Trace number 362589

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
bsolo 3.0.16UNSAT 1.40479 1.40803

General information on the benchmark

Namenormalized-PB06/OPT-SMALLINT/reduced/mps-v2-20-10/plato.asu.edu/
pub/milp/normalized-reduced-mps-v2-20-10-neos12.opb
MD5SUMa0b6152dd8614459e798b375ad9ceb75
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 benchmark1.40978
Has Objective FunctionYES
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables22960
Total number of constraints8611
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 constraints8611
Minimum length of a constraint11
Maximum length of a constraint840
Number of terms in the objective function 13440
Biggest coefficient in the objective function 586
Number of bits for the biggest coefficient in the objective function 10
Sum of the numbers in the objective function 535808
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 535808
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 bsolo beta version 3.0.16 - 04/04/2007 : 1458 GMT
0.00/0.00	c Developed by Vasco Manquinho IST/UTL - INESC-ID
0.00/0.00	c type "bsolo -h" for help
0.00/0.00	c Time Limit set via environment variable PBTIMEOUT to 1800
0.00/0.00	c Time Limit set to 1800
0.00/0.00	c Memory Limit set to 1800 MB
0.00/0.00	c Instance file /tmp/evaluation/362589-1177015195/instance-362589-1177015195.opb
0.00/0.00	c File size is 2930933 bytes.
0.49/0.51	c Highest Coefficient sum: 535808
0.49/0.51	c Parsing was ok!!
0.49/0.51	c Total parsing time: 0.512 s
0.49/0.52	c Var: 22960 Constr: 9186 6273/728/2185 Lit: 278670 Watch. Lit: 37564
0.49/0.52	c Obj. Vars: 13440 (58.5366 % of total variables)
1.39/1.40	c CONFLICT DETECTED at PROBING!!!
1.39/1.40	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
1.39/1.40	c    0        0      0        0     9186   278670      0      0 1.40
1.39/1.40	s UNSATISFIABLE
1.39/1.40	c Total time: 1.401 s

Verifier Data (download as text)

ERROR: no interpretation found !

Watcher Data (download as text)

runsolver version 3.2.2 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node25/watcher-362589-1177015195 -o ROOT/results/node25/solver-362589-1177015195 -C 1800 -W 3600 -M 1800 --output-limit 1,15 bsolo3.0.16 -t1800 -m1800 /tmp/evaluation/362589-1177015195/instance-362589-1177015195.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: 1.24 1.05 1.02 3/64 32052
/proc/meminfo: memFree=1793312/2055920 swapFree=4182972/4192956
[pid=32052] ppid=32050 vsize=14600 CPUtime=0
/proc/32052/stat : 32052 (bsolo3.0.16) R 32050 32052 31542 0 -1 4194304 367 0 0 0 0 0 0 0 18 0 1 0 149436567 14950400 335 18446744073709551615 134512640 135841103 4294956672 18446744073709551615 4294960144 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32052/statm: 3650 336 281 324 0 2003 0

[startup+0.0521289 s]
/proc/loadavg: 1.24 1.05 1.02 3/64 32052
/proc/meminfo: memFree=1793312/2055920 swapFree=4182972/4192956
[pid=32052] ppid=32050 vsize=8312 CPUtime=0.04
/proc/32052/stat : 32052 (bsolo3.0.16) R 32050 32052 31542 0 -1 4194304 809 0 0 0 4 0 0 0 18 0 1 0 149436567 8511488 777 18446744073709551615 134512640 135841103 4294956672 18446744073709551615 10462843 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32052/statm: 2078 777 345 324 0 431 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 8312

[startup+0.101136 s]
/proc/loadavg: 1.24 1.05 1.02 3/64 32052
/proc/meminfo: memFree=1793312/2055920 swapFree=4182972/4192956
[pid=32052] ppid=32050 vsize=8840 CPUtime=0.09
/proc/32052/stat : 32052 (bsolo3.0.16) R 32050 32052 31542 0 -1 4194304 1009 0 0 0 9 0 0 0 18 0 1 0 149436567 9052160 977 18446744073709551615 134512640 135841103 4294956672 18446744073709551615 10462843 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32052/statm: 2210 977 413 324 0 563 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 8840

[startup+0.301171 s]
/proc/loadavg: 1.24 1.05 1.02 3/64 32052
/proc/meminfo: memFree=1793312/2055920 swapFree=4182972/4192956
[pid=32052] ppid=32050 vsize=10976 CPUtime=0.29
/proc/32052/stat : 32052 (bsolo3.0.16) R 32050 32052 31542 0 -1 4194304 1845 0 0 0 29 0 0 0 19 0 1 0 149436567 11239424 1773 18446744073709551615 134512640 135841103 4294956672 18446744073709551615 10462843 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32052/statm: 2744 1773 693 324 0 1097 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 10976

[startup+0.70224 s]
/proc/loadavg: 1.24 1.05 1.02 3/64 32052
/proc/meminfo: memFree=1793312/2055920 swapFree=4182972/4192956
[pid=32052] ppid=32050 vsize=13324 CPUtime=0.69
/proc/32052/stat : 32052 (bsolo3.0.16) R 32050 32052 31542 0 -1 4194304 3409 0 0 0 68 1 0 0 22 0 1 0 149436567 13643776 2621 18446744073709551615 134512640 135841103 4294956672 18446744073709551615 134551244 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32052/statm: 3331 2621 306 324 0 2400 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 13324

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

[startup+1.10531 s]
/proc/loadavg: 1.22 1.05 1.02 2/65 32053
/proc/meminfo: memFree=1783960/2055920 swapFree=4182972/4192956
[pid=32052] ppid=32050 vsize=13324 CPUtime=1.09
/proc/32052/stat : 32052 (bsolo3.0.16) R 32050 32052 31542 0 -1 4194304 3410 0 0 0 108 1 0 0 25 0 1 0 149436567 13643776 2622 18446744073709551615 134512640 135841103 4294956672 18446744073709551615 4294960144 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32052/statm: 3331 2622 306 324 0 2400 0
Current children cumulated CPU time (s) 1.09
Current children cumulated vsize (KiB) 13324

[startup+1.30134 s]
/proc/loadavg: 1.22 1.05 1.02 2/65 32053
/proc/meminfo: memFree=1783960/2055920 swapFree=4182972/4192956
[pid=32052] ppid=32050 vsize=13324 CPUtime=1.29
/proc/32052/stat : 32052 (bsolo3.0.16) R 32050 32052 31542 0 -1 4194304 3419 0 0 0 127 2 0 0 25 0 1 0 149436567 13643776 2631 18446744073709551615 134512640 135841103 4294956672 18446744073709551615 134551378 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32052/statm: 3331 2631 306 324 0 2400 0
Current children cumulated CPU time (s) 1.29
Current children cumulated vsize (KiB) 13324

[startup+1.40136 s]
/proc/loadavg: 1.22 1.05 1.02 2/65 32053
/proc/meminfo: memFree=1783960/2055920 swapFree=4182972/4192956
[pid=32052] ppid=32050 vsize=13456 CPUtime=1.39
/proc/32052/stat : 32052 (bsolo3.0.16) R 32050 32052 31542 0 -1 4194304 3429 0 0 0 137 2 0 0 25 0 1 0 149436567 13778944 2641 18446744073709551615 134512640 135841103 4294956672 18446744073709551615 4294960144 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32052/statm: 3364 2641 306 324 0 2433 0
Current children cumulated CPU time (s) 1.39
Current children cumulated vsize (KiB) 13456

Child status: 0
Real time (s): 1.40803
CPU time (s): 1.40479
CPU user time (s): 1.38179
CPU system time (s): 0.022996
CPU usage (%): 99.7694
Max. virtual memory (cumulated for all children) (KiB): 13456

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.38179
system time used= 0.022996
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 3432
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= 12
involuntary context switches= 3

runsolver used 0.002999 second user time and 0.009998 second system time

The end

Launcher Data (download as text)

Begin job on node25 on Thu Apr 19 20:39:55 UTC 2007

IDJOB= 362589
IDBENCH= 1579
IDSOLVER= 163
FILE ID= node25/362589-1177015195

PBS_JOBID= 4630545

Free space on /tmp= 66362 MiB

SOLVER NAME= bsolo 3.0.16
BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/OPT-SMALLINT/reduced/mps-v2-20-10/plato.asu.edu/pub/milp/normalized-reduced-mps-v2-20-10-neos12.opb
COMMAND LINE= bsolo3.0.16 -t1800 -m1800 /tmp/evaluation/362589-1177015195/instance-362589-1177015195.opb            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node25/watcher-362589-1177015195 -o ROOT/results/node25/solver-362589-1177015195 -C 1800 -W 3600 -M 1800 --output-limit 1,15  bsolo3.0.16 -t1800 -m1800 /tmp/evaluation/362589-1177015195/instance-362589-1177015195.opb            

META MD5SUM SOLVER= b11bf0769a124f73ad50b0fdfcd50482
MD5SUM BENCH=  a0b6152dd8614459e798b375ad9ceb75

RANDOM SEED= 26554799

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node25.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		: 3000.261
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		: 3000.261
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:       1793720 kB
Buffers:         29472 kB
Cached:         183696 kB
SwapCached:       3684 kB
Active:          91280 kB
Inactive:       132792 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1793720 kB
SwapTotal:     4192956 kB
SwapFree:      4182972 kB
Dirty:            7432 kB
Writeback:           0 kB
Mapped:          16892 kB
Slab:            24184 kB
Committed_AS:  2183636 kB
PageTables:       1476 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= 66362 MiB

End job on node25 on Thu Apr 19 20:39:57 UTC 2007