Trace number 2701907

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
wbo 1.4b (fixed)OPT2 0.080986 0.08106

General information on the benchmark

Namenormalized-PB07/OPT-SMALLINT-NLC/submittedPB07/roussel/
factor-mod-B/factor-mod-size=5-P0=31-P1=23-P2=2-P3=17-P4=17-B.opb
MD5SUMab5c167d631c36380726b7ea7a7cf75a
Bench CategoryOPT-SMALLINT-NLC (optimisation, small integers, non linear constraints)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark2
Best CPU time to get the best result obtained on this benchmark0.011997
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 2
Optimality of the best value was proved YES
Number of variables60
Total number of constraints9
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 constraints9
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)100
Sum of products size (including duplicates)200
Number of different products100
Sum of products size200

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 wbo 1.4 beta - 20100610
0.00/0.00	c Parsing opb file format. File HOME/instance-2701907-1278546255.opb.
0.00/0.00	c Instance file HOME/instance-2701907-1278546255.opb
0.00/0.00	c File size is 7443 bytes.
0.00/0.00	c Highest Coefficient sum: 1984
0.00/0.00	c ============================[ Problem Statistics ]=============================
0.00/0.00	c |                                                                             |
0.00/0.00	c |  Parsing time:          0.00         s                                      |
0.00/0.00	c |  Number Variables:      160                                                 |
0.00/0.00	c |  Number Clauses:        100                                                 |
0.00/0.00	c |  Number Cardinality:    0                                                   |
0.00/0.00	c |  Number PB Constraints: 113                                                 |
0.00/0.00	c ============================[ Search Statistics ]==============================
0.00/0.00	c | Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.00/0.00	c |           |    Vars     Ctrs     Lits |    Limit  Clauses Lit/Cl |          |
0.00/0.00	c ===============================================================================
0.00/0.00	c |         0 |     160      213      895 |     5000        0    nan |  0.000 % |
0.00/0.00	c |       103 |     160      213      895 |     5500      103     25 |  0.023 % |
0.00/0.01	c |       253 |     160      213      895 |     6050      253     23 |  0.023 % |
0.00/0.01	c ===============================================================================
0.00/0.01	c New solution: 15
0.00/0.01	o 15
0.00/0.01	c Elapsed CPU time: 0.015997 s	Remaining CPU time: 179.984 s
0.00/0.01	c ===============================================================================
0.00/0.01	c |       445 |     160      214      900 |     5000      445     21 |  0.023 % |
0.00/0.02	c |       546 |     153      214      900 |     5500      512     23 |  4.379 % |
0.00/0.02	c |       697 |     153      214      900 |     6050      663     23 |  4.379 % |
0.00/0.02	c ===============================================================================
0.00/0.02	c New solution: 13
0.00/0.02	o 13
0.00/0.02	c Elapsed CPU time: 0.027995 s	Remaining CPU time: 179.972 s
0.00/0.02	c ===============================================================================
0.00/0.02	c |       769 |     153      215      905 |     5000      735     23 |  4.379 % |
0.00/0.03	c |       869 |     153      215      905 |     5500      835     23 |  4.402 % |
0.00/0.03	c |      1020 |     153      215      905 |     6050      986     22 |  4.379 % |
0.04/0.04	c |      1246 |     153      215      905 |     6655     1212     22 |  4.379 % |
0.04/0.06	c |      1583 |     153      215      905 |     7320     1549     21 |  4.391 % |
0.04/0.06	c ===============================================================================
0.04/0.06	c New solution: 6
0.04/0.06	o 6
0.04/0.06	c Elapsed CPU time: 0.06499 s	Remaining CPU time: 179.935 s
0.04/0.06	c ===============================================================================
0.04/0.06	c |      1761 |     153      216      910 |     5000     1727     21 |  4.391 % |
0.04/0.07	c ===============================================================================
0.04/0.07	c New solution: 3
0.04/0.07	o 3
0.04/0.07	c Elapsed CPU time: 0.068989 s	Remaining CPU time: 179.931 s
0.04/0.07	c ===============================================================================
0.04/0.07	c |      1837 |     146      217      915 |     5000     1757     21 |  4.391 % |
0.04/0.07	c |      1939 |     146      217      915 |     5500     1859     21 | 18.149 % |
0.04/0.07	c ===============================================================================
0.04/0.07	c New solution: 2
0.04/0.07	o 2
0.04/0.07	c Elapsed CPU time: 0.073988 s	Remaining CPU time: 179.926 s
0.04/0.07	c ===============================================================================
0.04/0.07	c ===============================================================================
0.04/0.07	c Best Solution: 2
0.04/0.07	s OPTIMUM FOUND
0.04/0.07	c Total CPU time: 0.073988 s
0.04/0.07	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 -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 -x26 x27 -x28 -x29 -x30 x41 -x42 -x43 -x44 -x45 -x86 x87 -x88 -x89 -x90 -x91 -x92 -x93 -x94 -x95 -x96 -x97 -x98 -x99 -x100 -x101 -x102 -x103 -x104 -x105 -x106 x107 -x108 -x109 -x110 -x31 x32 -x33 -x34 -x35 x46 -x47 -x48 -x49 -x50 -x111 x112 -x113 -x114 -x115 -x116 -x117 -x118 -x119 -x120 -x121 -x122 -x123 -x124 -x125 -x126 x127 -x128 -x129 -x130 -x131 -x132 -x133 -x134 -x135 -x36 x37 -x38 -x39 x40 -x51 -x52 -x53 -x54 -x55 -x136 x137 -x138 -x139 x140 -x141 -x142 -x143 -x144 -x145 -x146 -x147 -x148 -x149 -x150 -x151 -x152 -x153 -x154 -x155 -x156 x157 -x158 -x159 x160 x56 -x57 -x58 x59 -x60

Verifier Data 

OK	2

Watcher Data 

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2701907-1278546255/watcher-2701907-1278546255 -o /tmp/evaluation-result-2701907-1278546255/solver-2701907-1278546255 -C 1800 -W 2000 -M 1800 wbo1.4b -file-format=opb -time-limit=1800 HOME/instance-2701907-1278546255.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: 0.65 0.18 0.06 3/106 26187
/proc/meminfo: memFree=1720992/2059040 swapFree=4139412/4192956
[pid=26187] ppid=26185 vsize=2572 CPUtime=0
/proc/26187/stat : 26187 (wbo1.4b) R 26185 26187 25904 0 -1 4202496 285 0 0 0 0 0 0 0 20 0 1 0 22839232 2633728 201 1992294400 134512640 135752675 4289311072 18446744073709551615 135271249 0 0 4096 3 0 0 0 17 0 0 0 0
/proc/26187/statm: 643 201 145 303 0 338 0

[startup+0.0449979 s]
/proc/loadavg: 0.65 0.18 0.06 3/106 26187
/proc/meminfo: memFree=1720992/2059040 swapFree=4139412/4192956
[pid=26187] ppid=26185 vsize=2704 CPUtime=0.04
/proc/26187/stat : 26187 (wbo1.4b) R 26185 26187 25904 0 -1 4202496 332 0 0 0 4 0 0 0 20 0 1 0 22839232 2768896 248 1992294400 134512640 135752675 4289311072 18446744073709551615 135271249 0 0 4096 3 0 0 0 17 0 0 0 0
/proc/26187/statm: 676 248 145 303 0 371 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 2704

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

[startup+0.0449979 s]
/proc/loadavg: 0.65 0.18 0.06 3/106 26187
/proc/meminfo: memFree=1720992/2059040 swapFree=4139412/4192956
[pid=26187] ppid=26185 vsize=2704 CPUtime=0.04
/proc/26187/stat : 26187 (wbo1.4b) R 26185 26187 25904 0 -1 4202496 332 0 0 0 4 0 0 0 20 0 1 0 22839232 2768896 248 1992294400 134512640 135752675 4289311072 18446744073709551615 135271249 0 0 4096 3 0 0 0 17 0 0 0 0
/proc/26187/statm: 676 248 145 303 0 371 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 2704

Child status: 0
Real time (s): 0.08106
CPU time (s): 0.080986
CPU user time (s): 0.073988
CPU system time (s): 0.006998
CPU usage (%): 99.9088
Max. virtual memory (cumulated for all children) (KiB): 2704

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.073988
system time used= 0.006998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 370
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= 2

runsolver used 0.005999 second user time and 0.007998 second system time

The end

Launcher Data 

Begin job on node003 at 2010-07-08 01:44:15
IDJOB=2701907
IDBENCH=47888
IDSOLVER=1190
FILE ID=node003/2701907-1278546255
PBS_JOBID= 11239527
Free space on /tmp= 62572 MiB

SOLVER NAME= wbo 1.4b (fixed)
BENCH NAME= PB07/normalized-PB07/OPT-SMALLINT-NLC/submittedPB07/roussel/factor-mod-B/factor-mod-size=5-P0=31-P1=23-P2=2-P3=17-P4=17-B.opb
COMMAND LINE= wbo1.4b -file-format=opb -time-limit=TIMEOUT BENCHNAME
CONVERSION SCRIPT= PBconversionToLinear BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2701907-1278546255/watcher-2701907-1278546255 -o /tmp/evaluation-result-2701907-1278546255/solver-2701907-1278546255 -C 1800 -W 2000 -M 1800  wbo1.4b -file-format=opb -time-limit=1800 HOME/instance-2701907-1278546255.opb

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

MD5SUM BENCH= ab5c167d631c36380726b7ea7a7cf75a
RANDOM SEED=2122160328

node003.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		: 3000.224
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	: 6000.44
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		: 3000.224
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:       1723580 kB
Buffers:         57020 kB
Cached:         188256 kB
SwapCached:       9064 kB
Active:         133812 kB
Inactive:       127272 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1723580 kB
SwapTotal:     4192956 kB
SwapFree:      4139412 kB
Dirty:            2800 kB
Writeback:           0 kB
AnonPages:       11384 kB
Mapped:          11852 kB
Slab:            52560 kB
PageTables:       4188 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   180456 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    264948 kB
VmallocChunk: 34359471699 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

CONVERSION COMMAND LINE= PBconversionToLinear HOME/instance-2701907-1278546255.opb

Free space on /tmp at the end= 62568 MiB
End job on node003 at 2010-07-08 01:44:15