Trace number 372400

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
bsolo 3.0.16OPT8908 0.054991 0.0585041

General information on the benchmark

Namenormalized-PB07/OPT-SMALLINT-LIN/submittedPB07/
poldner/PB/testset/normalized-11_22.opb
MD5SUM75c7e5778aa6d0e8c18984c9064c30c6
Bench CategoryOPT-SMALLINT-LIN (optimisation, small integers, linear constraints)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark8908
Best CPU time to get the best result obtained on this benchmark0.041993
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 8908
Optimality of the best value was proved YES
Number of variables253
Total number of constraints264
Number of constraints which are clauses242
Number of constraints which are cardinality constraints (but not clauses)22
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint2
Maximum length of a constraint11
Number of terms in the objective function 253
Biggest coefficient in the objective function 2437
Number of bits for the biggest coefficient in the objective function 12
Sum of the numbers in the objective function 125403
Number of bits of the sum of numbers in the objective function 17
Biggest number in a constraint 2437
Number of bits of the biggest number in a constraint 12
Biggest sum of numbers in a constraint 125403
Number of bits of the biggest sum of numbers17
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

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 bsolo beta version 3.0.16 - 04/04/2007 : 1458 GMT
0.00/0.00	c Developed by Vasco Manquinho IST/UTL - INESC-ID
0.00/0.00	c type "bsolo -h" for help
0.00/0.00	c Time Limit set via environment variable PBTIMEOUT to 1800
0.00/0.00	c Time Limit set to 1800
0.00/0.00	c Memory Limit set to 1800 MB
0.00/0.00	c Instance file /tmp/evaluation/372400-1177092904/instance-372400-1177092904.opb
0.00/0.00	c File size is 10053 bytes.
0.00/0.00	c Highest Coefficient sum: 125403
0.00/0.00	c Parsing was ok!!
0.00/0.00	c Total parsing time: 0.002 s
0.00/0.00	c Var: 253 Constr: 286 264/22/0 Lit: 968 Watch. Lit: 770
0.00/0.00	c Obj. Vars: 253 (100 % of total variables)
0.00/0.00	c Pre-processing Time: 0.004 s
0.00/0.01	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.00/0.01	c        0    253      286      968    3      770     894      0      0 0.00
0.00/0.01	c Initial Lower Bound: 8757
0.00/0.01	c Initial Path Cost: 0
0.00/0.01	o 12441	0.014
0.00/0.02	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.00/0.02	c        0    253      287     1221    4     1004    1400      1      0 0.01
0.00/0.02	o 8908	0.016 * 
0.03/0.05	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.03/0.05	c        0    253      288     1474    5     1222    1906      2      0 0.02
0.03/0.05	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
0.03/0.05	v 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
0.03/0.05	v -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
0.03/0.05	v -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
0.03/0.05	v x106 -x107 -x108 -x109 -x110 -x111 -x112 -x113 -x114 -x115 -x116 x117 -x118 -x119 -x120 -x121 -x122 -x123 -x124 -x125 -x126
0.03/0.05	v -x127 x128 -x129 -x130 -x131 -x132 -x133 -x134 -x135 -x136 -x137 -x138 x139 -x140 -x141 -x142 -x143 -x144 -x145 -x146 -x147
0.03/0.05	v -x148 -x149 x150 -x151 -x152 -x153 -x154 -x155 -x156 -x157 -x158 -x159 -x160 x161 -x162 -x163 -x164 -x165 -x166 -x167 -x168
0.03/0.05	v -x169 -x170 -x171 x172 -x173 -x174 -x175 -x176 -x177 -x178 -x179 -x180 -x181 -x182 -x183 -x184 -x185 x186 -x187 -x188 -x189
0.03/0.05	v -x190 -x191 -x192 -x193 -x194 -x195 -x196 x197 -x198 -x199 -x200 -x201 -x202 -x203 -x204 x205 -x206 -x207 -x208 -x209 -x210
0.03/0.05	v -x211 -x212 -x213 -x214 -x215 -x216 -x217 -x218 x219 -x220 -x221 -x222 -x223 -x224 -x225 -x226 x227 -x228 -x229 -x230 -x231
0.03/0.05	v -x232 -x233 -x234 -x235 -x236 -x237 x238 -x239 -x240 -x241 -x242 -x243 -x244 -x245 -x246 -x247 -x248 x249 -x250 -x251 x252
0.03/0.05	v -x253
0.03/0.05	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
0.03/0.05	c    2       18      0       30      323     1867     37    352 0.05
0.03/0.05	c Objective: 8908
0.03/0.05	s OPTIMUM FOUND
0.03/0.05	c Total time: 0.051 s

Verifier Data (download as text)

OK	8908

Watcher Data (download as text)

runsolver version 3.2.2 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node63/watcher-372400-1177092904 -o ROOT/results/node63/solver-372400-1177092904 -C 1800 -W 3600 -M 1800 --output-limit 1,15 bsolo3.0.16 -t1800 -m1800 /tmp/evaluation/372400-1177092904/instance-372400-1177092904.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: 1.00 1.00 1.00 2/64 15242
/proc/meminfo: memFree=1762212/2055920 swapFree=4182876/4192956
[pid=15242] ppid=15240 vsize=19560 CPUtime=0
/proc/15242/stat : 15242 (bsolo3.0.16) R 15240 15242 14183 0 -1 4194304 364 0 0 0 0 0 0 0 18 0 1 0 185280383 20029440 332 18446744073709551615 134512640 135841103 4294956640 18446744073709551615 3405435 0 0 4096 16384 0 0 0 17 1 0 0
/proc/15242/statm: 4890 332 280 324 0 3956 0

[startup+0.040622 s]
/proc/loadavg: 1.00 1.00 1.00 2/64 15242
/proc/meminfo: memFree=1762212/2055920 swapFree=4182876/4192956
[pid=15242] ppid=15240 vsize=5196 CPUtime=0.03
/proc/15242/stat : 15242 (bsolo3.0.16) R 15240 15242 14183 0 -1 4194304 1025 0 0 0 3 0 0 0 18 0 1 0 185280383 5320704 599 18446744073709551615 134512640 135841103 4294956640 18446744073709551615 135313648 0 0 4096 16384 0 0 0 17 1 0 0
/proc/15242/statm: 1299 599 392 324 0 368 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 5196

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

[startup+0.040622 s]
/proc/loadavg: 1.00 1.00 1.00 2/64 15242
/proc/meminfo: memFree=1762212/2055920 swapFree=4182876/4192956
[pid=15242] ppid=15240 vsize=5196 CPUtime=0.03
/proc/15242/stat : 15242 (bsolo3.0.16) R 15240 15242 14183 0 -1 4194304 1025 0 0 0 3 0 0 0 18 0 1 0 185280383 5320704 599 18446744073709551615 134512640 135841103 4294956640 18446744073709551615 135313648 0 0 4096 16384 0 0 0 17 1 0 0
/proc/15242/statm: 1299 599 392 324 0 368 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 5196

Child status: 0
Real time (s): 0.0585041
CPU time (s): 0.054991
CPU user time (s): 0.049992
CPU system time (s): 0.004999
CPU usage (%): 93.9952
Max. virtual memory (cumulated for all children) (KiB): 5196

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.049992
system time used= 0.004999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1361
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= 12
involuntary context switches= 23

runsolver used 0.003999 second user time and 0.005999 second system time

The end

Launcher Data (download as text)

Begin job on node63 on Fri Apr 20 18:15:05 UTC 2007

IDJOB= 372400
IDBENCH= 24969
IDSOLVER= 163
FILE ID= node63/372400-1177092904

PBS_JOBID= 4640330

Free space on /tmp= 66470 MiB

SOLVER NAME= bsolo 3.0.16
BENCH NAME= HOME/pub/bench/PB07/normalized-PB07/OPT-SMALLINT-LIN/submittedPB07/poldner/PB/testset/normalized-11_22.opb
COMMAND LINE= bsolo3.0.16 -t1800 -m1800 /tmp/evaluation/372400-1177092904/instance-372400-1177092904.opb            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node63/watcher-372400-1177092904 -o ROOT/results/node63/solver-372400-1177092904 -C 1800 -W 3600 -M 1800 --output-limit 1,15  bsolo3.0.16 -t1800 -m1800 /tmp/evaluation/372400-1177092904/instance-372400-1177092904.opb            

META MD5SUM SOLVER= b11bf0769a124f73ad50b0fdfcd50482
MD5SUM BENCH=  75c7e5778aa6d0e8c18984c9064c30c6

RANDOM SEED= 861084902

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node63.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		: 3000.232
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		: 3000.232
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:       1762684 kB
Buffers:         28964 kB
Cached:         194472 kB
SwapCached:       3752 kB
Active:          79968 kB
Inactive:       152984 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1762684 kB
SwapTotal:     4192956 kB
SwapFree:      4182876 kB
Dirty:            4400 kB
Writeback:           0 kB
Mapped:          15540 kB
Slab:            46344 kB
Committed_AS:  2099848 kB
PageTables:       1460 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= 66470 MiB

End job on node63 on Fri Apr 20 18:15:05 UTC 2007