Trace number 84985

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) 75.0586 75.0816

General information on the benchmark

Namenormalized-PB06/OPT-SMALLINT/reduced/mps-v2-20-10/ftp.netlib.org/
lp/data/normalized-reduced-mps-v2-20-10-israel.opb
MD5SUM916719a95a95b5989e5d4b5f3d786df3
Bench CategoryOPT-SMALLINT (optimisation, small integers)
Best result obtained on this benchmarkSAT
Best value of the objective obtained on this benchmark-36
Best CPU time to get the best result obtained on this benchmark1800.57
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function -36
Optimality of the best value was proved NO
Number of variables4260
Total number of constraints174
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 constraints174
Minimum length of a constraint30
Maximum length of a constraint3540
Number of terms in the objective function 2670
Biggest coefficient in the objective function 42742
Number of bits for the biggest coefficient in the objective function 16
Sum of the numbers in the objective function 526467
Number of bits of the sum of numbers in the objective function 20
Biggest number in a constraint 262137
Number of bits of the biggest number in a constraint 18
Biggest sum of numbers in a constraint 527037
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	c glpPB 0.2 (July 2006)
0.00	c An Application of GLPK 4.10 for PB Constraints
0.00	c Done @ University of Michigan, Ann Arbor, MI
0.00	c  by Hossein Sheini
75.07	c starting to Solve
75.07	Assertion failed: x >= lb; file glpmip2.c; line 230

Verifier Data (download as text)

ERROR: no interpretation found !

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 3.0.3 (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/node18/watcher-84985-1154164031 -o ROOT/results/node18/solver-84985-1154164031 -C 1800 -M 1800 -S 64 ROOT/solvers/PB/PB06final/user8/glpPBv3 ROOT/tmp/node18/84985-1154164031/instance-84985-1154164031.opb 

Current StackSize limit: 67108864 bytes

/proc/loadavg: 0.91 0.95 0.90 2/64 19712
/proc/meminfo: memFree=1695296/2055920 swapFree=4184088/4192956
[pid=19712] ppid=19710 vsize=2376 CPUtime=0
/proc/19712/stat : 19712 (glpPBv3) R 19710 19712 19663 0 -1 0 189 0 0 0 0 0 0 0 19 0 1 0 163263708 2433024 159 18446744073709551615 134512640 134678228 4294956672 18446744073709551615 4160552656 0 0 4096 0 0 0 0 17 1 0 0
/proc/19712/statm: 594 168 146 40 0 11 0

[startup+10.0029 s]
/proc/loadavg: 0.93 0.95 0.90 2/64 19712
/proc/meminfo: memFree=1688776/2055920 swapFree=4184088/4192956
[pid=19712] ppid=19710 vsize=8696 CPUtime=9.99
/proc/19712/stat : 19712 (glpPBv3) R 19710 19712 19663 0 -1 0 69568 0 0 0 969 30 0 0 25 0 1 0 163263708 8904704 1809 18446744073709551615 134512640 134678228 4294956672 18446744073709551615 134542153 0 0 4096 0 0 0 0 17 1 0 0
/proc/19712/statm: 2174 1809 227 40 0 1591 0
Current children cumulated CPU time (s) 9.99
Current children cumulated vsize (Kb) 8696

[startup+20.0089 s]
/proc/loadavg: 0.94 0.96 0.91 2/64 19712
/proc/meminfo: memFree=1688712/2055920 swapFree=4184088/4192956
[pid=19712] ppid=19710 vsize=8860 CPUtime=20
/proc/19712/stat : 19712 (glpPBv3) R 19710 19712 19663 0 -1 0 140218 0 0 0 1936 64 0 0 25 0 1 0 163263708 9072640 1850 18446744073709551615 134512640 134678228 4294956672 18446744073709551615 134543497 0 0 4096 0 0 0 0 17 1 0 0
/proc/19712/statm: 2215 1850 227 40 0 1632 0
Current children cumulated CPU time (s) 20
Current children cumulated vsize (Kb) 8860

[startup+30.0149 s]
/proc/loadavg: 0.95 0.96 0.91 2/64 19712
/proc/meminfo: memFree=1687368/2055920 swapFree=4184088/4192956
[pid=19712] ppid=19710 vsize=10420 CPUtime=30
/proc/19712/stat : 19712 (glpPBv3) R 19710 19712 19663 0 -1 0 211620 0 0 0 2906 94 0 0 25 0 1 0 163263708 10670080 2240 18446744073709551615 134512640 134678228 4294956672 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/19712/statm: 2605 2240 227 40 0 2022 0
Current children cumulated CPU time (s) 30
Current children cumulated vsize (Kb) 10420

[startup+40.0209 s]
/proc/loadavg: 0.95 0.96 0.91 2/64 19712
/proc/meminfo: memFree=1687368/2055920 swapFree=4184088/4192956
[pid=19712] ppid=19710 vsize=10420 CPUtime=40
/proc/19712/stat : 19712 (glpPBv3) R 19710 19712 19663 0 -1 0 275676 0 0 0 3876 124 0 0 25 0 1 0 163263708 10670080 2240 18446744073709551615 134512640 134678228 4294956672 18446744073709551615 134542321 0 0 4096 0 0 0 0 17 1 0 0
/proc/19712/statm: 2605 2240 227 40 0 2022 0
Current children cumulated CPU time (s) 40
Current children cumulated vsize (Kb) 10420

[startup+50.0269 s]
/proc/loadavg: 0.96 0.96 0.91 2/64 19712
/proc/meminfo: memFree=1687368/2055920 swapFree=4184088/4192956
[pid=19712] ppid=19710 vsize=10556 CPUtime=50
/proc/19712/stat : 19712 (glpPBv3) R 19710 19712 19663 0 -1 0 354244 0 0 0 4840 160 0 0 25 0 1 0 163263708 10809344 2242 18446744073709551615 134512640 134678228 4294956672 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/19712/statm: 2639 2242 227 40 0 2056 0
Current children cumulated CPU time (s) 50
Current children cumulated vsize (Kb) 10556

[startup+60.0328 s]
/proc/loadavg: 0.97 0.96 0.91 2/64 19712
/proc/meminfo: memFree=1688712/2055920 swapFree=4184088/4192956
[pid=19712] ppid=19710 vsize=8860 CPUtime=60.01
/proc/19712/stat : 19712 (glpPBv3) R 19710 19712 19663 0 -1 0 406021 0 0 0 5816 185 0 0 25 0 1 0 163263708 9072640 1850 18446744073709551615 134512640 134678228 4294956672 18446744073709551615 134542166 0 0 4096 0 0 0 0 17 1 0 0
/proc/19712/statm: 2215 1850 227 40 0 1632 0
Current children cumulated CPU time (s) 60.01
Current children cumulated vsize (Kb) 8860

[startup+70.0398 s]
/proc/loadavg: 0.97 0.96 0.91 2/64 19712
/proc/meminfo: memFree=1688712/2055920 swapFree=4184088/4192956
[pid=19712] ppid=19710 vsize=8860 CPUtime=70.02
/proc/19712/stat : 19712 (glpPBv3) R 19710 19712 19663 0 -1 0 459622 0 0 0 6792 210 0 0 25 0 1 0 163263708 9072640 1850 18446744073709551615 134512640 134678228 4294956672 18446744073709551615 134542140 0 0 4096 0 0 0 0 17 1 0 0
/proc/19712/statm: 2215 1850 227 40 0 1632 0
Current children cumulated CPU time (s) 70.02
Current children cumulated vsize (Kb) 8860

Child status: 1
Real time (s): 75.0816
CPU time (s): 75.0586
CPU user time (s): 72.8329
CPU system time (s): 2.22566
CPU usage (%): 99.9694
Max. virtual memory (cumulated for all children) (Kb): 10556
The end

Launcher Data (download as text)

Begin job on node18 on Sat Jul 29 09:07:11 UTC 2006


FILE ID= 84985-1154164031

PBS_JOBID= 892759

BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/OPT-SMALLINT/reduced/mps-v2-20-10/ftp.netlib.org/lp/data/normalized-reduced-mps-v2-20-10-israel.opb
COMMAND LINE= ROOT/solvers/PB/PB06final/user8/glpPBv3 ROOT/tmp/node18/84985-1154164031/instance-84985-1154164031.opb
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node18/watcher-84985-1154164031 -o ROOT/results/node18/solver-84985-1154164031 -C 1800 -M 1800 -S 64  ROOT/solvers/PB/PB06final/user8/glpPBv3 ROOT/tmp/node18/84985-1154164031/instance-84985-1154164031.opb

MD5SUM SOLVER= 29ce95346658d7502ba983059bfb8cff
MD5SUM BENCH=  916719a95a95b5989e5d4b5f3d786df3

RANDOM SEED= 298349802

TIMEOUT= 1800 seconds


/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		: 3000.236
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		: 3000.236
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:       1695504 kB
Buffers:         16800 kB
Cached:         266268 kB
SwapCached:       2600 kB
Active:          23432 kB
Inactive:       268180 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1695504 kB
SwapTotal:     4192956 kB
SwapFree:      4184088 kB
Dirty:             272 kB
Writeback:           0 kB
Mapped:          14556 kB
Slab:            54820 kB
Committed_AS:   670328 kB
PageTables:       1412 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB


End job on node18 on Sat Jul 29 09:08:26 UTC 2006