Trace number 2681630

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 fixedOPT3 6.46002 6.46186

General information on the benchmark

Namenormalized-PB07/OPT-SMALLINT-NLC/submittedPB07/
manquinho/mds/normalized-mds_50_25_1.opb
MD5SUM3c8b2b83a32c4c8e761f030b6789f3c6
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 benchmark1.09483
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 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)1498
Sum of products size (including duplicates)2996
Number of different products1498
Sum of products size2996

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
0.01/0.02	c constraints 1498/0 clauses 1548/0 units 0
0.01/0.02	c vars 50
0.01/0.02	c objective 50 + 0
0.29/0.38	c 0.351946 34.8359 1 1546
0.29/0.38	o 4
0.39/0.43	c 0.400939 35.4258 26 1605
0.39/0.43	o 3
6.29/6.31	c 6.16206 36.1992 27 5845
6.29/6.31	s OPTIMUM FOUND
6.29/6.31	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 -x30 -x31 -x32 x33 -x34 -x35 -x36 -x37 -x38 -x39 -x40 -x41 -x42 -x43 -x44 -x45 x46 -x47 -x48 -x49 -x50

Verifier Data 

OK	3

Watcher Data 

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2681630-1277500972/watcher-2681630-1277500972 -o /tmp/evaluation-result-2681630-1277500972/solver-2681630-1277500972 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2681630-1277500972.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: 1.06 1.06 1.01 3/105 32621
/proc/meminfo: memFree=1856584/2059040 swapFree=4139112/4192956
[pid=32621] ppid=32619 vsize=2268 CPUtime=0
/proc/32621/stat : 32621 (pbct) R 32619 32621 32047 0 -1 4202496 276 0 0 0 0 0 0 0 25 0 1 0 91390685 2322432 195 1992294400 134512640 136421960 4293703696 18446744073709551615 135811817 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/32621/statm: 567 196 146 467 0 98 0

[startup+0.0152889 s]
/proc/loadavg: 1.06 1.06 1.01 3/105 32621
/proc/meminfo: memFree=1856584/2059040 swapFree=4139112/4192956
[pid=32621] ppid=32619 vsize=2400 CPUtime=0.01
/proc/32621/stat : 32621 (pbct) R 32619 32621 32047 0 -1 4202496 332 0 0 0 1 0 0 0 25 0 1 0 91390685 2457600 251 1992294400 134512640 136421960 4293703696 18446744073709551615 135811817 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/32621/statm: 600 251 146 467 0 131 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 2400

[startup+0.101298 s]
/proc/loadavg: 1.06 1.06 1.01 3/105 32621
/proc/meminfo: memFree=1856584/2059040 swapFree=4139112/4192956
[pid=32621] ppid=32619 vsize=11888 CPUtime=0.1
/proc/32621/stat : 32621 (pbct) R 32619 32621 32047 0 -1 4202496 2637 0 0 0 9 1 0 0 25 0 1 0 91390685 12173312 2556 1992294400 134512640 136421960 4293703696 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/32621/statm: 2972 2557 193 467 0 2503 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 11888

[startup+0.300318 s]
/proc/loadavg: 1.06 1.06 1.01 3/105 32621
/proc/meminfo: memFree=1856584/2059040 swapFree=4139112/4192956
[pid=32621] ppid=32619 vsize=31792 CPUtime=0.29
/proc/32621/stat : 32621 (pbct) R 32619 32621 32047 0 -1 4202496 7818 0 0 0 27 2 0 0 25 0 1 0 91390685 32555008 7433 1992294400 134512640 136421960 4293703696 18446744073709551615 134621864 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/32621/statm: 7948 7433 203 467 0 7479 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 31792

[startup+0.70036 s]
/proc/loadavg: 1.06 1.06 1.01 3/105 32621
/proc/meminfo: memFree=1856584/2059040 swapFree=4139112/4192956
[pid=32621] ppid=32619 vsize=36272 CPUtime=0.69
/proc/32621/stat : 32621 (pbct) R 32619 32621 32047 0 -1 4202496 8931 0 0 0 66 3 0 0 25 0 1 0 91390685 37142528 8488 1992294400 134512640 136421960 4293703696 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/32621/statm: 9068 8488 237 467 0 8599 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 36272

[startup+1.50044 s]
/proc/loadavg: 1.06 1.06 1.01 2/106 32622
/proc/meminfo: memFree=1823468/2059040 swapFree=4139112/4192956
[pid=32621] ppid=32619 vsize=36272 CPUtime=1.49
/proc/32621/stat : 32621 (pbct) R 32619 32621 32047 0 -1 4202496 8954 0 0 0 145 4 0 0 25 0 1 0 91390685 37142528 8511 1992294400 134512640 136421960 4293703696 18446744073709551615 135025621 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/32621/statm: 9068 8511 237 467 0 8599 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 36272

[startup+3.10061 s]
/proc/loadavg: 1.06 1.06 1.01 2/106 32622
/proc/meminfo: memFree=1823096/2059040 swapFree=4139112/4192956
[pid=32621] ppid=32619 vsize=36668 CPUtime=3.09
/proc/32621/stat : 32621 (pbct) R 32619 32621 32047 0 -1 4202496 9030 0 0 0 301 8 0 0 25 0 1 0 91390685 37548032 8587 1992294400 134512640 136421960 4293703696 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/32621/statm: 9167 8587 237 467 0 8698 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 36668

[startup+6.30195 s]
/proc/loadavg: 1.05 1.06 1.01 2/106 32622
/proc/meminfo: memFree=1822476/2059040 swapFree=4139112/4192956
[pid=32621] ppid=32619 vsize=37064 CPUtime=6.29
/proc/32621/stat : 32621 (pbct) R 32619 32621 32047 0 -1 4202496 9135 0 0 0 614 15 0 0 25 0 1 0 91390685 37953536 8692 1992294400 134512640 136421960 4293703696 18446744073709551615 135028864 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/32621/statm: 9266 8692 237 467 0 8797 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 37064

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

[startup+6.40196 s]
/proc/loadavg: 1.05 1.06 1.01 2/106 32622
/proc/meminfo: memFree=1822476/2059040 swapFree=4139112/4192956
[pid=32621] ppid=32619 vsize=32280 CPUtime=6.39
/proc/32621/stat : 32621 (pbct) R 32619 32621 32047 0 -1 4202496 9139 0 0 0 624 15 0 0 25 0 1 0 91390685 33054720 7783 1992294400 134512640 136421960 4293703696 18446744073709551615 135801307 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/32621/statm: 8070 7783 240 467 0 7601 0
Current children cumulated CPU time (s) 6.39
Current children cumulated vsize (KiB) 32280

Child status: 0
Real time (s): 6.46186
CPU time (s): 6.46002
CPU user time (s): 6.30004
CPU system time (s): 0.159975
CPU usage (%): 99.9715
Max. virtual memory (cumulated for all children) (KiB): 37064

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 6.30004
system time used= 0.159975
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 9140
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= 1
involuntary context switches= 14

runsolver used 0.017997 second user time and 0.038994 second system time

The end

Launcher Data 

Begin job on node082 at 2010-06-25 23:22:52
IDJOB=2681630
IDBENCH=48119
IDSOLVER=1192
FILE ID=node082/2681630-1277500972
PBS_JOBID= 11190547
Free space on /tmp= 62360 MiB

SOLVER NAME= PB/CT 0.1 fixed
BENCH NAME= PB07/normalized-PB07/OPT-SMALLINT-NLC/submittedPB07/manquinho/mds/normalized-mds_50_25_1.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2681630-1277500972/watcher-2681630-1277500972 -o /tmp/evaluation-result-2681630-1277500972/solver-2681630-1277500972 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2681630-1277500972.opb

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

MD5SUM BENCH= 3c8b2b83a32c4c8e761f030b6789f3c6
RANDOM SEED=1971900744

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:       1857112 kB
Buffers:         26652 kB
Cached:          76028 kB
SwapCached:       6436 kB
Active:          68812 kB
Inactive:        47220 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1857112 kB
SwapTotal:     4192956 kB
SwapFree:      4139112 kB
Dirty:            1872 kB
Writeback:           0 kB
AnonPages:       12076 kB
Mapped:          11840 kB
Slab:            63980 kB
PageTables:       4128 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   183324 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 2010-06-25 23:22:58