Trace number 3747783

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
npSolver inc-topDown (fixed)OPT3 0.106983 0.111002

General information on the benchmark

Namenormalized-PB07/OPT-SMALLINT-NLC/submittedPB07/roussel/
factor-mod-B/factor-mod-size=7-P0=37-P1=43-B.opb
MD5SUM2fc96c84e9a32377eb9e70bf4047222f
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 benchmark0.000999
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 variables21
Total number of constraints3
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 constraints3
Minimum length of a constraint7
Maximum length of a constraint56
Number of terms in the objective function 7
Biggest coefficient in the objective function 64
Number of bits for the biggest coefficient in the objective function 7
Sum of the numbers in the objective function 127
Number of bits of the sum of numbers in the objective function 7
Biggest number in a constraint 8192
Number of bits of the biggest number in a constraint 14
Biggest sum of numbers in a constraint 32440
Number of bits of the biggest sum of numbers15
Number of products (including duplicates)49
Sum of products size (including duplicates)98
Number of different products49
Sum of products size98

Quality of the solution as a function of time


Download the above graph as a PDF file / as an EPS file

Solver Data 

0.00/0.01	c run inc solver
0.00/0.01	c [INC SYSTEM] run initial solver
0.00/0.01	c [INC SYSTEM] preprocess with white file
0.00/0.03	c [INC SYSTEM] finished preprocessing in 0 s
0.00/0.03	c [INC SYSTEM] execute solver
0.00/0.07	c [INC SEARCH] formula is SAT
0.00/0.07	c [INC SYSTEM] solved the initial formula
0.00/0.07	c model valid
0.00/0.07	c current solution ok
0.00/0.08	o 63
0.00/0.08	c [INC SYSTEM] there exists a inc, kill it!
0.00/0.08	c write failed with 2
0.00/0.08	c [INC SEARCH] iteration: 0
0.00/0.08	c [INC BOUNDS] best value:63 search for 62
0.00/0.08	c [INC SYSTEM] create new solver instance
0.00/0.08	c [INC] encode full formula
0.00/0.08	c set iterative enc to: swc
0.00/0.08	c [INC SEARCH] isOptimum variable: 0
0.00/0.10	c formula is SAT
0.00/0.10	c [INC SEARCH] copied best model
0.00/0.10	c [INC SEARCH] sat variable: 1 optimum/unsat variable: 0
0.00/0.10	c model valid
0.00/0.10	c current solution ok
0.00/0.10	o 37
0.00/0.10	c [INC SEARCH] iteration: 1
0.00/0.10	c [INC BOUNDS] best value:37 search for 36
0.00/0.10	c [INC ENCODE] setup new number of clauses ...
0.00/0.10	c [INC] encode incremental formula
0.00/0.10	c return only the limitting unit clause for 36
0.00/0.10	c [INC SYSTEM] transmit new clauses to solver: 1
0.00/0.10	c [INC SEARCH] isOptimum variable: 0
0.00/0.10	c formula is SAT
0.00/0.10	c [INC SEARCH] copied best model
0.00/0.10	c [INC SEARCH] sat variable: 1 optimum/unsat variable: 0
0.00/0.10	c model valid
0.00/0.10	c current solution ok
0.00/0.10	o 23
0.00/0.10	c [INC SEARCH] iteration: 2
0.00/0.10	c [INC BOUNDS] best value:23 search for 22
0.00/0.10	c [INC ENCODE] setup new number of clauses ...
0.00/0.10	c [INC] encode incremental formula
0.00/0.10	c return only the limitting unit clause for 22
0.00/0.10	c [INC SYSTEM] transmit new clauses to solver: 1
0.00/0.10	c [INC SEARCH] isOptimum variable: 0
0.00/0.11	c formula is SAT
0.00/0.11	c [INC SEARCH] copied best model
0.00/0.11	c [INC SEARCH] sat variable: 1 optimum/unsat variable: 0
0.00/0.11	c model valid
0.00/0.11	c current solution ok
0.00/0.11	o 3
0.00/0.11	c [INC SEARCH] iteration: 3
0.00/0.11	c [INC BOUNDS] best value:3 search for 2
0.00/0.11	c [INC ENCODE] setup new number of clauses ...
0.00/0.11	c [INC] encode incremental formula
0.00/0.11	c return only the limitting unit clause for 2
0.00/0.11	c [INC SYSTEM] transmit new clauses to solver: 1
0.00/0.11	c [INC SEARCH] isOptimum variable: 0
0.00/0.11	c [INC SEARCH] formula is UNSAT
0.00/0.11	c [INC SYSTEM] there exists a inc, kill it!
0.00/0.11	c write failed with 2
0.00/0.11	c [INC SYSTEM] there exists an encoder, kill it! (ptr=0xe30170)
0.00/0.11	c [INC SEARCH] sat variable: 0 optimum/unsat variable: 1
0.00/0.11	c [INC SEARCH] found optimum
0.00/0.11	c display solution
0.00/0.11	s OPTIMUM FOUND
0.00/0.11	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 -x60 -x61 -x62 -x63 -x64 -x65 -x66 -x67 -x68 -x69 -x70

Verifier Data 

OK	3

Watcher Data 

runsolver Copyright (C) 2010-2011 Olivier ROUSSEL

This is runsolver version 3.3.1 (svn: 989)

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-3747783-1339102574/watcher-3747783-1339102574 -o /tmp/evaluation-result-3747783-1339102574/solver-3747783-1339102574 -C 1800 -W 1900 -M 15500 HOME/npSolver-pbo-Itd.sh HOME/instance-3747783-1339102574.opb 2070020909 HOME HOME 

running on 4 cores: 0,2,4,6

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): 1900 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 15872000 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 15923200 KiB
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 2.02 2.01 1.94 3/179 4961
/proc/meminfo: memFree=29450504/32873648 swapFree=7628/7628
[pid=4961] ppid=4959 vsize=9148 CPUtime=0 cores=0,2,4,6
/proc/4961/stat : 4961 (npSolver-pbo-It) S 4959 4961 4113 0 -1 4202496 359 0 0 0 0 0 0 0 20 0 1 0 376383413 9367552 275 33554432000 4194304 5064252 140735192030544 140735192029456 217410332238 0 65536 4100 65538 18446744071579302229 0 0 17 4 0 0 0 0 0
/proc/4961/statm: 2287 275 233 213 0 72 0

[startup+0.075345 s]
/proc/loadavg: 2.02 2.01 1.94 3/179 4961
/proc/meminfo: memFree=29450504/32873648 swapFree=7628/7628
[pid=4961] ppid=4959 vsize=9148 CPUtime=0 cores=0,2,4,6
/proc/4961/stat : 4961 (npSolver-pbo-It) S 4959 4961 4113 0 -1 4202496 359 0 0 0 0 0 0 0 20 0 1 0 376383413 9367552 275 33554432000 4194304 5064252 140735192030544 140735192029456 217410332238 0 65536 4100 65538 18446744071579302229 0 0 17 4 0 0 0 0 0
/proc/4961/statm: 2287 275 233 213 0 72 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 9148

[startup+0.100177 s]
/proc/loadavg: 2.02 2.01 1.94 3/179 4961
/proc/meminfo: memFree=29450504/32873648 swapFree=7628/7628
[pid=4961] ppid=4959 vsize=9148 CPUtime=0 cores=0,2,4,6
/proc/4961/stat : 4961 (npSolver-pbo-It) S 4959 4961 4113 0 -1 4202496 359 0 0 0 0 0 0 0 20 0 1 0 376383413 9367552 275 33554432000 4194304 5064252 140735192030544 140735192029456 217410332238 0 65536 4100 65538 18446744071579302229 0 0 17 4 0 0 0 0 0
/proc/4961/statm: 2287 275 233 213 0 72 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 9148

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

Child status: 0
Real time (s): 0.111002
CPU time (s): 0.106983
CPU user time (s): 0.088986
CPU system time (s): 0.017997
CPU usage (%): 96.3793
Max. virtual memory (cumulated for all children) (KiB): 9148

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.088986
system time used= 0.017997
maximum resident set size= 29224
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 6075
page faults= 0
swaps= 0
block input operations= 0
block output operations= 232
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 27
involuntary context switches= 14

runsolver used 0.002999 second user time and 0.002999 second system time

The end

Launcher Data 

Begin job on node122 at 2012-06-07 22:56:14
IDJOB=3747783
IDBENCH=47941
IDSOLVER=2332
FILE ID=node122/3747783-1339102574
RUNJOBID= node122-1339098177-4129
PBS_JOBID= 14643731
Free space on /tmp= 70792 MiB

SOLVER NAME= npSolver inc-topDown
BENCH NAME= PB07/normalized-PB07/OPT-SMALLINT-NLC/submittedPB07/roussel/factor-mod-B/factor-mod-size=7-P0=37-P1=43-B.opb
COMMAND LINE= DIR/npSolver-pbo-Itd.sh BENCHNAME RANDOMSEED TMPDIR DIR
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3747783-1339102574/watcher-3747783-1339102574 -o /tmp/evaluation-result-3747783-1339102574/solver-3747783-1339102574 -C 1800 -W 1900 -M 15500  HOME/npSolver-pbo-Itd.sh HOME/instance-3747783-1339102574.opb 2070020909 HOME HOME

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 15500 MiB
NBCORE= 4

MD5SUM BENCH= 2fc96c84e9a32377eb9e70bf4047222f
RANDOM SEED=2070020909

node122.alineos.net Linux 2.6.32-71.29.1.el6.x86_64 #1 SMP Mon Jun 27 19:49:27 BST 2011

/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.533
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 0
cpu cores	: 4
apicid		: 0
initial apicid	: 0
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 popcnt lahf_lm ida tpr_shadow vnmi flexpriority ept vpid
bogomips	: 5333.06
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.533
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 0
cpu cores	: 4
apicid		: 16
initial apicid	: 16
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 popcnt lahf_lm ida tpr_shadow vnmi flexpriority ept vpid
bogomips	: 5331.91
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management:

processor	: 2
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.533
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 1
cpu cores	: 4
apicid		: 2
initial apicid	: 2
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 popcnt lahf_lm ida tpr_shadow vnmi flexpriority ept vpid
bogomips	: 5332.04
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management:

processor	: 3
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.533
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 1
cpu cores	: 4
apicid		: 18
initial apicid	: 18
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 popcnt lahf_lm ida tpr_shadow vnmi flexpriority ept vpid
bogomips	: 5331.91
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management:

processor	: 4
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.533
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 2
cpu cores	: 4
apicid		: 4
initial apicid	: 4
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 popcnt lahf_lm ida tpr_shadow vnmi flexpriority ept vpid
bogomips	: 5331.91
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management:

processor	: 5
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.533
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 2
cpu cores	: 4
apicid		: 20
initial apicid	: 20
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 popcnt lahf_lm ida tpr_shadow vnmi flexpriority ept vpid
bogomips	: 5438.54
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management:

processor	: 6
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.533
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 3
cpu cores	: 4
apicid		: 6
initial apicid	: 6
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 popcnt lahf_lm ida tpr_shadow vnmi flexpriority ept vpid
bogomips	: 5331.91
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management:

processor	: 7
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.533
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 3
cpu cores	: 4
apicid		: 22
initial apicid	: 22
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 popcnt lahf_lm ida tpr_shadow vnmi flexpriority ept vpid
bogomips	: 5331.91
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:       32873648 kB
MemFree:        29450768 kB
Buffers:           53256 kB
Cached:          1171972 kB
SwapCached:         2144 kB
Active:          1890404 kB
Inactive:         754204 kB
Active(anon):    1419436 kB
Inactive(anon):     2216 kB
Active(file):     470968 kB
Inactive(file):   751988 kB
Unevictable:        7628 kB
Mlocked:            7628 kB
SwapTotal:      67108856 kB
SwapFree:       67099472 kB
Dirty:              8616 kB
Writeback:             0 kB
AnonPages:       1427088 kB
Mapped:            10012 kB
Shmem:                 0 kB
Slab:             637176 kB
SReclaimable:      80500 kB
SUnreclaim:       556676 kB
KernelStack:        1512 kB
PageTables:         6636 kB
NFS_Unstable:          0 kB
Bounce:                0 kB
WritebackTmp:          0 kB
CommitLimit:    83545680 kB
Committed_AS:    1766096 kB
VmallocTotal:   34359738367 kB
VmallocUsed:      346400 kB
VmallocChunk:   34341988052 kB
HardwareCorrupted:     0 kB
AnonHugePages:   1079296 kB
HugePages_Total:       0
HugePages_Free:        0
HugePages_Rsvd:        0
HugePages_Surp:        0
Hugepagesize:       2048 kB
DirectMap4k:        7680 kB
DirectMap2M:    33538048 kB

Free space on /tmp at the end= 70784 MiB
End job on node122 at 2012-06-07 22:56:14