Trace number 2681441

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 7.51486 7.51743

General information on the benchmark

Namenormalized-PB07/OPT-SMALLINT-NLC/submittedPB07/roussel/factor-mod-B/
factor-mod-size=5-P0=5-P1=23-P2=17-P3=7-P4=23-P5=23-P6=17-P7=31-B.opb
MD5SUM0a6c01fa713de22da499a43dc9d6a250
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 benchmark0.172973
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 variables105
Total number of constraints15
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 constraints15
Minimum length of a constraint5
Maximum length of a constraint35
Number of terms in the objective function 5
Biggest coefficient in the objective function 16
Number of bits for the biggest coefficient in the objective function 5
Sum of the numbers in the objective function 31
Number of bits of the sum of numbers in the objective function 5
Biggest number in a constraint 512
Number of bits of the biggest number in a constraint 10
Biggest sum of numbers in a constraint 1984
Number of bits of the biggest sum of numbers11
Number of products (including duplicates)175
Sum of products size (including duplicates)350
Number of different products175
Sum of products size350

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 190/0 clauses 175/0 units 0
0.00/0.00	c vars 105
0.00/0.00	c objective 5 + 0
1.89/1.90	c 1.63875 8.38672 2868 55613
1.89/1.90	o 9
2.99/3.01	c 2.6106 8.58203 1082 91245
2.99/3.01	o 3
7.39/7.50	c 6.47302 8.58203 642 221953
7.39/7.50	s OPTIMUM FOUND
7.39/7.50	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 -x71 -x72 -x73 -x74 -x75 x76 x77 -x78 -x79 x80 -x81 -x82 -x83 -x84 -x85 -x86 -x87 -x88 -x89 -x90 -x91 -x92 x93 -x94 -x95 x96 -x97 x98 -x99 x100 -x101 x102 -x103 -x104 -x105

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-2681441-1277498104/watcher-2681441-1277498104 -o /tmp/evaluation-result-2681441-1277498104/solver-2681441-1277498104 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2681441-1277498104.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 0.97 3/105 28844
/proc/meminfo: memFree=1841716/2059040 swapFree=4139416/4192956
[pid=28844] ppid=28842 vsize=3444 CPUtime=0
/proc/28844/stat : 28844 (pbct) R 28842 28844 28384 0 -1 4202496 566 0 0 0 0 0 0 0 25 0 1 0 91104512 3526656 486 1992294400 134512640 136421960 4294808272 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/28844/statm: 861 488 189 467 0 392 0

[startup+0.0568531 s]
/proc/loadavg: 1.00 1.00 0.97 3/105 28844
/proc/meminfo: memFree=1841716/2059040 swapFree=4139416/4192956
[pid=28844] ppid=28842 vsize=8056 CPUtime=0.05
/proc/28844/stat : 28844 (pbct) R 28842 28844 28384 0 -1 4202496 1721 0 0 0 5 0 0 0 25 0 1 0 91104512 8249344 1641 1992294400 134512640 136421960 4294808272 18446744073709551615 134872457 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/28844/statm: 2014 1642 212 467 0 1545 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 8056

[startup+0.100857 s]
/proc/loadavg: 1.00 1.00 0.97 3/105 28844
/proc/meminfo: memFree=1841716/2059040 swapFree=4139416/4192956
[pid=28844] ppid=28842 vsize=8188 CPUtime=0.09
/proc/28844/stat : 28844 (pbct) R 28842 28844 28384 0 -1 4202496 1758 0 0 0 8 1 0 0 25 0 1 0 91104512 8384512 1678 1992294400 134512640 136421960 4294808272 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/28844/statm: 2047 1678 214 467 0 1578 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 8188

[startup+0.300878 s]
/proc/loadavg: 1.00 1.00 0.97 3/105 28844
/proc/meminfo: memFree=1841716/2059040 swapFree=4139416/4192956
[pid=28844] ppid=28842 vsize=8320 CPUtime=0.29
/proc/28844/stat : 28844 (pbct) R 28842 28844 28384 0 -1 4202496 1790 0 0 0 25 4 0 0 25 0 1 0 91104512 8519680 1710 1992294400 134512640 136421960 4294808272 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/28844/statm: 2080 1710 214 467 0 1611 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 8320

[startup+0.700921 s]
/proc/loadavg: 1.00 1.00 0.97 3/105 28844
/proc/meminfo: memFree=1841716/2059040 swapFree=4139416/4192956
[pid=28844] ppid=28842 vsize=8452 CPUtime=0.69
/proc/28844/stat : 28844 (pbct) R 28842 28844 28384 0 -1 4202496 1813 0 0 0 60 9 0 0 25 0 1 0 91104512 8654848 1733 1992294400 134512640 136421960 4294808272 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/28844/statm: 2113 1733 214 467 0 1644 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 8452

[startup+1.50101 s]
/proc/loadavg: 1.00 1.00 0.97 2/106 28845
/proc/meminfo: memFree=1835384/2059040 swapFree=4139416/4192956
[pid=28844] ppid=28842 vsize=8584 CPUtime=1.49
/proc/28844/stat : 28844 (pbct) R 28842 28844 28384 0 -1 4202496 1849 0 0 0 129 20 0 0 25 0 1 0 91104512 8790016 1769 1992294400 134512640 136421960 4294808272 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/28844/statm: 2146 1769 214 467 0 1677 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 8584

[startup+3.10118 s]
/proc/loadavg: 1.00 1.00 0.97 2/106 28845
/proc/meminfo: memFree=1835136/2059040 swapFree=4139416/4192956
[pid=28844] ppid=28842 vsize=8784 CPUtime=3.09
/proc/28844/stat : 28844 (pbct) R 28842 28844 28384 0 -1 4202496 1916 0 0 0 268 41 0 0 25 0 1 0 91104512 8994816 1834 1992294400 134512640 136421960 4294808272 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/28844/statm: 2196 1834 237 467 0 1727 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 8784

[startup+6.30052 s]
/proc/loadavg: 1.00 1.00 0.97 2/106 28845
/proc/meminfo: memFree=1834888/2059040 swapFree=4139416/4192956
[pid=28844] ppid=28842 vsize=8784 CPUtime=6.29
/proc/28844/stat : 28844 (pbct) R 28842 28844 28384 0 -1 4202496 1916 0 0 0 544 85 0 0 25 0 1 0 91104512 8994816 1834 1992294400 134512640 136421960 4294808272 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/28844/statm: 2196 1834 237 467 0 1727 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 8784

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

[startup+7.1006 s]
/proc/loadavg: 1.00 1.00 0.97 2/106 28845
/proc/meminfo: memFree=1834888/2059040 swapFree=4139416/4192956
[pid=28844] ppid=28842 vsize=8784 CPUtime=7.09
/proc/28844/stat : 28844 (pbct) R 28842 28844 28384 0 -1 4202496 1916 0 0 0 612 97 0 0 25 0 1 0 91104512 8994816 1834 1992294400 134512640 136421960 4294808272 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/28844/statm: 2196 1834 237 467 0 1727 0
Current children cumulated CPU time (s) 7.09
Current children cumulated vsize (KiB) 8784

[startup+7.50065 s]
/proc/loadavg: 1.00 1.00 0.97 2/106 28845
/proc/meminfo: memFree=1834888/2059040 swapFree=4139416/4192956
[pid=28844] ppid=28842 vsize=8784 CPUtime=7.49
/proc/28844/stat : 28844 (pbct) R 28842 28844 28384 0 -1 4202496 1919 0 0 0 647 102 0 0 25 0 1 0 91104512 8994816 1836 1992294400 134512640 136421960 4294808272 18446744073709551615 135878161 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/28844/statm: 2066 1706 239 467 0 1597 0
Current children cumulated CPU time (s) 7.49
Current children cumulated vsize (KiB) 8784

Child status: 0
Real time (s): 7.51743
CPU time (s): 7.51486
CPU user time (s): 6.48901
CPU system time (s): 1.02584
CPU usage (%): 99.9658
Max. virtual memory (cumulated for all children) (KiB): 8784

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 6.48901
system time used= 1.02584
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1921
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= 13

runsolver used 0.011998 second user time and 0.048992 second system time

The end

Launcher Data 

Begin job on node081 at 2010-06-25 22:35:04
IDJOB=2681441
IDBENCH=47930
IDSOLVER=1192
FILE ID=node081/2681441-1277498104
PBS_JOBID= 11190550
Free space on /tmp= 121788 MiB

SOLVER NAME= PB/CT 0.1 fixed
BENCH NAME= PB07/normalized-PB07/OPT-SMALLINT-NLC/submittedPB07/roussel/factor-mod-B/factor-mod-size=5-P0=5-P1=23-P2=17-P3=7-P4=23-P5=23-P6=17-P7=31-B.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2681441-1277498104/watcher-2681441-1277498104 -o /tmp/evaluation-result-2681441-1277498104/solver-2681441-1277498104 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2681441-1277498104.opb

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

MD5SUM BENCH= 0a6c01fa713de22da499a43dc9d6a250
RANDOM SEED=475832532

node081.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		: 3000.212
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	: 6000.42
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		: 3000.212
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:       1842244 kB
Buffers:         32580 kB
Cached:          87876 kB
SwapCached:       6028 kB
Active:          60904 kB
Inactive:        72320 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1842244 kB
SwapTotal:     4192956 kB
SwapFree:      4139416 kB
Dirty:            1900 kB
Writeback:           0 kB
AnonPages:       11400 kB
Mapped:          11908 kB
Slab:            61552 kB
PageTables:       4104 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   180596 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= 121784 MiB
End job on node081 at 2010-06-25 22:35:12