Trace number 2668092

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-12 1.05784 1.05764

General information on the benchmark

Namenormalized-PB07/OPT-SMALLINT-NLC/submittedPB07/
manquinho/mis/normalized-mis_50_10_1.opb
MD5SUM85943b997cdad21dc5e2becf1aafbf8b
Bench CategoryOPT-SMALLINT-NLC (optimisation, small integers, non linear constraints)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark-12
Best CPU time to get the best result obtained on this benchmark0.507922
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function -12
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 constraint10
Maximum length of a constraint18
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)610
Sum of products size (including duplicates)1220
Number of different products305
Sum of products size610

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
0.00/0.00	c constraints 355/0 clauses 305/0 units 0
0.00/0.00	c vars 50
0.00/0.00	c objective 50 + -50
0.09/0.12	c 0.111982 12.1094 0 310
0.09/0.12	o 0
0.09/0.12	c 0.113982 12.3906 0 579
0.09/0.12	o -1
0.09/0.13	c 0.117982 12.3906 1 843
0.09/0.13	o -2
0.19/0.27	c 0.250961 12.3906 1 1871
0.19/0.27	o -11
0.19/0.28	c 0.265959 12.3906 26 1975
0.19/0.28	o -12
1.00/1.02	c 0.967852 12.8945 1 7261
1.00/1.02	s OPTIMUM FOUND
1.00/1.02	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	-12

Watcher Data 

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2668092-1276659749/watcher-2668092-1276659749 -o /tmp/evaluation-result-2668092-1276659749/solver-2668092-1276659749 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2668092-1276659749.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: 0.99 1.00 1.00 3/106 16417
/proc/meminfo: memFree=1781324/2059040 swapFree=4170748/4192956
[pid=16417] ppid=16415 vsize=2600 CPUtime=0
/proc/16417/stat : 16417 (pbct) R 16415 16417 16219 0 -1 4202496 314 0 0 0 0 0 0 0 25 0 1 0 7269341 2662400 236 1992294400 134512640 136485738 4293193136 18446744073709551615 134803008 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/16417/statm: 650 243 178 482 0 166 0

[startup+0.048985 s]
/proc/loadavg: 0.99 1.00 1.00 3/106 16417
/proc/meminfo: memFree=1781324/2059040 swapFree=4170748/4192956
[pid=16417] ppid=16415 vsize=6040 CPUtime=0.04
/proc/16417/stat : 16417 (pbct) R 16415 16417 16219 0 -1 4202496 1210 0 0 0 4 0 0 0 25 0 1 0 7269341 6184960 1132 1992294400 134512640 136485738 4293193136 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/16417/statm: 1510 1133 198 482 0 1026 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 6040

[startup+0.100989 s]
/proc/loadavg: 0.99 1.00 1.00 3/106 16417
/proc/meminfo: memFree=1781324/2059040 swapFree=4170748/4192956
[pid=16417] ppid=16415 vsize=11308 CPUtime=0.09
/proc/16417/stat : 16417 (pbct) R 16415 16417 16219 0 -1 4202496 2486 0 0 0 9 0 0 0 25 0 1 0 7269341 11579392 2408 1992294400 134512640 136485738 4293193136 18446744073709551615 135844711 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/16417/statm: 2827 2408 210 482 0 2343 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 11308

[startup+0.301006 s]
/proc/loadavg: 0.99 1.00 1.00 3/106 16417
/proc/meminfo: memFree=1781324/2059040 swapFree=4170748/4192956
[pid=16417] ppid=16415 vsize=12684 CPUtime=0.29
/proc/16417/stat : 16417 (pbct) R 16415 16417 16219 0 -1 4202496 2836 0 0 0 27 2 0 0 25 0 1 0 7269341 12988416 2753 1992294400 134512640 136485738 4293193136 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/16417/statm: 3171 2753 244 482 0 2687 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 12684

[startup+0.70104 s]
/proc/loadavg: 0.99 1.00 1.00 3/106 16417
/proc/meminfo: memFree=1781324/2059040 swapFree=4170748/4192956
[pid=16417] ppid=16415 vsize=13072 CPUtime=0.69
/proc/16417/stat : 16417 (pbct) R 16415 16417 16219 0 -1 4202496 2911 0 0 0 66 3 0 0 25 0 1 0 7269341 13385728 2828 1992294400 134512640 136485738 4293193136 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/16417/statm: 3268 2828 244 482 0 2784 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 13072

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

[startup+0.901058 s]
/proc/loadavg: 0.99 1.00 1.00 3/106 16417
/proc/meminfo: memFree=1781324/2059040 swapFree=4170748/4192956
[pid=16417] ppid=16415 vsize=13200 CPUtime=0.89
/proc/16417/stat : 16417 (pbct) R 16415 16417 16219 0 -1 4202496 2941 0 0 0 85 4 0 0 25 0 1 0 7269341 13516800 2858 1992294400 134512640 136485738 4293193136 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/16417/statm: 3300 2858 244 482 0 2816 0
Current children cumulated CPU time (s) 0.89
Current children cumulated vsize (KiB) 13200

[startup+1.00107 s]
/proc/loadavg: 0.99 1.00 1.00 2/107 16418
/proc/meminfo: memFree=1770776/2059040 swapFree=4170748/4192956
[pid=16417] ppid=16415 vsize=13200 CPUtime=1
/proc/16417/stat : 16417 (pbct) R 16415 16417 16219 0 -1 4202496 2943 0 0 0 95 5 0 0 25 0 1 0 7269341 13516800 2860 1992294400 134512640 136485738 4293193136 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/16417/statm: 3300 2860 244 482 0 2816 0
Current children cumulated CPU time (s) 1
Current children cumulated vsize (KiB) 13200

Child status: 0
Real time (s): 1.05764
CPU time (s): 1.05784
CPU user time (s): 1.00385
CPU system time (s): 0.053991
CPU usage (%): 100.019
Max. virtual memory (cumulated for all children) (KiB): 13200

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.00385
system time used= 0.053991
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2949
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= 12

runsolver used 0.003999 second user time and 0.016997 second system time

The end

Launcher Data 

Begin job on node031 at 2010-06-16 05:42:29
IDJOB=2668092
IDBENCH=48175
IDSOLVER=1170
FILE ID=node031/2668092-1276659749
PBS_JOBID= 11172482
Free space on /tmp= 62584 MiB

SOLVER NAME= PB/CT 0.1
BENCH NAME= PB07/normalized-PB07/OPT-SMALLINT-NLC/submittedPB07/manquinho/mis/normalized-mis_50_10_1.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2668092-1276659749/watcher-2668092-1276659749 -o /tmp/evaluation-result-2668092-1276659749/solver-2668092-1276659749 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2668092-1276659749.opb

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

MD5SUM BENCH= 85943b997cdad21dc5e2becf1aafbf8b
RANDOM SEED=1371139971

node031.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		: 3000.219
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		: 3000.219
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	: 5599.53
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1781852 kB
Buffers:         41296 kB
Cached:         119344 kB
SwapCached:       1484 kB
Active:          93988 kB
Inactive:       105652 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1781852 kB
SwapTotal:     4192956 kB
SwapFree:      4170748 kB
Dirty:            2140 kB
Writeback:           0 kB
AnonPages:       37544 kB
Mapped:          15360 kB
Slab:            55600 kB
PageTables:       4100 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   180216 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= 62580 MiB
End job on node031 at 2010-06-16 05:42:30