Trace number 459418

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, and are wall clock time (not CPU 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
PBS4_v2 2007-03-23OPT3 1.64475 1.64575

General information on the benchmark

Namenormalized-PB07/OPT-SMALLINT-NLC/submittedPB07/roussel/factor-mod-B/
factor-mod-size=5-P0=17-P1=13-P2=11-P3=19-P4=11-P5=23-B.opb
MD5SUM8f089c1c530fbf8e6ea9af6ce86dd685
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 benchmark0.041992
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 variables75
Total number of constraints11
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 constraints11
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)125
Sum of products size (including duplicates)250
Number of different products125
Sum of products size250

Quality of the solution as a function of time


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

Solver Data (download as text)

0.00/0.00	c PBS v4 by Bashar Al-Rawi & Fadi Aloul
0.00/0.00	c Solving /tmp/evaluation/459418-1178654422/instance-459418-1178654422.opb ......
0.00/0.05	c done parsing opb.
0.00/0.05	o 7
0.09/0.14	o 3
1.59/1.64	o 3
1.59/1.64	s OPTIMUM FOUND
1.59/1.64	c Total Run Time					1.63875
1.59/1.64	v x1 -x10 -x100 x101 -x102 x103 x104 -x105 x106 -x107 x108 x109 x11 -x110 x111 -x112 x113 x114 -x115 -x116 -x117 -x118 -x119 x12
1.59/1.64	v -x120 x121 -x122 x123 x124 -x125 x126 x127 -x128 x129 x13 -x130 -x131 -x132 -x133 -x134 -x135 -x136 -x137 -x138 -x139 -x14
1.59/1.64	v -x140 x141 x142 -x143 x144 -x145 x146 x147 -x148 x149 x15 -x150 x151 x152 -x153 -x154 x155 x156 x157 -x158 -x159 x16 x160 -x161
1.59/1.64	v -x162 -x163 -x164 -x165 -x166 -x167 -x168 -x169 -x17 -x170 x171 x172 -x173 -x174 x175 x176 -x177 -x178 x179 -x18 -x180 -x181
1.59/1.64	v -x182 -x183 -x184 -x185 -x186 -x187 -x188 -x189 x19 -x190 -x191 -x192 -x193 -x194 -x195 x196 -x197 -x198 x199 x2 x20 -x200
1.59/1.64	v x21 x22 -x23 -x24 x25 x26 -x27 -x28 -x29 -x3 x30 x31 -x32 x33 x34 -x35 x36 x37 -x38 x39 -x4 -x40 x41 x42 -x43 -x44 x45 x46 -x47 -x48
1.59/1.64	v x49 -x5 -x50 x51 -x52 -x53 -x54 -x55 x56 -x57 -x58 x59 x6 -x60 -x61 -x62 -x63 x64 -x65 x66 x67 -x68 x69 x7 -x70 -x71 -x72 x73 -x74
1.59/1.64	v -x75 x76 x77 -x78 -x79 x8 -x80 x81 x82 -x83 -x84 -x85 x86 x87 -x88 -x89 x9 -x90 x91 x92 -x93 -x94 -x95 -x96 -x97 -x98 -x99

Verifier Data (download as text)

OK	3

Conversion Script Data (download as text)

Linearizing /tmp/evaluation/459418-1178654422/instance-459418-1178654422.opb

Watcher Data (download as text)

runsolver version 3.2.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node25/watcher-459418-1178654422 -o ROOT/results/node25/solver-459418-1178654422 -C 1800 -W 3600 -M 1800 --output-limit 1,15 PBS4_SAT07v2 /tmp/evaluation/459418-1178654422/instance-459418-1178654422.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): 3600 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
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.91 0.98 0.99 3/64 14283
/proc/meminfo: memFree=1929176/2055920 swapFree=4183088/4192956
[pid=14283] ppid=14281 vsize=1320 CPUtime=0
/proc/14283/stat : 14283 (PBS4_SAT07v2) R 14281 14283 13855 0 -1 4194304 148 0 0 0 0 0 0 0 18 0 1 0 313359370 1351680 130 18446744073709551615 134512640 135410602 4294956704 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/14283/statm: 330 130 90 219 0 107 0

[startup+0.0863749 s]
/proc/loadavg: 0.91 0.98 0.99 3/64 14283
/proc/meminfo: memFree=1929176/2055920 swapFree=4183088/4192956
[pid=14283] ppid=14281 vsize=1724 CPUtime=0.08
/proc/14283/stat : 14283 (PBS4_SAT07v2) R 14281 14283 13855 0 -1 4194304 277 0 0 0 8 0 0 0 18 0 1 0 313359370 1765376 259 18446744073709551615 134512640 135410602 4294956704 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/14283/statm: 431 259 102 219 0 208 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 1724

[startup+0.101377 s]
/proc/loadavg: 0.91 0.98 0.99 3/64 14283
/proc/meminfo: memFree=1929176/2055920 swapFree=4183088/4192956
[pid=14283] ppid=14281 vsize=1916 CPUtime=0.09
/proc/14283/stat : 14283 (PBS4_SAT07v2) R 14281 14283 13855 0 -1 4194304 303 0 0 0 9 0 0 0 18 0 1 0 313359370 1961984 285 18446744073709551615 134512640 135410602 4294956704 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/14283/statm: 479 285 102 219 0 256 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1916

[startup+0.301411 s]
/proc/loadavg: 0.91 0.98 0.99 3/64 14283
/proc/meminfo: memFree=1929176/2055920 swapFree=4183088/4192956
[pid=14283] ppid=14281 vsize=2624 CPUtime=0.29
/proc/14283/stat : 14283 (PBS4_SAT07v2) R 14281 14283 13855 0 -1 4194304 501 0 0 0 29 0 0 0 19 0 1 0 313359370 2686976 483 18446744073709551615 134512640 135410602 4294956704 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/14283/statm: 656 483 102 219 0 433 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2624

[startup+0.701479 s]
/proc/loadavg: 0.91 0.98 0.99 3/64 14283
/proc/meminfo: memFree=1929176/2055920 swapFree=4183088/4192956
[pid=14283] ppid=14281 vsize=3912 CPUtime=0.69
/proc/14283/stat : 14283 (PBS4_SAT07v2) R 14281 14283 13855 0 -1 4194304 692 0 0 0 68 1 0 0 22 0 1 0 313359370 4005888 674 18446744073709551615 134512640 135410602 4294956704 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/14283/statm: 978 674 102 219 0 755 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 3912

[startup+1.50162 s]
/proc/loadavg: 0.91 0.98 0.99 2/65 14284
/proc/meminfo: memFree=1926416/2055920 swapFree=4183088/4192956
[pid=14283] ppid=14281 vsize=4376 CPUtime=1.49
/proc/14283/stat : 14283 (PBS4_SAT07v2) R 14281 14283 13855 0 -1 4194304 958 0 0 0 147 2 0 0 25 0 1 0 313359370 4481024 891 18446744073709551615 134512640 135410602 4294956704 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/14283/statm: 1094 891 102 219 0 871 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 4376

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

[startup+1.60163 s]
/proc/loadavg: 0.91 0.98 0.99 2/65 14284
/proc/meminfo: memFree=1926416/2055920 swapFree=4183088/4192956
[pid=14283] ppid=14281 vsize=4376 CPUtime=1.59
/proc/14283/stat : 14283 (PBS4_SAT07v2) R 14281 14283 13855 0 -1 4194304 993 0 0 0 157 2 0 0 25 0 1 0 313359370 4481024 926 18446744073709551615 134512640 135410602 4294956704 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/14283/statm: 1094 926 102 219 0 871 0
Current children cumulated CPU time (s) 1.59
Current children cumulated vsize (KiB) 4376

Child status: 0
Real time (s): 1.64575
CPU time (s): 1.64475
CPU user time (s): 1.62175
CPU system time (s): 0.022996
CPU usage (%): 99.9394
Max. virtual memory (cumulated for all children) (KiB): 4376

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.62175
system time used= 0.022996
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1008
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= 8
involuntary context switches= 2

runsolver used 0.004999 second user time and 0.007998 second system time

The end

Launcher Data (download as text)

Begin job on node25 on Tue May  8 20:00:23 UTC 2007

IDJOB= 459418
IDBENCH= 47879
IDSOLVER= 200
FILE ID= node25/459418-1178654422

PBS_JOBID= 5218400

Free space on /tmp= 66562 MiB

SOLVER NAME= PBS4_v2 2007-03-23
BENCH NAME= HOME/pub/bench/PB07/normalized-PB07/OPT-SMALLINT-NLC/submittedPB07/roussel/factor-mod-B/factor-mod-size=5-P0=17-P1=13-P2=11-P3=19-P4=11-P5=23-B.opb
COMMAND LINE= PBS4_SAT07v2 /tmp/evaluation/459418-1178654422/instance-459418-1178654422.opb
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node25/convwatcher-459418-1178654422 -o ROOT/results/node25/conversion-459418-1178654422 -C 600 -M 1800 PBconversionToLinear /tmp/evaluation/459418-1178654422/instance-459418-1178654422.opb
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node25/watcher-459418-1178654422 -o ROOT/results/node25/solver-459418-1178654422 -C 1800 -W 3600 -M 1800 --output-limit 1,15  PBS4_SAT07v2 /tmp/evaluation/459418-1178654422/instance-459418-1178654422.opb

META MD5SUM SOLVER= 18cd8c68a4d3bfb01f29079966475a33
MD5SUM BENCH=  8f089c1c530fbf8e6ea9af6ce86dd685

RANDOM SEED= 190296441

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node25.alineos.net 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005 x86_64 x86_64 x86_64 GNU/Linux

/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		: 3000.261
cache size	: 2048 KB
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 pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5914.62
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		: 3000.261
cache size	: 2048 KB
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 pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1929648 kB
Buffers:          6832 kB
Cached:          32272 kB
SwapCached:       3804 kB
Active:          34212 kB
Inactive:        14708 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1929648 kB
SwapTotal:     4192956 kB
SwapFree:      4183088 kB
Dirty:            2268 kB
Writeback:           0 kB
Mapped:          15932 kB
Slab:            63432 kB
Committed_AS:  8381280 kB
PageTables:       1472 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66562 MiB

End job on node25 on Tue May  8 20:00:25 UTC 2007