Trace number 2682988

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 fixedOPT6 2.25066 2.25102

General information on the benchmark

Namenormalized-PB06/OPT-SMALLINT/submitted-PB06/
manquiho/logic_synthesis/normalized-dk512x.r.opb
MD5SUM581a8e804be9894a02ef91830c95d4b0
Bench CategoryOPT-SMALLINT (optimisation, small integers)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark6
Best CPU time to get the best result obtained on this benchmark0.047992
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 6
Optimality of the best value was proved YES
Number of variables59
Total number of constraints91
Number of constraints which are clauses91
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 constraint1
Maximum length of a constraint53
Number of terms in the objective function 59
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 59
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 59
Number of bits of the biggest sum of numbers6
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
0.00/0.00	c constraints 0/0 clauses 67/0 units 1
0.00/0.00	c vars 59
0.00/0.00	c objective 58 + 1
0.00/0.01	c 0.011998 3.65625 0 52
0.00/0.01	o 8
0.00/0.01	c 0.011998 3.65625 16 122
0.00/0.01	o 7
0.00/0.01	c 0.011998 3.65625 24 177
0.00/0.01	o 6
2.20/2.25	c 1.51277 3.65625 0 42043
2.20/2.25	s OPTIMUM FOUND
2.20/2.25	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 -x51 -x52 -x53 -x54 -x55 -x56 -x57 -x58 -x59

Verifier Data 

OK	6

Watcher Data 

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2682988-1277490808/watcher-2682988-1277490808 -o /tmp/evaluation-result-2682988-1277490808/solver-2682988-1277490808 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2682988-1277490808.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: 0.93 0.98 0.95 3/106 24456
/proc/meminfo: memFree=1827832/2059040 swapFree=4139068/4192956
[pid=24456] ppid=24454 vsize=2656 CPUtime=0
/proc/24456/stat : 24456 (pbct) R 24454 24456 24404 0 -1 4202496 300 0 0 0 0 0 0 0 20 0 1 0 124684228 2719744 219 1992294400 134512640 136421960 4293762032 18446744073709551615 134786032 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/24456/statm: 664 230 174 467 0 195 0

[startup+0.0874801 s]
/proc/loadavg: 0.93 0.98 0.95 3/106 24456
/proc/meminfo: memFree=1827832/2059040 swapFree=4139068/4192956
[pid=24456] ppid=24454 vsize=3740 CPUtime=0.08
/proc/24456/stat : 24456 (pbct) R 24454 24456 24404 0 -1 4202496 690 0 0 0 5 3 0 0 20 0 1 0 124684228 3829760 606 1992294400 134512640 136421960 4293762032 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/24456/statm: 935 606 236 467 0 466 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 3740

[startup+0.101482 s]
/proc/loadavg: 0.93 0.98 0.95 3/106 24456
/proc/meminfo: memFree=1827832/2059040 swapFree=4139068/4192956
[pid=24456] ppid=24454 vsize=3740 CPUtime=0.09
/proc/24456/stat : 24456 (pbct) R 24454 24456 24404 0 -1 4202496 690 0 0 0 6 3 0 0 20 0 1 0 124684228 3829760 606 1992294400 134512640 136421960 4293762032 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/24456/statm: 935 606 236 467 0 466 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3740

[startup+0.301519 s]
/proc/loadavg: 0.93 0.98 0.95 3/106 24456
/proc/meminfo: memFree=1827832/2059040 swapFree=4139068/4192956
[pid=24456] ppid=24454 vsize=3740 CPUtime=0.29
/proc/24456/stat : 24456 (pbct) R 24454 24456 24404 0 -1 4202496 692 0 0 0 19 10 0 0 20 0 1 0 124684228 3829760 608 1992294400 134512640 136421960 4293762032 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/24456/statm: 935 608 236 467 0 466 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3740

[startup+0.701593 s]
/proc/loadavg: 0.93 0.98 0.95 3/106 24456
/proc/meminfo: memFree=1827832/2059040 swapFree=4139068/4192956
[pid=24456] ppid=24454 vsize=3740 CPUtime=0.69
/proc/24456/stat : 24456 (pbct) R 24454 24456 24404 0 -1 4202496 694 0 0 0 46 23 0 0 21 0 1 0 124684228 3829760 610 1992294400 134512640 136421960 4293762032 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/24456/statm: 935 610 236 467 0 466 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 3740

[startup+1.50174 s]
/proc/loadavg: 0.93 0.98 0.95 2/107 24457
/proc/meminfo: memFree=1826212/2059040 swapFree=4139068/4192956
[pid=24456] ppid=24454 vsize=3740 CPUtime=1.49
/proc/24456/stat : 24456 (pbct) R 24454 24456 24404 0 -1 4202496 695 0 0 0 101 48 0 0 22 0 1 0 124684228 3829760 611 1992294400 134512640 136421960 4293762032 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/24456/statm: 935 611 236 467 0 466 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 3740

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

[startup+1.90181 s]
/proc/loadavg: 0.93 0.98 0.95 2/107 24457
/proc/meminfo: memFree=1826212/2059040 swapFree=4139068/4192956
[pid=24456] ppid=24454 vsize=3740 CPUtime=1.89
/proc/24456/stat : 24456 (pbct) R 24454 24456 24404 0 -1 4202496 695 0 0 0 127 62 0 0 25 0 1 0 124684228 3829760 611 1992294400 134512640 136421960 4293762032 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/24456/statm: 935 611 236 467 0 466 0
Current children cumulated CPU time (s) 1.89
Current children cumulated vsize (KiB) 3740

[startup+2.10185 s]
/proc/loadavg: 0.93 0.98 0.95 2/107 24457
/proc/meminfo: memFree=1825964/2059040 swapFree=4139068/4192956
[pid=24456] ppid=24454 vsize=3740 CPUtime=2.1
/proc/24456/stat : 24456 (pbct) R 24454 24456 24404 0 -1 4202496 696 0 0 0 142 68 0 0 25 0 1 0 124684228 3829760 612 1992294400 134512640 136421960 4293762032 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/24456/statm: 935 612 236 467 0 466 0
Current children cumulated CPU time (s) 2.1
Current children cumulated vsize (KiB) 3740

[startup+2.20887 s]
/proc/loadavg: 0.93 0.98 0.95 2/107 24457
/proc/meminfo: memFree=1825964/2059040 swapFree=4139068/4192956
[pid=24456] ppid=24454 vsize=3740 CPUtime=2.2
/proc/24456/stat : 24456 (pbct) R 24454 24456 24404 0 -1 4202496 696 0 0 0 148 72 0 0 25 0 1 0 124684228 3829760 612 1992294400 134512640 136421960 4293762032 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/24456/statm: 935 612 236 467 0 466 0
Current children cumulated CPU time (s) 2.2
Current children cumulated vsize (KiB) 3740

Child status: 0
Real time (s): 2.25102
CPU time (s): 2.25066
CPU user time (s): 1.51377
CPU system time (s): 0.736887
CPU usage (%): 99.9836
Max. virtual memory (cumulated for all children) (KiB): 3740

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.51377
system time used= 0.736887
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 701
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= 5

runsolver used 0.007998 second user time and 0.019996 second system time

The end

Launcher Data 

Begin job on node007 at 2010-06-25 20:33:28
IDJOB=2682988
IDBENCH=2856
IDSOLVER=1192
FILE ID=node007/2682988-1277490808
PBS_JOBID= 11190575
Free space on /tmp= 62328 MiB

SOLVER NAME= PB/CT 0.1 fixed
BENCH NAME= PB06/final/normalized-PB06/OPT-SMALLINT/submitted-PB06/manquiho/logic_synthesis/normalized-dk512x.r.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2682988-1277490808/watcher-2682988-1277490808 -o /tmp/evaluation-result-2682988-1277490808/solver-2682988-1277490808 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2682988-1277490808.opb

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

MD5SUM BENCH= 581a8e804be9894a02ef91830c95d4b0
RANDOM SEED=6840264

node007.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		: 3000.264
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	: 6000.52
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		: 3000.264
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	: 5599.44
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1828360 kB
Buffers:         20652 kB
Cached:         124820 kB
SwapCached:       6356 kB
Active:          69524 kB
Inactive:        88904 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1828360 kB
SwapTotal:     4192956 kB
SwapFree:      4139068 kB
Dirty:            2072 kB
Writeback:           0 kB
AnonPages:       11440 kB
Mapped:          11856 kB
Slab:            50256 kB
PageTables:       4200 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   182104 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= 62324 MiB
End job on node007 at 2010-06-25 20:33:30