Trace number 2682848

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 0.835872 0.836201

General information on the benchmark

Namenormalized-PB06/OPT-SMALLINT/submitted-PB05/manquinho/
primes-dimacs-cnf/normalized-bf1355-638.opb
MD5SUMcb00b7b35b229b023209b52f92539f50
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 benchmark0.155975
Has Objective FunctionYES
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables4354
Total number of constraints8945
Number of constraints which are clauses8945
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 4354
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 4354
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 4354
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
0.09/0.12	c constraints 0/0 clauses 7260/0 units 604
0.09/0.12	c vars 4354
0.09/0.13	c objective 4040 + 206
0.49/0.60	c 0.546916 52.3906 17 645
0.79/0.83	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-2682848-1277481246/watcher-2682848-1277481246 -o /tmp/evaluation-result-2682848-1277481246/solver-2682848-1277481246 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2682848-1277481246.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: 1.00 0.99 0.91 3/106 28344
/proc/meminfo: memFree=1807644/2059040 swapFree=4140996/4192956
[pid=28344] ppid=28342 vsize=2548 CPUtime=0
/proc/28344/stat : 28344 (pbct) R 28342 28344 28022 0 -1 4202496 322 0 0 0 0 0 0 0 25 0 1 0 89415318 2609152 242 1992294400 134512640 136421960 4291353856 18446744073709551615 135811817 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/28344/statm: 637 242 135 467 0 168 0

[startup+0.0690359 s]
/proc/loadavg: 1.00 0.99 0.91 3/106 28344
/proc/meminfo: memFree=1807644/2059040 swapFree=4140996/4192956
[pid=28344] ppid=28342 vsize=2680 CPUtime=0.06
/proc/28344/stat : 28344 (pbct) R 28342 28344 28022 0 -1 4202496 367 0 0 0 6 0 0 0 25 0 1 0 89415318 2744320 287 1992294400 134512640 136421960 4291353856 18446744073709551615 135805335 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/28344/statm: 670 287 145 467 0 201 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 2680

[startup+0.101039 s]
/proc/loadavg: 1.00 0.99 0.91 3/106 28344
/proc/meminfo: memFree=1807644/2059040 swapFree=4140996/4192956
[pid=28344] ppid=28342 vsize=2812 CPUtime=0.09
/proc/28344/stat : 28344 (pbct) R 28342 28344 28022 0 -1 4202496 397 0 0 0 9 0 0 0 25 0 1 0 89415318 2879488 317 1992294400 134512640 136421960 4291353856 18446744073709551615 134544409 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/28344/statm: 703 317 146 467 0 234 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2812

[startup+0.301062 s]
/proc/loadavg: 1.00 0.99 0.91 3/106 28344
/proc/meminfo: memFree=1807644/2059040 swapFree=4140996/4192956
[pid=28344] ppid=28342 vsize=24012 CPUtime=0.29
/proc/28344/stat : 28344 (pbct) R 28342 28344 28022 0 -1 4202496 5690 0 0 0 27 2 0 0 25 0 1 0 89415318 24588288 5511 1992294400 134512640 136421960 4291353856 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/28344/statm: 6003 5512 194 467 0 5534 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 24012

[startup+0.701106 s]
/proc/loadavg: 1.00 0.99 0.91 3/106 28344
/proc/meminfo: memFree=1807644/2059040 swapFree=4140996/4192956
[pid=28344] ppid=28342 vsize=50932 CPUtime=0.69
/proc/28344/stat : 28344 (pbct) R 28342 28344 28022 0 -1 4202496 13476 0 0 0 64 5 0 0 25 0 1 0 89415318 52154368 12115 1992294400 134512640 136421960 4291353856 18446744073709551615 134701435 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/28344/statm: 12733 12115 238 467 0 12264 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 50932

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

[startup+0.801117 s]
/proc/loadavg: 1.00 0.99 0.91 3/106 28344
/proc/meminfo: memFree=1807644/2059040 swapFree=4140996/4192956
[pid=28344] ppid=28342 vsize=49904 CPUtime=0.79
/proc/28344/stat : 28344 (pbct) R 28342 28344 28022 0 -1 4202496 13476 0 0 0 74 5 0 0 25 0 1 0 89415318 51101696 11954 1992294400 134512640 136421960 4291353856 18446744073709551615 134585544 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/28344/statm: 12476 11954 238 467 0 12007 0
Current children cumulated CPU time (s) 0.79
Current children cumulated vsize (KiB) 49904

Child status: 0
Real time (s): 0.836201
CPU time (s): 0.835872
CPU user time (s): 0.775882
CPU system time (s): 0.05999
CPU usage (%): 99.9607
Max. virtual memory (cumulated for all children) (KiB): 53644

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.775882
system time used= 0.05999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 13477
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 0.003999 second user time and 0.010998 second system time

The end

Launcher Data 

Begin job on node059 at 2010-06-25 17:54:06
IDJOB=2682848
IDBENCH=2153
IDSOLVER=1192
FILE ID=node059/2682848-1277481246
PBS_JOBID= 11190489
Free space on /tmp= 62432 MiB

SOLVER NAME= PB/CT 0.1 fixed
BENCH NAME= PB06//final/normalized-PB06/OPT-SMALLINT/submitted-PB05/manquinho/primes-dimacs-cnf/normalized-bf1355-638.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2682848-1277481246/watcher-2682848-1277481246 -o /tmp/evaluation-result-2682848-1277481246/solver-2682848-1277481246 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2682848-1277481246.opb

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

MD5SUM BENCH= cb00b7b35b229b023209b52f92539f50
RANDOM SEED=644289282

node059.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		: 3000.244
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	: 6000.48
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		: 3000.244
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:       1808172 kB
Buffers:         46640 kB
Cached:         104492 kB
SwapCached:       5356 kB
Active:          68896 kB
Inactive:        95644 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1808172 kB
SwapTotal:     4192956 kB
SwapFree:      4140996 kB
Dirty:            2144 kB
Writeback:           8 kB
AnonPages:       12020 kB
Mapped:          12012 kB
Slab:            64320 kB
PageTables:       4112 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   181432 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= 62432 MiB
End job on node059 at 2010-06-25 17:54:07