Trace number 2667672

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 0.1OPT-76 5.64614 5.64859

General information on the benchmark

Name/OPT-SMALLINT-LIN/featureSubscription/
normalized-50-750-false-45-90-4-8000opt.opb
MD5SUMc18c3db09a696b172987b81aa567120d
Bench CategoryOPT-SMALLINT-LIN (optimisation, small integers, linear constraints)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark-76
Best CPU time to get the best result obtained on this benchmark5.51416
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 constraints29096
Number of constraints which are clauses29096
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 341
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 341
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 http://www.residual.se/pbct
0.00/0.00	c Based on OpenSMT/CT 20091015
0.39/0.44	c constraints 0/0 clauses 29096/0 units 0
0.39/0.44	c vars 2025
0.39/0.44	c objective 135 + -341
0.89/0.96	c 0.91786 56.7852 0 2622
0.89/0.96	o -14
0.89/0.97	c 0.92086 57.5273 3 4750
0.89/0.97	o -18
0.89/0.98	c 0.926859 57.5273 25 6612
0.89/0.98	o -24
0.89/0.99	c 0.935857 57.5273 90 8686
0.89/0.99	o -25
0.89/1.00	c 0.941856 57.5273 127 10499
0.89/1.00	o -30
1.00/1.01	c 0.948855 57.5273 159 12313
1.00/1.01	o -33
1.00/1.02	c 0.954854 57.5273 188 13996
1.00/1.02	o -37
1.00/1.04	c 0.976851 57.5273 363 16118
1.00/1.04	o -54
1.00/1.07	c 0.998848 57.5273 600 18053
1.00/1.07	o -57
1.00/1.08	c 1.00685 57.5273 624 19501
1.00/1.08	o -58
1.00/1.10	c 1.02484 57.5273 765 21336
1.00/1.10	o -66
1.10/1.15	c 1.07284 57.5273 1217 23316
1.10/1.15	o -67
1.10/1.18	c 1.09883 57.5273 1442 25113
1.10/1.18	o -75
1.19/1.29	c 1.20782 57.6562 2373 27607
1.19/1.29	o -76
5.29/5.40	c 5.19721 60.0508 1405 51645
5.29/5.40	s OPTIMUM FOUND
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Verifier Data

OK	-76

Watcher Data

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2667672-1276685749/watcher-2667672-1276685749 -o /tmp/evaluation-result-2667672-1276685749/solver-2667672-1276685749 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2667672-1276685749.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 2/106 16435
/proc/meminfo: memFree=1767960/2059040 swapFree=4164944/4192956
[pid=16435] ppid=16433 vsize=2208 CPUtime=0
/proc/16435/stat : 16435 (pbct) R 16433 16435 16317 0 -1 4202496 258 0 0 0 0 0 0 0 18 0 1 0 9870271 2260992 180 1992294400 134512640 136485738 4291571200 18446744073709551615 135850441 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/16435/statm: 552 180 156 482 0 68 0

[startup+0.0890589 s]
/proc/loadavg: 1.00 1.00 1.00 2/106 16435
/proc/meminfo: memFree=1767960/2059040 swapFree=4164944/4192956
[pid=16435] ppid=16433 vsize=2340 CPUtime=0.08
/proc/16435/stat : 16435 (pbct) R 16433 16435 16317 0 -1 4202496 305 0 0 0 8 0 0 0 18 0 1 0 9870271 2396160 227 1992294400 134512640 136485738 4291571200 18446744073709551615 134519141 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/16435/statm: 585 227 156 482 0 101 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 2340

[startup+0.101059 s]
/proc/loadavg: 1.00 1.00 1.00 2/106 16435
/proc/meminfo: memFree=1767960/2059040 swapFree=4164944/4192956
[pid=16435] ppid=16433 vsize=2472 CPUtime=0.09
/proc/16435/stat : 16435 (pbct) R 16433 16435 16317 0 -1 4202496 312 0 0 0 9 0 0 0 18 0 1 0 9870271 2531328 234 1992294400 134512640 136485738 4291571200 18446744073709551615 134533283 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/16435/statm: 618 234 156 482 0 134 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2472

[startup+0.301073 s]
/proc/loadavg: 1.00 1.00 1.00 2/106 16435
/proc/meminfo: memFree=1767960/2059040 swapFree=4164944/4192956
[pid=16435] ppid=16433 vsize=2868 CPUtime=0.29
/proc/16435/stat : 16435 (pbct) R 16433 16435 16317 0 -1 4202496 429 0 0 0 29 0 0 0 18 0 1 0 9870271 2936832 351 1992294400 134512640 136485738 4291571200 18446744073709551615 135856843 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/16435/statm: 717 351 156 482 0 233 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2868

[startup+0.701096 s]
/proc/loadavg: 1.00 1.00 1.00 2/106 16435
/proc/meminfo: memFree=1767960/2059040 swapFree=4164944/4192956
[pid=16435] ppid=16433 vsize=24336 CPUtime=0.69
/proc/16435/stat : 16435 (pbct) R 16433 16435 16317 0 -1 4202496 6101 0 0 0 67 2 0 0 18 0 1 0 9870271 24920064 5553 1992294400 134512640 136485738 4291571200 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/16435/statm: 6084 5553 194 482 0 5600 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 24336

[startup+1.50115 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 16436
/proc/meminfo: memFree=1712648/2059040 swapFree=4164944/4192956
[pid=16435] ppid=16433 vsize=59432 CPUtime=1.49
/proc/16435/stat : 16435 (pbct) R 16433 16435 16317 0 -1 4202496 15223 0 0 0 140 9 0 0 20 0 1 0 9870271 60858368 14157 1992294400 134512640 136485738 4291571200 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/16435/statm: 14858 14157 243 482 0 14374 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 59432

[startup+3.10124 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 16436
/proc/meminfo: memFree=1711036/2059040 swapFree=4164944/4192956
[pid=16435] ppid=16433 vsize=61320 CPUtime=3.09
/proc/16435/stat : 16435 (pbct) R 16433 16435 16317 0 -1 4202496 15706 0 0 0 295 14 0 0 24 0 1 0 9870271 62791680 14640 1992294400 134512640 136485738 4291571200 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/16435/statm: 15330 14640 243 482 0 14846 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 61320

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

[startup+4.70034 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 16436
/proc/meminfo: memFree=1709672/2059040 swapFree=4164944/4192956
[pid=16435] ppid=16433 vsize=61488 CPUtime=4.69
/proc/16435/stat : 16435 (pbct) R 16433 16435 16317 0 -1 4202496 15731 0 0 0 451 18 0 0 25 0 1 0 9870271 62963712 14665 1992294400 134512640 136485738 4291571200 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/16435/statm: 15372 14665 243 482 0 14888 0
Current children cumulated CPU time (s) 4.69
Current children cumulated vsize (KiB) 61488

[startup+5.10037 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 16436
/proc/meminfo: memFree=1709672/2059040 swapFree=4164944/4192956
[pid=16435] ppid=16433 vsize=61488 CPUtime=5.09
/proc/16435/stat : 16435 (pbct) R 16433 16435 16317 0 -1 4202496 15731 0 0 0 490 19 0 0 25 0 1 0 9870271 62963712 14665 1992294400 134512640 136485738 4291571200 18446744073709551615 135042633 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/16435/statm: 15372 14665 243 482 0 14888 0
Current children cumulated CPU time (s) 5.09
Current children cumulated vsize (KiB) 61488

[startup+5.50839 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 16436
/proc/meminfo: memFree=1709672/2059040 swapFree=4164944/4192956
[pid=16435] ppid=16433 vsize=55228 CPUtime=5.5
/proc/16435/stat : 16435 (pbct) R 16433 16435 16317 0 -1 4202496 15736 0 0 0 530 20 0 0 25 0 1 0 9870271 56553472 13214 1992294400 134512640 136485738 4291571200 18446744073709551615 134720107 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/16435/statm: 13807 13214 247 482 0 13323 0
Current children cumulated CPU time (s) 5.5
Current children cumulated vsize (KiB) 55228

[startup+5.6004 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 16436
/proc/meminfo: memFree=1709672/2059040 swapFree=4164944/4192956
[pid=16435] ppid=16433 vsize=55228 CPUtime=5.59
/proc/16435/stat : 16435 (pbct) R 16433 16435 16317 0 -1 4202496 15736 0 0 0 539 20 0 0 25 0 1 0 9870271 56553472 13214 1992294400 134512640 136485738 4291571200 18446744073709551615 134720130 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/16435/statm: 13807 13214 247 482 0 13323 0
Current children cumulated CPU time (s) 5.59
Current children cumulated vsize (KiB) 55228

Child status: 0
Real time (s): 5.64859
CPU time (s): 5.64614
CPU user time (s): 5.43517
CPU system time (s): 0.210967
CPU usage (%): 99.9566
Max. virtual memory (cumulated for all children) (KiB): 61488

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 5.43517
system time used= 0.210967
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 15737
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= 38

runsolver used 0.014997 second user time and 0.035994 second system time

The end

Launcher Data

Begin job on node029 at 2010-06-16 12:55:49
IDJOB=2667672
IDBENCH=71826
IDSOLVER=1170
FILE ID=node029/2667672-1276685749
PBS_JOBID= 11172587
Free space on /tmp= 62572 MiB

SOLVER NAME= PB/CT 0.1
BENCH NAME= PB09/normalized-PB09/OPT-SMALLINT-LIN/featureSubscription/normalized-50-750-false-45-90-4-8000opt.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2667672-1276685749/watcher-2667672-1276685749 -o /tmp/evaluation-result-2667672-1276685749/solver-2667672-1276685749 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2667672-1276685749.opb

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

MD5SUM BENCH= c18c3db09a696b172987b81aa567120d
RANDOM SEED=1196178428

node029.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		: 3000.221
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	: 6000.44
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		: 3000.221
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	: 5599.46
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1768488 kB
Buffers:         79020 kB
Cached:         111136 kB
SwapCached:       1508 kB
Active:         100520 kB
Inactive:       123708 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1768488 kB
SwapTotal:     4192956 kB
SwapFree:      4164944 kB
Dirty:            2908 kB
Writeback:           0 kB
AnonPages:       32628 kB
Mapped:          15100 kB
Slab:            44616 kB
PageTables:       4056 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   183456 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    264948 kB
VmallocChunk: 34359471699 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 62572 MiB
End job on node029 at 2010-06-16 12:55:54