Trace number 351710

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) 0.359944 0.36121

General information on the benchmark

Namenormalized-PB06/OPT-SMALLINT/reduced/mps-v2-20-10/
MIPLIB/miplib2003/normalized-reduced-mps-v2-20-10-pp08aCUTS.opb
MD5SUM4a4829ccfb158b9e23ea953e29870120
Bench CategoryOPT-SMALLINT (optimisation, small integers)
Best result obtained on this benchmarkSAT
Best value of the objective obtained on this benchmark69
Best CPU time to get the best result obtained on this benchmark1782.74
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 69
Optimality of the best value was proved NO
Number of variables4600
Total number of constraints310
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 constraints310
Minimum length of a constraint17
Maximum length of a constraint147
Number of terms in the objective function 3424
Biggest coefficient in the objective function 3121
Number of bits for the biggest coefficient in the objective function 12
Sum of the numbers in the objective function 527152
Number of bits of the sum of numbers in the objective function 20
Biggest number in a constraint 262140
Number of bits of the biggest number in a constraint 18
Biggest sum of numbers in a constraint 527152
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)

0.00/0.00	c glpPB 0.2 (July 2006)
0.00/0.00	c An Application of GLPK 4.10 for PB Constraints
0.00/0.00	c Done @ University of Michigan, Ann Arbor, MI
0.00/0.00	c  by Hossein Sheini
0.29/0.35	c starting to Solve
0.29/0.35	Assertion failed: x <= ub; file glpmip2.c; line 239

Verifier Data (download as text)

ERROR: no interpretation found !

Conversion Script Data (download as text)

/tmp/evaluation/351710-1176610141/instance-351710-1176610141.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/node6/watcher-351710-1176610141 -o ROOT/results/node6/solver-351710-1176610141 -C 1800 -W 3600 -M 1800 --output-limit 1,15 glpPBv3 /tmp/evaluation/351710-1176610141/instance-351710-1176610141.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: 0.92 0.98 0.99 3/77 5872
/proc/meminfo: memFree=1488304/2055924 swapFree=4191880/4192956
[pid=5872] ppid=5870 vsize=2644 CPUtime=0
/proc/5872/stat : 5872 (glpPBv3) R 5870 5872 3786 0 -1 0 262 0 0 0 0 0 0 0 18 0 1 0 137051800 2707456 232 18446744073709551615 134512640 134678228 4294956704 18446744073709551615 2653911 0 0 4096 0 0 0 0 17 0 0 0
/proc/5872/statm: 661 232 192 40 0 76 0

[startup+0.0730039 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 5872
/proc/meminfo: memFree=1488304/2055924 swapFree=4191880/4192956
[pid=5872] ppid=5870 vsize=3448 CPUtime=0.07
/proc/5872/stat : 5872 (glpPBv3) R 5870 5872 3786 0 -1 0 460 0 0 0 7 0 0 0 18 0 1 0 137051800 3530752 430 18446744073709551615 134512640 134678228 4294956704 18446744073709551615 2356028 0 0 4096 0 0 0 0 17 0 0 0
/proc/5872/statm: 862 430 199 40 0 277 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 3448

[startup+0.102007 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 5872
/proc/meminfo: memFree=1488304/2055924 swapFree=4191880/4192956
[pid=5872] ppid=5870 vsize=5096 CPUtime=0.09
/proc/5872/stat : 5872 (glpPBv3) R 5870 5872 3786 0 -1 0 910 0 0 0 9 0 0 0 18 0 1 0 137051800 5218304 879 18446744073709551615 134512640 134678228 4294956704 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 0 0 0
/proc/5872/statm: 1274 879 221 40 0 689 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 5096

[startup+0.30103 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 5872
/proc/meminfo: memFree=1488304/2055924 swapFree=4191880/4192956
[pid=5872] ppid=5870 vsize=4948 CPUtime=0.29
/proc/5872/stat : 5872 (glpPBv3) R 5870 5872 3786 0 -1 0 934 0 0 0 29 0 0 0 19 0 1 0 137051800 5066752 855 18446744073709551615 134512640 134678228 4294956704 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 0 0 0
/proc/5872/statm: 1237 855 221 40 0 652 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 4948

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

Child status: 1
Real time (s): 0.36121
CPU time (s): 0.359944
CPU user time (s): 0.350946
CPU system time (s): 0.008998
CPU usage (%): 99.6495
Max. virtual memory (cumulated for all children) (KiB): 5096

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.350946
system time used= 0.008998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1413
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= 13
involuntary context switches= 8

runsolver used 0.002999 second user time and 0.005999 second system time

The end

Launcher Data (download as text)

Begin job on node6 on Sun Apr 15 04:09:01 UTC 2007

IDJOB= 351710
IDBENCH= 1792
IDSOLVER= 166
FILE ID= node6/351710-1176610141

PBS_JOBID= 4556826

Free space on /tmp= 66555 MiB

SOLVER NAME= glpPB 0.2
BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/OPT-SMALLINT/reduced/mps-v2-20-10/MIPLIB/miplib2003/normalized-reduced-mps-v2-20-10-pp08aCUTS.opb
COMMAND LINE= glpPBv3 /tmp/evaluation/351710-1176610141/instance-351710-1176610141.opb
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node6/convwatcher-351710-1176610141 -o ROOT/results/node6/conversion-351710-1176610141 -C 600 -M 1800 PBconversionToLinear /tmp/evaluation/351710-1176610141/instance-351710-1176610141.opb
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node6/watcher-351710-1176610141 -o ROOT/results/node6/solver-351710-1176610141 -C 1800 -W 3600 -M 1800 --output-limit 1,15  glpPBv3 /tmp/evaluation/351710-1176610141/instance-351710-1176610141.opb

META MD5SUM SOLVER= 9ebec3e8d890fdeefad01654ad9b68b7
MD5SUM BENCH=  4a4829ccfb158b9e23ea953e29870120

RANDOM SEED= 754666848

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node6.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		: 3000.232
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		: 3000.232
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:      2055924 kB
MemFree:       1488776 kB
Buffers:         89404 kB
Cached:         351848 kB
SwapCached:        408 kB
Active:         186688 kB
Inactive:       311524 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055924 kB
LowFree:       1488776 kB
SwapTotal:     4192956 kB
SwapFree:      4191880 kB
Dirty:            2508 kB
Writeback:           0 kB
Mapped:          72076 kB
Slab:            54552 kB
Committed_AS:  5723540 kB
PageTables:       1788 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= 66555 MiB

End job on node6 on Sun Apr 15 04:09:02 UTC 2007