Trace number 453355

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
PB-clasp 2007-03-23Wrong Cert. 10.2714 10.5928

General information on the benchmark

Namenormalized-PB07/OPT-SMALLINT-NLC/submittedPB07/
manquinho/mds/normalized-mds_50_25_3.opb
MD5SUMda214a3f088b29c437fc8e7d0ee2cf8a
Bench CategoryOPT-SMALLINT-NLC (optimisation, small integers, non linear constraints)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark2
Best CPU time to get the best result obtained on this benchmark0.207968
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 2
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 constraint26
Maximum length of a constraint38
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)1476
Sum of products size (including duplicates)2952
Number of different products1476
Sum of products size2952

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)

0.24/0.46	o 50
0.43/0.65	o 49
0.62/0.85	o 48
1.04/1.11	o 47
1.07/1.36	o 46
1.27/1.55	o 45
1.46/1.75	o 44
1.66/1.95	o 43
1.98/2.15	o 42
2.05/2.35	o 41
2.23/2.55	o 40
2.46/2.75	o 39
2.65/2.95	o 38
2.86/3.16	o 37
3.17/3.36	o 36
3.24/3.56	o 35
3.46/3.78	o 34
3.65/3.99	o 33
3.85/4.19	o 32
4.15/4.39	o 31
4.25/4.60	o 30
4.45/4.80	o 29
4.65/5.00	o 28
4.86/5.21	o 27
5.24/5.41	o 26
5.27/5.67	o 25
5.47/5.88	o 24
5.67/6.08	o 23
5.88/6.29	o 22
6.07/6.50	o 21
6.28/6.70	o 20
6.48/6.91	o 19
6.68/7.11	o 18
6.88/7.31	o 17
7.08/7.52	o 16
7.43/7.72	o 15
7.47/7.93	o 14
7.67/8.13	o 13
7.87/8.33	o 12
8.07/8.53	o 11
8.42/8.73	o 10
8.48/8.93	o 9
8.68/9.13	o 8
8.87/9.37	o 7
9.06/9.57	o 6
9.26/9.77	o 5
9.57/9.96	o 4
9.66/10.16	o 3
9.85/10.36	o 2
10.06/10.59	s OPTIMUM FOUND
10.06/10.59	v x1 x7 x85 x87 x120 x136 x152 x186 x219 x231 x295 x322 x354 x356 x387 x420 x453 x488 x513 x546 x552 x579 x607 x636 x642 x668 x697
10.06/10.59	v x701 x735 x759 x763 x789 x793 x822 x827 x853 x855 x881 x915 x941 x967 x996 x1028 x1056 x1083 x1106 x1110 x1134 x1138 x1160 x1164
10.06/10.59	v x1187 x1215 x1220 x1242 x1246 x1269 x1274 x1295 x1299 x1323 x1328 x1350 x1353 x1379 x1401 x1426 x1451 x1476 x1482 x1506

Verifier Data (download as text)

FAILED
ERROR: unsatisfied constraint on line 0
	0>=1

Falsified constraint is:
+1*x1[=1]*~x2[=0]+1*~x2[=0]*x25[=0]+1*~x2[=0]*x7[=1]+1*~x2[=0]*x12[=0]+1*~x2[=0]*x16[=0]+1*~x2[=0]*x29[=0]+1*~x2[=0]*x41[=0]+1*~x2[=0]*x19[=0]+1*~x2[=0]*x45[=0]+1*~x2[=0]*x49[=0]+1*~x2[=0]*x43[=0]+1*~x2[=0]*x38[=0]+1*~x2[=0]*x39[=0]+1*~x2[=0]*x48[=0]+1*~x2[=0]*x32[=0]+1*~x2[=0]*x3[=0]+1*~x2[=0]*x23[=0]+1*~x2[=0]*x33[=0]+1*~x2[=0]*x50[=0]+1*~x2[=0]*x40[=0]+1*~x2[=0]*x37[=0]+1*~x2[=0]*x36[=0]+1*~x2[=0]*x5[=0]+1*~x2[=0]*x42[=0]+1*~x2[=0]*x22[=0]+1*~x2[=0]*x4[=0]+1*~x2[=0]*x6[=0]+1*~x2[=0]*x8[=0]+1*~x2[=0]*x13[=0]+1*~x2[=0]*x14[=0]+1*~x2[=0]*x15[=0]+1*~x2[=0]*x17[=0]+1*~x2[=0]*x27[=0]+1*~x2[=0]*x28[=0]+1*~x2[=0]*x47[=0]+1*x2[=0] >= 1

Conversion Script Data (download as text)

Linearizing /tmp/evaluation/453355-1178133435/instance-453355-1178133435.opb

Watcher Data (download as text)

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

command line: runsolver --timestamp -w ROOT/results/node5/watcher-453355-1178133435 -o ROOT/results/node5/solver-453355-1178133435 -C 1800 -W 3600 -M 1800 --output-limit 1,15 pbclasp instance-453355-1178133435.opb /tmp/evaluation/453355-1178133435/temp 

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: 1.06 1.07 1.01 3/77 17730
/proc/meminfo: memFree=1747200/2055920 swapFree=4150044/4192956
[pid=17730] ppid=17728 vsize=12268 CPUtime=0
/proc/17730/stat : 17730 (pbclasp) R 17728 17730 16803 0 -1 4194304 350 0 0 0 0 0 0 0 18 0 1 0 289381179 12562432 317 18446744073709551615 4194304 4206940 548682069168 18446744073709551615 226913647205 0 0 4224 0 0 0 0 17 1 0 0
/proc/17730/statm: 3067 317 242 3 0 167 0

[startup+0.0240561 s]
/proc/loadavg: 1.06 1.07 1.01 3/77 17730
/proc/meminfo: memFree=1747200/2055920 swapFree=4150044/4192956
[pid=17730] ppid=17728 vsize=12400 CPUtime=0
/proc/17730/stat : 17730 (pbclasp) S 17728 17730 16803 0 -1 4194304 502 0 0 0 0 0 0 0 16 0 1 0 289381179 12697600 454 18446744073709551615 4194304 4206940 548682069168 18446744073709551615 226922377314 0 0 4224 16384 18446744071563648864 0 0 17 1 0 0
/proc/17730/statm: 3100 454 324 3 0 200 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 12400

[startup+0.101063 s]
/proc/loadavg: 1.06 1.07 1.01 3/77 17730
/proc/meminfo: memFree=1747200/2055920 swapFree=4150044/4192956
[pid=17730] ppid=17728 vsize=12400 CPUtime=0
/proc/17730/stat : 17730 (pbclasp) S 17728 17730 16803 0 -1 4194304 502 0 0 0 0 0 0 0 16 0 1 0 289381179 12697600 454 18446744073709551615 4194304 4206940 548682069168 18446744073709551615 226922377314 0 0 4224 16384 18446744071563648864 0 0 17 1 0 0
/proc/17730/statm: 3100 454 324 3 0 200 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 12400

[startup+0.301089 s]
/proc/loadavg: 1.06 1.07 1.01 3/77 17730
/proc/meminfo: memFree=1747200/2055920 swapFree=4150044/4192956
[pid=17730] ppid=17728 vsize=12400 CPUtime=0.24
/proc/17730/stat : 17730 (pbclasp) S 17728 17730 16803 0 -1 4194304 585 1591 0 1 0 0 23 1 16 0 1 0 289381179 12697600 475 18446744073709551615 4194304 4206940 548682069168 18446744073709551615 226922381204 0 0 4230 16384 18446744071563356171 0 0 17 0 0 0
/proc/17730/statm: 3100 475 343 3 0 200 0
Current children cumulated CPU time (s) 0.24
Current children cumulated vsize (KiB) 12400

[startup+0.701133 s]
/proc/loadavg: 1.06 1.07 1.01 3/77 17730
/proc/meminfo: memFree=1747200/2055920 swapFree=4150044/4192956
[pid=17730] ppid=17728 vsize=12400 CPUtime=0.62
/proc/17730/stat : 17730 (pbclasp) S 17728 17730 16803 0 -1 4194304 819 6515 0 2 0 0 58 4 16 0 1 0 289381179 12697600 477 18446744073709551615 4194304 4206940 548682069168 18446744073709551615 226922381204 0 0 4230 16384 18446744071563356171 0 0 17 1 0 0
/proc/17730/statm: 3100 477 343 3 0 200 0
Current children cumulated CPU time (s) 0.62
Current children cumulated vsize (KiB) 12400

[startup+1.50122 s]
/proc/loadavg: 1.06 1.07 1.01 2/81 17764
/proc/meminfo: memFree=1742752/2055920 swapFree=4150044/4192956
[pid=17730] ppid=17728 vsize=12400 CPUtime=1.27
/proc/17730/stat : 17730 (pbclasp) S 17728 17730 16803 0 -1 4194304 1170 14421 0 2 0 1 116 10 16 0 1 0 289381179 12697600 479 18446744073709551615 4194304 4206940 548682069168 18446744073709551615 226922381204 0 0 4230 16384 18446744071563356171 0 0 17 1 0 0
/proc/17730/statm: 3100 479 343 3 0 200 0
Current children cumulated CPU time (s) 1.27
Current children cumulated vsize (KiB) 12400

[startup+3.1014 s]
/proc/loadavg: 1.05 1.06 1.01 2/81 17804
/proc/meminfo: memFree=1743136/2055920 swapFree=4150044/4192956
[pid=17730] ppid=17728 vsize=12528 CPUtime=2.86
/proc/17730/stat : 17730 (pbclasp) S 17728 17730 16803 0 -1 4194304 2129 34848 0 2 1 2 258 25 17 0 1 0 289381179 12828672 482 18446744073709551615 4194304 4206940 548682069168 18446744073709551615 226922381204 0 0 4230 16384 18446744071563356171 0 0 17 1 0 0
/proc/17730/statm: 3132 482 343 3 0 232 0
Current children cumulated CPU time (s) 2.86
Current children cumulated vsize (KiB) 12528

[startup+6.30177 s]
/proc/loadavg: 1.05 1.06 1.01 2/80 17932
/proc/meminfo: memFree=1741672/2055920 swapFree=4150044/4192956
[pid=17730] ppid=17728 vsize=12528 CPUtime=6.07
/proc/17730/stat : 17730 (pbclasp) S 17728 17730 16803 0 -1 4194304 4057 76503 0 2 4 4 549 50 16 0 1 0 289381179 12828672 483 18446744073709551615 4194304 4206940 548682069168 18446744073709551615 226922377314 0 0 4224 16384 18446744071563648864 0 0 17 1 0 0
/proc/17730/statm: 3132 483 343 3 0 232 0
Current children cumulated CPU time (s) 6.07
Current children cumulated vsize (KiB) 12528

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

[startup+7.90194 s]
/proc/loadavg: 1.05 1.06 1.01 3/81 18020
/proc/meminfo: memFree=1744160/2055920 swapFree=4150044/4192956
[pid=17730] ppid=17728 vsize=12528 CPUtime=7.47
/proc/17730/stat : 17730 (pbclasp) S 17728 17730 16803 0 -1 4194304 4938 95941 0 2 5 5 674 63 16 0 1 0 289381179 12828672 483 18446744073709551615 4194304 4206940 548682069168 18446744073709551615 226922381204 0 0 4230 16384 18446744071563356171 0 0 17 1 0 0
/proc/17730/statm: 3132 483 343 3 0 232 0
Current children cumulated CPU time (s) 7.47
Current children cumulated vsize (KiB) 12528

[startup+9.50113 s]
/proc/loadavg: 1.05 1.06 1.01 2/80 18060
/proc/meminfo: memFree=1742952/2055920 swapFree=4150044/4192956
[pid=17730] ppid=17728 vsize=12528 CPUtime=9.06
/proc/17730/stat : 17730 (pbclasp) S 17728 17730 16803 0 -1 4194304 5906 116582 0 2 6 6 817 77 16 0 1 0 289381179 12828672 483 18446744073709551615 4194304 4206940 548682069168 18446744073709551615 226922381204 0 0 4230 16384 18446744071563356171 0 0 17 1 0 0
/proc/17730/statm: 3132 483 343 3 0 232 0
Current children cumulated CPU time (s) 9.06
Current children cumulated vsize (KiB) 12528

[startup+10.3012 s]
/proc/loadavg: 1.05 1.06 1.01 2/81 18108
/proc/meminfo: memFree=1745312/2055920 swapFree=4150044/4192956
[pid=17730] ppid=17728 vsize=12528 CPUtime=9.85
/proc/17730/stat : 17730 (pbclasp) S 17728 17730 16803 0 -1 4194304 6387 126696 0 2 7 6 888 84 16 0 1 0 289381179 12828672 483 18446744073709551615 4194304 4206940 548682069168 18446744073709551615 226922381204 0 0 4230 16384 18446744071563356171 0 0 17 1 0 0
/proc/17730/statm: 3132 483 343 3 0 232 0
Current children cumulated CPU time (s) 9.85
Current children cumulated vsize (KiB) 12528

[startup+10.5012 s]
/proc/loadavg: 1.05 1.06 1.01 2/81 18108
/proc/meminfo: memFree=1745312/2055920 swapFree=4150044/4192956
[pid=17730] ppid=17728 vsize=12528 CPUtime=10.06
/proc/17730/stat : 17730 (pbclasp) S 17728 17730 16803 0 -1 4194304 6507 129216 0 2 7 7 906 86 16 0 1 0 289381179 12828672 483 18446744073709551615 4194304 4206940 548682069168 18446744073709551615 226922381204 0 0 4230 16384 18446744071563356171 0 0 17 1 0 0
/proc/17730/statm: 3132 483 343 3 0 232 0
Current children cumulated CPU time (s) 10.06
Current children cumulated vsize (KiB) 12528

Child status: 0
Real time (s): 10.5928
CPU time (s): 10.2714
CPU user time (s): 9.32558
CPU system time (s): 0.945856
CPU usage (%): 96.9658
Max. virtual memory (cumulated for all children) (KiB): 25628

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 9.32558
system time used= 0.945856
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 137654
page faults= 2
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 3980
involuntary context switches= 1878

runsolver used 0.013997 second user time and 0.036994 second system time

The end

Launcher Data (download as text)

Begin job on node5 on Wed May  2 19:17:15 UTC 2007

IDJOB= 453355
IDBENCH= 48125
IDSOLVER= 158
FILE ID= node5/453355-1178133435

PBS_JOBID= 4751054

Free space on /tmp= 66564 MiB

SOLVER NAME= PB-clasp 2007-03-23
BENCH NAME= HOME/pub/bench/PB07/normalized-PB07/OPT-SMALLINT-NLC/submittedPB07/manquinho/mds/normalized-mds_50_25_3.opb
COMMAND LINE= pbclasp instance-453355-1178133435.opb /tmp/evaluation/453355-1178133435/temp
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node5/convwatcher-453355-1178133435 -o ROOT/results/node5/conversion-453355-1178133435 -C 600 -M 1800 PBconversionToLinear /tmp/evaluation/453355-1178133435/instance-453355-1178133435.opb
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node5/watcher-453355-1178133435 -o ROOT/results/node5/solver-453355-1178133435 -C 1800 -W 3600 -M 1800 --output-limit 1,15  pbclasp instance-453355-1178133435.opb /tmp/evaluation/453355-1178133435/temp

META MD5SUM SOLVER= 814f1745fa20958d8b352781cfa0403e
MD5SUM BENCH=  da214a3f088b29c437fc8e7d0ee2cf8a

RANDOM SEED= 516102737

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node5.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		: 3000.232
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		: 3000.232
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:       1747608 kB
Buffers:        131020 kB
Cached:          68344 kB
SwapCached:      11368 kB
Active:         111672 kB
Inactive:       115944 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1747608 kB
SwapTotal:     4192956 kB
SwapFree:      4150044 kB
Dirty:            1356 kB
Writeback:           0 kB
Mapped:          33104 kB
Slab:            66284 kB
Committed_AS: 13698016 kB
PageTables:       1728 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= 66563 MiB

End job on node5 on Wed May  2 19:17:26 UTC 2007