Trace number 350657

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
glpPB 0.2? (exit code) 8.44472 8.48505

General information on the benchmark

Namenormalized-PB06/OPT-SMALLINT/reduced/mps-v2-20-10/plato.asu.edu/
pub/milp/normalized-reduced-mps-v2-20-10-neos3.opb
MD5SUMe3cb0aa6fa78151ec6baa005375728ca
Bench CategoryOPT-SMALLINT (optimisation, small integers)
Best result obtained on this benchmarkSAT
Best value of the objective obtained on this benchmark5
Best CPU time to get the best result obtained on this benchmark1782.79
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 5
Optimality of the best value was proved NO
Number of variables42220
Total number of constraints1481
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)17
Number of constraints which are nor clauses,nor cardinality constraints1464
Minimum length of a constraint10
Maximum length of a constraint4780
Number of terms in the objective function 155
Biggest coefficient in the objective function 52429
Number of bits for the biggest coefficient in the objective function 16
Sum of the numbers in the objective function 524395
Number of bits of the sum of numbers in the objective function 20
Biggest number in a constraint 262144
Number of bits of the biggest number in a constraint 19
Biggest sum of numbers in a constraint 528063
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

Solver Data (download as text)

0.00/0.04	c glpPB 0.2 (July 2006)
0.00/0.04	c An Application of GLPK 4.10 for PB Constraints
0.00/0.04	c Done @ University of Michigan, Ann Arbor, MI
0.00/0.04	c  by Hossein Sheini
8.35/8.47	c starting to Solve
8.35/8.47	Assertion failed: x >= lb; file glpmip2.c; line 230

Verifier Data (download as text)

ERROR: no interpretation found !

Conversion Script Data (download as text)

/tmp/evaluation/350657-1176534880/instance-350657-1176534880.opb is already a linear file

Watcher Data (download as text)

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

command line: runsolver --timestamp -w ROOT/results/node12/watcher-350657-1176534880 -o ROOT/results/node12/solver-350657-1176534880 -C 1800 -W 3600 -M 1800 --output-limit 1,15 glpPBv3 /tmp/evaluation/350657-1176534880/instance-350657-1176534880.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: 0.73 0.96 0.98 3/77 16251
/proc/meminfo: memFree=1737848/2055920 swapFree=4191880/4192956
[pid=16251] ppid=16249 vsize=268 CPUtime=0
/proc/16251/stat : 16251 (glpPBv3) D 16249 16251 16177 0 -1 0 39 0 0 0 0 0 0 0 18 0 1 0 129525440 274432 23 18446744073709551615 134512640 134678228 4294956704 18446744073709551615 9696036 0 2147483391 4096 0 18446744072099781622 0 0 17 1 0 0
/proc/16251/statm: 67 23 18 40 0 2 0

[startup+0.0713981 s]
/proc/loadavg: 0.73 0.96 0.98 3/77 16251
/proc/meminfo: memFree=1737848/2055920 swapFree=4191880/4192956
[pid=16251] ppid=16249 vsize=3448 CPUtime=0.02
/proc/16251/stat : 16251 (glpPBv3) R 16249 16251 16177 0 -1 0 457 0 4 0 2 0 0 0 18 0 1 0 129525440 3530752 431 18446744073709551615 134512640 134678228 4294956704 18446744073709551615 10131067 0 0 4096 0 0 0 0 17 1 0 0
/proc/16251/statm: 862 432 199 40 0 277 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 3448

[startup+0.101398 s]
/proc/loadavg: 0.73 0.96 0.98 3/77 16251
/proc/meminfo: memFree=1737848/2055920 swapFree=4191880/4192956
[pid=16251] ppid=16249 vsize=4248 CPUtime=0.05
/proc/16251/stat : 16251 (glpPBv3) R 16249 16251 16177 0 -1 0 658 0 4 0 5 0 0 0 18 0 1 0 129525440 4349952 632 18446744073709551615 134512640 134678228 4294956704 18446744073709551615 10161879 0 0 4096 0 0 0 0 17 1 0 0
/proc/16251/statm: 1062 632 199 40 0 477 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 4248

[startup+0.301419 s]
/proc/loadavg: 0.73 0.96 0.98 3/77 16251
/proc/meminfo: memFree=1737848/2055920 swapFree=4191880/4192956
[pid=16251] ppid=16249 vsize=7576 CPUtime=0.25
/proc/16251/stat : 16251 (glpPBv3) R 16249 16251 16177 0 -1 0 1490 0 4 0 24 1 0 0 19 0 1 0 129525440 7757824 1464 18446744073709551615 134512640 134678228 4294956704 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/16251/statm: 1894 1464 199 40 0 1309 0
Current children cumulated CPU time (s) 0.25
Current children cumulated vsize (KiB) 7576

[startup+0.701458 s]
/proc/loadavg: 0.73 0.96 0.98 3/77 16251
/proc/meminfo: memFree=1737848/2055920 swapFree=4191880/4192956
[pid=16251] ppid=16249 vsize=18108 CPUtime=0.65
/proc/16251/stat : 16251 (glpPBv3) R 16249 16251 16177 0 -1 0 4131 0 4 0 63 2 0 0 23 0 1 0 129525440 18542592 4105 18446744073709551615 134512640 134678228 4294956704 18446744073709551615 10161879 0 0 4096 0 0 0 0 17 1 0 0
/proc/16251/statm: 4527 4107 201 40 0 3942 0
Current children cumulated CPU time (s) 0.65
Current children cumulated vsize (KiB) 18108

[startup+1.50154 s]
/proc/loadavg: 0.73 0.96 0.98 2/78 16252
/proc/meminfo: memFree=1712560/2055920 swapFree=4191880/4192956
[pid=16251] ppid=16249 vsize=26816 CPUtime=1.45
/proc/16251/stat : 16251 (glpPBv3) R 16249 16251 16177 0 -1 0 6503 0 4 0 142 3 0 0 25 0 1 0 129525440 27459584 6310 18446744073709551615 134512640 134678228 4294956704 18446744073709551615 134582906 0 0 4096 0 0 0 0 17 1 0 0
/proc/16251/statm: 6704 6310 221 40 0 6119 0
Current children cumulated CPU time (s) 1.45
Current children cumulated vsize (KiB) 26816

[startup+3.1017 s]
/proc/loadavg: 0.73 0.96 0.98 2/78 16252
/proc/meminfo: memFree=1712432/2055920 swapFree=4191880/4192956
[pid=16251] ppid=16249 vsize=26816 CPUtime=3.05
/proc/16251/stat : 16251 (glpPBv3) R 16249 16251 16177 0 -1 0 6503 0 4 0 302 3 0 0 25 0 1 0 129525440 27459584 6310 18446744073709551615 134512640 134678228 4294956704 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/16251/statm: 6704 6310 221 40 0 6119 0
Current children cumulated CPU time (s) 3.05
Current children cumulated vsize (KiB) 26816

[startup+6.30202 s]
/proc/loadavg: 0.75 0.96 0.98 2/78 16252
/proc/meminfo: memFree=1712304/2055920 swapFree=4191880/4192956
[pid=16251] ppid=16249 vsize=26816 CPUtime=6.25
/proc/16251/stat : 16251 (glpPBv3) R 16249 16251 16177 0 -1 0 6503 0 4 0 622 3 0 0 25 0 1 0 129525440 27459584 6310 18446744073709551615 134512640 134678228 4294956704 18446744073709551615 134582339 0 0 4096 0 0 0 0 17 1 0 0
/proc/16251/statm: 6704 6310 221 40 0 6119 0
Current children cumulated CPU time (s) 6.25
Current children cumulated vsize (KiB) 26816

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

[startup+7.1011 s]
/proc/loadavg: 0.75 0.96 0.98 2/78 16252
/proc/meminfo: memFree=1713520/2055920 swapFree=4191880/4192956
[pid=16251] ppid=16249 vsize=25612 CPUtime=7.05
/proc/16251/stat : 16251 (glpPBv3) R 16249 16251 16177 0 -1 0 6755 0 4 0 702 3 0 0 25 0 1 0 129525440 26226688 6009 18446744073709551615 134512640 134678228 4294956704 18446744073709551615 134582191 0 0 4096 0 0 0 0 17 1 0 0
/proc/16251/statm: 6403 6009 221 40 0 5818 0
Current children cumulated CPU time (s) 7.05
Current children cumulated vsize (KiB) 25612

[startup+7.90218 s]
/proc/loadavg: 0.75 0.96 0.98 2/78 16252
/proc/meminfo: memFree=1713528/2055920 swapFree=4191880/4192956
[pid=16251] ppid=16249 vsize=25612 CPUtime=7.86
/proc/16251/stat : 16251 (glpPBv3) R 16249 16251 16177 0 -1 0 6755 0 4 0 782 4 0 0 25 0 1 0 129525440 26226688 6009 18446744073709551615 134512640 134678228 4294956704 18446744073709551615 134643714 0 0 4096 0 0 0 0 17 1 0 0
/proc/16251/statm: 6403 6009 221 40 0 5818 0
Current children cumulated CPU time (s) 7.86
Current children cumulated vsize (KiB) 25612

[startup+8.30122 s]
/proc/loadavg: 0.75 0.96 0.98 2/78 16252
/proc/meminfo: memFree=1713528/2055920 swapFree=4191880/4192956
[pid=16251] ppid=16249 vsize=25612 CPUtime=8.26
/proc/16251/stat : 16251 (glpPBv3) R 16249 16251 16177 0 -1 0 6755 0 4 0 822 4 0 0 25 0 1 0 129525440 26226688 6009 18446744073709551615 134512640 134678228 4294956704 18446744073709551615 134589782 0 0 4096 0 0 0 0 17 1 0 0
/proc/16251/statm: 6403 6009 221 40 0 5818 0
Current children cumulated CPU time (s) 8.26
Current children cumulated vsize (KiB) 25612

[startup+8.40123 s]
/proc/loadavg: 0.75 0.96 0.98 2/78 16252
/proc/meminfo: memFree=1713528/2055920 swapFree=4191880/4192956
[pid=16251] ppid=16249 vsize=26072 CPUtime=8.35
/proc/16251/stat : 16251 (glpPBv3) R 16249 16251 16177 0 -1 0 8742 0 4 0 831 4 0 0 25 0 1 0 129525440 26697728 6124 18446744073709551615 134512640 134678228 4294956704 18446744073709551615 134569217 0 0 4096 0 0 0 0 17 1 0 0
/proc/16251/statm: 6518 6124 223 40 0 5933 0
Current children cumulated CPU time (s) 8.35
Current children cumulated vsize (KiB) 26072

Child status: 1
Real time (s): 8.48505
CPU time (s): 8.44472
CPU user time (s): 8.37973
CPU system time (s): 0.06499
CPU usage (%): 99.5246
Max. virtual memory (cumulated for all children) (KiB): 26816

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 8.37973
system time used= 0.06499
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 11001
page faults= 4
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 20
involuntary context switches= 174

runsolver used 0.009998 second user time and 0.025996 second system time

The end

Launcher Data (download as text)

Begin job on node12 on Sat Apr 14 07:14:41 UTC 2007

IDJOB= 350657
IDBENCH= 1572
IDSOLVER= 166
FILE ID= node12/350657-1176534880

PBS_JOBID= 4556736

Free space on /tmp= 66430 MiB

SOLVER NAME= glpPB 0.2
BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/OPT-SMALLINT/reduced/mps-v2-20-10/plato.asu.edu/pub/milp/normalized-reduced-mps-v2-20-10-neos3.opb
COMMAND LINE= glpPBv3 /tmp/evaluation/350657-1176534880/instance-350657-1176534880.opb
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node12/convwatcher-350657-1176534880 -o ROOT/results/node12/conversion-350657-1176534880 -C 600 -M 1800 PBconversionToLinear /tmp/evaluation/350657-1176534880/instance-350657-1176534880.opb
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node12/watcher-350657-1176534880 -o ROOT/results/node12/solver-350657-1176534880 -C 1800 -W 3600 -M 1800 --output-limit 1,15  glpPBv3 /tmp/evaluation/350657-1176534880/instance-350657-1176534880.opb

META MD5SUM SOLVER= 9ebec3e8d890fdeefad01654ad9b68b7
MD5SUM BENCH=  e3cb0aa6fa78151ec6baa005375728ca

RANDOM SEED= 412320521

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node12.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		: 3000.239
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		: 3000.239
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:       1738192 kB
Buffers:         18924 kB
Cached:         205000 kB
SwapCached:        408 kB
Active:          95312 kB
Inactive:       171880 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1738192 kB
SwapTotal:     4192956 kB
SwapFree:      4191880 kB
Dirty:            4160 kB
Writeback:           0 kB
Mapped:          60320 kB
Slab:            36016 kB
Committed_AS:  3994044 kB
PageTables:       1792 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= 66430 MiB

End job on node12 on Sat Apr 14 07:14:49 UTC 2007