Trace number 2681275

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. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock 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/CT 0.1 fixedOPT-78 7.2459 7.24947

General information on the benchmark

Name/OPT-SMALLINT-LIN/featureSubscription/
normalized-50-750-false-45-90-4-1000opt.opb
MD5SUM6db624ef9d444e54f2daac91a1bb8591
Bench CategoryOPT-SMALLINT-LIN (optimisation, small integers, linear constraints)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark-78
Best CPU time to get the best result obtained on this benchmark7.2459
Has Objective FunctionYES
Satisfiable
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of variables2025
Total number of constraints30658
Number of constraints which are clauses30658
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint2
Maximum length of a constraint3
Number of terms in the objective function 135
Biggest coefficient in the objective function 4
Number of bits for the biggest coefficient in the objective function 3
Sum of the numbers in the objective function 327
Number of bits of the sum of numbers in the objective function 9
Biggest number in a constraint 4
Number of bits of the biggest number in a constraint 3
Biggest sum of numbers in a constraint 327
Number of bits of the biggest sum of numbers9
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 

0.00/0.00	c PB/CT 0.1.1 http://www.residual.se/pbct
0.00/0.00	c Based on OpenSMT/CT 20091015
0.29/0.33	c constraints 0/0 clauses 30658/0 units 0
0.29/0.33	c vars 2025
0.29/0.33	c objective 135 + -327
0.79/0.83	c 0.770882 61.2461 0 1831
0.79/0.83	o -14
0.79/0.83	c 0.775882 62.2969 1 3931
0.79/0.83	o -20
0.79/0.84	c 0.780881 62.2969 22 5763
0.79/0.84	o -27
0.79/0.85	c 0.78688 62.2969 52 7669
0.79/0.85	o -29
0.79/0.86	c 0.793879 62.2969 65 9324
0.79/0.86	o -30
0.79/0.87	c 0.799878 62.2969 98 11092
0.79/0.87	o -37
0.79/0.88	c 0.810876 62.2969 188 12918
0.79/0.88	o -38
0.79/0.89	c 0.818875 62.2969 251 14720
0.79/0.89	o -39
0.89/0.90	c 0.825874 62.2969 279 16343
0.89/0.90	o -40
0.89/0.91	c 0.832873 62.2969 311 18085
0.89/0.91	o -41
0.89/0.92	c 0.839872 62.2969 329 19758
0.89/0.92	o -45
0.89/0.94	c 0.85287 62.2969 480 21654
0.89/0.94	o -46
0.89/0.95	c 0.865868 62.2969 585 23087
0.89/0.95	o -71
0.89/0.96	c 0.871867 62.2969 618 24494
0.89/0.96	o -72
1.10/1.15	c 1.04884 62.2969 2450 28249
1.10/1.15	o -73
1.19/1.24	c 1.12983 62.4258 3163 30384
1.19/1.24	o -74
1.79/1.86	c 1.73374 63.4609 7605 36484
1.79/1.86	o -75
3.59/3.60	c 3.41148 64.3633 12038 48405
3.59/3.60	o -76
4.99/5.00	c 4.75728 64.3633 8326 58582
4.99/5.00	o -78
6.89/6.99	c 6.68998 64.5 1121 71111
6.89/6.99	s OPTIMUM FOUND
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Verifier Data 

OK	-78

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2681275-1277506392/watcher-2681275-1277506392 -o /tmp/evaluation-result-2681275-1277506392/solver-2681275-1277506392 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2681275-1277506392.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): 2000 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
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.00 1.00 1.00 3/105 453
/proc/meminfo: memFree=1851192/2059040 swapFree=4139112/4192956
[pid=453] ppid=451 vsize=2136 CPUtime=0
/proc/453/stat : 453 (pbct) R 451 453 341 0 -1 4202496 245 0 0 0 0 0 0 0 25 0 1 0 91932685 2187264 164 1992294400 134512640 136421960 4287847584 18446744073709551615 135528931 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/453/statm: 534 164 145 467 0 65 0

[startup+0.02019 s]
/proc/loadavg: 1.00 1.00 1.00 3/105 453
/proc/meminfo: memFree=1851192/2059040 swapFree=4139112/4192956
[pid=453] ppid=451 vsize=2136 CPUtime=0.01
/proc/453/stat : 453 (pbct) R 451 453 341 0 -1 4202496 261 0 0 0 1 0 0 0 25 0 1 0 91932685 2187264 180 1992294400 134512640 136421960 4287847584 18446744073709551615 135806150 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/453/statm: 534 180 145 467 0 65 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 2136

[startup+0.101199 s]
/proc/loadavg: 1.00 1.00 1.00 3/105 453
/proc/meminfo: memFree=1851192/2059040 swapFree=4139112/4192956
[pid=453] ppid=451 vsize=2400 CPUtime=0.09
/proc/453/stat : 453 (pbct) R 451 453 341 0 -1 4202496 328 0 0 0 9 0 0 0 25 0 1 0 91932685 2457600 247 1992294400 134512640 136421960 4287847584 18446744073709551615 134518219 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/453/statm: 600 247 145 467 0 131 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2400

[startup+0.30122 s]
/proc/loadavg: 1.00 1.00 1.00 3/105 453
/proc/meminfo: memFree=1851192/2059040 swapFree=4139112/4192956
[pid=453] ppid=451 vsize=3060 CPUtime=0.29
/proc/453/stat : 453 (pbct) R 451 453 341 0 -1 4202496 492 0 0 0 29 0 0 0 25 0 1 0 91932685 3133440 411 1992294400 134512640 136421960 4287847584 18446744073709551615 134554704 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/453/statm: 765 411 145 467 0 296 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3060

[startup+0.701266 s]
/proc/loadavg: 1.00 1.00 1.00 3/105 453
/proc/meminfo: memFree=1851192/2059040 swapFree=4139112/4192956
[pid=453] ppid=451 vsize=60348 CPUtime=0.69
/proc/453/stat : 453 (pbct) R 451 453 341 0 -1 4202496 15497 0 0 0 64 5 0 0 25 0 1 0 91932685 61796352 13938 1992294400 134512640 136421960 4287847584 18446744073709551615 135830543 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/453/statm: 15087 13938 204 467 0 14618 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 60348

[startup+1.50135 s]
/proc/loadavg: 1.00 1.00 1.00 2/106 454
/proc/meminfo: memFree=1793152/2059040 swapFree=4139112/4192956
[pid=453] ppid=451 vsize=64320 CPUtime=1.49
/proc/453/stat : 453 (pbct) R 451 453 341 0 -1 4202496 16505 0 0 0 138 11 0 0 25 0 1 0 91932685 65863680 14830 1992294400 134512640 136421960 4287847584 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/453/statm: 16080 14830 236 467 0 15611 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 64320

[startup+3.10152 s]
/proc/loadavg: 1.00 1.00 1.00 2/106 454
/proc/meminfo: memFree=1791416/2059040 swapFree=4139112/4192956
[pid=453] ppid=451 vsize=65640 CPUtime=3.09
/proc/453/stat : 453 (pbct) R 451 453 341 0 -1 4202496 16827 0 0 0 292 17 0 0 25 0 1 0 91932685 67215360 15151 1992294400 134512640 136421960 4287847584 18446744073709551615 135022241 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/453/statm: 16410 15151 236 467 0 15941 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 65640

[startup+6.30085 s]
/proc/loadavg: 1.00 1.00 1.00 2/106 454
/proc/meminfo: memFree=1790672/2059040 swapFree=4139112/4192956
[pid=453] ppid=451 vsize=65904 CPUtime=6.29
/proc/453/stat : 453 (pbct) R 451 453 341 0 -1 4202496 16899 0 0 0 601 28 0 0 25 0 1 0 91932685 67485696 15221 1992294400 134512640 136421960 4287847584 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/453/statm: 16476 15221 236 467 0 16007 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 65904

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

[startup+6.7009 s]
/proc/loadavg: 1.00 1.00 1.00 2/106 454
/proc/meminfo: memFree=1790672/2059040 swapFree=4139112/4192956
[pid=453] ppid=451 vsize=66044 CPUtime=6.69
/proc/453/stat : 453 (pbct) R 451 453 341 0 -1 4202496 16912 0 0 0 640 29 0 0 25 0 1 0 91932685 67629056 15234 1992294400 134512640 136421960 4287847584 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/453/statm: 16511 15234 236 467 0 16042 0
Current children cumulated CPU time (s) 6.69
Current children cumulated vsize (KiB) 66044

[startup+7.10094 s]
/proc/loadavg: 1.00 1.00 1.00 2/106 454
/proc/meminfo: memFree=1790672/2059040 swapFree=4139112/4192956
[pid=453] ppid=451 vsize=60336 CPUtime=7.09
/proc/453/stat : 453 (pbct) R 451 453 341 0 -1 4202496 16916 0 0 0 679 30 0 0 18 0 1 0 91932685 61784064 14329 1992294400 134512640 136421960 4287847584 18446744073709551615 134701435 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/453/statm: 15084 14329 239 467 0 14615 0
Current children cumulated CPU time (s) 7.09
Current children cumulated vsize (KiB) 60336

[startup+7.20095 s]
/proc/loadavg: 1.00 1.00 1.00 2/106 454
/proc/meminfo: memFree=1790672/2059040 swapFree=4139112/4192956
[pid=453] ppid=451 vsize=60336 CPUtime=7.19
/proc/453/stat : 453 (pbct) R 451 453 341 0 -1 4202496 16916 0 0 0 689 30 0 0 18 0 1 0 91932685 61784064 14329 1992294400 134512640 136421960 4287847584 18446744073709551615 135801316 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/453/statm: 15084 14329 239 467 0 14615 0
Current children cumulated CPU time (s) 7.19
Current children cumulated vsize (KiB) 60336

Child status: 0
Real time (s): 7.24947
CPU time (s): 7.2459
CPU user time (s): 6.93095
CPU system time (s): 0.314952
CPU usage (%): 99.9508
Max. virtual memory (cumulated for all children) (KiB): 66044

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 6.93095
system time used= 0.314952
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 16917
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= 2
involuntary context switches= 18

runsolver used 0.010998 second user time and 0.042993 second system time

The end

Launcher Data 

Begin job on node082 at 2010-06-26 00:53:12
IDJOB=2681275
IDBENCH=71835
IDSOLVER=1192
FILE ID=node082/2681275-1277506392
PBS_JOBID= 11190595
Free space on /tmp= 62356 MiB

SOLVER NAME= PB/CT 0.1 fixed
BENCH NAME= PB09/normalized-PB09/OPT-SMALLINT-LIN/featureSubscription/normalized-50-750-false-45-90-4-1000opt.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2681275-1277506392/watcher-2681275-1277506392 -o /tmp/evaluation-result-2681275-1277506392/solver-2681275-1277506392 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2681275-1277506392.opb

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 6db624ef9d444e54f2daac91a1bb8591
RANDOM SEED=729543681

node082.alineos.net Linux 2.6.18-164.el5 #1 SMP Thu Sep 3 03:28:30 EDT 2009

/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		: 3000.215
cache size	: 2048 KB
physical id	: 0
siblings	: 1
core id		: 0
cpu cores	: 1
apicid		: 0
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 constant_tsc pni monitor ds_cpl cid cx16 xtpr
bogomips	: 6000.43
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		: 3000.215
cache size	: 2048 KB
physical id	: 3
siblings	: 1
core id		: 0
cpu cores	: 1
apicid		: 6
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 constant_tsc pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5999.41
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1851720 kB
Buffers:         30804 kB
Cached:          77440 kB
SwapCached:       6436 kB
Active:          69924 kB
Inactive:        51576 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1851720 kB
SwapTotal:     4192956 kB
SwapFree:      4139112 kB
Dirty:            2880 kB
Writeback:           0 kB
AnonPages:       12012 kB
Mapped:          11896 kB
Slab:            63988 kB
PageTables:       4180 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   182472 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    264964 kB
VmallocChunk: 34359471699 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 62356 MiB
End job on node082 at 2010-06-26 00:53:19