Trace number 458617

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_v2 2007-03-23OPT164393 165.943 165.986

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)

0.00/0.00	c PBS v4 by Bashar Al-Rawi & Fadi Aloul
0.00/0.00	c Solving /tmp/evaluation/458617-1178638609/instance-458617-1178638609.opb ......
0.00/0.03	c done parsing opb.
0.00/0.03	o 181282
0.00/0.04	o 180356
0.00/0.04	o 178087
0.00/0.05	o 175071
0.05/0.06	o 172252
0.09/0.10	o 172207
0.19/0.23	o 172201
0.19/0.26	o 171380
0.30/0.32	o 171082
0.30/0.33	o 169772
0.30/0.39	o 168883
5.19/5.28	o 167732
31.19/31.29	o 167296
57.18/57.27	o 167133
59.47/59.58	o 165841
64.38/64.46	o 165330
67.77/67.85	o 164393
165.85/165.98	o 164393
165.85/165.98	s OPTIMUM FOUND
165.85/165.98	c Total Run Time					165.934
165.85/165.98	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
165.85/165.98	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

Conversion Script Data (download as text)

/tmp/evaluation/458617-1178638609/instance-458617-1178638609.opb is already a linear file

Watcher Data (download as text)

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

command line: runsolver --timestamp -w ROOT/results/node74/watcher-458617-1178638609 -o ROOT/results/node74/solver-458617-1178638609 -C 1800 -W 3600 -M 1800 --output-limit 1,15 PBS4_SAT07v2 /tmp/evaluation/458617-1178638609/instance-458617-1178638609.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: 0.94 1.10 1.08 3/66 23915
/proc/meminfo: memFree=1402056/2055920 swapFree=4183172/4192956
[pid=23915] ppid=23913 vsize=1320 CPUtime=0
/proc/23915/stat : 23915 (PBS4_SAT07v2) R 23913 23915 23769 0 -1 4194304 129 0 0 0 0 0 0 0 18 0 1 0 311775711 1351680 111 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/23915/statm: 330 111 90 219 0 107 0

[startup+0.0603179 s]
/proc/loadavg: 0.94 1.10 1.08 3/66 23915
/proc/meminfo: memFree=1402056/2055920 swapFree=4183172/4192956
[pid=23915] ppid=23913 vsize=1460 CPUtime=0.05
/proc/23915/stat : 23915 (PBS4_SAT07v2) R 23913 23915 23769 0 -1 4194304 201 0 0 0 5 0 0 0 18 0 1 0 311775711 1495040 183 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/23915/statm: 365 183 102 219 0 142 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 1460

[startup+0.101322 s]
/proc/loadavg: 0.94 1.10 1.08 3/66 23915
/proc/meminfo: memFree=1402056/2055920 swapFree=4183172/4192956
[pid=23915] ppid=23913 vsize=1716 CPUtime=0.09
/proc/23915/stat : 23915 (PBS4_SAT07v2) R 23913 23915 23769 0 -1 4194304 251 0 0 0 9 0 0 0 18 0 1 0 311775711 1757184 233 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/23915/statm: 429 233 102 219 0 206 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1716

[startup+0.301345 s]
/proc/loadavg: 0.94 1.10 1.08 3/66 23915
/proc/meminfo: memFree=1402056/2055920 swapFree=4183172/4192956
[pid=23915] ppid=23913 vsize=2556 CPUtime=0.3
/proc/23915/stat : 23915 (PBS4_SAT07v2) R 23913 23915 23769 0 -1 4194304 404 0 0 0 29 1 0 0 19 0 1 0 311775711 2617344 386 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/23915/statm: 639 386 102 219 0 416 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 2556

[startup+0.701391 s]
/proc/loadavg: 0.94 1.10 1.08 3/66 23915
/proc/meminfo: memFree=1402056/2055920 swapFree=4183172/4192956
[pid=23915] ppid=23913 vsize=3904 CPUtime=0.69
/proc/23915/stat : 23915 (PBS4_SAT07v2) R 23913 23915 23769 0 -1 4194304 659 0 0 0 68 1 0 0 22 0 1 0 311775711 3997696 592 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/23915/statm: 976 592 102 219 0 753 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 3904

[startup+1.50148 s]
/proc/loadavg: 0.94 1.10 1.08 2/67 23916
/proc/meminfo: memFree=1399744/2055920 swapFree=4183172/4192956
[pid=23915] ppid=23913 vsize=4176 CPUtime=1.5
/proc/23915/stat : 23915 (PBS4_SAT07v2) R 23913 23915 23769 0 -1 4194304 862 0 0 0 148 2 0 0 25 0 1 0 311775711 4276224 795 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/23915/statm: 1044 795 102 219 0 821 0
Current children cumulated CPU time (s) 1.5
Current children cumulated vsize (KiB) 4176

[startup+3.10167 s]
/proc/loadavg: 0.94 1.10 1.08 2/67 23916
/proc/meminfo: memFree=1398656/2055920 swapFree=4183172/4192956
[pid=23915] ppid=23913 vsize=6888 CPUtime=3.09
/proc/23915/stat : 23915 (PBS4_SAT07v2) R 23913 23915 23769 0 -1 4194304 1197 0 0 0 306 3 0 0 25 0 1 0 311775711 7053312 1033 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/23915/statm: 1722 1033 102 219 0 1499 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 6888

[startup+6.30104 s]
/proc/loadavg: 0.95 1.10 1.08 2/67 23916
/proc/meminfo: memFree=1397120/2055920 swapFree=4183172/4192956
[pid=23915] ppid=23913 vsize=7336 CPUtime=6.29
/proc/23915/stat : 23915 (PBS4_SAT07v2) R 23913 23915 23769 0 -1 4194304 1521 0 0 0 625 4 0 0 25 0 1 0 311775711 7512064 1357 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/23915/statm: 1834 1357 102 219 0 1611 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 7336

[startup+12.7028 s]
/proc/loadavg: 0.95 1.10 1.08 2/67 23916
/proc/meminfo: memFree=1394888/2055920 swapFree=4183172/4192956
[pid=23915] ppid=23913 vsize=12904 CPUtime=12.69
/proc/23915/stat : 23915 (PBS4_SAT07v2) R 23913 23915 23769 0 -1 4194304 2247 0 0 0 1263 6 0 0 25 0 1 0 311775711 13213696 1890 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/23915/statm: 3226 1890 102 219 0 3003 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 12904

[startup+25.5013 s]
/proc/loadavg: 0.96 1.09 1.08 2/67 23916
/proc/meminfo: memFree=1392328/2055920 swapFree=4183172/4192956
[pid=23915] ppid=23913 vsize=13672 CPUtime=25.48
/proc/23915/stat : 23915 (PBS4_SAT07v2) R 23913 23915 23769 0 -1 4194304 2865 0 0 0 2539 9 0 0 25 0 1 0 311775711 14000128 2508 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 134550311 0 0 4096 16384 0 0 0 17 1 0 0
/proc/23915/statm: 3418 2508 102 219 0 3195 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 13672

[startup+51.1012 s]
/proc/loadavg: 0.97 1.08 1.08 2/67 23916
/proc/meminfo: memFree=1388040/2055920 swapFree=4183172/4192956
[pid=23915] ppid=23913 vsize=25128 CPUtime=51.07
/proc/23915/stat : 23915 (PBS4_SAT07v2) R 23913 23915 23769 0 -1 4194304 4321 0 0 0 5092 15 0 0 25 0 1 0 311775711 25731072 3579 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/23915/statm: 6282 3579 102 219 0 6059 0
Current children cumulated CPU time (s) 51.07
Current children cumulated vsize (KiB) 25128

[startup+102.305 s]
/proc/loadavg: 0.99 1.07 1.07 2/67 23916
/proc/meminfo: memFree=1383184/2055920 swapFree=4183172/4192956
[pid=23915] ppid=23913 vsize=26452 CPUtime=102.27
/proc/23915/stat : 23915 (PBS4_SAT07v2) R 23913 23915 23769 0 -1 4194304 5531 0 0 0 10204 23 0 0 25 0 1 0 311775711 27086848 4789 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 134550311 0 0 4096 16384 0 0 0 17 1 0 0
/proc/23915/statm: 6613 4789 102 219 0 6390 0
Current children cumulated CPU time (s) 102.27
Current children cumulated vsize (KiB) 26452

[startup+162.301 s]
/proc/loadavg: 0.99 1.05 1.07 2/67 23916
/proc/meminfo: memFree=1376400/2055920 swapFree=4183172/4192956
[pid=23915] ppid=23913 vsize=32596 CPUtime=162.25
/proc/23915/stat : 23915 (PBS4_SAT07v2) R 23913 23915 23769 0 -1 4194304 8064 0 0 0 16192 33 0 0 25 0 1 0 311775711 33378304 6487 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 134550331 0 0 4096 16384 0 0 0 17 1 0 0
/proc/23915/statm: 8149 6487 102 219 0 7926 0
Current children cumulated CPU time (s) 162.25
Current children cumulated vsize (KiB) 32596

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

[startup+163.101 s]
/proc/loadavg: 0.99 1.05 1.07 2/67 23916
/proc/meminfo: memFree=1376336/2055920 swapFree=4183172/4192956
[pid=23915] ppid=23913 vsize=32596 CPUtime=163.05
/proc/23915/stat : 23915 (PBS4_SAT07v2) R 23913 23915 23769 0 -1 4194304 8073 0 0 0 16272 33 0 0 25 0 1 0 311775711 33378304 6496 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 134550311 0 0 4096 16384 0 0 0 17 1 0 0
/proc/23915/statm: 8149 6496 102 219 0 7926 0
Current children cumulated CPU time (s) 163.05
Current children cumulated vsize (KiB) 32596

[startup+164.701 s]
/proc/loadavg: 0.99 1.05 1.07 2/67 23916
/proc/meminfo: memFree=1376336/2055920 swapFree=4183172/4192956
[pid=23915] ppid=23913 vsize=32596 CPUtime=164.64
/proc/23915/stat : 23915 (PBS4_SAT07v2) R 23913 23915 23769 0 -1 4194304 8085 0 0 0 16431 33 0 0 25 0 1 0 311775711 33378304 6508 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/23915/statm: 8149 6508 102 219 0 7926 0
Current children cumulated CPU time (s) 164.64
Current children cumulated vsize (KiB) 32596

[startup+165.501 s]
/proc/loadavg: 0.99 1.05 1.07 2/67 23916
/proc/meminfo: memFree=1376272/2055920 swapFree=4183172/4192956
[pid=23915] ppid=23913 vsize=32596 CPUtime=165.44
/proc/23915/stat : 23915 (PBS4_SAT07v2) R 23913 23915 23769 0 -1 4194304 8090 0 0 0 16511 33 0 0 25 0 1 0 311775711 33378304 6513 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 134550311 0 0 4096 16384 0 0 0 17 1 0 0
/proc/23915/statm: 8149 6513 102 219 0 7926 0
Current children cumulated CPU time (s) 165.44
Current children cumulated vsize (KiB) 32596

[startup+165.901 s]
/proc/loadavg: 0.99 1.05 1.07 2/67 23916
/proc/meminfo: memFree=1376272/2055920 swapFree=4183172/4192956
[pid=23915] ppid=23913 vsize=32596 CPUtime=165.85
/proc/23915/stat : 23915 (PBS4_SAT07v2) R 23913 23915 23769 0 -1 4194304 8093 0 0 0 16551 34 0 0 25 0 1 0 311775711 33378304 6516 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/23915/statm: 8149 6516 102 219 0 7926 0
Current children cumulated CPU time (s) 165.85
Current children cumulated vsize (KiB) 32596

Child status: 0
Real time (s): 165.986
CPU time (s): 165.943
CPU user time (s): 165.596
CPU system time (s): 0.346947
CPU usage (%): 99.974
Max. virtual memory (cumulated for all children) (KiB): 32596

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 165.596
system time used= 0.346947
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 8101
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= 7
involuntary context switches= 207

runsolver used 0.115982 second user time and 0.353946 second system time

The end

Launcher Data (download as text)

Begin job on node74 on Tue May  8 15:36:49 UTC 2007

IDJOB= 458617
IDBENCH= 1733
IDSOLVER= 200
FILE ID= node74/458617-1178638609

PBS_JOBID= 5218349

Free space on /tmp= 103243 MiB

SOLVER NAME= PBS4_v2 2007-03-23
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= PBS4_SAT07v2 /tmp/evaluation/458617-1178638609/instance-458617-1178638609.opb
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node74/convwatcher-458617-1178638609 -o ROOT/results/node74/conversion-458617-1178638609 -C 600 -M 1800 PBconversionToLinear /tmp/evaluation/458617-1178638609/instance-458617-1178638609.opb
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node74/watcher-458617-1178638609 -o ROOT/results/node74/solver-458617-1178638609 -C 1800 -W 3600 -M 1800 --output-limit 1,15  PBS4_SAT07v2 /tmp/evaluation/458617-1178638609/instance-458617-1178638609.opb

META MD5SUM SOLVER= 18cd8c68a4d3bfb01f29079966475a33
MD5SUM BENCH=  ed5b5ce3af44efa2d285a6206b4187fd

RANDOM SEED= 353491235

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node74.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		: 3000.213
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	: 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		: 3000.213
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:       1402592 kB
Buffers:         33612 kB
Cached:         472016 kB
SwapCached:       2944 kB
Active:         182556 kB
Inactive:       370432 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1402592 kB
SwapTotal:     4192956 kB
SwapFree:      4183172 kB
Dirty:            2248 kB
Writeback:           0 kB
Mapped:          53548 kB
Slab:            86068 kB
Committed_AS:  6965636 kB
PageTables:       1576 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 103243 MiB

End job on node74 on Tue May  8 15:39:36 UTC 2007