java -Xss1g -Xmx4000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCHC.xml --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -s ../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_No_Goto.epf -i /storage/chc-comp/hopv/lia/termination/Fibonacci03.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 11:40:06,409 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 11:40:06,411 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 11:40:06,433 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 11:40:06,433 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 11:40:06,434 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 11:40:06,435 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 11:40:06,437 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 11:40:06,439 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 11:40:06,440 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 11:40:06,442 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 11:40:06,442 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 11:40:06,443 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 11:40:06,444 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 11:40:06,446 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 11:40:06,447 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 11:40:06,448 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 11:40:06,450 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 11:40:06,452 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 11:40:06,461 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 11:40:06,462 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 11:40:06,464 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 11:40:06,464 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 11:40:06,464 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 11:40:06,464 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 11:40:06,468 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 11:40:06,468 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 11:40:06,469 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 11:40:06,470 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 11:40:06,470 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 11:40:06,470 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 11:40:06,476 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 11:40:06,476 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 11:40:06,477 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 11:40:06,477 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 11:40:06,477 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_No_Goto.epf [2018-06-22 11:40:06,490 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 11:40:06,490 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 11:40:06,490 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 11:40:06,490 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 11:40:06,491 INFO L131 SettingsManager]: Preferences of ChcToBoogie differ from their defaults: [2018-06-22 11:40:06,492 INFO L133 SettingsManager]: * Use one large procedure with gotos to replace tail recursive calls=false [2018-06-22 11:40:06,492 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 11:40:06,492 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 11:40:06,492 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 11:40:06,492 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 11:40:06,493 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 11:40:06,493 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 11:40:06,493 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 11:40:06,493 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 11:40:06,493 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 11:40:06,493 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 11:40:06,494 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 11:40:06,494 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 11:40:06,494 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 11:40:06,495 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 11:40:06,496 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 11:40:06,548 INFO ]: Repository-Root is: /tmp [2018-06-22 11:40:06,563 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 11:40:06,569 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 11:40:06,571 INFO ]: Initializing SmtParser... [2018-06-22 11:40:06,571 INFO ]: SmtParser initialized [2018-06-22 11:40:06,572 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/hopv/lia/termination/Fibonacci03.smt2 [2018-06-22 11:40:06,573 INFO ]: Parsing .smt2 file as a set of Horn Clauses No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-06-22 11:40:06,670 INFO ]: Executing SMT file /storage/chc-comp/hopv/lia/termination/Fibonacci03.smt2 unknown [2018-06-22 11:40:07,040 INFO ]: Succesfully executed SMT file /storage/chc-comp/hopv/lia/termination/Fibonacci03.smt2 [2018-06-22 11:40:07,045 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 11:40:07,053 INFO ]: Walking toolchain with 4 elements. [2018-06-22 11:40:07,054 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 11:40:07,054 INFO ]: Initializing ChcToBoogie... [2018-06-22 11:40:07,054 INFO ]: ChcToBoogie initialized [2018-06-22 11:40:07,057 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 11:40:07" (1/1) ... [2018-06-22 11:40:07,109 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:40:07 Unit [2018-06-22 11:40:07,109 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 11:40:07,110 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 11:40:07,110 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 11:40:07,110 INFO ]: Boogie Preprocessor initialized [2018-06-22 11:40:07,132 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:40:07" (1/1) ... [2018-06-22 11:40:07,132 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:40:07" (1/1) ... [2018-06-22 11:40:07,143 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:40:07" (1/1) ... [2018-06-22 11:40:07,143 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:40:07" (1/1) ... [2018-06-22 11:40:07,157 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:40:07" (1/1) ... [2018-06-22 11:40:07,160 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:40:07" (1/1) ... [2018-06-22 11:40:07,162 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:40:07" (1/1) ... [2018-06-22 11:40:07,164 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 11:40:07,165 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 11:40:07,165 INFO ]: Initializing RCFGBuilder... [2018-06-22 11:40:07,165 INFO ]: RCFGBuilder initialized [2018-06-22 11:40:07,170 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:40:07" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 11:40:07,179 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-22 11:40:07,179 INFO ]: Found specification of procedure False [2018-06-22 11:40:07,179 INFO ]: Found implementation of procedure False [2018-06-22 11:40:07,179 INFO ]: Specification and implementation of procedure failDLRunknownCLN3 given in one single declaration [2018-06-22 11:40:07,179 INFO ]: Found specification of procedure failDLRunknownCLN3 [2018-06-22 11:40:07,179 INFO ]: Found implementation of procedure failDLRunknownCLN3 [2018-06-22 11:40:07,179 INFO ]: Specification and implementation of procedure fib_1030DLRunknownCLN11 given in one single declaration [2018-06-22 11:40:07,179 INFO ]: Found specification of procedure fib_1030DLRunknownCLN11 [2018-06-22 11:40:07,179 INFO ]: Found implementation of procedure fib_1030DLRunknownCLN11 [2018-06-22 11:40:07,179 INFO ]: Specification and implementation of procedure fib_without_checking_1060DLRunknownCLN15 given in one single declaration [2018-06-22 11:40:07,179 INFO ]: Found specification of procedure fib_without_checking_1060DLRunknownCLN15 [2018-06-22 11:40:07,179 INFO ]: Found implementation of procedure fib_without_checking_1060DLRunknownCLN15 [2018-06-22 11:40:07,179 INFO ]: Specification and implementation of procedure fib_1030DLRunknownCLN12 given in one single declaration [2018-06-22 11:40:07,179 INFO ]: Found specification of procedure fib_1030DLRunknownCLN12 [2018-06-22 11:40:07,179 INFO ]: Found implementation of procedure fib_1030DLRunknownCLN12 [2018-06-22 11:40:07,180 INFO ]: Specification and implementation of procedure fib_1030DLRunknownCLN8 given in one single declaration [2018-06-22 11:40:07,180 INFO ]: Found specification of procedure fib_1030DLRunknownCLN8 [2018-06-22 11:40:07,180 INFO ]: Found implementation of procedure fib_1030DLRunknownCLN8 [2018-06-22 11:40:07,180 INFO ]: Specification and implementation of procedure fib_without_checking_1060DLRunknownCLN16 given in one single declaration [2018-06-22 11:40:07,180 INFO ]: Found specification of procedure fib_without_checking_1060DLRunknownCLN16 [2018-06-22 11:40:07,180 INFO ]: Found implementation of procedure fib_without_checking_1060DLRunknownCLN16 [2018-06-22 11:40:07,180 INFO ]: Specification and implementation of procedure botDLRunknownCLN2 given in one single declaration [2018-06-22 11:40:07,180 INFO ]: Found specification of procedure botDLRunknownCLN2 [2018-06-22 11:40:07,180 INFO ]: Found implementation of procedure botDLRunknownCLN2 [2018-06-22 11:40:07,180 INFO ]: Specification and implementation of procedure failDLRunknownCLN4 given in one single declaration [2018-06-22 11:40:07,180 INFO ]: Found specification of procedure failDLRunknownCLN4 [2018-06-22 11:40:07,180 INFO ]: Found implementation of procedure failDLRunknownCLN4 [2018-06-22 11:40:07,180 INFO ]: Specification and implementation of procedure fib_1030DLRunknownCLN7 given in one single declaration [2018-06-22 11:40:07,180 INFO ]: Found specification of procedure fib_1030DLRunknownCLN7 [2018-06-22 11:40:07,180 INFO ]: Found implementation of procedure fib_1030DLRunknownCLN7 [2018-06-22 11:40:07,180 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 11:40:07,180 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 11:40:07,180 INFO ]: Found implementation of procedure Ultimate.START [2018-06-22 11:40:07,788 INFO ]: Using library mode [2018-06-22 11:40:07,789 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:40:07 BoogieIcfgContainer [2018-06-22 11:40:07,789 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 11:40:07,790 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 11:40:07,790 INFO ]: Initializing TraceAbstraction... [2018-06-22 11:40:07,794 INFO ]: TraceAbstraction initialized [2018-06-22 11:40:07,794 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 11:40:07" (1/3) ... [2018-06-22 11:40:07,795 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e8fb214 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 11:40:07, skipping insertion in model container [2018-06-22 11:40:07,795 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:40:07" (2/3) ... [2018-06-22 11:40:07,795 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e8fb214 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 11:40:07, skipping insertion in model container [2018-06-22 11:40:07,795 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:40:07" (3/3) ... [2018-06-22 11:40:07,798 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 11:40:07,809 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 11:40:07,820 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 11:40:07,875 INFO ]: Using default assertion order modulation [2018-06-22 11:40:07,875 INFO ]: Interprodecural is true [2018-06-22 11:40:07,875 INFO ]: Hoare is false [2018-06-22 11:40:07,875 INFO ]: Compute interpolants for FPandBP [2018-06-22 11:40:07,875 INFO ]: Backedges is TWOTRACK [2018-06-22 11:40:07,875 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 11:40:07,875 INFO ]: Difference is false [2018-06-22 11:40:07,876 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 11:40:07,876 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 11:40:07,893 INFO ]: Start isEmpty. Operand 63 states. [2018-06-22 11:40:07,907 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-22 11:40:07,907 INFO ]: Found error trace [2018-06-22 11:40:07,908 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-22 11:40:07,908 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:40:07,914 INFO ]: Analyzing trace with hash 196020794, now seen corresponding path program 1 times [2018-06-22 11:40:07,916 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:40:07,916 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:40:07,958 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:40:07,958 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:40:07,958 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:40:07,970 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:40:07,993 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 11:40:07,996 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:40:07,996 INFO ]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-06-22 11:40:07,998 INFO ]: Interpolant automaton has 2 states [2018-06-22 11:40:08,012 INFO ]: Constructing interpolant automaton starting with 2 interpolants. [2018-06-22 11:40:08,013 INFO ]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-06-22 11:40:08,014 INFO ]: Start difference. First operand 63 states. Second operand 2 states. [2018-06-22 11:40:08,038 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:40:08,038 INFO ]: Finished difference Result 52 states and 70 transitions. [2018-06-22 11:40:08,038 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-06-22 11:40:08,041 INFO ]: Start accepts. Automaton has 2 states. Word has length 5 [2018-06-22 11:40:08,041 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:40:08,064 INFO ]: With dead ends: 52 [2018-06-22 11:40:08,064 INFO ]: Without dead ends: 47 [2018-06-22 11:40:08,065 INFO ]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-06-22 11:40:08,078 INFO ]: Start minimizeSevpa. Operand 47 states. [2018-06-22 11:40:08,105 INFO ]: Finished minimizeSevpa. Reduced states from 47 to 47. [2018-06-22 11:40:08,106 INFO ]: Start removeUnreachable. Operand 47 states. [2018-06-22 11:40:08,108 INFO ]: Finished removeUnreachable. Reduced from 47 states to 47 states and 64 transitions. [2018-06-22 11:40:08,109 INFO ]: Start accepts. Automaton has 47 states and 64 transitions. Word has length 5 [2018-06-22 11:40:08,110 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:40:08,110 INFO ]: Abstraction has 47 states and 64 transitions. [2018-06-22 11:40:08,110 INFO ]: Interpolant automaton has 2 states. [2018-06-22 11:40:08,110 INFO ]: Start isEmpty. Operand 47 states and 64 transitions. [2018-06-22 11:40:08,111 INFO ]: Finished isEmpty. Found accepting run of length 18 [2018-06-22 11:40:08,111 INFO ]: Found error trace [2018-06-22 11:40:08,111 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:40:08,112 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:40:08,112 INFO ]: Analyzing trace with hash -74540050, now seen corresponding path program 1 times [2018-06-22 11:40:08,112 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:40:08,112 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:40:08,113 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:40:08,113 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:40:08,113 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:40:08,159 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:40:08,468 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 11:40:08,468 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:40:08,468 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 11:40:08,475 INFO ]: Interpolant automaton has 4 states [2018-06-22 11:40:08,475 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 11:40:08,475 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 11:40:08,475 INFO ]: Start difference. First operand 47 states and 64 transitions. Second operand 4 states. [2018-06-22 11:40:08,629 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:40:08,629 INFO ]: Finished difference Result 41 states and 58 transitions. [2018-06-22 11:40:08,630 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-22 11:40:08,630 INFO ]: Start accepts. Automaton has 4 states. Word has length 17 [2018-06-22 11:40:08,630 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:40:08,630 INFO ]: With dead ends: 41 [2018-06-22 11:40:08,630 INFO ]: Without dead ends: 0 [2018-06-22 11:40:08,631 INFO ]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 11:40:08,631 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-22 11:40:08,631 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-22 11:40:08,631 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-22 11:40:08,632 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-22 11:40:08,632 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2018-06-22 11:40:08,632 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:40:08,632 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-22 11:40:08,632 INFO ]: Interpolant automaton has 4 states. [2018-06-22 11:40:08,632 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-22 11:40:08,632 INFO ]: Finished isEmpty. No accepting run. [2018-06-22 11:40:08,637 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 11:40:08 BoogieIcfgContainer [2018-06-22 11:40:08,637 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 11:40:08,638 INFO ]: Toolchain (without parser) took 1592.37 ms. Allocated memory is still 309.9 MB. Free memory was 257.3 MB in the beginning and 209.2 MB in the end (delta: 48.1 MB). Peak memory consumption was 48.1 MB. Max. memory is 3.6 GB. [2018-06-22 11:40:08,640 INFO ]: SmtParser took 0.07 ms. Allocated memory is still 309.9 MB. Free memory is still 275.4 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 11:40:08,641 INFO ]: ChcToBoogie took 56.07 ms. Allocated memory is still 309.9 MB. Free memory was 257.3 MB in the beginning and 254.3 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. [2018-06-22 11:40:08,641 INFO ]: Boogie Preprocessor took 54.43 ms. Allocated memory is still 309.9 MB. Free memory was 254.3 MB in the beginning and 253.2 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 3.6 GB. [2018-06-22 11:40:08,642 INFO ]: RCFGBuilder took 623.66 ms. Allocated memory is still 309.9 MB. Free memory was 253.2 MB in the beginning and 233.2 MB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 3.6 GB. [2018-06-22 11:40:08,643 INFO ]: TraceAbstraction took 846.99 ms. Allocated memory is still 309.9 MB. Free memory was 232.2 MB in the beginning and 209.2 MB in the end (delta: 23.0 MB). Peak memory consumption was 23.0 MB. Max. memory is 3.6 GB. [2018-06-22 11:40:08,650 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.07 ms. Allocated memory is still 309.9 MB. Free memory is still 275.4 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 56.07 ms. Allocated memory is still 309.9 MB. Free memory was 257.3 MB in the beginning and 254.3 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 54.43 ms. Allocated memory is still 309.9 MB. Free memory was 254.3 MB in the beginning and 253.2 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 623.66 ms. Allocated memory is still 309.9 MB. Free memory was 253.2 MB in the beginning and 233.2 MB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 846.99 ms. Allocated memory is still 309.9 MB. Free memory was 232.2 MB in the beginning and 209.2 MB in the end (delta: 23.0 MB). Peak memory consumption was 23.0 MB. Max. memory is 3.6 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [UNKNOWN] : assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 11 procedures, 63 locations, 1 error locations. SAFE Result, 0.7s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 124 SDtfs, 0 SDslu, 99 SDs, 0 SdLazy, 17 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=63occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 784 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/Fibonacci03.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_11-40-08-667.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/Fibonacci03.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_11-40-08-667.csv Received shutdown request...