Trace number 2682798

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 0.534917 0.535021

General information on the benchmark

Namenormalized-PB06/OPT-SMALLINT/submitted-PB05/manquinho/
primes-dimacs-cnf/normalized-ssa6288-047.opb
MD5SUM74304bad8e53580b77abf30e0c0ba7f6
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 benchmark0.272958
Has Objective FunctionYES
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables20820
Total number of constraints44648
Number of constraints which are clauses44648
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 20820
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 20820
Number of bits of the sum of numbers in the objective function 15
Biggest number in a constraint 1
Number of bits of the biggest number in a constraint 1
Biggest sum of numbers in a constraint 20820
Number of bits of the biggest sum of numbers15
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
0.49/0.51	c constraints 0/0 clauses 44204/0 units 200
0.49/0.51	c vars 20820
0.49/0.53	c objective 20712 + 61
0.49/0.53	c solved in presolving
0.49/0.53	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-2682798-1277480694/watcher-2682798-1277480694 -o /tmp/evaluation-result-2682798-1277480694/solver-2682798-1277480694 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2682798-1277480694.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 3/105 31463
/proc/meminfo: memFree=1804800/2059040 swapFree=4139628/4192956
[pid=31463] ppid=31461 vsize=2680 CPUtime=0
/proc/31463/stat : 31463 (pbct) R 31461 31463 31166 0 -1 4202496 340 0 0 0 0 0 0 0 25 0 1 0 89362879 2744320 260 1992294400 134512640 136421960 4286644144 18446744073709551615 135160348 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/31463/statm: 670 260 135 467 0 201 0

[startup+0.05689 s]
/proc/loadavg: 1.00 0.99 0.91 3/105 31463
/proc/meminfo: memFree=1804800/2059040 swapFree=4139628/4192956
[pid=31463] ppid=31461 vsize=4008 CPUtime=0.05
/proc/31463/stat : 31463 (pbct) R 31461 31463 31166 0 -1 4202496 760 0 0 0 5 0 0 0 25 0 1 0 89362879 4104192 533 1992294400 134512640 136421960 4286644144 18446744073709551615 135380484 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/31463/statm: 1002 533 145 467 0 533 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 4008

[startup+0.100894 s]
/proc/loadavg: 1.00 0.99 0.91 3/105 31463
/proc/meminfo: memFree=1804800/2059040 swapFree=4139628/4192956
[pid=31463] ppid=31461 vsize=4008 CPUtime=0.09
/proc/31463/stat : 31463 (pbct) R 31461 31463 31166 0 -1 4202496 770 0 0 0 9 0 0 0 25 0 1 0 89362879 4104192 543 1992294400 134512640 136421960 4286644144 18446744073709551615 135380504 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/31463/statm: 1002 543 145 467 0 533 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4008

[startup+0.300915 s]
/proc/loadavg: 1.00 0.99 0.91 3/105 31463
/proc/meminfo: memFree=1804800/2059040 swapFree=4139628/4192956
[pid=31463] ppid=31461 vsize=4796 CPUtime=0.29
/proc/31463/stat : 31463 (pbct) R 31461 31463 31166 0 -1 4202496 967 0 0 0 29 0 0 0 25 0 1 0 89362879 4911104 740 1992294400 134512640 136421960 4286644144 18446744073709551615 135161806 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/31463/statm: 1199 740 145 467 0 730 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 4796

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

[startup+0.500936 s]
/proc/loadavg: 1.00 0.99 0.91 3/105 31463
/proc/meminfo: memFree=1804800/2059040 swapFree=4139628/4192956
[pid=31463] ppid=31461 vsize=5376 CPUtime=0.49
/proc/31463/stat : 31463 (pbct) R 31461 31463 31166 0 -1 4202496 1115 0 0 0 49 0 0 0 25 0 1 0 89362879 5505024 888 1992294400 134512640 136421960 4286644144 18446744073709551615 135829965 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/31463/statm: 1344 888 146 467 0 875 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 5376

Child status: 0
Real time (s): 0.535021
CPU time (s): 0.534917
CPU user time (s): 0.527919
CPU system time (s): 0.006998
CPU usage (%): 99.9806
Max. virtual memory (cumulated for all children) (KiB): 5376

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.527919
system time used= 0.006998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1124
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= 2

runsolver used 0.001999 second user time and 0.010998 second system time

The end

Launcher Data 

Begin job on node082 at 2010-06-25 17:44:54
IDJOB=2682798
IDBENCH=2068
IDSOLVER=1192
FILE ID=node082/2682798-1277480694
PBS_JOBID= 11190486
Free space on /tmp= 62356 MiB

SOLVER NAME= PB/CT 0.1 fixed
BENCH NAME= PB06//final/normalized-PB06/OPT-SMALLINT/submitted-PB05/manquinho/primes-dimacs-cnf/normalized-ssa6288-047.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2682798-1277480694/watcher-2682798-1277480694 -o /tmp/evaluation-result-2682798-1277480694/solver-2682798-1277480694 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2682798-1277480694.opb

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

MD5SUM BENCH= 74304bad8e53580b77abf30e0c0ba7f6
RANDOM SEED=276269491

node082.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		: 3000.215
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	: 6000.43
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		: 3000.215
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	: 5999.41
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1805204 kB
Buffers:         28544 kB
Cached:         123076 kB
SwapCached:       6156 kB
Active:          72272 kB
Inactive:        92892 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1805204 kB
SwapTotal:     4192956 kB
SwapFree:      4139628 kB
Dirty:            3372 kB
Writeback:           0 kB
AnonPages:       12124 kB
Mapped:          11944 kB
Slab:            66716 kB
PageTables:       4132 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   181696 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    264964 kB
VmallocChunk: 34359471699 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 62356 MiB
End job on node082 at 2010-06-25 17:44:54