -12
0.06/0.08	o -12
0.06/0.08	c ---[   0]---> Sorter-cost:    0     Base:
0.06/0.08	c ==================================[MINISAT+]==================================
0.06/0.08	c | Conflicts | Original         | Learnt                           | Progress |
0.06/0.08	c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
0.06/0.08	c ==============================================================================
0.06/0.08	c |       789 |     986     2273 |     328     529    12237    23.1 | 40.828 % |
0.06/0.08	c |       889 |     981     2262 |     360     597    13304    22.3 | 43.307 % |
0.06/0.09	c |      1040 |     981     2262 |     396     748    16312    21.8 | 43.323 % |
0.09/0.11	c |      1265 |     981     2262 |     436     509     7957    15.6 | 43.327 % |
0.09/0.14	c |      1602 |     981     2262 |     480     846    14662    17.3 | 43.317 % |
0.09/0.17	c |      2109 |     943     2178 |     528     792    11621    14.7 | 45.784 % |
0.19/0.22	c |      2869 |     875     2033 |     581     857    11018    12.9 | 48.826 % |
0.19/0.26	c ==============================================================================
0.19/0.26	c Optimal solution: -12
0.19/0.26	s OPTIMUM FOUND
0.19/0.26	v -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
0.19/0.26	v 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
0.19/0.26	v -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
0.19/0.26	v -x83 -x84 -x85 -x86 -x87 -x88 -x89 -x90 -x91 -x92 -x93 -x94 -x95 -x96 -x97 -x98 -x99 -x100 -x101 -x102 -x103 -x104 -x105 -x106
0.19/0.26	v -x107 -x108 -x109 -x110 -x111 -x112 -x113 -x114 -x115 -x116 -x117 -x118 -x119 -x120 -x121 -x122 -x123 -x124 -x125 -x126 -x127
0.19/0.26	v -x128 -x129 -x130 -x131 -x132 -x133 -x134 -x135 -x136 -x137 -x138 -x139 -x140 -x141 -x142 -x143 -x144 -x145 -x146 -x147 -x148
0.19/0.26	v -x149 -x150 -x151 -x152 -x153 -x154 -x155 -x156 -x157 -x158 -x159 -x160 -x161 -x162 -x163 -x164 -x165 -x166 -x167 -x168 -x169
0.19/0.26	v -x170 -x171 -x172 -x173 -x174 -x175 -x176 -x177 -x178 -x179 -x180 -x181 -x182 -x183 -x184 -x185 -x186 -x187 -x188 -x189 -x190
0.19/0.26	v -x191 -x192 -x193 -x194 -x195 -x196 -x197 -x198 -x199 -x200 -x201 -x202 -x203 -x204 -x205 -x206 -x207 -x208 -x209 -x210 -x211
0.19/0.26	v -x212 -x213 -x214 -x215 -x216 -x217 -x218 -x219 -x220 -x221 -x222 -x223 -x224 -x225 -x226 -x227 -x228 -x229 -x230 -x231 -x232
0.19/0.26	v -x233 -x234 -x235 -x236 -x237 -x238 -x239 -x240 -x241 -x242 -x243 -x244 -x245 -x246 -x247 -x248 -x249 -x250 -x251 -x252 -x253
0.19/0.26	v -x254 -x255 -x256 -x257 -x258 -x259 -x260 -x261 -x262 -x263 -x264 -x265 -x266 -x267 -x268 -x269 -x270 -x271 -x272 -x273 -x274
0.19/0.26	v -x275 -x276 -x277 -x278 -x279 -x280 -x281 -x282 -x283 -x284 -x285 -x286 -x287 -x288 -x289 -x290 -x291 -x292 -x293 -x294 -x295
0.19/0.26	v -x296 -x297 -x298 -x299 -x300 -x301 -x302 -x303 -x304 -x305 -x306 -x307 -x308 -x309 -x310 -x311 -x312 -x313 -x314 -x315 -x316
0.19/0.26	v -x317 -x318 -x319 -x320 -x321 -x322 -x323 -x324 -x325 -x326 -x327 -x328 -x329 -x330 -x331 -x332 -x333 -x334 -x335 -x336 -x337
0.19/0.26	v -x338 -x339 -x340 -x341 -x342 -x343 -x344 -x345 -x346 -x347 -x348 -x349 -x350 -x351 -x352 -x353 -x354 -x355
0.19/0.26	c _______________________________________________________________________________
0.19/0.26	c 
0.19/0.26	c restarts              : 13
0.19/0.26	c conflicts             : 3395           (12911 /sec)
0.19/0.26	c decisions             : 4333           (16478 /sec)
0.19/0.26	c propagations          : 0              (0 /sec)
0.19/0.26	c inspects              : 0              (0 /sec)
0.19/0.26	c CPU time              : 0.26296 s
0.19/0.26	c _______________________________________________________________________________

Verifier Data (download as text)

OK	-12

Conversion Script Data (download as text)

Linearizing /tmp/evaluation/454103-1178021367/instance-454103-1178021367.opb

Watcher Data (download as text)

runsolver version 3.2.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node62/watcher-454103-1178021367 -o ROOT/results/node62/solver-454103-1178021367 -C 1800 -W 3600 -M 1800 --output-limit 1,15 /tmp/evaluation/454103-1178021367/minisat+ /tmp/evaluation/454103-1178021367/instance-454103-1178021367.opb 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 3600 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 1843200 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 1894400 KiB
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.79 0.95 0.96 3/64 17914
/proc/meminfo: memFree=1805208/2055920 swapFree=4184544/4192956
[pid=17914] ppid=17912 vsize=1048 CPUtime=0
/proc/17914/stat : 17914 (minisat+) R 17912 17914 17784 0 -1 4194304 111 0 0 0 0 0 0 0 18 0 1 0 120712689 1073152 97 18446744073709551615 134512640 135395479 4294956672 18446744073709551615 135005902 0 0 4096 16386 0 0 0 17 1 0 0
/proc/17914/statm: 262 97 73 215 0 44 0

[startup+0.0711429 s]
/proc/loadavg: 0.79 0.95 0.96 3/64 17914
/proc/meminfo: memFree=1805208/2055920 swapFree=4184544/4192956
[pid=17914] ppid=17912 vsize=1332 CPUtime=0.06
/proc/17914/stat : 17914 (minisat+) R 17912 17914 17784 0 -1 4194304 219 0 0 0 6 0 0 0 18 0 1 0 120712689 1363968 205 18446744073709551615 134512640 135395479 4294956672 18446744073709551615 134574367 0 0 4096 16386 0 0 0 17 1 0 0
/proc/17914/statm: 333 205 110 215 0 115 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 1332

[startup+0.101146 s]
/proc/loadavg: 0.79 0.95 0.96 3/64 17914
/proc/meminfo: memFree=1805208/2055920 swapFree=4184544/4192956
[pid=17914] ppid=17912 vsize=1332 CPUtime=0.09
/proc/17914/stat : 17914 (minisat+) R 17912 17914 17784 0 -1 4194304 232 0 0 0 9 0 0 0 18 0 1 0 120712689 1363968 218 18446744073709551615 134512640 135395479 4294956672 18446744073709551615 134574376 0 0 4096 16386 0 0 0 17 1 0 0
/proc/17914/statm: 333 218 110 215 0 115 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1332

Solver just ended. Dumping a history of the last processes samples

[startup+0.201158 s]
/proc/loadavg: 0.79 0.95 0.96 3/64 17914
/proc/meminfo: memFree=1805208/2055920 swapFree=4184544/4192956
[pid=17914] ppid=17912 vsize=1332 CPUtime=0.19
/proc/17914/stat : 17914 (minisat+) R 17912 17914 17784 0 -1 4194304 237 0 0 0 19 0 0 0 18 0 1 0 120712689 1363968 223 18446744073709551615 134512640 135395479 4294956672 18446744073709551615 134580935 0 0 4096 16386 0 0 0 17 1 0 0
/proc/17914/statm: 333 223 110 215 0 115 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 1332

Child status: 30
Real time (s): 0.266179
CPU time (s): 0.263959
CPU user time (s): 0.26296
CPU system time (s): 0.000999
CPU usage (%): 99.166
Max. virtual memory (cumulated for all children) (KiB): 1332

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.26296
system time used= 0.000999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 243
page faults= 0
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 9
involuntary context switches= 0

runsolver used 0.002999 second user time and 0.006998 second system time

The end

Launcher Data (download as text)

Begin job on node62 on Tue May  1 12:09:27 UTC 2007

IDJOB= 454103
IDBENCH= 48175
IDSOLVER= 156
FILE ID= node62/454103-1178021367

PBS_JOBID= 4728387

Free space on /tmp= 66562 MiB

SOLVER NAME= minisat+ 1.14
BENCH NAME= HOME/pub/bench/PB07/normalized-PB07/OPT-SMALLINT-NLC/submittedPB07/manquinho/mis/normalized-mis_50_10_1.opb
COMMAND LINE= /tmp/evaluation/454103-1178021367/minisat+ /tmp/evaluation/454103-1178021367/instance-454103-1178021367.opb            
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node62/convwatcher-454103-1178021367 -o ROOT/results/node62/conversion-454103-1178021367 -C 600 -M 1800 PBconversionToLinear /tmp/evaluation/454103-1178021367/instance-454103-1178021367.opb
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node62/watcher-454103-1178021367 -o ROOT/results/node62/solver-454103-1178021367 -C 1800 -W 3600 -M 1800 --output-limit 1,15  /tmp/evaluation/454103-1178021367/minisat+ /tmp/evaluation/454103-1178021367/instance-454103-1178021367.opb            

META MD5SUM SOLVER= e46aded85e5f265b61da9cdcce06370e
MD5SUM BENCH=  85943b997cdad21dc5e2becf1aafbf8b

RANDOM SEED= 729757587

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node62.alineos.net 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005 x86_64 x86_64 x86_64 GNU/Linux

/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		: 3000.216
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		: 3000.216
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:       1805616 kB
Buffers:         28272 kB
Cached:         149632 kB
SwapCached:       2296 kB
Active:          76340 kB
Inactive:       111148 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1805616 kB
SwapTotal:     4192956 kB
SwapFree:      4184544 kB
Dirty:            2736 kB
Writeback:           0 kB
Mapped:          15864 kB
Slab:            48776 kB
Committed_AS:  1370684 kB
PageTables:       1460 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66562 MiB

End job on node62 on Tue May  1 12:09:27 UTC 2007