Trace number 35819

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
minisat+ 1.14UNSAT 21.6577 21.6674

General information on the benchmark

Namenormalized-PB06/OPT-BIGINT/mps-v2-20-10/ftp.netlib.org/
lp/data/normalized-mps-v2-20-10-beaconfd.opb
MD5SUM82f615abc3129d59c14793e11ecbb793
Bench CategoryOPT-BIGINT (optimisation, big 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 benchmark1.68174
Has Objective FunctionYES
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables7860
Total number of constraints173
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 constraints173
Minimum length of a constraint30
Maximum length of a constraint4620
Number of terms in the objective function 2880
Biggest coefficient in the objective function 58518929408000
Number of bits for the biggest coefficient in the objective function 46
Sum of the numbers in the objective function 540181257540309
Number of bits of the sum of numbers in the objective function 49
Biggest number in a constraint 58518929408000
Number of bits of the biggest number in a constraint 46
Biggest sum of numbers in a constraint 540181257540309
Number of bits of the biggest sum of numbers49
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 Parsing PB file...
2.39	c Converting 231 PB-constraints to clauses...
2.39	c   -- Unit propagations: ppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppp  -- Detecting intervals from adjacent constraints: ##################################################################################
21.66	c   -- Clauses(.)/Splits(s): (none)
21.66	c ---[ 222]---> BDD-cost:   85
21.66	s UNSATISFIABLE
21.66	c _______________________________________________________________________________
21.66	c 
21.66	c restarts              : 0
21.66	c conflicts             : 0              (0 /sec)
21.66	c decisions             : 0              (0 /sec)
21.66	c propagations          : 0              (0 /sec)
21.66	c inspects              : 0              (0 /sec)
21.66	c CPU time              : 21.6277 s
21.66	c _______________________________________________________________________________

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
Enforcing memory limit (will send SIGKILL): 1843200 Kb
Enforcing VSIZE limit: 1887436800 bytes
runsolver version 3.0.0 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node91/watcher-35819-1149312742 -o ROOT/results/node91/solver-35819-1149312742 -C 1800 -M 1800 -S 64 ROOT/solvers/PB/PB06final/user7/minisat+ ROOT/tmp/node91/35819-1149312742/instance-35819-1149312742.opb 

Current StackSize limit: 67108864 bytes

/proc/loadavg: 0.92 0.98 0.96 2/68 8586
/proc/meminfo: memFree=1545712/2055892 swapFree=4085372/4096564
[pid=8586] ppid=8584 vsize=1180 CPUtime=0
/proc/8586/stat : 8586 (minisat+) R 8584 8586 8540 0 -1 4194304 122 0 0 0 0 0 0 0 19 0 1 0 196913151 1208320 108 18446744073709551615 134512640 135395479 4294956672 18446744073709551615 135031278 0 0 4096 16386 0 0 0 17 1 0 0
/proc/8586/statm: 295 108 67 215 0 77 0

[startup+10.0031 s]
/proc/loadavg: 0.93 0.98 0.96 2/68 8586
/proc/meminfo: memFree=1532024/2055892 swapFree=4085372/4096564
[pid=8586] ppid=8584 vsize=14820 CPUtime=9.99
/proc/8586/stat : 8586 (minisat+) R 8584 8586 8540 0 -1 4194304 4308 0 0 0 997 2 0 0 25 0 1 0 196913151 15175680 3551 18446744073709551615 134512640 135395479 4294956672 18446744073709551615 134809962 0 0 4096 16386 0 0 0 17 1 0 0
/proc/8586/statm: 3705 3551 83 215 0 3487 0
Current children cumulated CPU time (s) 9.99
Current children cumulated vsize (Kb) 14820

[startup+20.0091 s]
/proc/loadavg: 0.94 0.98 0.96 2/68 8586
/proc/meminfo: memFree=1532224/2055892 swapFree=4085372/4096564
[pid=8586] ppid=8584 vsize=14820 CPUtime=19.99
/proc/8586/stat : 8586 (minisat+) R 8584 8586 8540 0 -1 4194304 4308 0 0 0 1997 2 0 0 25 0 1 0 196913151 15175680 3551 18446744073709551615 134512640 135395479 4294956672 18446744073709551615 134621712 0 0 4096 16386 0 0 0 17 1 0 0
/proc/8586/statm: 3705 3551 83 215 0 3487 0
Current children cumulated CPU time (s) 19.99
Current children cumulated vsize (Kb) 14820

Child status: 20
Real time (s): 21.6674
CPU time (s): 21.6577
CPU user time (s): 21.6277
CPU system time (s): 0.029995
CPU usage (%): 99.9551
Max. virtual memory (cumulated for all children) (Kb): 14820

Launcher Data (download as text)

Begin job on node91 on Sat Jun  3 05:32:22 UTC 2006


FILE ID= 35819-1149312742

PBS_JOBID= 308110

BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/OPT-BIGINT/mps-v2-20-10/ftp.netlib.org/lp/data/normalized-mps-v2-20-10-beaconfd.opb
COMMAND LINE= ROOT/solvers/PB/PB06final/user7/minisat+ ROOT/tmp/node91/35819-1149312742/instance-35819-1149312742.opb
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node91/watcher-35819-1149312742 -o ROOT/results/node91/solver-35819-1149312742 -C 1800 -M 1800 -S 64  ROOT/solvers/PB/PB06final/user7/minisat+ ROOT/tmp/node91/35819-1149312742/instance-35819-1149312742.opb

MD5SUM SOLVER= 490d1d4b9bbf010afe7f0af63a5a62db
MD5SUM BENCH=  82f615abc3129d59c14793e11ecbb793

RANDOM SEED= 581989054


/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		: 3000.279
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	: 6006.18
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		: 3000.279
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	: 5999.45
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055892 kB
MemFree:       1546112 kB
Buffers:         32972 kB
Cached:         405180 kB
SwapCached:       2352 kB
Active:          73108 kB
Inactive:       373668 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055892 kB
LowFree:       1546112 kB
SwapTotal:     4096564 kB
SwapFree:      4085372 kB
Dirty:             172 kB
Writeback:           0 kB
Mapped:          16588 kB
Slab:            49568 kB
Committed_AS:   399056 kB
PageTables:       1284 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264388 kB
VmallocChunk: 536606243 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB


End job on node91 on Sat Jun  3 05:32:44 UTC 2006