Trace number 1868708

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 NameAnswerobjCPU timeWall clock time
SCIPspx SCIP 1.1.0.7 with SoPLEX 1.4.1(24.4.2009)OPT62027 0.042993 0.0419041

General information on the benchmark

Namenormalized-PB06/OPT-SMALLINT/mps-v2-20-10/
MIPLIB/miplib/normalized-mps-v2-20-10-p0040.opb
MD5SUMab21eb5817d07a398a94670d7815d5fb
Bench CategoryOPT-SMALLINT (optimisation, small integers)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark62027
Best CPU time to get the best result obtained on this benchmark0.012997
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 62027
Optimality of the best value was proved YES
Number of variables40
Total number of constraints23
Number of constraints which are clauses10
Number of constraints which are cardinality constraints (but not clauses)10
Number of constraints which are nor clauses,nor cardinality constraints3
Minimum length of a constraint4
Maximum length of a constraint10
Number of terms in the objective function 40
Biggest coefficient in the objective function 8161
Number of bits for the biggest coefficient in the objective function 13
Sum of the numbers in the objective function 265332
Number of bits of the sum of numbers in the objective function 19
Biggest number in a constraint 8161
Number of bits of the biggest number in a constraint 13
Biggest sum of numbers in a constraint 265332
Number of bits of the biggest sum of numbers19
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 

0.00/0.01	c SCIP version 1.1.0.7
0.00/0.01	c LP-Solver SoPlex 1.4.1
0.00/0.01	c user parameter file <scip.set> not found - using default parameters
0.00/0.01	c read problem <HOME/instance-1868708-1245134027.opb>
0.00/0.01	c original problem has 40 variables (40 bin, 0 int, 0 impl, 0 cont) and 23 constraints
0.00/0.01	c start presolving problem
0.00/0.01	c presolving:
0.00/0.01	c (round 1) 0 del vars, 0 del conss, 0 chg bounds, 0 chg sides, 10 chg coeffs, 0 upgd conss, 0 impls, 10 clqs
0.00/0.01	c (round 2) 0 del vars, 10 del conss, 0 chg bounds, 0 chg sides, 10 chg coeffs, 3 upgd conss, 0 impls, 10 clqs
0.00/0.01	c (round 3) 10 del vars, 10 del conss, 0 chg bounds, 1 chg sides, 20 chg coeffs, 3 upgd conss, 0 impls, 10 clqs
0.00/0.01	c (round 4) 10 del vars, 10 del conss, 0 chg bounds, 11 chg sides, 20 chg coeffs, 3 upgd conss, 0 impls, 10 clqs
0.00/0.02	c (round 5) 10 del vars, 10 del conss, 0 chg bounds, 11 chg sides, 20 chg coeffs, 13 upgd conss, 0 impls, 10 clqs
0.00/0.02	c presolving (6 rounds):
0.00/0.02	c  10 deleted vars, 10 deleted constraints, 0 tightened bounds, 0 added holes, 11 changed sides, 20 changed coefficients
0.00/0.02	c  0 implications, 10 cliques
0.00/0.02	c presolved problem has 30 variables (30 bin, 0 int, 0 impl, 0 cont) and 13 constraints
0.00/0.02	c       3 constraints of type <knapsack>
0.00/0.02	c      10 constraints of type <setppc>
0.00/0.02	c transformed objective value is always integral (scale: 1)
0.00/0.02	c Presolving Time: 0.01
0.00/0.02	c OPT-LIN
0.00/0.02	c -----------------------------------------------------------------------------------------------
0.00/0.02	c # maximal memory usage in MB; reported memory usage is lower than real memory usage!
0.00/0.02	c # [type: real, range: [0,1.79769313486232e+308], default: 1e+20]
0.00/0.02	c limits/memory = c 1620
0.00/0.02	c # maximal time in seconds to run
0.00/0.02	c # [type: real, range: [0,1.79769313486232e+308], default: 1e+20]
0.00/0.02	c limits/time = c 1791
0.00/0.02	c # frequency for displaying node information lines
0.00/0.02	c # [type: int, range: [-1,2147483647], default: 100]
0.00/0.02	c display/freq = c 10000
0.00/0.02	c -----------------------------------------------------------------------------------------------
0.00/0.02	c start solving problem
0.00/0.02	c 
0.00/0.02	c  time | node  | left  |LP iter| mem |mdpt |frac |vars |cons |ccons|cols |rows |cuts |confs|strbr|  dualbound   | primalbound  |  gap   
0.00/0.02	c   0.0s|     1 |     0 |    23 | 211k|   0 |   2 |  30 |  13 |  13 |  30 |  13 |   0 |   0 |   0 | 6.182908e+04 |      --      |    Inf 
0.00/0.02	o 62210
0.00/0.02	c s 0.0s|     1 |     0 |    23 | 213k|   0 |   2 |  30 |  13 |  13 |  30 |  13 |   0 |   0 |   0 | 6.182908e+04 | 6.221000e+04 |   0.62%
0.00/0.02	c   0.0s|     1 |     0 |    29 | 216k|   0 |   6 |  30 |  13 |  13 |  30 |  14 |   1 |   0 |   0 | 6.198880e+04 | 6.221000e+04 |   0.36%
0.00/0.02	c   0.0s|     1 |     0 |    31 | 220k|   0 |   0 |  30 |  13 |  13 |  30 |  15 |   2 |   0 |   0 | 6.202700e+04 | 6.221000e+04 |   0.30%
0.00/0.03	o 62027
0.00/0.03	c * 0.0s|     1 |     0 |    31 | 221k|   0 |   - |  30 |  13 |  13 |  30 |  15 |   2 |   0 |   0 | 6.202700e+04 | 6.202700e+04 |   0.00%
0.00/0.03	c 
0.00/0.03	c SCIP Status        : problem is solved [optimal solution found]
0.00/0.03	c Solving Time (sec) : 0.01
0.00/0.03	c Solving Nodes      : 1
0.00/0.03	c Primal Bound       : +6.20270000000000e+04 (2 solutions)
0.00/0.03	c Dual Bound         : +6.20270000000000e+04
0.00/0.03	c Gap                : 0.00 %
0.00/0.03	c NODE         1
0.00/0.03	c DUAL BOUND   62027
0.00/0.03	c PRIMAL BOUND 62027
0.00/0.03	c GAP          0
0.00/0.03	s OPTIMUM FOUND
0.00/0.03	v -x40 -x39 x38 -x37 -x36 -x35 x34 -x33 -x32 -x31 -x30 x29 -x28 -x27 x26 -x25 -x24 -x23 x22 -x21 -x20 -x19 x18 -x17 -x16 x15 -x14 
0.00/0.03	v -x13 -x12 -x11 -x10 x9 -x8 -x7 x6 -x5 -x4 -x3 x2 -x1 
0.00/0.03	c SCIP Status        : problem is solved [optimal solution found]
0.00/0.03	c Solving Time       :       0.01
0.00/0.03	c Original Problem   :
0.00/0.03	c   Problem name     : HOME/instance-1868708-1245134027.opb
0.00/0.03	c   Variables        : 40 (40 binary, 0 integer, 0 implicit integer, 0 continuous)
0.00/0.03	c   Constraints      : 23 initial, 23 maximal
0.00/0.03	c Presolved Problem  :
0.00/0.03	c   Problem name     : t_HOME/instance-1868708-1245134027.opb
0.00/0.03	c   Variables        : 30 (30 binary, 0 integer, 0 implicit integer, 0 continuous)
0.00/0.03	c   Constraints      : 13 initial, 13 maximal
0.00/0.03	c Presolvers         :       Time  FixedVars   AggrVars   ChgTypes  ChgBounds   AddHoles    DelCons   ChgSides   ChgCoefs
0.00/0.03	c   trivial          :       0.00          0          0          0          0          0          0          0          0
0.00/0.03	c   dualfix          :       0.00          0          0          0          0          0          0          0          0
0.00/0.03	c   boundshift       :       0.00          0          0          0          0          0          0          0          0
0.00/0.03	c   inttobinary      :       0.00          0          0          0          0          0          0          0          0
0.00/0.03	c   implics          :       0.00          0          0          0          0          0          0          0          0
0.00/0.03	c   probing          :       0.00          0          0          0          0          0          0          0          0
0.00/0.03	c   knapsack         :       0.00          0          0          0          0          0          0          1         10
0.00/0.03	c   setppc           :       0.00          0          0          0          0          0          0          0          0
0.00/0.03	c   linear           :       0.01          0         10          0          0          0         10         10         10
0.00/0.03	c   root node        :          -          1          -          -          1          -          -          -          -
0.00/0.03	c Constraints        :     Number  #Separate #Propagate    #EnfoLP    #EnfoPS    Cutoffs    DomReds       Cuts      Conss   Children
0.00/0.03	c   integral         :          0          0          0          1          0          0          0          0          0          0
0.00/0.03	c   knapsack         :          3          3         62          1          0          0          0          2          0          0
0.00/0.03	c   setppc           :         10          3         62          1          0          0          0          0          0          0
0.00/0.03	c   countsols        :          0          0          0          1          0          0          0          0          0          0
0.00/0.03	c Constraint Timings :  TotalTime   Separate  Propagate     EnfoLP     EnfoPS
0.00/0.03	c   integral         :       0.00       0.00       0.00       0.00       0.00
0.00/0.03	c   knapsack         :       0.00       0.00       0.00       0.00       0.00
0.00/0.03	c   setppc           :       0.00       0.00       0.00       0.00       0.00
0.00/0.03	c   countsols        :       0.00       0.00       0.00       0.00       0.00
0.00/0.03	c Propagators        :       Time      Calls    Cutoffs    DomReds
0.00/0.03	c   rootredcost      :       0.00          0          0          0
0.00/0.03	c   pseudoobj        :       0.00          5          0          0
0.00/0.03	c Conflict Analysis  :       Time      Calls    Success  Conflicts   Literals    Reconvs ReconvLits   LP Iters
0.00/0.03	c   propagation      :       0.00          0          0          0        0.0          0        0.0          -
0.00/0.03	c   infeasible LP    :       0.00          0          0          0        0.0          0        0.0          0
0.00/0.03	c   bound exceed. LP :       0.00          0          0          0        0.0          0        0.0          0
0.00/0.03	c   strong branching :       0.00          0          0          0        0.0          0        0.0          0
0.00/0.03	c   pseudo solution  :       0.00          0          0          0        0.0          0        0.0          -
0.00/0.03	c   applied globally :          -          -          -          0        0.0          -          -          -
0.00/0.03	c   applied locally  :          -          -          -          0        0.0          -          -          -
0.00/0.03	c Separators         :       Time      Calls    Cutoffs    DomReds       Cuts      Conss
0.00/0.03	c   cut pool         :       0.00          2          -          -          4          -    (maximal pool size: 11)
0.00/0.03	c   redcost          :       0.00          3          0          1          0          0
0.00/0.03	c   impliedbounds    :       0.00          2          0          0          0          0
0.00/0.03	c   intobj           :       0.00          0          0          0          0          0
0.00/0.03	c   gomory           :       0.00          3          0          0          4          0
0.00/0.03	c   strongcg         :       0.00          3          0          0          4          0
0.00/0.03	c   cmir             :       0.00          3          0          0          2          0
0.00/0.03	c   flowcover        :       0.00          3          0          0          4          0
0.00/0.03	c   clique           :       0.00          3          0          0          0          0
0.00/0.03	c   zerohalf         :       0.00          0          0          0          0          0
0.00/0.03	c   mcf              :       0.00          1          0          0          0          0
0.00/0.03	c Pricers            :       Time      Calls       Vars
0.00/0.03	c   problem variables:       0.00          0          0
0.00/0.03	c Branching Rules    :       Time      Calls    Cutoffs    DomReds       Cuts      Conss   Children
0.00/0.03	c   pscost           :       0.00          0          0          0          0          0          0
0.00/0.03	c   inference        :       0.00          0          0          0          0          0          0
0.00/0.03	c   mostinf          :       0.00          0          0          0          0          0          0
0.00/0.03	c   leastinf         :       0.00          0          0          0          0          0          0
0.00/0.03	c   fullstrong       :       0.00          0          0          0          0          0          0
0.00/0.03	c   allfullstrong    :       0.00          0          0          0          0          0          0
0.00/0.03	c   random           :       0.00          0          0          0          0          0          0
0.00/0.03	c   relpscost        :       0.00          0          0          0          0          0          0
0.00/0.03	c Primal Heuristics  :       Time      Calls      Found
0.00/0.03	c   LP solutions     :       0.00          -          1
0.00/0.03	c   pseudo solutions :       0.00          -          0
0.00/0.03	c   simplerounding   :       0.00          0          0
0.00/0.03	c   rounding         :       0.00          2          0
0.00/0.03	c   shifting         :       0.00          2          1
0.00/0.03	c   intshifting      :       0.00          0          0
0.00/0.03	c   oneopt           :       0.00          1          0
0.00/0.03	c   fixandinfer      :       0.00          0          0
0.00/0.03	c   feaspump         :       0.00          0          0
0.00/0.03	c   coefdiving       :       0.00          0          0
0.00/0.03	c   pscostdiving     :       0.00          0          0
0.00/0.03	c   fracdiving       :       0.00          0          0
0.00/0.03	c   veclendiving     :       0.00          0          0
0.00/0.03	c   intdiving        :       0.00          0          0
0.00/0.03	c   actconsdiving    :       0.00          0          0
0.00/0.03	c   objpscostdiving  :       0.00          0          0
0.00/0.03	c   rootsoldiving    :       0.00          0          0
0.00/0.03	c   linesearchdiving :       0.00          0          0
0.00/0.03	c   guideddiving     :       0.00          0          0
0.00/0.03	c   octane           :       0.00          0          0
0.00/0.03	c   rens             :       0.00          0          0
0.00/0.03	c   rins             :       0.00          0          0
0.00/0.03	c   localbranching   :       0.00          0          0
0.00/0.03	c   mutation         :       0.00          0          0
0.00/0.03	c   crossover        :       0.00          0          0
0.00/0.03	c   dins             :       0.00          0          0
0.00/0.03	c LP                 :       Time      Calls Iterations  Iter/call   Iter/sec
0.00/0.03	c   primal LP        :       0.00          0          0       0.00          -
0.00/0.03	c   dual LP          :       0.00          3         31      10.33          -
0.00/0.03	c   barrier LP       :       0.00          0          0       0.00          -
0.00/0.03	c   diving/probing LP:       0.00          0          0       0.00          -
0.00/0.03	c   strong branching :       0.00          0          0       0.00          -
0.00/0.03	c     (at root node) :          -          0          0       0.00          -
0.00/0.03	c   conflict analysis:       0.00          0          0       0.00          -
0.00/0.03	c B&B Tree           :
0.00/0.03	c   number of runs   :          1
0.00/0.03	c   nodes            :          1
0.00/0.03	c   nodes (total)    :          1
0.00/0.03	c   nodes left       :          0
0.00/0.03	c   max depth        :          0
0.00/0.03	c   max depth (total):          0
0.00/0.03	c   backtracks       :          0 (0.0%)
0.00/0.03	c   delayed cutoffs  :          0
0.00/0.03	c   repropagations   :          0 (0 domain reductions, 0 cutoffs)
0.00/0.03	c   avg switch length:       2.00
0.00/0.03	c   switching time   :       0.00
0.00/0.03	c Solution           :
0.00/0.03	c   Solutions found  :          2 (2 improvements)
0.00/0.03	c   Primal Bound     : +6.20270000000000e+04   (in run 1, after 1 nodes, 0.01 seconds, depth 0, found by <relaxation>)
0.00/0.03	c   Dual Bound       : +6.20270000000000e+04
0.00/0.03	c   Gap              :       0.00 %
0.00/0.03	c   Root Dual Bound  : +6.20270000000000e+04
0.00/0.04	c Time complete: 0.03.

Verifier Data 

OK	62027

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1868708-1245134027/watcher-1868708-1245134027 -o /tmp/evaluation-result-1868708-1245134027/solver-1868708-1245134027 -C 1800 -W 2000 -M 1800 HOME/pbscip.linux.x86_64.gnu.opt-gcc42.spx -t 1800 -m 1800 -f HOME/instance-1868708-1245134027.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: 1.00 1.00 1.00 3/64 31630
/proc/meminfo: memFree=1329120/2055920 swapFree=4191896/4192956
[pid=31630] ppid=31628 vsize=4324 CPUtime=0
/proc/31630/stat : 31630 (pbscip.linux.x8) R 31628 31630 31414 0 -1 4194304 462 0 0 0 0 0 0 0 18 0 1 0 181003770 4427776 447 1992294400 4194304 7823515 548682068736 18446744073709551615 6883856 0 0 4096 0 0 0 0 17 1 0 0
/proc/31630/statm: 1081 448 286 886 0 191 0

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

Child status: 0
Real time (s): 0.0419041
CPU time (s): 0.042993
CPU user time (s): 0.024996
CPU system time (s): 0.017997
CPU usage (%): 102.599
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.024996
system time used= 0.017997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 3262
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= 2
involuntary context switches= 0

runsolver used 0.002999 second user time and 0.006998 second system time

The end

Launcher Data 

Begin job on node2 at 2009-06-16 08:33:47
IDJOB=1868708
IDBENCH=1867
IDSOLVER=683
FILE ID=node2/1868708-1245134027
PBS_JOBID= 9363701
Free space on /tmp= 66452 MiB

SOLVER NAME= SCIPspx SCIP 1.1.0.7 with SoPLEX 1.4.1(24.4.2009)
BENCH NAME= PB06//final/normalized-PB06/OPT-SMALLINT/mps-v2-20-10/MIPLIB/miplib/normalized-mps-v2-20-10-p0040.opb
COMMAND LINE= HOME/pbscip.linux.x86_64.gnu.opt-gcc42.spx -t TIMEOUT -m MEMLIMIT -f BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1868708-1245134027/watcher-1868708-1245134027 -o /tmp/evaluation-result-1868708-1245134027/solver-1868708-1245134027 -C 1800 -W 2000 -M 1800  HOME/pbscip.linux.x86_64.gnu.opt-gcc42.spx -t 1800 -m 1800 -f HOME/instance-1868708-1245134027.opb

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

MD5SUM BENCH= ab21eb5817d07a398a94670d7815d5fb
RANDOM SEED=1818338642

node2.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/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	: 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		: 3000.214
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	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1329600 kB
Buffers:         36908 kB
Cached:         611416 kB
SwapCached:        260 kB
Active:          77932 kB
Inactive:       583564 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1329600 kB
SwapTotal:     4192956 kB
SwapFree:      4191896 kB
Dirty:            9832 kB
Writeback:           0 kB
Mapped:          21724 kB
Slab:            50756 kB
Committed_AS:   148620 kB
PageTables:       1468 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= 66440 MiB
End job on node2 at 2009-06-16 08:33:47