Trace number 2682856

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. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock 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/CT 0.1 fixedUNSAT 0.818874 0.817732

General information on the benchmark

Namenormalized-PB06/OPT-SMALLINT/submitted-PB05/manquinho/
primes-dimacs-cnf/normalized-bf1355-075.opb
MD5SUMf91b1a8ba871517e9c6c65d2a92ea818
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 benchmark0.213967
Has Objective FunctionYES
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables4360
Total number of constraints8958
Number of constraints which are clauses8958
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint1
Maximum length of a constraint6
Number of terms in the objective function 4360
Biggest coefficient in the objective function 1
Number of bits for the biggest coefficient in the objective function 1
Sum of the numbers in the objective function 4360
Number of bits of the sum of numbers in the objective function 13
Biggest number in a constraint 1
Number of bits of the biggest number in a constraint 1
Biggest sum of numbers in a constraint 4360
Number of bits of the biggest sum of numbers13
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Solver Data 

0.00/0.00	c PB/CT 0.1.1 http://www.residual.se/pbct
0.00/0.00	c Based on OpenSMT/CT 20091015
0.09/0.11	c constraints 0/0 clauses 6967/0 units 718
0.09/0.11	c vars 4360
0.09/0.12	c objective 3989 + 243
0.49/0.58	c 0.527919 51.6797 15 70
0.79/0.81	s UNSATISFIABLE

Verifier Data 

ERROR: no interpretation found !

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2682856-1277481663/watcher-2682856-1277481663 -o /tmp/evaluation-result-2682856-1277481663/solver-2682856-1277481663 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2682856-1277481663.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): 2000 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
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.99 0.98 0.91 3/106 30577
/proc/meminfo: memFree=1860644/2059040 swapFree=4140792/4192956
[pid=30577] ppid=30575 vsize=2680 CPUtime=0
/proc/30577/stat : 30577 (pbct) R 30575 30577 30067 0 -1 4202496 339 0 0 0 0 0 0 0 20 0 1 0 89459173 2744320 259 1992294400 134512640 136421960 4289932240 18446744073709551615 135160348 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30577/statm: 670 259 135 467 0 201 0

[startup+0.033187 s]
/proc/loadavg: 0.99 0.98 0.91 3/106 30577
/proc/meminfo: memFree=1860644/2059040 swapFree=4140792/4192956
[pid=30577] ppid=30575 vsize=2680 CPUtime=0.03
/proc/30577/stat : 30577 (pbct) R 30575 30577 30067 0 -1 4202496 351 0 0 0 3 0 0 0 20 0 1 0 89459173 2744320 271 1992294400 134512640 136421960 4289932240 18446744073709551615 135805357 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30577/statm: 670 271 145 467 0 201 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 2680

[startup+0.101159 s]
/proc/loadavg: 0.99 0.98 0.91 3/106 30577
/proc/meminfo: memFree=1860644/2059040 swapFree=4140792/4192956
[pid=30577] ppid=30575 vsize=2812 CPUtime=0.09
/proc/30577/stat : 30577 (pbct) R 30575 30577 30067 0 -1 4202496 397 0 0 0 9 0 0 0 20 0 1 0 89459173 2879488 317 1992294400 134512640 136421960 4289932240 18446744073709551615 134544409 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30577/statm: 703 317 146 467 0 234 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2812

[startup+0.301179 s]
/proc/loadavg: 0.99 0.98 0.91 3/106 30577
/proc/meminfo: memFree=1860644/2059040 swapFree=4140792/4192956
[pid=30577] ppid=30575 vsize=23972 CPUtime=0.29
/proc/30577/stat : 30577 (pbct) R 30575 30577 30067 0 -1 4202496 5703 0 0 0 27 2 0 0 20 0 1 0 89459173 24547328 5524 1992294400 134512640 136421960 4289932240 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30577/statm: 5993 5525 194 467 0 5524 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 23972

[startup+0.701218 s]
/proc/loadavg: 0.99 0.98 0.91 3/106 30577
/proc/meminfo: memFree=1860644/2059040 swapFree=4140792/4192956
[pid=30577] ppid=30575 vsize=50204 CPUtime=0.69
/proc/30577/stat : 30577 (pbct) R 30575 30577 30067 0 -1 4202496 13282 0 0 0 64 5 0 0 21 0 1 0 89459173 51408896 11930 1992294400 134512640 136421960 4289932240 18446744073709551615 134701435 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30577/statm: 12551 11930 238 467 0 12082 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 50204

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

[startup+0.801228 s]
/proc/loadavg: 0.99 0.98 0.91 3/106 30577
/proc/meminfo: memFree=1860644/2059040 swapFree=4140792/4192956
[pid=30577] ppid=30575 vsize=47356 CPUtime=0.79
/proc/30577/stat : 30577 (pbct) R 30575 30577 30067 0 -1 4202496 13282 0 0 0 74 5 0 0 21 0 1 0 89459173 48492544 11501 1992294400 134512640 136421960 4289932240 18446744073709551615 135801268 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30577/statm: 11839 11501 238 467 0 11370 0
Current children cumulated CPU time (s) 0.79
Current children cumulated vsize (KiB) 47356

Child status: 0
Real time (s): 0.817732
CPU time (s): 0.818874
CPU user time (s): 0.752885
CPU system time (s): 0.065989
CPU usage (%): 100.14
Max. virtual memory (cumulated for all children) (KiB): 52140

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.752885
system time used= 0.065989
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 13283
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= 1
involuntary context switches= 3

runsolver used 0.002999 second user time and 0.008998 second system time

The end

Launcher Data 

Begin job on node036 at 2010-06-25 18:01:03
IDJOB=2682856
IDBENCH=2169
IDSOLVER=1192
FILE ID=node036/2682856-1277481663
PBS_JOBID= 11190508
Free space on /tmp= 62380 MiB

SOLVER NAME= PB/CT 0.1 fixed
BENCH NAME= PB06//final/normalized-PB06/OPT-SMALLINT/submitted-PB05/manquinho/primes-dimacs-cnf/normalized-bf1355-075.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2682856-1277481663/watcher-2682856-1277481663 -o /tmp/evaluation-result-2682856-1277481663/solver-2682856-1277481663 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2682856-1277481663.opb

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= f91b1a8ba871517e9c6c65d2a92ea818
RANDOM SEED=1071735647

node036.alineos.net Linux 2.6.18-164.el5 #1 SMP Thu Sep 3 03:28:30 EDT 2009

/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		: 3000.251
cache size	: 2048 KB
physical id	: 0
siblings	: 1
core id		: 0
cpu cores	: 1
apicid		: 0
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 constant_tsc pni monitor ds_cpl cid cx16 xtpr
bogomips	: 6000.50
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		: 3000.251
cache size	: 2048 KB
physical id	: 3
siblings	: 1
core id		: 0
cpu cores	: 1
apicid		: 6
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 constant_tsc pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5599.45
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1861172 kB
Buffers:         24120 kB
Cached:          75724 kB
SwapCached:       5352 kB
Active:          69504 kB
Inactive:        43692 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1861172 kB
SwapTotal:     4192956 kB
SwapFree:      4140792 kB
Dirty:            2240 kB
Writeback:           0 kB
AnonPages:       12028 kB
Mapped:          12000 kB
Slab:            62592 kB
PageTables:       4132 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   181440 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    264948 kB
VmallocChunk: 34359471699 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 62376 MiB
End job on node036 at 2010-06-25 18:01:04