Trace number 41411

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
PBS 4.1LOPT164393 163.906 163.959

General information on the benchmark

Namenormalized-PB06/OPT-SMALLINT/reduced/mps-v2-20-10/
MIPLIB/miplib/normalized-reduced-mps-v2-20-10-pipex.opb
MD5SUMed5b5ce3af44efa2d285a6206b4187fd
Bench CategoryOPT-SMALLINT (optimisation, small integers)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark164393
Best CPU time to get the best result obtained on this benchmark0.118981
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 164393
Optimality of the best value was proved YES
Number of variables48
Total number of constraints25
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)16
Number of constraints which are nor clauses,nor cardinality constraints9
Minimum length of a constraint3
Maximum length of a constraint16
Number of terms in the objective function 48
Biggest coefficient in the objective function 22495
Number of bits for the biggest coefficient in the objective function 15
Sum of the numbers in the objective function 524314
Number of bits of the sum of numbers in the objective function 20
Biggest number in a constraint 22495
Number of bits of the biggest number in a constraint 15
Biggest sum of numbers in a constraint 524314
Number of bits of the biggest sum of numbers20
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 PBS v4 by Bashar Al-Rawi & Fadi Aloul
0.00	c Solving ROOT/tmp/node23/41411-1149346297/instance-41411-1149346297.opb ......
0.03	c done parsing opb.
0.03	o 181282
0.04	o 180356
0.04	o 178087
0.05	o 175071
0.06	o 172252
0.10	o 172207
0.23	o 172201
0.26	o 171380
0.33	o 171082
0.33	o 169772
0.40	o 168883
5.31	o 167732
30.89	o 167296
56.44	o 167133
58.72	o 165841
63.56	o 165330
66.91	o 164393
163.95	o 164393
163.95	s OPTIMUM FOUND
163.95	c Total Run Time					163.901
163.95	v x1 -x10 x11 -x12 x13 -x14 -x15 -x16 -x17 -x18 -x19 x2 -x20 -x21 -x22 x23 x24 -x25 -x26 -x27 x28 -x29 -x3 x30 x31 x32 -x33 -x34 x35
163.95	v x36 x37 x38 -x39 -x4 -x40 x41 x42 -x43 -x44 -x45 -x46 -x47 -x48 -x5 -x6 -x7 -x8 -x9

Verifier Data (download as text)

OK	164393

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
Enforcing memory limit (will send SIGKILL): 1843200 Kb
Enforcing VSIZE limit: 1887436800 bytes
runsolver version 3.0.0 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node23/watcher-41411-1149346297 -o ROOT/results/node23/solver-41411-1149346297 -C 1800 -M 1800 -S 64 ROOT/solvers/PB/PB06final/user11/PBS4L ROOT/tmp/node23/41411-1149346297/instance-41411-1149346297.opb 469892465 

Current StackSize limit: 67108864 bytes

/proc/loadavg: 0.77 0.95 0.95 3/64 25934
/proc/meminfo: memFree=1753360/2055920 swapFree=4180884/4192956
[pid=25934] ppid=25932 vsize=1400 CPUtime=0
/proc/25934/stat : 25934 (PBS4L) R 25932 25934 25888 0 -1 4194304 132 0 0 0 0 0 0 0 18 0 1 0 200293386 1433600 116 18446744073709551615 134512640 135466232 4294956672 18446744073709551615 135084712 0 0 4096 0 0 0 0 17 1 0 0
/proc/25934/statm: 350 116 99 232 0 115 0

[startup+10.0022 s]
/proc/loadavg: 0.80 0.95 0.95 2/64 25934
/proc/meminfo: memFree=1747112/2055920 swapFree=4180884/4192956
[pid=25934] ppid=25932 vsize=7704 CPUtime=9.99
/proc/25934/stat : 25934 (PBS4L) R 25932 25934 25888 0 -1 4194304 1835 0 0 0 994 5 0 0 25 0 1 0 200293386 7888896 1672 18446744073709551615 134512640 135466232 4294956672 18446744073709551615 134551979 0 0 4096 0 0 0 0 17 1 0 0
/proc/25934/statm: 1926 1672 107 232 0 1691 0
Current children cumulated CPU time (s) 9.99
Current children cumulated vsize (Kb) 7704

[startup+20.0084 s]
/proc/loadavg: 0.83 0.95 0.95 2/64 25934
/proc/meminfo: memFree=1744680/2055920 swapFree=4180884/4192956
[pid=25934] ppid=25932 vsize=13528 CPUtime=19.99
/proc/25934/stat : 25934 (PBS4L) R 25932 25934 25888 0 -1 4194304 2634 0 0 0 1992 7 0 0 25 0 1 0 200293386 13852672 2278 18446744073709551615 134512640 135466232 4294956672 18446744073709551615 135140097 0 0 4096 0 0 0 0 17 1 0 0
/proc/25934/statm: 3382 2278 107 232 0 3147 0
Current children cumulated CPU time (s) 19.99
Current children cumulated vsize (Kb) 13528

[startup+30.0145 s]
/proc/loadavg: 0.86 0.95 0.95 2/64 25934
/proc/meminfo: memFree=1743016/2055920 swapFree=4180884/4192956
[pid=25934] ppid=25932 vsize=13864 CPUtime=29.99
/proc/25934/stat : 25934 (PBS4L) R 25932 25934 25888 0 -1 4194304 3066 0 0 0 2990 9 0 0 25 0 1 0 200293386 14196736 2710 18446744073709551615 134512640 135466232 4294956672 18446744073709551615 134558830 0 0 4096 0 0 0 0 17 1 0 0
/proc/25934/statm: 3466 2710 107 232 0 3231 0
Current children cumulated CPU time (s) 29.99
Current children cumulated vsize (Kb) 13864

[startup+40.0206 s]
/proc/loadavg: 0.88 0.95 0.95 2/64 25934
/proc/meminfo: memFree=1741224/2055920 swapFree=4180884/4192956
[pid=25934] ppid=25932 vsize=14524 CPUtime=40
/proc/25934/stat : 25934 (PBS4L) R 25932 25934 25888 0 -1 4194304 3495 0 0 0 3989 11 0 0 25 0 1 0 200293386 14872576 3139 18446744073709551615 134512640 135466232 4294956672 18446744073709551615 134558830 0 0 4096 0 0 0 0 17 1 0 0
/proc/25934/statm: 3631 3139 107 232 0 3396 0
Current children cumulated CPU time (s) 40
Current children cumulated vsize (Kb) 14524

[startup+50.0278 s]
/proc/loadavg: 0.90 0.95 0.95 2/64 25934
/proc/meminfo: memFree=1739496/2055920 swapFree=4180884/4192956
[pid=25934] ppid=25932 vsize=25176 CPUtime=50
/proc/25934/stat : 25934 (PBS4L) R 25932 25934 25888 0 -1 4194304 4321 0 0 0 4987 13 0 0 25 0 1 0 200293386 25780224 3580 18446744073709551615 134512640 135466232 4294956672 18446744073709551615 134558830 0 0 4096 0 0 0 0 17 1 0 0
/proc/25934/statm: 6294 3580 107 232 0 6059 0
Current children cumulated CPU time (s) 50
Current children cumulated vsize (Kb) 25176

[startup+60.0329 s]
/proc/loadavg: 0.91 0.95 0.95 2/64 25934
/proc/meminfo: memFree=1738216/2055920 swapFree=4180884/4192956
[pid=25934] ppid=25932 vsize=25468 CPUtime=60.01
/proc/25934/stat : 25934 (PBS4L) R 25932 25934 25888 0 -1 4194304 4632 0 0 0 5986 15 0 0 25 0 1 0 200293386 26079232 3891 18446744073709551615 134512640 135466232 4294956672 18446744073709551615 134558830 0 0 4096 0 0 0 0 17 1 0 0
/proc/25934/statm: 6367 3891 107 232 0 6132 0
Current children cumulated CPU time (s) 60.01
Current children cumulated vsize (Kb) 25468

[startup+70.0391 s]
/proc/loadavg: 0.93 0.95 0.95 2/64 25934
/proc/meminfo: memFree=1737448/2055920 swapFree=4180884/4192956
[pid=25934] ppid=25932 vsize=25924 CPUtime=70.01
/proc/25934/stat : 25934 (PBS4L) R 25932 25934 25888 0 -1 4194304 4819 0 0 0 6985 16 0 0 25 0 1 0 200293386 26546176 4078 18446744073709551615 134512640 135466232 4294956672 18446744073709551615 134558830 0 0 4096 0 0 0 0 17 1 0 0
/proc/25934/statm: 6481 4078 107 232 0 6246 0
Current children cumulated CPU time (s) 70.01
Current children cumulated vsize (Kb) 25924

[startup+80.0452 s]
/proc/loadavg: 0.94 0.95 0.95 2/64 25934
/proc/meminfo: memFree=1736552/2055920 swapFree=4180884/4192956
[pid=25934] ppid=25932 vsize=26072 CPUtime=80.01
/proc/25934/stat : 25934 (PBS4L) R 25932 25934 25888 0 -1 4194304 5038 0 0 0 7984 17 0 0 25 0 1 0 200293386 26697728 4297 18446744073709551615 134512640 135466232 4294956672 18446744073709551615 134558877 0 0 4096 0 0 0 0 17 1 0 0
/proc/25934/statm: 6518 4297 107 232 0 6283 0
Current children cumulated CPU time (s) 80.01
Current children cumulated vsize (Kb) 26072

[startup+90.0513 s]
/proc/loadavg: 0.95 0.95 0.95 2/64 25934
/proc/meminfo: memFree=1735592/2055920 swapFree=4180884/4192956
[pid=25934] ppid=25932 vsize=26364 CPUtime=90.02
/proc/25934/stat : 25934 (PBS4L) R 25932 25934 25888 0 -1 4194304 5285 0 0 0 8983 19 0 0 25 0 1 0 200293386 26996736 4544 18446744073709551615 134512640 135466232 4294956672 18446744073709551615 134558872 0 0 4096 0 0 0 0 17 1 0 0
/proc/25934/statm: 6591 4544 107 232 0 6356 0
Current children cumulated CPU time (s) 90.02
Current children cumulated vsize (Kb) 26364

[startup+100.057 s]
/proc/loadavg: 0.95 0.96 0.95 2/64 25934
/proc/meminfo: memFree=1734696/2055920 swapFree=4180884/4192956
[pid=25934] ppid=25932 vsize=26500 CPUtime=100.02
/proc/25934/stat : 25934 (PBS4L) R 25932 25934 25888 0 -1 4194304 5511 0 0 0 9982 20 0 0 25 0 1 0 200293386 27136000 4770 18446744073709551615 134512640 135466232 4294956672 18446744073709551615 135140097 0 0 4096 0 0 0 0 17 1 0 0
/proc/25934/statm: 6625 4770 107 232 0 6390 0
Current children cumulated CPU time (s) 100.02
Current children cumulated vsize (Kb) 26500

[startup+110.065 s]
/proc/loadavg: 0.96 0.96 0.95 2/64 25934
/proc/meminfo: memFree=1733480/2055920 swapFree=4180884/4192956
[pid=25934] ppid=25932 vsize=26632 CPUtime=110.02
/proc/25934/stat : 25934 (PBS4L) R 25932 25934 25888 0 -1 4194304 5807 0 0 0 10981 21 0 0 25 0 1 0 200293386 27271168 5066 18446744073709551615 134512640 135466232 4294956672 18446744073709551615 134550784 0 0 4096 0 0 0 0 17 1 0 0
/proc/25934/statm: 6658 5066 107 232 0 6423 0
Current children cumulated CPU time (s) 110.02
Current children cumulated vsize (Kb) 26632

[startup+120.07 s]
/proc/loadavg: 0.97 0.96 0.95 2/64 25934
/proc/meminfo: memFree=1732456/2055920 swapFree=4180884/4192956
[pid=25934] ppid=25932 vsize=26956 CPUtime=120.03
/proc/25934/stat : 25934 (PBS4L) R 25932 25934 25888 0 -1 4194304 6054 0 0 0 11980 23 0 0 25 0 1 0 200293386 27602944 5313 18446744073709551615 134512640 135466232 4294956672 18446744073709551615 134558830 0 0 4096 0 0 0 0 17 1 0 0
/proc/25934/statm: 6739 5313 107 232 0 6504 0
Current children cumulated CPU time (s) 120.03
Current children cumulated vsize (Kb) 26956

[startup+130.076 s]
/proc/loadavg: 0.97 0.96 0.95 2/64 25934
/proc/meminfo: memFree=1731368/2055920 swapFree=4180884/4192956
[pid=25934] ppid=25932 vsize=27256 CPUtime=130.02
/proc/25934/stat : 25934 (PBS4L) R 25932 25934 25888 0 -1 4194304 6357 0 0 0 12978 24 0 0 25 0 1 0 200293386 27910144 5583 18446744073709551615 134512640 135466232 4294956672 18446744073709551615 134558830 0 0 4096 0 0 0 0 17 1 0 0
/proc/25934/statm: 6814 5583 107 232 0 6579 0
Current children cumulated CPU time (s) 130.02
Current children cumulated vsize (Kb) 27256

[startup+140.082 s]
/proc/loadavg: 0.98 0.96 0.95 2/64 25934
/proc/meminfo: memFree=1730408/2055920 swapFree=4180884/4192956
[pid=25934] ppid=25932 vsize=30460 CPUtime=140.03
/proc/25934/stat : 25934 (PBS4L) R 25932 25934 25888 0 -1 4194304 7384 0 0 0 13977 26 0 0 25 0 1 0 200293386 31191040 5841 18446744073709551615 134512640 135466232 4294956672 18446744073709551615 134551979 0 0 4096 0 0 0 0 17 1 0 0
/proc/25934/statm: 7615 5841 107 232 0 7380 0
Current children cumulated CPU time (s) 140.03
Current children cumulated vsize (Kb) 30460

[startup+150.088 s]
/proc/loadavg: 0.98 0.96 0.95 2/64 25934
/proc/meminfo: memFree=1729448/2055920 swapFree=4180884/4192956
[pid=25934] ppid=25932 vsize=31144 CPUtime=150.03
/proc/25934/stat : 25934 (PBS4L) R 25932 25934 25888 0 -1 4194304 7629 0 0 0 14975 28 0 0 25 0 1 0 200293386 31891456 6086 18446744073709551615 134512640 135466232 4294956672 18446744073709551615 134558785 0 0 4096 0 0 0 0 17 1 0 0
/proc/25934/statm: 7786 6086 107 232 0 7551 0
Current children cumulated CPU time (s) 150.03
Current children cumulated vsize (Kb) 31144

[startup+160.094 s]
/proc/loadavg: 0.98 0.96 0.95 2/64 25934
/proc/meminfo: memFree=1727784/2055920 swapFree=4180884/4192956
[pid=25934] ppid=25932 vsize=32644 CPUtime=160.04
/proc/25934/stat : 25934 (PBS4L) R 25932 25934 25888 0 -1 4194304 8066 0 0 0 15973 31 0 0 25 0 1 0 200293386 33427456 6490 18446744073709551615 134512640 135466232 4294956672 18446744073709551615 134558866 0 0 4096 0 0 0 0 17 1 0 0
/proc/25934/statm: 8161 6490 107 232 0 7926 0
Current children cumulated CPU time (s) 160.04
Current children cumulated vsize (Kb) 32644

Child status: 0
Real time (s): 163.959
CPU time (s): 163.906
CPU user time (s): 163.586
CPU system time (s): 0.319951
CPU usage (%): 99.9678
Max. virtual memory (cumulated for all children) (Kb): 32644

Launcher Data (download as text)

Begin job on node23 on Sat Jun  3 14:51:37 UTC 2006


FILE ID= 41411-1149346297

PBS_JOBID= 310708

BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/OPT-SMALLINT/reduced/mps-v2-20-10/MIPLIB/miplib/normalized-reduced-mps-v2-20-10-pipex.opb
COMMAND LINE= ROOT/solvers/PB/PB06final/user11/PBS4L ROOT/tmp/node23/41411-1149346297/instance-41411-1149346297.opb 469892465
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node23/watcher-41411-1149346297 -o ROOT/results/node23/solver-41411-1149346297 -C 1800 -M 1800 -S 64  ROOT/solvers/PB/PB06final/user11/PBS4L ROOT/tmp/node23/41411-1149346297/instance-41411-1149346297.opb 469892465

MD5SUM SOLVER= ab46593c31a6a47b9d9920387a00d332
MD5SUM BENCH=  ed5b5ce3af44efa2d285a6206b4187fd

RANDOM SEED= 469892465


/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		: 3000.213
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	: 5931.00
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		: 3000.213
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:       1753568 kB
Buffers:          9296 kB
Cached:         233248 kB
SwapCached:       3412 kB
Active:          45928 kB
Inactive:       205016 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1753568 kB
SwapTotal:     4192956 kB
SwapFree:      4180884 kB
Dirty:             312 kB
Writeback:           0 kB
Mapped:          14696 kB
Slab:            37512 kB
Committed_AS:   362428 kB
PageTables:       1424 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB


End job on node23 on Sat Jun  3 14:54:21 UTC 2006