Trace number 35748

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 20.0999 20.1124

General information on the benchmark

Namenormalized-PB06/OPT-BIGINT/mps-v2-20-10/ftp.netlib.org/
lp/data/normalized-mps-v2-20-10-25fv47.opb
MD5SUM352e6e4471b8236a210f84cf79d988ac
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 benchmark3.11552
Has Objective FunctionYES
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables47130
Total number of constraints820
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 constraints820
Minimum length of a constraint30
Maximum length of a constraint10200
Number of terms in the objective function 19170
Biggest coefficient in the objective function 536870912000000
Number of bits for the biggest coefficient in the objective function 49
Sum of the numbers in the objective function 10623608039212938
Number of bits of the sum of numbers in the objective function 54
Biggest number in a constraint 128285302811787264
Number of bits of the biggest number in a constraint 57
Biggest sum of numbers in a constraint 812950436219668362
Number of bits of the biggest sum of numbers60
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...
5.30	c Converting 1327 PB-constraints to clauses...
5.32	c   -- Unit propagations: ppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppp  -- Detecting intervals from adjacent constraints: #########################################################################################################################################################################################################################################################################################################################################################################################################################################################################################
20.10	c   -- Clauses(.)/Splits(s): s
20.10	s UNSATISFIABLE
20.10	c _______________________________________________________________________________
20.10	c 
20.10	c restarts              : 0
20.10	c conflicts             : 0              (0 /sec)
20.10	c decisions             : 0              (0 /sec)
20.10	c propagations          : 0              (0 /sec)
20.10	c inspects              : 0              (0 /sec)
20.10	c CPU time              : 20.037 s
20.10	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/node11/watcher-35748-1149309276 -o ROOT/results/node11/solver-35748-1149309276 -C 1800 -M 1800 -S 64 ROOT/solvers/PB/PB06final/user7/minisat+ ROOT/tmp/node11/35748-1149309276/instance-35748-1149309276.opb 

Current StackSize limit: 67108864 bytes

/proc/loadavg: 0.84 0.94 0.98 2/64 2790
/proc/meminfo: memFree=1539536/2055920 swapFree=4181380/4192956
[pid=2790] ppid=2788 vsize=1048 CPUtime=0
/proc/2790/stat : 2790 (minisat+) R 2788 2790 2744 0 -1 4194304 103 0 0 0 0 0 0 0 19 0 1 0 196590150 1073152 88 18446744073709551615 134512640 135395479 4294956672 18446744073709551615 135031278 0 0 4096 16386 0 0 0 17 1 0 0
/proc/2790/statm: 262 88 67 215 0 44 0

[startup+10.0021 s]
/proc/loadavg: 0.87 0.94 0.98 2/64 2790
/proc/meminfo: memFree=1506656/2055920 swapFree=4181380/4192956
[pid=2790] ppid=2788 vsize=35516 CPUtime=9.99
/proc/2790/stat : 2790 (minisat+) R 2788 2790 2744 0 -1 4194304 9343 0 0 0 994 5 0 0 25 0 1 0 196590150 36368384 8300 18446744073709551615 134512640 135395479 4294956672 18446744073709551615 134621669 0 0 4096 16386 0 0 0 17 1 0 0
/proc/2790/statm: 8879 8300 83 215 0 8661 0
Current children cumulated CPU time (s) 9.99
Current children cumulated vsize (Kb) 35516

[startup+20.0083 s]
/proc/loadavg: 0.89 0.94 0.98 2/64 2790
/proc/meminfo: memFree=1506848/2055920 swapFree=4181380/4192956
[pid=2790] ppid=2788 vsize=35516 CPUtime=19.99
/proc/2790/stat : 2790 (minisat+) R 2788 2790 2744 0 -1 4194304 9344 0 0 0 1994 5 0 0 25 0 1 0 196590150 36368384 8301 18446744073709551615 134512640 135395479 4294956672 18446744073709551615 134621764 0 0 4096 16386 0 0 0 17 1 0 0
/proc/2790/statm: 8879 8301 83 215 0 8661 0
Current children cumulated CPU time (s) 19.99
Current children cumulated vsize (Kb) 35516

Child status: 20
Real time (s): 20.1124
CPU time (s): 20.0999
CPU user time (s): 20.038
CPU system time (s): 0.06199
CPU usage (%): 99.9383
Max. virtual memory (cumulated for all children) (Kb): 35516

Launcher Data (download as text)

Begin job on node11 on Sat Jun  3 04:34:36 UTC 2006


FILE ID= 35748-1149309276

PBS_JOBID= 307825

BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/OPT-BIGINT/mps-v2-20-10/ftp.netlib.org/lp/data/normalized-mps-v2-20-10-25fv47.opb
COMMAND LINE= ROOT/solvers/PB/PB06final/user7/minisat+ ROOT/tmp/node11/35748-1149309276/instance-35748-1149309276.opb
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node11/watcher-35748-1149309276 -o ROOT/results/node11/solver-35748-1149309276 -C 1800 -M 1800 -S 64  ROOT/solvers/PB/PB06final/user7/minisat+ ROOT/tmp/node11/35748-1149309276/instance-35748-1149309276.opb

MD5SUM SOLVER= 490d1d4b9bbf010afe7f0af63a5a62db
MD5SUM BENCH=  352e6e4471b8236a210f84cf79d988ac

RANDOM SEED= 359592689


/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		: 3000.222
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	: 5931.00
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		: 3000.222
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:       1539744 kB
Buffers:         35308 kB
Cached:         406696 kB
SwapCached:       3260 kB
Active:         102436 kB
Inactive:       348264 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1539744 kB
SwapTotal:     4192956 kB
SwapFree:      4181380 kB
Dirty:             188 kB
Writeback:           0 kB
Mapped:          14740 kB
Slab:            51396 kB
Committed_AS:   352172 kB
PageTables:       1484 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB


End job on node11 on Sat Jun  3 04:34:56 UTC 2006