details

property	value
status	complete
benchmark	ack.koat
ran by	Akihisa Yamada
cpu timeout	1200 seconds
wallclock timeout	300 seconds
memory limit	137438953472 bytes
execution host	n050.star.cs.uiowa.edu
space	misc

run statistics

property	value
solver	CoFloCo 2018
configuration	its
runtime (wallclock)	0.205863952637 seconds
cpu usage	0.118798466
max memory	8278016.0

stage attributes

key	value
output-size	2281
starexec-result	MAYBE

output

/export/starexec/sandbox/solver/bin/starexec_run_its /export/starexec/sandbox/benchmark/theBenchmark.koat /export/starexec/sandbox/output/output_files -------------------------------------------------------------------------------- MAYBE Preprocessing Cost Relations ===================================== #### Computed strongly connected components 0. recursive : [ack/3] 1. non_recursive : [exit_location/1] 2. non_recursive : [ack_loop_cont/2] 3. non_recursive : [start/3] #### Obtained direct recursion through partial evaluation 0. SCC is partially evaluated into ack/3 1. SCC is completely evaluated into other SCCs 2. SCC is completely evaluated into other SCCs 3. SCC is partially evaluated into start/3 Control-Flow Refinement of Cost Relations ===================================== ### Specialization of cost equations ack/3 * CE 4 is refined into CE [5] * CE 2 is refined into CE [6] * CE 3 is refined into CE [7] ### Cost equations --> "Loop" of ack/3 * CEs [6] --> Loop 5 * CEs [7] --> Loop 6 * CEs [5] --> Loop 7 ### Ranking functions of CR ack(A,B,D) #### Partial ranking functions of CR ack(A,B,D) * Partial RF of phase [5,6]: - RF of loop [5:1]: A - RF of loop [6:1]: B depends on loops [5:1] ### Specialization of cost equations start/3 * CE 1 is refined into CE [8,9] ### Cost equations --> "Loop" of start/3 * CEs [9] --> Loop 8 * CEs [8] --> Loop 9 ### Ranking functions of CR start(A,B,D) #### Partial ranking functions of CR start(A,B,D) Computing Bounds ===================================== #### Cost of chains of ack(A,B,D): * Chain [[5,6],7]: 1*it(5)+1*it(6)+0 Such that:it(5) =< A with precondition: [D=2,A>=1,B>=1] * Chain [7]: 0 with precondition: [D=2] #### Cost of chains of start(A,B,D): * Chain [9]: 0 with precondition: [] * Chain [8]: 1*s(1)+1*s(2)+0 Such that:s(1) =< A with precondition: [A>=1,B>=1] Closed-form bounds of start(A,B,D): ------------------------------------- * Chain [9] with precondition: [] - Upper bound: 0 - Complexity: constant * Chain [8] with precondition: [A>=1,B>=1] - Upper bound: inf - Complexity: infinity ### Maximum cost of start(A,B,D): inf Asymptotic class: infinity * Total analysis performed in 42 ms. popout

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actions

all output return to Compl Integ Trans Syste 26843