Trace number 453550

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. 10.1695 10.3498

General information on the benchmark

Namenormalized-PB07/OPT-SMALLINT-NLC/submittedPB07/
manquinho/mds/normalized-mds_50_25_5.opb
MD5SUMf4c69768619389ba083d2740787a0405
Bench CategoryOPT-SMALLINT-NLC (optimisation, small integers, non linear constraints)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark3
Best CPU time to get the best result obtained on this benchmark0.306952
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 3
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 constraint36
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)1464
Sum of products size (including duplicates)2928
Number of different products1464
Sum of products size2928

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)

0.24/0.44	o 50
0.43/0.63	o 49
0.61/0.82	o 48
0.96/1.08	o 47
1.05/1.28	o 46
1.25/1.47	o 45
1.44/1.67	o 44
1.66/1.87	o 43
1.84/2.08	o 42
2.14/2.27	o 41
2.24/2.47	o 40
2.42/2.67	o 39
2.62/2.87	o 38
2.83/3.07	o 37
3.13/3.27	o 36
3.22/3.47	o 35
3.43/3.69	o 34
3.61/3.89	o 33
3.82/4.09	o 32
4.02/4.28	o 31
4.20/4.49	o 30
4.39/4.70	o 29
4.79/4.90	o 28
4.98/5.10	o 27
4.98/5.30	o 26
5.34/5.51	o 25
5.38/5.71	o 24
5.59/5.91	o 23
5.78/6.10	o 22
5.98/6.31	o 21
6.35/6.51	o 20
6.37/6.70	o 19
6.57/6.91	o 18
6.77/7.11	o 17
6.98/7.31	o 16
7.17/7.51	o 15
7.53/7.71	o 14
7.57/7.90	o 13
7.76/8.10	o 12
7.95/8.30	o 11
8.14/8.49	o 10
8.33/8.69	o 9
8.62/8.88	o 8
8.71/9.08	o 7
8.90/9.27	o 6
9.10/9.46	o 5
9.30/9.65	o 4
9.60/9.85	o 3
9.67/10.34	s OPTIMUM FOUND
9.67/10.34	v x1 x2 x3 x151 x152 x153 x183 x184 x213 x244 x274 x275 x276 x306 x307 x308 x340 x341 x373 x374 x375 x401 x402 x434 x435 x436 x466
9.67/10.34	v x467 x499 x500 x534 x535 x536 x566 x595 x596 x626 x627 x656 x657 x687 x688 x716 x749 x750 x775 x776 x803 x804 x832 x833 x834 x864
9.67/10.34	v x865 x893 x894 x895 x923 x924 x925 x952 x953 x980 x1009 x1036 x1065 x1066 x1067 x1092 x1093 x1094 x1121 x1147 x1148 x1176 x1177
9.67/10.34	v x1202 x1203 x1229 x1230 x1256 x1257 x1283 x1284 x1309 x1334 x1335 x1361 x1362 x1387 x1413 x1414 x1439 x1464 x1465 x1490 x1491

Verifier Data (download as text)

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

Falsified constraint is:
+1*x1[=1]*~x4[=0]+1*x2[=1]*~x4[=0]+1*x3[=1]*~x4[=0]+1*~x4[=0]*x29[=0]+1*~x4[=0]*x47[=0]+1*~x4[=0]*x48[=0]+1*~x4[=0]*x17[=0]+1*~x4[=0]*x33[=0]+1*~x4[=0]*x8[=0]+1*~x4[=0]*x40[=0]+1*~x4[=0]*x43[=0]+1*~x4[=0]*x27[=0]+1*~x4[=0]*x18[=0]+1*~x4[=0]*x45[=0]+1*~x4[=0]*x22[=0]+1*~x4[=0]*x15[=0]+1*~x4[=0]*x49[=0]+1*~x4[=0]*x31[=0]+1*~x4[=0]*x46[=0]+1*~x4[=0]*x37[=0]+1*~x4[=0]*x38[=0]+1*~x4[=0]*x28[=0]+1*~x4[=0]*x42[=0]+1*~x4[=0]*x16[=0]+1*~x4[=0]*x19[=0]+1*~x4[=0]*x7[=0]+1*~x4[=0]*x10[=0]+1*~x4[=0]*x21[=0]+1*~x4[=0]*x25[=0]+1*~x4[=0]*x32[=0]+1*~x4[=0]*x39[=0]+1*~x4[=0]*x41[=0]+1*x4[=0] >= 1

Conversion Script Data (download as text)

Linearizing /tmp/evaluation/453550-1178142697/instance-453550-1178142697.opb

Watcher Data (download as text)

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

command line: runsolver --timestamp -w ROOT/results/node7/watcher-453550-1178142697 -o ROOT/results/node7/solver-453550-1178142697 -C 1800 -W 3600 -M 1800 --output-limit 1,15 pbclasp instance-453550-1178142697.opb /tmp/evaluation/453550-1178142697/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: 0.81 0.89 0.94 3/77 15463
/proc/meminfo: memFree=1663784/2055920 swapFree=4157020/4192956
[pid=15463] ppid=15461 vsize=12268 CPUtime=0
/proc/15463/stat : 15463 (pbclasp) D 15461 15463 13827 0 -1 4194304 350 0 0 0 0 0 0 0 18 0 1 0 290307336 12562432 317 18446744073709551615 4194304 4206940 548682069168 18446744073709551615 244671281765 0 2147483391 4224 0 18446744072099781622 0 0 17 1 0 0
/proc/15463/statm: 3067 317 242 3 0 167 0

[startup+0.0107689 s]
/proc/loadavg: 0.81 0.89 0.94 3/77 15463
/proc/meminfo: memFree=1663784/2055920 swapFree=4157020/4192956
[pid=15463] ppid=15461 vsize=12400 CPUtime=0
/proc/15463/stat : 15463 (pbclasp) R 15461 15463 13827 0 -1 4194304 485 0 0 0 0 0 0 0 18 0 1 0 290307336 12697600 452 18446744073709551615 4194304 4206940 548682069168 18446744073709551615 244671113887 0 0 4224 16384 0 0 0 17 1 0 0
/proc/15463/statm: 3100 452 323 3 0 200 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 12400

[startup+0.10178 s]
/proc/loadavg: 0.81 0.89 0.94 3/77 15463
/proc/meminfo: memFree=1663784/2055920 swapFree=4157020/4192956
[pid=15463] ppid=15461 vsize=12400 CPUtime=0
/proc/15463/stat : 15463 (pbclasp) S 15461 15463 13827 0 -1 4194304 502 0 0 0 0 0 0 0 16 0 1 0 290307336 12697600 454 18446744073709551615 4194304 4206940 548682069168 18446744073709551615 244680011874 0 0 4224 16384 18446744071563648864 0 0 17 1 0 0
/proc/15463/statm: 3100 454 324 3 0 200 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 12400

[startup+0.301812 s]
/proc/loadavg: 0.81 0.89 0.94 3/77 15463
/proc/meminfo: memFree=1663784/2055920 swapFree=4157020/4192956
[pid=15463] ppid=15461 vsize=12400 CPUtime=0.24
/proc/15463/stat : 15463 (pbclasp) S 15461 15463 13827 0 -1 4194304 586 1592 0 0 0 0 23 1 16 0 1 0 290307336 12697600 475 18446744073709551615 4194304 4206940 548682069168 18446744073709551615 244680015764 0 0 4230 16384 18446744071563356171 0 0 17 0 0 0
/proc/15463/statm: 3100 475 343 3 0 200 0
Current children cumulated CPU time (s) 0.24
Current children cumulated vsize (KiB) 12400

[startup+0.701845 s]
/proc/loadavg: 0.81 0.89 0.94 3/77 15463
/proc/meminfo: memFree=1663784/2055920 swapFree=4157020/4192956
[pid=15463] ppid=15461 vsize=12400 CPUtime=0.61
/proc/15463/stat : 15463 (pbclasp) S 15461 15463 13827 0 -1 4194304 818 6513 0 0 0 0 57 4 16 0 1 0 290307336 12697600 477 18446744073709551615 4194304 4206940 548682069168 18446744073709551615 244680015764 0 0 4230 16384 18446744071563356171 0 0 17 0 0 0
/proc/15463/statm: 3100 477 343 3 0 200 0
Current children cumulated CPU time (s) 0.61
Current children cumulated vsize (KiB) 12400

[startup+1.50193 s]
/proc/loadavg: 0.81 0.89 0.94 2/80 15497
/proc/meminfo: memFree=1659152/2055920 swapFree=4157020/4192956
[pid=15463] ppid=15461 vsize=12400 CPUtime=1.44
/proc/15463/stat : 15463 (pbclasp) S 15461 15463 13827 0 -1 4194304 1284 16905 0 0 1 0 133 10 16 0 1 0 290307336 12697600 479 18446744073709551615 4194304 4206940 548682069168 18446744073709551615 244680015764 0 0 4230 16384 18446744071563356171 0 0 17 1 0 0
/proc/15463/statm: 3100 479 343 3 0 200 0
Current children cumulated CPU time (s) 1.44
Current children cumulated vsize (KiB) 12400

[startup+3.1011 s]
/proc/loadavg: 0.82 0.90 0.94 2/81 15545
/proc/meminfo: memFree=1662216/2055920 swapFree=4157020/4192956
[pid=15463] ppid=15461 vsize=12528 CPUtime=3.02
/proc/15463/stat : 15463 (pbclasp) S 15461 15463 13827 0 -1 4194304 2241 37324 0 0 2 1 273 26 16 0 1 0 290307336 12828672 481 18446744073709551615 4194304 4206940 548682069168 18446744073709551615 244680015764 0 0 4230 16384 18446744071563356171 0 0 17 1 0 0
/proc/15463/statm: 3132 481 343 3 0 232 0
Current children cumulated CPU time (s) 3.02
Current children cumulated vsize (KiB) 12528

[startup+6.30143 s]
/proc/loadavg: 0.82 0.90 0.94 2/81 15673
/proc/meminfo: memFree=1660552/2055920 swapFree=4157020/4192956
[pid=15463] ppid=15461 vsize=12528 CPUtime=5.98
/proc/15463/stat : 15463 (pbclasp) S 15461 15463 13827 0 -1 4194304 4052 77066 0 0 5 3 539 51 16 0 1 0 290307336 12828672 483 18446744073709551615 4194304 4206940 548682069168 18446744073709551615 244680015764 0 0 4230 16384 18446744071563356171 0 0 17 1 0 0
/proc/15463/statm: 3132 483 343 3 0 232 0
Current children cumulated CPU time (s) 5.98
Current children cumulated vsize (KiB) 12528

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

[startup+7.9016 s]
/proc/loadavg: 0.84 0.90 0.94 2/81 15761
/proc/meminfo: memFree=1660744/2055920 swapFree=4157020/4192956
[pid=15463] ppid=15461 vsize=12528 CPUtime=7.57
/proc/15463/stat : 15463 (pbclasp) S 15461 15463 13827 0 -1 4194304 5038 98243 0 0 7 4 679 67 17 0 1 0 290307336 12828672 483 18446744073709551615 4194304 4206940 548682069168 18446744073709551615 244680015764 0 0 4230 16384 18446744071563356171 0 0 17 0 0 0
/proc/15463/statm: 3132 483 343 3 0 232 0
Current children cumulated CPU time (s) 7.57
Current children cumulated vsize (KiB) 12528

[startup+9.50177 s]
/proc/loadavg: 0.84 0.90 0.94 2/80 15806
/proc/meminfo: memFree=1662224/2055920 swapFree=4157020/4192956
[pid=15463] ppid=15461 vsize=12528 CPUtime=9.3
/proc/15463/stat : 15463 (pbclasp) S 15461 15463 13827 0 -1 4194304 6126 121275 0 0 7 5 835 83 16 0 1 0 290307336 12828672 483 18446744073709551615 4194304 4206940 548682069168 18446744073709551615 244680015764 0 0 4230 16384 18446744071563356171 0 0 17 1 0 0
/proc/15463/statm: 3132 483 343 3 0 232 0
Current children cumulated CPU time (s) 9.3
Current children cumulated vsize (KiB) 12528

[startup+9.90681 s]
/proc/loadavg: 0.84 0.90 0.94 2/81 15849
/proc/meminfo: memFree=1659656/2055920 swapFree=4157020/4192956
[pid=15463] ppid=15461 vsize=12528 CPUtime=9.67
/proc/15463/stat : 15463 (pbclasp) S 15461 15463 13827 0 -1 4194304 6368 126301 0 0 8 5 868 86 16 0 1 0 290307336 12828672 483 18446744073709551615 4194304 4206940 548682069168 18446744073709551615 244680015764 0 0 4230 16384 18446744071563356171 0 0 17 1 0 0
/proc/15463/statm: 3132 483 343 3 0 232 0
Current children cumulated CPU time (s) 9.67
Current children cumulated vsize (KiB) 12528

[startup+10.3019 s]
/proc/loadavg: 0.84 0.90 0.94 2/81 15849
/proc/meminfo: memFree=1659656/2055920 swapFree=4157020/4192956
[pid=15463] ppid=15461 vsize=12528 CPUtime=9.67
/proc/15463/stat : 15463 (pbclasp) S 15461 15463 13827 0 -1 4194304 6368 126301 0 0 8 5 868 86 16 0 1 0 290307336 12828672 483 18446744073709551615 4194304 4206940 548682069168 18446744073709551615 244680015764 0 0 4230 16384 18446744071563356171 0 0 17 1 0 0
/proc/15463/statm: 3132 483 343 3 0 232 0
Current children cumulated CPU time (s) 9.67
Current children cumulated vsize (KiB) 12528

Child status: 0
Real time (s): 10.3498
CPU time (s): 10.1695
CPU user time (s): 9.23959
CPU system time (s): 0.929858
CPU usage (%): 98.2578
Max. virtual memory (cumulated for all children) (KiB): 24956

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 9.23959
system time used= 0.929858
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 134518
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= 3854
involuntary context switches= 1575

runsolver used 0.013997 second user time and 0.035994 second system time

The end

Launcher Data (download as text)

Begin job on node7 on Wed May  2 21:51:37 UTC 2007

IDJOB= 453550
IDBENCH= 48138
IDSOLVER= 158
FILE ID= node7/453550-1178142697

PBS_JOBID= 4751070

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_5.opb
COMMAND LINE= pbclasp instance-453550-1178142697.opb /tmp/evaluation/453550-1178142697/temp
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node7/convwatcher-453550-1178142697 -o ROOT/results/node7/conversion-453550-1178142697 -C 600 -M 1800 PBconversionToLinear /tmp/evaluation/453550-1178142697/instance-453550-1178142697.opb
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node7/watcher-453550-1178142697 -o ROOT/results/node7/solver-453550-1178142697 -C 1800 -W 3600 -M 1800 --output-limit 1,15  pbclasp instance-453550-1178142697.opb /tmp/evaluation/453550-1178142697/temp

META MD5SUM SOLVER= 814f1745fa20958d8b352781cfa0403e
MD5SUM BENCH=  f4c69768619389ba083d2740787a0405

RANDOM SEED= 750671800

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node7.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		: 3000.231
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		: 3000.231
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:       1664256 kB
Buffers:        200808 kB
Cached:          79508 kB
SwapCached:      15756 kB
Active:         194784 kB
Inactive:       109416 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1664256 kB
SwapTotal:     4192956 kB
SwapFree:      4157020 kB
Dirty:            1324 kB
Writeback:           0 kB
Mapped:          30076 kB
Slab:            72924 kB
Committed_AS: 14467200 kB
PageTables:       1864 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 node7 on Wed May  2 21:51:48 UTC 2007