Trace number 45338

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
PB-smodels 1.31UNSAT 3.3165 2.34822

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-bandm.opb
MD5SUMb002a5dc99ccd859f0d9410c5cb7a1b7
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 benchmark0.506922
Has Objective FunctionYES
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables14160
Total number of constraints305
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 constraints305
Minimum length of a constraint30
Maximum length of a constraint2100
Number of terms in the objective function 4710
Biggest coefficient in the objective function 6176
Number of bits for the biggest coefficient in the objective function 13
Sum of the numbers in the objective function 528047
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 528047
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 Running pbsmodels-v1.31
2.34	s UNSATISFIABLE

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 3.0.1 (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/node49/watcher-45338-1149645782 -o ROOT/results/node49/solver-45338-1149645782 -C 1800 -M 1800 -S 64 ROOT/solvers/PB/PB06final/user4/pbsmodels-v1.31/runpbsmodels ROOT/tmp/node49/45338-1149645782/instance-45338-1149645782.opb 699673277 ROOT/tmp/node49/45338-1149645782 

Current StackSize limit: 67108864 bytes

/proc/loadavg: 0.95 0.97 0.91 2/64 8317
/proc/meminfo: memFree=1820112/2055920 swapFree=4181428/4192956
[pid=8317] ppid=8315 vsize=5360 CPUtime=0
/proc/8317/stat : 8317 (runpbsmodels) S 8315 8317 8271 0 -1 4194304 286 0 0 0 0 0 0 0 18 0 1 0 230245363 5488640 234 18446744073709551615 4194304 4889804 548682069184 18446744073709551615 265841861444 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/8317/statm: 1340 234 195 169 0 51 0
[pid=8318] ppid=8317 vsize=12132 CPUtime=0
/proc/8318/stat : 8318 (pbsmodels-v1.31) R 8317 8317 8271 0 -1 4194304 277 0 0 0 0 0 0 0 20 0 1 0 230245363 12423168 243 18446744073709551615 4194304 4206940 548682069024 18446744073709551615 265841709793 0 0 4224 0 0 0 0 17 0 0 0
/proc/8318/statm: 3033 246 186 3 0 133 0

Child status: 0
Real time (s): 2.34822
CPU time (s): 3.3165
CPU user time (s): 3.2795
CPU system time (s): 0.036994
CPU usage (%): 141.235
Max. virtual memory (cumulated for all children) (Kb): 0
The end

Launcher Data (download as text)

Begin job on node49 on Wed Jun  7 02:03:02 UTC 2006


FILE ID= 45338-1149645782

PBS_JOBID= 323837

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-bandm.opb
COMMAND LINE= ROOT/solvers/PB/PB06final/user4/pbsmodels-v1.31/runpbsmodels ROOT/tmp/node49/45338-1149645782/instance-45338-1149645782.opb 699673277  ROOT/tmp/node49/45338-1149645782
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node49/watcher-45338-1149645782 -o ROOT/results/node49/solver-45338-1149645782 -C 1800 -M 1800 -S 64  ROOT/solvers/PB/PB06final/user4/pbsmodels-v1.31/runpbsmodels ROOT/tmp/node49/45338-1149645782/instance-45338-1149645782.opb 699673277  ROOT/tmp/node49/45338-1149645782

MD5SUM SOLVER= 95562bc622ddb1f976359072aec5ad24 7fcd858753252b26b88f3383e979819a c732bc4c3aeda9195daa74a308a1f78e b7e54d975d35ab28450b6de5c14d303e f7da3270b2cd5190fa0cd9af9b854ca4
MD5SUM BENCH=  b002a5dc99ccd859f0d9410c5cb7a1b7

RANDOM SEED= 699673277


/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		: 3000.216
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		: 3000.216
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:       1820384 kB
Buffers:         30876 kB
Cached:         143804 kB
SwapCached:       3412 kB
Active:          80264 kB
Inactive:       103336 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1820384 kB
SwapTotal:     4192956 kB
SwapFree:      4181428 kB
Dirty:             172 kB
Writeback:           0 kB
Mapped:          14880 kB
Slab:            37960 kB
Committed_AS:   430676 kB
PageTables:       1480 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB


End job on node49 on Wed Jun  7 02:03:05 UTC 2006