Trace number 2669254

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 0.1UNSAT 0.865867 0.86638

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 http://www.residual.se/pbct
0.00/0.00	c Based on OpenSMT/CT 20091015
0.09/0.12	c constraints 0/0 clauses 7279/0 units 596
0.09/0.12	c vars 4354
0.09/0.14	c objective 4044 + 202
0.59/0.63	c 0.572912 52.5352 17 645
0.79/0.86	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-2669254-1276453861/watcher-2669254-1276453861 -o /tmp/evaluation-result-2669254-1276453861/solver-2669254-1276453861 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2669254-1276453861.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: 1.09 1.01 1.00 3/106 26457
/proc/meminfo: memFree=1844992/2059040 swapFree=4140384/4192956
[pid=26457] ppid=26455 vsize=2620 CPUtime=0
/proc/26457/stat : 26457 (pbct) R 26455 26457 25544 0 -1 4202496 330 0 0 0 0 0 0 0 20 0 1 0 20987775 2682880 253 1992294400 134512640 136485738 4287754256 18446744073709551615 135178825 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/26457/statm: 655 256 149 482 0 171 0

[startup+0.011125 s]
/proc/loadavg: 1.09 1.01 1.00 3/106 26457
/proc/meminfo: memFree=1844992/2059040 swapFree=4140384/4192956
[pid=26457] ppid=26455 vsize=2752 CPUtime=0
/proc/26457/stat : 26457 (pbct) R 26455 26457 25544 0 -1 4202496 355 0 0 0 0 0 0 0 20 0 1 0 20987775 2818048 278 1992294400 134512640 136485738 4287754256 18446744073709551615 134541019 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/26457/statm: 688 278 151 482 0 204 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 2752

[startup+0.101122 s]
/proc/loadavg: 1.09 1.01 1.00 3/106 26457
/proc/meminfo: memFree=1844992/2059040 swapFree=4140384/4192956
[pid=26457] ppid=26455 vsize=2884 CPUtime=0.09
/proc/26457/stat : 26457 (pbct) R 26455 26457 25544 0 -1 4202496 406 0 0 0 9 0 0 0 20 0 1 0 20987775 2953216 329 1992294400 134512640 136485738 4287754256 18446744073709551615 135856851 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/26457/statm: 721 329 157 482 0 237 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2884

[startup+0.301164 s]
/proc/loadavg: 1.09 1.01 1.00 3/106 26457
/proc/meminfo: memFree=1844992/2059040 swapFree=4140384/4192956
[pid=26457] ppid=26455 vsize=22212 CPUtime=0.29
/proc/26457/stat : 26457 (pbct) R 26455 26457 25544 0 -1 4202496 5232 0 0 0 27 2 0 0 20 0 1 0 20987775 22745088 5056 1992294400 134512640 136485738 4287754256 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26457/statm: 5553 5057 198 482 0 5069 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 22212

[startup+0.701249 s]
/proc/loadavg: 1.09 1.01 1.00 3/106 26457
/proc/meminfo: memFree=1844992/2059040 swapFree=4140384/4192956
[pid=26457] ppid=26455 vsize=51596 CPUtime=0.69
/proc/26457/stat : 26457 (pbct) R 26455 26457 25544 0 -1 4202496 13497 0 0 0 64 5 0 0 21 0 1 0 20987775 52834304 12232 1992294400 134512640 136485738 4287754256 18446744073709551615 135839931 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26457/statm: 12899 12232 247 482 0 12415 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 51596

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

[startup+0.80127 s]
/proc/loadavg: 1.09 1.01 1.00 3/106 26457
/proc/meminfo: memFree=1844992/2059040 swapFree=4140384/4192956
[pid=26457] ppid=26455 vsize=51080 CPUtime=0.79
/proc/26457/stat : 26457 (pbct) R 26455 26457 25544 0 -1 4202496 13497 0 0 0 74 5 0 0 21 0 1 0 20987775 52305920 12137 1992294400 134512640 136485738 4287754256 18446744073709551615 135839931 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26457/statm: 12770 12137 247 482 0 12286 0
Current children cumulated CPU time (s) 0.79
Current children cumulated vsize (KiB) 51080

Child status: 0
Real time (s): 0.86638
CPU time (s): 0.865867
CPU user time (s): 0.803877
CPU system time (s): 0.06199
CPU usage (%): 99.9408
Max. virtual memory (cumulated for all children) (KiB): 52928

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.803877
system time used= 0.06199
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 13498
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= 15

runsolver used 0.003999 second user time and 0.007998 second system time

The end

Launcher Data 

Begin job on node010 at 2010-06-13 20:31:01
IDJOB=2669254
IDBENCH=2153
IDSOLVER=1170
FILE ID=node010/2669254-1276453861
PBS_JOBID= 11173347
Free space on /tmp= 62500 MiB

SOLVER NAME= PB/CT 0.1
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-2669254-1276453861/watcher-2669254-1276453861 -o /tmp/evaluation-result-2669254-1276453861/solver-2669254-1276453861 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2669254-1276453861.opb

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

MD5SUM BENCH= cb00b7b35b229b023209b52f92539f50
RANDOM SEED=805596896

node010.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		: 3000.267
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	: 6000.53
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		: 3000.267
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	: 5599.46
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1845388 kB
Buffers:         32376 kB
Cached:         102016 kB
SwapCached:       6500 kB
Active:          93500 kB
Inactive:        54080 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1845388 kB
SwapTotal:     4192956 kB
SwapFree:      4140384 kB
Dirty:            2368 kB
Writeback:           0 kB
AnonPages:       10776 kB
Mapped:          12988 kB
Slab:            44288 kB
PageTables:       4000 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   182624 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= 62496 MiB
End job on node010 at 2010-06-13 20:31:02