Trace number 430612

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 2007-03-23OPT2 1.78173 1.78401

General information on the benchmark

Namenormalized-PB07/OPT-SMALLINT-NLC/submittedPB07/roussel/factor-mod-B/
factor-mod-size=5-P0=3-P1=19-P2=2-P3=19-P4=17-P5=13-P6=37-P7=5-B.opb
MD5SUMade4038b6c8c483ca1d44b3698e37050
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 benchmark0.054991
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 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 (download as text)

0.00/0.00	c PBS v4 by Bashar Al-Rawi & Fadi Aloul
0.00/0.00	c Solving /tmp/evaluation/430612-1177996932/instance-430612-1177996932.opb ......
0.00/0.05	c done parsing opb.
0.00/0.05	o 23
0.69/0.79	o 13
0.79/0.87	o 7
1.00/1.08	o 5
1.49/1.55	o 3
1.69/1.78	o 2
1.69/1.78	o 2
1.69/1.78	s OPTIMUM FOUND
1.69/1.78	c Total Run Time					1.77573
1.69/1.78	v -x1 -x10 -x100 -x101 -x102 -x103 x104 -x105 -x106 x107 -x108 -x109 x11 -x110 -x111 x112 -x113 -x114 -x115 -x116 x117 -x118
1.69/1.78	v -x119 x12 -x120 -x121 x122 -x123 -x124 -x125 -x126 -x127 -x128 -x129 x13 -x130 -x131 x132 x133 x134 x135 -x136 x137 x138 x139
1.69/1.78	v x14 x140 -x141 x142 x143 x144 x145 -x146 x147 x148 x149 x15 x150 -x151 x152 x153 x154 x155 -x156 x157 -x158 -x159 x16 -x160 -x161
1.69/1.78	v -x162 -x163 -x164 -x165 -x166 -x167 -x168 -x169 -x17 -x170 -x171 -x172 -x173 -x174 -x175 -x176 x177 -x178 -x179 -x18 -x180
1.69/1.78	v -x181 x182 -x183 -x184 -x185 -x186 -x187 -x188 -x189 -x19 -x190 -x191 x192 -x193 -x194 -x195 -x196 -x197 -x198 -x199 x2 x20
1.69/1.78	v -x200 -x201 x202 -x203 -x204 -x205 -x206 x207 -x208 x209 x21 -x210 -x211 x212 -x213 x214 -x215 -x216 x217 -x218 x219 -x22 -x220
1.69/1.78	v -x221 -x222 -x223 -x224 -x225 -x226 x227 -x228 x229 x23 -x230 -x231 x232 x233 -x234 -x235 -x236 x237 x238 -x239 -x24 -x240
1.69/1.78	v -x241 x242 x243 -x244 -x245 -x246 -x247 -x248 -x249 x25 -x250 -x251 x252 x253 -x254 -x255 -x256 x257 -x258 x259 x26 -x260 -x261
1.69/1.78	v x262 -x263 x264 -x265 -x266 -x267 -x268 -x269 x27 -x270 -x271 x272 -x273 x274 -x275 -x276 x277 -x278 x279 x28 -x280 -x29 -x3
1.69/1.78	v x30 x31 x32 x33 -x34 x35 x36 x37 -x38 x39 -x4 x40 -x41 x42 x43 x44 x45 -x46 x47 -x48 -x49 -x5 -x50 -x51 x52 -x53 -x54 -x55 -x56 x57
1.69/1.78	v -x58 x59 x6 -x60 -x61 x62 x63 -x64 -x65 -x66 x67 -x68 x69 x7 -x70 -x71 -x72 -x73 -x74 -x75 x76 -x77 x78 x79 x8 x80 x81 -x82 -x83 -x84
1.69/1.78	v -x85 x86 -x87 -x88 -x89 x9 -x90 x91 x92 x93 -x94 -x95 -x96 -x97 x98 -x99

Verifier Data (download as text)

OK	2

Conversion Script Data (download as text)

Linearizing /tmp/evaluation/430612-1177996932/instance-430612-1177996932.opb

Watcher Data (download as text)

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

command line: runsolver --timestamp -w ROOT/results/node55/watcher-430612-1177996932 -o ROOT/results/node55/solver-430612-1177996932 -C 1800 -W 3600 -M 1800 --output-limit 1,15 /tmp/evaluation/430612-1177996932/PBS4 /tmp/evaluation/430612-1177996932/instance-430612-1177996932.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: 0.92 0.98 0.99 3/64 16024
/proc/meminfo: memFree=1780740/2055920 swapFree=4184544/4192956
[pid=16024] ppid=16022 vsize=1456 CPUtime=0
/proc/16024/stat : 16024 (PBS4) R 16022 16024 15256 0 -1 4194304 149 0 0 0 0 0 0 0 18 0 1 0 247603232 1490944 132 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 134640335 0 0 4096 0 0 0 0 17 1 0 0
/proc/16024/statm: 364 132 87 219 0 141 0

[startup+0.0717389 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 16024
/proc/meminfo: memFree=1780740/2055920 swapFree=4184544/4192956
[pid=16024] ppid=16022 vsize=1708 CPUtime=0.06
/proc/16024/stat : 16024 (PBS4) R 16022 16024 15256 0 -1 4194304 268 0 0 0 6 0 0 0 18 0 1 0 247603232 1748992 251 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/16024/statm: 427 251 103 219 0 204 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 1708

[startup+0.101742 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 16024
/proc/meminfo: memFree=1780740/2055920 swapFree=4184544/4192956
[pid=16024] ppid=16022 vsize=1836 CPUtime=0.09
/proc/16024/stat : 16024 (PBS4) R 16022 16024 15256 0 -1 4194304 323 0 0 0 9 0 0 0 18 0 1 0 247603232 1880064 306 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/16024/statm: 459 306 103 219 0 236 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1836

[startup+0.30176 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 16024
/proc/meminfo: memFree=1780740/2055920 swapFree=4184544/4192956
[pid=16024] ppid=16022 vsize=3700 CPUtime=0.29
/proc/16024/stat : 16024 (PBS4) R 16022 16024 15256 0 -1 4194304 516 0 0 0 29 0 0 0 19 0 1 0 247603232 3788800 499 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/16024/statm: 925 499 103 219 0 702 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3700

[startup+0.701798 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 16024
/proc/meminfo: memFree=1780740/2055920 swapFree=4184544/4192956
[pid=16024] ppid=16022 vsize=3832 CPUtime=0.69
/proc/16024/stat : 16024 (PBS4) R 16022 16024 15256 0 -1 4194304 747 0 0 0 68 1 0 0 22 0 1 0 247603232 3923968 730 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/16024/statm: 958 730 103 219 0 735 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 3832

[startup+1.50187 s]
/proc/loadavg: 0.92 0.98 0.99 2/65 16025
/proc/meminfo: memFree=1777532/2055920 swapFree=4184544/4192956
[pid=16024] ppid=16022 vsize=6336 CPUtime=1.49
/proc/16024/stat : 16024 (PBS4) R 16022 16024 15256 0 -1 4194304 1131 0 0 0 146 3 0 0 25 0 1 0 247603232 6488064 1065 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/16024/statm: 1584 1065 104 219 0 1361 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 6336

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

[startup+1.70189 s]
/proc/loadavg: 0.92 0.98 0.99 2/65 16025
/proc/meminfo: memFree=1777532/2055920 swapFree=4184544/4192956
[pid=16024] ppid=16022 vsize=6468 CPUtime=1.69
/proc/16024/stat : 16024 (PBS4) R 16022 16024 15256 0 -1 4194304 1151 0 0 0 166 3 0 0 25 0 1 0 247603232 6623232 1085 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/16024/statm: 1617 1085 104 219 0 1394 0
Current children cumulated CPU time (s) 1.69
Current children cumulated vsize (KiB) 6468

Child status: 0
Real time (s): 1.78401
CPU time (s): 1.78173
CPU user time (s): 1.74273
CPU system time (s): 0.038994
CPU usage (%): 99.8721
Max. virtual memory (cumulated for all children) (KiB): 6468

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.74273
system time used= 0.038994
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1166
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= 3

runsolver used 0.001999 second user time and 0.009998 second system time

The end

Launcher Data (download as text)

Begin job on node55 on Tue May  1 05:22:12 UTC 2007

IDJOB= 430612
IDBENCH= 47993
IDSOLVER= 157
FILE ID= node55/430612-1177996932

PBS_JOBID= 4728222

Free space on /tmp= 66563 MiB

SOLVER NAME= PBS4 2007-03-23
BENCH NAME= HOME/pub/bench/PB07/normalized-PB07/OPT-SMALLINT-NLC/submittedPB07/roussel/factor-mod-B/factor-mod-size=5-P0=3-P1=19-P2=2-P3=19-P4=17-P5=13-P6=37-P7=5-B.opb
COMMAND LINE= /tmp/evaluation/430612-1177996932/PBS4 /tmp/evaluation/430612-1177996932/instance-430612-1177996932.opb            
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node55/convwatcher-430612-1177996932 -o ROOT/results/node55/conversion-430612-1177996932 -C 600 -M 1800 PBconversionToLinear /tmp/evaluation/430612-1177996932/instance-430612-1177996932.opb
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node55/watcher-430612-1177996932 -o ROOT/results/node55/solver-430612-1177996932 -C 1800 -W 3600 -M 1800 --output-limit 1,15  /tmp/evaluation/430612-1177996932/PBS4 /tmp/evaluation/430612-1177996932/instance-430612-1177996932.opb            

META MD5SUM SOLVER= b6c24e28fef9e1efa7891be58ea9e46f
MD5SUM BENCH=  ade4038b6c8c483ca1d44b3698e37050

RANDOM SEED= 230785947

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node55.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		: 3000.216
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		: 3000.216
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:       1781084 kB
Buffers:         40928 kB
Cached:         147580 kB
SwapCached:       2436 kB
Active:          36856 kB
Inactive:       162020 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1781084 kB
SwapTotal:     4192956 kB
SwapFree:      4184544 kB
Dirty:            1188 kB
Writeback:           0 kB
Mapped:          16784 kB
Slab:            61932 kB
Committed_AS:  1804920 kB
PageTables:       1380 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= 66563 MiB

End job on node55 on Tue May  1 05:22:14 UTC 2007