Trace number 50077

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
Pueblo 1.3OPT1 26.6819 26.6936

General information on the benchmark

Namenormalized-PB06/OPT-SMALLINT/submitted-PB06/
manquiho/market-split/normalized-opt-market-split_4_30_2.opb
MD5SUM031b0f629913e7cd5c934f00ec1a1885
Bench CategoryOPT-SMALLINT (optimisation, small integers)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark1
Best CPU time to get the best result obtained on this benchmark26.6819
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 1
Optimality of the best value was proved YES
Number of variables94
Total number of constraints8
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 constraints8
Minimum length of a constraint44
Maximum length of a constraint46
Number of terms in the objective function 64
Biggest coefficient in the objective function 128
Number of bits for the biggest coefficient in the objective function 8
Sum of the numbers in the objective function 2040
Number of bits of the sum of numbers in the objective function 11
Biggest number in a constraint 808
Number of bits of the biggest number in a constraint 10
Biggest sum of numbers in a constraint 2934
Number of bits of the biggest sum of numbers12
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	c Pueblo version 1.4 (September 2005)
0.00	c Developed @ University of Michigan, Ann Arbor, MI
0.00	c  by Hossein Sheini
0.00	c starting to Solve
0.00	c #variables read: 94 - #constraints read: 9
0.01	o 535
0.01	o 525
0.01	o 509
0.01	o 505
0.01	o 482
0.01	o 480
0.01	o 476
0.01	o 463
0.01	o 455
0.01	o 451
0.01	o 449
0.01	o 346
0.01	o 342
0.01	o 332
0.01	o 330
0.01	o 328
0.02	o 320
0.02	o 274
0.02	o 171
0.02	o 169
0.02	o 140
0.02	o 130
0.02	o 128
0.02	o 127
0.02	o 124
0.02	o 58
0.02	o 50
0.03	o 29
0.03	o 26
0.06	o 20
0.06	o 18
0.08	o 11
0.08	o 9
0.14	o 7
0.14	o 5
0.14	o 3
2.23	o 1
26.69	c optimum objective found = 1
26.69	c total time              : 26.67 s
26.69	s OPTIMUM FOUND
26.69	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
26.69	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
26.69	v -x55 -x56 -x57 -x58 -x59 -x60 -x61 -x62 -x63 -x64 x65 -x66 x67 x68 x70 -x71 x72 -x73 x74 -x75 -x76 -x77 -x78 -x79 -x80 x81 -x82
26.69	v x83 -x84 -x85 x86 -x87 x88 x89 x90 x91 x92 -x93 x94 -x69

Verifier Data (download as text)

OK	1

Watcher Data (download as text)

Enforcing CPU limit (will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime (will send SIGXCPU) limit: 1830 seconds
Enforcing Stack size limit: 67108864 bytes

runsolver version 3.0.1 (c) roussel@cril.univ-artois.fr

Enforcing memory limit (will send SIGKILL): 1843200 Kb
Enforcing VSIZE limit: 1887436800 bytes
command line: runsolver --timestamp -w ROOT/results/node86/watcher-50077-1149919191 -o ROOT/results/node86/solver-50077-1149919191 -C 1800 -M 1800 -S 64 ROOT/solvers/PB/PB06final/user8/Pueblo13 ROOT/tmp/node86/50077-1149919191/instance-50077-1149919191.opb 

Current StackSize limit: 67108864 bytes

/proc/loadavg: 0.43 0.82 0.86 3/68 9461
/proc/meminfo: memFree=1402192/2055892 swapFree=4084792/4096564
[pid=9461] ppid=9459 vsize=2544 CPUtime=0
/proc/9461/stat : 9461 (Pueblo13) D 9459 9461 9415 0 -1 4194304 239 0 0 0 0 0 0 0 18 0 1 0 257558280 2605056 211 18446744073709551615 134512640 134579064 4294956672 18446744073709551615 4294960144 0 2147483391 4096 0 18446744072099941670 0 0 17 1 0 0
/proc/9461/statm: 636 211 185 16 0 76 0

[startup+10.0028 s]
/proc/loadavg: 0.52 0.82 0.86 2/68 9461
/proc/meminfo: memFree=1401944/2055892 swapFree=4084792/4096564
[pid=9461] ppid=9459 vsize=2580 CPUtime=9.99
/proc/9461/stat : 9461 (Pueblo13) R 9459 9461 9415 0 -1 4194304 283 0 0 0 987 12 0 0 25 0 1 0 257558280 2641920 255 18446744073709551615 134512640 134579064 4294956672 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/9461/statm: 645 255 205 16 0 85 0
Current children cumulated CPU time (s) 9.99
Current children cumulated vsize (Kb) 2580

[startup+20.008 s]
/proc/loadavg: 0.59 0.83 0.86 2/68 9461
/proc/meminfo: memFree=1401944/2055892 swapFree=4084792/4096564
[pid=9461] ppid=9459 vsize=2580 CPUtime=19.99
/proc/9461/stat : 9461 (Pueblo13) R 9459 9461 9415 0 -1 4194304 284 0 0 0 1973 26 0 0 25 0 1 0 257558280 2641920 256 18446744073709551615 134512640 134579064 4294956672 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/9461/statm: 645 256 205 16 0 85 0
Current children cumulated CPU time (s) 19.99
Current children cumulated vsize (Kb) 2580

Child status: 30
Real time (s): 26.6936
CPU time (s): 26.6819
CPU user time (s): 26.334
CPU system time (s): 0.347947
CPU usage (%): 99.9565
Max. virtual memory (cumulated for all children) (Kb): 2580
The end

Launcher Data (download as text)

Begin job on node86 on Sat Jun 10 05:59:51 UTC 2006


FILE ID= 50077-1149919191

PBS_JOBID= 385420

BENCH NAME= HOME/pub/bench/PB06/final/normalized-PB06/OPT-SMALLINT/submitted-PB06/manquiho/market-split/normalized-opt-market-split_4_30_2.opb
COMMAND LINE= ROOT/solvers/PB/PB06final/user8/Pueblo13 ROOT/tmp/node86/50077-1149919191/instance-50077-1149919191.opb
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node86/watcher-50077-1149919191 -o ROOT/results/node86/solver-50077-1149919191 -C 1800 -M 1800 -S 64  ROOT/solvers/PB/PB06final/user8/Pueblo13 ROOT/tmp/node86/50077-1149919191/instance-50077-1149919191.opb

MD5SUM SOLVER= b45add8200bccdf53727749bff226bd1
MD5SUM BENCH=  031b0f629913e7cd5c934f00ec1a1885

RANDOM SEED= 447966736


/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		: 3000.214
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	: 6006.19
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		: 3000.214
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	: 5999.42
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055892 kB
MemFree:       1402464 kB
Buffers:         43172 kB
Cached:         533736 kB
SwapCached:       2928 kB
Active:          76564 kB
Inactive:       508972 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055892 kB
LowFree:       1402464 kB
SwapTotal:     4096564 kB
SwapFree:      4084792 kB
Dirty:             124 kB
Writeback:           0 kB
Mapped:          15160 kB
Slab:            54504 kB
Committed_AS:   632984 kB
PageTables:       1300 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264388 kB
VmallocChunk: 536606243 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB


End job on node86 on Sat Jun 10 06:00:17 UTC 2006