Trace number 85048

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) 80.8907 80.9127

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-bnl2.opb
MD5SUM4c72c91139ee79c29342b8f97e9b4cad
Bench CategoryOPT-SMALLINT (optimisation, small integers)
Best result obtained on this benchmarkUNSAT
Best value of the objective obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark44.9042
Has Objective FunctionYES
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables104670
Total number of constraints2262
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 constraints2262
Minimum length of a constraint30
Maximum length of a constraint2460
Number of terms in the objective function 50550
Biggest coefficient in the objective function 14942
Number of bits for the biggest coefficient in the objective function 14
Sum of the numbers in the objective function 568060
Number of bits of the sum of numbers in the objective function 20
Biggest number in a constraint 262145
Number of bits of the biggest number in a constraint 19
Biggest sum of numbers in a constraint 568060
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
80.90	c starting to Solve
80.90	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/node3/watcher-85048-1154164365 -o ROOT/results/node3/solver-85048-1154164365 -C 1800 -M 1800 -S 64 ROOT/solvers/PB/PB06final/user8/glpPBv3 ROOT/tmp/node3/85048-1154164365/instance-85048-1154164365.opb 

Current StackSize limit: 67108864 bytes

/proc/loadavg: 0.86 0.94 0.90 3/64 6443
/proc/meminfo: memFree=1440696/2055920 swapFree=4183252/4192956
[pid=6443] ppid=6441 vsize=2664 CPUtime=0
/proc/6443/stat : 6443 (glpPBv3) R 6441 6443 6394 0 -1 0 261 0 0 0 0 0 0 0 18 0 1 0 163298101 2727936 231 18446744073709551615 134512640 134678228 4294956688 18446744073709551615 11390679 0 0 4096 0 0 0 0 17 1 0 0
/proc/6443/statm: 666 231 192 40 0 83 0

[startup+10.0031 s]
/proc/loadavg: 0.88 0.94 0.90 2/64 6443
/proc/meminfo: memFree=1378424/2055920 swapFree=4183252/4192956
[pid=6443] ppid=6441 vsize=64528 CPUtime=10
/proc/6443/stat : 6443 (glpPBv3) R 6441 6443 6394 0 -1 0 17912 0 0 0 993 7 0 0 25 0 1 0 163298101 66076672 15753 18446744073709551615 134512640 134678228 4294956688 18446744073709551615 134582083 0 0 4096 0 0 0 0 17 1 0 0
/proc/6443/statm: 16132 15753 221 40 0 15549 0
Current children cumulated CPU time (s) 10
Current children cumulated vsize (Kb) 64528

[startup+20.009 s]
/proc/loadavg: 0.90 0.94 0.90 2/64 6443
/proc/meminfo: memFree=1381560/2055920 swapFree=4183252/4192956
[pid=6443] ppid=6441 vsize=61600 CPUtime=19.99
/proc/6443/stat : 6443 (glpPBv3) R 6441 6443 6394 0 -1 0 20816 0 0 0 1991 8 0 0 25 0 1 0 163298101 63078400 15021 18446744073709551615 134512640 134678228 4294956688 18446744073709551615 134587987 0 0 4096 0 0 0 0 17 1 0 0
/proc/6443/statm: 15400 15021 221 40 0 14817 0
Current children cumulated CPU time (s) 19.99
Current children cumulated vsize (Kb) 61600

[startup+30.0148 s]
/proc/loadavg: 0.91 0.94 0.90 2/64 6443
/proc/meminfo: memFree=1381624/2055920 swapFree=4183252/4192956
[pid=6443] ppid=6441 vsize=61600 CPUtime=30
/proc/6443/stat : 6443 (glpPBv3) R 6441 6443 6394 0 -1 0 22996 0 0 0 2990 10 0 0 25 0 1 0 163298101 63078400 15021 18446744073709551615 134512640 134678228 4294956688 18446744073709551615 134589874 0 0 4096 0 0 0 0 17 1 0 0
/proc/6443/statm: 15400 15021 221 40 0 14817 0
Current children cumulated CPU time (s) 30
Current children cumulated vsize (Kb) 61600

[startup+40.0206 s]
/proc/loadavg: 0.93 0.95 0.90 2/64 6443
/proc/meminfo: memFree=1381688/2055920 swapFree=4183252/4192956
[pid=6443] ppid=6441 vsize=61600 CPUtime=40.01
/proc/6443/stat : 6443 (glpPBv3) R 6441 6443 6394 0 -1 0 22996 0 0 0 3991 10 0 0 25 0 1 0 163298101 63078400 15021 18446744073709551615 134512640 134678228 4294956688 18446744073709551615 134587969 0 0 4096 0 0 0 0 17 1 0 0
/proc/6443/statm: 15400 15021 221 40 0 14817 0
Current children cumulated CPU time (s) 40.01
Current children cumulated vsize (Kb) 61600

[startup+50.0264 s]
/proc/loadavg: 0.94 0.95 0.91 2/64 6443
/proc/meminfo: memFree=1381688/2055920 swapFree=4183252/4192956
[pid=6443] ppid=6441 vsize=61600 CPUtime=50
/proc/6443/stat : 6443 (glpPBv3) R 6441 6443 6394 0 -1 0 25176 0 0 0 4989 11 0 0 25 0 1 0 163298101 63078400 15021 18446744073709551615 134512640 134678228 4294956688 18446744073709551615 134643323 0 0 4096 0 0 0 0 17 1 0 0
/proc/6443/statm: 15400 15021 221 40 0 14817 0
Current children cumulated CPU time (s) 50
Current children cumulated vsize (Kb) 61600

[startup+60.0323 s]
/proc/loadavg: 0.95 0.95 0.91 2/64 6443
/proc/meminfo: memFree=1381624/2055920 swapFree=4183252/4192956
[pid=6443] ppid=6441 vsize=61600 CPUtime=60.01
/proc/6443/stat : 6443 (glpPBv3) R 6441 6443 6394 0 -1 0 27356 0 0 0 5989 12 0 0 25 0 1 0 163298101 63078400 15021 18446744073709551615 134512640 134678228 4294956688 18446744073709551615 134589855 0 0 4096 0 0 0 0 17 1 0 0
/proc/6443/statm: 15400 15021 221 40 0 14817 0
Current children cumulated CPU time (s) 60.01
Current children cumulated vsize (Kb) 61600

[startup+70.0391 s]
/proc/loadavg: 0.95 0.95 0.91 2/64 6443
/proc/meminfo: memFree=1377528/2055920 swapFree=4183252/4192956
[pid=6443] ppid=6441 vsize=65544 CPUtime=70.02
/proc/6443/stat : 6443 (glpPBv3) R 6441 6443 6394 0 -1 0 98185 0 0 0 6956 46 0 0 25 0 1 0 163298101 67117056 16002 18446744073709551615 134512640 134678228 4294956688 18446744073709551615 134537636 0 0 4096 0 0 0 0 17 1 0 0
/proc/6443/statm: 16386 16002 227 40 0 15803 0
Current children cumulated CPU time (s) 70.02
Current children cumulated vsize (Kb) 65544

[startup+80.0449 s]
/proc/loadavg: 0.96 0.95 0.91 2/64 6443
/proc/meminfo: memFree=1377528/2055920 swapFree=4183252/4192956
[pid=6443] ppid=6441 vsize=65544 CPUtime=80.02
/proc/6443/stat : 6443 (glpPBv3) R 6441 6443 6394 0 -1 0 183763 0 0 0 7915 87 0 0 25 0 1 0 163298101 67117056 16002 18446744073709551615 134512640 134678228 4294956688 18446744073709551615 134534649 0 0 4096 0 0 0 0 17 1 0 0
/proc/6443/statm: 16386 16002 227 40 0 15803 0
Current children cumulated CPU time (s) 80.02
Current children cumulated vsize (Kb) 65544

Child status: 1
Real time (s): 80.9127
CPU time (s): 80.8907
CPU user time (s): 79.9908
CPU system time (s): 0.899863
CPU usage (%): 99.9728
Max. virtual memory (cumulated for all children) (Kb): 65544
The end

Launcher Data (download as text)

Begin job on node3 on Sat Jul 29 09:12:45 UTC 2006


FILE ID= 85048-1154164365

PBS_JOBID= 892822

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-bnl2.opb
COMMAND LINE= ROOT/solvers/PB/PB06final/user8/glpPBv3 ROOT/tmp/node3/85048-1154164365/instance-85048-1154164365.opb
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node3/watcher-85048-1154164365 -o ROOT/results/node3/solver-85048-1154164365 -C 1800 -M 1800 -S 64  ROOT/solvers/PB/PB06final/user8/glpPBv3 ROOT/tmp/node3/85048-1154164365/instance-85048-1154164365.opb

MD5SUM SOLVER= 29ce95346658d7502ba983059bfb8cff
MD5SUM BENCH=  4c72c91139ee79c29342b8f97e9b4cad

RANDOM SEED= 883335591

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		: 3000.231
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		: 3000.231
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:       1440968 kB
Buffers:         25136 kB
Cached:         529144 kB
SwapCached:       3524 kB
Active:          60532 kB
Inactive:       502304 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1440968 kB
SwapTotal:     4192956 kB
SwapFree:      4183252 kB
Dirty:             304 kB
Writeback:           0 kB
Mapped:          14504 kB
Slab:            38204 kB
Committed_AS:   673260 kB
PageTables:       1404 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB


End job on node3 on Sat Jul 29 09:14:06 UTC 2006