Trace number 2702185

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 0.095984 0.0966479

General information on the benchmark

Namenormalized-PB07/OPT-SMALLINT-NLC/submittedPB07/roussel/
factor-mod-B/factor-mod-size=6-P0=2-P1=31-P2=13-P3=31-P4=31-B.opb
MD5SUM626c966be089469ef760f193c8b19154
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 benchmark0.336947
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 variables72
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 constraint6
Maximum length of a constraint48
Number of terms in the objective function 6
Biggest coefficient in the objective function 32
Number of bits for the biggest coefficient in the objective function 6
Sum of the numbers in the objective function 63
Number of bits of the sum of numbers in the objective function 6
Biggest number in a constraint 2048
Number of bits of the biggest number in a constraint 12
Biggest sum of numbers in a constraint 8064
Number of bits of the biggest sum of numbers13
Number of products (including duplicates)144
Sum of products size (including duplicates)288
Number of different products144
Sum of products size288

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 wbo 1.4 beta - 20100610
0.00/0.01	c Parsing opb file format. File HOME/instance-2702185-1278546821.opb.
0.00/0.01	c Instance file HOME/instance-2702185-1278546821.opb
0.00/0.01	c File size is 10692 bytes.
0.00/0.01	c Highest Coefficient sum: 8064
0.00/0.01	c ============================[ Problem Statistics ]=============================
0.00/0.01	c |                                                                             |
0.00/0.01	c |  Parsing time:          0.00         s                                      |
0.00/0.01	c |  Number Variables:      216                                                 |
0.00/0.01	c |  Number Clauses:        144                                                 |
0.00/0.01	c |  Number Cardinality:    0                                                   |
0.00/0.01	c |  Number PB Constraints: 157                                                 |
0.00/0.01	c ============================[ Search Statistics ]==============================
0.00/0.01	c | Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.00/0.01	c |           |    Vars     Ctrs     Lits |    Limit  Clauses Lit/Cl |          |
0.00/0.01	c ===============================================================================
0.00/0.01	c |         0 |     216      301     1266 |     5000        0    nan |  0.000 % |
0.00/0.01	c |       101 |     216      301     1266 |     5500      101     35 |  0.015 % |
0.00/0.01	c |       251 |     216      301     1266 |     6050      251     36 |  0.015 % |
0.00/0.01	c ===============================================================================
0.00/0.01	c New solution: 3
0.00/0.01	o 3
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 |       300 |     216      302     1272 |     5000      300     35 |  0.015 % |
0.00/0.02	c |       401 |     175      302     1272 |     5500      392     37 | 18.997 % |
0.00/0.02	c |       552 |     175      302     1272 |     6050      543     37 | 18.984 % |
0.00/0.04	c |       778 |     175      302     1272 |     6655      769     35 | 18.984 % |
0.05/0.06	c |      1115 |     175      302     1272 |     7320     1106     34 | 18.984 % |
0.05/0.09	c |      1621 |     175      302     1272 |     8052     1612     34 | 18.997 % |
0.05/0.09	c ===============================================================================
0.05/0.09	c New solution: 2
0.05/0.09	o 2
0.05/0.09	c Elapsed CPU time: 0.091986 s	Remaining CPU time: 179.908 s
0.05/0.09	c ===============================================================================
0.05/0.09	c ===============================================================================
0.05/0.09	c Best Solution: 2
0.05/0.09	s OPTIMUM FOUND
0.05/0.09	c Total CPU time: 0.091986 s
0.05/0.09	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 -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 -x106 -x107 -x108 -x31 x32 x33 -x34 -x35 -x36 -x49 -x50 -x51 -x52 -x53 -x54 -x109 x110 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 -x136 -x137 -x138 -x139 -x140 -x141 -x142 -x143 -x144 -x37 x38 -x39 -x40 x41 -x42 -x55 -x56 -x57 -x58 -x59 -x60 -x145 x146 -x147 -x148 x149 -x150 -x151 -x152 -x153 -x154 -x155 -x156 -x157 x158 -x159 -x160 x161 -x162 -x163 -x164 -x165 -x166 -x167 -x168 -x169 -x170 -x171 -x172 -x173 -x174 -x175 -x176 -x177 -x178 -x179 -x180 -x43 x44 -x45 x46 x47 -x48 x61 -x62 -x63 -x64 -x65 -x66 -x181 x182 -x183 x184 x185 -x186 -x187 x188 -x189 x190 x191 -x192 -x193 x194 -x195 x196 x197 -x198 -x199 x200 -x201 x202 x203 -x204 -x205 x206 -x207 x208 x209 -x210 -x211 -x212 -x213 -x214 -x215 -x216 -x67 -x68 x69 x70 -x71 -x72

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-2702185-1278546821/watcher-2702185-1278546821 -o /tmp/evaluation-result-2702185-1278546821/solver-2702185-1278546821 -C 1800 -W 2000 -M 1800 wbo1.4b -file-format=opb -time-limit=1800 HOME/instance-2702185-1278546821.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: 0.92 1.03 0.64 3/106 27831
/proc/meminfo: memFree=1904112/2059040 swapFree=4078928/4192956
[pid=27831] ppid=27829 vsize=2572 CPUtime=0
/proc/27831/stat : 27831 (wbo1.4b) R 27829 27831 27279 0 -1 4202496 289 0 0 0 0 0 0 0 19 0 1 0 22889449 2633728 204 1992294400 134512640 135752675 4286662848 18446744073709551615 135271249 0 0 4096 3 0 0 0 17 1 0 0 0
/proc/27831/statm: 643 204 145 303 0 338 0

[startup+0.0543371 s]
/proc/loadavg: 0.92 1.03 0.64 3/106 27831
/proc/meminfo: memFree=1904112/2059040 swapFree=4078928/4192956
[pid=27831] ppid=27829 vsize=2832 CPUtime=0.05
/proc/27831/stat : 27831 (wbo1.4b) R 27829 27831 27279 0 -1 4202496 347 0 0 0 5 0 0 0 19 0 1 0 22889449 2899968 262 1992294400 134512640 135752675 4286662848 18446744073709551615 135271249 0 0 4096 3 0 0 0 17 1 0 0 0
/proc/27831/statm: 708 262 145 303 0 403 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 2832

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

[startup+0.0543371 s]
/proc/loadavg: 0.92 1.03 0.64 3/106 27831
/proc/meminfo: memFree=1904112/2059040 swapFree=4078928/4192956
[pid=27831] ppid=27829 vsize=2832 CPUtime=0.05
/proc/27831/stat : 27831 (wbo1.4b) R 27829 27831 27279 0 -1 4202496 347 0 0 0 5 0 0 0 19 0 1 0 22889449 2899968 262 1992294400 134512640 135752675 4286662848 18446744073709551615 135271249 0 0 4096 3 0 0 0 17 1 0 0 0
/proc/27831/statm: 708 262 145 303 0 403 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 2832

Child status: 0
Real time (s): 0.0966479
CPU time (s): 0.095984
CPU user time (s): 0.092985
CPU system time (s): 0.002999
CPU usage (%): 99.3131
Max. virtual memory (cumulated for all children) (KiB): 2832

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.092985
system time used= 0.002999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 390
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= 3

runsolver used 0.004999 second user time and 0.007998 second system time

The end

Launcher Data 

Begin job on node044 at 2010-07-08 01:53:41
IDJOB=2702185
IDBENCH=48027
IDSOLVER=1190
FILE ID=node044/2702185-1278546821
PBS_JOBID= 11239496
Free space on /tmp= 62500 MiB

SOLVER NAME= wbo 1.4b (fixed)
BENCH NAME= PB07/normalized-PB07/OPT-SMALLINT-NLC/submittedPB07/roussel/factor-mod-B/factor-mod-size=6-P0=2-P1=31-P2=13-P3=31-P4=31-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-2702185-1278546821/watcher-2702185-1278546821 -o /tmp/evaluation-result-2702185-1278546821/solver-2702185-1278546821 -C 1800 -W 2000 -M 1800  wbo1.4b -file-format=opb -time-limit=1800 HOME/instance-2702185-1278546821.opb

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

MD5SUM BENCH= 626c966be089469ef760f193c8b19154
RANDOM SEED=614645314

node044.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		: 3000.267
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	: 6000.53
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		: 3000.267
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	: 5599.47
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1904764 kB
Buffers:          3512 kB
Cached:          33756 kB
SwapCached:      61316 kB
Active:          24100 kB
Inactive:        75852 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1904764 kB
SwapTotal:     4192956 kB
SwapFree:      4078928 kB
Dirty:            2864 kB
Writeback:           0 kB
AnonPages:        7520 kB
Mapped:           5724 kB
Slab:            32436 kB
PageTables:       4168 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   183752 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-2702185-1278546821.opb

Free space on /tmp at the end= 62496 MiB
End job on node044 at 2010-07-08 01:53:42