/usr/bin/java -ea -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive-simple/fibo_2calls_4-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-17 22:20:07,037 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 22:20:07,040 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 22:20:07,063 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-17 22:20:07,063 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-17 22:20:07,066 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-17 22:20:07,068 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-17 22:20:07,082 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-17 22:20:07,085 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-17 22:20:07,086 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-17 22:20:07,088 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-17 22:20:07,091 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-17 22:20:07,092 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-17 22:20:07,096 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-17 22:20:07,097 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-17 22:20:07,099 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-17 22:20:07,102 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-17 22:20:07,104 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-17 22:20:07,106 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-17 22:20:07,112 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-17 22:20:07,118 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-17 22:20:07,121 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-17 22:20:07,122 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-17 22:20:07,123 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-17 22:20:07,126 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-17 22:20:07,140 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-17 22:20:07,141 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-17 22:20:07,142 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-17 22:20:07,143 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-17 22:20:07,168 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 22:20:07,168 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 22:20:07,171 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-17 22:20:07,171 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-17 22:20:07,171 INFO L138 SettingsManager]: * Use SBE=true [2020-07-17 22:20:07,171 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 22:20:07,172 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 22:20:07,172 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 22:20:07,172 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 22:20:07,172 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 22:20:07,173 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 22:20:07,174 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 22:20:07,174 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 22:20:07,174 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 22:20:07,175 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 22:20:07,175 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 22:20:07,175 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 22:20:07,175 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 22:20:07,176 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-17 22:20:07,176 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 22:20:07,176 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 22:20:07,176 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 22:20:07,176 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 22:20:07,177 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-17 22:20:07,177 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-17 22:20:07,177 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-17 22:20:07,177 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-17 22:20:07,177 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 22:20:07,177 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-17 22:20:07,178 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-17 22:20:07,498 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 22:20:07,516 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 22:20:07,519 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 22:20:07,521 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 22:20:07,521 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 22:20:07,522 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/fibo_2calls_4-1.c [2020-07-17 22:20:07,597 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9da78067/cd435c6912ee4dbcb67885038fe363cf/FLAG82c02ed81 [2020-07-17 22:20:08,150 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 22:20:08,151 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/recursive-simple/fibo_2calls_4-1.c [2020-07-17 22:20:08,159 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9da78067/cd435c6912ee4dbcb67885038fe363cf/FLAG82c02ed81 [2020-07-17 22:20:08,489 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9da78067/cd435c6912ee4dbcb67885038fe363cf [2020-07-17 22:20:08,503 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 22:20:08,509 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 22:20:08,511 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 22:20:08,511 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 22:20:08,516 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 22:20:08,519 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 10:20:08" (1/1) ... [2020-07-17 22:20:08,524 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ec379ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:20:08, skipping insertion in model container [2020-07-17 22:20:08,525 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 10:20:08" (1/1) ... [2020-07-17 22:20:08,536 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 22:20:08,576 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 22:20:08,890 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 22:20:08,902 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 22:20:08,929 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 22:20:08,953 INFO L208 MainTranslator]: Completed translation [2020-07-17 22:20:08,954 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:20:08 WrapperNode [2020-07-17 22:20:08,955 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 22:20:08,956 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 22:20:08,956 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 22:20:08,957 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 22:20:08,979 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:20:08" (1/1) ... [2020-07-17 22:20:08,981 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:20:08" (1/1) ... [2020-07-17 22:20:08,988 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:20:08" (1/1) ... [2020-07-17 22:20:08,989 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:20:08" (1/1) ... [2020-07-17 22:20:09,172 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:20:08" (1/1) ... [2020-07-17 22:20:09,176 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:20:08" (1/1) ... [2020-07-17 22:20:09,182 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:20:08" (1/1) ... [2020-07-17 22:20:09,189 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 22:20:09,190 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 22:20:09,190 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 22:20:09,191 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 22:20:09,192 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:20:08" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 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 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 22:20:09,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 22:20:09,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 22:20:09,265 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2020-07-17 22:20:09,265 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2020-07-17 22:20:09,265 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 22:20:09,265 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-17 22:20:09,265 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 22:20:09,266 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2020-07-17 22:20:09,266 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2020-07-17 22:20:09,266 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 22:20:09,266 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 22:20:09,266 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 22:20:09,643 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 22:20:09,644 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-17 22:20:09,648 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 10:20:09 BoogieIcfgContainer [2020-07-17 22:20:09,649 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 22:20:09,650 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 22:20:09,651 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 22:20:09,655 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 22:20:09,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 10:20:08" (1/3) ... [2020-07-17 22:20:09,656 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c1e1c2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 10:20:09, skipping insertion in model container [2020-07-17 22:20:09,657 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:20:08" (2/3) ... [2020-07-17 22:20:09,657 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c1e1c2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 10:20:09, skipping insertion in model container [2020-07-17 22:20:09,658 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 10:20:09" (3/3) ... [2020-07-17 22:20:09,660 INFO L109 eAbstractionObserver]: Analyzing ICFG fibo_2calls_4-1.c [2020-07-17 22:20:09,675 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-17 22:20:09,683 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-17 22:20:09,701 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-17 22:20:09,728 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 22:20:09,729 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 22:20:09,729 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-17 22:20:09,729 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 22:20:09,729 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 22:20:09,730 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 22:20:09,730 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 22:20:09,730 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 22:20:09,756 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2020-07-17 22:20:09,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-07-17 22:20:09,771 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 22:20:09,772 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 22:20:09,773 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 22:20:09,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 22:20:09,784 INFO L82 PathProgramCache]: Analyzing trace with hash 1464461757, now seen corresponding path program 1 times [2020-07-17 22:20:09,795 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 22:20:09,796 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960542194] [2020-07-17 22:20:09,797 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 22:20:09,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:20:10,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:20:10,018 INFO L280 TraceCheckUtils]: 0: Hoare triple {36#true} assume true; {36#true} is VALID [2020-07-17 22:20:10,019 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {36#true} {36#true} #47#return; {36#true} is VALID [2020-07-17 22:20:10,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:20:10,106 INFO L280 TraceCheckUtils]: 0: Hoare triple {36#true} ~n := #in~n; {45#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-17 22:20:10,109 INFO L280 TraceCheckUtils]: 1: Hoare triple {45#(= fibo1_~n |fibo1_#in~n|)} assume ~n < 1;#res := 0; {46#(<= |fibo1_#in~n| 0)} is VALID [2020-07-17 22:20:10,110 INFO L280 TraceCheckUtils]: 2: Hoare triple {46#(<= |fibo1_#in~n| 0)} assume true; {46#(<= |fibo1_#in~n| 0)} is VALID [2020-07-17 22:20:10,113 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {46#(<= |fibo1_#in~n| 0)} {40#(<= 4 main_~x~0)} #51#return; {37#false} is VALID [2020-07-17 22:20:10,114 INFO L263 TraceCheckUtils]: 0: Hoare triple {36#true} call ULTIMATE.init(); {36#true} is VALID [2020-07-17 22:20:10,115 INFO L280 TraceCheckUtils]: 1: Hoare triple {36#true} assume true; {36#true} is VALID [2020-07-17 22:20:10,116 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {36#true} {36#true} #47#return; {36#true} is VALID [2020-07-17 22:20:10,116 INFO L263 TraceCheckUtils]: 3: Hoare triple {36#true} call #t~ret5 := main(); {36#true} is VALID [2020-07-17 22:20:10,118 INFO L280 TraceCheckUtils]: 4: Hoare triple {36#true} ~x~0 := 4; {40#(<= 4 main_~x~0)} is VALID [2020-07-17 22:20:10,119 INFO L263 TraceCheckUtils]: 5: Hoare triple {40#(<= 4 main_~x~0)} call #t~ret4 := fibo1(~x~0); {36#true} is VALID [2020-07-17 22:20:10,120 INFO L280 TraceCheckUtils]: 6: Hoare triple {36#true} ~n := #in~n; {45#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-17 22:20:10,122 INFO L280 TraceCheckUtils]: 7: Hoare triple {45#(= fibo1_~n |fibo1_#in~n|)} assume ~n < 1;#res := 0; {46#(<= |fibo1_#in~n| 0)} is VALID [2020-07-17 22:20:10,123 INFO L280 TraceCheckUtils]: 8: Hoare triple {46#(<= |fibo1_#in~n| 0)} assume true; {46#(<= |fibo1_#in~n| 0)} is VALID [2020-07-17 22:20:10,126 INFO L275 TraceCheckUtils]: 9: Hoare quadruple {46#(<= |fibo1_#in~n| 0)} {40#(<= 4 main_~x~0)} #51#return; {37#false} is VALID [2020-07-17 22:20:10,127 INFO L280 TraceCheckUtils]: 10: Hoare triple {37#false} assume -2147483648 <= #t~ret4 && #t~ret4 <= 2147483647;~result~0 := #t~ret4;havoc #t~ret4; {37#false} is VALID [2020-07-17 22:20:10,127 INFO L280 TraceCheckUtils]: 11: Hoare triple {37#false} assume 3 != ~result~0; {37#false} is VALID [2020-07-17 22:20:10,128 INFO L280 TraceCheckUtils]: 12: Hoare triple {37#false} assume !false; {37#false} is VALID [2020-07-17 22:20:10,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 22:20:10,131 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960542194] [2020-07-17 22:20:10,133 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 22:20:10,133 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-17 22:20:10,135 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618836716] [2020-07-17 22:20:10,141 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-07-17 22:20:10,144 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-17 22:20:10,147 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-17 22:20:10,184 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 13 edges. 13 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:20:10,184 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-17 22:20:10,185 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 22:20:10,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-17 22:20:10,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-17 22:20:10,198 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 5 states. [2020-07-17 22:20:10,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:20:10,535 INFO L93 Difference]: Finished difference Result 44 states and 53 transitions. [2020-07-17 22:20:10,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-17 22:20:10,535 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-07-17 22:20:10,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 22:20:10,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-17 22:20:10,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 53 transitions. [2020-07-17 22:20:10,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-17 22:20:10,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 53 transitions. [2020-07-17 22:20:10,574 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 53 transitions. [2020-07-17 22:20:10,673 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 53 edges. 53 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:20:10,688 INFO L225 Difference]: With dead ends: 44 [2020-07-17 22:20:10,688 INFO L226 Difference]: Without dead ends: 30 [2020-07-17 22:20:10,693 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-17 22:20:10,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-07-17 22:20:10,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-07-17 22:20:10,750 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-17 22:20:10,751 INFO L82 GeneralOperation]: Start isEquivalent. First operand 30 states. Second operand 30 states. [2020-07-17 22:20:10,751 INFO L74 IsIncluded]: Start isIncluded. First operand 30 states. Second operand 30 states. [2020-07-17 22:20:10,752 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 30 states. [2020-07-17 22:20:10,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:20:10,760 INFO L93 Difference]: Finished difference Result 30 states and 37 transitions. [2020-07-17 22:20:10,760 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2020-07-17 22:20:10,761 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:20:10,762 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:20:10,762 INFO L74 IsIncluded]: Start isIncluded. First operand 30 states. Second operand 30 states. [2020-07-17 22:20:10,762 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 30 states. [2020-07-17 22:20:10,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:20:10,787 INFO L93 Difference]: Finished difference Result 30 states and 37 transitions. [2020-07-17 22:20:10,787 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2020-07-17 22:20:10,788 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:20:10,788 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:20:10,789 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-17 22:20:10,789 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-17 22:20:10,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-07-17 22:20:10,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 37 transitions. [2020-07-17 22:20:10,798 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 37 transitions. Word has length 13 [2020-07-17 22:20:10,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 22:20:10,798 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 37 transitions. [2020-07-17 22:20:10,799 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-17 22:20:10,799 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2020-07-17 22:20:10,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-07-17 22:20:10,803 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 22:20:10,803 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 22:20:10,804 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-17 22:20:10,804 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 22:20:10,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 22:20:10,805 INFO L82 PathProgramCache]: Analyzing trace with hash -1134800479, now seen corresponding path program 1 times [2020-07-17 22:20:10,805 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 22:20:10,805 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014496279] [2020-07-17 22:20:10,806 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 22:20:10,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:20:10,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:20:10,844 INFO L280 TraceCheckUtils]: 0: Hoare triple {207#true} assume true; {207#true} is VALID [2020-07-17 22:20:10,845 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {207#true} {207#true} #47#return; {207#true} is VALID [2020-07-17 22:20:10,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:20:10,886 INFO L280 TraceCheckUtils]: 0: Hoare triple {207#true} ~n := #in~n; {217#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-17 22:20:10,887 INFO L280 TraceCheckUtils]: 1: Hoare triple {217#(= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {217#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-17 22:20:10,888 INFO L280 TraceCheckUtils]: 2: Hoare triple {217#(= fibo1_~n |fibo1_#in~n|)} assume 1 == ~n;#res := 1; {218#(<= |fibo1_#in~n| 1)} is VALID [2020-07-17 22:20:10,888 INFO L280 TraceCheckUtils]: 3: Hoare triple {218#(<= |fibo1_#in~n| 1)} assume true; {218#(<= |fibo1_#in~n| 1)} is VALID [2020-07-17 22:20:10,890 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {218#(<= |fibo1_#in~n| 1)} {211#(<= 4 main_~x~0)} #51#return; {208#false} is VALID [2020-07-17 22:20:10,890 INFO L263 TraceCheckUtils]: 0: Hoare triple {207#true} call ULTIMATE.init(); {207#true} is VALID [2020-07-17 22:20:10,891 INFO L280 TraceCheckUtils]: 1: Hoare triple {207#true} assume true; {207#true} is VALID [2020-07-17 22:20:10,891 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {207#true} {207#true} #47#return; {207#true} is VALID [2020-07-17 22:20:10,891 INFO L263 TraceCheckUtils]: 3: Hoare triple {207#true} call #t~ret5 := main(); {207#true} is VALID [2020-07-17 22:20:10,892 INFO L280 TraceCheckUtils]: 4: Hoare triple {207#true} ~x~0 := 4; {211#(<= 4 main_~x~0)} is VALID [2020-07-17 22:20:10,893 INFO L263 TraceCheckUtils]: 5: Hoare triple {211#(<= 4 main_~x~0)} call #t~ret4 := fibo1(~x~0); {207#true} is VALID [2020-07-17 22:20:10,894 INFO L280 TraceCheckUtils]: 6: Hoare triple {207#true} ~n := #in~n; {217#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-17 22:20:10,894 INFO L280 TraceCheckUtils]: 7: Hoare triple {217#(= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {217#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-17 22:20:10,895 INFO L280 TraceCheckUtils]: 8: Hoare triple {217#(= fibo1_~n |fibo1_#in~n|)} assume 1 == ~n;#res := 1; {218#(<= |fibo1_#in~n| 1)} is VALID [2020-07-17 22:20:10,896 INFO L280 TraceCheckUtils]: 9: Hoare triple {218#(<= |fibo1_#in~n| 1)} assume true; {218#(<= |fibo1_#in~n| 1)} is VALID [2020-07-17 22:20:10,897 INFO L275 TraceCheckUtils]: 10: Hoare quadruple {218#(<= |fibo1_#in~n| 1)} {211#(<= 4 main_~x~0)} #51#return; {208#false} is VALID [2020-07-17 22:20:10,898 INFO L280 TraceCheckUtils]: 11: Hoare triple {208#false} assume -2147483648 <= #t~ret4 && #t~ret4 <= 2147483647;~result~0 := #t~ret4;havoc #t~ret4; {208#false} is VALID [2020-07-17 22:20:10,898 INFO L280 TraceCheckUtils]: 12: Hoare triple {208#false} assume 3 != ~result~0; {208#false} is VALID [2020-07-17 22:20:10,898 INFO L280 TraceCheckUtils]: 13: Hoare triple {208#false} assume !false; {208#false} is VALID [2020-07-17 22:20:10,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 22:20:10,900 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014496279] [2020-07-17 22:20:10,901 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 22:20:10,901 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-17 22:20:10,901 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308003573] [2020-07-17 22:20:10,903 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-07-17 22:20:10,903 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-17 22:20:10,904 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-17 22:20:10,922 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 14 edges. 14 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:20:10,922 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-17 22:20:10,922 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 22:20:10,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-17 22:20:10,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-17 22:20:10,923 INFO L87 Difference]: Start difference. First operand 30 states and 37 transitions. Second operand 5 states. [2020-07-17 22:20:11,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:20:11,129 INFO L93 Difference]: Finished difference Result 36 states and 44 transitions. [2020-07-17 22:20:11,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-17 22:20:11,129 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-07-17 22:20:11,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 22:20:11,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-17 22:20:11,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 41 transitions. [2020-07-17 22:20:11,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-17 22:20:11,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 41 transitions. [2020-07-17 22:20:11,137 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 41 transitions. [2020-07-17 22:20:11,202 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 41 edges. 41 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:20:11,205 INFO L225 Difference]: With dead ends: 36 [2020-07-17 22:20:11,206 INFO L226 Difference]: Without dead ends: 32 [2020-07-17 22:20:11,207 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-17 22:20:11,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-07-17 22:20:11,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 30. [2020-07-17 22:20:11,224 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-17 22:20:11,224 INFO L82 GeneralOperation]: Start isEquivalent. First operand 32 states. Second operand 30 states. [2020-07-17 22:20:11,224 INFO L74 IsIncluded]: Start isIncluded. First operand 32 states. Second operand 30 states. [2020-07-17 22:20:11,225 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 30 states. [2020-07-17 22:20:11,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:20:11,230 INFO L93 Difference]: Finished difference Result 32 states and 40 transitions. [2020-07-17 22:20:11,230 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 40 transitions. [2020-07-17 22:20:11,231 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:20:11,231 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:20:11,231 INFO L74 IsIncluded]: Start isIncluded. First operand 30 states. Second operand 32 states. [2020-07-17 22:20:11,231 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 32 states. [2020-07-17 22:20:11,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:20:11,237 INFO L93 Difference]: Finished difference Result 32 states and 40 transitions. [2020-07-17 22:20:11,237 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 40 transitions. [2020-07-17 22:20:11,238 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:20:11,239 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:20:11,239 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-17 22:20:11,239 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-17 22:20:11,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-07-17 22:20:11,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 37 transitions. [2020-07-17 22:20:11,244 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 37 transitions. Word has length 14 [2020-07-17 22:20:11,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 22:20:11,244 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 37 transitions. [2020-07-17 22:20:11,244 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-17 22:20:11,244 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2020-07-17 22:20:11,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-07-17 22:20:11,247 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 22:20:11,247 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 22:20:11,247 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-17 22:20:11,248 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 22:20:11,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 22:20:11,248 INFO L82 PathProgramCache]: Analyzing trace with hash -1592795560, now seen corresponding path program 1 times [2020-07-17 22:20:11,249 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 22:20:11,249 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223788335] [2020-07-17 22:20:11,249 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 22:20:11,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:20:11,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:20:11,314 INFO L280 TraceCheckUtils]: 0: Hoare triple {375#true} assume true; {375#true} is VALID [2020-07-17 22:20:11,315 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {375#true} {375#true} #47#return; {375#true} is VALID [2020-07-17 22:20:11,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:20:11,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:20:11,463 INFO L280 TraceCheckUtils]: 0: Hoare triple {375#true} ~n := #in~n; {407#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-17 22:20:11,464 INFO L280 TraceCheckUtils]: 1: Hoare triple {407#(= fibo2_~n |fibo2_#in~n|)} assume ~n < 1;#res := 0; {408#(<= |fibo2_#in~n| 0)} is VALID [2020-07-17 22:20:11,465 INFO L280 TraceCheckUtils]: 2: Hoare triple {408#(<= |fibo2_#in~n| 0)} assume true; {408#(<= |fibo2_#in~n| 0)} is VALID [2020-07-17 22:20:11,467 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {408#(<= |fibo2_#in~n| 0)} {398#(< 1 fibo1_~n)} #57#return; {376#false} is VALID [2020-07-17 22:20:11,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:20:11,488 INFO L280 TraceCheckUtils]: 0: Hoare triple {375#true} ~n := #in~n; {375#true} is VALID [2020-07-17 22:20:11,489 INFO L280 TraceCheckUtils]: 1: Hoare triple {375#true} assume ~n < 1;#res := 0; {375#true} is VALID [2020-07-17 22:20:11,489 INFO L280 TraceCheckUtils]: 2: Hoare triple {375#true} assume true; {375#true} is VALID [2020-07-17 22:20:11,490 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {375#true} {376#false} #59#return; {376#false} is VALID [2020-07-17 22:20:11,490 INFO L280 TraceCheckUtils]: 0: Hoare triple {375#true} ~n := #in~n; {375#true} is VALID [2020-07-17 22:20:11,496 INFO L280 TraceCheckUtils]: 1: Hoare triple {375#true} assume !(~n < 1); {397#(< 0 fibo1_~n)} is VALID [2020-07-17 22:20:11,497 INFO L280 TraceCheckUtils]: 2: Hoare triple {397#(< 0 fibo1_~n)} assume !(1 == ~n); {398#(< 1 fibo1_~n)} is VALID [2020-07-17 22:20:11,498 INFO L263 TraceCheckUtils]: 3: Hoare triple {398#(< 1 fibo1_~n)} call #t~ret0 := fibo2(~n - 1); {375#true} is VALID [2020-07-17 22:20:11,499 INFO L280 TraceCheckUtils]: 4: Hoare triple {375#true} ~n := #in~n; {407#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-17 22:20:11,500 INFO L280 TraceCheckUtils]: 5: Hoare triple {407#(= fibo2_~n |fibo2_#in~n|)} assume ~n < 1;#res := 0; {408#(<= |fibo2_#in~n| 0)} is VALID [2020-07-17 22:20:11,501 INFO L280 TraceCheckUtils]: 6: Hoare triple {408#(<= |fibo2_#in~n| 0)} assume true; {408#(<= |fibo2_#in~n| 0)} is VALID [2020-07-17 22:20:11,502 INFO L275 TraceCheckUtils]: 7: Hoare quadruple {408#(<= |fibo2_#in~n| 0)} {398#(< 1 fibo1_~n)} #57#return; {376#false} is VALID [2020-07-17 22:20:11,503 INFO L280 TraceCheckUtils]: 8: Hoare triple {376#false} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {376#false} is VALID [2020-07-17 22:20:11,503 INFO L263 TraceCheckUtils]: 9: Hoare triple {376#false} call #t~ret1 := fibo2(~n - 2); {375#true} is VALID [2020-07-17 22:20:11,504 INFO L280 TraceCheckUtils]: 10: Hoare triple {375#true} ~n := #in~n; {375#true} is VALID [2020-07-17 22:20:11,504 INFO L280 TraceCheckUtils]: 11: Hoare triple {375#true} assume ~n < 1;#res := 0; {375#true} is VALID [2020-07-17 22:20:11,504 INFO L280 TraceCheckUtils]: 12: Hoare triple {375#true} assume true; {375#true} is VALID [2020-07-17 22:20:11,505 INFO L275 TraceCheckUtils]: 13: Hoare quadruple {375#true} {376#false} #59#return; {376#false} is VALID [2020-07-17 22:20:11,505 INFO L280 TraceCheckUtils]: 14: Hoare triple {376#false} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647;#res := #t~ret0 + #t~ret1;havoc #t~ret1;havoc #t~ret0; {376#false} is VALID [2020-07-17 22:20:11,505 INFO L280 TraceCheckUtils]: 15: Hoare triple {376#false} assume true; {376#false} is VALID [2020-07-17 22:20:11,506 INFO L275 TraceCheckUtils]: 16: Hoare quadruple {376#false} {379#(<= 4 main_~x~0)} #51#return; {376#false} is VALID [2020-07-17 22:20:11,515 INFO L263 TraceCheckUtils]: 0: Hoare triple {375#true} call ULTIMATE.init(); {375#true} is VALID [2020-07-17 22:20:11,515 INFO L280 TraceCheckUtils]: 1: Hoare triple {375#true} assume true; {375#true} is VALID [2020-07-17 22:20:11,516 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {375#true} {375#true} #47#return; {375#true} is VALID [2020-07-17 22:20:11,516 INFO L263 TraceCheckUtils]: 3: Hoare triple {375#true} call #t~ret5 := main(); {375#true} is VALID [2020-07-17 22:20:11,518 INFO L280 TraceCheckUtils]: 4: Hoare triple {375#true} ~x~0 := 4; {379#(<= 4 main_~x~0)} is VALID [2020-07-17 22:20:11,518 INFO L263 TraceCheckUtils]: 5: Hoare triple {379#(<= 4 main_~x~0)} call #t~ret4 := fibo1(~x~0); {375#true} is VALID [2020-07-17 22:20:11,518 INFO L280 TraceCheckUtils]: 6: Hoare triple {375#true} ~n := #in~n; {375#true} is VALID [2020-07-17 22:20:11,519 INFO L280 TraceCheckUtils]: 7: Hoare triple {375#true} assume !(~n < 1); {397#(< 0 fibo1_~n)} is VALID [2020-07-17 22:20:11,520 INFO L280 TraceCheckUtils]: 8: Hoare triple {397#(< 0 fibo1_~n)} assume !(1 == ~n); {398#(< 1 fibo1_~n)} is VALID [2020-07-17 22:20:11,521 INFO L263 TraceCheckUtils]: 9: Hoare triple {398#(< 1 fibo1_~n)} call #t~ret0 := fibo2(~n - 1); {375#true} is VALID [2020-07-17 22:20:11,522 INFO L280 TraceCheckUtils]: 10: Hoare triple {375#true} ~n := #in~n; {407#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-17 22:20:11,523 INFO L280 TraceCheckUtils]: 11: Hoare triple {407#(= fibo2_~n |fibo2_#in~n|)} assume ~n < 1;#res := 0; {408#(<= |fibo2_#in~n| 0)} is VALID [2020-07-17 22:20:11,525 INFO L280 TraceCheckUtils]: 12: Hoare triple {408#(<= |fibo2_#in~n| 0)} assume true; {408#(<= |fibo2_#in~n| 0)} is VALID [2020-07-17 22:20:11,531 INFO L275 TraceCheckUtils]: 13: Hoare quadruple {408#(<= |fibo2_#in~n| 0)} {398#(< 1 fibo1_~n)} #57#return; {376#false} is VALID [2020-07-17 22:20:11,532 INFO L280 TraceCheckUtils]: 14: Hoare triple {376#false} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {376#false} is VALID [2020-07-17 22:20:11,532 INFO L263 TraceCheckUtils]: 15: Hoare triple {376#false} call #t~ret1 := fibo2(~n - 2); {375#true} is VALID [2020-07-17 22:20:11,533 INFO L280 TraceCheckUtils]: 16: Hoare triple {375#true} ~n := #in~n; {375#true} is VALID [2020-07-17 22:20:11,533 INFO L280 TraceCheckUtils]: 17: Hoare triple {375#true} assume ~n < 1;#res := 0; {375#true} is VALID [2020-07-17 22:20:11,533 INFO L280 TraceCheckUtils]: 18: Hoare triple {375#true} assume true; {375#true} is VALID [2020-07-17 22:20:11,534 INFO L275 TraceCheckUtils]: 19: Hoare quadruple {375#true} {376#false} #59#return; {376#false} is VALID [2020-07-17 22:20:11,534 INFO L280 TraceCheckUtils]: 20: Hoare triple {376#false} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647;#res := #t~ret0 + #t~ret1;havoc #t~ret1;havoc #t~ret0; {376#false} is VALID [2020-07-17 22:20:11,540 INFO L280 TraceCheckUtils]: 21: Hoare triple {376#false} assume true; {376#false} is VALID [2020-07-17 22:20:11,540 INFO L275 TraceCheckUtils]: 22: Hoare quadruple {376#false} {379#(<= 4 main_~x~0)} #51#return; {376#false} is VALID [2020-07-17 22:20:11,540 INFO L280 TraceCheckUtils]: 23: Hoare triple {376#false} assume -2147483648 <= #t~ret4 && #t~ret4 <= 2147483647;~result~0 := #t~ret4;havoc #t~ret4; {376#false} is VALID [2020-07-17 22:20:11,541 INFO L280 TraceCheckUtils]: 24: Hoare triple {376#false} assume 3 != ~result~0; {376#false} is VALID [2020-07-17 22:20:11,541 INFO L280 TraceCheckUtils]: 25: Hoare triple {376#false} assume !false; {376#false} is VALID [2020-07-17 22:20:11,544 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-17 22:20:11,545 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223788335] [2020-07-17 22:20:11,545 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [142809913] [2020-07-17 22:20:11,546 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 22:20:11,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:20:11,588 INFO L264 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-17 22:20:11,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:20:11,604 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-17 22:20:11,801 INFO L263 TraceCheckUtils]: 0: Hoare triple {375#true} call ULTIMATE.init(); {375#true} is VALID [2020-07-17 22:20:11,801 INFO L280 TraceCheckUtils]: 1: Hoare triple {375#true} assume true; {375#true} is VALID [2020-07-17 22:20:11,802 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {375#true} {375#true} #47#return; {375#true} is VALID [2020-07-17 22:20:11,802 INFO L263 TraceCheckUtils]: 3: Hoare triple {375#true} call #t~ret5 := main(); {375#true} is VALID [2020-07-17 22:20:11,803 INFO L280 TraceCheckUtils]: 4: Hoare triple {375#true} ~x~0 := 4; {379#(<= 4 main_~x~0)} is VALID [2020-07-17 22:20:11,803 INFO L263 TraceCheckUtils]: 5: Hoare triple {379#(<= 4 main_~x~0)} call #t~ret4 := fibo1(~x~0); {375#true} is VALID [2020-07-17 22:20:11,805 INFO L280 TraceCheckUtils]: 6: Hoare triple {375#true} ~n := #in~n; {430#(<= |fibo1_#in~n| fibo1_~n)} is VALID [2020-07-17 22:20:11,806 INFO L280 TraceCheckUtils]: 7: Hoare triple {430#(<= |fibo1_#in~n| fibo1_~n)} assume !(~n < 1); {430#(<= |fibo1_#in~n| fibo1_~n)} is VALID [2020-07-17 22:20:11,807 INFO L280 TraceCheckUtils]: 8: Hoare triple {430#(<= |fibo1_#in~n| fibo1_~n)} assume !(1 == ~n); {430#(<= |fibo1_#in~n| fibo1_~n)} is VALID [2020-07-17 22:20:11,807 INFO L263 TraceCheckUtils]: 9: Hoare triple {430#(<= |fibo1_#in~n| fibo1_~n)} call #t~ret0 := fibo2(~n - 1); {375#true} is VALID [2020-07-17 22:20:11,815 INFO L280 TraceCheckUtils]: 10: Hoare triple {375#true} ~n := #in~n; {443#(<= |fibo2_#in~n| fibo2_~n)} is VALID [2020-07-17 22:20:11,816 INFO L280 TraceCheckUtils]: 11: Hoare triple {443#(<= |fibo2_#in~n| fibo2_~n)} assume ~n < 1;#res := 0; {408#(<= |fibo2_#in~n| 0)} is VALID [2020-07-17 22:20:11,817 INFO L280 TraceCheckUtils]: 12: Hoare triple {408#(<= |fibo2_#in~n| 0)} assume true; {408#(<= |fibo2_#in~n| 0)} is VALID [2020-07-17 22:20:11,819 INFO L275 TraceCheckUtils]: 13: Hoare quadruple {408#(<= |fibo2_#in~n| 0)} {430#(<= |fibo1_#in~n| fibo1_~n)} #57#return; {453#(<= |fibo1_#in~n| 1)} is VALID [2020-07-17 22:20:11,820 INFO L280 TraceCheckUtils]: 14: Hoare triple {453#(<= |fibo1_#in~n| 1)} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {453#(<= |fibo1_#in~n| 1)} is VALID [2020-07-17 22:20:11,820 INFO L263 TraceCheckUtils]: 15: Hoare triple {453#(<= |fibo1_#in~n| 1)} call #t~ret1 := fibo2(~n - 2); {375#true} is VALID [2020-07-17 22:20:11,820 INFO L280 TraceCheckUtils]: 16: Hoare triple {375#true} ~n := #in~n; {375#true} is VALID [2020-07-17 22:20:11,821 INFO L280 TraceCheckUtils]: 17: Hoare triple {375#true} assume ~n < 1;#res := 0; {375#true} is VALID [2020-07-17 22:20:11,821 INFO L280 TraceCheckUtils]: 18: Hoare triple {375#true} assume true; {375#true} is VALID [2020-07-17 22:20:11,822 INFO L275 TraceCheckUtils]: 19: Hoare quadruple {375#true} {453#(<= |fibo1_#in~n| 1)} #59#return; {453#(<= |fibo1_#in~n| 1)} is VALID [2020-07-17 22:20:11,823 INFO L280 TraceCheckUtils]: 20: Hoare triple {453#(<= |fibo1_#in~n| 1)} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647;#res := #t~ret0 + #t~ret1;havoc #t~ret1;havoc #t~ret0; {453#(<= |fibo1_#in~n| 1)} is VALID [2020-07-17 22:20:11,824 INFO L280 TraceCheckUtils]: 21: Hoare triple {453#(<= |fibo1_#in~n| 1)} assume true; {453#(<= |fibo1_#in~n| 1)} is VALID [2020-07-17 22:20:11,826 INFO L275 TraceCheckUtils]: 22: Hoare quadruple {453#(<= |fibo1_#in~n| 1)} {379#(<= 4 main_~x~0)} #51#return; {376#false} is VALID [2020-07-17 22:20:11,826 INFO L280 TraceCheckUtils]: 23: Hoare triple {376#false} assume -2147483648 <= #t~ret4 && #t~ret4 <= 2147483647;~result~0 := #t~ret4;havoc #t~ret4; {376#false} is VALID [2020-07-17 22:20:11,826 INFO L280 TraceCheckUtils]: 24: Hoare triple {376#false} assume 3 != ~result~0; {376#false} is VALID [2020-07-17 22:20:11,827 INFO L280 TraceCheckUtils]: 25: Hoare triple {376#false} assume !false; {376#false} is VALID [2020-07-17 22:20:11,830 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-17 22:20:11,831 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-17 22:20:11,831 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2020-07-17 22:20:11,831 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545784606] [2020-07-17 22:20:11,832 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 26 [2020-07-17 22:20:11,833 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-17 22:20:11,834 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 10 states. [2020-07-17 22:20:11,890 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 39 edges. 39 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:20:11,890 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-17 22:20:11,890 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 22:20:11,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-17 22:20:11,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-07-17 22:20:11,892 INFO L87 Difference]: Start difference. First operand 30 states and 37 transitions. Second operand 10 states. [2020-07-17 22:20:12,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:20:12,576 INFO L93 Difference]: Finished difference Result 58 states and 78 transitions. [2020-07-17 22:20:12,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-17 22:20:12,576 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 26 [2020-07-17 22:20:12,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 22:20:12,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-07-17 22:20:12,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 75 transitions. [2020-07-17 22:20:12,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-07-17 22:20:12,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 75 transitions. [2020-07-17 22:20:12,587 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 10 states and 75 transitions. [2020-07-17 22:20:12,701 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 75 edges. 75 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:20:12,704 INFO L225 Difference]: With dead ends: 58 [2020-07-17 22:20:12,704 INFO L226 Difference]: Without dead ends: 34 [2020-07-17 22:20:12,706 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2020-07-17 22:20:12,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-07-17 22:20:12,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 32. [2020-07-17 22:20:12,723 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-17 22:20:12,723 INFO L82 GeneralOperation]: Start isEquivalent. First operand 34 states. Second operand 32 states. [2020-07-17 22:20:12,723 INFO L74 IsIncluded]: Start isIncluded. First operand 34 states. Second operand 32 states. [2020-07-17 22:20:12,723 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 32 states. [2020-07-17 22:20:12,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:20:12,729 INFO L93 Difference]: Finished difference Result 34 states and 42 transitions. [2020-07-17 22:20:12,730 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 42 transitions. [2020-07-17 22:20:12,731 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:20:12,731 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:20:12,731 INFO L74 IsIncluded]: Start isIncluded. First operand 32 states. Second operand 34 states. [2020-07-17 22:20:12,731 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 34 states. [2020-07-17 22:20:12,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:20:12,741 INFO L93 Difference]: Finished difference Result 34 states and 42 transitions. [2020-07-17 22:20:12,741 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 42 transitions. [2020-07-17 22:20:12,745 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:20:12,745 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:20:12,745 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-17 22:20:12,745 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-17 22:20:12,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-07-17 22:20:12,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 39 transitions. [2020-07-17 22:20:12,751 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 39 transitions. Word has length 26 [2020-07-17 22:20:12,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 22:20:12,752 INFO L479 AbstractCegarLoop]: Abstraction has 32 states and 39 transitions. [2020-07-17 22:20:12,752 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-17 22:20:12,752 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 39 transitions. [2020-07-17 22:20:12,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-07-17 22:20:12,757 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 22:20:12,757 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 22:20:12,962 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-07-17 22:20:12,963 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 22:20:12,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 22:20:12,964 INFO L82 PathProgramCache]: Analyzing trace with hash 746633022, now seen corresponding path program 1 times [2020-07-17 22:20:12,964 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 22:20:12,965 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950158805] [2020-07-17 22:20:12,965 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 22:20:12,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:20:13,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:20:13,019 INFO L280 TraceCheckUtils]: 0: Hoare triple {685#true} assume true; {685#true} is VALID [2020-07-17 22:20:13,019 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {685#true} {685#true} #47#return; {685#true} is VALID [2020-07-17 22:20:13,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:20:13,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:20:13,124 INFO L280 TraceCheckUtils]: 0: Hoare triple {685#true} ~n := #in~n; {719#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-17 22:20:13,125 INFO L280 TraceCheckUtils]: 1: Hoare triple {719#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {719#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-17 22:20:13,126 INFO L280 TraceCheckUtils]: 2: Hoare triple {719#(= fibo2_~n |fibo2_#in~n|)} assume 1 == ~n;#res := 1; {720#(<= |fibo2_#in~n| 1)} is VALID [2020-07-17 22:20:13,127 INFO L280 TraceCheckUtils]: 3: Hoare triple {720#(<= |fibo2_#in~n| 1)} assume true; {720#(<= |fibo2_#in~n| 1)} is VALID [2020-07-17 22:20:13,129 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {720#(<= |fibo2_#in~n| 1)} {708#(= fibo1_~n |fibo1_#in~n|)} #57#return; {714#(<= |fibo1_#in~n| 2)} is VALID [2020-07-17 22:20:13,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:20:13,137 INFO L280 TraceCheckUtils]: 0: Hoare triple {685#true} ~n := #in~n; {685#true} is VALID [2020-07-17 22:20:13,138 INFO L280 TraceCheckUtils]: 1: Hoare triple {685#true} assume ~n < 1;#res := 0; {685#true} is VALID [2020-07-17 22:20:13,138 INFO L280 TraceCheckUtils]: 2: Hoare triple {685#true} assume true; {685#true} is VALID [2020-07-17 22:20:13,140 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {685#true} {714#(<= |fibo1_#in~n| 2)} #59#return; {714#(<= |fibo1_#in~n| 2)} is VALID [2020-07-17 22:20:13,140 INFO L280 TraceCheckUtils]: 0: Hoare triple {685#true} ~n := #in~n; {708#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-17 22:20:13,143 INFO L280 TraceCheckUtils]: 1: Hoare triple {708#(= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {708#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-17 22:20:13,144 INFO L280 TraceCheckUtils]: 2: Hoare triple {708#(= fibo1_~n |fibo1_#in~n|)} assume !(1 == ~n); {708#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-17 22:20:13,145 INFO L263 TraceCheckUtils]: 3: Hoare triple {708#(= fibo1_~n |fibo1_#in~n|)} call #t~ret0 := fibo2(~n - 1); {685#true} is VALID [2020-07-17 22:20:13,146 INFO L280 TraceCheckUtils]: 4: Hoare triple {685#true} ~n := #in~n; {719#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-17 22:20:13,146 INFO L280 TraceCheckUtils]: 5: Hoare triple {719#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {719#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-17 22:20:13,147 INFO L280 TraceCheckUtils]: 6: Hoare triple {719#(= fibo2_~n |fibo2_#in~n|)} assume 1 == ~n;#res := 1; {720#(<= |fibo2_#in~n| 1)} is VALID [2020-07-17 22:20:13,148 INFO L280 TraceCheckUtils]: 7: Hoare triple {720#(<= |fibo2_#in~n| 1)} assume true; {720#(<= |fibo2_#in~n| 1)} is VALID [2020-07-17 22:20:13,149 INFO L275 TraceCheckUtils]: 8: Hoare quadruple {720#(<= |fibo2_#in~n| 1)} {708#(= fibo1_~n |fibo1_#in~n|)} #57#return; {714#(<= |fibo1_#in~n| 2)} is VALID [2020-07-17 22:20:13,150 INFO L280 TraceCheckUtils]: 9: Hoare triple {714#(<= |fibo1_#in~n| 2)} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {714#(<= |fibo1_#in~n| 2)} is VALID [2020-07-17 22:20:13,150 INFO L263 TraceCheckUtils]: 10: Hoare triple {714#(<= |fibo1_#in~n| 2)} call #t~ret1 := fibo2(~n - 2); {685#true} is VALID [2020-07-17 22:20:13,151 INFO L280 TraceCheckUtils]: 11: Hoare triple {685#true} ~n := #in~n; {685#true} is VALID [2020-07-17 22:20:13,151 INFO L280 TraceCheckUtils]: 12: Hoare triple {685#true} assume ~n < 1;#res := 0; {685#true} is VALID [2020-07-17 22:20:13,151 INFO L280 TraceCheckUtils]: 13: Hoare triple {685#true} assume true; {685#true} is VALID [2020-07-17 22:20:13,152 INFO L275 TraceCheckUtils]: 14: Hoare quadruple {685#true} {714#(<= |fibo1_#in~n| 2)} #59#return; {714#(<= |fibo1_#in~n| 2)} is VALID [2020-07-17 22:20:13,153 INFO L280 TraceCheckUtils]: 15: Hoare triple {714#(<= |fibo1_#in~n| 2)} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647;#res := #t~ret0 + #t~ret1;havoc #t~ret1;havoc #t~ret0; {714#(<= |fibo1_#in~n| 2)} is VALID [2020-07-17 22:20:13,154 INFO L280 TraceCheckUtils]: 16: Hoare triple {714#(<= |fibo1_#in~n| 2)} assume true; {714#(<= |fibo1_#in~n| 2)} is VALID [2020-07-17 22:20:13,155 INFO L275 TraceCheckUtils]: 17: Hoare quadruple {714#(<= |fibo1_#in~n| 2)} {689#(<= 4 main_~x~0)} #51#return; {686#false} is VALID [2020-07-17 22:20:13,156 INFO L263 TraceCheckUtils]: 0: Hoare triple {685#true} call ULTIMATE.init(); {685#true} is VALID [2020-07-17 22:20:13,156 INFO L280 TraceCheckUtils]: 1: Hoare triple {685#true} assume true; {685#true} is VALID [2020-07-17 22:20:13,156 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {685#true} {685#true} #47#return; {685#true} is VALID [2020-07-17 22:20:13,157 INFO L263 TraceCheckUtils]: 3: Hoare triple {685#true} call #t~ret5 := main(); {685#true} is VALID [2020-07-17 22:20:13,157 INFO L280 TraceCheckUtils]: 4: Hoare triple {685#true} ~x~0 := 4; {689#(<= 4 main_~x~0)} is VALID [2020-07-17 22:20:13,158 INFO L263 TraceCheckUtils]: 5: Hoare triple {689#(<= 4 main_~x~0)} call #t~ret4 := fibo1(~x~0); {685#true} is VALID [2020-07-17 22:20:13,158 INFO L280 TraceCheckUtils]: 6: Hoare triple {685#true} ~n := #in~n; {708#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-17 22:20:13,159 INFO L280 TraceCheckUtils]: 7: Hoare triple {708#(= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {708#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-17 22:20:13,159 INFO L280 TraceCheckUtils]: 8: Hoare triple {708#(= fibo1_~n |fibo1_#in~n|)} assume !(1 == ~n); {708#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-17 22:20:13,160 INFO L263 TraceCheckUtils]: 9: Hoare triple {708#(= fibo1_~n |fibo1_#in~n|)} call #t~ret0 := fibo2(~n - 1); {685#true} is VALID [2020-07-17 22:20:13,160 INFO L280 TraceCheckUtils]: 10: Hoare triple {685#true} ~n := #in~n; {719#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-17 22:20:13,161 INFO L280 TraceCheckUtils]: 11: Hoare triple {719#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {719#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-17 22:20:13,162 INFO L280 TraceCheckUtils]: 12: Hoare triple {719#(= fibo2_~n |fibo2_#in~n|)} assume 1 == ~n;#res := 1; {720#(<= |fibo2_#in~n| 1)} is VALID [2020-07-17 22:20:13,162 INFO L280 TraceCheckUtils]: 13: Hoare triple {720#(<= |fibo2_#in~n| 1)} assume true; {720#(<= |fibo2_#in~n| 1)} is VALID [2020-07-17 22:20:13,164 INFO L275 TraceCheckUtils]: 14: Hoare quadruple {720#(<= |fibo2_#in~n| 1)} {708#(= fibo1_~n |fibo1_#in~n|)} #57#return; {714#(<= |fibo1_#in~n| 2)} is VALID [2020-07-17 22:20:13,165 INFO L280 TraceCheckUtils]: 15: Hoare triple {714#(<= |fibo1_#in~n| 2)} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {714#(<= |fibo1_#in~n| 2)} is VALID [2020-07-17 22:20:13,165 INFO L263 TraceCheckUtils]: 16: Hoare triple {714#(<= |fibo1_#in~n| 2)} call #t~ret1 := fibo2(~n - 2); {685#true} is VALID [2020-07-17 22:20:13,165 INFO L280 TraceCheckUtils]: 17: Hoare triple {685#true} ~n := #in~n; {685#true} is VALID [2020-07-17 22:20:13,166 INFO L280 TraceCheckUtils]: 18: Hoare triple {685#true} assume ~n < 1;#res := 0; {685#true} is VALID [2020-07-17 22:20:13,166 INFO L280 TraceCheckUtils]: 19: Hoare triple {685#true} assume true; {685#true} is VALID [2020-07-17 22:20:13,167 INFO L275 TraceCheckUtils]: 20: Hoare quadruple {685#true} {714#(<= |fibo1_#in~n| 2)} #59#return; {714#(<= |fibo1_#in~n| 2)} is VALID [2020-07-17 22:20:13,168 INFO L280 TraceCheckUtils]: 21: Hoare triple {714#(<= |fibo1_#in~n| 2)} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647;#res := #t~ret0 + #t~ret1;havoc #t~ret1;havoc #t~ret0; {714#(<= |fibo1_#in~n| 2)} is VALID [2020-07-17 22:20:13,168 INFO L280 TraceCheckUtils]: 22: Hoare triple {714#(<= |fibo1_#in~n| 2)} assume true; {714#(<= |fibo1_#in~n| 2)} is VALID [2020-07-17 22:20:13,169 INFO L275 TraceCheckUtils]: 23: Hoare quadruple {714#(<= |fibo1_#in~n| 2)} {689#(<= 4 main_~x~0)} #51#return; {686#false} is VALID [2020-07-17 22:20:13,170 INFO L280 TraceCheckUtils]: 24: Hoare triple {686#false} assume -2147483648 <= #t~ret4 && #t~ret4 <= 2147483647;~result~0 := #t~ret4;havoc #t~ret4; {686#false} is VALID [2020-07-17 22:20:13,170 INFO L280 TraceCheckUtils]: 25: Hoare triple {686#false} assume 3 != ~result~0; {686#false} is VALID [2020-07-17 22:20:13,170 INFO L280 TraceCheckUtils]: 26: Hoare triple {686#false} assume !false; {686#false} is VALID [2020-07-17 22:20:13,171 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-17 22:20:13,172 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950158805] [2020-07-17 22:20:13,172 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [16536670] [2020-07-17 22:20:13,181 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 22:20:13,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:20:13,208 INFO L264 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-17 22:20:13,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:20:13,218 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-17 22:20:13,315 INFO L263 TraceCheckUtils]: 0: Hoare triple {685#true} call ULTIMATE.init(); {685#true} is VALID [2020-07-17 22:20:13,315 INFO L280 TraceCheckUtils]: 1: Hoare triple {685#true} assume true; {685#true} is VALID [2020-07-17 22:20:13,316 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {685#true} {685#true} #47#return; {685#true} is VALID [2020-07-17 22:20:13,316 INFO L263 TraceCheckUtils]: 3: Hoare triple {685#true} call #t~ret5 := main(); {685#true} is VALID [2020-07-17 22:20:13,317 INFO L280 TraceCheckUtils]: 4: Hoare triple {685#true} ~x~0 := 4; {689#(<= 4 main_~x~0)} is VALID [2020-07-17 22:20:13,317 INFO L263 TraceCheckUtils]: 5: Hoare triple {689#(<= 4 main_~x~0)} call #t~ret4 := fibo1(~x~0); {685#true} is VALID [2020-07-17 22:20:13,318 INFO L280 TraceCheckUtils]: 6: Hoare triple {685#true} ~n := #in~n; {742#(<= |fibo1_#in~n| fibo1_~n)} is VALID [2020-07-17 22:20:13,318 INFO L280 TraceCheckUtils]: 7: Hoare triple {742#(<= |fibo1_#in~n| fibo1_~n)} assume !(~n < 1); {742#(<= |fibo1_#in~n| fibo1_~n)} is VALID [2020-07-17 22:20:13,318 INFO L280 TraceCheckUtils]: 8: Hoare triple {742#(<= |fibo1_#in~n| fibo1_~n)} assume !(1 == ~n); {742#(<= |fibo1_#in~n| fibo1_~n)} is VALID [2020-07-17 22:20:13,319 INFO L263 TraceCheckUtils]: 9: Hoare triple {742#(<= |fibo1_#in~n| fibo1_~n)} call #t~ret0 := fibo2(~n - 1); {685#true} is VALID [2020-07-17 22:20:13,319 INFO L280 TraceCheckUtils]: 10: Hoare triple {685#true} ~n := #in~n; {755#(<= |fibo2_#in~n| fibo2_~n)} is VALID [2020-07-17 22:20:13,320 INFO L280 TraceCheckUtils]: 11: Hoare triple {755#(<= |fibo2_#in~n| fibo2_~n)} assume !(~n < 1); {755#(<= |fibo2_#in~n| fibo2_~n)} is VALID [2020-07-17 22:20:13,320 INFO L280 TraceCheckUtils]: 12: Hoare triple {755#(<= |fibo2_#in~n| fibo2_~n)} assume 1 == ~n;#res := 1; {720#(<= |fibo2_#in~n| 1)} is VALID [2020-07-17 22:20:13,321 INFO L280 TraceCheckUtils]: 13: Hoare triple {720#(<= |fibo2_#in~n| 1)} assume true; {720#(<= |fibo2_#in~n| 1)} is VALID [2020-07-17 22:20:13,322 INFO L275 TraceCheckUtils]: 14: Hoare quadruple {720#(<= |fibo2_#in~n| 1)} {742#(<= |fibo1_#in~n| fibo1_~n)} #57#return; {714#(<= |fibo1_#in~n| 2)} is VALID [2020-07-17 22:20:13,322 INFO L280 TraceCheckUtils]: 15: Hoare triple {714#(<= |fibo1_#in~n| 2)} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {714#(<= |fibo1_#in~n| 2)} is VALID [2020-07-17 22:20:13,322 INFO L263 TraceCheckUtils]: 16: Hoare triple {714#(<= |fibo1_#in~n| 2)} call #t~ret1 := fibo2(~n - 2); {685#true} is VALID [2020-07-17 22:20:13,323 INFO L280 TraceCheckUtils]: 17: Hoare triple {685#true} ~n := #in~n; {685#true} is VALID [2020-07-17 22:20:13,323 INFO L280 TraceCheckUtils]: 18: Hoare triple {685#true} assume ~n < 1;#res := 0; {685#true} is VALID [2020-07-17 22:20:13,323 INFO L280 TraceCheckUtils]: 19: Hoare triple {685#true} assume true; {685#true} is VALID [2020-07-17 22:20:13,327 INFO L275 TraceCheckUtils]: 20: Hoare quadruple {685#true} {714#(<= |fibo1_#in~n| 2)} #59#return; {714#(<= |fibo1_#in~n| 2)} is VALID [2020-07-17 22:20:13,329 INFO L280 TraceCheckUtils]: 21: Hoare triple {714#(<= |fibo1_#in~n| 2)} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647;#res := #t~ret0 + #t~ret1;havoc #t~ret1;havoc #t~ret0; {714#(<= |fibo1_#in~n| 2)} is VALID [2020-07-17 22:20:13,329 INFO L280 TraceCheckUtils]: 22: Hoare triple {714#(<= |fibo1_#in~n| 2)} assume true; {714#(<= |fibo1_#in~n| 2)} is VALID [2020-07-17 22:20:13,330 INFO L275 TraceCheckUtils]: 23: Hoare quadruple {714#(<= |fibo1_#in~n| 2)} {689#(<= 4 main_~x~0)} #51#return; {686#false} is VALID [2020-07-17 22:20:13,331 INFO L280 TraceCheckUtils]: 24: Hoare triple {686#false} assume -2147483648 <= #t~ret4 && #t~ret4 <= 2147483647;~result~0 := #t~ret4;havoc #t~ret4; {686#false} is VALID [2020-07-17 22:20:13,331 INFO L280 TraceCheckUtils]: 25: Hoare triple {686#false} assume 3 != ~result~0; {686#false} is VALID [2020-07-17 22:20:13,331 INFO L280 TraceCheckUtils]: 26: Hoare triple {686#false} assume !false; {686#false} is VALID [2020-07-17 22:20:13,332 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-17 22:20:13,333 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-17 22:20:13,333 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-07-17 22:20:13,334 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088169472] [2020-07-17 22:20:13,335 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 27 [2020-07-17 22:20:13,335 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-17 22:20:13,336 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states. [2020-07-17 22:20:13,389 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 35 edges. 35 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:20:13,390 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-17 22:20:13,390 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 22:20:13,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-17 22:20:13,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-07-17 22:20:13,391 INFO L87 Difference]: Start difference. First operand 32 states and 39 transitions. Second operand 9 states. [2020-07-17 22:20:13,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:20:13,979 INFO L93 Difference]: Finished difference Result 54 states and 74 transitions. [2020-07-17 22:20:13,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-17 22:20:13,979 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 27 [2020-07-17 22:20:13,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 22:20:13,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-07-17 22:20:13,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 66 transitions. [2020-07-17 22:20:13,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-07-17 22:20:13,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 66 transitions. [2020-07-17 22:20:13,994 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states and 66 transitions. [2020-07-17 22:20:14,104 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 66 edges. 66 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:20:14,111 INFO L225 Difference]: With dead ends: 54 [2020-07-17 22:20:14,111 INFO L226 Difference]: Without dead ends: 50 [2020-07-17 22:20:14,112 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-07-17 22:20:14,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-07-17 22:20:14,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 48. [2020-07-17 22:20:14,142 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-17 22:20:14,142 INFO L82 GeneralOperation]: Start isEquivalent. First operand 50 states. Second operand 48 states. [2020-07-17 22:20:14,142 INFO L74 IsIncluded]: Start isIncluded. First operand 50 states. Second operand 48 states. [2020-07-17 22:20:14,142 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 48 states. [2020-07-17 22:20:14,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:20:14,147 INFO L93 Difference]: Finished difference Result 50 states and 70 transitions. [2020-07-17 22:20:14,148 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 70 transitions. [2020-07-17 22:20:14,149 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:20:14,149 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:20:14,149 INFO L74 IsIncluded]: Start isIncluded. First operand 48 states. Second operand 50 states. [2020-07-17 22:20:14,149 INFO L87 Difference]: Start difference. First operand 48 states. Second operand 50 states. [2020-07-17 22:20:14,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:20:14,154 INFO L93 Difference]: Finished difference Result 50 states and 70 transitions. [2020-07-17 22:20:14,154 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 70 transitions. [2020-07-17 22:20:14,155 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:20:14,155 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:20:14,156 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-17 22:20:14,156 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-17 22:20:14,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-07-17 22:20:14,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 65 transitions. [2020-07-17 22:20:14,160 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 65 transitions. Word has length 27 [2020-07-17 22:20:14,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 22:20:14,160 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 65 transitions. [2020-07-17 22:20:14,160 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-17 22:20:14,160 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 65 transitions. [2020-07-17 22:20:14,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-07-17 22:20:14,162 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 22:20:14,162 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 22:20:14,368 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 22:20:14,369 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 22:20:14,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 22:20:14,370 INFO L82 PathProgramCache]: Analyzing trace with hash 986908919, now seen corresponding path program 1 times [2020-07-17 22:20:14,371 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 22:20:14,371 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999498649] [2020-07-17 22:20:14,371 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 22:20:14,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:20:14,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:20:14,415 INFO L280 TraceCheckUtils]: 0: Hoare triple {1044#true} assume true; {1044#true} is VALID [2020-07-17 22:20:14,416 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {1044#true} {1044#true} #47#return; {1044#true} is VALID [2020-07-17 22:20:14,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:20:14,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:20:14,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:20:14,507 INFO L280 TraceCheckUtils]: 0: Hoare triple {1044#true} ~n := #in~n; {1109#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-17 22:20:14,508 INFO L280 TraceCheckUtils]: 1: Hoare triple {1109#(= fibo1_~n |fibo1_#in~n|)} assume ~n < 1;#res := 0; {1110#(<= |fibo1_#in~n| 0)} is VALID [2020-07-17 22:20:14,509 INFO L280 TraceCheckUtils]: 2: Hoare triple {1110#(<= |fibo1_#in~n| 0)} assume true; {1110#(<= |fibo1_#in~n| 0)} is VALID [2020-07-17 22:20:14,510 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {1110#(<= |fibo1_#in~n| 0)} {1100#(< 1 fibo2_~n)} #53#return; {1045#false} is VALID [2020-07-17 22:20:14,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:20:14,517 INFO L280 TraceCheckUtils]: 0: Hoare triple {1044#true} ~n := #in~n; {1044#true} is VALID [2020-07-17 22:20:14,517 INFO L280 TraceCheckUtils]: 1: Hoare triple {1044#true} assume ~n < 1;#res := 0; {1044#true} is VALID [2020-07-17 22:20:14,517 INFO L280 TraceCheckUtils]: 2: Hoare triple {1044#true} assume true; {1044#true} is VALID [2020-07-17 22:20:14,518 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {1044#true} {1045#false} #55#return; {1045#false} is VALID [2020-07-17 22:20:14,518 INFO L280 TraceCheckUtils]: 0: Hoare triple {1044#true} ~n := #in~n; {1044#true} is VALID [2020-07-17 22:20:14,519 INFO L280 TraceCheckUtils]: 1: Hoare triple {1044#true} assume !(~n < 1); {1099#(< 0 fibo2_~n)} is VALID [2020-07-17 22:20:14,520 INFO L280 TraceCheckUtils]: 2: Hoare triple {1099#(< 0 fibo2_~n)} assume !(1 == ~n); {1100#(< 1 fibo2_~n)} is VALID [2020-07-17 22:20:14,520 INFO L263 TraceCheckUtils]: 3: Hoare triple {1100#(< 1 fibo2_~n)} call #t~ret2 := fibo1(~n - 1); {1044#true} is VALID [2020-07-17 22:20:14,521 INFO L280 TraceCheckUtils]: 4: Hoare triple {1044#true} ~n := #in~n; {1109#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-17 22:20:14,522 INFO L280 TraceCheckUtils]: 5: Hoare triple {1109#(= fibo1_~n |fibo1_#in~n|)} assume ~n < 1;#res := 0; {1110#(<= |fibo1_#in~n| 0)} is VALID [2020-07-17 22:20:14,523 INFO L280 TraceCheckUtils]: 6: Hoare triple {1110#(<= |fibo1_#in~n| 0)} assume true; {1110#(<= |fibo1_#in~n| 0)} is VALID [2020-07-17 22:20:14,524 INFO L275 TraceCheckUtils]: 7: Hoare quadruple {1110#(<= |fibo1_#in~n| 0)} {1100#(< 1 fibo2_~n)} #53#return; {1045#false} is VALID [2020-07-17 22:20:14,524 INFO L280 TraceCheckUtils]: 8: Hoare triple {1045#false} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {1045#false} is VALID [2020-07-17 22:20:14,524 INFO L263 TraceCheckUtils]: 9: Hoare triple {1045#false} call #t~ret3 := fibo1(~n - 2); {1044#true} is VALID [2020-07-17 22:20:14,525 INFO L280 TraceCheckUtils]: 10: Hoare triple {1044#true} ~n := #in~n; {1044#true} is VALID [2020-07-17 22:20:14,525 INFO L280 TraceCheckUtils]: 11: Hoare triple {1044#true} assume ~n < 1;#res := 0; {1044#true} is VALID [2020-07-17 22:20:14,525 INFO L280 TraceCheckUtils]: 12: Hoare triple {1044#true} assume true; {1044#true} is VALID [2020-07-17 22:20:14,526 INFO L275 TraceCheckUtils]: 13: Hoare quadruple {1044#true} {1045#false} #55#return; {1045#false} is VALID [2020-07-17 22:20:14,526 INFO L280 TraceCheckUtils]: 14: Hoare triple {1045#false} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647;#res := #t~ret2 + #t~ret3;havoc #t~ret3;havoc #t~ret2; {1045#false} is VALID [2020-07-17 22:20:14,526 INFO L280 TraceCheckUtils]: 15: Hoare triple {1045#false} assume true; {1045#false} is VALID [2020-07-17 22:20:14,526 INFO L275 TraceCheckUtils]: 16: Hoare quadruple {1045#false} {1044#true} #57#return; {1045#false} is VALID [2020-07-17 22:20:14,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:20:14,533 INFO L280 TraceCheckUtils]: 0: Hoare triple {1044#true} ~n := #in~n; {1044#true} is VALID [2020-07-17 22:20:14,533 INFO L280 TraceCheckUtils]: 1: Hoare triple {1044#true} assume ~n < 1;#res := 0; {1044#true} is VALID [2020-07-17 22:20:14,533 INFO L280 TraceCheckUtils]: 2: Hoare triple {1044#true} assume true; {1044#true} is VALID [2020-07-17 22:20:14,534 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {1044#true} {1045#false} #59#return; {1045#false} is VALID [2020-07-17 22:20:14,534 INFO L280 TraceCheckUtils]: 0: Hoare triple {1044#true} ~n := #in~n; {1044#true} is VALID [2020-07-17 22:20:14,534 INFO L280 TraceCheckUtils]: 1: Hoare triple {1044#true} assume !(~n < 1); {1044#true} is VALID [2020-07-17 22:20:14,534 INFO L280 TraceCheckUtils]: 2: Hoare triple {1044#true} assume !(1 == ~n); {1044#true} is VALID [2020-07-17 22:20:14,535 INFO L263 TraceCheckUtils]: 3: Hoare triple {1044#true} call #t~ret0 := fibo2(~n - 1); {1044#true} is VALID [2020-07-17 22:20:14,535 INFO L280 TraceCheckUtils]: 4: Hoare triple {1044#true} ~n := #in~n; {1044#true} is VALID [2020-07-17 22:20:14,536 INFO L280 TraceCheckUtils]: 5: Hoare triple {1044#true} assume !(~n < 1); {1099#(< 0 fibo2_~n)} is VALID [2020-07-17 22:20:14,537 INFO L280 TraceCheckUtils]: 6: Hoare triple {1099#(< 0 fibo2_~n)} assume !(1 == ~n); {1100#(< 1 fibo2_~n)} is VALID [2020-07-17 22:20:14,537 INFO L263 TraceCheckUtils]: 7: Hoare triple {1100#(< 1 fibo2_~n)} call #t~ret2 := fibo1(~n - 1); {1044#true} is VALID [2020-07-17 22:20:14,538 INFO L280 TraceCheckUtils]: 8: Hoare triple {1044#true} ~n := #in~n; {1109#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-17 22:20:14,539 INFO L280 TraceCheckUtils]: 9: Hoare triple {1109#(= fibo1_~n |fibo1_#in~n|)} assume ~n < 1;#res := 0; {1110#(<= |fibo1_#in~n| 0)} is VALID [2020-07-17 22:20:14,539 INFO L280 TraceCheckUtils]: 10: Hoare triple {1110#(<= |fibo1_#in~n| 0)} assume true; {1110#(<= |fibo1_#in~n| 0)} is VALID [2020-07-17 22:20:14,540 INFO L275 TraceCheckUtils]: 11: Hoare quadruple {1110#(<= |fibo1_#in~n| 0)} {1100#(< 1 fibo2_~n)} #53#return; {1045#false} is VALID [2020-07-17 22:20:14,541 INFO L280 TraceCheckUtils]: 12: Hoare triple {1045#false} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {1045#false} is VALID [2020-07-17 22:20:14,541 INFO L263 TraceCheckUtils]: 13: Hoare triple {1045#false} call #t~ret3 := fibo1(~n - 2); {1044#true} is VALID [2020-07-17 22:20:14,541 INFO L280 TraceCheckUtils]: 14: Hoare triple {1044#true} ~n := #in~n; {1044#true} is VALID [2020-07-17 22:20:14,542 INFO L280 TraceCheckUtils]: 15: Hoare triple {1044#true} assume ~n < 1;#res := 0; {1044#true} is VALID [2020-07-17 22:20:14,542 INFO L280 TraceCheckUtils]: 16: Hoare triple {1044#true} assume true; {1044#true} is VALID [2020-07-17 22:20:14,542 INFO L275 TraceCheckUtils]: 17: Hoare quadruple {1044#true} {1045#false} #55#return; {1045#false} is VALID [2020-07-17 22:20:14,542 INFO L280 TraceCheckUtils]: 18: Hoare triple {1045#false} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647;#res := #t~ret2 + #t~ret3;havoc #t~ret3;havoc #t~ret2; {1045#false} is VALID [2020-07-17 22:20:14,543 INFO L280 TraceCheckUtils]: 19: Hoare triple {1045#false} assume true; {1045#false} is VALID [2020-07-17 22:20:14,543 INFO L275 TraceCheckUtils]: 20: Hoare quadruple {1045#false} {1044#true} #57#return; {1045#false} is VALID [2020-07-17 22:20:14,543 INFO L280 TraceCheckUtils]: 21: Hoare triple {1045#false} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {1045#false} is VALID [2020-07-17 22:20:14,543 INFO L263 TraceCheckUtils]: 22: Hoare triple {1045#false} call #t~ret1 := fibo2(~n - 2); {1044#true} is VALID [2020-07-17 22:20:14,544 INFO L280 TraceCheckUtils]: 23: Hoare triple {1044#true} ~n := #in~n; {1044#true} is VALID [2020-07-17 22:20:14,544 INFO L280 TraceCheckUtils]: 24: Hoare triple {1044#true} assume ~n < 1;#res := 0; {1044#true} is VALID [2020-07-17 22:20:14,544 INFO L280 TraceCheckUtils]: 25: Hoare triple {1044#true} assume true; {1044#true} is VALID [2020-07-17 22:20:14,544 INFO L275 TraceCheckUtils]: 26: Hoare quadruple {1044#true} {1045#false} #59#return; {1045#false} is VALID [2020-07-17 22:20:14,545 INFO L280 TraceCheckUtils]: 27: Hoare triple {1045#false} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647;#res := #t~ret0 + #t~ret1;havoc #t~ret1;havoc #t~ret0; {1045#false} is VALID [2020-07-17 22:20:14,545 INFO L280 TraceCheckUtils]: 28: Hoare triple {1045#false} assume true; {1045#false} is VALID [2020-07-17 22:20:14,545 INFO L275 TraceCheckUtils]: 29: Hoare quadruple {1045#false} {1044#true} #51#return; {1045#false} is VALID [2020-07-17 22:20:14,546 INFO L263 TraceCheckUtils]: 0: Hoare triple {1044#true} call ULTIMATE.init(); {1044#true} is VALID [2020-07-17 22:20:14,546 INFO L280 TraceCheckUtils]: 1: Hoare triple {1044#true} assume true; {1044#true} is VALID [2020-07-17 22:20:14,547 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {1044#true} {1044#true} #47#return; {1044#true} is VALID [2020-07-17 22:20:14,547 INFO L263 TraceCheckUtils]: 3: Hoare triple {1044#true} call #t~ret5 := main(); {1044#true} is VALID [2020-07-17 22:20:14,547 INFO L280 TraceCheckUtils]: 4: Hoare triple {1044#true} ~x~0 := 4; {1044#true} is VALID [2020-07-17 22:20:14,547 INFO L263 TraceCheckUtils]: 5: Hoare triple {1044#true} call #t~ret4 := fibo1(~x~0); {1044#true} is VALID [2020-07-17 22:20:14,548 INFO L280 TraceCheckUtils]: 6: Hoare triple {1044#true} ~n := #in~n; {1044#true} is VALID [2020-07-17 22:20:14,548 INFO L280 TraceCheckUtils]: 7: Hoare triple {1044#true} assume !(~n < 1); {1044#true} is VALID [2020-07-17 22:20:14,548 INFO L280 TraceCheckUtils]: 8: Hoare triple {1044#true} assume !(1 == ~n); {1044#true} is VALID [2020-07-17 22:20:14,548 INFO L263 TraceCheckUtils]: 9: Hoare triple {1044#true} call #t~ret0 := fibo2(~n - 1); {1044#true} is VALID [2020-07-17 22:20:14,549 INFO L280 TraceCheckUtils]: 10: Hoare triple {1044#true} ~n := #in~n; {1044#true} is VALID [2020-07-17 22:20:14,550 INFO L280 TraceCheckUtils]: 11: Hoare triple {1044#true} assume !(~n < 1); {1099#(< 0 fibo2_~n)} is VALID [2020-07-17 22:20:14,551 INFO L280 TraceCheckUtils]: 12: Hoare triple {1099#(< 0 fibo2_~n)} assume !(1 == ~n); {1100#(< 1 fibo2_~n)} is VALID [2020-07-17 22:20:14,551 INFO L263 TraceCheckUtils]: 13: Hoare triple {1100#(< 1 fibo2_~n)} call #t~ret2 := fibo1(~n - 1); {1044#true} is VALID [2020-07-17 22:20:14,551 INFO L280 TraceCheckUtils]: 14: Hoare triple {1044#true} ~n := #in~n; {1109#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-17 22:20:14,552 INFO L280 TraceCheckUtils]: 15: Hoare triple {1109#(= fibo1_~n |fibo1_#in~n|)} assume ~n < 1;#res := 0; {1110#(<= |fibo1_#in~n| 0)} is VALID [2020-07-17 22:20:14,553 INFO L280 TraceCheckUtils]: 16: Hoare triple {1110#(<= |fibo1_#in~n| 0)} assume true; {1110#(<= |fibo1_#in~n| 0)} is VALID [2020-07-17 22:20:14,554 INFO L275 TraceCheckUtils]: 17: Hoare quadruple {1110#(<= |fibo1_#in~n| 0)} {1100#(< 1 fibo2_~n)} #53#return; {1045#false} is VALID [2020-07-17 22:20:14,555 INFO L280 TraceCheckUtils]: 18: Hoare triple {1045#false} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {1045#false} is VALID [2020-07-17 22:20:14,555 INFO L263 TraceCheckUtils]: 19: Hoare triple {1045#false} call #t~ret3 := fibo1(~n - 2); {1044#true} is VALID [2020-07-17 22:20:14,555 INFO L280 TraceCheckUtils]: 20: Hoare triple {1044#true} ~n := #in~n; {1044#true} is VALID [2020-07-17 22:20:14,555 INFO L280 TraceCheckUtils]: 21: Hoare triple {1044#true} assume ~n < 1;#res := 0; {1044#true} is VALID [2020-07-17 22:20:14,556 INFO L280 TraceCheckUtils]: 22: Hoare triple {1044#true} assume true; {1044#true} is VALID [2020-07-17 22:20:14,556 INFO L275 TraceCheckUtils]: 23: Hoare quadruple {1044#true} {1045#false} #55#return; {1045#false} is VALID [2020-07-17 22:20:14,556 INFO L280 TraceCheckUtils]: 24: Hoare triple {1045#false} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647;#res := #t~ret2 + #t~ret3;havoc #t~ret3;havoc #t~ret2; {1045#false} is VALID [2020-07-17 22:20:14,556 INFO L280 TraceCheckUtils]: 25: Hoare triple {1045#false} assume true; {1045#false} is VALID [2020-07-17 22:20:14,556 INFO L275 TraceCheckUtils]: 26: Hoare quadruple {1045#false} {1044#true} #57#return; {1045#false} is VALID [2020-07-17 22:20:14,557 INFO L280 TraceCheckUtils]: 27: Hoare triple {1045#false} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {1045#false} is VALID [2020-07-17 22:20:14,557 INFO L263 TraceCheckUtils]: 28: Hoare triple {1045#false} call #t~ret1 := fibo2(~n - 2); {1044#true} is VALID [2020-07-17 22:20:14,557 INFO L280 TraceCheckUtils]: 29: Hoare triple {1044#true} ~n := #in~n; {1044#true} is VALID [2020-07-17 22:20:14,557 INFO L280 TraceCheckUtils]: 30: Hoare triple {1044#true} assume ~n < 1;#res := 0; {1044#true} is VALID [2020-07-17 22:20:14,558 INFO L280 TraceCheckUtils]: 31: Hoare triple {1044#true} assume true; {1044#true} is VALID [2020-07-17 22:20:14,558 INFO L275 TraceCheckUtils]: 32: Hoare quadruple {1044#true} {1045#false} #59#return; {1045#false} is VALID [2020-07-17 22:20:14,558 INFO L280 TraceCheckUtils]: 33: Hoare triple {1045#false} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647;#res := #t~ret0 + #t~ret1;havoc #t~ret1;havoc #t~ret0; {1045#false} is VALID [2020-07-17 22:20:14,558 INFO L280 TraceCheckUtils]: 34: Hoare triple {1045#false} assume true; {1045#false} is VALID [2020-07-17 22:20:14,559 INFO L275 TraceCheckUtils]: 35: Hoare quadruple {1045#false} {1044#true} #51#return; {1045#false} is VALID [2020-07-17 22:20:14,559 INFO L280 TraceCheckUtils]: 36: Hoare triple {1045#false} assume -2147483648 <= #t~ret4 && #t~ret4 <= 2147483647;~result~0 := #t~ret4;havoc #t~ret4; {1045#false} is VALID [2020-07-17 22:20:14,559 INFO L280 TraceCheckUtils]: 37: Hoare triple {1045#false} assume 3 != ~result~0; {1045#false} is VALID [2020-07-17 22:20:14,559 INFO L280 TraceCheckUtils]: 38: Hoare triple {1045#false} assume !false; {1045#false} is VALID [2020-07-17 22:20:14,561 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-07-17 22:20:14,561 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999498649] [2020-07-17 22:20:14,561 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [368962282] [2020-07-17 22:20:14,562 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2020-07-17 22:20:14,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 22:20:14,594 INFO L264 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-17 22:20:14,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:20:14,614 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-17 22:20:14,836 INFO L263 TraceCheckUtils]: 0: Hoare triple {1044#true} call ULTIMATE.init(); {1044#true} is VALID [2020-07-17 22:20:14,836 INFO L280 TraceCheckUtils]: 1: Hoare triple {1044#true} assume true; {1044#true} is VALID [2020-07-17 22:20:14,836 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {1044#true} {1044#true} #47#return; {1044#true} is VALID [2020-07-17 22:20:14,836 INFO L263 TraceCheckUtils]: 3: Hoare triple {1044#true} call #t~ret5 := main(); {1044#true} is VALID [2020-07-17 22:20:14,838 INFO L280 TraceCheckUtils]: 4: Hoare triple {1044#true} ~x~0 := 4; {1126#(<= 4 main_~x~0)} is VALID [2020-07-17 22:20:14,838 INFO L263 TraceCheckUtils]: 5: Hoare triple {1126#(<= 4 main_~x~0)} call #t~ret4 := fibo1(~x~0); {1044#true} is VALID [2020-07-17 22:20:14,840 INFO L280 TraceCheckUtils]: 6: Hoare triple {1044#true} ~n := #in~n; {1133#(<= |fibo1_#in~n| fibo1_~n)} is VALID [2020-07-17 22:20:14,841 INFO L280 TraceCheckUtils]: 7: Hoare triple {1133#(<= |fibo1_#in~n| fibo1_~n)} assume !(~n < 1); {1133#(<= |fibo1_#in~n| fibo1_~n)} is VALID [2020-07-17 22:20:14,841 INFO L280 TraceCheckUtils]: 8: Hoare triple {1133#(<= |fibo1_#in~n| fibo1_~n)} assume !(1 == ~n); {1133#(<= |fibo1_#in~n| fibo1_~n)} is VALID [2020-07-17 22:20:14,841 INFO L263 TraceCheckUtils]: 9: Hoare triple {1133#(<= |fibo1_#in~n| fibo1_~n)} call #t~ret0 := fibo2(~n - 1); {1044#true} is VALID [2020-07-17 22:20:14,842 INFO L280 TraceCheckUtils]: 10: Hoare triple {1044#true} ~n := #in~n; {1146#(<= |fibo2_#in~n| fibo2_~n)} is VALID [2020-07-17 22:20:14,844 INFO L280 TraceCheckUtils]: 11: Hoare triple {1146#(<= |fibo2_#in~n| fibo2_~n)} assume !(~n < 1); {1146#(<= |fibo2_#in~n| fibo2_~n)} is VALID [2020-07-17 22:20:14,847 INFO L280 TraceCheckUtils]: 12: Hoare triple {1146#(<= |fibo2_#in~n| fibo2_~n)} assume !(1 == ~n); {1146#(<= |fibo2_#in~n| fibo2_~n)} is VALID [2020-07-17 22:20:14,847 INFO L263 TraceCheckUtils]: 13: Hoare triple {1146#(<= |fibo2_#in~n| fibo2_~n)} call #t~ret2 := fibo1(~n - 1); {1044#true} is VALID [2020-07-17 22:20:14,849 INFO L280 TraceCheckUtils]: 14: Hoare triple {1044#true} ~n := #in~n; {1133#(<= |fibo1_#in~n| fibo1_~n)} is VALID [2020-07-17 22:20:14,850 INFO L280 TraceCheckUtils]: 15: Hoare triple {1133#(<= |fibo1_#in~n| fibo1_~n)} assume ~n < 1;#res := 0; {1110#(<= |fibo1_#in~n| 0)} is VALID [2020-07-17 22:20:14,851 INFO L280 TraceCheckUtils]: 16: Hoare triple {1110#(<= |fibo1_#in~n| 0)} assume true; {1110#(<= |fibo1_#in~n| 0)} is VALID [2020-07-17 22:20:14,852 INFO L275 TraceCheckUtils]: 17: Hoare quadruple {1110#(<= |fibo1_#in~n| 0)} {1146#(<= |fibo2_#in~n| fibo2_~n)} #53#return; {1168#(<= |fibo2_#in~n| 1)} is VALID [2020-07-17 22:20:14,852 INFO L280 TraceCheckUtils]: 18: Hoare triple {1168#(<= |fibo2_#in~n| 1)} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {1168#(<= |fibo2_#in~n| 1)} is VALID [2020-07-17 22:20:14,853 INFO L263 TraceCheckUtils]: 19: Hoare triple {1168#(<= |fibo2_#in~n| 1)} call #t~ret3 := fibo1(~n - 2); {1044#true} is VALID [2020-07-17 22:20:14,853 INFO L280 TraceCheckUtils]: 20: Hoare triple {1044#true} ~n := #in~n; {1044#true} is VALID [2020-07-17 22:20:14,853 INFO L280 TraceCheckUtils]: 21: Hoare triple {1044#true} assume ~n < 1;#res := 0; {1044#true} is VALID [2020-07-17 22:20:14,853 INFO L280 TraceCheckUtils]: 22: Hoare triple {1044#true} assume true; {1044#true} is VALID [2020-07-17 22:20:14,854 INFO L275 TraceCheckUtils]: 23: Hoare quadruple {1044#true} {1168#(<= |fibo2_#in~n| 1)} #55#return; {1168#(<= |fibo2_#in~n| 1)} is VALID [2020-07-17 22:20:14,855 INFO L280 TraceCheckUtils]: 24: Hoare triple {1168#(<= |fibo2_#in~n| 1)} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647;#res := #t~ret2 + #t~ret3;havoc #t~ret3;havoc #t~ret2; {1168#(<= |fibo2_#in~n| 1)} is VALID [2020-07-17 22:20:14,855 INFO L280 TraceCheckUtils]: 25: Hoare triple {1168#(<= |fibo2_#in~n| 1)} assume true; {1168#(<= |fibo2_#in~n| 1)} is VALID [2020-07-17 22:20:14,856 INFO L275 TraceCheckUtils]: 26: Hoare quadruple {1168#(<= |fibo2_#in~n| 1)} {1133#(<= |fibo1_#in~n| fibo1_~n)} #57#return; {1196#(<= |fibo1_#in~n| 2)} is VALID [2020-07-17 22:20:14,857 INFO L280 TraceCheckUtils]: 27: Hoare triple {1196#(<= |fibo1_#in~n| 2)} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {1196#(<= |fibo1_#in~n| 2)} is VALID [2020-07-17 22:20:14,857 INFO L263 TraceCheckUtils]: 28: Hoare triple {1196#(<= |fibo1_#in~n| 2)} call #t~ret1 := fibo2(~n - 2); {1044#true} is VALID [2020-07-17 22:20:14,857 INFO L280 TraceCheckUtils]: 29: Hoare triple {1044#true} ~n := #in~n; {1044#true} is VALID [2020-07-17 22:20:14,857 INFO L280 TraceCheckUtils]: 30: Hoare triple {1044#true} assume ~n < 1;#res := 0; {1044#true} is VALID [2020-07-17 22:20:14,858 INFO L280 TraceCheckUtils]: 31: Hoare triple {1044#true} assume true; {1044#true} is VALID [2020-07-17 22:20:14,859 INFO L275 TraceCheckUtils]: 32: Hoare quadruple {1044#true} {1196#(<= |fibo1_#in~n| 2)} #59#return; {1196#(<= |fibo1_#in~n| 2)} is VALID [2020-07-17 22:20:14,862 INFO L280 TraceCheckUtils]: 33: Hoare triple {1196#(<= |fibo1_#in~n| 2)} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647;#res := #t~ret0 + #t~ret1;havoc #t~ret1;havoc #t~ret0; {1196#(<= |fibo1_#in~n| 2)} is VALID [2020-07-17 22:20:14,862 INFO L280 TraceCheckUtils]: 34: Hoare triple {1196#(<= |fibo1_#in~n| 2)} assume true; {1196#(<= |fibo1_#in~n| 2)} is VALID [2020-07-17 22:20:14,863 INFO L275 TraceCheckUtils]: 35: Hoare quadruple {1196#(<= |fibo1_#in~n| 2)} {1126#(<= 4 main_~x~0)} #51#return; {1045#false} is VALID [2020-07-17 22:20:14,863 INFO L280 TraceCheckUtils]: 36: Hoare triple {1045#false} assume -2147483648 <= #t~ret4 && #t~ret4 <= 2147483647;~result~0 := #t~ret4;havoc #t~ret4; {1045#false} is VALID [2020-07-17 22:20:14,864 INFO L280 TraceCheckUtils]: 37: Hoare triple {1045#false} assume 3 != ~result~0; {1045#false} is VALID [2020-07-17 22:20:14,864 INFO L280 TraceCheckUtils]: 38: Hoare triple {1045#false} assume !false; {1045#false} is VALID [2020-07-17 22:20:14,865 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-17 22:20:14,866 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-17 22:20:14,866 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8] total 11 [2020-07-17 22:20:14,866 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775810854] [2020-07-17 22:20:14,867 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 39 [2020-07-17 22:20:14,869 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-17 22:20:14,869 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 11 states. [2020-07-17 22:20:14,944 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 61 edges. 61 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:20:14,944 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-17 22:20:14,944 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 22:20:14,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-17 22:20:14,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-07-17 22:20:14,946 INFO L87 Difference]: Start difference. First operand 48 states and 65 transitions. Second operand 11 states. [2020-07-17 22:20:15,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:20:15,999 INFO L93 Difference]: Finished difference Result 108 states and 170 transitions. [2020-07-17 22:20:15,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-07-17 22:20:16,000 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 39 [2020-07-17 22:20:16,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 22:20:16,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-07-17 22:20:16,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 102 transitions. [2020-07-17 22:20:16,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-07-17 22:20:16,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 102 transitions. [2020-07-17 22:20:16,012 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 13 states and 102 transitions. [2020-07-17 22:20:16,137 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 102 edges. 102 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:20:16,142 INFO L225 Difference]: With dead ends: 108 [2020-07-17 22:20:16,142 INFO L226 Difference]: Without dead ends: 66 [2020-07-17 22:20:16,144 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2020-07-17 22:20:16,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-07-17 22:20:16,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2020-07-17 22:20:16,183 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-17 22:20:16,184 INFO L82 GeneralOperation]: Start isEquivalent. First operand 66 states. Second operand 66 states. [2020-07-17 22:20:16,184 INFO L74 IsIncluded]: Start isIncluded. First operand 66 states. Second operand 66 states. [2020-07-17 22:20:16,184 INFO L87 Difference]: Start difference. First operand 66 states. Second operand 66 states. [2020-07-17 22:20:16,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:20:16,189 INFO L93 Difference]: Finished difference Result 66 states and 95 transitions. [2020-07-17 22:20:16,190 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 95 transitions. [2020-07-17 22:20:16,190 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:20:16,190 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:20:16,191 INFO L74 IsIncluded]: Start isIncluded. First operand 66 states. Second operand 66 states. [2020-07-17 22:20:16,191 INFO L87 Difference]: Start difference. First operand 66 states. Second operand 66 states. [2020-07-17 22:20:16,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:20:16,198 INFO L93 Difference]: Finished difference Result 66 states and 95 transitions. [2020-07-17 22:20:16,198 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 95 transitions. [2020-07-17 22:20:16,201 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:20:16,201 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:20:16,202 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-17 22:20:16,202 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-17 22:20:16,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-07-17 22:20:16,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 95 transitions. [2020-07-17 22:20:16,208 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 95 transitions. Word has length 39 [2020-07-17 22:20:16,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 22:20:16,208 INFO L479 AbstractCegarLoop]: Abstraction has 66 states and 95 transitions. [2020-07-17 22:20:16,208 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-17 22:20:16,208 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 95 transitions. [2020-07-17 22:20:16,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-07-17 22:20:16,213 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 22:20:16,213 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 22:20:16,428 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 22:20:16,429 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 22:20:16,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 22:20:16,430 INFO L82 PathProgramCache]: Analyzing trace with hash -2100495745, now seen corresponding path program 1 times [2020-07-17 22:20:16,431 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 22:20:16,431 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447337105] [2020-07-17 22:20:16,431 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 22:20:16,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:20:16,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:20:16,507 INFO L280 TraceCheckUtils]: 0: Hoare triple {1610#true} assume true; {1610#true} is VALID [2020-07-17 22:20:16,508 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {1610#true} {1610#true} #47#return; {1610#true} is VALID [2020-07-17 22:20:16,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:20:16,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:20:16,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:20:16,673 INFO L280 TraceCheckUtils]: 0: Hoare triple {1610#true} ~n := #in~n; {1610#true} is VALID [2020-07-17 22:20:16,673 INFO L280 TraceCheckUtils]: 1: Hoare triple {1610#true} assume !(~n < 1); {1610#true} is VALID [2020-07-17 22:20:16,674 INFO L280 TraceCheckUtils]: 2: Hoare triple {1610#true} assume 1 == ~n;#res := 1; {1610#true} is VALID [2020-07-17 22:20:16,674 INFO L280 TraceCheckUtils]: 3: Hoare triple {1610#true} assume true; {1610#true} is VALID [2020-07-17 22:20:16,675 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {1610#true} {1671#(<= 2 |fibo2_#in~n|)} #53#return; {1671#(<= 2 |fibo2_#in~n|)} is VALID [2020-07-17 22:20:16,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:20:16,689 INFO L280 TraceCheckUtils]: 0: Hoare triple {1610#true} ~n := #in~n; {1610#true} is VALID [2020-07-17 22:20:16,689 INFO L280 TraceCheckUtils]: 1: Hoare triple {1610#true} assume ~n < 1;#res := 0; {1610#true} is VALID [2020-07-17 22:20:16,690 INFO L280 TraceCheckUtils]: 2: Hoare triple {1610#true} assume true; {1610#true} is VALID [2020-07-17 22:20:16,691 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {1610#true} {1671#(<= 2 |fibo2_#in~n|)} #55#return; {1671#(<= 2 |fibo2_#in~n|)} is VALID [2020-07-17 22:20:16,692 INFO L280 TraceCheckUtils]: 0: Hoare triple {1610#true} ~n := #in~n; {1669#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-17 22:20:16,693 INFO L280 TraceCheckUtils]: 1: Hoare triple {1669#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {1670#(and (< 0 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} is VALID [2020-07-17 22:20:16,694 INFO L280 TraceCheckUtils]: 2: Hoare triple {1670#(and (< 0 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} assume !(1 == ~n); {1671#(<= 2 |fibo2_#in~n|)} is VALID [2020-07-17 22:20:16,695 INFO L263 TraceCheckUtils]: 3: Hoare triple {1671#(<= 2 |fibo2_#in~n|)} call #t~ret2 := fibo1(~n - 1); {1610#true} is VALID [2020-07-17 22:20:16,695 INFO L280 TraceCheckUtils]: 4: Hoare triple {1610#true} ~n := #in~n; {1610#true} is VALID [2020-07-17 22:20:16,696 INFO L280 TraceCheckUtils]: 5: Hoare triple {1610#true} assume !(~n < 1); {1610#true} is VALID [2020-07-17 22:20:16,697 INFO L280 TraceCheckUtils]: 6: Hoare triple {1610#true} assume 1 == ~n;#res := 1; {1610#true} is VALID [2020-07-17 22:20:16,697 INFO L280 TraceCheckUtils]: 7: Hoare triple {1610#true} assume true; {1610#true} is VALID [2020-07-17 22:20:16,698 INFO L275 TraceCheckUtils]: 8: Hoare quadruple {1610#true} {1671#(<= 2 |fibo2_#in~n|)} #53#return; {1671#(<= 2 |fibo2_#in~n|)} is VALID [2020-07-17 22:20:16,699 INFO L280 TraceCheckUtils]: 9: Hoare triple {1671#(<= 2 |fibo2_#in~n|)} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {1671#(<= 2 |fibo2_#in~n|)} is VALID [2020-07-17 22:20:16,699 INFO L263 TraceCheckUtils]: 10: Hoare triple {1671#(<= 2 |fibo2_#in~n|)} call #t~ret3 := fibo1(~n - 2); {1610#true} is VALID [2020-07-17 22:20:16,699 INFO L280 TraceCheckUtils]: 11: Hoare triple {1610#true} ~n := #in~n; {1610#true} is VALID [2020-07-17 22:20:16,700 INFO L280 TraceCheckUtils]: 12: Hoare triple {1610#true} assume ~n < 1;#res := 0; {1610#true} is VALID [2020-07-17 22:20:16,700 INFO L280 TraceCheckUtils]: 13: Hoare triple {1610#true} assume true; {1610#true} is VALID [2020-07-17 22:20:16,701 INFO L275 TraceCheckUtils]: 14: Hoare quadruple {1610#true} {1671#(<= 2 |fibo2_#in~n|)} #55#return; {1671#(<= 2 |fibo2_#in~n|)} is VALID [2020-07-17 22:20:16,701 INFO L280 TraceCheckUtils]: 15: Hoare triple {1671#(<= 2 |fibo2_#in~n|)} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647;#res := #t~ret2 + #t~ret3;havoc #t~ret3;havoc #t~ret2; {1671#(<= 2 |fibo2_#in~n|)} is VALID [2020-07-17 22:20:16,702 INFO L280 TraceCheckUtils]: 16: Hoare triple {1671#(<= 2 |fibo2_#in~n|)} assume true; {1671#(<= 2 |fibo2_#in~n|)} is VALID [2020-07-17 22:20:16,703 INFO L275 TraceCheckUtils]: 17: Hoare quadruple {1671#(<= 2 |fibo2_#in~n|)} {1610#true} #57#return; {1664#(<= 3 fibo1_~n)} is VALID [2020-07-17 22:20:16,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:20:16,727 INFO L280 TraceCheckUtils]: 0: Hoare triple {1610#true} ~n := #in~n; {1669#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-17 22:20:16,728 INFO L280 TraceCheckUtils]: 1: Hoare triple {1669#(= fibo2_~n |fibo2_#in~n|)} assume ~n < 1;#res := 0; {1681#(<= |fibo2_#in~n| 0)} is VALID [2020-07-17 22:20:16,729 INFO L280 TraceCheckUtils]: 2: Hoare triple {1681#(<= |fibo2_#in~n| 0)} assume true; {1681#(<= |fibo2_#in~n| 0)} is VALID [2020-07-17 22:20:16,731 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {1681#(<= |fibo2_#in~n| 0)} {1664#(<= 3 fibo1_~n)} #59#return; {1611#false} is VALID [2020-07-17 22:20:16,731 INFO L280 TraceCheckUtils]: 0: Hoare triple {1610#true} ~n := #in~n; {1610#true} is VALID [2020-07-17 22:20:16,732 INFO L280 TraceCheckUtils]: 1: Hoare triple {1610#true} assume !(~n < 1); {1610#true} is VALID [2020-07-17 22:20:16,732 INFO L280 TraceCheckUtils]: 2: Hoare triple {1610#true} assume !(1 == ~n); {1610#true} is VALID [2020-07-17 22:20:16,732 INFO L263 TraceCheckUtils]: 3: Hoare triple {1610#true} call #t~ret0 := fibo2(~n - 1); {1610#true} is VALID [2020-07-17 22:20:16,733 INFO L280 TraceCheckUtils]: 4: Hoare triple {1610#true} ~n := #in~n; {1669#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-17 22:20:16,734 INFO L280 TraceCheckUtils]: 5: Hoare triple {1669#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {1670#(and (< 0 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} is VALID [2020-07-17 22:20:16,735 INFO L280 TraceCheckUtils]: 6: Hoare triple {1670#(and (< 0 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} assume !(1 == ~n); {1671#(<= 2 |fibo2_#in~n|)} is VALID [2020-07-17 22:20:16,736 INFO L263 TraceCheckUtils]: 7: Hoare triple {1671#(<= 2 |fibo2_#in~n|)} call #t~ret2 := fibo1(~n - 1); {1610#true} is VALID [2020-07-17 22:20:16,736 INFO L280 TraceCheckUtils]: 8: Hoare triple {1610#true} ~n := #in~n; {1610#true} is VALID [2020-07-17 22:20:16,736 INFO L280 TraceCheckUtils]: 9: Hoare triple {1610#true} assume !(~n < 1); {1610#true} is VALID [2020-07-17 22:20:16,737 INFO L280 TraceCheckUtils]: 10: Hoare triple {1610#true} assume 1 == ~n;#res := 1; {1610#true} is VALID [2020-07-17 22:20:16,737 INFO L280 TraceCheckUtils]: 11: Hoare triple {1610#true} assume true; {1610#true} is VALID [2020-07-17 22:20:16,738 INFO L275 TraceCheckUtils]: 12: Hoare quadruple {1610#true} {1671#(<= 2 |fibo2_#in~n|)} #53#return; {1671#(<= 2 |fibo2_#in~n|)} is VALID [2020-07-17 22:20:16,740 INFO L280 TraceCheckUtils]: 13: Hoare triple {1671#(<= 2 |fibo2_#in~n|)} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {1671#(<= 2 |fibo2_#in~n|)} is VALID [2020-07-17 22:20:16,740 INFO L263 TraceCheckUtils]: 14: Hoare triple {1671#(<= 2 |fibo2_#in~n|)} call #t~ret3 := fibo1(~n - 2); {1610#true} is VALID [2020-07-17 22:20:16,740 INFO L280 TraceCheckUtils]: 15: Hoare triple {1610#true} ~n := #in~n; {1610#true} is VALID [2020-07-17 22:20:16,741 INFO L280 TraceCheckUtils]: 16: Hoare triple {1610#true} assume ~n < 1;#res := 0; {1610#true} is VALID [2020-07-17 22:20:16,741 INFO L280 TraceCheckUtils]: 17: Hoare triple {1610#true} assume true; {1610#true} is VALID [2020-07-17 22:20:16,742 INFO L275 TraceCheckUtils]: 18: Hoare quadruple {1610#true} {1671#(<= 2 |fibo2_#in~n|)} #55#return; {1671#(<= 2 |fibo2_#in~n|)} is VALID [2020-07-17 22:20:16,743 INFO L280 TraceCheckUtils]: 19: Hoare triple {1671#(<= 2 |fibo2_#in~n|)} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647;#res := #t~ret2 + #t~ret3;havoc #t~ret3;havoc #t~ret2; {1671#(<= 2 |fibo2_#in~n|)} is VALID [2020-07-17 22:20:16,745 INFO L280 TraceCheckUtils]: 20: Hoare triple {1671#(<= 2 |fibo2_#in~n|)} assume true; {1671#(<= 2 |fibo2_#in~n|)} is VALID [2020-07-17 22:20:16,747 INFO L275 TraceCheckUtils]: 21: Hoare quadruple {1671#(<= 2 |fibo2_#in~n|)} {1610#true} #57#return; {1664#(<= 3 fibo1_~n)} is VALID [2020-07-17 22:20:16,749 INFO L280 TraceCheckUtils]: 22: Hoare triple {1664#(<= 3 fibo1_~n)} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {1664#(<= 3 fibo1_~n)} is VALID [2020-07-17 22:20:16,749 INFO L263 TraceCheckUtils]: 23: Hoare triple {1664#(<= 3 fibo1_~n)} call #t~ret1 := fibo2(~n - 2); {1610#true} is VALID [2020-07-17 22:20:16,751 INFO L280 TraceCheckUtils]: 24: Hoare triple {1610#true} ~n := #in~n; {1669#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-17 22:20:16,752 INFO L280 TraceCheckUtils]: 25: Hoare triple {1669#(= fibo2_~n |fibo2_#in~n|)} assume ~n < 1;#res := 0; {1681#(<= |fibo2_#in~n| 0)} is VALID [2020-07-17 22:20:16,753 INFO L280 TraceCheckUtils]: 26: Hoare triple {1681#(<= |fibo2_#in~n| 0)} assume true; {1681#(<= |fibo2_#in~n| 0)} is VALID [2020-07-17 22:20:16,755 INFO L275 TraceCheckUtils]: 27: Hoare quadruple {1681#(<= |fibo2_#in~n| 0)} {1664#(<= 3 fibo1_~n)} #59#return; {1611#false} is VALID [2020-07-17 22:20:16,755 INFO L280 TraceCheckUtils]: 28: Hoare triple {1611#false} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647;#res := #t~ret0 + #t~ret1;havoc #t~ret1;havoc #t~ret0; {1611#false} is VALID [2020-07-17 22:20:16,756 INFO L280 TraceCheckUtils]: 29: Hoare triple {1611#false} assume true; {1611#false} is VALID [2020-07-17 22:20:16,756 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {1611#false} {1614#(<= 4 main_~x~0)} #51#return; {1611#false} is VALID [2020-07-17 22:20:16,757 INFO L263 TraceCheckUtils]: 0: Hoare triple {1610#true} call ULTIMATE.init(); {1610#true} is VALID [2020-07-17 22:20:16,758 INFO L280 TraceCheckUtils]: 1: Hoare triple {1610#true} assume true; {1610#true} is VALID [2020-07-17 22:20:16,758 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {1610#true} {1610#true} #47#return; {1610#true} is VALID [2020-07-17 22:20:16,758 INFO L263 TraceCheckUtils]: 3: Hoare triple {1610#true} call #t~ret5 := main(); {1610#true} is VALID [2020-07-17 22:20:16,759 INFO L280 TraceCheckUtils]: 4: Hoare triple {1610#true} ~x~0 := 4; {1614#(<= 4 main_~x~0)} is VALID [2020-07-17 22:20:16,760 INFO L263 TraceCheckUtils]: 5: Hoare triple {1614#(<= 4 main_~x~0)} call #t~ret4 := fibo1(~x~0); {1610#true} is VALID [2020-07-17 22:20:16,760 INFO L280 TraceCheckUtils]: 6: Hoare triple {1610#true} ~n := #in~n; {1610#true} is VALID [2020-07-17 22:20:16,760 INFO L280 TraceCheckUtils]: 7: Hoare triple {1610#true} assume !(~n < 1); {1610#true} is VALID [2020-07-17 22:20:16,760 INFO L280 TraceCheckUtils]: 8: Hoare triple {1610#true} assume !(1 == ~n); {1610#true} is VALID [2020-07-17 22:20:16,760 INFO L263 TraceCheckUtils]: 9: Hoare triple {1610#true} call #t~ret0 := fibo2(~n - 1); {1610#true} is VALID [2020-07-17 22:20:16,761 INFO L280 TraceCheckUtils]: 10: Hoare triple {1610#true} ~n := #in~n; {1669#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-17 22:20:16,763 INFO L280 TraceCheckUtils]: 11: Hoare triple {1669#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {1670#(and (< 0 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} is VALID [2020-07-17 22:20:16,764 INFO L280 TraceCheckUtils]: 12: Hoare triple {1670#(and (< 0 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} assume !(1 == ~n); {1671#(<= 2 |fibo2_#in~n|)} is VALID [2020-07-17 22:20:16,765 INFO L263 TraceCheckUtils]: 13: Hoare triple {1671#(<= 2 |fibo2_#in~n|)} call #t~ret2 := fibo1(~n - 1); {1610#true} is VALID [2020-07-17 22:20:16,765 INFO L280 TraceCheckUtils]: 14: Hoare triple {1610#true} ~n := #in~n; {1610#true} is VALID [2020-07-17 22:20:16,765 INFO L280 TraceCheckUtils]: 15: Hoare triple {1610#true} assume !(~n < 1); {1610#true} is VALID [2020-07-17 22:20:16,766 INFO L280 TraceCheckUtils]: 16: Hoare triple {1610#true} assume 1 == ~n;#res := 1; {1610#true} is VALID [2020-07-17 22:20:16,766 INFO L280 TraceCheckUtils]: 17: Hoare triple {1610#true} assume true; {1610#true} is VALID [2020-07-17 22:20:16,767 INFO L275 TraceCheckUtils]: 18: Hoare quadruple {1610#true} {1671#(<= 2 |fibo2_#in~n|)} #53#return; {1671#(<= 2 |fibo2_#in~n|)} is VALID [2020-07-17 22:20:16,769 INFO L280 TraceCheckUtils]: 19: Hoare triple {1671#(<= 2 |fibo2_#in~n|)} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {1671#(<= 2 |fibo2_#in~n|)} is VALID [2020-07-17 22:20:16,769 INFO L263 TraceCheckUtils]: 20: Hoare triple {1671#(<= 2 |fibo2_#in~n|)} call #t~ret3 := fibo1(~n - 2); {1610#true} is VALID [2020-07-17 22:20:16,769 INFO L280 TraceCheckUtils]: 21: Hoare triple {1610#true} ~n := #in~n; {1610#true} is VALID [2020-07-17 22:20:16,769 INFO L280 TraceCheckUtils]: 22: Hoare triple {1610#true} assume ~n < 1;#res := 0; {1610#true} is VALID [2020-07-17 22:20:16,770 INFO L280 TraceCheckUtils]: 23: Hoare triple {1610#true} assume true; {1610#true} is VALID [2020-07-17 22:20:16,770 INFO L275 TraceCheckUtils]: 24: Hoare quadruple {1610#true} {1671#(<= 2 |fibo2_#in~n|)} #55#return; {1671#(<= 2 |fibo2_#in~n|)} is VALID [2020-07-17 22:20:16,771 INFO L280 TraceCheckUtils]: 25: Hoare triple {1671#(<= 2 |fibo2_#in~n|)} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647;#res := #t~ret2 + #t~ret3;havoc #t~ret3;havoc #t~ret2; {1671#(<= 2 |fibo2_#in~n|)} is VALID [2020-07-17 22:20:16,772 INFO L280 TraceCheckUtils]: 26: Hoare triple {1671#(<= 2 |fibo2_#in~n|)} assume true; {1671#(<= 2 |fibo2_#in~n|)} is VALID [2020-07-17 22:20:16,773 INFO L275 TraceCheckUtils]: 27: Hoare quadruple {1671#(<= 2 |fibo2_#in~n|)} {1610#true} #57#return; {1664#(<= 3 fibo1_~n)} is VALID [2020-07-17 22:20:16,774 INFO L280 TraceCheckUtils]: 28: Hoare triple {1664#(<= 3 fibo1_~n)} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {1664#(<= 3 fibo1_~n)} is VALID [2020-07-17 22:20:16,774 INFO L263 TraceCheckUtils]: 29: Hoare triple {1664#(<= 3 fibo1_~n)} call #t~ret1 := fibo2(~n - 2); {1610#true} is VALID [2020-07-17 22:20:16,775 INFO L280 TraceCheckUtils]: 30: Hoare triple {1610#true} ~n := #in~n; {1669#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-17 22:20:16,775 INFO L280 TraceCheckUtils]: 31: Hoare triple {1669#(= fibo2_~n |fibo2_#in~n|)} assume ~n < 1;#res := 0; {1681#(<= |fibo2_#in~n| 0)} is VALID [2020-07-17 22:20:16,776 INFO L280 TraceCheckUtils]: 32: Hoare triple {1681#(<= |fibo2_#in~n| 0)} assume true; {1681#(<= |fibo2_#in~n| 0)} is VALID [2020-07-17 22:20:16,777 INFO L275 TraceCheckUtils]: 33: Hoare quadruple {1681#(<= |fibo2_#in~n| 0)} {1664#(<= 3 fibo1_~n)} #59#return; {1611#false} is VALID [2020-07-17 22:20:16,777 INFO L280 TraceCheckUtils]: 34: Hoare triple {1611#false} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647;#res := #t~ret0 + #t~ret1;havoc #t~ret1;havoc #t~ret0; {1611#false} is VALID [2020-07-17 22:20:16,778 INFO L280 TraceCheckUtils]: 35: Hoare triple {1611#false} assume true; {1611#false} is VALID [2020-07-17 22:20:16,778 INFO L275 TraceCheckUtils]: 36: Hoare quadruple {1611#false} {1614#(<= 4 main_~x~0)} #51#return; {1611#false} is VALID [2020-07-17 22:20:16,778 INFO L280 TraceCheckUtils]: 37: Hoare triple {1611#false} assume -2147483648 <= #t~ret4 && #t~ret4 <= 2147483647;~result~0 := #t~ret4;havoc #t~ret4; {1611#false} is VALID [2020-07-17 22:20:16,778 INFO L280 TraceCheckUtils]: 38: Hoare triple {1611#false} assume 3 != ~result~0; {1611#false} is VALID [2020-07-17 22:20:16,779 INFO L280 TraceCheckUtils]: 39: Hoare triple {1611#false} assume !false; {1611#false} is VALID [2020-07-17 22:20:16,781 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-07-17 22:20:16,781 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447337105] [2020-07-17 22:20:16,781 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1391694275] [2020-07-17 22:20:16,781 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 22:20:16,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:20:16,815 INFO L264 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-17 22:20:16,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:20:16,828 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-17 22:20:17,017 INFO L263 TraceCheckUtils]: 0: Hoare triple {1610#true} call ULTIMATE.init(); {1610#true} is VALID [2020-07-17 22:20:17,017 INFO L280 TraceCheckUtils]: 1: Hoare triple {1610#true} assume true; {1610#true} is VALID [2020-07-17 22:20:17,018 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {1610#true} {1610#true} #47#return; {1610#true} is VALID [2020-07-17 22:20:17,018 INFO L263 TraceCheckUtils]: 3: Hoare triple {1610#true} call #t~ret5 := main(); {1610#true} is VALID [2020-07-17 22:20:17,019 INFO L280 TraceCheckUtils]: 4: Hoare triple {1610#true} ~x~0 := 4; {1614#(<= 4 main_~x~0)} is VALID [2020-07-17 22:20:17,019 INFO L263 TraceCheckUtils]: 5: Hoare triple {1614#(<= 4 main_~x~0)} call #t~ret4 := fibo1(~x~0); {1610#true} is VALID [2020-07-17 22:20:17,019 INFO L280 TraceCheckUtils]: 6: Hoare triple {1610#true} ~n := #in~n; {1703#(<= |fibo1_#in~n| fibo1_~n)} is VALID [2020-07-17 22:20:17,020 INFO L280 TraceCheckUtils]: 7: Hoare triple {1703#(<= |fibo1_#in~n| fibo1_~n)} assume !(~n < 1); {1703#(<= |fibo1_#in~n| fibo1_~n)} is VALID [2020-07-17 22:20:17,020 INFO L280 TraceCheckUtils]: 8: Hoare triple {1703#(<= |fibo1_#in~n| fibo1_~n)} assume !(1 == ~n); {1703#(<= |fibo1_#in~n| fibo1_~n)} is VALID [2020-07-17 22:20:17,020 INFO L263 TraceCheckUtils]: 9: Hoare triple {1703#(<= |fibo1_#in~n| fibo1_~n)} call #t~ret0 := fibo2(~n - 1); {1610#true} is VALID [2020-07-17 22:20:17,021 INFO L280 TraceCheckUtils]: 10: Hoare triple {1610#true} ~n := #in~n; {1716#(<= |fibo2_#in~n| fibo2_~n)} is VALID [2020-07-17 22:20:17,021 INFO L280 TraceCheckUtils]: 11: Hoare triple {1716#(<= |fibo2_#in~n| fibo2_~n)} assume !(~n < 1); {1716#(<= |fibo2_#in~n| fibo2_~n)} is VALID [2020-07-17 22:20:17,022 INFO L280 TraceCheckUtils]: 12: Hoare triple {1716#(<= |fibo2_#in~n| fibo2_~n)} assume !(1 == ~n); {1716#(<= |fibo2_#in~n| fibo2_~n)} is VALID [2020-07-17 22:20:17,022 INFO L263 TraceCheckUtils]: 13: Hoare triple {1716#(<= |fibo2_#in~n| fibo2_~n)} call #t~ret2 := fibo1(~n - 1); {1610#true} is VALID [2020-07-17 22:20:17,022 INFO L280 TraceCheckUtils]: 14: Hoare triple {1610#true} ~n := #in~n; {1703#(<= |fibo1_#in~n| fibo1_~n)} is VALID [2020-07-17 22:20:17,023 INFO L280 TraceCheckUtils]: 15: Hoare triple {1703#(<= |fibo1_#in~n| fibo1_~n)} assume !(~n < 1); {1703#(<= |fibo1_#in~n| fibo1_~n)} is VALID [2020-07-17 22:20:17,023 INFO L280 TraceCheckUtils]: 16: Hoare triple {1703#(<= |fibo1_#in~n| fibo1_~n)} assume 1 == ~n;#res := 1; {1735#(<= |fibo1_#in~n| 1)} is VALID [2020-07-17 22:20:17,024 INFO L280 TraceCheckUtils]: 17: Hoare triple {1735#(<= |fibo1_#in~n| 1)} assume true; {1735#(<= |fibo1_#in~n| 1)} is VALID [2020-07-17 22:20:17,025 INFO L275 TraceCheckUtils]: 18: Hoare quadruple {1735#(<= |fibo1_#in~n| 1)} {1716#(<= |fibo2_#in~n| fibo2_~n)} #53#return; {1742#(<= |fibo2_#in~n| 2)} is VALID [2020-07-17 22:20:17,025 INFO L280 TraceCheckUtils]: 19: Hoare triple {1742#(<= |fibo2_#in~n| 2)} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {1742#(<= |fibo2_#in~n| 2)} is VALID [2020-07-17 22:20:17,025 INFO L263 TraceCheckUtils]: 20: Hoare triple {1742#(<= |fibo2_#in~n| 2)} call #t~ret3 := fibo1(~n - 2); {1610#true} is VALID [2020-07-17 22:20:17,026 INFO L280 TraceCheckUtils]: 21: Hoare triple {1610#true} ~n := #in~n; {1610#true} is VALID [2020-07-17 22:20:17,026 INFO L280 TraceCheckUtils]: 22: Hoare triple {1610#true} assume ~n < 1;#res := 0; {1610#true} is VALID [2020-07-17 22:20:17,026 INFO L280 TraceCheckUtils]: 23: Hoare triple {1610#true} assume true; {1610#true} is VALID [2020-07-17 22:20:17,027 INFO L275 TraceCheckUtils]: 24: Hoare quadruple {1610#true} {1742#(<= |fibo2_#in~n| 2)} #55#return; {1742#(<= |fibo2_#in~n| 2)} is VALID [2020-07-17 22:20:17,027 INFO L280 TraceCheckUtils]: 25: Hoare triple {1742#(<= |fibo2_#in~n| 2)} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647;#res := #t~ret2 + #t~ret3;havoc #t~ret3;havoc #t~ret2; {1742#(<= |fibo2_#in~n| 2)} is VALID [2020-07-17 22:20:17,028 INFO L280 TraceCheckUtils]: 26: Hoare triple {1742#(<= |fibo2_#in~n| 2)} assume true; {1742#(<= |fibo2_#in~n| 2)} is VALID [2020-07-17 22:20:17,029 INFO L275 TraceCheckUtils]: 27: Hoare quadruple {1742#(<= |fibo2_#in~n| 2)} {1703#(<= |fibo1_#in~n| fibo1_~n)} #57#return; {1770#(<= |fibo1_#in~n| 3)} is VALID [2020-07-17 22:20:17,030 INFO L280 TraceCheckUtils]: 28: Hoare triple {1770#(<= |fibo1_#in~n| 3)} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {1770#(<= |fibo1_#in~n| 3)} is VALID [2020-07-17 22:20:17,030 INFO L263 TraceCheckUtils]: 29: Hoare triple {1770#(<= |fibo1_#in~n| 3)} call #t~ret1 := fibo2(~n - 2); {1610#true} is VALID [2020-07-17 22:20:17,030 INFO L280 TraceCheckUtils]: 30: Hoare triple {1610#true} ~n := #in~n; {1610#true} is VALID [2020-07-17 22:20:17,030 INFO L280 TraceCheckUtils]: 31: Hoare triple {1610#true} assume ~n < 1;#res := 0; {1610#true} is VALID [2020-07-17 22:20:17,030 INFO L280 TraceCheckUtils]: 32: Hoare triple {1610#true} assume true; {1610#true} is VALID [2020-07-17 22:20:17,031 INFO L275 TraceCheckUtils]: 33: Hoare quadruple {1610#true} {1770#(<= |fibo1_#in~n| 3)} #59#return; {1770#(<= |fibo1_#in~n| 3)} is VALID [2020-07-17 22:20:17,031 INFO L280 TraceCheckUtils]: 34: Hoare triple {1770#(<= |fibo1_#in~n| 3)} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647;#res := #t~ret0 + #t~ret1;havoc #t~ret1;havoc #t~ret0; {1770#(<= |fibo1_#in~n| 3)} is VALID [2020-07-17 22:20:17,032 INFO L280 TraceCheckUtils]: 35: Hoare triple {1770#(<= |fibo1_#in~n| 3)} assume true; {1770#(<= |fibo1_#in~n| 3)} is VALID [2020-07-17 22:20:17,033 INFO L275 TraceCheckUtils]: 36: Hoare quadruple {1770#(<= |fibo1_#in~n| 3)} {1614#(<= 4 main_~x~0)} #51#return; {1611#false} is VALID [2020-07-17 22:20:17,033 INFO L280 TraceCheckUtils]: 37: Hoare triple {1611#false} assume -2147483648 <= #t~ret4 && #t~ret4 <= 2147483647;~result~0 := #t~ret4;havoc #t~ret4; {1611#false} is VALID [2020-07-17 22:20:17,033 INFO L280 TraceCheckUtils]: 38: Hoare triple {1611#false} assume 3 != ~result~0; {1611#false} is VALID [2020-07-17 22:20:17,033 INFO L280 TraceCheckUtils]: 39: Hoare triple {1611#false} assume !false; {1611#false} is VALID [2020-07-17 22:20:17,036 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-07-17 22:20:17,037 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-17 22:20:17,037 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2020-07-17 22:20:17,037 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817555119] [2020-07-17 22:20:17,038 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 40 [2020-07-17 22:20:17,039 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-17 22:20:17,039 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 13 states. [2020-07-17 22:20:17,112 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 61 edges. 61 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:20:17,113 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-07-17 22:20:17,113 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 22:20:17,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-07-17 22:20:17,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2020-07-17 22:20:17,114 INFO L87 Difference]: Start difference. First operand 66 states and 95 transitions. Second operand 13 states. [2020-07-17 22:20:18,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:20:18,850 INFO L93 Difference]: Finished difference Result 180 states and 324 transitions. [2020-07-17 22:20:18,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-07-17 22:20:18,851 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 40 [2020-07-17 22:20:18,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 22:20:18,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-07-17 22:20:18,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 133 transitions. [2020-07-17 22:20:18,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-07-17 22:20:18,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 133 transitions. [2020-07-17 22:20:18,863 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 16 states and 133 transitions. [2020-07-17 22:20:19,054 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 133 edges. 133 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:20:19,062 INFO L225 Difference]: With dead ends: 180 [2020-07-17 22:20:19,062 INFO L226 Difference]: Without dead ends: 120 [2020-07-17 22:20:19,064 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=86, Invalid=376, Unknown=0, NotChecked=0, Total=462 [2020-07-17 22:20:19,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2020-07-17 22:20:19,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 106. [2020-07-17 22:20:19,160 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-17 22:20:19,160 INFO L82 GeneralOperation]: Start isEquivalent. First operand 120 states. Second operand 106 states. [2020-07-17 22:20:19,160 INFO L74 IsIncluded]: Start isIncluded. First operand 120 states. Second operand 106 states. [2020-07-17 22:20:19,160 INFO L87 Difference]: Start difference. First operand 120 states. Second operand 106 states. [2020-07-17 22:20:19,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:20:19,172 INFO L93 Difference]: Finished difference Result 120 states and 198 transitions. [2020-07-17 22:20:19,172 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 198 transitions. [2020-07-17 22:20:19,174 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:20:19,174 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:20:19,174 INFO L74 IsIncluded]: Start isIncluded. First operand 106 states. Second operand 120 states. [2020-07-17 22:20:19,174 INFO L87 Difference]: Start difference. First operand 106 states. Second operand 120 states. [2020-07-17 22:20:19,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:20:19,184 INFO L93 Difference]: Finished difference Result 120 states and 198 transitions. [2020-07-17 22:20:19,184 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 198 transitions. [2020-07-17 22:20:19,186 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:20:19,186 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:20:19,186 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-17 22:20:19,186 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-17 22:20:19,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-07-17 22:20:19,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 169 transitions. [2020-07-17 22:20:19,195 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 169 transitions. Word has length 40 [2020-07-17 22:20:19,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 22:20:19,195 INFO L479 AbstractCegarLoop]: Abstraction has 106 states and 169 transitions. [2020-07-17 22:20:19,195 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-07-17 22:20:19,195 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 169 transitions. [2020-07-17 22:20:19,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-07-17 22:20:19,197 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 22:20:19,197 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 22:20:19,410 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 22:20:19,411 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 22:20:19,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 22:20:19,412 INFO L82 PathProgramCache]: Analyzing trace with hash -405677468, now seen corresponding path program 1 times [2020-07-17 22:20:19,413 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 22:20:19,413 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522720499] [2020-07-17 22:20:19,413 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 22:20:19,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:20:19,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:20:19,454 INFO L280 TraceCheckUtils]: 0: Hoare triple {2439#true} assume true; {2439#true} is VALID [2020-07-17 22:20:19,454 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {2439#true} {2439#true} #47#return; {2439#true} is VALID [2020-07-17 22:20:19,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:20:19,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:20:19,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:20:19,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:20:19,592 INFO L280 TraceCheckUtils]: 0: Hoare triple {2439#true} ~n := #in~n; {2439#true} is VALID [2020-07-17 22:20:19,592 INFO L280 TraceCheckUtils]: 1: Hoare triple {2439#true} assume !(~n < 1); {2439#true} is VALID [2020-07-17 22:20:19,592 INFO L280 TraceCheckUtils]: 2: Hoare triple {2439#true} assume 1 == ~n;#res := 1; {2439#true} is VALID [2020-07-17 22:20:19,593 INFO L280 TraceCheckUtils]: 3: Hoare triple {2439#true} assume true; {2439#true} is VALID [2020-07-17 22:20:19,594 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {2439#true} {2550#(<= 2 |fibo1_#in~n|)} #57#return; {2550#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-17 22:20:19,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:20:19,600 INFO L280 TraceCheckUtils]: 0: Hoare triple {2439#true} ~n := #in~n; {2439#true} is VALID [2020-07-17 22:20:19,601 INFO L280 TraceCheckUtils]: 1: Hoare triple {2439#true} assume ~n < 1;#res := 0; {2439#true} is VALID [2020-07-17 22:20:19,601 INFO L280 TraceCheckUtils]: 2: Hoare triple {2439#true} assume true; {2439#true} is VALID [2020-07-17 22:20:19,602 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {2439#true} {2550#(<= 2 |fibo1_#in~n|)} #59#return; {2550#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-17 22:20:19,603 INFO L280 TraceCheckUtils]: 0: Hoare triple {2439#true} ~n := #in~n; {2548#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-17 22:20:19,604 INFO L280 TraceCheckUtils]: 1: Hoare triple {2548#(= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {2549#(and (< 0 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-17 22:20:19,605 INFO L280 TraceCheckUtils]: 2: Hoare triple {2549#(and (< 0 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} assume !(1 == ~n); {2550#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-17 22:20:19,605 INFO L263 TraceCheckUtils]: 3: Hoare triple {2550#(<= 2 |fibo1_#in~n|)} call #t~ret0 := fibo2(~n - 1); {2439#true} is VALID [2020-07-17 22:20:19,605 INFO L280 TraceCheckUtils]: 4: Hoare triple {2439#true} ~n := #in~n; {2439#true} is VALID [2020-07-17 22:20:19,605 INFO L280 TraceCheckUtils]: 5: Hoare triple {2439#true} assume !(~n < 1); {2439#true} is VALID [2020-07-17 22:20:19,606 INFO L280 TraceCheckUtils]: 6: Hoare triple {2439#true} assume 1 == ~n;#res := 1; {2439#true} is VALID [2020-07-17 22:20:19,606 INFO L280 TraceCheckUtils]: 7: Hoare triple {2439#true} assume true; {2439#true} is VALID [2020-07-17 22:20:19,607 INFO L275 TraceCheckUtils]: 8: Hoare quadruple {2439#true} {2550#(<= 2 |fibo1_#in~n|)} #57#return; {2550#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-17 22:20:19,608 INFO L280 TraceCheckUtils]: 9: Hoare triple {2550#(<= 2 |fibo1_#in~n|)} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {2550#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-17 22:20:19,608 INFO L263 TraceCheckUtils]: 10: Hoare triple {2550#(<= 2 |fibo1_#in~n|)} call #t~ret1 := fibo2(~n - 2); {2439#true} is VALID [2020-07-17 22:20:19,608 INFO L280 TraceCheckUtils]: 11: Hoare triple {2439#true} ~n := #in~n; {2439#true} is VALID [2020-07-17 22:20:19,608 INFO L280 TraceCheckUtils]: 12: Hoare triple {2439#true} assume ~n < 1;#res := 0; {2439#true} is VALID [2020-07-17 22:20:19,609 INFO L280 TraceCheckUtils]: 13: Hoare triple {2439#true} assume true; {2439#true} is VALID [2020-07-17 22:20:19,610 INFO L275 TraceCheckUtils]: 14: Hoare quadruple {2439#true} {2550#(<= 2 |fibo1_#in~n|)} #59#return; {2550#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-17 22:20:19,610 INFO L280 TraceCheckUtils]: 15: Hoare triple {2550#(<= 2 |fibo1_#in~n|)} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647;#res := #t~ret0 + #t~ret1;havoc #t~ret1;havoc #t~ret0; {2550#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-17 22:20:19,611 INFO L280 TraceCheckUtils]: 16: Hoare triple {2550#(<= 2 |fibo1_#in~n|)} assume true; {2550#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-17 22:20:19,612 INFO L275 TraceCheckUtils]: 17: Hoare quadruple {2550#(<= 2 |fibo1_#in~n|)} {2439#true} #53#return; {2543#(<= 3 fibo2_~n)} is VALID [2020-07-17 22:20:19,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:20:19,634 INFO L280 TraceCheckUtils]: 0: Hoare triple {2439#true} ~n := #in~n; {2548#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-17 22:20:19,643 INFO L280 TraceCheckUtils]: 1: Hoare triple {2548#(= fibo1_~n |fibo1_#in~n|)} assume ~n < 1;#res := 0; {2560#(<= |fibo1_#in~n| 0)} is VALID [2020-07-17 22:20:19,644 INFO L280 TraceCheckUtils]: 2: Hoare triple {2560#(<= |fibo1_#in~n| 0)} assume true; {2560#(<= |fibo1_#in~n| 0)} is VALID [2020-07-17 22:20:19,645 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {2560#(<= |fibo1_#in~n| 0)} {2543#(<= 3 fibo2_~n)} #55#return; {2440#false} is VALID [2020-07-17 22:20:19,646 INFO L280 TraceCheckUtils]: 0: Hoare triple {2439#true} ~n := #in~n; {2439#true} is VALID [2020-07-17 22:20:19,646 INFO L280 TraceCheckUtils]: 1: Hoare triple {2439#true} assume !(~n < 1); {2439#true} is VALID [2020-07-17 22:20:19,646 INFO L280 TraceCheckUtils]: 2: Hoare triple {2439#true} assume !(1 == ~n); {2439#true} is VALID [2020-07-17 22:20:19,646 INFO L263 TraceCheckUtils]: 3: Hoare triple {2439#true} call #t~ret2 := fibo1(~n - 1); {2439#true} is VALID [2020-07-17 22:20:19,647 INFO L280 TraceCheckUtils]: 4: Hoare triple {2439#true} ~n := #in~n; {2548#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-17 22:20:19,648 INFO L280 TraceCheckUtils]: 5: Hoare triple {2548#(= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {2549#(and (< 0 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-17 22:20:19,649 INFO L280 TraceCheckUtils]: 6: Hoare triple {2549#(and (< 0 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} assume !(1 == ~n); {2550#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-17 22:20:19,650 INFO L263 TraceCheckUtils]: 7: Hoare triple {2550#(<= 2 |fibo1_#in~n|)} call #t~ret0 := fibo2(~n - 1); {2439#true} is VALID [2020-07-17 22:20:19,650 INFO L280 TraceCheckUtils]: 8: Hoare triple {2439#true} ~n := #in~n; {2439#true} is VALID [2020-07-17 22:20:19,650 INFO L280 TraceCheckUtils]: 9: Hoare triple {2439#true} assume !(~n < 1); {2439#true} is VALID [2020-07-17 22:20:19,651 INFO L280 TraceCheckUtils]: 10: Hoare triple {2439#true} assume 1 == ~n;#res := 1; {2439#true} is VALID [2020-07-17 22:20:19,651 INFO L280 TraceCheckUtils]: 11: Hoare triple {2439#true} assume true; {2439#true} is VALID [2020-07-17 22:20:19,652 INFO L275 TraceCheckUtils]: 12: Hoare quadruple {2439#true} {2550#(<= 2 |fibo1_#in~n|)} #57#return; {2550#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-17 22:20:19,653 INFO L280 TraceCheckUtils]: 13: Hoare triple {2550#(<= 2 |fibo1_#in~n|)} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {2550#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-17 22:20:19,653 INFO L263 TraceCheckUtils]: 14: Hoare triple {2550#(<= 2 |fibo1_#in~n|)} call #t~ret1 := fibo2(~n - 2); {2439#true} is VALID [2020-07-17 22:20:19,653 INFO L280 TraceCheckUtils]: 15: Hoare triple {2439#true} ~n := #in~n; {2439#true} is VALID [2020-07-17 22:20:19,654 INFO L280 TraceCheckUtils]: 16: Hoare triple {2439#true} assume ~n < 1;#res := 0; {2439#true} is VALID [2020-07-17 22:20:19,654 INFO L280 TraceCheckUtils]: 17: Hoare triple {2439#true} assume true; {2439#true} is VALID [2020-07-17 22:20:19,655 INFO L275 TraceCheckUtils]: 18: Hoare quadruple {2439#true} {2550#(<= 2 |fibo1_#in~n|)} #59#return; {2550#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-17 22:20:19,655 INFO L280 TraceCheckUtils]: 19: Hoare triple {2550#(<= 2 |fibo1_#in~n|)} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647;#res := #t~ret0 + #t~ret1;havoc #t~ret1;havoc #t~ret0; {2550#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-17 22:20:19,656 INFO L280 TraceCheckUtils]: 20: Hoare triple {2550#(<= 2 |fibo1_#in~n|)} assume true; {2550#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-17 22:20:19,657 INFO L275 TraceCheckUtils]: 21: Hoare quadruple {2550#(<= 2 |fibo1_#in~n|)} {2439#true} #53#return; {2543#(<= 3 fibo2_~n)} is VALID [2020-07-17 22:20:19,658 INFO L280 TraceCheckUtils]: 22: Hoare triple {2543#(<= 3 fibo2_~n)} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {2543#(<= 3 fibo2_~n)} is VALID [2020-07-17 22:20:19,658 INFO L263 TraceCheckUtils]: 23: Hoare triple {2543#(<= 3 fibo2_~n)} call #t~ret3 := fibo1(~n - 2); {2439#true} is VALID [2020-07-17 22:20:19,659 INFO L280 TraceCheckUtils]: 24: Hoare triple {2439#true} ~n := #in~n; {2548#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-17 22:20:19,660 INFO L280 TraceCheckUtils]: 25: Hoare triple {2548#(= fibo1_~n |fibo1_#in~n|)} assume ~n < 1;#res := 0; {2560#(<= |fibo1_#in~n| 0)} is VALID [2020-07-17 22:20:19,661 INFO L280 TraceCheckUtils]: 26: Hoare triple {2560#(<= |fibo1_#in~n| 0)} assume true; {2560#(<= |fibo1_#in~n| 0)} is VALID [2020-07-17 22:20:19,662 INFO L275 TraceCheckUtils]: 27: Hoare quadruple {2560#(<= |fibo1_#in~n| 0)} {2543#(<= 3 fibo2_~n)} #55#return; {2440#false} is VALID [2020-07-17 22:20:19,662 INFO L280 TraceCheckUtils]: 28: Hoare triple {2440#false} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647;#res := #t~ret2 + #t~ret3;havoc #t~ret3;havoc #t~ret2; {2440#false} is VALID [2020-07-17 22:20:19,663 INFO L280 TraceCheckUtils]: 29: Hoare triple {2440#false} assume true; {2440#false} is VALID [2020-07-17 22:20:19,663 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {2440#false} {2439#true} #57#return; {2440#false} is VALID [2020-07-17 22:20:19,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:20:19,671 INFO L280 TraceCheckUtils]: 0: Hoare triple {2439#true} ~n := #in~n; {2439#true} is VALID [2020-07-17 22:20:19,671 INFO L280 TraceCheckUtils]: 1: Hoare triple {2439#true} assume !(~n < 1); {2439#true} is VALID [2020-07-17 22:20:19,672 INFO L280 TraceCheckUtils]: 2: Hoare triple {2439#true} assume 1 == ~n;#res := 1; {2439#true} is VALID [2020-07-17 22:20:19,672 INFO L280 TraceCheckUtils]: 3: Hoare triple {2439#true} assume true; {2439#true} is VALID [2020-07-17 22:20:19,672 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {2439#true} {2440#false} #59#return; {2440#false} is VALID [2020-07-17 22:20:19,673 INFO L280 TraceCheckUtils]: 0: Hoare triple {2439#true} ~n := #in~n; {2439#true} is VALID [2020-07-17 22:20:19,673 INFO L280 TraceCheckUtils]: 1: Hoare triple {2439#true} assume !(~n < 1); {2439#true} is VALID [2020-07-17 22:20:19,673 INFO L280 TraceCheckUtils]: 2: Hoare triple {2439#true} assume !(1 == ~n); {2439#true} is VALID [2020-07-17 22:20:19,674 INFO L263 TraceCheckUtils]: 3: Hoare triple {2439#true} call #t~ret0 := fibo2(~n - 1); {2439#true} is VALID [2020-07-17 22:20:19,674 INFO L280 TraceCheckUtils]: 4: Hoare triple {2439#true} ~n := #in~n; {2439#true} is VALID [2020-07-17 22:20:19,674 INFO L280 TraceCheckUtils]: 5: Hoare triple {2439#true} assume !(~n < 1); {2439#true} is VALID [2020-07-17 22:20:19,674 INFO L280 TraceCheckUtils]: 6: Hoare triple {2439#true} assume !(1 == ~n); {2439#true} is VALID [2020-07-17 22:20:19,674 INFO L263 TraceCheckUtils]: 7: Hoare triple {2439#true} call #t~ret2 := fibo1(~n - 1); {2439#true} is VALID [2020-07-17 22:20:19,676 INFO L280 TraceCheckUtils]: 8: Hoare triple {2439#true} ~n := #in~n; {2548#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-17 22:20:19,677 INFO L280 TraceCheckUtils]: 9: Hoare triple {2548#(= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {2549#(and (< 0 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-17 22:20:19,679 INFO L280 TraceCheckUtils]: 10: Hoare triple {2549#(and (< 0 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} assume !(1 == ~n); {2550#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-17 22:20:19,680 INFO L263 TraceCheckUtils]: 11: Hoare triple {2550#(<= 2 |fibo1_#in~n|)} call #t~ret0 := fibo2(~n - 1); {2439#true} is VALID [2020-07-17 22:20:19,680 INFO L280 TraceCheckUtils]: 12: Hoare triple {2439#true} ~n := #in~n; {2439#true} is VALID [2020-07-17 22:20:19,681 INFO L280 TraceCheckUtils]: 13: Hoare triple {2439#true} assume !(~n < 1); {2439#true} is VALID [2020-07-17 22:20:19,681 INFO L280 TraceCheckUtils]: 14: Hoare triple {2439#true} assume 1 == ~n;#res := 1; {2439#true} is VALID [2020-07-17 22:20:19,681 INFO L280 TraceCheckUtils]: 15: Hoare triple {2439#true} assume true; {2439#true} is VALID [2020-07-17 22:20:19,683 INFO L275 TraceCheckUtils]: 16: Hoare quadruple {2439#true} {2550#(<= 2 |fibo1_#in~n|)} #57#return; {2550#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-17 22:20:19,685 INFO L280 TraceCheckUtils]: 17: Hoare triple {2550#(<= 2 |fibo1_#in~n|)} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {2550#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-17 22:20:19,686 INFO L263 TraceCheckUtils]: 18: Hoare triple {2550#(<= 2 |fibo1_#in~n|)} call #t~ret1 := fibo2(~n - 2); {2439#true} is VALID [2020-07-17 22:20:19,686 INFO L280 TraceCheckUtils]: 19: Hoare triple {2439#true} ~n := #in~n; {2439#true} is VALID [2020-07-17 22:20:19,686 INFO L280 TraceCheckUtils]: 20: Hoare triple {2439#true} assume ~n < 1;#res := 0; {2439#true} is VALID [2020-07-17 22:20:19,686 INFO L280 TraceCheckUtils]: 21: Hoare triple {2439#true} assume true; {2439#true} is VALID [2020-07-17 22:20:19,688 INFO L275 TraceCheckUtils]: 22: Hoare quadruple {2439#true} {2550#(<= 2 |fibo1_#in~n|)} #59#return; {2550#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-17 22:20:19,690 INFO L280 TraceCheckUtils]: 23: Hoare triple {2550#(<= 2 |fibo1_#in~n|)} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647;#res := #t~ret0 + #t~ret1;havoc #t~ret1;havoc #t~ret0; {2550#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-17 22:20:19,691 INFO L280 TraceCheckUtils]: 24: Hoare triple {2550#(<= 2 |fibo1_#in~n|)} assume true; {2550#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-17 22:20:19,693 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {2550#(<= 2 |fibo1_#in~n|)} {2439#true} #53#return; {2543#(<= 3 fibo2_~n)} is VALID [2020-07-17 22:20:19,695 INFO L280 TraceCheckUtils]: 26: Hoare triple {2543#(<= 3 fibo2_~n)} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {2543#(<= 3 fibo2_~n)} is VALID [2020-07-17 22:20:19,695 INFO L263 TraceCheckUtils]: 27: Hoare triple {2543#(<= 3 fibo2_~n)} call #t~ret3 := fibo1(~n - 2); {2439#true} is VALID [2020-07-17 22:20:19,696 INFO L280 TraceCheckUtils]: 28: Hoare triple {2439#true} ~n := #in~n; {2548#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-17 22:20:19,698 INFO L280 TraceCheckUtils]: 29: Hoare triple {2548#(= fibo1_~n |fibo1_#in~n|)} assume ~n < 1;#res := 0; {2560#(<= |fibo1_#in~n| 0)} is VALID [2020-07-17 22:20:19,699 INFO L280 TraceCheckUtils]: 30: Hoare triple {2560#(<= |fibo1_#in~n| 0)} assume true; {2560#(<= |fibo1_#in~n| 0)} is VALID [2020-07-17 22:20:19,701 INFO L275 TraceCheckUtils]: 31: Hoare quadruple {2560#(<= |fibo1_#in~n| 0)} {2543#(<= 3 fibo2_~n)} #55#return; {2440#false} is VALID [2020-07-17 22:20:19,702 INFO L280 TraceCheckUtils]: 32: Hoare triple {2440#false} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647;#res := #t~ret2 + #t~ret3;havoc #t~ret3;havoc #t~ret2; {2440#false} is VALID [2020-07-17 22:20:19,702 INFO L280 TraceCheckUtils]: 33: Hoare triple {2440#false} assume true; {2440#false} is VALID [2020-07-17 22:20:19,703 INFO L275 TraceCheckUtils]: 34: Hoare quadruple {2440#false} {2439#true} #57#return; {2440#false} is VALID [2020-07-17 22:20:19,703 INFO L280 TraceCheckUtils]: 35: Hoare triple {2440#false} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {2440#false} is VALID [2020-07-17 22:20:19,703 INFO L263 TraceCheckUtils]: 36: Hoare triple {2440#false} call #t~ret1 := fibo2(~n - 2); {2439#true} is VALID [2020-07-17 22:20:19,704 INFO L280 TraceCheckUtils]: 37: Hoare triple {2439#true} ~n := #in~n; {2439#true} is VALID [2020-07-17 22:20:19,704 INFO L280 TraceCheckUtils]: 38: Hoare triple {2439#true} assume !(~n < 1); {2439#true} is VALID [2020-07-17 22:20:19,704 INFO L280 TraceCheckUtils]: 39: Hoare triple {2439#true} assume 1 == ~n;#res := 1; {2439#true} is VALID [2020-07-17 22:20:19,704 INFO L280 TraceCheckUtils]: 40: Hoare triple {2439#true} assume true; {2439#true} is VALID [2020-07-17 22:20:19,705 INFO L275 TraceCheckUtils]: 41: Hoare quadruple {2439#true} {2440#false} #59#return; {2440#false} is VALID [2020-07-17 22:20:19,705 INFO L280 TraceCheckUtils]: 42: Hoare triple {2440#false} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647;#res := #t~ret0 + #t~ret1;havoc #t~ret1;havoc #t~ret0; {2440#false} is VALID [2020-07-17 22:20:19,705 INFO L280 TraceCheckUtils]: 43: Hoare triple {2440#false} assume true; {2440#false} is VALID [2020-07-17 22:20:19,706 INFO L275 TraceCheckUtils]: 44: Hoare quadruple {2440#false} {2443#(<= 4 main_~x~0)} #51#return; {2440#false} is VALID [2020-07-17 22:20:19,708 INFO L263 TraceCheckUtils]: 0: Hoare triple {2439#true} call ULTIMATE.init(); {2439#true} is VALID [2020-07-17 22:20:19,708 INFO L280 TraceCheckUtils]: 1: Hoare triple {2439#true} assume true; {2439#true} is VALID [2020-07-17 22:20:19,708 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {2439#true} {2439#true} #47#return; {2439#true} is VALID [2020-07-17 22:20:19,708 INFO L263 TraceCheckUtils]: 3: Hoare triple {2439#true} call #t~ret5 := main(); {2439#true} is VALID [2020-07-17 22:20:19,709 INFO L280 TraceCheckUtils]: 4: Hoare triple {2439#true} ~x~0 := 4; {2443#(<= 4 main_~x~0)} is VALID [2020-07-17 22:20:19,710 INFO L263 TraceCheckUtils]: 5: Hoare triple {2443#(<= 4 main_~x~0)} call #t~ret4 := fibo1(~x~0); {2439#true} is VALID [2020-07-17 22:20:19,710 INFO L280 TraceCheckUtils]: 6: Hoare triple {2439#true} ~n := #in~n; {2439#true} is VALID [2020-07-17 22:20:19,710 INFO L280 TraceCheckUtils]: 7: Hoare triple {2439#true} assume !(~n < 1); {2439#true} is VALID [2020-07-17 22:20:19,710 INFO L280 TraceCheckUtils]: 8: Hoare triple {2439#true} assume !(1 == ~n); {2439#true} is VALID [2020-07-17 22:20:19,710 INFO L263 TraceCheckUtils]: 9: Hoare triple {2439#true} call #t~ret0 := fibo2(~n - 1); {2439#true} is VALID [2020-07-17 22:20:19,711 INFO L280 TraceCheckUtils]: 10: Hoare triple {2439#true} ~n := #in~n; {2439#true} is VALID [2020-07-17 22:20:19,711 INFO L280 TraceCheckUtils]: 11: Hoare triple {2439#true} assume !(~n < 1); {2439#true} is VALID [2020-07-17 22:20:19,711 INFO L280 TraceCheckUtils]: 12: Hoare triple {2439#true} assume !(1 == ~n); {2439#true} is VALID [2020-07-17 22:20:19,711 INFO L263 TraceCheckUtils]: 13: Hoare triple {2439#true} call #t~ret2 := fibo1(~n - 1); {2439#true} is VALID [2020-07-17 22:20:19,712 INFO L280 TraceCheckUtils]: 14: Hoare triple {2439#true} ~n := #in~n; {2548#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-17 22:20:19,713 INFO L280 TraceCheckUtils]: 15: Hoare triple {2548#(= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {2549#(and (< 0 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-17 22:20:19,714 INFO L280 TraceCheckUtils]: 16: Hoare triple {2549#(and (< 0 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} assume !(1 == ~n); {2550#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-17 22:20:19,714 INFO L263 TraceCheckUtils]: 17: Hoare triple {2550#(<= 2 |fibo1_#in~n|)} call #t~ret0 := fibo2(~n - 1); {2439#true} is VALID [2020-07-17 22:20:19,714 INFO L280 TraceCheckUtils]: 18: Hoare triple {2439#true} ~n := #in~n; {2439#true} is VALID [2020-07-17 22:20:19,714 INFO L280 TraceCheckUtils]: 19: Hoare triple {2439#true} assume !(~n < 1); {2439#true} is VALID [2020-07-17 22:20:19,715 INFO L280 TraceCheckUtils]: 20: Hoare triple {2439#true} assume 1 == ~n;#res := 1; {2439#true} is VALID [2020-07-17 22:20:19,715 INFO L280 TraceCheckUtils]: 21: Hoare triple {2439#true} assume true; {2439#true} is VALID [2020-07-17 22:20:19,716 INFO L275 TraceCheckUtils]: 22: Hoare quadruple {2439#true} {2550#(<= 2 |fibo1_#in~n|)} #57#return; {2550#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-17 22:20:19,716 INFO L280 TraceCheckUtils]: 23: Hoare triple {2550#(<= 2 |fibo1_#in~n|)} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {2550#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-17 22:20:19,716 INFO L263 TraceCheckUtils]: 24: Hoare triple {2550#(<= 2 |fibo1_#in~n|)} call #t~ret1 := fibo2(~n - 2); {2439#true} is VALID [2020-07-17 22:20:19,717 INFO L280 TraceCheckUtils]: 25: Hoare triple {2439#true} ~n := #in~n; {2439#true} is VALID [2020-07-17 22:20:19,717 INFO L280 TraceCheckUtils]: 26: Hoare triple {2439#true} assume ~n < 1;#res := 0; {2439#true} is VALID [2020-07-17 22:20:19,717 INFO L280 TraceCheckUtils]: 27: Hoare triple {2439#true} assume true; {2439#true} is VALID [2020-07-17 22:20:19,718 INFO L275 TraceCheckUtils]: 28: Hoare quadruple {2439#true} {2550#(<= 2 |fibo1_#in~n|)} #59#return; {2550#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-17 22:20:19,718 INFO L280 TraceCheckUtils]: 29: Hoare triple {2550#(<= 2 |fibo1_#in~n|)} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647;#res := #t~ret0 + #t~ret1;havoc #t~ret1;havoc #t~ret0; {2550#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-17 22:20:19,719 INFO L280 TraceCheckUtils]: 30: Hoare triple {2550#(<= 2 |fibo1_#in~n|)} assume true; {2550#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-17 22:20:19,720 INFO L275 TraceCheckUtils]: 31: Hoare quadruple {2550#(<= 2 |fibo1_#in~n|)} {2439#true} #53#return; {2543#(<= 3 fibo2_~n)} is VALID [2020-07-17 22:20:19,721 INFO L280 TraceCheckUtils]: 32: Hoare triple {2543#(<= 3 fibo2_~n)} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {2543#(<= 3 fibo2_~n)} is VALID [2020-07-17 22:20:19,721 INFO L263 TraceCheckUtils]: 33: Hoare triple {2543#(<= 3 fibo2_~n)} call #t~ret3 := fibo1(~n - 2); {2439#true} is VALID [2020-07-17 22:20:19,722 INFO L280 TraceCheckUtils]: 34: Hoare triple {2439#true} ~n := #in~n; {2548#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-17 22:20:19,722 INFO L280 TraceCheckUtils]: 35: Hoare triple {2548#(= fibo1_~n |fibo1_#in~n|)} assume ~n < 1;#res := 0; {2560#(<= |fibo1_#in~n| 0)} is VALID [2020-07-17 22:20:19,723 INFO L280 TraceCheckUtils]: 36: Hoare triple {2560#(<= |fibo1_#in~n| 0)} assume true; {2560#(<= |fibo1_#in~n| 0)} is VALID [2020-07-17 22:20:19,724 INFO L275 TraceCheckUtils]: 37: Hoare quadruple {2560#(<= |fibo1_#in~n| 0)} {2543#(<= 3 fibo2_~n)} #55#return; {2440#false} is VALID [2020-07-17 22:20:19,725 INFO L280 TraceCheckUtils]: 38: Hoare triple {2440#false} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647;#res := #t~ret2 + #t~ret3;havoc #t~ret3;havoc #t~ret2; {2440#false} is VALID [2020-07-17 22:20:19,725 INFO L280 TraceCheckUtils]: 39: Hoare triple {2440#false} assume true; {2440#false} is VALID [2020-07-17 22:20:19,725 INFO L275 TraceCheckUtils]: 40: Hoare quadruple {2440#false} {2439#true} #57#return; {2440#false} is VALID [2020-07-17 22:20:19,726 INFO L280 TraceCheckUtils]: 41: Hoare triple {2440#false} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {2440#false} is VALID [2020-07-17 22:20:19,726 INFO L263 TraceCheckUtils]: 42: Hoare triple {2440#false} call #t~ret1 := fibo2(~n - 2); {2439#true} is VALID [2020-07-17 22:20:19,726 INFO L280 TraceCheckUtils]: 43: Hoare triple {2439#true} ~n := #in~n; {2439#true} is VALID [2020-07-17 22:20:19,727 INFO L280 TraceCheckUtils]: 44: Hoare triple {2439#true} assume !(~n < 1); {2439#true} is VALID [2020-07-17 22:20:19,727 INFO L280 TraceCheckUtils]: 45: Hoare triple {2439#true} assume 1 == ~n;#res := 1; {2439#true} is VALID [2020-07-17 22:20:19,727 INFO L280 TraceCheckUtils]: 46: Hoare triple {2439#true} assume true; {2439#true} is VALID [2020-07-17 22:20:19,727 INFO L275 TraceCheckUtils]: 47: Hoare quadruple {2439#true} {2440#false} #59#return; {2440#false} is VALID [2020-07-17 22:20:19,727 INFO L280 TraceCheckUtils]: 48: Hoare triple {2440#false} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647;#res := #t~ret0 + #t~ret1;havoc #t~ret1;havoc #t~ret0; {2440#false} is VALID [2020-07-17 22:20:19,728 INFO L280 TraceCheckUtils]: 49: Hoare triple {2440#false} assume true; {2440#false} is VALID [2020-07-17 22:20:19,728 INFO L275 TraceCheckUtils]: 50: Hoare quadruple {2440#false} {2443#(<= 4 main_~x~0)} #51#return; {2440#false} is VALID [2020-07-17 22:20:19,728 INFO L280 TraceCheckUtils]: 51: Hoare triple {2440#false} assume -2147483648 <= #t~ret4 && #t~ret4 <= 2147483647;~result~0 := #t~ret4;havoc #t~ret4; {2440#false} is VALID [2020-07-17 22:20:19,728 INFO L280 TraceCheckUtils]: 52: Hoare triple {2440#false} assume 3 != ~result~0; {2440#false} is VALID [2020-07-17 22:20:19,728 INFO L280 TraceCheckUtils]: 53: Hoare triple {2440#false} assume !false; {2440#false} is VALID [2020-07-17 22:20:19,731 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 15 proven. 4 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-07-17 22:20:19,731 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522720499] [2020-07-17 22:20:19,731 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1932976833] [2020-07-17 22:20:19,731 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 22:20:19,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:20:19,777 INFO L264 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-17 22:20:19,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:20:19,788 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-17 22:20:19,964 INFO L263 TraceCheckUtils]: 0: Hoare triple {2439#true} call ULTIMATE.init(); {2439#true} is VALID [2020-07-17 22:20:19,965 INFO L280 TraceCheckUtils]: 1: Hoare triple {2439#true} assume true; {2439#true} is VALID [2020-07-17 22:20:19,965 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {2439#true} {2439#true} #47#return; {2439#true} is VALID [2020-07-17 22:20:19,965 INFO L263 TraceCheckUtils]: 3: Hoare triple {2439#true} call #t~ret5 := main(); {2439#true} is VALID [2020-07-17 22:20:19,966 INFO L280 TraceCheckUtils]: 4: Hoare triple {2439#true} ~x~0 := 4; {2443#(<= 4 main_~x~0)} is VALID [2020-07-17 22:20:19,966 INFO L263 TraceCheckUtils]: 5: Hoare triple {2443#(<= 4 main_~x~0)} call #t~ret4 := fibo1(~x~0); {2439#true} is VALID [2020-07-17 22:20:19,966 INFO L280 TraceCheckUtils]: 6: Hoare triple {2439#true} ~n := #in~n; {2582#(<= |fibo1_#in~n| fibo1_~n)} is VALID [2020-07-17 22:20:19,967 INFO L280 TraceCheckUtils]: 7: Hoare triple {2582#(<= |fibo1_#in~n| fibo1_~n)} assume !(~n < 1); {2582#(<= |fibo1_#in~n| fibo1_~n)} is VALID [2020-07-17 22:20:19,967 INFO L280 TraceCheckUtils]: 8: Hoare triple {2582#(<= |fibo1_#in~n| fibo1_~n)} assume !(1 == ~n); {2582#(<= |fibo1_#in~n| fibo1_~n)} is VALID [2020-07-17 22:20:19,967 INFO L263 TraceCheckUtils]: 9: Hoare triple {2582#(<= |fibo1_#in~n| fibo1_~n)} call #t~ret0 := fibo2(~n - 1); {2439#true} is VALID [2020-07-17 22:20:19,968 INFO L280 TraceCheckUtils]: 10: Hoare triple {2439#true} ~n := #in~n; {2595#(<= |fibo2_#in~n| fibo2_~n)} is VALID [2020-07-17 22:20:19,968 INFO L280 TraceCheckUtils]: 11: Hoare triple {2595#(<= |fibo2_#in~n| fibo2_~n)} assume !(~n < 1); {2595#(<= |fibo2_#in~n| fibo2_~n)} is VALID [2020-07-17 22:20:19,968 INFO L280 TraceCheckUtils]: 12: Hoare triple {2595#(<= |fibo2_#in~n| fibo2_~n)} assume !(1 == ~n); {2595#(<= |fibo2_#in~n| fibo2_~n)} is VALID [2020-07-17 22:20:19,969 INFO L263 TraceCheckUtils]: 13: Hoare triple {2595#(<= |fibo2_#in~n| fibo2_~n)} call #t~ret2 := fibo1(~n - 1); {2439#true} is VALID [2020-07-17 22:20:19,969 INFO L280 TraceCheckUtils]: 14: Hoare triple {2439#true} ~n := #in~n; {2439#true} is VALID [2020-07-17 22:20:19,969 INFO L280 TraceCheckUtils]: 15: Hoare triple {2439#true} assume !(~n < 1); {2439#true} is VALID [2020-07-17 22:20:19,969 INFO L280 TraceCheckUtils]: 16: Hoare triple {2439#true} assume !(1 == ~n); {2439#true} is VALID [2020-07-17 22:20:19,969 INFO L263 TraceCheckUtils]: 17: Hoare triple {2439#true} call #t~ret0 := fibo2(~n - 1); {2439#true} is VALID [2020-07-17 22:20:19,969 INFO L280 TraceCheckUtils]: 18: Hoare triple {2439#true} ~n := #in~n; {2439#true} is VALID [2020-07-17 22:20:19,969 INFO L280 TraceCheckUtils]: 19: Hoare triple {2439#true} assume !(~n < 1); {2439#true} is VALID [2020-07-17 22:20:19,970 INFO L280 TraceCheckUtils]: 20: Hoare triple {2439#true} assume 1 == ~n;#res := 1; {2439#true} is VALID [2020-07-17 22:20:19,970 INFO L280 TraceCheckUtils]: 21: Hoare triple {2439#true} assume true; {2439#true} is VALID [2020-07-17 22:20:19,970 INFO L275 TraceCheckUtils]: 22: Hoare quadruple {2439#true} {2439#true} #57#return; {2439#true} is VALID [2020-07-17 22:20:19,970 INFO L280 TraceCheckUtils]: 23: Hoare triple {2439#true} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {2439#true} is VALID [2020-07-17 22:20:19,970 INFO L263 TraceCheckUtils]: 24: Hoare triple {2439#true} call #t~ret1 := fibo2(~n - 2); {2439#true} is VALID [2020-07-17 22:20:19,970 INFO L280 TraceCheckUtils]: 25: Hoare triple {2439#true} ~n := #in~n; {2439#true} is VALID [2020-07-17 22:20:19,970 INFO L280 TraceCheckUtils]: 26: Hoare triple {2439#true} assume ~n < 1;#res := 0; {2439#true} is VALID [2020-07-17 22:20:19,971 INFO L280 TraceCheckUtils]: 27: Hoare triple {2439#true} assume true; {2439#true} is VALID [2020-07-17 22:20:19,971 INFO L275 TraceCheckUtils]: 28: Hoare quadruple {2439#true} {2439#true} #59#return; {2439#true} is VALID [2020-07-17 22:20:19,971 INFO L280 TraceCheckUtils]: 29: Hoare triple {2439#true} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647;#res := #t~ret0 + #t~ret1;havoc #t~ret1;havoc #t~ret0; {2439#true} is VALID [2020-07-17 22:20:19,971 INFO L280 TraceCheckUtils]: 30: Hoare triple {2439#true} assume true; {2439#true} is VALID [2020-07-17 22:20:19,972 INFO L275 TraceCheckUtils]: 31: Hoare quadruple {2439#true} {2595#(<= |fibo2_#in~n| fibo2_~n)} #53#return; {2595#(<= |fibo2_#in~n| fibo2_~n)} is VALID [2020-07-17 22:20:19,972 INFO L280 TraceCheckUtils]: 32: Hoare triple {2595#(<= |fibo2_#in~n| fibo2_~n)} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {2595#(<= |fibo2_#in~n| fibo2_~n)} is VALID [2020-07-17 22:20:19,972 INFO L263 TraceCheckUtils]: 33: Hoare triple {2595#(<= |fibo2_#in~n| fibo2_~n)} call #t~ret3 := fibo1(~n - 2); {2439#true} is VALID [2020-07-17 22:20:19,978 INFO L280 TraceCheckUtils]: 34: Hoare triple {2439#true} ~n := #in~n; {2582#(<= |fibo1_#in~n| fibo1_~n)} is VALID [2020-07-17 22:20:19,980 INFO L280 TraceCheckUtils]: 35: Hoare triple {2582#(<= |fibo1_#in~n| fibo1_~n)} assume ~n < 1;#res := 0; {2560#(<= |fibo1_#in~n| 0)} is VALID [2020-07-17 22:20:19,980 INFO L280 TraceCheckUtils]: 36: Hoare triple {2560#(<= |fibo1_#in~n| 0)} assume true; {2560#(<= |fibo1_#in~n| 0)} is VALID [2020-07-17 22:20:19,982 INFO L275 TraceCheckUtils]: 37: Hoare quadruple {2560#(<= |fibo1_#in~n| 0)} {2595#(<= |fibo2_#in~n| fibo2_~n)} #55#return; {2677#(<= |fibo2_#in~n| 2)} is VALID [2020-07-17 22:20:19,982 INFO L280 TraceCheckUtils]: 38: Hoare triple {2677#(<= |fibo2_#in~n| 2)} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647;#res := #t~ret2 + #t~ret3;havoc #t~ret3;havoc #t~ret2; {2677#(<= |fibo2_#in~n| 2)} is VALID [2020-07-17 22:20:19,983 INFO L280 TraceCheckUtils]: 39: Hoare triple {2677#(<= |fibo2_#in~n| 2)} assume true; {2677#(<= |fibo2_#in~n| 2)} is VALID [2020-07-17 22:20:19,983 INFO L275 TraceCheckUtils]: 40: Hoare quadruple {2677#(<= |fibo2_#in~n| 2)} {2582#(<= |fibo1_#in~n| fibo1_~n)} #57#return; {2687#(<= |fibo1_#in~n| 3)} is VALID [2020-07-17 22:20:19,989 INFO L280 TraceCheckUtils]: 41: Hoare triple {2687#(<= |fibo1_#in~n| 3)} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {2687#(<= |fibo1_#in~n| 3)} is VALID [2020-07-17 22:20:19,990 INFO L263 TraceCheckUtils]: 42: Hoare triple {2687#(<= |fibo1_#in~n| 3)} call #t~ret1 := fibo2(~n - 2); {2439#true} is VALID [2020-07-17 22:20:19,990 INFO L280 TraceCheckUtils]: 43: Hoare triple {2439#true} ~n := #in~n; {2439#true} is VALID [2020-07-17 22:20:19,990 INFO L280 TraceCheckUtils]: 44: Hoare triple {2439#true} assume !(~n < 1); {2439#true} is VALID [2020-07-17 22:20:19,990 INFO L280 TraceCheckUtils]: 45: Hoare triple {2439#true} assume 1 == ~n;#res := 1; {2439#true} is VALID [2020-07-17 22:20:19,990 INFO L280 TraceCheckUtils]: 46: Hoare triple {2439#true} assume true; {2439#true} is VALID [2020-07-17 22:20:19,991 INFO L275 TraceCheckUtils]: 47: Hoare quadruple {2439#true} {2687#(<= |fibo1_#in~n| 3)} #59#return; {2687#(<= |fibo1_#in~n| 3)} is VALID [2020-07-17 22:20:19,992 INFO L280 TraceCheckUtils]: 48: Hoare triple {2687#(<= |fibo1_#in~n| 3)} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647;#res := #t~ret0 + #t~ret1;havoc #t~ret1;havoc #t~ret0; {2687#(<= |fibo1_#in~n| 3)} is VALID [2020-07-17 22:20:19,993 INFO L280 TraceCheckUtils]: 49: Hoare triple {2687#(<= |fibo1_#in~n| 3)} assume true; {2687#(<= |fibo1_#in~n| 3)} is VALID [2020-07-17 22:20:19,994 INFO L275 TraceCheckUtils]: 50: Hoare quadruple {2687#(<= |fibo1_#in~n| 3)} {2443#(<= 4 main_~x~0)} #51#return; {2440#false} is VALID [2020-07-17 22:20:19,994 INFO L280 TraceCheckUtils]: 51: Hoare triple {2440#false} assume -2147483648 <= #t~ret4 && #t~ret4 <= 2147483647;~result~0 := #t~ret4;havoc #t~ret4; {2440#false} is VALID [2020-07-17 22:20:19,994 INFO L280 TraceCheckUtils]: 52: Hoare triple {2440#false} assume 3 != ~result~0; {2440#false} is VALID [2020-07-17 22:20:19,994 INFO L280 TraceCheckUtils]: 53: Hoare triple {2440#false} assume !false; {2440#false} is VALID [2020-07-17 22:20:19,997 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 12 proven. 12 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-07-17 22:20:19,997 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-17 22:20:19,997 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2020-07-17 22:20:19,997 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967705092] [2020-07-17 22:20:19,998 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 54 [2020-07-17 22:20:19,999 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-17 22:20:19,999 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 12 states. [2020-07-17 22:20:20,081 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 73 edges. 73 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:20:20,081 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-17 22:20:20,082 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 22:20:20,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-17 22:20:20,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-07-17 22:20:20,083 INFO L87 Difference]: Start difference. First operand 106 states and 169 transitions. Second operand 12 states. [2020-07-17 22:20:21,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:20:21,689 INFO L93 Difference]: Finished difference Result 265 states and 511 transitions. [2020-07-17 22:20:21,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-07-17 22:20:21,689 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 54 [2020-07-17 22:20:21,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 22:20:21,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-07-17 22:20:21,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 122 transitions. [2020-07-17 22:20:21,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-07-17 22:20:21,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 122 transitions. [2020-07-17 22:20:21,699 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 15 states and 122 transitions. [2020-07-17 22:20:21,849 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 122 edges. 122 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:20:21,857 INFO L225 Difference]: With dead ends: 265 [2020-07-17 22:20:21,857 INFO L226 Difference]: Without dead ends: 165 [2020-07-17 22:20:21,859 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=67, Invalid=275, Unknown=0, NotChecked=0, Total=342 [2020-07-17 22:20:21,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2020-07-17 22:20:21,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 142. [2020-07-17 22:20:21,969 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-17 22:20:21,969 INFO L82 GeneralOperation]: Start isEquivalent. First operand 165 states. Second operand 142 states. [2020-07-17 22:20:21,969 INFO L74 IsIncluded]: Start isIncluded. First operand 165 states. Second operand 142 states. [2020-07-17 22:20:21,970 INFO L87 Difference]: Start difference. First operand 165 states. Second operand 142 states. [2020-07-17 22:20:21,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:20:21,984 INFO L93 Difference]: Finished difference Result 165 states and 285 transitions. [2020-07-17 22:20:21,984 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 285 transitions. [2020-07-17 22:20:21,986 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:20:21,986 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:20:21,987 INFO L74 IsIncluded]: Start isIncluded. First operand 142 states. Second operand 165 states. [2020-07-17 22:20:21,987 INFO L87 Difference]: Start difference. First operand 142 states. Second operand 165 states. [2020-07-17 22:20:22,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:20:22,001 INFO L93 Difference]: Finished difference Result 165 states and 285 transitions. [2020-07-17 22:20:22,001 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 285 transitions. [2020-07-17 22:20:22,003 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:20:22,004 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:20:22,004 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-17 22:20:22,004 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-17 22:20:22,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2020-07-17 22:20:22,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 244 transitions. [2020-07-17 22:20:22,015 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 244 transitions. Word has length 54 [2020-07-17 22:20:22,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 22:20:22,015 INFO L479 AbstractCegarLoop]: Abstraction has 142 states and 244 transitions. [2020-07-17 22:20:22,016 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-17 22:20:22,016 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 244 transitions. [2020-07-17 22:20:22,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-07-17 22:20:22,018 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 22:20:22,018 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 22:20:22,231 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2020-07-17 22:20:22,232 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 22:20:22,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 22:20:22,233 INFO L82 PathProgramCache]: Analyzing trace with hash -242988780, now seen corresponding path program 1 times [2020-07-17 22:20:22,233 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 22:20:22,234 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161965139] [2020-07-17 22:20:22,234 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 22:20:22,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:20:22,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:20:22,272 INFO L280 TraceCheckUtils]: 0: Hoare triple {3599#true} assume true; {3599#true} is VALID [2020-07-17 22:20:22,272 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {3599#true} {3599#true} #47#return; {3599#true} is VALID [2020-07-17 22:20:22,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:20:22,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:20:22,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:20:22,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:20:22,457 INFO L280 TraceCheckUtils]: 0: Hoare triple {3599#true} ~n := #in~n; {3599#true} is VALID [2020-07-17 22:20:22,457 INFO L280 TraceCheckUtils]: 1: Hoare triple {3599#true} assume !(~n < 1); {3599#true} is VALID [2020-07-17 22:20:22,457 INFO L280 TraceCheckUtils]: 2: Hoare triple {3599#true} assume 1 == ~n;#res := 1; {3599#true} is VALID [2020-07-17 22:20:22,458 INFO L280 TraceCheckUtils]: 3: Hoare triple {3599#true} assume true; {3599#true} is VALID [2020-07-17 22:20:22,459 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {3599#true} {3715#(<= 2 |fibo1_#in~n|)} #57#return; {3715#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-17 22:20:22,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:20:22,467 INFO L280 TraceCheckUtils]: 0: Hoare triple {3599#true} ~n := #in~n; {3599#true} is VALID [2020-07-17 22:20:22,467 INFO L280 TraceCheckUtils]: 1: Hoare triple {3599#true} assume ~n < 1;#res := 0; {3599#true} is VALID [2020-07-17 22:20:22,468 INFO L280 TraceCheckUtils]: 2: Hoare triple {3599#true} assume true; {3599#true} is VALID [2020-07-17 22:20:22,469 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {3599#true} {3715#(<= 2 |fibo1_#in~n|)} #59#return; {3715#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-17 22:20:22,469 INFO L280 TraceCheckUtils]: 0: Hoare triple {3599#true} ~n := #in~n; {3713#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-17 22:20:22,470 INFO L280 TraceCheckUtils]: 1: Hoare triple {3713#(= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {3714#(and (< 0 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-17 22:20:22,471 INFO L280 TraceCheckUtils]: 2: Hoare triple {3714#(and (< 0 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} assume !(1 == ~n); {3715#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-17 22:20:22,471 INFO L263 TraceCheckUtils]: 3: Hoare triple {3715#(<= 2 |fibo1_#in~n|)} call #t~ret0 := fibo2(~n - 1); {3599#true} is VALID [2020-07-17 22:20:22,471 INFO L280 TraceCheckUtils]: 4: Hoare triple {3599#true} ~n := #in~n; {3599#true} is VALID [2020-07-17 22:20:22,472 INFO L280 TraceCheckUtils]: 5: Hoare triple {3599#true} assume !(~n < 1); {3599#true} is VALID [2020-07-17 22:20:22,472 INFO L280 TraceCheckUtils]: 6: Hoare triple {3599#true} assume 1 == ~n;#res := 1; {3599#true} is VALID [2020-07-17 22:20:22,472 INFO L280 TraceCheckUtils]: 7: Hoare triple {3599#true} assume true; {3599#true} is VALID [2020-07-17 22:20:22,473 INFO L275 TraceCheckUtils]: 8: Hoare quadruple {3599#true} {3715#(<= 2 |fibo1_#in~n|)} #57#return; {3715#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-17 22:20:22,474 INFO L280 TraceCheckUtils]: 9: Hoare triple {3715#(<= 2 |fibo1_#in~n|)} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {3715#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-17 22:20:22,474 INFO L263 TraceCheckUtils]: 10: Hoare triple {3715#(<= 2 |fibo1_#in~n|)} call #t~ret1 := fibo2(~n - 2); {3599#true} is VALID [2020-07-17 22:20:22,474 INFO L280 TraceCheckUtils]: 11: Hoare triple {3599#true} ~n := #in~n; {3599#true} is VALID [2020-07-17 22:20:22,474 INFO L280 TraceCheckUtils]: 12: Hoare triple {3599#true} assume ~n < 1;#res := 0; {3599#true} is VALID [2020-07-17 22:20:22,474 INFO L280 TraceCheckUtils]: 13: Hoare triple {3599#true} assume true; {3599#true} is VALID [2020-07-17 22:20:22,476 INFO L275 TraceCheckUtils]: 14: Hoare quadruple {3599#true} {3715#(<= 2 |fibo1_#in~n|)} #59#return; {3715#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-17 22:20:22,476 INFO L280 TraceCheckUtils]: 15: Hoare triple {3715#(<= 2 |fibo1_#in~n|)} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647;#res := #t~ret0 + #t~ret1;havoc #t~ret1;havoc #t~ret0; {3715#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-17 22:20:22,477 INFO L280 TraceCheckUtils]: 16: Hoare triple {3715#(<= 2 |fibo1_#in~n|)} assume true; {3715#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-17 22:20:22,478 INFO L275 TraceCheckUtils]: 17: Hoare quadruple {3715#(<= 2 |fibo1_#in~n|)} {3688#(= fibo2_~n |fibo2_#in~n|)} #53#return; {3707#(<= 3 |fibo2_#in~n|)} is VALID [2020-07-17 22:20:22,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:20:22,485 INFO L280 TraceCheckUtils]: 0: Hoare triple {3599#true} ~n := #in~n; {3599#true} is VALID [2020-07-17 22:20:22,485 INFO L280 TraceCheckUtils]: 1: Hoare triple {3599#true} assume !(~n < 1); {3599#true} is VALID [2020-07-17 22:20:22,486 INFO L280 TraceCheckUtils]: 2: Hoare triple {3599#true} assume 1 == ~n;#res := 1; {3599#true} is VALID [2020-07-17 22:20:22,486 INFO L280 TraceCheckUtils]: 3: Hoare triple {3599#true} assume true; {3599#true} is VALID [2020-07-17 22:20:22,487 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {3599#true} {3707#(<= 3 |fibo2_#in~n|)} #55#return; {3707#(<= 3 |fibo2_#in~n|)} is VALID [2020-07-17 22:20:22,488 INFO L280 TraceCheckUtils]: 0: Hoare triple {3599#true} ~n := #in~n; {3688#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-17 22:20:22,488 INFO L280 TraceCheckUtils]: 1: Hoare triple {3688#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {3688#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-17 22:20:22,489 INFO L280 TraceCheckUtils]: 2: Hoare triple {3688#(= fibo2_~n |fibo2_#in~n|)} assume !(1 == ~n); {3688#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-17 22:20:22,489 INFO L263 TraceCheckUtils]: 3: Hoare triple {3688#(= fibo2_~n |fibo2_#in~n|)} call #t~ret2 := fibo1(~n - 1); {3599#true} is VALID [2020-07-17 22:20:22,490 INFO L280 TraceCheckUtils]: 4: Hoare triple {3599#true} ~n := #in~n; {3713#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-17 22:20:22,491 INFO L280 TraceCheckUtils]: 5: Hoare triple {3713#(= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {3714#(and (< 0 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-17 22:20:22,492 INFO L280 TraceCheckUtils]: 6: Hoare triple {3714#(and (< 0 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} assume !(1 == ~n); {3715#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-17 22:20:22,492 INFO L263 TraceCheckUtils]: 7: Hoare triple {3715#(<= 2 |fibo1_#in~n|)} call #t~ret0 := fibo2(~n - 1); {3599#true} is VALID [2020-07-17 22:20:22,492 INFO L280 TraceCheckUtils]: 8: Hoare triple {3599#true} ~n := #in~n; {3599#true} is VALID [2020-07-17 22:20:22,492 INFO L280 TraceCheckUtils]: 9: Hoare triple {3599#true} assume !(~n < 1); {3599#true} is VALID [2020-07-17 22:20:22,493 INFO L280 TraceCheckUtils]: 10: Hoare triple {3599#true} assume 1 == ~n;#res := 1; {3599#true} is VALID [2020-07-17 22:20:22,493 INFO L280 TraceCheckUtils]: 11: Hoare triple {3599#true} assume true; {3599#true} is VALID [2020-07-17 22:20:22,494 INFO L275 TraceCheckUtils]: 12: Hoare quadruple {3599#true} {3715#(<= 2 |fibo1_#in~n|)} #57#return; {3715#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-17 22:20:22,494 INFO L280 TraceCheckUtils]: 13: Hoare triple {3715#(<= 2 |fibo1_#in~n|)} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {3715#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-17 22:20:22,495 INFO L263 TraceCheckUtils]: 14: Hoare triple {3715#(<= 2 |fibo1_#in~n|)} call #t~ret1 := fibo2(~n - 2); {3599#true} is VALID [2020-07-17 22:20:22,495 INFO L280 TraceCheckUtils]: 15: Hoare triple {3599#true} ~n := #in~n; {3599#true} is VALID [2020-07-17 22:20:22,495 INFO L280 TraceCheckUtils]: 16: Hoare triple {3599#true} assume ~n < 1;#res := 0; {3599#true} is VALID [2020-07-17 22:20:22,495 INFO L280 TraceCheckUtils]: 17: Hoare triple {3599#true} assume true; {3599#true} is VALID [2020-07-17 22:20:22,496 INFO L275 TraceCheckUtils]: 18: Hoare quadruple {3599#true} {3715#(<= 2 |fibo1_#in~n|)} #59#return; {3715#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-17 22:20:22,497 INFO L280 TraceCheckUtils]: 19: Hoare triple {3715#(<= 2 |fibo1_#in~n|)} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647;#res := #t~ret0 + #t~ret1;havoc #t~ret1;havoc #t~ret0; {3715#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-17 22:20:22,498 INFO L280 TraceCheckUtils]: 20: Hoare triple {3715#(<= 2 |fibo1_#in~n|)} assume true; {3715#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-17 22:20:22,499 INFO L275 TraceCheckUtils]: 21: Hoare quadruple {3715#(<= 2 |fibo1_#in~n|)} {3688#(= fibo2_~n |fibo2_#in~n|)} #53#return; {3707#(<= 3 |fibo2_#in~n|)} is VALID [2020-07-17 22:20:22,500 INFO L280 TraceCheckUtils]: 22: Hoare triple {3707#(<= 3 |fibo2_#in~n|)} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {3707#(<= 3 |fibo2_#in~n|)} is VALID [2020-07-17 22:20:22,500 INFO L263 TraceCheckUtils]: 23: Hoare triple {3707#(<= 3 |fibo2_#in~n|)} call #t~ret3 := fibo1(~n - 2); {3599#true} is VALID [2020-07-17 22:20:22,500 INFO L280 TraceCheckUtils]: 24: Hoare triple {3599#true} ~n := #in~n; {3599#true} is VALID [2020-07-17 22:20:22,501 INFO L280 TraceCheckUtils]: 25: Hoare triple {3599#true} assume !(~n < 1); {3599#true} is VALID [2020-07-17 22:20:22,501 INFO L280 TraceCheckUtils]: 26: Hoare triple {3599#true} assume 1 == ~n;#res := 1; {3599#true} is VALID [2020-07-17 22:20:22,501 INFO L280 TraceCheckUtils]: 27: Hoare triple {3599#true} assume true; {3599#true} is VALID [2020-07-17 22:20:22,502 INFO L275 TraceCheckUtils]: 28: Hoare quadruple {3599#true} {3707#(<= 3 |fibo2_#in~n|)} #55#return; {3707#(<= 3 |fibo2_#in~n|)} is VALID [2020-07-17 22:20:22,503 INFO L280 TraceCheckUtils]: 29: Hoare triple {3707#(<= 3 |fibo2_#in~n|)} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647;#res := #t~ret2 + #t~ret3;havoc #t~ret3;havoc #t~ret2; {3707#(<= 3 |fibo2_#in~n|)} is VALID [2020-07-17 22:20:22,504 INFO L280 TraceCheckUtils]: 30: Hoare triple {3707#(<= 3 |fibo2_#in~n|)} assume true; {3707#(<= 3 |fibo2_#in~n|)} is VALID [2020-07-17 22:20:22,505 INFO L275 TraceCheckUtils]: 31: Hoare quadruple {3707#(<= 3 |fibo2_#in~n|)} {3599#true} #57#return; {3682#(<= 4 fibo1_~n)} is VALID [2020-07-17 22:20:22,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:20:22,527 INFO L280 TraceCheckUtils]: 0: Hoare triple {3599#true} ~n := #in~n; {3688#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-17 22:20:22,528 INFO L280 TraceCheckUtils]: 1: Hoare triple {3688#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {3688#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-17 22:20:22,529 INFO L280 TraceCheckUtils]: 2: Hoare triple {3688#(= fibo2_~n |fibo2_#in~n|)} assume 1 == ~n;#res := 1; {3725#(<= |fibo2_#in~n| 1)} is VALID [2020-07-17 22:20:22,529 INFO L280 TraceCheckUtils]: 3: Hoare triple {3725#(<= |fibo2_#in~n| 1)} assume true; {3725#(<= |fibo2_#in~n| 1)} is VALID [2020-07-17 22:20:22,530 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {3725#(<= |fibo2_#in~n| 1)} {3682#(<= 4 fibo1_~n)} #59#return; {3600#false} is VALID [2020-07-17 22:20:22,531 INFO L280 TraceCheckUtils]: 0: Hoare triple {3599#true} ~n := #in~n; {3599#true} is VALID [2020-07-17 22:20:22,531 INFO L280 TraceCheckUtils]: 1: Hoare triple {3599#true} assume !(~n < 1); {3599#true} is VALID [2020-07-17 22:20:22,531 INFO L280 TraceCheckUtils]: 2: Hoare triple {3599#true} assume !(1 == ~n); {3599#true} is VALID [2020-07-17 22:20:22,531 INFO L263 TraceCheckUtils]: 3: Hoare triple {3599#true} call #t~ret0 := fibo2(~n - 1); {3599#true} is VALID [2020-07-17 22:20:22,532 INFO L280 TraceCheckUtils]: 4: Hoare triple {3599#true} ~n := #in~n; {3688#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-17 22:20:22,532 INFO L280 TraceCheckUtils]: 5: Hoare triple {3688#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {3688#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-17 22:20:22,533 INFO L280 TraceCheckUtils]: 6: Hoare triple {3688#(= fibo2_~n |fibo2_#in~n|)} assume !(1 == ~n); {3688#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-17 22:20:22,533 INFO L263 TraceCheckUtils]: 7: Hoare triple {3688#(= fibo2_~n |fibo2_#in~n|)} call #t~ret2 := fibo1(~n - 1); {3599#true} is VALID [2020-07-17 22:20:22,534 INFO L280 TraceCheckUtils]: 8: Hoare triple {3599#true} ~n := #in~n; {3713#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-17 22:20:22,534 INFO L280 TraceCheckUtils]: 9: Hoare triple {3713#(= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {3714#(and (< 0 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-17 22:20:22,535 INFO L280 TraceCheckUtils]: 10: Hoare triple {3714#(and (< 0 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} assume !(1 == ~n); {3715#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-17 22:20:22,536 INFO L263 TraceCheckUtils]: 11: Hoare triple {3715#(<= 2 |fibo1_#in~n|)} call #t~ret0 := fibo2(~n - 1); {3599#true} is VALID [2020-07-17 22:20:22,536 INFO L280 TraceCheckUtils]: 12: Hoare triple {3599#true} ~n := #in~n; {3599#true} is VALID [2020-07-17 22:20:22,536 INFO L280 TraceCheckUtils]: 13: Hoare triple {3599#true} assume !(~n < 1); {3599#true} is VALID [2020-07-17 22:20:22,536 INFO L280 TraceCheckUtils]: 14: Hoare triple {3599#true} assume 1 == ~n;#res := 1; {3599#true} is VALID [2020-07-17 22:20:22,536 INFO L280 TraceCheckUtils]: 15: Hoare triple {3599#true} assume true; {3599#true} is VALID [2020-07-17 22:20:22,537 INFO L275 TraceCheckUtils]: 16: Hoare quadruple {3599#true} {3715#(<= 2 |fibo1_#in~n|)} #57#return; {3715#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-17 22:20:22,538 INFO L280 TraceCheckUtils]: 17: Hoare triple {3715#(<= 2 |fibo1_#in~n|)} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {3715#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-17 22:20:22,538 INFO L263 TraceCheckUtils]: 18: Hoare triple {3715#(<= 2 |fibo1_#in~n|)} call #t~ret1 := fibo2(~n - 2); {3599#true} is VALID [2020-07-17 22:20:22,538 INFO L280 TraceCheckUtils]: 19: Hoare triple {3599#true} ~n := #in~n; {3599#true} is VALID [2020-07-17 22:20:22,539 INFO L280 TraceCheckUtils]: 20: Hoare triple {3599#true} assume ~n < 1;#res := 0; {3599#true} is VALID [2020-07-17 22:20:22,539 INFO L280 TraceCheckUtils]: 21: Hoare triple {3599#true} assume true; {3599#true} is VALID [2020-07-17 22:20:22,540 INFO L275 TraceCheckUtils]: 22: Hoare quadruple {3599#true} {3715#(<= 2 |fibo1_#in~n|)} #59#return; {3715#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-17 22:20:22,540 INFO L280 TraceCheckUtils]: 23: Hoare triple {3715#(<= 2 |fibo1_#in~n|)} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647;#res := #t~ret0 + #t~ret1;havoc #t~ret1;havoc #t~ret0; {3715#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-17 22:20:22,541 INFO L280 TraceCheckUtils]: 24: Hoare triple {3715#(<= 2 |fibo1_#in~n|)} assume true; {3715#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-17 22:20:22,542 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {3715#(<= 2 |fibo1_#in~n|)} {3688#(= fibo2_~n |fibo2_#in~n|)} #53#return; {3707#(<= 3 |fibo2_#in~n|)} is VALID [2020-07-17 22:20:22,543 INFO L280 TraceCheckUtils]: 26: Hoare triple {3707#(<= 3 |fibo2_#in~n|)} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {3707#(<= 3 |fibo2_#in~n|)} is VALID [2020-07-17 22:20:22,543 INFO L263 TraceCheckUtils]: 27: Hoare triple {3707#(<= 3 |fibo2_#in~n|)} call #t~ret3 := fibo1(~n - 2); {3599#true} is VALID [2020-07-17 22:20:22,543 INFO L280 TraceCheckUtils]: 28: Hoare triple {3599#true} ~n := #in~n; {3599#true} is VALID [2020-07-17 22:20:22,544 INFO L280 TraceCheckUtils]: 29: Hoare triple {3599#true} assume !(~n < 1); {3599#true} is VALID [2020-07-17 22:20:22,544 INFO L280 TraceCheckUtils]: 30: Hoare triple {3599#true} assume 1 == ~n;#res := 1; {3599#true} is VALID [2020-07-17 22:20:22,544 INFO L280 TraceCheckUtils]: 31: Hoare triple {3599#true} assume true; {3599#true} is VALID [2020-07-17 22:20:22,545 INFO L275 TraceCheckUtils]: 32: Hoare quadruple {3599#true} {3707#(<= 3 |fibo2_#in~n|)} #55#return; {3707#(<= 3 |fibo2_#in~n|)} is VALID [2020-07-17 22:20:22,546 INFO L280 TraceCheckUtils]: 33: Hoare triple {3707#(<= 3 |fibo2_#in~n|)} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647;#res := #t~ret2 + #t~ret3;havoc #t~ret3;havoc #t~ret2; {3707#(<= 3 |fibo2_#in~n|)} is VALID [2020-07-17 22:20:22,546 INFO L280 TraceCheckUtils]: 34: Hoare triple {3707#(<= 3 |fibo2_#in~n|)} assume true; {3707#(<= 3 |fibo2_#in~n|)} is VALID [2020-07-17 22:20:22,547 INFO L275 TraceCheckUtils]: 35: Hoare quadruple {3707#(<= 3 |fibo2_#in~n|)} {3599#true} #57#return; {3682#(<= 4 fibo1_~n)} is VALID [2020-07-17 22:20:22,548 INFO L280 TraceCheckUtils]: 36: Hoare triple {3682#(<= 4 fibo1_~n)} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {3682#(<= 4 fibo1_~n)} is VALID [2020-07-17 22:20:22,548 INFO L263 TraceCheckUtils]: 37: Hoare triple {3682#(<= 4 fibo1_~n)} call #t~ret1 := fibo2(~n - 2); {3599#true} is VALID [2020-07-17 22:20:22,549 INFO L280 TraceCheckUtils]: 38: Hoare triple {3599#true} ~n := #in~n; {3688#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-17 22:20:22,549 INFO L280 TraceCheckUtils]: 39: Hoare triple {3688#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {3688#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-17 22:20:22,550 INFO L280 TraceCheckUtils]: 40: Hoare triple {3688#(= fibo2_~n |fibo2_#in~n|)} assume 1 == ~n;#res := 1; {3725#(<= |fibo2_#in~n| 1)} is VALID [2020-07-17 22:20:22,550 INFO L280 TraceCheckUtils]: 41: Hoare triple {3725#(<= |fibo2_#in~n| 1)} assume true; {3725#(<= |fibo2_#in~n| 1)} is VALID [2020-07-17 22:20:22,551 INFO L275 TraceCheckUtils]: 42: Hoare quadruple {3725#(<= |fibo2_#in~n| 1)} {3682#(<= 4 fibo1_~n)} #59#return; {3600#false} is VALID [2020-07-17 22:20:22,552 INFO L280 TraceCheckUtils]: 43: Hoare triple {3600#false} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647;#res := #t~ret0 + #t~ret1;havoc #t~ret1;havoc #t~ret0; {3600#false} is VALID [2020-07-17 22:20:22,552 INFO L280 TraceCheckUtils]: 44: Hoare triple {3600#false} assume true; {3600#false} is VALID [2020-07-17 22:20:22,552 INFO L275 TraceCheckUtils]: 45: Hoare quadruple {3600#false} {3603#(<= 4 main_~x~0)} #51#return; {3600#false} is VALID [2020-07-17 22:20:22,554 INFO L263 TraceCheckUtils]: 0: Hoare triple {3599#true} call ULTIMATE.init(); {3599#true} is VALID [2020-07-17 22:20:22,555 INFO L280 TraceCheckUtils]: 1: Hoare triple {3599#true} assume true; {3599#true} is VALID [2020-07-17 22:20:22,555 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {3599#true} {3599#true} #47#return; {3599#true} is VALID [2020-07-17 22:20:22,555 INFO L263 TraceCheckUtils]: 3: Hoare triple {3599#true} call #t~ret5 := main(); {3599#true} is VALID [2020-07-17 22:20:22,556 INFO L280 TraceCheckUtils]: 4: Hoare triple {3599#true} ~x~0 := 4; {3603#(<= 4 main_~x~0)} is VALID [2020-07-17 22:20:22,556 INFO L263 TraceCheckUtils]: 5: Hoare triple {3603#(<= 4 main_~x~0)} call #t~ret4 := fibo1(~x~0); {3599#true} is VALID [2020-07-17 22:20:22,556 INFO L280 TraceCheckUtils]: 6: Hoare triple {3599#true} ~n := #in~n; {3599#true} is VALID [2020-07-17 22:20:22,556 INFO L280 TraceCheckUtils]: 7: Hoare triple {3599#true} assume !(~n < 1); {3599#true} is VALID [2020-07-17 22:20:22,556 INFO L280 TraceCheckUtils]: 8: Hoare triple {3599#true} assume !(1 == ~n); {3599#true} is VALID [2020-07-17 22:20:22,557 INFO L263 TraceCheckUtils]: 9: Hoare triple {3599#true} call #t~ret0 := fibo2(~n - 1); {3599#true} is VALID [2020-07-17 22:20:22,557 INFO L280 TraceCheckUtils]: 10: Hoare triple {3599#true} ~n := #in~n; {3688#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-17 22:20:22,558 INFO L280 TraceCheckUtils]: 11: Hoare triple {3688#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {3688#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-17 22:20:22,558 INFO L280 TraceCheckUtils]: 12: Hoare triple {3688#(= fibo2_~n |fibo2_#in~n|)} assume !(1 == ~n); {3688#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-17 22:20:22,559 INFO L263 TraceCheckUtils]: 13: Hoare triple {3688#(= fibo2_~n |fibo2_#in~n|)} call #t~ret2 := fibo1(~n - 1); {3599#true} is VALID [2020-07-17 22:20:22,559 INFO L280 TraceCheckUtils]: 14: Hoare triple {3599#true} ~n := #in~n; {3713#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-17 22:20:22,560 INFO L280 TraceCheckUtils]: 15: Hoare triple {3713#(= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {3714#(and (< 0 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-17 22:20:22,561 INFO L280 TraceCheckUtils]: 16: Hoare triple {3714#(and (< 0 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} assume !(1 == ~n); {3715#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-17 22:20:22,561 INFO L263 TraceCheckUtils]: 17: Hoare triple {3715#(<= 2 |fibo1_#in~n|)} call #t~ret0 := fibo2(~n - 1); {3599#true} is VALID [2020-07-17 22:20:22,561 INFO L280 TraceCheckUtils]: 18: Hoare triple {3599#true} ~n := #in~n; {3599#true} is VALID [2020-07-17 22:20:22,561 INFO L280 TraceCheckUtils]: 19: Hoare triple {3599#true} assume !(~n < 1); {3599#true} is VALID [2020-07-17 22:20:22,561 INFO L280 TraceCheckUtils]: 20: Hoare triple {3599#true} assume 1 == ~n;#res := 1; {3599#true} is VALID [2020-07-17 22:20:22,562 INFO L280 TraceCheckUtils]: 21: Hoare triple {3599#true} assume true; {3599#true} is VALID [2020-07-17 22:20:22,563 INFO L275 TraceCheckUtils]: 22: Hoare quadruple {3599#true} {3715#(<= 2 |fibo1_#in~n|)} #57#return; {3715#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-17 22:20:22,563 INFO L280 TraceCheckUtils]: 23: Hoare triple {3715#(<= 2 |fibo1_#in~n|)} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {3715#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-17 22:20:22,563 INFO L263 TraceCheckUtils]: 24: Hoare triple {3715#(<= 2 |fibo1_#in~n|)} call #t~ret1 := fibo2(~n - 2); {3599#true} is VALID [2020-07-17 22:20:22,564 INFO L280 TraceCheckUtils]: 25: Hoare triple {3599#true} ~n := #in~n; {3599#true} is VALID [2020-07-17 22:20:22,564 INFO L280 TraceCheckUtils]: 26: Hoare triple {3599#true} assume ~n < 1;#res := 0; {3599#true} is VALID [2020-07-17 22:20:22,564 INFO L280 TraceCheckUtils]: 27: Hoare triple {3599#true} assume true; {3599#true} is VALID [2020-07-17 22:20:22,565 INFO L275 TraceCheckUtils]: 28: Hoare quadruple {3599#true} {3715#(<= 2 |fibo1_#in~n|)} #59#return; {3715#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-17 22:20:22,565 INFO L280 TraceCheckUtils]: 29: Hoare triple {3715#(<= 2 |fibo1_#in~n|)} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647;#res := #t~ret0 + #t~ret1;havoc #t~ret1;havoc #t~ret0; {3715#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-17 22:20:22,566 INFO L280 TraceCheckUtils]: 30: Hoare triple {3715#(<= 2 |fibo1_#in~n|)} assume true; {3715#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-17 22:20:22,567 INFO L275 TraceCheckUtils]: 31: Hoare quadruple {3715#(<= 2 |fibo1_#in~n|)} {3688#(= fibo2_~n |fibo2_#in~n|)} #53#return; {3707#(<= 3 |fibo2_#in~n|)} is VALID [2020-07-17 22:20:22,568 INFO L280 TraceCheckUtils]: 32: Hoare triple {3707#(<= 3 |fibo2_#in~n|)} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {3707#(<= 3 |fibo2_#in~n|)} is VALID [2020-07-17 22:20:22,568 INFO L263 TraceCheckUtils]: 33: Hoare triple {3707#(<= 3 |fibo2_#in~n|)} call #t~ret3 := fibo1(~n - 2); {3599#true} is VALID [2020-07-17 22:20:22,568 INFO L280 TraceCheckUtils]: 34: Hoare triple {3599#true} ~n := #in~n; {3599#true} is VALID [2020-07-17 22:20:22,568 INFO L280 TraceCheckUtils]: 35: Hoare triple {3599#true} assume !(~n < 1); {3599#true} is VALID [2020-07-17 22:20:22,569 INFO L280 TraceCheckUtils]: 36: Hoare triple {3599#true} assume 1 == ~n;#res := 1; {3599#true} is VALID [2020-07-17 22:20:22,569 INFO L280 TraceCheckUtils]: 37: Hoare triple {3599#true} assume true; {3599#true} is VALID [2020-07-17 22:20:22,569 INFO L275 TraceCheckUtils]: 38: Hoare quadruple {3599#true} {3707#(<= 3 |fibo2_#in~n|)} #55#return; {3707#(<= 3 |fibo2_#in~n|)} is VALID [2020-07-17 22:20:22,570 INFO L280 TraceCheckUtils]: 39: Hoare triple {3707#(<= 3 |fibo2_#in~n|)} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647;#res := #t~ret2 + #t~ret3;havoc #t~ret3;havoc #t~ret2; {3707#(<= 3 |fibo2_#in~n|)} is VALID [2020-07-17 22:20:22,571 INFO L280 TraceCheckUtils]: 40: Hoare triple {3707#(<= 3 |fibo2_#in~n|)} assume true; {3707#(<= 3 |fibo2_#in~n|)} is VALID [2020-07-17 22:20:22,572 INFO L275 TraceCheckUtils]: 41: Hoare quadruple {3707#(<= 3 |fibo2_#in~n|)} {3599#true} #57#return; {3682#(<= 4 fibo1_~n)} is VALID [2020-07-17 22:20:22,572 INFO L280 TraceCheckUtils]: 42: Hoare triple {3682#(<= 4 fibo1_~n)} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {3682#(<= 4 fibo1_~n)} is VALID [2020-07-17 22:20:22,572 INFO L263 TraceCheckUtils]: 43: Hoare triple {3682#(<= 4 fibo1_~n)} call #t~ret1 := fibo2(~n - 2); {3599#true} is VALID [2020-07-17 22:20:22,573 INFO L280 TraceCheckUtils]: 44: Hoare triple {3599#true} ~n := #in~n; {3688#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-17 22:20:22,573 INFO L280 TraceCheckUtils]: 45: Hoare triple {3688#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {3688#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-17 22:20:22,573 INFO L280 TraceCheckUtils]: 46: Hoare triple {3688#(= fibo2_~n |fibo2_#in~n|)} assume 1 == ~n;#res := 1; {3725#(<= |fibo2_#in~n| 1)} is VALID [2020-07-17 22:20:22,574 INFO L280 TraceCheckUtils]: 47: Hoare triple {3725#(<= |fibo2_#in~n| 1)} assume true; {3725#(<= |fibo2_#in~n| 1)} is VALID [2020-07-17 22:20:22,575 INFO L275 TraceCheckUtils]: 48: Hoare quadruple {3725#(<= |fibo2_#in~n| 1)} {3682#(<= 4 fibo1_~n)} #59#return; {3600#false} is VALID [2020-07-17 22:20:22,575 INFO L280 TraceCheckUtils]: 49: Hoare triple {3600#false} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647;#res := #t~ret0 + #t~ret1;havoc #t~ret1;havoc #t~ret0; {3600#false} is VALID [2020-07-17 22:20:22,575 INFO L280 TraceCheckUtils]: 50: Hoare triple {3600#false} assume true; {3600#false} is VALID [2020-07-17 22:20:22,575 INFO L275 TraceCheckUtils]: 51: Hoare quadruple {3600#false} {3603#(<= 4 main_~x~0)} #51#return; {3600#false} is VALID [2020-07-17 22:20:22,575 INFO L280 TraceCheckUtils]: 52: Hoare triple {3600#false} assume -2147483648 <= #t~ret4 && #t~ret4 <= 2147483647;~result~0 := #t~ret4;havoc #t~ret4; {3600#false} is VALID [2020-07-17 22:20:22,575 INFO L280 TraceCheckUtils]: 53: Hoare triple {3600#false} assume 3 != ~result~0; {3600#false} is VALID [2020-07-17 22:20:22,576 INFO L280 TraceCheckUtils]: 54: Hoare triple {3600#false} assume !false; {3600#false} is VALID [2020-07-17 22:20:22,577 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 19 proven. 11 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-07-17 22:20:22,578 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161965139] [2020-07-17 22:20:22,578 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2075184305] [2020-07-17 22:20:22,578 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 22:20:22,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:20:22,609 INFO L264 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-17 22:20:22,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:20:22,625 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-17 22:20:22,760 INFO L263 TraceCheckUtils]: 0: Hoare triple {3599#true} call ULTIMATE.init(); {3599#true} is VALID [2020-07-17 22:20:22,760 INFO L280 TraceCheckUtils]: 1: Hoare triple {3599#true} assume true; {3599#true} is VALID [2020-07-17 22:20:22,761 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {3599#true} {3599#true} #47#return; {3599#true} is VALID [2020-07-17 22:20:22,761 INFO L263 TraceCheckUtils]: 3: Hoare triple {3599#true} call #t~ret5 := main(); {3599#true} is VALID [2020-07-17 22:20:22,761 INFO L280 TraceCheckUtils]: 4: Hoare triple {3599#true} ~x~0 := 4; {3603#(<= 4 main_~x~0)} is VALID [2020-07-17 22:20:22,762 INFO L263 TraceCheckUtils]: 5: Hoare triple {3603#(<= 4 main_~x~0)} call #t~ret4 := fibo1(~x~0); {3599#true} is VALID [2020-07-17 22:20:22,762 INFO L280 TraceCheckUtils]: 6: Hoare triple {3599#true} ~n := #in~n; {3747#(<= |fibo1_#in~n| fibo1_~n)} is VALID [2020-07-17 22:20:22,762 INFO L280 TraceCheckUtils]: 7: Hoare triple {3747#(<= |fibo1_#in~n| fibo1_~n)} assume !(~n < 1); {3747#(<= |fibo1_#in~n| fibo1_~n)} is VALID [2020-07-17 22:20:22,763 INFO L280 TraceCheckUtils]: 8: Hoare triple {3747#(<= |fibo1_#in~n| fibo1_~n)} assume !(1 == ~n); {3747#(<= |fibo1_#in~n| fibo1_~n)} is VALID [2020-07-17 22:20:22,763 INFO L263 TraceCheckUtils]: 9: Hoare triple {3747#(<= |fibo1_#in~n| fibo1_~n)} call #t~ret0 := fibo2(~n - 1); {3599#true} is VALID [2020-07-17 22:20:22,763 INFO L280 TraceCheckUtils]: 10: Hoare triple {3599#true} ~n := #in~n; {3599#true} is VALID [2020-07-17 22:20:22,763 INFO L280 TraceCheckUtils]: 11: Hoare triple {3599#true} assume !(~n < 1); {3599#true} is VALID [2020-07-17 22:20:22,763 INFO L280 TraceCheckUtils]: 12: Hoare triple {3599#true} assume !(1 == ~n); {3599#true} is VALID [2020-07-17 22:20:22,764 INFO L263 TraceCheckUtils]: 13: Hoare triple {3599#true} call #t~ret2 := fibo1(~n - 1); {3599#true} is VALID [2020-07-17 22:20:22,764 INFO L280 TraceCheckUtils]: 14: Hoare triple {3599#true} ~n := #in~n; {3599#true} is VALID [2020-07-17 22:20:22,764 INFO L280 TraceCheckUtils]: 15: Hoare triple {3599#true} assume !(~n < 1); {3599#true} is VALID [2020-07-17 22:20:22,764 INFO L280 TraceCheckUtils]: 16: Hoare triple {3599#true} assume !(1 == ~n); {3599#true} is VALID [2020-07-17 22:20:22,764 INFO L263 TraceCheckUtils]: 17: Hoare triple {3599#true} call #t~ret0 := fibo2(~n - 1); {3599#true} is VALID [2020-07-17 22:20:22,764 INFO L280 TraceCheckUtils]: 18: Hoare triple {3599#true} ~n := #in~n; {3599#true} is VALID [2020-07-17 22:20:22,764 INFO L280 TraceCheckUtils]: 19: Hoare triple {3599#true} assume !(~n < 1); {3599#true} is VALID [2020-07-17 22:20:22,765 INFO L280 TraceCheckUtils]: 20: Hoare triple {3599#true} assume 1 == ~n;#res := 1; {3599#true} is VALID [2020-07-17 22:20:22,765 INFO L280 TraceCheckUtils]: 21: Hoare triple {3599#true} assume true; {3599#true} is VALID [2020-07-17 22:20:22,765 INFO L275 TraceCheckUtils]: 22: Hoare quadruple {3599#true} {3599#true} #57#return; {3599#true} is VALID [2020-07-17 22:20:22,765 INFO L280 TraceCheckUtils]: 23: Hoare triple {3599#true} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {3599#true} is VALID [2020-07-17 22:20:22,765 INFO L263 TraceCheckUtils]: 24: Hoare triple {3599#true} call #t~ret1 := fibo2(~n - 2); {3599#true} is VALID [2020-07-17 22:20:22,765 INFO L280 TraceCheckUtils]: 25: Hoare triple {3599#true} ~n := #in~n; {3599#true} is VALID [2020-07-17 22:20:22,765 INFO L280 TraceCheckUtils]: 26: Hoare triple {3599#true} assume ~n < 1;#res := 0; {3599#true} is VALID [2020-07-17 22:20:22,766 INFO L280 TraceCheckUtils]: 27: Hoare triple {3599#true} assume true; {3599#true} is VALID [2020-07-17 22:20:22,766 INFO L275 TraceCheckUtils]: 28: Hoare quadruple {3599#true} {3599#true} #59#return; {3599#true} is VALID [2020-07-17 22:20:22,766 INFO L280 TraceCheckUtils]: 29: Hoare triple {3599#true} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647;#res := #t~ret0 + #t~ret1;havoc #t~ret1;havoc #t~ret0; {3599#true} is VALID [2020-07-17 22:20:22,766 INFO L280 TraceCheckUtils]: 30: Hoare triple {3599#true} assume true; {3599#true} is VALID [2020-07-17 22:20:22,766 INFO L275 TraceCheckUtils]: 31: Hoare quadruple {3599#true} {3599#true} #53#return; {3599#true} is VALID [2020-07-17 22:20:22,766 INFO L280 TraceCheckUtils]: 32: Hoare triple {3599#true} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {3599#true} is VALID [2020-07-17 22:20:22,766 INFO L263 TraceCheckUtils]: 33: Hoare triple {3599#true} call #t~ret3 := fibo1(~n - 2); {3599#true} is VALID [2020-07-17 22:20:22,766 INFO L280 TraceCheckUtils]: 34: Hoare triple {3599#true} ~n := #in~n; {3599#true} is VALID [2020-07-17 22:20:22,767 INFO L280 TraceCheckUtils]: 35: Hoare triple {3599#true} assume !(~n < 1); {3599#true} is VALID [2020-07-17 22:20:22,767 INFO L280 TraceCheckUtils]: 36: Hoare triple {3599#true} assume 1 == ~n;#res := 1; {3599#true} is VALID [2020-07-17 22:20:22,767 INFO L280 TraceCheckUtils]: 37: Hoare triple {3599#true} assume true; {3599#true} is VALID [2020-07-17 22:20:22,767 INFO L275 TraceCheckUtils]: 38: Hoare quadruple {3599#true} {3599#true} #55#return; {3599#true} is VALID [2020-07-17 22:20:22,767 INFO L280 TraceCheckUtils]: 39: Hoare triple {3599#true} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647;#res := #t~ret2 + #t~ret3;havoc #t~ret3;havoc #t~ret2; {3599#true} is VALID [2020-07-17 22:20:22,767 INFO L280 TraceCheckUtils]: 40: Hoare triple {3599#true} assume true; {3599#true} is VALID [2020-07-17 22:20:22,768 INFO L275 TraceCheckUtils]: 41: Hoare quadruple {3599#true} {3747#(<= |fibo1_#in~n| fibo1_~n)} #57#return; {3747#(<= |fibo1_#in~n| fibo1_~n)} is VALID [2020-07-17 22:20:22,772 INFO L280 TraceCheckUtils]: 42: Hoare triple {3747#(<= |fibo1_#in~n| fibo1_~n)} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {3747#(<= |fibo1_#in~n| fibo1_~n)} is VALID [2020-07-17 22:20:22,773 INFO L263 TraceCheckUtils]: 43: Hoare triple {3747#(<= |fibo1_#in~n| fibo1_~n)} call #t~ret1 := fibo2(~n - 2); {3599#true} is VALID [2020-07-17 22:20:22,773 INFO L280 TraceCheckUtils]: 44: Hoare triple {3599#true} ~n := #in~n; {3862#(<= |fibo2_#in~n| fibo2_~n)} is VALID [2020-07-17 22:20:22,774 INFO L280 TraceCheckUtils]: 45: Hoare triple {3862#(<= |fibo2_#in~n| fibo2_~n)} assume !(~n < 1); {3862#(<= |fibo2_#in~n| fibo2_~n)} is VALID [2020-07-17 22:20:22,775 INFO L280 TraceCheckUtils]: 46: Hoare triple {3862#(<= |fibo2_#in~n| fibo2_~n)} assume 1 == ~n;#res := 1; {3725#(<= |fibo2_#in~n| 1)} is VALID [2020-07-17 22:20:22,775 INFO L280 TraceCheckUtils]: 47: Hoare triple {3725#(<= |fibo2_#in~n| 1)} assume true; {3725#(<= |fibo2_#in~n| 1)} is VALID [2020-07-17 22:20:22,776 INFO L275 TraceCheckUtils]: 48: Hoare quadruple {3725#(<= |fibo2_#in~n| 1)} {3747#(<= |fibo1_#in~n| fibo1_~n)} #59#return; {3875#(<= |fibo1_#in~n| 3)} is VALID [2020-07-17 22:20:22,777 INFO L280 TraceCheckUtils]: 49: Hoare triple {3875#(<= |fibo1_#in~n| 3)} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647;#res := #t~ret0 + #t~ret1;havoc #t~ret1;havoc #t~ret0; {3875#(<= |fibo1_#in~n| 3)} is VALID [2020-07-17 22:20:22,777 INFO L280 TraceCheckUtils]: 50: Hoare triple {3875#(<= |fibo1_#in~n| 3)} assume true; {3875#(<= |fibo1_#in~n| 3)} is VALID [2020-07-17 22:20:22,778 INFO L275 TraceCheckUtils]: 51: Hoare quadruple {3875#(<= |fibo1_#in~n| 3)} {3603#(<= 4 main_~x~0)} #51#return; {3600#false} is VALID [2020-07-17 22:20:22,778 INFO L280 TraceCheckUtils]: 52: Hoare triple {3600#false} assume -2147483648 <= #t~ret4 && #t~ret4 <= 2147483647;~result~0 := #t~ret4;havoc #t~ret4; {3600#false} is VALID [2020-07-17 22:20:22,779 INFO L280 TraceCheckUtils]: 53: Hoare triple {3600#false} assume 3 != ~result~0; {3600#false} is VALID [2020-07-17 22:20:22,779 INFO L280 TraceCheckUtils]: 54: Hoare triple {3600#false} assume !false; {3600#false} is VALID [2020-07-17 22:20:22,781 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 18 proven. 5 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2020-07-17 22:20:22,781 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-17 22:20:22,782 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7] total 13 [2020-07-17 22:20:22,782 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430049160] [2020-07-17 22:20:22,783 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 55 [2020-07-17 22:20:22,784 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-17 22:20:22,784 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 13 states. [2020-07-17 22:20:22,873 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 75 edges. 75 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:20:22,874 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-07-17 22:20:22,874 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 22:20:22,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-07-17 22:20:22,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2020-07-17 22:20:22,875 INFO L87 Difference]: Start difference. First operand 142 states and 244 transitions. Second operand 13 states. [2020-07-17 22:20:24,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:20:24,408 INFO L93 Difference]: Finished difference Result 304 states and 583 transitions. [2020-07-17 22:20:24,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-07-17 22:20:24,408 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 55 [2020-07-17 22:20:24,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 22:20:24,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-07-17 22:20:24,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 125 transitions. [2020-07-17 22:20:24,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-07-17 22:20:24,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 125 transitions. [2020-07-17 22:20:24,419 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 16 states and 125 transitions. [2020-07-17 22:20:24,583 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 125 edges. 125 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:20:24,587 INFO L225 Difference]: With dead ends: 304 [2020-07-17 22:20:24,587 INFO L226 Difference]: Without dead ends: 101 [2020-07-17 22:20:24,590 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=307, Unknown=0, NotChecked=0, Total=380 [2020-07-17 22:20:24,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2020-07-17 22:20:24,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 83. [2020-07-17 22:20:24,648 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-17 22:20:24,648 INFO L82 GeneralOperation]: Start isEquivalent. First operand 101 states. Second operand 83 states. [2020-07-17 22:20:24,648 INFO L74 IsIncluded]: Start isIncluded. First operand 101 states. Second operand 83 states. [2020-07-17 22:20:24,649 INFO L87 Difference]: Start difference. First operand 101 states. Second operand 83 states. [2020-07-17 22:20:24,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:20:24,656 INFO L93 Difference]: Finished difference Result 101 states and 156 transitions. [2020-07-17 22:20:24,656 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 156 transitions. [2020-07-17 22:20:24,658 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:20:24,658 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:20:24,658 INFO L74 IsIncluded]: Start isIncluded. First operand 83 states. Second operand 101 states. [2020-07-17 22:20:24,658 INFO L87 Difference]: Start difference. First operand 83 states. Second operand 101 states. [2020-07-17 22:20:24,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:20:24,665 INFO L93 Difference]: Finished difference Result 101 states and 156 transitions. [2020-07-17 22:20:24,665 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 156 transitions. [2020-07-17 22:20:24,666 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:20:24,667 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:20:24,667 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-17 22:20:24,667 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-17 22:20:24,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2020-07-17 22:20:24,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 126 transitions. [2020-07-17 22:20:24,673 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 126 transitions. Word has length 55 [2020-07-17 22:20:24,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 22:20:24,673 INFO L479 AbstractCegarLoop]: Abstraction has 83 states and 126 transitions. [2020-07-17 22:20:24,673 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-07-17 22:20:24,673 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 126 transitions. [2020-07-17 22:20:24,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-07-17 22:20:24,675 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 22:20:24,675 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 22:20:24,889 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 22:20:24,890 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 22:20:24,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 22:20:24,891 INFO L82 PathProgramCache]: Analyzing trace with hash -1751947273, now seen corresponding path program 2 times [2020-07-17 22:20:24,892 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 22:20:24,892 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465226973] [2020-07-17 22:20:24,892 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 22:20:24,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:20:24,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:20:24,933 INFO L280 TraceCheckUtils]: 0: Hoare triple {4610#true} assume true; {4610#true} is VALID [2020-07-17 22:20:24,933 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {4610#true} {4610#true} #47#return; {4610#true} is VALID [2020-07-17 22:20:24,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:20:24,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:20:25,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:20:25,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:20:25,073 INFO L280 TraceCheckUtils]: 0: Hoare triple {4610#true} ~n := #in~n; {4727#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-17 22:20:25,074 INFO L280 TraceCheckUtils]: 1: Hoare triple {4727#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {4727#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-17 22:20:25,075 INFO L280 TraceCheckUtils]: 2: Hoare triple {4727#(= fibo2_~n |fibo2_#in~n|)} assume 1 == ~n;#res := 1; {4763#(<= |fibo2_#in~n| 1)} is VALID [2020-07-17 22:20:25,076 INFO L280 TraceCheckUtils]: 3: Hoare triple {4763#(<= |fibo2_#in~n| 1)} assume true; {4763#(<= |fibo2_#in~n| 1)} is VALID [2020-07-17 22:20:25,078 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {4763#(<= |fibo2_#in~n| 1)} {4752#(= fibo1_~n |fibo1_#in~n|)} #57#return; {4758#(<= |fibo1_#in~n| 2)} is VALID [2020-07-17 22:20:25,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:20:25,085 INFO L280 TraceCheckUtils]: 0: Hoare triple {4610#true} ~n := #in~n; {4610#true} is VALID [2020-07-17 22:20:25,086 INFO L280 TraceCheckUtils]: 1: Hoare triple {4610#true} assume ~n < 1;#res := 0; {4610#true} is VALID [2020-07-17 22:20:25,086 INFO L280 TraceCheckUtils]: 2: Hoare triple {4610#true} assume true; {4610#true} is VALID [2020-07-17 22:20:25,088 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {4610#true} {4758#(<= |fibo1_#in~n| 2)} #59#return; {4758#(<= |fibo1_#in~n| 2)} is VALID [2020-07-17 22:20:25,089 INFO L280 TraceCheckUtils]: 0: Hoare triple {4610#true} ~n := #in~n; {4752#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-17 22:20:25,090 INFO L280 TraceCheckUtils]: 1: Hoare triple {4752#(= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {4752#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-17 22:20:25,091 INFO L280 TraceCheckUtils]: 2: Hoare triple {4752#(= fibo1_~n |fibo1_#in~n|)} assume !(1 == ~n); {4752#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-17 22:20:25,092 INFO L263 TraceCheckUtils]: 3: Hoare triple {4752#(= fibo1_~n |fibo1_#in~n|)} call #t~ret0 := fibo2(~n - 1); {4610#true} is VALID [2020-07-17 22:20:25,093 INFO L280 TraceCheckUtils]: 4: Hoare triple {4610#true} ~n := #in~n; {4727#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-17 22:20:25,094 INFO L280 TraceCheckUtils]: 5: Hoare triple {4727#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {4727#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-17 22:20:25,095 INFO L280 TraceCheckUtils]: 6: Hoare triple {4727#(= fibo2_~n |fibo2_#in~n|)} assume 1 == ~n;#res := 1; {4763#(<= |fibo2_#in~n| 1)} is VALID [2020-07-17 22:20:25,096 INFO L280 TraceCheckUtils]: 7: Hoare triple {4763#(<= |fibo2_#in~n| 1)} assume true; {4763#(<= |fibo2_#in~n| 1)} is VALID [2020-07-17 22:20:25,099 INFO L275 TraceCheckUtils]: 8: Hoare quadruple {4763#(<= |fibo2_#in~n| 1)} {4752#(= fibo1_~n |fibo1_#in~n|)} #57#return; {4758#(<= |fibo1_#in~n| 2)} is VALID [2020-07-17 22:20:25,100 INFO L280 TraceCheckUtils]: 9: Hoare triple {4758#(<= |fibo1_#in~n| 2)} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {4758#(<= |fibo1_#in~n| 2)} is VALID [2020-07-17 22:20:25,100 INFO L263 TraceCheckUtils]: 10: Hoare triple {4758#(<= |fibo1_#in~n| 2)} call #t~ret1 := fibo2(~n - 2); {4610#true} is VALID [2020-07-17 22:20:25,101 INFO L280 TraceCheckUtils]: 11: Hoare triple {4610#true} ~n := #in~n; {4610#true} is VALID [2020-07-17 22:20:25,101 INFO L280 TraceCheckUtils]: 12: Hoare triple {4610#true} assume ~n < 1;#res := 0; {4610#true} is VALID [2020-07-17 22:20:25,101 INFO L280 TraceCheckUtils]: 13: Hoare triple {4610#true} assume true; {4610#true} is VALID [2020-07-17 22:20:25,103 INFO L275 TraceCheckUtils]: 14: Hoare quadruple {4610#true} {4758#(<= |fibo1_#in~n| 2)} #59#return; {4758#(<= |fibo1_#in~n| 2)} is VALID [2020-07-17 22:20:25,104 INFO L280 TraceCheckUtils]: 15: Hoare triple {4758#(<= |fibo1_#in~n| 2)} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647;#res := #t~ret0 + #t~ret1;havoc #t~ret1;havoc #t~ret0; {4758#(<= |fibo1_#in~n| 2)} is VALID [2020-07-17 22:20:25,105 INFO L280 TraceCheckUtils]: 16: Hoare triple {4758#(<= |fibo1_#in~n| 2)} assume true; {4758#(<= |fibo1_#in~n| 2)} is VALID [2020-07-17 22:20:25,107 INFO L275 TraceCheckUtils]: 17: Hoare quadruple {4758#(<= |fibo1_#in~n| 2)} {4727#(= fibo2_~n |fibo2_#in~n|)} #53#return; {4746#(<= |fibo2_#in~n| 3)} is VALID [2020-07-17 22:20:25,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:20:25,116 INFO L280 TraceCheckUtils]: 0: Hoare triple {4610#true} ~n := #in~n; {4610#true} is VALID [2020-07-17 22:20:25,117 INFO L280 TraceCheckUtils]: 1: Hoare triple {4610#true} assume !(~n < 1); {4610#true} is VALID [2020-07-17 22:20:25,117 INFO L280 TraceCheckUtils]: 2: Hoare triple {4610#true} assume 1 == ~n;#res := 1; {4610#true} is VALID [2020-07-17 22:20:25,117 INFO L280 TraceCheckUtils]: 3: Hoare triple {4610#true} assume true; {4610#true} is VALID [2020-07-17 22:20:25,120 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {4610#true} {4746#(<= |fibo2_#in~n| 3)} #55#return; {4746#(<= |fibo2_#in~n| 3)} is VALID [2020-07-17 22:20:25,121 INFO L280 TraceCheckUtils]: 0: Hoare triple {4610#true} ~n := #in~n; {4727#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-17 22:20:25,123 INFO L280 TraceCheckUtils]: 1: Hoare triple {4727#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {4727#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-17 22:20:25,124 INFO L280 TraceCheckUtils]: 2: Hoare triple {4727#(= fibo2_~n |fibo2_#in~n|)} assume !(1 == ~n); {4727#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-17 22:20:25,125 INFO L263 TraceCheckUtils]: 3: Hoare triple {4727#(= fibo2_~n |fibo2_#in~n|)} call #t~ret2 := fibo1(~n - 1); {4610#true} is VALID [2020-07-17 22:20:25,126 INFO L280 TraceCheckUtils]: 4: Hoare triple {4610#true} ~n := #in~n; {4752#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-17 22:20:25,127 INFO L280 TraceCheckUtils]: 5: Hoare triple {4752#(= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {4752#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-17 22:20:25,128 INFO L280 TraceCheckUtils]: 6: Hoare triple {4752#(= fibo1_~n |fibo1_#in~n|)} assume !(1 == ~n); {4752#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-17 22:20:25,128 INFO L263 TraceCheckUtils]: 7: Hoare triple {4752#(= fibo1_~n |fibo1_#in~n|)} call #t~ret0 := fibo2(~n - 1); {4610#true} is VALID [2020-07-17 22:20:25,129 INFO L280 TraceCheckUtils]: 8: Hoare triple {4610#true} ~n := #in~n; {4727#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-17 22:20:25,130 INFO L280 TraceCheckUtils]: 9: Hoare triple {4727#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {4727#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-17 22:20:25,132 INFO L280 TraceCheckUtils]: 10: Hoare triple {4727#(= fibo2_~n |fibo2_#in~n|)} assume 1 == ~n;#res := 1; {4763#(<= |fibo2_#in~n| 1)} is VALID [2020-07-17 22:20:25,132 INFO L280 TraceCheckUtils]: 11: Hoare triple {4763#(<= |fibo2_#in~n| 1)} assume true; {4763#(<= |fibo2_#in~n| 1)} is VALID [2020-07-17 22:20:25,134 INFO L275 TraceCheckUtils]: 12: Hoare quadruple {4763#(<= |fibo2_#in~n| 1)} {4752#(= fibo1_~n |fibo1_#in~n|)} #57#return; {4758#(<= |fibo1_#in~n| 2)} is VALID [2020-07-17 22:20:25,135 INFO L280 TraceCheckUtils]: 13: Hoare triple {4758#(<= |fibo1_#in~n| 2)} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {4758#(<= |fibo1_#in~n| 2)} is VALID [2020-07-17 22:20:25,136 INFO L263 TraceCheckUtils]: 14: Hoare triple {4758#(<= |fibo1_#in~n| 2)} call #t~ret1 := fibo2(~n - 2); {4610#true} is VALID [2020-07-17 22:20:25,136 INFO L280 TraceCheckUtils]: 15: Hoare triple {4610#true} ~n := #in~n; {4610#true} is VALID [2020-07-17 22:20:25,136 INFO L280 TraceCheckUtils]: 16: Hoare triple {4610#true} assume ~n < 1;#res := 0; {4610#true} is VALID [2020-07-17 22:20:25,137 INFO L280 TraceCheckUtils]: 17: Hoare triple {4610#true} assume true; {4610#true} is VALID [2020-07-17 22:20:25,138 INFO L275 TraceCheckUtils]: 18: Hoare quadruple {4610#true} {4758#(<= |fibo1_#in~n| 2)} #59#return; {4758#(<= |fibo1_#in~n| 2)} is VALID [2020-07-17 22:20:25,139 INFO L280 TraceCheckUtils]: 19: Hoare triple {4758#(<= |fibo1_#in~n| 2)} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647;#res := #t~ret0 + #t~ret1;havoc #t~ret1;havoc #t~ret0; {4758#(<= |fibo1_#in~n| 2)} is VALID [2020-07-17 22:20:25,140 INFO L280 TraceCheckUtils]: 20: Hoare triple {4758#(<= |fibo1_#in~n| 2)} assume true; {4758#(<= |fibo1_#in~n| 2)} is VALID [2020-07-17 22:20:25,141 INFO L275 TraceCheckUtils]: 21: Hoare quadruple {4758#(<= |fibo1_#in~n| 2)} {4727#(= fibo2_~n |fibo2_#in~n|)} #53#return; {4746#(<= |fibo2_#in~n| 3)} is VALID [2020-07-17 22:20:25,143 INFO L280 TraceCheckUtils]: 22: Hoare triple {4746#(<= |fibo2_#in~n| 3)} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {4746#(<= |fibo2_#in~n| 3)} is VALID [2020-07-17 22:20:25,143 INFO L263 TraceCheckUtils]: 23: Hoare triple {4746#(<= |fibo2_#in~n| 3)} call #t~ret3 := fibo1(~n - 2); {4610#true} is VALID [2020-07-17 22:20:25,143 INFO L280 TraceCheckUtils]: 24: Hoare triple {4610#true} ~n := #in~n; {4610#true} is VALID [2020-07-17 22:20:25,144 INFO L280 TraceCheckUtils]: 25: Hoare triple {4610#true} assume !(~n < 1); {4610#true} is VALID [2020-07-17 22:20:25,144 INFO L280 TraceCheckUtils]: 26: Hoare triple {4610#true} assume 1 == ~n;#res := 1; {4610#true} is VALID [2020-07-17 22:20:25,144 INFO L280 TraceCheckUtils]: 27: Hoare triple {4610#true} assume true; {4610#true} is VALID [2020-07-17 22:20:25,146 INFO L275 TraceCheckUtils]: 28: Hoare quadruple {4610#true} {4746#(<= |fibo2_#in~n| 3)} #55#return; {4746#(<= |fibo2_#in~n| 3)} is VALID [2020-07-17 22:20:25,147 INFO L280 TraceCheckUtils]: 29: Hoare triple {4746#(<= |fibo2_#in~n| 3)} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647;#res := #t~ret2 + #t~ret3;havoc #t~ret3;havoc #t~ret2; {4746#(<= |fibo2_#in~n| 3)} is VALID [2020-07-17 22:20:25,147 INFO L280 TraceCheckUtils]: 30: Hoare triple {4746#(<= |fibo2_#in~n| 3)} assume true; {4746#(<= |fibo2_#in~n| 3)} is VALID [2020-07-17 22:20:25,149 INFO L275 TraceCheckUtils]: 31: Hoare quadruple {4746#(<= |fibo2_#in~n| 3)} {4610#true} #57#return; {4707#(<= fibo1_~n 4)} is VALID [2020-07-17 22:20:25,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:20:25,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:20:25,237 INFO L280 TraceCheckUtils]: 0: Hoare triple {4610#true} ~n := #in~n; {4752#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-17 22:20:25,238 INFO L280 TraceCheckUtils]: 1: Hoare triple {4752#(= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {4752#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-17 22:20:25,239 INFO L280 TraceCheckUtils]: 2: Hoare triple {4752#(= fibo1_~n |fibo1_#in~n|)} assume 1 == ~n;#res := 1; {4775#(<= |fibo1_#in~n| 1)} is VALID [2020-07-17 22:20:25,240 INFO L280 TraceCheckUtils]: 3: Hoare triple {4775#(<= |fibo1_#in~n| 1)} assume true; {4775#(<= |fibo1_#in~n| 1)} is VALID [2020-07-17 22:20:25,242 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {4775#(<= |fibo1_#in~n| 1)} {4610#true} #53#return; {4769#(<= fibo2_~n 2)} is VALID [2020-07-17 22:20:25,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:20:25,274 INFO L280 TraceCheckUtils]: 0: Hoare triple {4610#true} ~n := #in~n; {4752#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-17 22:20:25,275 INFO L280 TraceCheckUtils]: 1: Hoare triple {4752#(= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {4776#(<= 1 |fibo1_#in~n|)} is VALID [2020-07-17 22:20:25,276 INFO L280 TraceCheckUtils]: 2: Hoare triple {4776#(<= 1 |fibo1_#in~n|)} assume 1 == ~n;#res := 1; {4776#(<= 1 |fibo1_#in~n|)} is VALID [2020-07-17 22:20:25,277 INFO L280 TraceCheckUtils]: 3: Hoare triple {4776#(<= 1 |fibo1_#in~n|)} assume true; {4776#(<= 1 |fibo1_#in~n|)} is VALID [2020-07-17 22:20:25,279 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {4776#(<= 1 |fibo1_#in~n|)} {4769#(<= fibo2_~n 2)} #55#return; {4611#false} is VALID [2020-07-17 22:20:25,280 INFO L280 TraceCheckUtils]: 0: Hoare triple {4610#true} ~n := #in~n; {4610#true} is VALID [2020-07-17 22:20:25,280 INFO L280 TraceCheckUtils]: 1: Hoare triple {4610#true} assume !(~n < 1); {4610#true} is VALID [2020-07-17 22:20:25,280 INFO L280 TraceCheckUtils]: 2: Hoare triple {4610#true} assume !(1 == ~n); {4610#true} is VALID [2020-07-17 22:20:25,280 INFO L263 TraceCheckUtils]: 3: Hoare triple {4610#true} call #t~ret2 := fibo1(~n - 1); {4610#true} is VALID [2020-07-17 22:20:25,281 INFO L280 TraceCheckUtils]: 4: Hoare triple {4610#true} ~n := #in~n; {4752#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-17 22:20:25,282 INFO L280 TraceCheckUtils]: 5: Hoare triple {4752#(= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {4752#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-17 22:20:25,284 INFO L280 TraceCheckUtils]: 6: Hoare triple {4752#(= fibo1_~n |fibo1_#in~n|)} assume 1 == ~n;#res := 1; {4775#(<= |fibo1_#in~n| 1)} is VALID [2020-07-17 22:20:25,285 INFO L280 TraceCheckUtils]: 7: Hoare triple {4775#(<= |fibo1_#in~n| 1)} assume true; {4775#(<= |fibo1_#in~n| 1)} is VALID [2020-07-17 22:20:25,287 INFO L275 TraceCheckUtils]: 8: Hoare quadruple {4775#(<= |fibo1_#in~n| 1)} {4610#true} #53#return; {4769#(<= fibo2_~n 2)} is VALID [2020-07-17 22:20:25,288 INFO L280 TraceCheckUtils]: 9: Hoare triple {4769#(<= fibo2_~n 2)} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {4769#(<= fibo2_~n 2)} is VALID [2020-07-17 22:20:25,288 INFO L263 TraceCheckUtils]: 10: Hoare triple {4769#(<= fibo2_~n 2)} call #t~ret3 := fibo1(~n - 2); {4610#true} is VALID [2020-07-17 22:20:25,289 INFO L280 TraceCheckUtils]: 11: Hoare triple {4610#true} ~n := #in~n; {4752#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-17 22:20:25,290 INFO L280 TraceCheckUtils]: 12: Hoare triple {4752#(= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {4776#(<= 1 |fibo1_#in~n|)} is VALID [2020-07-17 22:20:25,291 INFO L280 TraceCheckUtils]: 13: Hoare triple {4776#(<= 1 |fibo1_#in~n|)} assume 1 == ~n;#res := 1; {4776#(<= 1 |fibo1_#in~n|)} is VALID [2020-07-17 22:20:25,292 INFO L280 TraceCheckUtils]: 14: Hoare triple {4776#(<= 1 |fibo1_#in~n|)} assume true; {4776#(<= 1 |fibo1_#in~n|)} is VALID [2020-07-17 22:20:25,293 INFO L275 TraceCheckUtils]: 15: Hoare quadruple {4776#(<= 1 |fibo1_#in~n|)} {4769#(<= fibo2_~n 2)} #55#return; {4611#false} is VALID [2020-07-17 22:20:25,294 INFO L280 TraceCheckUtils]: 16: Hoare triple {4611#false} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647;#res := #t~ret2 + #t~ret3;havoc #t~ret3;havoc #t~ret2; {4611#false} is VALID [2020-07-17 22:20:25,294 INFO L280 TraceCheckUtils]: 17: Hoare triple {4611#false} assume true; {4611#false} is VALID [2020-07-17 22:20:25,294 INFO L275 TraceCheckUtils]: 18: Hoare quadruple {4611#false} {4707#(<= fibo1_~n 4)} #59#return; {4611#false} is VALID [2020-07-17 22:20:25,295 INFO L280 TraceCheckUtils]: 0: Hoare triple {4610#true} ~n := #in~n; {4610#true} is VALID [2020-07-17 22:20:25,295 INFO L280 TraceCheckUtils]: 1: Hoare triple {4610#true} assume !(~n < 1); {4610#true} is VALID [2020-07-17 22:20:25,296 INFO L280 TraceCheckUtils]: 2: Hoare triple {4610#true} assume !(1 == ~n); {4610#true} is VALID [2020-07-17 22:20:25,296 INFO L263 TraceCheckUtils]: 3: Hoare triple {4610#true} call #t~ret0 := fibo2(~n - 1); {4610#true} is VALID [2020-07-17 22:20:25,297 INFO L280 TraceCheckUtils]: 4: Hoare triple {4610#true} ~n := #in~n; {4727#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-17 22:20:25,298 INFO L280 TraceCheckUtils]: 5: Hoare triple {4727#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {4727#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-17 22:20:25,298 INFO L280 TraceCheckUtils]: 6: Hoare triple {4727#(= fibo2_~n |fibo2_#in~n|)} assume !(1 == ~n); {4727#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-17 22:20:25,299 INFO L263 TraceCheckUtils]: 7: Hoare triple {4727#(= fibo2_~n |fibo2_#in~n|)} call #t~ret2 := fibo1(~n - 1); {4610#true} is VALID [2020-07-17 22:20:25,299 INFO L280 TraceCheckUtils]: 8: Hoare triple {4610#true} ~n := #in~n; {4752#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-17 22:20:25,300 INFO L280 TraceCheckUtils]: 9: Hoare triple {4752#(= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {4752#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-17 22:20:25,301 INFO L280 TraceCheckUtils]: 10: Hoare triple {4752#(= fibo1_~n |fibo1_#in~n|)} assume !(1 == ~n); {4752#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-17 22:20:25,301 INFO L263 TraceCheckUtils]: 11: Hoare triple {4752#(= fibo1_~n |fibo1_#in~n|)} call #t~ret0 := fibo2(~n - 1); {4610#true} is VALID [2020-07-17 22:20:25,302 INFO L280 TraceCheckUtils]: 12: Hoare triple {4610#true} ~n := #in~n; {4727#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-17 22:20:25,302 INFO L280 TraceCheckUtils]: 13: Hoare triple {4727#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {4727#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-17 22:20:25,303 INFO L280 TraceCheckUtils]: 14: Hoare triple {4727#(= fibo2_~n |fibo2_#in~n|)} assume 1 == ~n;#res := 1; {4763#(<= |fibo2_#in~n| 1)} is VALID [2020-07-17 22:20:25,304 INFO L280 TraceCheckUtils]: 15: Hoare triple {4763#(<= |fibo2_#in~n| 1)} assume true; {4763#(<= |fibo2_#in~n| 1)} is VALID [2020-07-17 22:20:25,306 INFO L275 TraceCheckUtils]: 16: Hoare quadruple {4763#(<= |fibo2_#in~n| 1)} {4752#(= fibo1_~n |fibo1_#in~n|)} #57#return; {4758#(<= |fibo1_#in~n| 2)} is VALID [2020-07-17 22:20:25,307 INFO L280 TraceCheckUtils]: 17: Hoare triple {4758#(<= |fibo1_#in~n| 2)} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {4758#(<= |fibo1_#in~n| 2)} is VALID [2020-07-17 22:20:25,307 INFO L263 TraceCheckUtils]: 18: Hoare triple {4758#(<= |fibo1_#in~n| 2)} call #t~ret1 := fibo2(~n - 2); {4610#true} is VALID [2020-07-17 22:20:25,307 INFO L280 TraceCheckUtils]: 19: Hoare triple {4610#true} ~n := #in~n; {4610#true} is VALID [2020-07-17 22:20:25,307 INFO L280 TraceCheckUtils]: 20: Hoare triple {4610#true} assume ~n < 1;#res := 0; {4610#true} is VALID [2020-07-17 22:20:25,308 INFO L280 TraceCheckUtils]: 21: Hoare triple {4610#true} assume true; {4610#true} is VALID [2020-07-17 22:20:25,309 INFO L275 TraceCheckUtils]: 22: Hoare quadruple {4610#true} {4758#(<= |fibo1_#in~n| 2)} #59#return; {4758#(<= |fibo1_#in~n| 2)} is VALID [2020-07-17 22:20:25,309 INFO L280 TraceCheckUtils]: 23: Hoare triple {4758#(<= |fibo1_#in~n| 2)} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647;#res := #t~ret0 + #t~ret1;havoc #t~ret1;havoc #t~ret0; {4758#(<= |fibo1_#in~n| 2)} is VALID [2020-07-17 22:20:25,310 INFO L280 TraceCheckUtils]: 24: Hoare triple {4758#(<= |fibo1_#in~n| 2)} assume true; {4758#(<= |fibo1_#in~n| 2)} is VALID [2020-07-17 22:20:25,311 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {4758#(<= |fibo1_#in~n| 2)} {4727#(= fibo2_~n |fibo2_#in~n|)} #53#return; {4746#(<= |fibo2_#in~n| 3)} is VALID [2020-07-17 22:20:25,312 INFO L280 TraceCheckUtils]: 26: Hoare triple {4746#(<= |fibo2_#in~n| 3)} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {4746#(<= |fibo2_#in~n| 3)} is VALID [2020-07-17 22:20:25,313 INFO L263 TraceCheckUtils]: 27: Hoare triple {4746#(<= |fibo2_#in~n| 3)} call #t~ret3 := fibo1(~n - 2); {4610#true} is VALID [2020-07-17 22:20:25,313 INFO L280 TraceCheckUtils]: 28: Hoare triple {4610#true} ~n := #in~n; {4610#true} is VALID [2020-07-17 22:20:25,313 INFO L280 TraceCheckUtils]: 29: Hoare triple {4610#true} assume !(~n < 1); {4610#true} is VALID [2020-07-17 22:20:25,313 INFO L280 TraceCheckUtils]: 30: Hoare triple {4610#true} assume 1 == ~n;#res := 1; {4610#true} is VALID [2020-07-17 22:20:25,313 INFO L280 TraceCheckUtils]: 31: Hoare triple {4610#true} assume true; {4610#true} is VALID [2020-07-17 22:20:25,315 INFO L275 TraceCheckUtils]: 32: Hoare quadruple {4610#true} {4746#(<= |fibo2_#in~n| 3)} #55#return; {4746#(<= |fibo2_#in~n| 3)} is VALID [2020-07-17 22:20:25,315 INFO L280 TraceCheckUtils]: 33: Hoare triple {4746#(<= |fibo2_#in~n| 3)} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647;#res := #t~ret2 + #t~ret3;havoc #t~ret3;havoc #t~ret2; {4746#(<= |fibo2_#in~n| 3)} is VALID [2020-07-17 22:20:25,316 INFO L280 TraceCheckUtils]: 34: Hoare triple {4746#(<= |fibo2_#in~n| 3)} assume true; {4746#(<= |fibo2_#in~n| 3)} is VALID [2020-07-17 22:20:25,318 INFO L275 TraceCheckUtils]: 35: Hoare quadruple {4746#(<= |fibo2_#in~n| 3)} {4610#true} #57#return; {4707#(<= fibo1_~n 4)} is VALID [2020-07-17 22:20:25,319 INFO L280 TraceCheckUtils]: 36: Hoare triple {4707#(<= fibo1_~n 4)} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {4707#(<= fibo1_~n 4)} is VALID [2020-07-17 22:20:25,319 INFO L263 TraceCheckUtils]: 37: Hoare triple {4707#(<= fibo1_~n 4)} call #t~ret1 := fibo2(~n - 2); {4610#true} is VALID [2020-07-17 22:20:25,319 INFO L280 TraceCheckUtils]: 38: Hoare triple {4610#true} ~n := #in~n; {4610#true} is VALID [2020-07-17 22:20:25,319 INFO L280 TraceCheckUtils]: 39: Hoare triple {4610#true} assume !(~n < 1); {4610#true} is VALID [2020-07-17 22:20:25,320 INFO L280 TraceCheckUtils]: 40: Hoare triple {4610#true} assume !(1 == ~n); {4610#true} is VALID [2020-07-17 22:20:25,320 INFO L263 TraceCheckUtils]: 41: Hoare triple {4610#true} call #t~ret2 := fibo1(~n - 1); {4610#true} is VALID [2020-07-17 22:20:25,321 INFO L280 TraceCheckUtils]: 42: Hoare triple {4610#true} ~n := #in~n; {4752#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-17 22:20:25,321 INFO L280 TraceCheckUtils]: 43: Hoare triple {4752#(= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {4752#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-17 22:20:25,322 INFO L280 TraceCheckUtils]: 44: Hoare triple {4752#(= fibo1_~n |fibo1_#in~n|)} assume 1 == ~n;#res := 1; {4775#(<= |fibo1_#in~n| 1)} is VALID [2020-07-17 22:20:25,323 INFO L280 TraceCheckUtils]: 45: Hoare triple {4775#(<= |fibo1_#in~n| 1)} assume true; {4775#(<= |fibo1_#in~n| 1)} is VALID [2020-07-17 22:20:25,324 INFO L275 TraceCheckUtils]: 46: Hoare quadruple {4775#(<= |fibo1_#in~n| 1)} {4610#true} #53#return; {4769#(<= fibo2_~n 2)} is VALID [2020-07-17 22:20:25,325 INFO L280 TraceCheckUtils]: 47: Hoare triple {4769#(<= fibo2_~n 2)} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {4769#(<= fibo2_~n 2)} is VALID [2020-07-17 22:20:25,326 INFO L263 TraceCheckUtils]: 48: Hoare triple {4769#(<= fibo2_~n 2)} call #t~ret3 := fibo1(~n - 2); {4610#true} is VALID [2020-07-17 22:20:25,327 INFO L280 TraceCheckUtils]: 49: Hoare triple {4610#true} ~n := #in~n; {4752#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-17 22:20:25,328 INFO L280 TraceCheckUtils]: 50: Hoare triple {4752#(= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {4776#(<= 1 |fibo1_#in~n|)} is VALID [2020-07-17 22:20:25,329 INFO L280 TraceCheckUtils]: 51: Hoare triple {4776#(<= 1 |fibo1_#in~n|)} assume 1 == ~n;#res := 1; {4776#(<= 1 |fibo1_#in~n|)} is VALID [2020-07-17 22:20:25,330 INFO L280 TraceCheckUtils]: 52: Hoare triple {4776#(<= 1 |fibo1_#in~n|)} assume true; {4776#(<= 1 |fibo1_#in~n|)} is VALID [2020-07-17 22:20:25,331 INFO L275 TraceCheckUtils]: 53: Hoare quadruple {4776#(<= 1 |fibo1_#in~n|)} {4769#(<= fibo2_~n 2)} #55#return; {4611#false} is VALID [2020-07-17 22:20:25,332 INFO L280 TraceCheckUtils]: 54: Hoare triple {4611#false} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647;#res := #t~ret2 + #t~ret3;havoc #t~ret3;havoc #t~ret2; {4611#false} is VALID [2020-07-17 22:20:25,332 INFO L280 TraceCheckUtils]: 55: Hoare triple {4611#false} assume true; {4611#false} is VALID [2020-07-17 22:20:25,333 INFO L275 TraceCheckUtils]: 56: Hoare quadruple {4611#false} {4707#(<= fibo1_~n 4)} #59#return; {4611#false} is VALID [2020-07-17 22:20:25,333 INFO L280 TraceCheckUtils]: 57: Hoare triple {4611#false} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647;#res := #t~ret0 + #t~ret1;havoc #t~ret1;havoc #t~ret0; {4611#false} is VALID [2020-07-17 22:20:25,333 INFO L280 TraceCheckUtils]: 58: Hoare triple {4611#false} assume true; {4611#false} is VALID [2020-07-17 22:20:25,334 INFO L275 TraceCheckUtils]: 59: Hoare quadruple {4611#false} {4614#(<= main_~x~0 4)} #51#return; {4611#false} is VALID [2020-07-17 22:20:25,339 INFO L263 TraceCheckUtils]: 0: Hoare triple {4610#true} call ULTIMATE.init(); {4610#true} is VALID [2020-07-17 22:20:25,339 INFO L280 TraceCheckUtils]: 1: Hoare triple {4610#true} assume true; {4610#true} is VALID [2020-07-17 22:20:25,339 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {4610#true} {4610#true} #47#return; {4610#true} is VALID [2020-07-17 22:20:25,340 INFO L263 TraceCheckUtils]: 3: Hoare triple {4610#true} call #t~ret5 := main(); {4610#true} is VALID [2020-07-17 22:20:25,341 INFO L280 TraceCheckUtils]: 4: Hoare triple {4610#true} ~x~0 := 4; {4614#(<= main_~x~0 4)} is VALID [2020-07-17 22:20:25,341 INFO L263 TraceCheckUtils]: 5: Hoare triple {4614#(<= main_~x~0 4)} call #t~ret4 := fibo1(~x~0); {4610#true} is VALID [2020-07-17 22:20:25,341 INFO L280 TraceCheckUtils]: 6: Hoare triple {4610#true} ~n := #in~n; {4610#true} is VALID [2020-07-17 22:20:25,342 INFO L280 TraceCheckUtils]: 7: Hoare triple {4610#true} assume !(~n < 1); {4610#true} is VALID [2020-07-17 22:20:25,342 INFO L280 TraceCheckUtils]: 8: Hoare triple {4610#true} assume !(1 == ~n); {4610#true} is VALID [2020-07-17 22:20:25,342 INFO L263 TraceCheckUtils]: 9: Hoare triple {4610#true} call #t~ret0 := fibo2(~n - 1); {4610#true} is VALID [2020-07-17 22:20:25,343 INFO L280 TraceCheckUtils]: 10: Hoare triple {4610#true} ~n := #in~n; {4727#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-17 22:20:25,344 INFO L280 TraceCheckUtils]: 11: Hoare triple {4727#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {4727#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-17 22:20:25,344 INFO L280 TraceCheckUtils]: 12: Hoare triple {4727#(= fibo2_~n |fibo2_#in~n|)} assume !(1 == ~n); {4727#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-17 22:20:25,345 INFO L263 TraceCheckUtils]: 13: Hoare triple {4727#(= fibo2_~n |fibo2_#in~n|)} call #t~ret2 := fibo1(~n - 1); {4610#true} is VALID [2020-07-17 22:20:25,345 INFO L280 TraceCheckUtils]: 14: Hoare triple {4610#true} ~n := #in~n; {4752#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-17 22:20:25,346 INFO L280 TraceCheckUtils]: 15: Hoare triple {4752#(= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {4752#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-17 22:20:25,347 INFO L280 TraceCheckUtils]: 16: Hoare triple {4752#(= fibo1_~n |fibo1_#in~n|)} assume !(1 == ~n); {4752#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-17 22:20:25,347 INFO L263 TraceCheckUtils]: 17: Hoare triple {4752#(= fibo1_~n |fibo1_#in~n|)} call #t~ret0 := fibo2(~n - 1); {4610#true} is VALID [2020-07-17 22:20:25,348 INFO L280 TraceCheckUtils]: 18: Hoare triple {4610#true} ~n := #in~n; {4727#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-17 22:20:25,349 INFO L280 TraceCheckUtils]: 19: Hoare triple {4727#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {4727#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-17 22:20:25,350 INFO L280 TraceCheckUtils]: 20: Hoare triple {4727#(= fibo2_~n |fibo2_#in~n|)} assume 1 == ~n;#res := 1; {4763#(<= |fibo2_#in~n| 1)} is VALID [2020-07-17 22:20:25,351 INFO L280 TraceCheckUtils]: 21: Hoare triple {4763#(<= |fibo2_#in~n| 1)} assume true; {4763#(<= |fibo2_#in~n| 1)} is VALID [2020-07-17 22:20:25,353 INFO L275 TraceCheckUtils]: 22: Hoare quadruple {4763#(<= |fibo2_#in~n| 1)} {4752#(= fibo1_~n |fibo1_#in~n|)} #57#return; {4758#(<= |fibo1_#in~n| 2)} is VALID [2020-07-17 22:20:25,354 INFO L280 TraceCheckUtils]: 23: Hoare triple {4758#(<= |fibo1_#in~n| 2)} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {4758#(<= |fibo1_#in~n| 2)} is VALID [2020-07-17 22:20:25,354 INFO L263 TraceCheckUtils]: 24: Hoare triple {4758#(<= |fibo1_#in~n| 2)} call #t~ret1 := fibo2(~n - 2); {4610#true} is VALID [2020-07-17 22:20:25,354 INFO L280 TraceCheckUtils]: 25: Hoare triple {4610#true} ~n := #in~n; {4610#true} is VALID [2020-07-17 22:20:25,354 INFO L280 TraceCheckUtils]: 26: Hoare triple {4610#true} assume ~n < 1;#res := 0; {4610#true} is VALID [2020-07-17 22:20:25,355 INFO L280 TraceCheckUtils]: 27: Hoare triple {4610#true} assume true; {4610#true} is VALID [2020-07-17 22:20:25,356 INFO L275 TraceCheckUtils]: 28: Hoare quadruple {4610#true} {4758#(<= |fibo1_#in~n| 2)} #59#return; {4758#(<= |fibo1_#in~n| 2)} is VALID [2020-07-17 22:20:25,357 INFO L280 TraceCheckUtils]: 29: Hoare triple {4758#(<= |fibo1_#in~n| 2)} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647;#res := #t~ret0 + #t~ret1;havoc #t~ret1;havoc #t~ret0; {4758#(<= |fibo1_#in~n| 2)} is VALID [2020-07-17 22:20:25,358 INFO L280 TraceCheckUtils]: 30: Hoare triple {4758#(<= |fibo1_#in~n| 2)} assume true; {4758#(<= |fibo1_#in~n| 2)} is VALID [2020-07-17 22:20:25,359 INFO L275 TraceCheckUtils]: 31: Hoare quadruple {4758#(<= |fibo1_#in~n| 2)} {4727#(= fibo2_~n |fibo2_#in~n|)} #53#return; {4746#(<= |fibo2_#in~n| 3)} is VALID [2020-07-17 22:20:25,361 INFO L280 TraceCheckUtils]: 32: Hoare triple {4746#(<= |fibo2_#in~n| 3)} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {4746#(<= |fibo2_#in~n| 3)} is VALID [2020-07-17 22:20:25,361 INFO L263 TraceCheckUtils]: 33: Hoare triple {4746#(<= |fibo2_#in~n| 3)} call #t~ret3 := fibo1(~n - 2); {4610#true} is VALID [2020-07-17 22:20:25,361 INFO L280 TraceCheckUtils]: 34: Hoare triple {4610#true} ~n := #in~n; {4610#true} is VALID [2020-07-17 22:20:25,362 INFO L280 TraceCheckUtils]: 35: Hoare triple {4610#true} assume !(~n < 1); {4610#true} is VALID [2020-07-17 22:20:25,362 INFO L280 TraceCheckUtils]: 36: Hoare triple {4610#true} assume 1 == ~n;#res := 1; {4610#true} is VALID [2020-07-17 22:20:25,362 INFO L280 TraceCheckUtils]: 37: Hoare triple {4610#true} assume true; {4610#true} is VALID [2020-07-17 22:20:25,364 INFO L275 TraceCheckUtils]: 38: Hoare quadruple {4610#true} {4746#(<= |fibo2_#in~n| 3)} #55#return; {4746#(<= |fibo2_#in~n| 3)} is VALID [2020-07-17 22:20:25,365 INFO L280 TraceCheckUtils]: 39: Hoare triple {4746#(<= |fibo2_#in~n| 3)} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647;#res := #t~ret2 + #t~ret3;havoc #t~ret3;havoc #t~ret2; {4746#(<= |fibo2_#in~n| 3)} is VALID [2020-07-17 22:20:25,366 INFO L280 TraceCheckUtils]: 40: Hoare triple {4746#(<= |fibo2_#in~n| 3)} assume true; {4746#(<= |fibo2_#in~n| 3)} is VALID [2020-07-17 22:20:25,368 INFO L275 TraceCheckUtils]: 41: Hoare quadruple {4746#(<= |fibo2_#in~n| 3)} {4610#true} #57#return; {4707#(<= fibo1_~n 4)} is VALID [2020-07-17 22:20:25,370 INFO L280 TraceCheckUtils]: 42: Hoare triple {4707#(<= fibo1_~n 4)} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {4707#(<= fibo1_~n 4)} is VALID [2020-07-17 22:20:25,370 INFO L263 TraceCheckUtils]: 43: Hoare triple {4707#(<= fibo1_~n 4)} call #t~ret1 := fibo2(~n - 2); {4610#true} is VALID [2020-07-17 22:20:25,370 INFO L280 TraceCheckUtils]: 44: Hoare triple {4610#true} ~n := #in~n; {4610#true} is VALID [2020-07-17 22:20:25,371 INFO L280 TraceCheckUtils]: 45: Hoare triple {4610#true} assume !(~n < 1); {4610#true} is VALID [2020-07-17 22:20:25,371 INFO L280 TraceCheckUtils]: 46: Hoare triple {4610#true} assume !(1 == ~n); {4610#true} is VALID [2020-07-17 22:20:25,371 INFO L263 TraceCheckUtils]: 47: Hoare triple {4610#true} call #t~ret2 := fibo1(~n - 1); {4610#true} is VALID [2020-07-17 22:20:25,372 INFO L280 TraceCheckUtils]: 48: Hoare triple {4610#true} ~n := #in~n; {4752#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-17 22:20:25,373 INFO L280 TraceCheckUtils]: 49: Hoare triple {4752#(= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {4752#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-17 22:20:25,374 INFO L280 TraceCheckUtils]: 50: Hoare triple {4752#(= fibo1_~n |fibo1_#in~n|)} assume 1 == ~n;#res := 1; {4775#(<= |fibo1_#in~n| 1)} is VALID [2020-07-17 22:20:25,375 INFO L280 TraceCheckUtils]: 51: Hoare triple {4775#(<= |fibo1_#in~n| 1)} assume true; {4775#(<= |fibo1_#in~n| 1)} is VALID [2020-07-17 22:20:25,376 INFO L275 TraceCheckUtils]: 52: Hoare quadruple {4775#(<= |fibo1_#in~n| 1)} {4610#true} #53#return; {4769#(<= fibo2_~n 2)} is VALID [2020-07-17 22:20:25,377 INFO L280 TraceCheckUtils]: 53: Hoare triple {4769#(<= fibo2_~n 2)} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {4769#(<= fibo2_~n 2)} is VALID [2020-07-17 22:20:25,378 INFO L263 TraceCheckUtils]: 54: Hoare triple {4769#(<= fibo2_~n 2)} call #t~ret3 := fibo1(~n - 2); {4610#true} is VALID [2020-07-17 22:20:25,378 INFO L280 TraceCheckUtils]: 55: Hoare triple {4610#true} ~n := #in~n; {4752#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-17 22:20:25,379 INFO L280 TraceCheckUtils]: 56: Hoare triple {4752#(= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {4776#(<= 1 |fibo1_#in~n|)} is VALID [2020-07-17 22:20:25,380 INFO L280 TraceCheckUtils]: 57: Hoare triple {4776#(<= 1 |fibo1_#in~n|)} assume 1 == ~n;#res := 1; {4776#(<= 1 |fibo1_#in~n|)} is VALID [2020-07-17 22:20:25,380 INFO L280 TraceCheckUtils]: 58: Hoare triple {4776#(<= 1 |fibo1_#in~n|)} assume true; {4776#(<= 1 |fibo1_#in~n|)} is VALID [2020-07-17 22:20:25,382 INFO L275 TraceCheckUtils]: 59: Hoare quadruple {4776#(<= 1 |fibo1_#in~n|)} {4769#(<= fibo2_~n 2)} #55#return; {4611#false} is VALID [2020-07-17 22:20:25,382 INFO L280 TraceCheckUtils]: 60: Hoare triple {4611#false} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647;#res := #t~ret2 + #t~ret3;havoc #t~ret3;havoc #t~ret2; {4611#false} is VALID [2020-07-17 22:20:25,382 INFO L280 TraceCheckUtils]: 61: Hoare triple {4611#false} assume true; {4611#false} is VALID [2020-07-17 22:20:25,383 INFO L275 TraceCheckUtils]: 62: Hoare quadruple {4611#false} {4707#(<= fibo1_~n 4)} #59#return; {4611#false} is VALID [2020-07-17 22:20:25,383 INFO L280 TraceCheckUtils]: 63: Hoare triple {4611#false} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647;#res := #t~ret0 + #t~ret1;havoc #t~ret1;havoc #t~ret0; {4611#false} is VALID [2020-07-17 22:20:25,383 INFO L280 TraceCheckUtils]: 64: Hoare triple {4611#false} assume true; {4611#false} is VALID [2020-07-17 22:20:25,383 INFO L275 TraceCheckUtils]: 65: Hoare quadruple {4611#false} {4614#(<= main_~x~0 4)} #51#return; {4611#false} is VALID [2020-07-17 22:20:25,384 INFO L280 TraceCheckUtils]: 66: Hoare triple {4611#false} assume -2147483648 <= #t~ret4 && #t~ret4 <= 2147483647;~result~0 := #t~ret4;havoc #t~ret4; {4611#false} is VALID [2020-07-17 22:20:25,384 INFO L280 TraceCheckUtils]: 67: Hoare triple {4611#false} assume 3 != ~result~0; {4611#false} is VALID [2020-07-17 22:20:25,384 INFO L280 TraceCheckUtils]: 68: Hoare triple {4611#false} assume !false; {4611#false} is VALID [2020-07-17 22:20:25,389 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 35 proven. 25 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-07-17 22:20:25,390 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465226973] [2020-07-17 22:20:25,391 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1879348121] [2020-07-17 22:20:25,391 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 22:20:25,453 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-07-17 22:20:25,453 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-17 22:20:25,454 INFO L264 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-17 22:20:25,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:20:25,489 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-17 22:20:25,684 INFO L263 TraceCheckUtils]: 0: Hoare triple {4610#true} call ULTIMATE.init(); {4610#true} is VALID [2020-07-17 22:20:25,685 INFO L280 TraceCheckUtils]: 1: Hoare triple {4610#true} assume true; {4610#true} is VALID [2020-07-17 22:20:25,685 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {4610#true} {4610#true} #47#return; {4610#true} is VALID [2020-07-17 22:20:25,685 INFO L263 TraceCheckUtils]: 3: Hoare triple {4610#true} call #t~ret5 := main(); {4610#true} is VALID [2020-07-17 22:20:25,685 INFO L280 TraceCheckUtils]: 4: Hoare triple {4610#true} ~x~0 := 4; {4614#(<= main_~x~0 4)} is VALID [2020-07-17 22:20:25,686 INFO L263 TraceCheckUtils]: 5: Hoare triple {4614#(<= main_~x~0 4)} call #t~ret4 := fibo1(~x~0); {4610#true} is VALID [2020-07-17 22:20:25,686 INFO L280 TraceCheckUtils]: 6: Hoare triple {4610#true} ~n := #in~n; {4798#(<= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-17 22:20:25,687 INFO L280 TraceCheckUtils]: 7: Hoare triple {4798#(<= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {4798#(<= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-17 22:20:25,687 INFO L280 TraceCheckUtils]: 8: Hoare triple {4798#(<= fibo1_~n |fibo1_#in~n|)} assume !(1 == ~n); {4798#(<= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-17 22:20:25,687 INFO L263 TraceCheckUtils]: 9: Hoare triple {4798#(<= fibo1_~n |fibo1_#in~n|)} call #t~ret0 := fibo2(~n - 1); {4610#true} is VALID [2020-07-17 22:20:25,687 INFO L280 TraceCheckUtils]: 10: Hoare triple {4610#true} ~n := #in~n; {4610#true} is VALID [2020-07-17 22:20:25,687 INFO L280 TraceCheckUtils]: 11: Hoare triple {4610#true} assume !(~n < 1); {4610#true} is VALID [2020-07-17 22:20:25,687 INFO L280 TraceCheckUtils]: 12: Hoare triple {4610#true} assume !(1 == ~n); {4610#true} is VALID [2020-07-17 22:20:25,688 INFO L263 TraceCheckUtils]: 13: Hoare triple {4610#true} call #t~ret2 := fibo1(~n - 1); {4610#true} is VALID [2020-07-17 22:20:25,688 INFO L280 TraceCheckUtils]: 14: Hoare triple {4610#true} ~n := #in~n; {4610#true} is VALID [2020-07-17 22:20:25,688 INFO L280 TraceCheckUtils]: 15: Hoare triple {4610#true} assume !(~n < 1); {4610#true} is VALID [2020-07-17 22:20:25,688 INFO L280 TraceCheckUtils]: 16: Hoare triple {4610#true} assume !(1 == ~n); {4610#true} is VALID [2020-07-17 22:20:25,688 INFO L263 TraceCheckUtils]: 17: Hoare triple {4610#true} call #t~ret0 := fibo2(~n - 1); {4610#true} is VALID [2020-07-17 22:20:25,688 INFO L280 TraceCheckUtils]: 18: Hoare triple {4610#true} ~n := #in~n; {4610#true} is VALID [2020-07-17 22:20:25,688 INFO L280 TraceCheckUtils]: 19: Hoare triple {4610#true} assume !(~n < 1); {4610#true} is VALID [2020-07-17 22:20:25,689 INFO L280 TraceCheckUtils]: 20: Hoare triple {4610#true} assume 1 == ~n;#res := 1; {4610#true} is VALID [2020-07-17 22:20:25,689 INFO L280 TraceCheckUtils]: 21: Hoare triple {4610#true} assume true; {4610#true} is VALID [2020-07-17 22:20:25,689 INFO L275 TraceCheckUtils]: 22: Hoare quadruple {4610#true} {4610#true} #57#return; {4610#true} is VALID [2020-07-17 22:20:25,689 INFO L280 TraceCheckUtils]: 23: Hoare triple {4610#true} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {4610#true} is VALID [2020-07-17 22:20:25,689 INFO L263 TraceCheckUtils]: 24: Hoare triple {4610#true} call #t~ret1 := fibo2(~n - 2); {4610#true} is VALID [2020-07-17 22:20:25,689 INFO L280 TraceCheckUtils]: 25: Hoare triple {4610#true} ~n := #in~n; {4610#true} is VALID [2020-07-17 22:20:25,690 INFO L280 TraceCheckUtils]: 26: Hoare triple {4610#true} assume ~n < 1;#res := 0; {4610#true} is VALID [2020-07-17 22:20:25,690 INFO L280 TraceCheckUtils]: 27: Hoare triple {4610#true} assume true; {4610#true} is VALID [2020-07-17 22:20:25,690 INFO L275 TraceCheckUtils]: 28: Hoare quadruple {4610#true} {4610#true} #59#return; {4610#true} is VALID [2020-07-17 22:20:25,690 INFO L280 TraceCheckUtils]: 29: Hoare triple {4610#true} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647;#res := #t~ret0 + #t~ret1;havoc #t~ret1;havoc #t~ret0; {4610#true} is VALID [2020-07-17 22:20:25,690 INFO L280 TraceCheckUtils]: 30: Hoare triple {4610#true} assume true; {4610#true} is VALID [2020-07-17 22:20:25,690 INFO L275 TraceCheckUtils]: 31: Hoare quadruple {4610#true} {4610#true} #53#return; {4610#true} is VALID [2020-07-17 22:20:25,690 INFO L280 TraceCheckUtils]: 32: Hoare triple {4610#true} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {4610#true} is VALID [2020-07-17 22:20:25,691 INFO L263 TraceCheckUtils]: 33: Hoare triple {4610#true} call #t~ret3 := fibo1(~n - 2); {4610#true} is VALID [2020-07-17 22:20:25,691 INFO L280 TraceCheckUtils]: 34: Hoare triple {4610#true} ~n := #in~n; {4610#true} is VALID [2020-07-17 22:20:25,691 INFO L280 TraceCheckUtils]: 35: Hoare triple {4610#true} assume !(~n < 1); {4610#true} is VALID [2020-07-17 22:20:25,691 INFO L280 TraceCheckUtils]: 36: Hoare triple {4610#true} assume 1 == ~n;#res := 1; {4610#true} is VALID [2020-07-17 22:20:25,692 INFO L280 TraceCheckUtils]: 37: Hoare triple {4610#true} assume true; {4610#true} is VALID [2020-07-17 22:20:25,692 INFO L275 TraceCheckUtils]: 38: Hoare quadruple {4610#true} {4610#true} #55#return; {4610#true} is VALID [2020-07-17 22:20:25,692 INFO L280 TraceCheckUtils]: 39: Hoare triple {4610#true} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647;#res := #t~ret2 + #t~ret3;havoc #t~ret3;havoc #t~ret2; {4610#true} is VALID [2020-07-17 22:20:25,692 INFO L280 TraceCheckUtils]: 40: Hoare triple {4610#true} assume true; {4610#true} is VALID [2020-07-17 22:20:25,695 INFO L275 TraceCheckUtils]: 41: Hoare quadruple {4610#true} {4798#(<= fibo1_~n |fibo1_#in~n|)} #57#return; {4798#(<= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-17 22:20:25,695 INFO L280 TraceCheckUtils]: 42: Hoare triple {4798#(<= fibo1_~n |fibo1_#in~n|)} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {4798#(<= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-17 22:20:25,695 INFO L263 TraceCheckUtils]: 43: Hoare triple {4798#(<= fibo1_~n |fibo1_#in~n|)} call #t~ret1 := fibo2(~n - 2); {4610#true} is VALID [2020-07-17 22:20:25,696 INFO L280 TraceCheckUtils]: 44: Hoare triple {4610#true} ~n := #in~n; {4913#(<= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-17 22:20:25,696 INFO L280 TraceCheckUtils]: 45: Hoare triple {4913#(<= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {4913#(<= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-17 22:20:25,697 INFO L280 TraceCheckUtils]: 46: Hoare triple {4913#(<= fibo2_~n |fibo2_#in~n|)} assume !(1 == ~n); {4913#(<= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-17 22:20:25,697 INFO L263 TraceCheckUtils]: 47: Hoare triple {4913#(<= fibo2_~n |fibo2_#in~n|)} call #t~ret2 := fibo1(~n - 1); {4610#true} is VALID [2020-07-17 22:20:25,697 INFO L280 TraceCheckUtils]: 48: Hoare triple {4610#true} ~n := #in~n; {4610#true} is VALID [2020-07-17 22:20:25,697 INFO L280 TraceCheckUtils]: 49: Hoare triple {4610#true} assume !(~n < 1); {4610#true} is VALID [2020-07-17 22:20:25,698 INFO L280 TraceCheckUtils]: 50: Hoare triple {4610#true} assume 1 == ~n;#res := 1; {4610#true} is VALID [2020-07-17 22:20:25,698 INFO L280 TraceCheckUtils]: 51: Hoare triple {4610#true} assume true; {4610#true} is VALID [2020-07-17 22:20:25,698 INFO L275 TraceCheckUtils]: 52: Hoare quadruple {4610#true} {4913#(<= fibo2_~n |fibo2_#in~n|)} #53#return; {4913#(<= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-17 22:20:25,699 INFO L280 TraceCheckUtils]: 53: Hoare triple {4913#(<= fibo2_~n |fibo2_#in~n|)} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {4913#(<= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-17 22:20:25,699 INFO L263 TraceCheckUtils]: 54: Hoare triple {4913#(<= fibo2_~n |fibo2_#in~n|)} call #t~ret3 := fibo1(~n - 2); {4610#true} is VALID [2020-07-17 22:20:25,699 INFO L280 TraceCheckUtils]: 55: Hoare triple {4610#true} ~n := #in~n; {4798#(<= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-17 22:20:25,700 INFO L280 TraceCheckUtils]: 56: Hoare triple {4798#(<= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {4776#(<= 1 |fibo1_#in~n|)} is VALID [2020-07-17 22:20:25,701 INFO L280 TraceCheckUtils]: 57: Hoare triple {4776#(<= 1 |fibo1_#in~n|)} assume 1 == ~n;#res := 1; {4776#(<= 1 |fibo1_#in~n|)} is VALID [2020-07-17 22:20:25,701 INFO L280 TraceCheckUtils]: 58: Hoare triple {4776#(<= 1 |fibo1_#in~n|)} assume true; {4776#(<= 1 |fibo1_#in~n|)} is VALID [2020-07-17 22:20:25,702 INFO L275 TraceCheckUtils]: 59: Hoare quadruple {4776#(<= 1 |fibo1_#in~n|)} {4913#(<= fibo2_~n |fibo2_#in~n|)} #55#return; {4959#(<= 3 |fibo2_#in~n|)} is VALID [2020-07-17 22:20:25,703 INFO L280 TraceCheckUtils]: 60: Hoare triple {4959#(<= 3 |fibo2_#in~n|)} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647;#res := #t~ret2 + #t~ret3;havoc #t~ret3;havoc #t~ret2; {4959#(<= 3 |fibo2_#in~n|)} is VALID [2020-07-17 22:20:25,703 INFO L280 TraceCheckUtils]: 61: Hoare triple {4959#(<= 3 |fibo2_#in~n|)} assume true; {4959#(<= 3 |fibo2_#in~n|)} is VALID [2020-07-17 22:20:25,704 INFO L275 TraceCheckUtils]: 62: Hoare quadruple {4959#(<= 3 |fibo2_#in~n|)} {4798#(<= fibo1_~n |fibo1_#in~n|)} #59#return; {4969#(<= 5 |fibo1_#in~n|)} is VALID [2020-07-17 22:20:25,705 INFO L280 TraceCheckUtils]: 63: Hoare triple {4969#(<= 5 |fibo1_#in~n|)} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647;#res := #t~ret0 + #t~ret1;havoc #t~ret1;havoc #t~ret0; {4969#(<= 5 |fibo1_#in~n|)} is VALID [2020-07-17 22:20:25,705 INFO L280 TraceCheckUtils]: 64: Hoare triple {4969#(<= 5 |fibo1_#in~n|)} assume true; {4969#(<= 5 |fibo1_#in~n|)} is VALID [2020-07-17 22:20:25,707 INFO L275 TraceCheckUtils]: 65: Hoare quadruple {4969#(<= 5 |fibo1_#in~n|)} {4614#(<= main_~x~0 4)} #51#return; {4611#false} is VALID [2020-07-17 22:20:25,707 INFO L280 TraceCheckUtils]: 66: Hoare triple {4611#false} assume -2147483648 <= #t~ret4 && #t~ret4 <= 2147483647;~result~0 := #t~ret4;havoc #t~ret4; {4611#false} is VALID [2020-07-17 22:20:25,707 INFO L280 TraceCheckUtils]: 67: Hoare triple {4611#false} assume 3 != ~result~0; {4611#false} is VALID [2020-07-17 22:20:25,707 INFO L280 TraceCheckUtils]: 68: Hoare triple {4611#false} assume !false; {4611#false} is VALID [2020-07-17 22:20:25,711 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 38 proven. 8 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2020-07-17 22:20:25,712 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-17 22:20:25,712 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8] total 16 [2020-07-17 22:20:25,712 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042827967] [2020-07-17 22:20:25,713 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 69 [2020-07-17 22:20:25,715 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-17 22:20:25,715 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 16 states. [2020-07-17 22:20:25,841 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 94 edges. 94 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:20:25,841 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-07-17 22:20:25,842 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 22:20:25,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-07-17 22:20:25,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2020-07-17 22:20:25,843 INFO L87 Difference]: Start difference. First operand 83 states and 126 transitions. Second operand 16 states. [2020-07-17 22:20:27,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:20:27,844 INFO L93 Difference]: Finished difference Result 174 states and 293 transitions. [2020-07-17 22:20:27,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-07-17 22:20:27,844 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 69 [2020-07-17 22:20:27,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 22:20:27,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-07-17 22:20:27,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 147 transitions. [2020-07-17 22:20:27,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-07-17 22:20:27,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 147 transitions. [2020-07-17 22:20:27,867 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 22 states and 147 transitions. [2020-07-17 22:20:28,055 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 147 edges. 147 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:20:28,061 INFO L225 Difference]: With dead ends: 174 [2020-07-17 22:20:28,061 INFO L226 Difference]: Without dead ends: 89 [2020-07-17 22:20:28,063 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=124, Invalid=632, Unknown=0, NotChecked=0, Total=756 [2020-07-17 22:20:28,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2020-07-17 22:20:28,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 80. [2020-07-17 22:20:28,122 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-17 22:20:28,123 INFO L82 GeneralOperation]: Start isEquivalent. First operand 89 states. Second operand 80 states. [2020-07-17 22:20:28,123 INFO L74 IsIncluded]: Start isIncluded. First operand 89 states. Second operand 80 states. [2020-07-17 22:20:28,123 INFO L87 Difference]: Start difference. First operand 89 states. Second operand 80 states. [2020-07-17 22:20:28,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:20:28,128 INFO L93 Difference]: Finished difference Result 89 states and 121 transitions. [2020-07-17 22:20:28,128 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 121 transitions. [2020-07-17 22:20:28,129 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:20:28,129 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:20:28,130 INFO L74 IsIncluded]: Start isIncluded. First operand 80 states. Second operand 89 states. [2020-07-17 22:20:28,130 INFO L87 Difference]: Start difference. First operand 80 states. Second operand 89 states. [2020-07-17 22:20:28,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:20:28,134 INFO L93 Difference]: Finished difference Result 89 states and 121 transitions. [2020-07-17 22:20:28,134 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 121 transitions. [2020-07-17 22:20:28,135 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:20:28,135 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:20:28,135 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-17 22:20:28,135 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-17 22:20:28,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-07-17 22:20:28,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 107 transitions. [2020-07-17 22:20:28,139 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 107 transitions. Word has length 69 [2020-07-17 22:20:28,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 22:20:28,139 INFO L479 AbstractCegarLoop]: Abstraction has 80 states and 107 transitions. [2020-07-17 22:20:28,139 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-07-17 22:20:28,139 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 107 transitions. [2020-07-17 22:20:28,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-07-17 22:20:28,141 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 22:20:28,141 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 22:20:28,355 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 22:20:28,355 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 22:20:28,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 22:20:28,356 INFO L82 PathProgramCache]: Analyzing trace with hash -1156896337, now seen corresponding path program 1 times [2020-07-17 22:20:28,357 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 22:20:28,357 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036796559] [2020-07-17 22:20:28,357 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 22:20:28,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:20:28,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:20:28,435 INFO L280 TraceCheckUtils]: 0: Hoare triple {5520#true} assume true; {5520#true} is VALID [2020-07-17 22:20:28,436 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {5520#true} {5520#true} #47#return; {5520#true} is VALID [2020-07-17 22:20:28,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:20:28,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:20:28,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:20:28,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:20:28,798 INFO L280 TraceCheckUtils]: 0: Hoare triple {5520#true} ~n := #in~n; {5520#true} is VALID [2020-07-17 22:20:28,798 INFO L280 TraceCheckUtils]: 1: Hoare triple {5520#true} assume !(~n < 1); {5520#true} is VALID [2020-07-17 22:20:28,799 INFO L280 TraceCheckUtils]: 2: Hoare triple {5520#true} assume 1 == ~n;#res := 1; {5676#(and (<= 1 |fibo2_#res|) (<= |fibo2_#res| 1))} is VALID [2020-07-17 22:20:28,801 INFO L280 TraceCheckUtils]: 3: Hoare triple {5676#(and (<= 1 |fibo2_#res|) (<= |fibo2_#res| 1))} assume true; {5676#(and (<= 1 |fibo2_#res|) (<= |fibo2_#res| 1))} is VALID [2020-07-17 22:20:28,802 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {5676#(and (<= 1 |fibo2_#res|) (<= |fibo2_#res| 1))} {5520#true} #57#return; {5669#(and (<= 1 |fibo1_#t~ret0|) (<= |fibo1_#t~ret0| 1))} is VALID [2020-07-17 22:20:28,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:20:28,862 INFO L280 TraceCheckUtils]: 0: Hoare triple {5520#true} ~n := #in~n; {5520#true} is VALID [2020-07-17 22:20:28,863 INFO L280 TraceCheckUtils]: 1: Hoare triple {5520#true} assume ~n < 1;#res := 0; {5677#(and (<= |fibo2_#res| 0) (<= 0 |fibo2_#res|))} is VALID [2020-07-17 22:20:28,864 INFO L280 TraceCheckUtils]: 2: Hoare triple {5677#(and (<= |fibo2_#res| 0) (<= 0 |fibo2_#res|))} assume true; {5677#(and (<= |fibo2_#res| 0) (<= 0 |fibo2_#res|))} is VALID [2020-07-17 22:20:28,866 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {5677#(and (<= |fibo2_#res| 0) (<= 0 |fibo2_#res|))} {5669#(and (<= 1 |fibo1_#t~ret0|) (<= |fibo1_#t~ret0| 1))} #59#return; {5674#(and (<= 1 (+ |fibo1_#t~ret1| |fibo1_#t~ret0|)) (<= (+ |fibo1_#t~ret1| |fibo1_#t~ret0|) 1))} is VALID [2020-07-17 22:20:28,866 INFO L280 TraceCheckUtils]: 0: Hoare triple {5520#true} ~n := #in~n; {5520#true} is VALID [2020-07-17 22:20:28,866 INFO L280 TraceCheckUtils]: 1: Hoare triple {5520#true} assume !(~n < 1); {5520#true} is VALID [2020-07-17 22:20:28,866 INFO L280 TraceCheckUtils]: 2: Hoare triple {5520#true} assume !(1 == ~n); {5520#true} is VALID [2020-07-17 22:20:28,867 INFO L263 TraceCheckUtils]: 3: Hoare triple {5520#true} call #t~ret0 := fibo2(~n - 1); {5520#true} is VALID [2020-07-17 22:20:28,867 INFO L280 TraceCheckUtils]: 4: Hoare triple {5520#true} ~n := #in~n; {5520#true} is VALID [2020-07-17 22:20:28,867 INFO L280 TraceCheckUtils]: 5: Hoare triple {5520#true} assume !(~n < 1); {5520#true} is VALID [2020-07-17 22:20:28,869 INFO L280 TraceCheckUtils]: 6: Hoare triple {5520#true} assume 1 == ~n;#res := 1; {5676#(and (<= 1 |fibo2_#res|) (<= |fibo2_#res| 1))} is VALID [2020-07-17 22:20:28,870 INFO L280 TraceCheckUtils]: 7: Hoare triple {5676#(and (<= 1 |fibo2_#res|) (<= |fibo2_#res| 1))} assume true; {5676#(and (<= 1 |fibo2_#res|) (<= |fibo2_#res| 1))} is VALID [2020-07-17 22:20:28,872 INFO L275 TraceCheckUtils]: 8: Hoare quadruple {5676#(and (<= 1 |fibo2_#res|) (<= |fibo2_#res| 1))} {5520#true} #57#return; {5669#(and (<= 1 |fibo1_#t~ret0|) (<= |fibo1_#t~ret0| 1))} is VALID [2020-07-17 22:20:28,874 INFO L280 TraceCheckUtils]: 9: Hoare triple {5669#(and (<= 1 |fibo1_#t~ret0|) (<= |fibo1_#t~ret0| 1))} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {5669#(and (<= 1 |fibo1_#t~ret0|) (<= |fibo1_#t~ret0| 1))} is VALID [2020-07-17 22:20:28,874 INFO L263 TraceCheckUtils]: 10: Hoare triple {5669#(and (<= 1 |fibo1_#t~ret0|) (<= |fibo1_#t~ret0| 1))} call #t~ret1 := fibo2(~n - 2); {5520#true} is VALID [2020-07-17 22:20:28,874 INFO L280 TraceCheckUtils]: 11: Hoare triple {5520#true} ~n := #in~n; {5520#true} is VALID [2020-07-17 22:20:28,875 INFO L280 TraceCheckUtils]: 12: Hoare triple {5520#true} assume ~n < 1;#res := 0; {5677#(and (<= |fibo2_#res| 0) (<= 0 |fibo2_#res|))} is VALID [2020-07-17 22:20:28,877 INFO L280 TraceCheckUtils]: 13: Hoare triple {5677#(and (<= |fibo2_#res| 0) (<= 0 |fibo2_#res|))} assume true; {5677#(and (<= |fibo2_#res| 0) (<= 0 |fibo2_#res|))} is VALID [2020-07-17 22:20:28,879 INFO L275 TraceCheckUtils]: 14: Hoare quadruple {5677#(and (<= |fibo2_#res| 0) (<= 0 |fibo2_#res|))} {5669#(and (<= 1 |fibo1_#t~ret0|) (<= |fibo1_#t~ret0| 1))} #59#return; {5674#(and (<= 1 (+ |fibo1_#t~ret1| |fibo1_#t~ret0|)) (<= (+ |fibo1_#t~ret1| |fibo1_#t~ret0|) 1))} is VALID [2020-07-17 22:20:28,880 INFO L280 TraceCheckUtils]: 15: Hoare triple {5674#(and (<= 1 (+ |fibo1_#t~ret1| |fibo1_#t~ret0|)) (<= (+ |fibo1_#t~ret1| |fibo1_#t~ret0|) 1))} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647;#res := #t~ret0 + #t~ret1;havoc #t~ret1;havoc #t~ret0; {5675#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} is VALID [2020-07-17 22:20:28,882 INFO L280 TraceCheckUtils]: 16: Hoare triple {5675#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} assume true; {5675#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} is VALID [2020-07-17 22:20:28,883 INFO L275 TraceCheckUtils]: 17: Hoare quadruple {5675#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} {5520#true} #53#return; {5656#(and (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|))} is VALID [2020-07-17 22:20:28,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:20:28,898 INFO L280 TraceCheckUtils]: 0: Hoare triple {5520#true} ~n := #in~n; {5520#true} is VALID [2020-07-17 22:20:28,898 INFO L280 TraceCheckUtils]: 1: Hoare triple {5520#true} assume !(~n < 1); {5520#true} is VALID [2020-07-17 22:20:28,899 INFO L280 TraceCheckUtils]: 2: Hoare triple {5520#true} assume 1 == ~n;#res := 1; {5675#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} is VALID [2020-07-17 22:20:28,900 INFO L280 TraceCheckUtils]: 3: Hoare triple {5675#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} assume true; {5675#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} is VALID [2020-07-17 22:20:28,902 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {5675#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} {5656#(and (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|))} #55#return; {5662#(and (<= 2 (+ |fibo2_#t~ret3| |fibo2_#t~ret2|)) (<= (+ |fibo2_#t~ret3| |fibo2_#t~ret2|) 2))} is VALID [2020-07-17 22:20:28,903 INFO L280 TraceCheckUtils]: 0: Hoare triple {5520#true} ~n := #in~n; {5520#true} is VALID [2020-07-17 22:20:28,903 INFO L280 TraceCheckUtils]: 1: Hoare triple {5520#true} assume !(~n < 1); {5520#true} is VALID [2020-07-17 22:20:28,904 INFO L280 TraceCheckUtils]: 2: Hoare triple {5520#true} assume !(1 == ~n); {5520#true} is VALID [2020-07-17 22:20:28,904 INFO L263 TraceCheckUtils]: 3: Hoare triple {5520#true} call #t~ret2 := fibo1(~n - 1); {5520#true} is VALID [2020-07-17 22:20:28,904 INFO L280 TraceCheckUtils]: 4: Hoare triple {5520#true} ~n := #in~n; {5520#true} is VALID [2020-07-17 22:20:28,905 INFO L280 TraceCheckUtils]: 5: Hoare triple {5520#true} assume !(~n < 1); {5520#true} is VALID [2020-07-17 22:20:28,905 INFO L280 TraceCheckUtils]: 6: Hoare triple {5520#true} assume !(1 == ~n); {5520#true} is VALID [2020-07-17 22:20:28,905 INFO L263 TraceCheckUtils]: 7: Hoare triple {5520#true} call #t~ret0 := fibo2(~n - 1); {5520#true} is VALID [2020-07-17 22:20:28,906 INFO L280 TraceCheckUtils]: 8: Hoare triple {5520#true} ~n := #in~n; {5520#true} is VALID [2020-07-17 22:20:28,906 INFO L280 TraceCheckUtils]: 9: Hoare triple {5520#true} assume !(~n < 1); {5520#true} is VALID [2020-07-17 22:20:28,908 INFO L280 TraceCheckUtils]: 10: Hoare triple {5520#true} assume 1 == ~n;#res := 1; {5676#(and (<= 1 |fibo2_#res|) (<= |fibo2_#res| 1))} is VALID [2020-07-17 22:20:28,909 INFO L280 TraceCheckUtils]: 11: Hoare triple {5676#(and (<= 1 |fibo2_#res|) (<= |fibo2_#res| 1))} assume true; {5676#(and (<= 1 |fibo2_#res|) (<= |fibo2_#res| 1))} is VALID [2020-07-17 22:20:28,910 INFO L275 TraceCheckUtils]: 12: Hoare quadruple {5676#(and (<= 1 |fibo2_#res|) (<= |fibo2_#res| 1))} {5520#true} #57#return; {5669#(and (<= 1 |fibo1_#t~ret0|) (<= |fibo1_#t~ret0| 1))} is VALID [2020-07-17 22:20:28,912 INFO L280 TraceCheckUtils]: 13: Hoare triple {5669#(and (<= 1 |fibo1_#t~ret0|) (<= |fibo1_#t~ret0| 1))} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {5669#(and (<= 1 |fibo1_#t~ret0|) (<= |fibo1_#t~ret0| 1))} is VALID [2020-07-17 22:20:28,912 INFO L263 TraceCheckUtils]: 14: Hoare triple {5669#(and (<= 1 |fibo1_#t~ret0|) (<= |fibo1_#t~ret0| 1))} call #t~ret1 := fibo2(~n - 2); {5520#true} is VALID [2020-07-17 22:20:28,913 INFO L280 TraceCheckUtils]: 15: Hoare triple {5520#true} ~n := #in~n; {5520#true} is VALID [2020-07-17 22:20:28,914 INFO L280 TraceCheckUtils]: 16: Hoare triple {5520#true} assume ~n < 1;#res := 0; {5677#(and (<= |fibo2_#res| 0) (<= 0 |fibo2_#res|))} is VALID [2020-07-17 22:20:28,915 INFO L280 TraceCheckUtils]: 17: Hoare triple {5677#(and (<= |fibo2_#res| 0) (<= 0 |fibo2_#res|))} assume true; {5677#(and (<= |fibo2_#res| 0) (<= 0 |fibo2_#res|))} is VALID [2020-07-17 22:20:28,918 INFO L275 TraceCheckUtils]: 18: Hoare quadruple {5677#(and (<= |fibo2_#res| 0) (<= 0 |fibo2_#res|))} {5669#(and (<= 1 |fibo1_#t~ret0|) (<= |fibo1_#t~ret0| 1))} #59#return; {5674#(and (<= 1 (+ |fibo1_#t~ret1| |fibo1_#t~ret0|)) (<= (+ |fibo1_#t~ret1| |fibo1_#t~ret0|) 1))} is VALID [2020-07-17 22:20:28,919 INFO L280 TraceCheckUtils]: 19: Hoare triple {5674#(and (<= 1 (+ |fibo1_#t~ret1| |fibo1_#t~ret0|)) (<= (+ |fibo1_#t~ret1| |fibo1_#t~ret0|) 1))} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647;#res := #t~ret0 + #t~ret1;havoc #t~ret1;havoc #t~ret0; {5675#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} is VALID [2020-07-17 22:20:28,920 INFO L280 TraceCheckUtils]: 20: Hoare triple {5675#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} assume true; {5675#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} is VALID [2020-07-17 22:20:28,921 INFO L275 TraceCheckUtils]: 21: Hoare quadruple {5675#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} {5520#true} #53#return; {5656#(and (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|))} is VALID [2020-07-17 22:20:28,923 INFO L280 TraceCheckUtils]: 22: Hoare triple {5656#(and (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|))} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {5656#(and (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|))} is VALID [2020-07-17 22:20:28,923 INFO L263 TraceCheckUtils]: 23: Hoare triple {5656#(and (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|))} call #t~ret3 := fibo1(~n - 2); {5520#true} is VALID [2020-07-17 22:20:28,923 INFO L280 TraceCheckUtils]: 24: Hoare triple {5520#true} ~n := #in~n; {5520#true} is VALID [2020-07-17 22:20:28,924 INFO L280 TraceCheckUtils]: 25: Hoare triple {5520#true} assume !(~n < 1); {5520#true} is VALID [2020-07-17 22:20:28,925 INFO L280 TraceCheckUtils]: 26: Hoare triple {5520#true} assume 1 == ~n;#res := 1; {5675#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} is VALID [2020-07-17 22:20:28,926 INFO L280 TraceCheckUtils]: 27: Hoare triple {5675#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} assume true; {5675#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} is VALID [2020-07-17 22:20:28,928 INFO L275 TraceCheckUtils]: 28: Hoare quadruple {5675#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} {5656#(and (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|))} #55#return; {5662#(and (<= 2 (+ |fibo2_#t~ret3| |fibo2_#t~ret2|)) (<= (+ |fibo2_#t~ret3| |fibo2_#t~ret2|) 2))} is VALID [2020-07-17 22:20:28,929 INFO L280 TraceCheckUtils]: 29: Hoare triple {5662#(and (<= 2 (+ |fibo2_#t~ret3| |fibo2_#t~ret2|)) (<= (+ |fibo2_#t~ret3| |fibo2_#t~ret2|) 2))} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647;#res := #t~ret2 + #t~ret3;havoc #t~ret3;havoc #t~ret2; {5663#(and (<= |fibo2_#res| 2) (<= 2 |fibo2_#res|))} is VALID [2020-07-17 22:20:28,930 INFO L280 TraceCheckUtils]: 30: Hoare triple {5663#(and (<= |fibo2_#res| 2) (<= 2 |fibo2_#res|))} assume true; {5663#(and (<= |fibo2_#res| 2) (<= 2 |fibo2_#res|))} is VALID [2020-07-17 22:20:28,931 INFO L275 TraceCheckUtils]: 31: Hoare quadruple {5663#(and (<= |fibo2_#res| 2) (<= 2 |fibo2_#res|))} {5520#true} #57#return; {5617#(and (<= |fibo1_#t~ret0| 2) (<= 2 |fibo1_#t~ret0|))} is VALID [2020-07-17 22:20:28,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:20:29,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:20:29,013 INFO L280 TraceCheckUtils]: 0: Hoare triple {5520#true} ~n := #in~n; {5520#true} is VALID [2020-07-17 22:20:29,014 INFO L280 TraceCheckUtils]: 1: Hoare triple {5520#true} assume !(~n < 1); {5520#true} is VALID [2020-07-17 22:20:29,015 INFO L280 TraceCheckUtils]: 2: Hoare triple {5520#true} assume 1 == ~n;#res := 1; {5675#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} is VALID [2020-07-17 22:20:29,016 INFO L280 TraceCheckUtils]: 3: Hoare triple {5675#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} assume true; {5675#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} is VALID [2020-07-17 22:20:29,017 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {5675#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} {5520#true} #53#return; {5656#(and (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|))} is VALID [2020-07-17 22:20:29,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:20:29,058 INFO L280 TraceCheckUtils]: 0: Hoare triple {5520#true} ~n := #in~n; {5520#true} is VALID [2020-07-17 22:20:29,059 INFO L280 TraceCheckUtils]: 1: Hoare triple {5520#true} assume ~n < 1;#res := 0; {5688#(and (<= |fibo1_#res| 0) (<= 0 |fibo1_#res|))} is VALID [2020-07-17 22:20:29,060 INFO L280 TraceCheckUtils]: 2: Hoare triple {5688#(and (<= |fibo1_#res| 0) (<= 0 |fibo1_#res|))} assume true; {5688#(and (<= |fibo1_#res| 0) (<= 0 |fibo1_#res|))} is VALID [2020-07-17 22:20:29,062 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {5688#(and (<= |fibo1_#res| 0) (<= 0 |fibo1_#res|))} {5656#(and (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|))} #55#return; {5687#(and (<= 1 (+ |fibo2_#t~ret3| |fibo2_#t~ret2|)) (<= (+ |fibo2_#t~ret3| |fibo2_#t~ret2|) 1))} is VALID [2020-07-17 22:20:29,062 INFO L280 TraceCheckUtils]: 0: Hoare triple {5520#true} ~n := #in~n; {5520#true} is VALID [2020-07-17 22:20:29,062 INFO L280 TraceCheckUtils]: 1: Hoare triple {5520#true} assume !(~n < 1); {5520#true} is VALID [2020-07-17 22:20:29,063 INFO L280 TraceCheckUtils]: 2: Hoare triple {5520#true} assume !(1 == ~n); {5520#true} is VALID [2020-07-17 22:20:29,063 INFO L263 TraceCheckUtils]: 3: Hoare triple {5520#true} call #t~ret2 := fibo1(~n - 1); {5520#true} is VALID [2020-07-17 22:20:29,063 INFO L280 TraceCheckUtils]: 4: Hoare triple {5520#true} ~n := #in~n; {5520#true} is VALID [2020-07-17 22:20:29,064 INFO L280 TraceCheckUtils]: 5: Hoare triple {5520#true} assume !(~n < 1); {5520#true} is VALID [2020-07-17 22:20:29,065 INFO L280 TraceCheckUtils]: 6: Hoare triple {5520#true} assume 1 == ~n;#res := 1; {5675#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} is VALID [2020-07-17 22:20:29,066 INFO L280 TraceCheckUtils]: 7: Hoare triple {5675#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} assume true; {5675#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} is VALID [2020-07-17 22:20:29,068 INFO L275 TraceCheckUtils]: 8: Hoare quadruple {5675#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} {5520#true} #53#return; {5656#(and (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|))} is VALID [2020-07-17 22:20:29,069 INFO L280 TraceCheckUtils]: 9: Hoare triple {5656#(and (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|))} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {5656#(and (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|))} is VALID [2020-07-17 22:20:29,069 INFO L263 TraceCheckUtils]: 10: Hoare triple {5656#(and (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|))} call #t~ret3 := fibo1(~n - 2); {5520#true} is VALID [2020-07-17 22:20:29,069 INFO L280 TraceCheckUtils]: 11: Hoare triple {5520#true} ~n := #in~n; {5520#true} is VALID [2020-07-17 22:20:29,070 INFO L280 TraceCheckUtils]: 12: Hoare triple {5520#true} assume ~n < 1;#res := 0; {5688#(and (<= |fibo1_#res| 0) (<= 0 |fibo1_#res|))} is VALID [2020-07-17 22:20:29,071 INFO L280 TraceCheckUtils]: 13: Hoare triple {5688#(and (<= |fibo1_#res| 0) (<= 0 |fibo1_#res|))} assume true; {5688#(and (<= |fibo1_#res| 0) (<= 0 |fibo1_#res|))} is VALID [2020-07-17 22:20:29,073 INFO L275 TraceCheckUtils]: 14: Hoare quadruple {5688#(and (<= |fibo1_#res| 0) (<= 0 |fibo1_#res|))} {5656#(and (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|))} #55#return; {5687#(and (<= 1 (+ |fibo2_#t~ret3| |fibo2_#t~ret2|)) (<= (+ |fibo2_#t~ret3| |fibo2_#t~ret2|) 1))} is VALID [2020-07-17 22:20:29,074 INFO L280 TraceCheckUtils]: 15: Hoare triple {5687#(and (<= 1 (+ |fibo2_#t~ret3| |fibo2_#t~ret2|)) (<= (+ |fibo2_#t~ret3| |fibo2_#t~ret2|) 1))} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647;#res := #t~ret2 + #t~ret3;havoc #t~ret3;havoc #t~ret2; {5676#(and (<= 1 |fibo2_#res|) (<= |fibo2_#res| 1))} is VALID [2020-07-17 22:20:29,075 INFO L280 TraceCheckUtils]: 16: Hoare triple {5676#(and (<= 1 |fibo2_#res|) (<= |fibo2_#res| 1))} assume true; {5676#(and (<= 1 |fibo2_#res|) (<= |fibo2_#res| 1))} is VALID [2020-07-17 22:20:29,077 INFO L275 TraceCheckUtils]: 17: Hoare quadruple {5676#(and (<= 1 |fibo2_#res|) (<= |fibo2_#res| 1))} {5617#(and (<= |fibo1_#t~ret0| 2) (<= 2 |fibo1_#t~ret0|))} #59#return; {5636#(and (<= (+ |fibo1_#t~ret1| |fibo1_#t~ret0|) 3) (<= 3 (+ |fibo1_#t~ret1| |fibo1_#t~ret0|)))} is VALID [2020-07-17 22:20:29,078 INFO L280 TraceCheckUtils]: 0: Hoare triple {5520#true} ~n := #in~n; {5520#true} is VALID [2020-07-17 22:20:29,078 INFO L280 TraceCheckUtils]: 1: Hoare triple {5520#true} assume !(~n < 1); {5520#true} is VALID [2020-07-17 22:20:29,078 INFO L280 TraceCheckUtils]: 2: Hoare triple {5520#true} assume !(1 == ~n); {5520#true} is VALID [2020-07-17 22:20:29,078 INFO L263 TraceCheckUtils]: 3: Hoare triple {5520#true} call #t~ret0 := fibo2(~n - 1); {5520#true} is VALID [2020-07-17 22:20:29,079 INFO L280 TraceCheckUtils]: 4: Hoare triple {5520#true} ~n := #in~n; {5520#true} is VALID [2020-07-17 22:20:29,079 INFO L280 TraceCheckUtils]: 5: Hoare triple {5520#true} assume !(~n < 1); {5520#true} is VALID [2020-07-17 22:20:29,079 INFO L280 TraceCheckUtils]: 6: Hoare triple {5520#true} assume !(1 == ~n); {5520#true} is VALID [2020-07-17 22:20:29,080 INFO L263 TraceCheckUtils]: 7: Hoare triple {5520#true} call #t~ret2 := fibo1(~n - 1); {5520#true} is VALID [2020-07-17 22:20:29,080 INFO L280 TraceCheckUtils]: 8: Hoare triple {5520#true} ~n := #in~n; {5520#true} is VALID [2020-07-17 22:20:29,080 INFO L280 TraceCheckUtils]: 9: Hoare triple {5520#true} assume !(~n < 1); {5520#true} is VALID [2020-07-17 22:20:29,080 INFO L280 TraceCheckUtils]: 10: Hoare triple {5520#true} assume !(1 == ~n); {5520#true} is VALID [2020-07-17 22:20:29,081 INFO L263 TraceCheckUtils]: 11: Hoare triple {5520#true} call #t~ret0 := fibo2(~n - 1); {5520#true} is VALID [2020-07-17 22:20:29,081 INFO L280 TraceCheckUtils]: 12: Hoare triple {5520#true} ~n := #in~n; {5520#true} is VALID [2020-07-17 22:20:29,081 INFO L280 TraceCheckUtils]: 13: Hoare triple {5520#true} assume !(~n < 1); {5520#true} is VALID [2020-07-17 22:20:29,083 INFO L280 TraceCheckUtils]: 14: Hoare triple {5520#true} assume 1 == ~n;#res := 1; {5676#(and (<= 1 |fibo2_#res|) (<= |fibo2_#res| 1))} is VALID [2020-07-17 22:20:29,084 INFO L280 TraceCheckUtils]: 15: Hoare triple {5676#(and (<= 1 |fibo2_#res|) (<= |fibo2_#res| 1))} assume true; {5676#(and (<= 1 |fibo2_#res|) (<= |fibo2_#res| 1))} is VALID [2020-07-17 22:20:29,085 INFO L275 TraceCheckUtils]: 16: Hoare quadruple {5676#(and (<= 1 |fibo2_#res|) (<= |fibo2_#res| 1))} {5520#true} #57#return; {5669#(and (<= 1 |fibo1_#t~ret0|) (<= |fibo1_#t~ret0| 1))} is VALID [2020-07-17 22:20:29,086 INFO L280 TraceCheckUtils]: 17: Hoare triple {5669#(and (<= 1 |fibo1_#t~ret0|) (<= |fibo1_#t~ret0| 1))} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {5669#(and (<= 1 |fibo1_#t~ret0|) (<= |fibo1_#t~ret0| 1))} is VALID [2020-07-17 22:20:29,086 INFO L263 TraceCheckUtils]: 18: Hoare triple {5669#(and (<= 1 |fibo1_#t~ret0|) (<= |fibo1_#t~ret0| 1))} call #t~ret1 := fibo2(~n - 2); {5520#true} is VALID [2020-07-17 22:20:29,086 INFO L280 TraceCheckUtils]: 19: Hoare triple {5520#true} ~n := #in~n; {5520#true} is VALID [2020-07-17 22:20:29,087 INFO L280 TraceCheckUtils]: 20: Hoare triple {5520#true} assume ~n < 1;#res := 0; {5677#(and (<= |fibo2_#res| 0) (<= 0 |fibo2_#res|))} is VALID [2020-07-17 22:20:29,088 INFO L280 TraceCheckUtils]: 21: Hoare triple {5677#(and (<= |fibo2_#res| 0) (<= 0 |fibo2_#res|))} assume true; {5677#(and (<= |fibo2_#res| 0) (<= 0 |fibo2_#res|))} is VALID [2020-07-17 22:20:29,090 INFO L275 TraceCheckUtils]: 22: Hoare quadruple {5677#(and (<= |fibo2_#res| 0) (<= 0 |fibo2_#res|))} {5669#(and (<= 1 |fibo1_#t~ret0|) (<= |fibo1_#t~ret0| 1))} #59#return; {5674#(and (<= 1 (+ |fibo1_#t~ret1| |fibo1_#t~ret0|)) (<= (+ |fibo1_#t~ret1| |fibo1_#t~ret0|) 1))} is VALID [2020-07-17 22:20:29,091 INFO L280 TraceCheckUtils]: 23: Hoare triple {5674#(and (<= 1 (+ |fibo1_#t~ret1| |fibo1_#t~ret0|)) (<= (+ |fibo1_#t~ret1| |fibo1_#t~ret0|) 1))} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647;#res := #t~ret0 + #t~ret1;havoc #t~ret1;havoc #t~ret0; {5675#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} is VALID [2020-07-17 22:20:29,092 INFO L280 TraceCheckUtils]: 24: Hoare triple {5675#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} assume true; {5675#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} is VALID [2020-07-17 22:20:29,093 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {5675#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} {5520#true} #53#return; {5656#(and (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|))} is VALID [2020-07-17 22:20:29,094 INFO L280 TraceCheckUtils]: 26: Hoare triple {5656#(and (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|))} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {5656#(and (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|))} is VALID [2020-07-17 22:20:29,094 INFO L263 TraceCheckUtils]: 27: Hoare triple {5656#(and (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|))} call #t~ret3 := fibo1(~n - 2); {5520#true} is VALID [2020-07-17 22:20:29,095 INFO L280 TraceCheckUtils]: 28: Hoare triple {5520#true} ~n := #in~n; {5520#true} is VALID [2020-07-17 22:20:29,095 INFO L280 TraceCheckUtils]: 29: Hoare triple {5520#true} assume !(~n < 1); {5520#true} is VALID [2020-07-17 22:20:29,095 INFO L280 TraceCheckUtils]: 30: Hoare triple {5520#true} assume 1 == ~n;#res := 1; {5675#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} is VALID [2020-07-17 22:20:29,096 INFO L280 TraceCheckUtils]: 31: Hoare triple {5675#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} assume true; {5675#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} is VALID [2020-07-17 22:20:29,098 INFO L275 TraceCheckUtils]: 32: Hoare quadruple {5675#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} {5656#(and (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|))} #55#return; {5662#(and (<= 2 (+ |fibo2_#t~ret3| |fibo2_#t~ret2|)) (<= (+ |fibo2_#t~ret3| |fibo2_#t~ret2|) 2))} is VALID [2020-07-17 22:20:29,099 INFO L280 TraceCheckUtils]: 33: Hoare triple {5662#(and (<= 2 (+ |fibo2_#t~ret3| |fibo2_#t~ret2|)) (<= (+ |fibo2_#t~ret3| |fibo2_#t~ret2|) 2))} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647;#res := #t~ret2 + #t~ret3;havoc #t~ret3;havoc #t~ret2; {5663#(and (<= |fibo2_#res| 2) (<= 2 |fibo2_#res|))} is VALID [2020-07-17 22:20:29,099 INFO L280 TraceCheckUtils]: 34: Hoare triple {5663#(and (<= |fibo2_#res| 2) (<= 2 |fibo2_#res|))} assume true; {5663#(and (<= |fibo2_#res| 2) (<= 2 |fibo2_#res|))} is VALID [2020-07-17 22:20:29,100 INFO L275 TraceCheckUtils]: 35: Hoare quadruple {5663#(and (<= |fibo2_#res| 2) (<= 2 |fibo2_#res|))} {5520#true} #57#return; {5617#(and (<= |fibo1_#t~ret0| 2) (<= 2 |fibo1_#t~ret0|))} is VALID [2020-07-17 22:20:29,101 INFO L280 TraceCheckUtils]: 36: Hoare triple {5617#(and (<= |fibo1_#t~ret0| 2) (<= 2 |fibo1_#t~ret0|))} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {5617#(and (<= |fibo1_#t~ret0| 2) (<= 2 |fibo1_#t~ret0|))} is VALID [2020-07-17 22:20:29,101 INFO L263 TraceCheckUtils]: 37: Hoare triple {5617#(and (<= |fibo1_#t~ret0| 2) (<= 2 |fibo1_#t~ret0|))} call #t~ret1 := fibo2(~n - 2); {5520#true} is VALID [2020-07-17 22:20:29,102 INFO L280 TraceCheckUtils]: 38: Hoare triple {5520#true} ~n := #in~n; {5520#true} is VALID [2020-07-17 22:20:29,102 INFO L280 TraceCheckUtils]: 39: Hoare triple {5520#true} assume !(~n < 1); {5520#true} is VALID [2020-07-17 22:20:29,102 INFO L280 TraceCheckUtils]: 40: Hoare triple {5520#true} assume !(1 == ~n); {5520#true} is VALID [2020-07-17 22:20:29,102 INFO L263 TraceCheckUtils]: 41: Hoare triple {5520#true} call #t~ret2 := fibo1(~n - 1); {5520#true} is VALID [2020-07-17 22:20:29,103 INFO L280 TraceCheckUtils]: 42: Hoare triple {5520#true} ~n := #in~n; {5520#true} is VALID [2020-07-17 22:20:29,103 INFO L280 TraceCheckUtils]: 43: Hoare triple {5520#true} assume !(~n < 1); {5520#true} is VALID [2020-07-17 22:20:29,104 INFO L280 TraceCheckUtils]: 44: Hoare triple {5520#true} assume 1 == ~n;#res := 1; {5675#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} is VALID [2020-07-17 22:20:29,104 INFO L280 TraceCheckUtils]: 45: Hoare triple {5675#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} assume true; {5675#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} is VALID [2020-07-17 22:20:29,106 INFO L275 TraceCheckUtils]: 46: Hoare quadruple {5675#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} {5520#true} #53#return; {5656#(and (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|))} is VALID [2020-07-17 22:20:29,106 INFO L280 TraceCheckUtils]: 47: Hoare triple {5656#(and (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|))} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {5656#(and (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|))} is VALID [2020-07-17 22:20:29,107 INFO L263 TraceCheckUtils]: 48: Hoare triple {5656#(and (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|))} call #t~ret3 := fibo1(~n - 2); {5520#true} is VALID [2020-07-17 22:20:29,107 INFO L280 TraceCheckUtils]: 49: Hoare triple {5520#true} ~n := #in~n; {5520#true} is VALID [2020-07-17 22:20:29,107 INFO L280 TraceCheckUtils]: 50: Hoare triple {5520#true} assume ~n < 1;#res := 0; {5688#(and (<= |fibo1_#res| 0) (<= 0 |fibo1_#res|))} is VALID [2020-07-17 22:20:29,108 INFO L280 TraceCheckUtils]: 51: Hoare triple {5688#(and (<= |fibo1_#res| 0) (<= 0 |fibo1_#res|))} assume true; {5688#(and (<= |fibo1_#res| 0) (<= 0 |fibo1_#res|))} is VALID [2020-07-17 22:20:29,110 INFO L275 TraceCheckUtils]: 52: Hoare quadruple {5688#(and (<= |fibo1_#res| 0) (<= 0 |fibo1_#res|))} {5656#(and (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|))} #55#return; {5687#(and (<= 1 (+ |fibo2_#t~ret3| |fibo2_#t~ret2|)) (<= (+ |fibo2_#t~ret3| |fibo2_#t~ret2|) 1))} is VALID [2020-07-17 22:20:29,111 INFO L280 TraceCheckUtils]: 53: Hoare triple {5687#(and (<= 1 (+ |fibo2_#t~ret3| |fibo2_#t~ret2|)) (<= (+ |fibo2_#t~ret3| |fibo2_#t~ret2|) 1))} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647;#res := #t~ret2 + #t~ret3;havoc #t~ret3;havoc #t~ret2; {5676#(and (<= 1 |fibo2_#res|) (<= |fibo2_#res| 1))} is VALID [2020-07-17 22:20:29,112 INFO L280 TraceCheckUtils]: 54: Hoare triple {5676#(and (<= 1 |fibo2_#res|) (<= |fibo2_#res| 1))} assume true; {5676#(and (<= 1 |fibo2_#res|) (<= |fibo2_#res| 1))} is VALID [2020-07-17 22:20:29,113 INFO L275 TraceCheckUtils]: 55: Hoare quadruple {5676#(and (<= 1 |fibo2_#res|) (<= |fibo2_#res| 1))} {5617#(and (<= |fibo1_#t~ret0| 2) (<= 2 |fibo1_#t~ret0|))} #59#return; {5636#(and (<= (+ |fibo1_#t~ret1| |fibo1_#t~ret0|) 3) (<= 3 (+ |fibo1_#t~ret1| |fibo1_#t~ret0|)))} is VALID [2020-07-17 22:20:29,114 INFO L280 TraceCheckUtils]: 56: Hoare triple {5636#(and (<= (+ |fibo1_#t~ret1| |fibo1_#t~ret0|) 3) (<= 3 (+ |fibo1_#t~ret1| |fibo1_#t~ret0|)))} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647;#res := #t~ret0 + #t~ret1;havoc #t~ret1;havoc #t~ret0; {5637#(and (<= 3 |fibo1_#res|) (<= |fibo1_#res| 3))} is VALID [2020-07-17 22:20:29,115 INFO L280 TraceCheckUtils]: 57: Hoare triple {5637#(and (<= 3 |fibo1_#res|) (<= |fibo1_#res| 3))} assume true; {5637#(and (<= 3 |fibo1_#res|) (<= |fibo1_#res| 3))} is VALID [2020-07-17 22:20:29,116 INFO L275 TraceCheckUtils]: 58: Hoare quadruple {5637#(and (<= 3 |fibo1_#res|) (<= |fibo1_#res| 3))} {5520#true} #51#return; {5583#(and (<= 3 |main_#t~ret4|) (<= |main_#t~ret4| 3))} is VALID [2020-07-17 22:20:29,121 INFO L263 TraceCheckUtils]: 0: Hoare triple {5520#true} call ULTIMATE.init(); {5520#true} is VALID [2020-07-17 22:20:29,121 INFO L280 TraceCheckUtils]: 1: Hoare triple {5520#true} assume true; {5520#true} is VALID [2020-07-17 22:20:29,121 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {5520#true} {5520#true} #47#return; {5520#true} is VALID [2020-07-17 22:20:29,122 INFO L263 TraceCheckUtils]: 3: Hoare triple {5520#true} call #t~ret5 := main(); {5520#true} is VALID [2020-07-17 22:20:29,122 INFO L280 TraceCheckUtils]: 4: Hoare triple {5520#true} ~x~0 := 4; {5520#true} is VALID [2020-07-17 22:20:29,122 INFO L263 TraceCheckUtils]: 5: Hoare triple {5520#true} call #t~ret4 := fibo1(~x~0); {5520#true} is VALID [2020-07-17 22:20:29,122 INFO L280 TraceCheckUtils]: 6: Hoare triple {5520#true} ~n := #in~n; {5520#true} is VALID [2020-07-17 22:20:29,122 INFO L280 TraceCheckUtils]: 7: Hoare triple {5520#true} assume !(~n < 1); {5520#true} is VALID [2020-07-17 22:20:29,122 INFO L280 TraceCheckUtils]: 8: Hoare triple {5520#true} assume !(1 == ~n); {5520#true} is VALID [2020-07-17 22:20:29,123 INFO L263 TraceCheckUtils]: 9: Hoare triple {5520#true} call #t~ret0 := fibo2(~n - 1); {5520#true} is VALID [2020-07-17 22:20:29,123 INFO L280 TraceCheckUtils]: 10: Hoare triple {5520#true} ~n := #in~n; {5520#true} is VALID [2020-07-17 22:20:29,123 INFO L280 TraceCheckUtils]: 11: Hoare triple {5520#true} assume !(~n < 1); {5520#true} is VALID [2020-07-17 22:20:29,123 INFO L280 TraceCheckUtils]: 12: Hoare triple {5520#true} assume !(1 == ~n); {5520#true} is VALID [2020-07-17 22:20:29,123 INFO L263 TraceCheckUtils]: 13: Hoare triple {5520#true} call #t~ret2 := fibo1(~n - 1); {5520#true} is VALID [2020-07-17 22:20:29,124 INFO L280 TraceCheckUtils]: 14: Hoare triple {5520#true} ~n := #in~n; {5520#true} is VALID [2020-07-17 22:20:29,124 INFO L280 TraceCheckUtils]: 15: Hoare triple {5520#true} assume !(~n < 1); {5520#true} is VALID [2020-07-17 22:20:29,124 INFO L280 TraceCheckUtils]: 16: Hoare triple {5520#true} assume !(1 == ~n); {5520#true} is VALID [2020-07-17 22:20:29,124 INFO L263 TraceCheckUtils]: 17: Hoare triple {5520#true} call #t~ret0 := fibo2(~n - 1); {5520#true} is VALID [2020-07-17 22:20:29,124 INFO L280 TraceCheckUtils]: 18: Hoare triple {5520#true} ~n := #in~n; {5520#true} is VALID [2020-07-17 22:20:29,125 INFO L280 TraceCheckUtils]: 19: Hoare triple {5520#true} assume !(~n < 1); {5520#true} is VALID [2020-07-17 22:20:29,126 INFO L280 TraceCheckUtils]: 20: Hoare triple {5520#true} assume 1 == ~n;#res := 1; {5676#(and (<= 1 |fibo2_#res|) (<= |fibo2_#res| 1))} is VALID [2020-07-17 22:20:29,126 INFO L280 TraceCheckUtils]: 21: Hoare triple {5676#(and (<= 1 |fibo2_#res|) (<= |fibo2_#res| 1))} assume true; {5676#(and (<= 1 |fibo2_#res|) (<= |fibo2_#res| 1))} is VALID [2020-07-17 22:20:29,128 INFO L275 TraceCheckUtils]: 22: Hoare quadruple {5676#(and (<= 1 |fibo2_#res|) (<= |fibo2_#res| 1))} {5520#true} #57#return; {5669#(and (<= 1 |fibo1_#t~ret0|) (<= |fibo1_#t~ret0| 1))} is VALID [2020-07-17 22:20:29,128 INFO L280 TraceCheckUtils]: 23: Hoare triple {5669#(and (<= 1 |fibo1_#t~ret0|) (<= |fibo1_#t~ret0| 1))} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {5669#(and (<= 1 |fibo1_#t~ret0|) (<= |fibo1_#t~ret0| 1))} is VALID [2020-07-17 22:20:29,129 INFO L263 TraceCheckUtils]: 24: Hoare triple {5669#(and (<= 1 |fibo1_#t~ret0|) (<= |fibo1_#t~ret0| 1))} call #t~ret1 := fibo2(~n - 2); {5520#true} is VALID [2020-07-17 22:20:29,129 INFO L280 TraceCheckUtils]: 25: Hoare triple {5520#true} ~n := #in~n; {5520#true} is VALID [2020-07-17 22:20:29,129 INFO L280 TraceCheckUtils]: 26: Hoare triple {5520#true} assume ~n < 1;#res := 0; {5677#(and (<= |fibo2_#res| 0) (<= 0 |fibo2_#res|))} is VALID [2020-07-17 22:20:29,130 INFO L280 TraceCheckUtils]: 27: Hoare triple {5677#(and (<= |fibo2_#res| 0) (<= 0 |fibo2_#res|))} assume true; {5677#(and (<= |fibo2_#res| 0) (<= 0 |fibo2_#res|))} is VALID [2020-07-17 22:20:29,131 INFO L275 TraceCheckUtils]: 28: Hoare quadruple {5677#(and (<= |fibo2_#res| 0) (<= 0 |fibo2_#res|))} {5669#(and (<= 1 |fibo1_#t~ret0|) (<= |fibo1_#t~ret0| 1))} #59#return; {5674#(and (<= 1 (+ |fibo1_#t~ret1| |fibo1_#t~ret0|)) (<= (+ |fibo1_#t~ret1| |fibo1_#t~ret0|) 1))} is VALID [2020-07-17 22:20:29,132 INFO L280 TraceCheckUtils]: 29: Hoare triple {5674#(and (<= 1 (+ |fibo1_#t~ret1| |fibo1_#t~ret0|)) (<= (+ |fibo1_#t~ret1| |fibo1_#t~ret0|) 1))} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647;#res := #t~ret0 + #t~ret1;havoc #t~ret1;havoc #t~ret0; {5675#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} is VALID [2020-07-17 22:20:29,133 INFO L280 TraceCheckUtils]: 30: Hoare triple {5675#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} assume true; {5675#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} is VALID [2020-07-17 22:20:29,137 INFO L275 TraceCheckUtils]: 31: Hoare quadruple {5675#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} {5520#true} #53#return; {5656#(and (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|))} is VALID [2020-07-17 22:20:29,138 INFO L280 TraceCheckUtils]: 32: Hoare triple {5656#(and (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|))} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {5656#(and (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|))} is VALID [2020-07-17 22:20:29,138 INFO L263 TraceCheckUtils]: 33: Hoare triple {5656#(and (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|))} call #t~ret3 := fibo1(~n - 2); {5520#true} is VALID [2020-07-17 22:20:29,138 INFO L280 TraceCheckUtils]: 34: Hoare triple {5520#true} ~n := #in~n; {5520#true} is VALID [2020-07-17 22:20:29,138 INFO L280 TraceCheckUtils]: 35: Hoare triple {5520#true} assume !(~n < 1); {5520#true} is VALID [2020-07-17 22:20:29,140 INFO L280 TraceCheckUtils]: 36: Hoare triple {5520#true} assume 1 == ~n;#res := 1; {5675#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} is VALID [2020-07-17 22:20:29,140 INFO L280 TraceCheckUtils]: 37: Hoare triple {5675#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} assume true; {5675#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} is VALID [2020-07-17 22:20:29,143 INFO L275 TraceCheckUtils]: 38: Hoare quadruple {5675#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} {5656#(and (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|))} #55#return; {5662#(and (<= 2 (+ |fibo2_#t~ret3| |fibo2_#t~ret2|)) (<= (+ |fibo2_#t~ret3| |fibo2_#t~ret2|) 2))} is VALID [2020-07-17 22:20:29,144 INFO L280 TraceCheckUtils]: 39: Hoare triple {5662#(and (<= 2 (+ |fibo2_#t~ret3| |fibo2_#t~ret2|)) (<= (+ |fibo2_#t~ret3| |fibo2_#t~ret2|) 2))} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647;#res := #t~ret2 + #t~ret3;havoc #t~ret3;havoc #t~ret2; {5663#(and (<= |fibo2_#res| 2) (<= 2 |fibo2_#res|))} is VALID [2020-07-17 22:20:29,144 INFO L280 TraceCheckUtils]: 40: Hoare triple {5663#(and (<= |fibo2_#res| 2) (<= 2 |fibo2_#res|))} assume true; {5663#(and (<= |fibo2_#res| 2) (<= 2 |fibo2_#res|))} is VALID [2020-07-17 22:20:29,145 INFO L275 TraceCheckUtils]: 41: Hoare quadruple {5663#(and (<= |fibo2_#res| 2) (<= 2 |fibo2_#res|))} {5520#true} #57#return; {5617#(and (<= |fibo1_#t~ret0| 2) (<= 2 |fibo1_#t~ret0|))} is VALID [2020-07-17 22:20:29,146 INFO L280 TraceCheckUtils]: 42: Hoare triple {5617#(and (<= |fibo1_#t~ret0| 2) (<= 2 |fibo1_#t~ret0|))} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {5617#(and (<= |fibo1_#t~ret0| 2) (<= 2 |fibo1_#t~ret0|))} is VALID [2020-07-17 22:20:29,146 INFO L263 TraceCheckUtils]: 43: Hoare triple {5617#(and (<= |fibo1_#t~ret0| 2) (<= 2 |fibo1_#t~ret0|))} call #t~ret1 := fibo2(~n - 2); {5520#true} is VALID [2020-07-17 22:20:29,147 INFO L280 TraceCheckUtils]: 44: Hoare triple {5520#true} ~n := #in~n; {5520#true} is VALID [2020-07-17 22:20:29,147 INFO L280 TraceCheckUtils]: 45: Hoare triple {5520#true} assume !(~n < 1); {5520#true} is VALID [2020-07-17 22:20:29,147 INFO L280 TraceCheckUtils]: 46: Hoare triple {5520#true} assume !(1 == ~n); {5520#true} is VALID [2020-07-17 22:20:29,147 INFO L263 TraceCheckUtils]: 47: Hoare triple {5520#true} call #t~ret2 := fibo1(~n - 1); {5520#true} is VALID [2020-07-17 22:20:29,147 INFO L280 TraceCheckUtils]: 48: Hoare triple {5520#true} ~n := #in~n; {5520#true} is VALID [2020-07-17 22:20:29,148 INFO L280 TraceCheckUtils]: 49: Hoare triple {5520#true} assume !(~n < 1); {5520#true} is VALID [2020-07-17 22:20:29,148 INFO L280 TraceCheckUtils]: 50: Hoare triple {5520#true} assume 1 == ~n;#res := 1; {5675#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} is VALID [2020-07-17 22:20:29,149 INFO L280 TraceCheckUtils]: 51: Hoare triple {5675#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} assume true; {5675#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} is VALID [2020-07-17 22:20:29,150 INFO L275 TraceCheckUtils]: 52: Hoare quadruple {5675#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} {5520#true} #53#return; {5656#(and (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|))} is VALID [2020-07-17 22:20:29,151 INFO L280 TraceCheckUtils]: 53: Hoare triple {5656#(and (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|))} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {5656#(and (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|))} is VALID [2020-07-17 22:20:29,152 INFO L263 TraceCheckUtils]: 54: Hoare triple {5656#(and (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|))} call #t~ret3 := fibo1(~n - 2); {5520#true} is VALID [2020-07-17 22:20:29,152 INFO L280 TraceCheckUtils]: 55: Hoare triple {5520#true} ~n := #in~n; {5520#true} is VALID [2020-07-17 22:20:29,153 INFO L280 TraceCheckUtils]: 56: Hoare triple {5520#true} assume ~n < 1;#res := 0; {5688#(and (<= |fibo1_#res| 0) (<= 0 |fibo1_#res|))} is VALID [2020-07-17 22:20:29,154 INFO L280 TraceCheckUtils]: 57: Hoare triple {5688#(and (<= |fibo1_#res| 0) (<= 0 |fibo1_#res|))} assume true; {5688#(and (<= |fibo1_#res| 0) (<= 0 |fibo1_#res|))} is VALID [2020-07-17 22:20:29,155 INFO L275 TraceCheckUtils]: 58: Hoare quadruple {5688#(and (<= |fibo1_#res| 0) (<= 0 |fibo1_#res|))} {5656#(and (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|))} #55#return; {5687#(and (<= 1 (+ |fibo2_#t~ret3| |fibo2_#t~ret2|)) (<= (+ |fibo2_#t~ret3| |fibo2_#t~ret2|) 1))} is VALID [2020-07-17 22:20:29,157 INFO L280 TraceCheckUtils]: 59: Hoare triple {5687#(and (<= 1 (+ |fibo2_#t~ret3| |fibo2_#t~ret2|)) (<= (+ |fibo2_#t~ret3| |fibo2_#t~ret2|) 1))} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647;#res := #t~ret2 + #t~ret3;havoc #t~ret3;havoc #t~ret2; {5676#(and (<= 1 |fibo2_#res|) (<= |fibo2_#res| 1))} is VALID [2020-07-17 22:20:29,157 INFO L280 TraceCheckUtils]: 60: Hoare triple {5676#(and (<= 1 |fibo2_#res|) (<= |fibo2_#res| 1))} assume true; {5676#(and (<= 1 |fibo2_#res|) (<= |fibo2_#res| 1))} is VALID [2020-07-17 22:20:29,160 INFO L275 TraceCheckUtils]: 61: Hoare quadruple {5676#(and (<= 1 |fibo2_#res|) (<= |fibo2_#res| 1))} {5617#(and (<= |fibo1_#t~ret0| 2) (<= 2 |fibo1_#t~ret0|))} #59#return; {5636#(and (<= (+ |fibo1_#t~ret1| |fibo1_#t~ret0|) 3) (<= 3 (+ |fibo1_#t~ret1| |fibo1_#t~ret0|)))} is VALID [2020-07-17 22:20:29,161 INFO L280 TraceCheckUtils]: 62: Hoare triple {5636#(and (<= (+ |fibo1_#t~ret1| |fibo1_#t~ret0|) 3) (<= 3 (+ |fibo1_#t~ret1| |fibo1_#t~ret0|)))} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647;#res := #t~ret0 + #t~ret1;havoc #t~ret1;havoc #t~ret0; {5637#(and (<= 3 |fibo1_#res|) (<= |fibo1_#res| 3))} is VALID [2020-07-17 22:20:29,162 INFO L280 TraceCheckUtils]: 63: Hoare triple {5637#(and (<= 3 |fibo1_#res|) (<= |fibo1_#res| 3))} assume true; {5637#(and (<= 3 |fibo1_#res|) (<= |fibo1_#res| 3))} is VALID [2020-07-17 22:20:29,163 INFO L275 TraceCheckUtils]: 64: Hoare quadruple {5637#(and (<= 3 |fibo1_#res|) (<= |fibo1_#res| 3))} {5520#true} #51#return; {5583#(and (<= 3 |main_#t~ret4|) (<= |main_#t~ret4| 3))} is VALID [2020-07-17 22:20:29,164 INFO L280 TraceCheckUtils]: 65: Hoare triple {5583#(and (<= 3 |main_#t~ret4|) (<= |main_#t~ret4| 3))} assume -2147483648 <= #t~ret4 && #t~ret4 <= 2147483647;~result~0 := #t~ret4;havoc #t~ret4; {5584#(and (<= main_~result~0 3) (<= 3 main_~result~0))} is VALID [2020-07-17 22:20:29,164 INFO L280 TraceCheckUtils]: 66: Hoare triple {5584#(and (<= main_~result~0 3) (<= 3 main_~result~0))} assume 3 != ~result~0; {5521#false} is VALID [2020-07-17 22:20:29,165 INFO L280 TraceCheckUtils]: 67: Hoare triple {5521#false} assume !false; {5521#false} is VALID [2020-07-17 22:20:29,173 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2020-07-17 22:20:29,174 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036796559] [2020-07-17 22:20:29,174 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1242454721] [2020-07-17 22:20:29,174 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 22:20:29,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:20:29,244 INFO L264 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 39 conjunts are in the unsatisfiable core [2020-07-17 22:20:29,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:20:29,274 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-17 22:20:29,783 INFO L263 TraceCheckUtils]: 0: Hoare triple {5520#true} call ULTIMATE.init(); {5520#true} is VALID [2020-07-17 22:20:29,784 INFO L280 TraceCheckUtils]: 1: Hoare triple {5520#true} assume true; {5520#true} is VALID [2020-07-17 22:20:29,784 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {5520#true} {5520#true} #47#return; {5520#true} is VALID [2020-07-17 22:20:29,784 INFO L263 TraceCheckUtils]: 3: Hoare triple {5520#true} call #t~ret5 := main(); {5520#true} is VALID [2020-07-17 22:20:29,784 INFO L280 TraceCheckUtils]: 4: Hoare triple {5520#true} ~x~0 := 4; {5520#true} is VALID [2020-07-17 22:20:29,785 INFO L263 TraceCheckUtils]: 5: Hoare triple {5520#true} call #t~ret4 := fibo1(~x~0); {5520#true} is VALID [2020-07-17 22:20:29,785 INFO L280 TraceCheckUtils]: 6: Hoare triple {5520#true} ~n := #in~n; {5520#true} is VALID [2020-07-17 22:20:29,785 INFO L280 TraceCheckUtils]: 7: Hoare triple {5520#true} assume !(~n < 1); {5520#true} is VALID [2020-07-17 22:20:29,786 INFO L280 TraceCheckUtils]: 8: Hoare triple {5520#true} assume !(1 == ~n); {5520#true} is VALID [2020-07-17 22:20:29,786 INFO L263 TraceCheckUtils]: 9: Hoare triple {5520#true} call #t~ret0 := fibo2(~n - 1); {5520#true} is VALID [2020-07-17 22:20:29,786 INFO L280 TraceCheckUtils]: 10: Hoare triple {5520#true} ~n := #in~n; {5520#true} is VALID [2020-07-17 22:20:29,786 INFO L280 TraceCheckUtils]: 11: Hoare triple {5520#true} assume !(~n < 1); {5520#true} is VALID [2020-07-17 22:20:29,786 INFO L280 TraceCheckUtils]: 12: Hoare triple {5520#true} assume !(1 == ~n); {5520#true} is VALID [2020-07-17 22:20:29,787 INFO L263 TraceCheckUtils]: 13: Hoare triple {5520#true} call #t~ret2 := fibo1(~n - 1); {5520#true} is VALID [2020-07-17 22:20:29,787 INFO L280 TraceCheckUtils]: 14: Hoare triple {5520#true} ~n := #in~n; {5520#true} is VALID [2020-07-17 22:20:29,787 INFO L280 TraceCheckUtils]: 15: Hoare triple {5520#true} assume !(~n < 1); {5520#true} is VALID [2020-07-17 22:20:29,787 INFO L280 TraceCheckUtils]: 16: Hoare triple {5520#true} assume !(1 == ~n); {5520#true} is VALID [2020-07-17 22:20:29,788 INFO L263 TraceCheckUtils]: 17: Hoare triple {5520#true} call #t~ret0 := fibo2(~n - 1); {5520#true} is VALID [2020-07-17 22:20:29,788 INFO L280 TraceCheckUtils]: 18: Hoare triple {5520#true} ~n := #in~n; {5520#true} is VALID [2020-07-17 22:20:29,788 INFO L280 TraceCheckUtils]: 19: Hoare triple {5520#true} assume !(~n < 1); {5520#true} is VALID [2020-07-17 22:20:29,792 INFO L280 TraceCheckUtils]: 20: Hoare triple {5520#true} assume 1 == ~n;#res := 1; {5676#(and (<= 1 |fibo2_#res|) (<= |fibo2_#res| 1))} is VALID [2020-07-17 22:20:29,794 INFO L280 TraceCheckUtils]: 21: Hoare triple {5676#(and (<= 1 |fibo2_#res|) (<= |fibo2_#res| 1))} assume true; {5676#(and (<= 1 |fibo2_#res|) (<= |fibo2_#res| 1))} is VALID [2020-07-17 22:20:29,795 INFO L275 TraceCheckUtils]: 22: Hoare quadruple {5676#(and (<= 1 |fibo2_#res|) (<= |fibo2_#res| 1))} {5520#true} #57#return; {5669#(and (<= 1 |fibo1_#t~ret0|) (<= |fibo1_#t~ret0| 1))} is VALID [2020-07-17 22:20:29,796 INFO L280 TraceCheckUtils]: 23: Hoare triple {5669#(and (<= 1 |fibo1_#t~ret0|) (<= |fibo1_#t~ret0| 1))} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {5669#(and (<= 1 |fibo1_#t~ret0|) (<= |fibo1_#t~ret0| 1))} is VALID [2020-07-17 22:20:29,796 INFO L263 TraceCheckUtils]: 24: Hoare triple {5669#(and (<= 1 |fibo1_#t~ret0|) (<= |fibo1_#t~ret0| 1))} call #t~ret1 := fibo2(~n - 2); {5520#true} is VALID [2020-07-17 22:20:29,796 INFO L280 TraceCheckUtils]: 25: Hoare triple {5520#true} ~n := #in~n; {5520#true} is VALID [2020-07-17 22:20:29,797 INFO L280 TraceCheckUtils]: 26: Hoare triple {5520#true} assume ~n < 1;#res := 0; {5677#(and (<= |fibo2_#res| 0) (<= 0 |fibo2_#res|))} is VALID [2020-07-17 22:20:29,798 INFO L280 TraceCheckUtils]: 27: Hoare triple {5677#(and (<= |fibo2_#res| 0) (<= 0 |fibo2_#res|))} assume true; {5677#(and (<= |fibo2_#res| 0) (<= 0 |fibo2_#res|))} is VALID [2020-07-17 22:20:29,799 INFO L275 TraceCheckUtils]: 28: Hoare quadruple {5677#(and (<= |fibo2_#res| 0) (<= 0 |fibo2_#res|))} {5669#(and (<= 1 |fibo1_#t~ret0|) (<= |fibo1_#t~ret0| 1))} #59#return; {5776#(and (<= 1 |fibo1_#t~ret0|) (<= 0 |fibo1_#t~ret1|) (<= |fibo1_#t~ret1| 0) (<= |fibo1_#t~ret0| 1))} is VALID [2020-07-17 22:20:29,800 INFO L280 TraceCheckUtils]: 29: Hoare triple {5776#(and (<= 1 |fibo1_#t~ret0|) (<= 0 |fibo1_#t~ret1|) (<= |fibo1_#t~ret1| 0) (<= |fibo1_#t~ret0| 1))} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647;#res := #t~ret0 + #t~ret1;havoc #t~ret1;havoc #t~ret0; {5675#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} is VALID [2020-07-17 22:20:29,801 INFO L280 TraceCheckUtils]: 30: Hoare triple {5675#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} assume true; {5675#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} is VALID [2020-07-17 22:20:29,802 INFO L275 TraceCheckUtils]: 31: Hoare quadruple {5675#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} {5520#true} #53#return; {5656#(and (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|))} is VALID [2020-07-17 22:20:29,803 INFO L280 TraceCheckUtils]: 32: Hoare triple {5656#(and (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|))} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {5656#(and (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|))} is VALID [2020-07-17 22:20:29,803 INFO L263 TraceCheckUtils]: 33: Hoare triple {5656#(and (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|))} call #t~ret3 := fibo1(~n - 2); {5520#true} is VALID [2020-07-17 22:20:29,804 INFO L280 TraceCheckUtils]: 34: Hoare triple {5520#true} ~n := #in~n; {5520#true} is VALID [2020-07-17 22:20:29,804 INFO L280 TraceCheckUtils]: 35: Hoare triple {5520#true} assume !(~n < 1); {5520#true} is VALID [2020-07-17 22:20:29,804 INFO L280 TraceCheckUtils]: 36: Hoare triple {5520#true} assume 1 == ~n;#res := 1; {5675#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} is VALID [2020-07-17 22:20:29,805 INFO L280 TraceCheckUtils]: 37: Hoare triple {5675#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} assume true; {5675#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} is VALID [2020-07-17 22:20:29,806 INFO L275 TraceCheckUtils]: 38: Hoare quadruple {5675#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} {5656#(and (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|))} #55#return; {5807#(and (<= |fibo2_#t~ret2| 1) (<= |fibo2_#t~ret3| 1) (<= 1 |fibo2_#t~ret3|) (<= 1 |fibo2_#t~ret2|))} is VALID [2020-07-17 22:20:29,808 INFO L280 TraceCheckUtils]: 39: Hoare triple {5807#(and (<= |fibo2_#t~ret2| 1) (<= |fibo2_#t~ret3| 1) (<= 1 |fibo2_#t~ret3|) (<= 1 |fibo2_#t~ret2|))} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647;#res := #t~ret2 + #t~ret3;havoc #t~ret3;havoc #t~ret2; {5663#(and (<= |fibo2_#res| 2) (<= 2 |fibo2_#res|))} is VALID [2020-07-17 22:20:29,809 INFO L280 TraceCheckUtils]: 40: Hoare triple {5663#(and (<= |fibo2_#res| 2) (<= 2 |fibo2_#res|))} assume true; {5663#(and (<= |fibo2_#res| 2) (<= 2 |fibo2_#res|))} is VALID [2020-07-17 22:20:29,810 INFO L275 TraceCheckUtils]: 41: Hoare quadruple {5663#(and (<= |fibo2_#res| 2) (<= 2 |fibo2_#res|))} {5520#true} #57#return; {5617#(and (<= |fibo1_#t~ret0| 2) (<= 2 |fibo1_#t~ret0|))} is VALID [2020-07-17 22:20:29,811 INFO L280 TraceCheckUtils]: 42: Hoare triple {5617#(and (<= |fibo1_#t~ret0| 2) (<= 2 |fibo1_#t~ret0|))} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {5617#(and (<= |fibo1_#t~ret0| 2) (<= 2 |fibo1_#t~ret0|))} is VALID [2020-07-17 22:20:29,811 INFO L263 TraceCheckUtils]: 43: Hoare triple {5617#(and (<= |fibo1_#t~ret0| 2) (<= 2 |fibo1_#t~ret0|))} call #t~ret1 := fibo2(~n - 2); {5520#true} is VALID [2020-07-17 22:20:29,812 INFO L280 TraceCheckUtils]: 44: Hoare triple {5520#true} ~n := #in~n; {5520#true} is VALID [2020-07-17 22:20:29,812 INFO L280 TraceCheckUtils]: 45: Hoare triple {5520#true} assume !(~n < 1); {5520#true} is VALID [2020-07-17 22:20:29,812 INFO L280 TraceCheckUtils]: 46: Hoare triple {5520#true} assume !(1 == ~n); {5520#true} is VALID [2020-07-17 22:20:29,812 INFO L263 TraceCheckUtils]: 47: Hoare triple {5520#true} call #t~ret2 := fibo1(~n - 1); {5520#true} is VALID [2020-07-17 22:20:29,812 INFO L280 TraceCheckUtils]: 48: Hoare triple {5520#true} ~n := #in~n; {5520#true} is VALID [2020-07-17 22:20:29,813 INFO L280 TraceCheckUtils]: 49: Hoare triple {5520#true} assume !(~n < 1); {5520#true} is VALID [2020-07-17 22:20:29,813 INFO L280 TraceCheckUtils]: 50: Hoare triple {5520#true} assume 1 == ~n;#res := 1; {5675#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} is VALID [2020-07-17 22:20:29,814 INFO L280 TraceCheckUtils]: 51: Hoare triple {5675#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} assume true; {5675#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} is VALID [2020-07-17 22:20:29,815 INFO L275 TraceCheckUtils]: 52: Hoare quadruple {5675#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} {5520#true} #53#return; {5656#(and (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|))} is VALID [2020-07-17 22:20:29,816 INFO L280 TraceCheckUtils]: 53: Hoare triple {5656#(and (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|))} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {5656#(and (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|))} is VALID [2020-07-17 22:20:29,817 INFO L263 TraceCheckUtils]: 54: Hoare triple {5656#(and (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|))} call #t~ret3 := fibo1(~n - 2); {5520#true} is VALID [2020-07-17 22:20:29,817 INFO L280 TraceCheckUtils]: 55: Hoare triple {5520#true} ~n := #in~n; {5520#true} is VALID [2020-07-17 22:20:29,819 INFO L280 TraceCheckUtils]: 56: Hoare triple {5520#true} assume ~n < 1;#res := 0; {5688#(and (<= |fibo1_#res| 0) (<= 0 |fibo1_#res|))} is VALID [2020-07-17 22:20:29,820 INFO L280 TraceCheckUtils]: 57: Hoare triple {5688#(and (<= |fibo1_#res| 0) (<= 0 |fibo1_#res|))} assume true; {5688#(and (<= |fibo1_#res| 0) (<= 0 |fibo1_#res|))} is VALID [2020-07-17 22:20:29,821 INFO L275 TraceCheckUtils]: 58: Hoare quadruple {5688#(and (<= |fibo1_#res| 0) (<= 0 |fibo1_#res|))} {5656#(and (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|))} #55#return; {5868#(and (<= 0 |fibo2_#t~ret3|) (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|) (<= |fibo2_#t~ret3| 0))} is VALID [2020-07-17 22:20:29,822 INFO L280 TraceCheckUtils]: 59: Hoare triple {5868#(and (<= 0 |fibo2_#t~ret3|) (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|) (<= |fibo2_#t~ret3| 0))} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647;#res := #t~ret2 + #t~ret3;havoc #t~ret3;havoc #t~ret2; {5676#(and (<= 1 |fibo2_#res|) (<= |fibo2_#res| 1))} is VALID [2020-07-17 22:20:29,823 INFO L280 TraceCheckUtils]: 60: Hoare triple {5676#(and (<= 1 |fibo2_#res|) (<= |fibo2_#res| 1))} assume true; {5676#(and (<= 1 |fibo2_#res|) (<= |fibo2_#res| 1))} is VALID [2020-07-17 22:20:29,824 INFO L275 TraceCheckUtils]: 61: Hoare quadruple {5676#(and (<= 1 |fibo2_#res|) (<= |fibo2_#res| 1))} {5617#(and (<= |fibo1_#t~ret0| 2) (<= 2 |fibo1_#t~ret0|))} #59#return; {5878#(and (<= |fibo1_#t~ret0| 2) (<= 1 |fibo1_#t~ret1|) (<= |fibo1_#t~ret1| 1) (<= 2 |fibo1_#t~ret0|))} is VALID [2020-07-17 22:20:29,825 INFO L280 TraceCheckUtils]: 62: Hoare triple {5878#(and (<= |fibo1_#t~ret0| 2) (<= 1 |fibo1_#t~ret1|) (<= |fibo1_#t~ret1| 1) (<= 2 |fibo1_#t~ret0|))} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647;#res := #t~ret0 + #t~ret1;havoc #t~ret1;havoc #t~ret0; {5637#(and (<= 3 |fibo1_#res|) (<= |fibo1_#res| 3))} is VALID [2020-07-17 22:20:29,826 INFO L280 TraceCheckUtils]: 63: Hoare triple {5637#(and (<= 3 |fibo1_#res|) (<= |fibo1_#res| 3))} assume true; {5637#(and (<= 3 |fibo1_#res|) (<= |fibo1_#res| 3))} is VALID [2020-07-17 22:20:29,827 INFO L275 TraceCheckUtils]: 64: Hoare quadruple {5637#(and (<= 3 |fibo1_#res|) (<= |fibo1_#res| 3))} {5520#true} #51#return; {5583#(and (<= 3 |main_#t~ret4|) (<= |main_#t~ret4| 3))} is VALID [2020-07-17 22:20:29,829 INFO L280 TraceCheckUtils]: 65: Hoare triple {5583#(and (<= 3 |main_#t~ret4|) (<= |main_#t~ret4| 3))} assume -2147483648 <= #t~ret4 && #t~ret4 <= 2147483647;~result~0 := #t~ret4;havoc #t~ret4; {5584#(and (<= main_~result~0 3) (<= 3 main_~result~0))} is VALID [2020-07-17 22:20:29,829 INFO L280 TraceCheckUtils]: 66: Hoare triple {5584#(and (<= main_~result~0 3) (<= 3 main_~result~0))} assume 3 != ~result~0; {5521#false} is VALID [2020-07-17 22:20:29,830 INFO L280 TraceCheckUtils]: 67: Hoare triple {5521#false} assume !false; {5521#false} is VALID [2020-07-17 22:20:29,836 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2020-07-17 22:20:29,837 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-17 22:20:29,837 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 21 [2020-07-17 22:20:29,837 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105237394] [2020-07-17 22:20:29,838 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 68 [2020-07-17 22:20:29,839 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-17 22:20:29,839 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 21 states. [2020-07-17 22:20:29,914 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 53 edges. 53 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:20:29,915 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-07-17 22:20:29,915 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 22:20:29,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-07-17 22:20:29,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=373, Unknown=0, NotChecked=0, Total=420 [2020-07-17 22:20:29,916 INFO L87 Difference]: Start difference. First operand 80 states and 107 transitions. Second operand 21 states. [2020-07-17 22:20:31,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:20:31,146 INFO L93 Difference]: Finished difference Result 97 states and 131 transitions. [2020-07-17 22:20:31,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-07-17 22:20:31,147 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 68 [2020-07-17 22:20:31,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 22:20:31,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-07-17 22:20:31,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 68 transitions. [2020-07-17 22:20:31,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-07-17 22:20:31,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 68 transitions. [2020-07-17 22:20:31,150 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 17 states and 68 transitions. [2020-07-17 22:20:31,247 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 68 edges. 68 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:20:31,250 INFO L225 Difference]: With dead ends: 97 [2020-07-17 22:20:31,250 INFO L226 Difference]: Without dead ends: 93 [2020-07-17 22:20:31,251 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 84 SyntacticMatches, 5 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=47, Invalid=373, Unknown=0, NotChecked=0, Total=420 [2020-07-17 22:20:31,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2020-07-17 22:20:31,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 90. [2020-07-17 22:20:31,324 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-17 22:20:31,324 INFO L82 GeneralOperation]: Start isEquivalent. First operand 93 states. Second operand 90 states. [2020-07-17 22:20:31,324 INFO L74 IsIncluded]: Start isIncluded. First operand 93 states. Second operand 90 states. [2020-07-17 22:20:31,324 INFO L87 Difference]: Start difference. First operand 93 states. Second operand 90 states. [2020-07-17 22:20:31,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:20:31,329 INFO L93 Difference]: Finished difference Result 93 states and 127 transitions. [2020-07-17 22:20:31,329 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 127 transitions. [2020-07-17 22:20:31,330 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:20:31,331 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:20:31,331 INFO L74 IsIncluded]: Start isIncluded. First operand 90 states. Second operand 93 states. [2020-07-17 22:20:31,331 INFO L87 Difference]: Start difference. First operand 90 states. Second operand 93 states. [2020-07-17 22:20:31,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:20:31,336 INFO L93 Difference]: Finished difference Result 93 states and 127 transitions. [2020-07-17 22:20:31,336 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 127 transitions. [2020-07-17 22:20:31,337 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:20:31,337 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:20:31,337 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-17 22:20:31,337 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-17 22:20:31,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2020-07-17 22:20:31,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 122 transitions. [2020-07-17 22:20:31,342 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 122 transitions. Word has length 68 [2020-07-17 22:20:31,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 22:20:31,342 INFO L479 AbstractCegarLoop]: Abstraction has 90 states and 122 transitions. [2020-07-17 22:20:31,343 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-07-17 22:20:31,343 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 122 transitions. [2020-07-17 22:20:31,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-07-17 22:20:31,344 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 22:20:31,344 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 22:20:31,558 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-07-17 22:20:31,559 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 22:20:31,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 22:20:31,560 INFO L82 PathProgramCache]: Analyzing trace with hash -1711191765, now seen corresponding path program 1 times [2020-07-17 22:20:31,560 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 22:20:31,561 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739848055] [2020-07-17 22:20:31,561 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 22:20:31,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:20:31,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:20:31,601 INFO L280 TraceCheckUtils]: 0: Hoare triple {6321#true} assume true; {6321#true} is VALID [2020-07-17 22:20:31,602 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {6321#true} {6321#true} #47#return; {6321#true} is VALID [2020-07-17 22:20:31,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:20:31,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:20:31,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:20:31,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:20:31,681 INFO L280 TraceCheckUtils]: 0: Hoare triple {6321#true} ~n := #in~n; {6472#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-17 22:20:31,682 INFO L280 TraceCheckUtils]: 1: Hoare triple {6472#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {6472#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-17 22:20:31,682 INFO L280 TraceCheckUtils]: 2: Hoare triple {6472#(= fibo2_~n |fibo2_#in~n|)} assume 1 == ~n;#res := 1; {6473#(<= |fibo2_#in~n| 1)} is VALID [2020-07-17 22:20:31,683 INFO L280 TraceCheckUtils]: 3: Hoare triple {6473#(<= |fibo2_#in~n| 1)} assume true; {6473#(<= |fibo2_#in~n| 1)} is VALID [2020-07-17 22:20:31,684 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {6473#(<= |fibo2_#in~n| 1)} {6321#true} #57#return; {6466#(<= fibo1_~n 2)} is VALID [2020-07-17 22:20:31,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:20:31,703 INFO L280 TraceCheckUtils]: 0: Hoare triple {6321#true} ~n := #in~n; {6472#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-17 22:20:31,705 INFO L280 TraceCheckUtils]: 1: Hoare triple {6472#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {6474#(<= 1 |fibo2_#in~n|)} is VALID [2020-07-17 22:20:31,705 INFO L280 TraceCheckUtils]: 2: Hoare triple {6474#(<= 1 |fibo2_#in~n|)} assume 1 == ~n;#res := 1; {6474#(<= 1 |fibo2_#in~n|)} is VALID [2020-07-17 22:20:31,706 INFO L280 TraceCheckUtils]: 3: Hoare triple {6474#(<= 1 |fibo2_#in~n|)} assume true; {6474#(<= 1 |fibo2_#in~n|)} is VALID [2020-07-17 22:20:31,707 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {6474#(<= 1 |fibo2_#in~n|)} {6466#(<= fibo1_~n 2)} #59#return; {6322#false} is VALID [2020-07-17 22:20:31,708 INFO L280 TraceCheckUtils]: 0: Hoare triple {6321#true} ~n := #in~n; {6321#true} is VALID [2020-07-17 22:20:31,708 INFO L280 TraceCheckUtils]: 1: Hoare triple {6321#true} assume !(~n < 1); {6321#true} is VALID [2020-07-17 22:20:31,708 INFO L280 TraceCheckUtils]: 2: Hoare triple {6321#true} assume !(1 == ~n); {6321#true} is VALID [2020-07-17 22:20:31,708 INFO L263 TraceCheckUtils]: 3: Hoare triple {6321#true} call #t~ret0 := fibo2(~n - 1); {6321#true} is VALID [2020-07-17 22:20:31,709 INFO L280 TraceCheckUtils]: 4: Hoare triple {6321#true} ~n := #in~n; {6472#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-17 22:20:31,710 INFO L280 TraceCheckUtils]: 5: Hoare triple {6472#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {6472#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-17 22:20:31,710 INFO L280 TraceCheckUtils]: 6: Hoare triple {6472#(= fibo2_~n |fibo2_#in~n|)} assume 1 == ~n;#res := 1; {6473#(<= |fibo2_#in~n| 1)} is VALID [2020-07-17 22:20:31,711 INFO L280 TraceCheckUtils]: 7: Hoare triple {6473#(<= |fibo2_#in~n| 1)} assume true; {6473#(<= |fibo2_#in~n| 1)} is VALID [2020-07-17 22:20:31,712 INFO L275 TraceCheckUtils]: 8: Hoare quadruple {6473#(<= |fibo2_#in~n| 1)} {6321#true} #57#return; {6466#(<= fibo1_~n 2)} is VALID [2020-07-17 22:20:31,713 INFO L280 TraceCheckUtils]: 9: Hoare triple {6466#(<= fibo1_~n 2)} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {6466#(<= fibo1_~n 2)} is VALID [2020-07-17 22:20:31,713 INFO L263 TraceCheckUtils]: 10: Hoare triple {6466#(<= fibo1_~n 2)} call #t~ret1 := fibo2(~n - 2); {6321#true} is VALID [2020-07-17 22:20:31,714 INFO L280 TraceCheckUtils]: 11: Hoare triple {6321#true} ~n := #in~n; {6472#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-17 22:20:31,715 INFO L280 TraceCheckUtils]: 12: Hoare triple {6472#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {6474#(<= 1 |fibo2_#in~n|)} is VALID [2020-07-17 22:20:31,715 INFO L280 TraceCheckUtils]: 13: Hoare triple {6474#(<= 1 |fibo2_#in~n|)} assume 1 == ~n;#res := 1; {6474#(<= 1 |fibo2_#in~n|)} is VALID [2020-07-17 22:20:31,716 INFO L280 TraceCheckUtils]: 14: Hoare triple {6474#(<= 1 |fibo2_#in~n|)} assume true; {6474#(<= 1 |fibo2_#in~n|)} is VALID [2020-07-17 22:20:31,717 INFO L275 TraceCheckUtils]: 15: Hoare quadruple {6474#(<= 1 |fibo2_#in~n|)} {6466#(<= fibo1_~n 2)} #59#return; {6322#false} is VALID [2020-07-17 22:20:31,717 INFO L280 TraceCheckUtils]: 16: Hoare triple {6322#false} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647;#res := #t~ret0 + #t~ret1;havoc #t~ret1;havoc #t~ret0; {6322#false} is VALID [2020-07-17 22:20:31,718 INFO L280 TraceCheckUtils]: 17: Hoare triple {6322#false} assume true; {6322#false} is VALID [2020-07-17 22:20:31,718 INFO L275 TraceCheckUtils]: 18: Hoare quadruple {6322#false} {6321#true} #53#return; {6322#false} is VALID [2020-07-17 22:20:31,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:20:31,723 INFO L280 TraceCheckUtils]: 0: Hoare triple {6321#true} ~n := #in~n; {6321#true} is VALID [2020-07-17 22:20:31,724 INFO L280 TraceCheckUtils]: 1: Hoare triple {6321#true} assume !(~n < 1); {6321#true} is VALID [2020-07-17 22:20:31,724 INFO L280 TraceCheckUtils]: 2: Hoare triple {6321#true} assume 1 == ~n;#res := 1; {6321#true} is VALID [2020-07-17 22:20:31,724 INFO L280 TraceCheckUtils]: 3: Hoare triple {6321#true} assume true; {6321#true} is VALID [2020-07-17 22:20:31,724 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {6321#true} {6322#false} #55#return; {6322#false} is VALID [2020-07-17 22:20:31,725 INFO L280 TraceCheckUtils]: 0: Hoare triple {6321#true} ~n := #in~n; {6321#true} is VALID [2020-07-17 22:20:31,725 INFO L280 TraceCheckUtils]: 1: Hoare triple {6321#true} assume !(~n < 1); {6321#true} is VALID [2020-07-17 22:20:31,725 INFO L280 TraceCheckUtils]: 2: Hoare triple {6321#true} assume !(1 == ~n); {6321#true} is VALID [2020-07-17 22:20:31,725 INFO L263 TraceCheckUtils]: 3: Hoare triple {6321#true} call #t~ret2 := fibo1(~n - 1); {6321#true} is VALID [2020-07-17 22:20:31,725 INFO L280 TraceCheckUtils]: 4: Hoare triple {6321#true} ~n := #in~n; {6321#true} is VALID [2020-07-17 22:20:31,726 INFO L280 TraceCheckUtils]: 5: Hoare triple {6321#true} assume !(~n < 1); {6321#true} is VALID [2020-07-17 22:20:31,726 INFO L280 TraceCheckUtils]: 6: Hoare triple {6321#true} assume !(1 == ~n); {6321#true} is VALID [2020-07-17 22:20:31,726 INFO L263 TraceCheckUtils]: 7: Hoare triple {6321#true} call #t~ret0 := fibo2(~n - 1); {6321#true} is VALID [2020-07-17 22:20:31,727 INFO L280 TraceCheckUtils]: 8: Hoare triple {6321#true} ~n := #in~n; {6472#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-17 22:20:31,728 INFO L280 TraceCheckUtils]: 9: Hoare triple {6472#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {6472#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-17 22:20:31,729 INFO L280 TraceCheckUtils]: 10: Hoare triple {6472#(= fibo2_~n |fibo2_#in~n|)} assume 1 == ~n;#res := 1; {6473#(<= |fibo2_#in~n| 1)} is VALID [2020-07-17 22:20:31,729 INFO L280 TraceCheckUtils]: 11: Hoare triple {6473#(<= |fibo2_#in~n| 1)} assume true; {6473#(<= |fibo2_#in~n| 1)} is VALID [2020-07-17 22:20:31,730 INFO L275 TraceCheckUtils]: 12: Hoare quadruple {6473#(<= |fibo2_#in~n| 1)} {6321#true} #57#return; {6466#(<= fibo1_~n 2)} is VALID [2020-07-17 22:20:31,731 INFO L280 TraceCheckUtils]: 13: Hoare triple {6466#(<= fibo1_~n 2)} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {6466#(<= fibo1_~n 2)} is VALID [2020-07-17 22:20:31,732 INFO L263 TraceCheckUtils]: 14: Hoare triple {6466#(<= fibo1_~n 2)} call #t~ret1 := fibo2(~n - 2); {6321#true} is VALID [2020-07-17 22:20:31,732 INFO L280 TraceCheckUtils]: 15: Hoare triple {6321#true} ~n := #in~n; {6472#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-17 22:20:31,733 INFO L280 TraceCheckUtils]: 16: Hoare triple {6472#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {6474#(<= 1 |fibo2_#in~n|)} is VALID [2020-07-17 22:20:31,733 INFO L280 TraceCheckUtils]: 17: Hoare triple {6474#(<= 1 |fibo2_#in~n|)} assume 1 == ~n;#res := 1; {6474#(<= 1 |fibo2_#in~n|)} is VALID [2020-07-17 22:20:31,733 INFO L280 TraceCheckUtils]: 18: Hoare triple {6474#(<= 1 |fibo2_#in~n|)} assume true; {6474#(<= 1 |fibo2_#in~n|)} is VALID [2020-07-17 22:20:31,735 INFO L275 TraceCheckUtils]: 19: Hoare quadruple {6474#(<= 1 |fibo2_#in~n|)} {6466#(<= fibo1_~n 2)} #59#return; {6322#false} is VALID [2020-07-17 22:20:31,735 INFO L280 TraceCheckUtils]: 20: Hoare triple {6322#false} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647;#res := #t~ret0 + #t~ret1;havoc #t~ret1;havoc #t~ret0; {6322#false} is VALID [2020-07-17 22:20:31,735 INFO L280 TraceCheckUtils]: 21: Hoare triple {6322#false} assume true; {6322#false} is VALID [2020-07-17 22:20:31,735 INFO L275 TraceCheckUtils]: 22: Hoare quadruple {6322#false} {6321#true} #53#return; {6322#false} is VALID [2020-07-17 22:20:31,736 INFO L280 TraceCheckUtils]: 23: Hoare triple {6322#false} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {6322#false} is VALID [2020-07-17 22:20:31,736 INFO L263 TraceCheckUtils]: 24: Hoare triple {6322#false} call #t~ret3 := fibo1(~n - 2); {6321#true} is VALID [2020-07-17 22:20:31,737 INFO L280 TraceCheckUtils]: 25: Hoare triple {6321#true} ~n := #in~n; {6321#true} is VALID [2020-07-17 22:20:31,737 INFO L280 TraceCheckUtils]: 26: Hoare triple {6321#true} assume !(~n < 1); {6321#true} is VALID [2020-07-17 22:20:31,737 INFO L280 TraceCheckUtils]: 27: Hoare triple {6321#true} assume 1 == ~n;#res := 1; {6321#true} is VALID [2020-07-17 22:20:31,737 INFO L280 TraceCheckUtils]: 28: Hoare triple {6321#true} assume true; {6321#true} is VALID [2020-07-17 22:20:31,737 INFO L275 TraceCheckUtils]: 29: Hoare quadruple {6321#true} {6322#false} #55#return; {6322#false} is VALID [2020-07-17 22:20:31,738 INFO L280 TraceCheckUtils]: 30: Hoare triple {6322#false} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647;#res := #t~ret2 + #t~ret3;havoc #t~ret3;havoc #t~ret2; {6322#false} is VALID [2020-07-17 22:20:31,738 INFO L280 TraceCheckUtils]: 31: Hoare triple {6322#false} assume true; {6322#false} is VALID [2020-07-17 22:20:31,738 INFO L275 TraceCheckUtils]: 32: Hoare quadruple {6322#false} {6321#true} #57#return; {6322#false} is VALID [2020-07-17 22:20:31,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:20:31,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:20:31,752 INFO L280 TraceCheckUtils]: 0: Hoare triple {6321#true} ~n := #in~n; {6321#true} is VALID [2020-07-17 22:20:31,753 INFO L280 TraceCheckUtils]: 1: Hoare triple {6321#true} assume !(~n < 1); {6321#true} is VALID [2020-07-17 22:20:31,753 INFO L280 TraceCheckUtils]: 2: Hoare triple {6321#true} assume 1 == ~n;#res := 1; {6321#true} is VALID [2020-07-17 22:20:31,754 INFO L280 TraceCheckUtils]: 3: Hoare triple {6321#true} assume true; {6321#true} is VALID [2020-07-17 22:20:31,754 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {6321#true} {6321#true} #53#return; {6321#true} is VALID [2020-07-17 22:20:31,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:20:31,758 INFO L280 TraceCheckUtils]: 0: Hoare triple {6321#true} ~n := #in~n; {6321#true} is VALID [2020-07-17 22:20:31,759 INFO L280 TraceCheckUtils]: 1: Hoare triple {6321#true} assume ~n < 1;#res := 0; {6321#true} is VALID [2020-07-17 22:20:31,759 INFO L280 TraceCheckUtils]: 2: Hoare triple {6321#true} assume true; {6321#true} is VALID [2020-07-17 22:20:31,759 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {6321#true} {6321#true} #55#return; {6321#true} is VALID [2020-07-17 22:20:31,760 INFO L280 TraceCheckUtils]: 0: Hoare triple {6321#true} ~n := #in~n; {6321#true} is VALID [2020-07-17 22:20:31,760 INFO L280 TraceCheckUtils]: 1: Hoare triple {6321#true} assume !(~n < 1); {6321#true} is VALID [2020-07-17 22:20:31,760 INFO L280 TraceCheckUtils]: 2: Hoare triple {6321#true} assume !(1 == ~n); {6321#true} is VALID [2020-07-17 22:20:31,760 INFO L263 TraceCheckUtils]: 3: Hoare triple {6321#true} call #t~ret2 := fibo1(~n - 1); {6321#true} is VALID [2020-07-17 22:20:31,760 INFO L280 TraceCheckUtils]: 4: Hoare triple {6321#true} ~n := #in~n; {6321#true} is VALID [2020-07-17 22:20:31,761 INFO L280 TraceCheckUtils]: 5: Hoare triple {6321#true} assume !(~n < 1); {6321#true} is VALID [2020-07-17 22:20:31,761 INFO L280 TraceCheckUtils]: 6: Hoare triple {6321#true} assume 1 == ~n;#res := 1; {6321#true} is VALID [2020-07-17 22:20:31,761 INFO L280 TraceCheckUtils]: 7: Hoare triple {6321#true} assume true; {6321#true} is VALID [2020-07-17 22:20:31,761 INFO L275 TraceCheckUtils]: 8: Hoare quadruple {6321#true} {6321#true} #53#return; {6321#true} is VALID [2020-07-17 22:20:31,762 INFO L280 TraceCheckUtils]: 9: Hoare triple {6321#true} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {6321#true} is VALID [2020-07-17 22:20:31,762 INFO L263 TraceCheckUtils]: 10: Hoare triple {6321#true} call #t~ret3 := fibo1(~n - 2); {6321#true} is VALID [2020-07-17 22:20:31,762 INFO L280 TraceCheckUtils]: 11: Hoare triple {6321#true} ~n := #in~n; {6321#true} is VALID [2020-07-17 22:20:31,762 INFO L280 TraceCheckUtils]: 12: Hoare triple {6321#true} assume ~n < 1;#res := 0; {6321#true} is VALID [2020-07-17 22:20:31,763 INFO L280 TraceCheckUtils]: 13: Hoare triple {6321#true} assume true; {6321#true} is VALID [2020-07-17 22:20:31,763 INFO L275 TraceCheckUtils]: 14: Hoare quadruple {6321#true} {6321#true} #55#return; {6321#true} is VALID [2020-07-17 22:20:31,763 INFO L280 TraceCheckUtils]: 15: Hoare triple {6321#true} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647;#res := #t~ret2 + #t~ret3;havoc #t~ret3;havoc #t~ret2; {6321#true} is VALID [2020-07-17 22:20:31,763 INFO L280 TraceCheckUtils]: 16: Hoare triple {6321#true} assume true; {6321#true} is VALID [2020-07-17 22:20:31,763 INFO L275 TraceCheckUtils]: 17: Hoare quadruple {6321#true} {6322#false} #59#return; {6322#false} is VALID [2020-07-17 22:20:31,764 INFO L280 TraceCheckUtils]: 0: Hoare triple {6321#true} ~n := #in~n; {6321#true} is VALID [2020-07-17 22:20:31,764 INFO L280 TraceCheckUtils]: 1: Hoare triple {6321#true} assume !(~n < 1); {6321#true} is VALID [2020-07-17 22:20:31,764 INFO L280 TraceCheckUtils]: 2: Hoare triple {6321#true} assume !(1 == ~n); {6321#true} is VALID [2020-07-17 22:20:31,765 INFO L263 TraceCheckUtils]: 3: Hoare triple {6321#true} call #t~ret0 := fibo2(~n - 1); {6321#true} is VALID [2020-07-17 22:20:31,765 INFO L280 TraceCheckUtils]: 4: Hoare triple {6321#true} ~n := #in~n; {6321#true} is VALID [2020-07-17 22:20:31,765 INFO L280 TraceCheckUtils]: 5: Hoare triple {6321#true} assume !(~n < 1); {6321#true} is VALID [2020-07-17 22:20:31,765 INFO L280 TraceCheckUtils]: 6: Hoare triple {6321#true} assume !(1 == ~n); {6321#true} is VALID [2020-07-17 22:20:31,765 INFO L263 TraceCheckUtils]: 7: Hoare triple {6321#true} call #t~ret2 := fibo1(~n - 1); {6321#true} is VALID [2020-07-17 22:20:31,766 INFO L280 TraceCheckUtils]: 8: Hoare triple {6321#true} ~n := #in~n; {6321#true} is VALID [2020-07-17 22:20:31,766 INFO L280 TraceCheckUtils]: 9: Hoare triple {6321#true} assume !(~n < 1); {6321#true} is VALID [2020-07-17 22:20:31,766 INFO L280 TraceCheckUtils]: 10: Hoare triple {6321#true} assume !(1 == ~n); {6321#true} is VALID [2020-07-17 22:20:31,766 INFO L263 TraceCheckUtils]: 11: Hoare triple {6321#true} call #t~ret0 := fibo2(~n - 1); {6321#true} is VALID [2020-07-17 22:20:31,768 INFO L280 TraceCheckUtils]: 12: Hoare triple {6321#true} ~n := #in~n; {6472#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-17 22:20:31,769 INFO L280 TraceCheckUtils]: 13: Hoare triple {6472#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {6472#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-17 22:20:31,769 INFO L280 TraceCheckUtils]: 14: Hoare triple {6472#(= fibo2_~n |fibo2_#in~n|)} assume 1 == ~n;#res := 1; {6473#(<= |fibo2_#in~n| 1)} is VALID [2020-07-17 22:20:31,770 INFO L280 TraceCheckUtils]: 15: Hoare triple {6473#(<= |fibo2_#in~n| 1)} assume true; {6473#(<= |fibo2_#in~n| 1)} is VALID [2020-07-17 22:20:31,771 INFO L275 TraceCheckUtils]: 16: Hoare quadruple {6473#(<= |fibo2_#in~n| 1)} {6321#true} #57#return; {6466#(<= fibo1_~n 2)} is VALID [2020-07-17 22:20:31,772 INFO L280 TraceCheckUtils]: 17: Hoare triple {6466#(<= fibo1_~n 2)} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {6466#(<= fibo1_~n 2)} is VALID [2020-07-17 22:20:31,772 INFO L263 TraceCheckUtils]: 18: Hoare triple {6466#(<= fibo1_~n 2)} call #t~ret1 := fibo2(~n - 2); {6321#true} is VALID [2020-07-17 22:20:31,772 INFO L280 TraceCheckUtils]: 19: Hoare triple {6321#true} ~n := #in~n; {6472#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-17 22:20:31,773 INFO L280 TraceCheckUtils]: 20: Hoare triple {6472#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {6474#(<= 1 |fibo2_#in~n|)} is VALID [2020-07-17 22:20:31,774 INFO L280 TraceCheckUtils]: 21: Hoare triple {6474#(<= 1 |fibo2_#in~n|)} assume 1 == ~n;#res := 1; {6474#(<= 1 |fibo2_#in~n|)} is VALID [2020-07-17 22:20:31,774 INFO L280 TraceCheckUtils]: 22: Hoare triple {6474#(<= 1 |fibo2_#in~n|)} assume true; {6474#(<= 1 |fibo2_#in~n|)} is VALID [2020-07-17 22:20:31,775 INFO L275 TraceCheckUtils]: 23: Hoare quadruple {6474#(<= 1 |fibo2_#in~n|)} {6466#(<= fibo1_~n 2)} #59#return; {6322#false} is VALID [2020-07-17 22:20:31,776 INFO L280 TraceCheckUtils]: 24: Hoare triple {6322#false} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647;#res := #t~ret0 + #t~ret1;havoc #t~ret1;havoc #t~ret0; {6322#false} is VALID [2020-07-17 22:20:31,776 INFO L280 TraceCheckUtils]: 25: Hoare triple {6322#false} assume true; {6322#false} is VALID [2020-07-17 22:20:31,776 INFO L275 TraceCheckUtils]: 26: Hoare quadruple {6322#false} {6321#true} #53#return; {6322#false} is VALID [2020-07-17 22:20:31,776 INFO L280 TraceCheckUtils]: 27: Hoare triple {6322#false} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {6322#false} is VALID [2020-07-17 22:20:31,776 INFO L263 TraceCheckUtils]: 28: Hoare triple {6322#false} call #t~ret3 := fibo1(~n - 2); {6321#true} is VALID [2020-07-17 22:20:31,777 INFO L280 TraceCheckUtils]: 29: Hoare triple {6321#true} ~n := #in~n; {6321#true} is VALID [2020-07-17 22:20:31,777 INFO L280 TraceCheckUtils]: 30: Hoare triple {6321#true} assume !(~n < 1); {6321#true} is VALID [2020-07-17 22:20:31,777 INFO L280 TraceCheckUtils]: 31: Hoare triple {6321#true} assume 1 == ~n;#res := 1; {6321#true} is VALID [2020-07-17 22:20:31,777 INFO L280 TraceCheckUtils]: 32: Hoare triple {6321#true} assume true; {6321#true} is VALID [2020-07-17 22:20:31,777 INFO L275 TraceCheckUtils]: 33: Hoare quadruple {6321#true} {6322#false} #55#return; {6322#false} is VALID [2020-07-17 22:20:31,778 INFO L280 TraceCheckUtils]: 34: Hoare triple {6322#false} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647;#res := #t~ret2 + #t~ret3;havoc #t~ret3;havoc #t~ret2; {6322#false} is VALID [2020-07-17 22:20:31,778 INFO L280 TraceCheckUtils]: 35: Hoare triple {6322#false} assume true; {6322#false} is VALID [2020-07-17 22:20:31,778 INFO L275 TraceCheckUtils]: 36: Hoare quadruple {6322#false} {6321#true} #57#return; {6322#false} is VALID [2020-07-17 22:20:31,778 INFO L280 TraceCheckUtils]: 37: Hoare triple {6322#false} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {6322#false} is VALID [2020-07-17 22:20:31,778 INFO L263 TraceCheckUtils]: 38: Hoare triple {6322#false} call #t~ret1 := fibo2(~n - 2); {6321#true} is VALID [2020-07-17 22:20:31,779 INFO L280 TraceCheckUtils]: 39: Hoare triple {6321#true} ~n := #in~n; {6321#true} is VALID [2020-07-17 22:20:31,779 INFO L280 TraceCheckUtils]: 40: Hoare triple {6321#true} assume !(~n < 1); {6321#true} is VALID [2020-07-17 22:20:31,779 INFO L280 TraceCheckUtils]: 41: Hoare triple {6321#true} assume !(1 == ~n); {6321#true} is VALID [2020-07-17 22:20:31,779 INFO L263 TraceCheckUtils]: 42: Hoare triple {6321#true} call #t~ret2 := fibo1(~n - 1); {6321#true} is VALID [2020-07-17 22:20:31,780 INFO L280 TraceCheckUtils]: 43: Hoare triple {6321#true} ~n := #in~n; {6321#true} is VALID [2020-07-17 22:20:31,780 INFO L280 TraceCheckUtils]: 44: Hoare triple {6321#true} assume !(~n < 1); {6321#true} is VALID [2020-07-17 22:20:31,780 INFO L280 TraceCheckUtils]: 45: Hoare triple {6321#true} assume 1 == ~n;#res := 1; {6321#true} is VALID [2020-07-17 22:20:31,780 INFO L280 TraceCheckUtils]: 46: Hoare triple {6321#true} assume true; {6321#true} is VALID [2020-07-17 22:20:31,780 INFO L275 TraceCheckUtils]: 47: Hoare quadruple {6321#true} {6321#true} #53#return; {6321#true} is VALID [2020-07-17 22:20:31,781 INFO L280 TraceCheckUtils]: 48: Hoare triple {6321#true} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {6321#true} is VALID [2020-07-17 22:20:31,781 INFO L263 TraceCheckUtils]: 49: Hoare triple {6321#true} call #t~ret3 := fibo1(~n - 2); {6321#true} is VALID [2020-07-17 22:20:31,781 INFO L280 TraceCheckUtils]: 50: Hoare triple {6321#true} ~n := #in~n; {6321#true} is VALID [2020-07-17 22:20:31,781 INFO L280 TraceCheckUtils]: 51: Hoare triple {6321#true} assume ~n < 1;#res := 0; {6321#true} is VALID [2020-07-17 22:20:31,782 INFO L280 TraceCheckUtils]: 52: Hoare triple {6321#true} assume true; {6321#true} is VALID [2020-07-17 22:20:31,782 INFO L275 TraceCheckUtils]: 53: Hoare quadruple {6321#true} {6321#true} #55#return; {6321#true} is VALID [2020-07-17 22:20:31,782 INFO L280 TraceCheckUtils]: 54: Hoare triple {6321#true} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647;#res := #t~ret2 + #t~ret3;havoc #t~ret3;havoc #t~ret2; {6321#true} is VALID [2020-07-17 22:20:31,782 INFO L280 TraceCheckUtils]: 55: Hoare triple {6321#true} assume true; {6321#true} is VALID [2020-07-17 22:20:31,782 INFO L275 TraceCheckUtils]: 56: Hoare quadruple {6321#true} {6322#false} #59#return; {6322#false} is VALID [2020-07-17 22:20:31,782 INFO L280 TraceCheckUtils]: 57: Hoare triple {6322#false} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647;#res := #t~ret0 + #t~ret1;havoc #t~ret1;havoc #t~ret0; {6322#false} is VALID [2020-07-17 22:20:31,783 INFO L280 TraceCheckUtils]: 58: Hoare triple {6322#false} assume true; {6322#false} is VALID [2020-07-17 22:20:31,783 INFO L275 TraceCheckUtils]: 59: Hoare quadruple {6322#false} {6325#(<= main_~x~0 4)} #51#return; {6322#false} is VALID [2020-07-17 22:20:31,785 INFO L263 TraceCheckUtils]: 0: Hoare triple {6321#true} call ULTIMATE.init(); {6321#true} is VALID [2020-07-17 22:20:31,786 INFO L280 TraceCheckUtils]: 1: Hoare triple {6321#true} assume true; {6321#true} is VALID [2020-07-17 22:20:31,786 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {6321#true} {6321#true} #47#return; {6321#true} is VALID [2020-07-17 22:20:31,786 INFO L263 TraceCheckUtils]: 3: Hoare triple {6321#true} call #t~ret5 := main(); {6321#true} is VALID [2020-07-17 22:20:31,788 INFO L280 TraceCheckUtils]: 4: Hoare triple {6321#true} ~x~0 := 4; {6325#(<= main_~x~0 4)} is VALID [2020-07-17 22:20:31,788 INFO L263 TraceCheckUtils]: 5: Hoare triple {6325#(<= main_~x~0 4)} call #t~ret4 := fibo1(~x~0); {6321#true} is VALID [2020-07-17 22:20:31,788 INFO L280 TraceCheckUtils]: 6: Hoare triple {6321#true} ~n := #in~n; {6321#true} is VALID [2020-07-17 22:20:31,789 INFO L280 TraceCheckUtils]: 7: Hoare triple {6321#true} assume !(~n < 1); {6321#true} is VALID [2020-07-17 22:20:31,789 INFO L280 TraceCheckUtils]: 8: Hoare triple {6321#true} assume !(1 == ~n); {6321#true} is VALID [2020-07-17 22:20:31,789 INFO L263 TraceCheckUtils]: 9: Hoare triple {6321#true} call #t~ret0 := fibo2(~n - 1); {6321#true} is VALID [2020-07-17 22:20:31,789 INFO L280 TraceCheckUtils]: 10: Hoare triple {6321#true} ~n := #in~n; {6321#true} is VALID [2020-07-17 22:20:31,789 INFO L280 TraceCheckUtils]: 11: Hoare triple {6321#true} assume !(~n < 1); {6321#true} is VALID [2020-07-17 22:20:31,789 INFO L280 TraceCheckUtils]: 12: Hoare triple {6321#true} assume !(1 == ~n); {6321#true} is VALID [2020-07-17 22:20:31,790 INFO L263 TraceCheckUtils]: 13: Hoare triple {6321#true} call #t~ret2 := fibo1(~n - 1); {6321#true} is VALID [2020-07-17 22:20:31,790 INFO L280 TraceCheckUtils]: 14: Hoare triple {6321#true} ~n := #in~n; {6321#true} is VALID [2020-07-17 22:20:31,790 INFO L280 TraceCheckUtils]: 15: Hoare triple {6321#true} assume !(~n < 1); {6321#true} is VALID [2020-07-17 22:20:31,790 INFO L280 TraceCheckUtils]: 16: Hoare triple {6321#true} assume !(1 == ~n); {6321#true} is VALID [2020-07-17 22:20:31,790 INFO L263 TraceCheckUtils]: 17: Hoare triple {6321#true} call #t~ret0 := fibo2(~n - 1); {6321#true} is VALID [2020-07-17 22:20:31,791 INFO L280 TraceCheckUtils]: 18: Hoare triple {6321#true} ~n := #in~n; {6472#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-17 22:20:31,792 INFO L280 TraceCheckUtils]: 19: Hoare triple {6472#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {6472#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-17 22:20:31,793 INFO L280 TraceCheckUtils]: 20: Hoare triple {6472#(= fibo2_~n |fibo2_#in~n|)} assume 1 == ~n;#res := 1; {6473#(<= |fibo2_#in~n| 1)} is VALID [2020-07-17 22:20:31,793 INFO L280 TraceCheckUtils]: 21: Hoare triple {6473#(<= |fibo2_#in~n| 1)} assume true; {6473#(<= |fibo2_#in~n| 1)} is VALID [2020-07-17 22:20:31,794 INFO L275 TraceCheckUtils]: 22: Hoare quadruple {6473#(<= |fibo2_#in~n| 1)} {6321#true} #57#return; {6466#(<= fibo1_~n 2)} is VALID [2020-07-17 22:20:31,795 INFO L280 TraceCheckUtils]: 23: Hoare triple {6466#(<= fibo1_~n 2)} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {6466#(<= fibo1_~n 2)} is VALID [2020-07-17 22:20:31,795 INFO L263 TraceCheckUtils]: 24: Hoare triple {6466#(<= fibo1_~n 2)} call #t~ret1 := fibo2(~n - 2); {6321#true} is VALID [2020-07-17 22:20:31,796 INFO L280 TraceCheckUtils]: 25: Hoare triple {6321#true} ~n := #in~n; {6472#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-17 22:20:31,796 INFO L280 TraceCheckUtils]: 26: Hoare triple {6472#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {6474#(<= 1 |fibo2_#in~n|)} is VALID [2020-07-17 22:20:31,797 INFO L280 TraceCheckUtils]: 27: Hoare triple {6474#(<= 1 |fibo2_#in~n|)} assume 1 == ~n;#res := 1; {6474#(<= 1 |fibo2_#in~n|)} is VALID [2020-07-17 22:20:31,798 INFO L280 TraceCheckUtils]: 28: Hoare triple {6474#(<= 1 |fibo2_#in~n|)} assume true; {6474#(<= 1 |fibo2_#in~n|)} is VALID [2020-07-17 22:20:31,799 INFO L275 TraceCheckUtils]: 29: Hoare quadruple {6474#(<= 1 |fibo2_#in~n|)} {6466#(<= fibo1_~n 2)} #59#return; {6322#false} is VALID [2020-07-17 22:20:31,799 INFO L280 TraceCheckUtils]: 30: Hoare triple {6322#false} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647;#res := #t~ret0 + #t~ret1;havoc #t~ret1;havoc #t~ret0; {6322#false} is VALID [2020-07-17 22:20:31,799 INFO L280 TraceCheckUtils]: 31: Hoare triple {6322#false} assume true; {6322#false} is VALID [2020-07-17 22:20:31,800 INFO L275 TraceCheckUtils]: 32: Hoare quadruple {6322#false} {6321#true} #53#return; {6322#false} is VALID [2020-07-17 22:20:31,800 INFO L280 TraceCheckUtils]: 33: Hoare triple {6322#false} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {6322#false} is VALID [2020-07-17 22:20:31,800 INFO L263 TraceCheckUtils]: 34: Hoare triple {6322#false} call #t~ret3 := fibo1(~n - 2); {6321#true} is VALID [2020-07-17 22:20:31,800 INFO L280 TraceCheckUtils]: 35: Hoare triple {6321#true} ~n := #in~n; {6321#true} is VALID [2020-07-17 22:20:31,800 INFO L280 TraceCheckUtils]: 36: Hoare triple {6321#true} assume !(~n < 1); {6321#true} is VALID [2020-07-17 22:20:31,801 INFO L280 TraceCheckUtils]: 37: Hoare triple {6321#true} assume 1 == ~n;#res := 1; {6321#true} is VALID [2020-07-17 22:20:31,801 INFO L280 TraceCheckUtils]: 38: Hoare triple {6321#true} assume true; {6321#true} is VALID [2020-07-17 22:20:31,801 INFO L275 TraceCheckUtils]: 39: Hoare quadruple {6321#true} {6322#false} #55#return; {6322#false} is VALID [2020-07-17 22:20:31,801 INFO L280 TraceCheckUtils]: 40: Hoare triple {6322#false} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647;#res := #t~ret2 + #t~ret3;havoc #t~ret3;havoc #t~ret2; {6322#false} is VALID [2020-07-17 22:20:31,801 INFO L280 TraceCheckUtils]: 41: Hoare triple {6322#false} assume true; {6322#false} is VALID [2020-07-17 22:20:31,802 INFO L275 TraceCheckUtils]: 42: Hoare quadruple {6322#false} {6321#true} #57#return; {6322#false} is VALID [2020-07-17 22:20:31,802 INFO L280 TraceCheckUtils]: 43: Hoare triple {6322#false} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {6322#false} is VALID [2020-07-17 22:20:31,802 INFO L263 TraceCheckUtils]: 44: Hoare triple {6322#false} call #t~ret1 := fibo2(~n - 2); {6321#true} is VALID [2020-07-17 22:20:31,802 INFO L280 TraceCheckUtils]: 45: Hoare triple {6321#true} ~n := #in~n; {6321#true} is VALID [2020-07-17 22:20:31,802 INFO L280 TraceCheckUtils]: 46: Hoare triple {6321#true} assume !(~n < 1); {6321#true} is VALID [2020-07-17 22:20:31,803 INFO L280 TraceCheckUtils]: 47: Hoare triple {6321#true} assume !(1 == ~n); {6321#true} is VALID [2020-07-17 22:20:31,803 INFO L263 TraceCheckUtils]: 48: Hoare triple {6321#true} call #t~ret2 := fibo1(~n - 1); {6321#true} is VALID [2020-07-17 22:20:31,803 INFO L280 TraceCheckUtils]: 49: Hoare triple {6321#true} ~n := #in~n; {6321#true} is VALID [2020-07-17 22:20:31,803 INFO L280 TraceCheckUtils]: 50: Hoare triple {6321#true} assume !(~n < 1); {6321#true} is VALID [2020-07-17 22:20:31,804 INFO L280 TraceCheckUtils]: 51: Hoare triple {6321#true} assume 1 == ~n;#res := 1; {6321#true} is VALID [2020-07-17 22:20:31,804 INFO L280 TraceCheckUtils]: 52: Hoare triple {6321#true} assume true; {6321#true} is VALID [2020-07-17 22:20:31,804 INFO L275 TraceCheckUtils]: 53: Hoare quadruple {6321#true} {6321#true} #53#return; {6321#true} is VALID [2020-07-17 22:20:31,804 INFO L280 TraceCheckUtils]: 54: Hoare triple {6321#true} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {6321#true} is VALID [2020-07-17 22:20:31,804 INFO L263 TraceCheckUtils]: 55: Hoare triple {6321#true} call #t~ret3 := fibo1(~n - 2); {6321#true} is VALID [2020-07-17 22:20:31,805 INFO L280 TraceCheckUtils]: 56: Hoare triple {6321#true} ~n := #in~n; {6321#true} is VALID [2020-07-17 22:20:31,805 INFO L280 TraceCheckUtils]: 57: Hoare triple {6321#true} assume ~n < 1;#res := 0; {6321#true} is VALID [2020-07-17 22:20:31,805 INFO L280 TraceCheckUtils]: 58: Hoare triple {6321#true} assume true; {6321#true} is VALID [2020-07-17 22:20:31,805 INFO L275 TraceCheckUtils]: 59: Hoare quadruple {6321#true} {6321#true} #55#return; {6321#true} is VALID [2020-07-17 22:20:31,805 INFO L280 TraceCheckUtils]: 60: Hoare triple {6321#true} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647;#res := #t~ret2 + #t~ret3;havoc #t~ret3;havoc #t~ret2; {6321#true} is VALID [2020-07-17 22:20:31,806 INFO L280 TraceCheckUtils]: 61: Hoare triple {6321#true} assume true; {6321#true} is VALID [2020-07-17 22:20:31,806 INFO L275 TraceCheckUtils]: 62: Hoare quadruple {6321#true} {6322#false} #59#return; {6322#false} is VALID [2020-07-17 22:20:31,806 INFO L280 TraceCheckUtils]: 63: Hoare triple {6322#false} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647;#res := #t~ret0 + #t~ret1;havoc #t~ret1;havoc #t~ret0; {6322#false} is VALID [2020-07-17 22:20:31,806 INFO L280 TraceCheckUtils]: 64: Hoare triple {6322#false} assume true; {6322#false} is VALID [2020-07-17 22:20:31,806 INFO L275 TraceCheckUtils]: 65: Hoare quadruple {6322#false} {6325#(<= main_~x~0 4)} #51#return; {6322#false} is VALID [2020-07-17 22:20:31,807 INFO L280 TraceCheckUtils]: 66: Hoare triple {6322#false} assume -2147483648 <= #t~ret4 && #t~ret4 <= 2147483647;~result~0 := #t~ret4;havoc #t~ret4; {6322#false} is VALID [2020-07-17 22:20:31,807 INFO L280 TraceCheckUtils]: 67: Hoare triple {6322#false} assume 3 != ~result~0; {6322#false} is VALID [2020-07-17 22:20:31,807 INFO L280 TraceCheckUtils]: 68: Hoare triple {6322#false} assume !false; {6322#false} is VALID [2020-07-17 22:20:31,810 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 16 proven. 22 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2020-07-17 22:20:31,816 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739848055] [2020-07-17 22:20:31,817 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [828357793] [2020-07-17 22:20:31,817 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 22:20:31,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:20:31,862 INFO L264 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-17 22:20:31,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:20:31,882 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-17 22:20:32,182 INFO L263 TraceCheckUtils]: 0: Hoare triple {6321#true} call ULTIMATE.init(); {6321#true} is VALID [2020-07-17 22:20:32,183 INFO L280 TraceCheckUtils]: 1: Hoare triple {6321#true} assume true; {6321#true} is VALID [2020-07-17 22:20:32,183 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {6321#true} {6321#true} #47#return; {6321#true} is VALID [2020-07-17 22:20:32,183 INFO L263 TraceCheckUtils]: 3: Hoare triple {6321#true} call #t~ret5 := main(); {6321#true} is VALID [2020-07-17 22:20:32,184 INFO L280 TraceCheckUtils]: 4: Hoare triple {6321#true} ~x~0 := 4; {6325#(<= main_~x~0 4)} is VALID [2020-07-17 22:20:32,185 INFO L263 TraceCheckUtils]: 5: Hoare triple {6325#(<= main_~x~0 4)} call #t~ret4 := fibo1(~x~0); {6321#true} is VALID [2020-07-17 22:20:32,186 INFO L280 TraceCheckUtils]: 6: Hoare triple {6321#true} ~n := #in~n; {6505#(<= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-17 22:20:32,187 INFO L280 TraceCheckUtils]: 7: Hoare triple {6505#(<= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {6505#(<= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-17 22:20:32,187 INFO L280 TraceCheckUtils]: 8: Hoare triple {6505#(<= fibo1_~n |fibo1_#in~n|)} assume !(1 == ~n); {6505#(<= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-17 22:20:32,188 INFO L263 TraceCheckUtils]: 9: Hoare triple {6505#(<= fibo1_~n |fibo1_#in~n|)} call #t~ret0 := fibo2(~n - 1); {6321#true} is VALID [2020-07-17 22:20:32,188 INFO L280 TraceCheckUtils]: 10: Hoare triple {6321#true} ~n := #in~n; {6518#(<= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-17 22:20:32,189 INFO L280 TraceCheckUtils]: 11: Hoare triple {6518#(<= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {6518#(<= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-17 22:20:32,191 INFO L280 TraceCheckUtils]: 12: Hoare triple {6518#(<= fibo2_~n |fibo2_#in~n|)} assume !(1 == ~n); {6518#(<= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-17 22:20:32,191 INFO L263 TraceCheckUtils]: 13: Hoare triple {6518#(<= fibo2_~n |fibo2_#in~n|)} call #t~ret2 := fibo1(~n - 1); {6321#true} is VALID [2020-07-17 22:20:32,192 INFO L280 TraceCheckUtils]: 14: Hoare triple {6321#true} ~n := #in~n; {6505#(<= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-17 22:20:32,193 INFO L280 TraceCheckUtils]: 15: Hoare triple {6505#(<= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {6505#(<= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-17 22:20:32,194 INFO L280 TraceCheckUtils]: 16: Hoare triple {6505#(<= fibo1_~n |fibo1_#in~n|)} assume !(1 == ~n); {6505#(<= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-17 22:20:32,195 INFO L263 TraceCheckUtils]: 17: Hoare triple {6505#(<= fibo1_~n |fibo1_#in~n|)} call #t~ret0 := fibo2(~n - 1); {6321#true} is VALID [2020-07-17 22:20:32,195 INFO L280 TraceCheckUtils]: 18: Hoare triple {6321#true} ~n := #in~n; {6321#true} is VALID [2020-07-17 22:20:32,195 INFO L280 TraceCheckUtils]: 19: Hoare triple {6321#true} assume !(~n < 1); {6321#true} is VALID [2020-07-17 22:20:32,196 INFO L280 TraceCheckUtils]: 20: Hoare triple {6321#true} assume 1 == ~n;#res := 1; {6321#true} is VALID [2020-07-17 22:20:32,196 INFO L280 TraceCheckUtils]: 21: Hoare triple {6321#true} assume true; {6321#true} is VALID [2020-07-17 22:20:32,198 INFO L275 TraceCheckUtils]: 22: Hoare quadruple {6321#true} {6505#(<= fibo1_~n |fibo1_#in~n|)} #57#return; {6505#(<= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-17 22:20:32,199 INFO L280 TraceCheckUtils]: 23: Hoare triple {6505#(<= fibo1_~n |fibo1_#in~n|)} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {6505#(<= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-17 22:20:32,200 INFO L263 TraceCheckUtils]: 24: Hoare triple {6505#(<= fibo1_~n |fibo1_#in~n|)} call #t~ret1 := fibo2(~n - 2); {6321#true} is VALID [2020-07-17 22:20:32,200 INFO L280 TraceCheckUtils]: 25: Hoare triple {6321#true} ~n := #in~n; {6518#(<= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-17 22:20:32,202 INFO L280 TraceCheckUtils]: 26: Hoare triple {6518#(<= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {6474#(<= 1 |fibo2_#in~n|)} is VALID [2020-07-17 22:20:32,203 INFO L280 TraceCheckUtils]: 27: Hoare triple {6474#(<= 1 |fibo2_#in~n|)} assume 1 == ~n;#res := 1; {6474#(<= 1 |fibo2_#in~n|)} is VALID [2020-07-17 22:20:32,203 INFO L280 TraceCheckUtils]: 28: Hoare triple {6474#(<= 1 |fibo2_#in~n|)} assume true; {6474#(<= 1 |fibo2_#in~n|)} is VALID [2020-07-17 22:20:32,205 INFO L275 TraceCheckUtils]: 29: Hoare quadruple {6474#(<= 1 |fibo2_#in~n|)} {6505#(<= fibo1_~n |fibo1_#in~n|)} #59#return; {6576#(<= 3 |fibo1_#in~n|)} is VALID [2020-07-17 22:20:32,206 INFO L280 TraceCheckUtils]: 30: Hoare triple {6576#(<= 3 |fibo1_#in~n|)} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647;#res := #t~ret0 + #t~ret1;havoc #t~ret1;havoc #t~ret0; {6576#(<= 3 |fibo1_#in~n|)} is VALID [2020-07-17 22:20:32,207 INFO L280 TraceCheckUtils]: 31: Hoare triple {6576#(<= 3 |fibo1_#in~n|)} assume true; {6576#(<= 3 |fibo1_#in~n|)} is VALID [2020-07-17 22:20:32,208 INFO L275 TraceCheckUtils]: 32: Hoare quadruple {6576#(<= 3 |fibo1_#in~n|)} {6518#(<= fibo2_~n |fibo2_#in~n|)} #53#return; {6586#(<= 4 |fibo2_#in~n|)} is VALID [2020-07-17 22:20:32,209 INFO L280 TraceCheckUtils]: 33: Hoare triple {6586#(<= 4 |fibo2_#in~n|)} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {6586#(<= 4 |fibo2_#in~n|)} is VALID [2020-07-17 22:20:32,209 INFO L263 TraceCheckUtils]: 34: Hoare triple {6586#(<= 4 |fibo2_#in~n|)} call #t~ret3 := fibo1(~n - 2); {6321#true} is VALID [2020-07-17 22:20:32,209 INFO L280 TraceCheckUtils]: 35: Hoare triple {6321#true} ~n := #in~n; {6321#true} is VALID [2020-07-17 22:20:32,210 INFO L280 TraceCheckUtils]: 36: Hoare triple {6321#true} assume !(~n < 1); {6321#true} is VALID [2020-07-17 22:20:32,210 INFO L280 TraceCheckUtils]: 37: Hoare triple {6321#true} assume 1 == ~n;#res := 1; {6321#true} is VALID [2020-07-17 22:20:32,210 INFO L280 TraceCheckUtils]: 38: Hoare triple {6321#true} assume true; {6321#true} is VALID [2020-07-17 22:20:32,211 INFO L275 TraceCheckUtils]: 39: Hoare quadruple {6321#true} {6586#(<= 4 |fibo2_#in~n|)} #55#return; {6586#(<= 4 |fibo2_#in~n|)} is VALID [2020-07-17 22:20:32,212 INFO L280 TraceCheckUtils]: 40: Hoare triple {6586#(<= 4 |fibo2_#in~n|)} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647;#res := #t~ret2 + #t~ret3;havoc #t~ret3;havoc #t~ret2; {6586#(<= 4 |fibo2_#in~n|)} is VALID [2020-07-17 22:20:32,212 INFO L280 TraceCheckUtils]: 41: Hoare triple {6586#(<= 4 |fibo2_#in~n|)} assume true; {6586#(<= 4 |fibo2_#in~n|)} is VALID [2020-07-17 22:20:32,213 INFO L275 TraceCheckUtils]: 42: Hoare quadruple {6586#(<= 4 |fibo2_#in~n|)} {6505#(<= fibo1_~n |fibo1_#in~n|)} #57#return; {6617#(<= 5 |fibo1_#in~n|)} is VALID [2020-07-17 22:20:32,214 INFO L280 TraceCheckUtils]: 43: Hoare triple {6617#(<= 5 |fibo1_#in~n|)} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {6617#(<= 5 |fibo1_#in~n|)} is VALID [2020-07-17 22:20:32,214 INFO L263 TraceCheckUtils]: 44: Hoare triple {6617#(<= 5 |fibo1_#in~n|)} call #t~ret1 := fibo2(~n - 2); {6321#true} is VALID [2020-07-17 22:20:32,215 INFO L280 TraceCheckUtils]: 45: Hoare triple {6321#true} ~n := #in~n; {6321#true} is VALID [2020-07-17 22:20:32,215 INFO L280 TraceCheckUtils]: 46: Hoare triple {6321#true} assume !(~n < 1); {6321#true} is VALID [2020-07-17 22:20:32,215 INFO L280 TraceCheckUtils]: 47: Hoare triple {6321#true} assume !(1 == ~n); {6321#true} is VALID [2020-07-17 22:20:32,215 INFO L263 TraceCheckUtils]: 48: Hoare triple {6321#true} call #t~ret2 := fibo1(~n - 1); {6321#true} is VALID [2020-07-17 22:20:32,216 INFO L280 TraceCheckUtils]: 49: Hoare triple {6321#true} ~n := #in~n; {6321#true} is VALID [2020-07-17 22:20:32,216 INFO L280 TraceCheckUtils]: 50: Hoare triple {6321#true} assume !(~n < 1); {6321#true} is VALID [2020-07-17 22:20:32,216 INFO L280 TraceCheckUtils]: 51: Hoare triple {6321#true} assume 1 == ~n;#res := 1; {6321#true} is VALID [2020-07-17 22:20:32,216 INFO L280 TraceCheckUtils]: 52: Hoare triple {6321#true} assume true; {6321#true} is VALID [2020-07-17 22:20:32,216 INFO L275 TraceCheckUtils]: 53: Hoare quadruple {6321#true} {6321#true} #53#return; {6321#true} is VALID [2020-07-17 22:20:32,217 INFO L280 TraceCheckUtils]: 54: Hoare triple {6321#true} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {6321#true} is VALID [2020-07-17 22:20:32,217 INFO L263 TraceCheckUtils]: 55: Hoare triple {6321#true} call #t~ret3 := fibo1(~n - 2); {6321#true} is VALID [2020-07-17 22:20:32,217 INFO L280 TraceCheckUtils]: 56: Hoare triple {6321#true} ~n := #in~n; {6321#true} is VALID [2020-07-17 22:20:32,218 INFO L280 TraceCheckUtils]: 57: Hoare triple {6321#true} assume ~n < 1;#res := 0; {6321#true} is VALID [2020-07-17 22:20:32,218 INFO L280 TraceCheckUtils]: 58: Hoare triple {6321#true} assume true; {6321#true} is VALID [2020-07-17 22:20:32,218 INFO L275 TraceCheckUtils]: 59: Hoare quadruple {6321#true} {6321#true} #55#return; {6321#true} is VALID [2020-07-17 22:20:32,219 INFO L280 TraceCheckUtils]: 60: Hoare triple {6321#true} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647;#res := #t~ret2 + #t~ret3;havoc #t~ret3;havoc #t~ret2; {6321#true} is VALID [2020-07-17 22:20:32,219 INFO L280 TraceCheckUtils]: 61: Hoare triple {6321#true} assume true; {6321#true} is VALID [2020-07-17 22:20:32,221 INFO L275 TraceCheckUtils]: 62: Hoare quadruple {6321#true} {6617#(<= 5 |fibo1_#in~n|)} #59#return; {6617#(<= 5 |fibo1_#in~n|)} is VALID [2020-07-17 22:20:32,222 INFO L280 TraceCheckUtils]: 63: Hoare triple {6617#(<= 5 |fibo1_#in~n|)} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647;#res := #t~ret0 + #t~ret1;havoc #t~ret1;havoc #t~ret0; {6617#(<= 5 |fibo1_#in~n|)} is VALID [2020-07-17 22:20:32,223 INFO L280 TraceCheckUtils]: 64: Hoare triple {6617#(<= 5 |fibo1_#in~n|)} assume true; {6617#(<= 5 |fibo1_#in~n|)} is VALID [2020-07-17 22:20:32,224 INFO L275 TraceCheckUtils]: 65: Hoare quadruple {6617#(<= 5 |fibo1_#in~n|)} {6325#(<= main_~x~0 4)} #51#return; {6322#false} is VALID [2020-07-17 22:20:32,224 INFO L280 TraceCheckUtils]: 66: Hoare triple {6322#false} assume -2147483648 <= #t~ret4 && #t~ret4 <= 2147483647;~result~0 := #t~ret4;havoc #t~ret4; {6322#false} is VALID [2020-07-17 22:20:32,224 INFO L280 TraceCheckUtils]: 67: Hoare triple {6322#false} assume 3 != ~result~0; {6322#false} is VALID [2020-07-17 22:20:32,224 INFO L280 TraceCheckUtils]: 68: Hoare triple {6322#false} assume !false; {6322#false} is VALID [2020-07-17 22:20:32,230 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 17 proven. 33 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2020-07-17 22:20:32,230 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-17 22:20:32,230 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9] total 12 [2020-07-17 22:20:32,231 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712398325] [2020-07-17 22:20:32,232 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 69 [2020-07-17 22:20:32,234 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-17 22:20:32,234 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 12 states. [2020-07-17 22:20:32,334 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 79 edges. 79 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:20:32,334 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-17 22:20:32,335 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 22:20:32,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-17 22:20:32,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-07-17 22:20:32,336 INFO L87 Difference]: Start difference. First operand 90 states and 122 transitions. Second operand 12 states. [2020-07-17 22:20:33,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:20:33,278 INFO L93 Difference]: Finished difference Result 162 states and 237 transitions. [2020-07-17 22:20:33,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-07-17 22:20:33,278 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 69 [2020-07-17 22:20:33,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 22:20:33,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-07-17 22:20:33,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 93 transitions. [2020-07-17 22:20:33,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-07-17 22:20:33,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 93 transitions. [2020-07-17 22:20:33,283 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 13 states and 93 transitions. [2020-07-17 22:20:33,414 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 93 edges. 93 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:20:33,415 INFO L225 Difference]: With dead ends: 162 [2020-07-17 22:20:33,415 INFO L226 Difference]: Without dead ends: 0 [2020-07-17 22:20:33,417 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2020-07-17 22:20:33,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-17 22:20:33,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-17 22:20:33,417 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-17 22:20:33,417 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2020-07-17 22:20:33,417 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-17 22:20:33,417 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-17 22:20:33,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:20:33,418 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-17 22:20:33,418 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-17 22:20:33,418 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:20:33,418 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:20:33,418 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-17 22:20:33,418 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-17 22:20:33,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:20:33,418 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-17 22:20:33,419 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-17 22:20:33,419 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:20:33,419 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:20:33,419 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-17 22:20:33,419 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-17 22:20:33,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-17 22:20:33,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-17 22:20:33,419 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 69 [2020-07-17 22:20:33,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 22:20:33,420 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-17 22:20:33,420 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-17 22:20:33,420 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-17 22:20:33,420 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:20:33,621 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 22:20:33,625 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-17 22:20:34,309 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 17 [2020-07-17 22:20:34,629 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 24 [2020-07-17 22:20:34,636 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-07-17 22:20:34,637 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-17 22:20:34,637 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-17 22:20:34,637 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-17 22:20:34,637 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-17 22:20:34,637 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-17 22:20:34,638 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 39) no Hoare annotation was computed. [2020-07-17 22:20:34,638 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 35 42) the Hoare annotation is: true [2020-07-17 22:20:34,638 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 35 42) no Hoare annotation was computed. [2020-07-17 22:20:34,638 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 35 42) no Hoare annotation was computed. [2020-07-17 22:20:34,638 INFO L268 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-07-17 22:20:34,638 INFO L268 CegarLoopResult]: For program point L38(lines 38 40) no Hoare annotation was computed. [2020-07-17 22:20:34,639 INFO L264 CegarLoopResult]: At program point L37(line 37) the Hoare annotation is: (and (<= 4 main_~x~0) (<= main_~x~0 4)) [2020-07-17 22:20:34,639 INFO L268 CegarLoopResult]: For program point L37-1(line 37) no Hoare annotation was computed. [2020-07-17 22:20:34,639 INFO L268 CegarLoopResult]: For program point L38-2(lines 38 40) no Hoare annotation was computed. [2020-07-17 22:20:34,639 INFO L271 CegarLoopResult]: At program point fibo2ENTRY(lines 17 25) the Hoare annotation is: true [2020-07-17 22:20:34,639 INFO L264 CegarLoopResult]: At program point L23(line 23) the Hoare annotation is: (and (not (<= |fibo2_#in~n| 1)) (= fibo2_~n |fibo2_#in~n|)) [2020-07-17 22:20:34,639 INFO L268 CegarLoopResult]: For program point L23-1(line 23) no Hoare annotation was computed. [2020-07-17 22:20:34,640 INFO L264 CegarLoopResult]: At program point L23-2(line 23) the Hoare annotation is: (and (not (<= |fibo2_#in~n| 1)) (or (and (<= |fibo2_#in~n| 2) (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|)) (not (<= |fibo2_#in~n| 3))) (= fibo2_~n |fibo2_#in~n|)) [2020-07-17 22:20:34,640 INFO L268 CegarLoopResult]: For program point L20(lines 20 24) no Hoare annotation was computed. [2020-07-17 22:20:34,640 INFO L268 CegarLoopResult]: For program point L23-3(line 23) no Hoare annotation was computed. [2020-07-17 22:20:34,640 INFO L268 CegarLoopResult]: For program point L18(lines 18 24) no Hoare annotation was computed. [2020-07-17 22:20:34,640 INFO L268 CegarLoopResult]: For program point fibo2FINAL(lines 17 25) no Hoare annotation was computed. [2020-07-17 22:20:34,640 INFO L268 CegarLoopResult]: For program point fibo2EXIT(lines 17 25) no Hoare annotation was computed. [2020-07-17 22:20:34,640 INFO L271 CegarLoopResult]: At program point fibo1ENTRY(lines 7 15) the Hoare annotation is: true [2020-07-17 22:20:34,640 INFO L264 CegarLoopResult]: At program point L13(line 13) the Hoare annotation is: (and (not (<= |fibo1_#in~n| 2)) (= fibo1_~n |fibo1_#in~n|)) [2020-07-17 22:20:34,641 INFO L268 CegarLoopResult]: For program point L13-1(line 13) no Hoare annotation was computed. [2020-07-17 22:20:34,641 INFO L264 CegarLoopResult]: At program point L13-2(line 13) the Hoare annotation is: (and (let ((.cse0 (= fibo1_~n |fibo1_#in~n|))) (or (and (<= 5 |fibo1_#in~n|) .cse0) (and (<= |fibo1_#t~ret0| 2) (<= 2 |fibo1_#t~ret0|) .cse0) (and .cse0 (<= |fibo1_#in~n| 3)))) (or (and (<= 1 |fibo1_#t~ret0|) (<= 3 fibo1_~n) (<= |fibo1_#t~ret0| 1)) (<= 4 fibo1_~n))) [2020-07-17 22:20:34,641 INFO L268 CegarLoopResult]: For program point fibo1FINAL(lines 7 15) no Hoare annotation was computed. [2020-07-17 22:20:34,641 INFO L268 CegarLoopResult]: For program point L10(lines 10 14) no Hoare annotation was computed. [2020-07-17 22:20:34,641 INFO L268 CegarLoopResult]: For program point L13-3(line 13) no Hoare annotation was computed. [2020-07-17 22:20:34,641 INFO L268 CegarLoopResult]: For program point L8(lines 8 14) no Hoare annotation was computed. [2020-07-17 22:20:34,641 INFO L268 CegarLoopResult]: For program point fibo1EXIT(lines 7 15) no Hoare annotation was computed. [2020-07-17 22:20:34,647 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-17 22:20:34,651 WARN L170 areAnnotationChecker]: L18 has no Hoare annotation [2020-07-17 22:20:34,651 WARN L170 areAnnotationChecker]: L8 has no Hoare annotation [2020-07-17 22:20:34,651 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-17 22:20:34,651 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-17 22:20:34,652 WARN L170 areAnnotationChecker]: L37-1 has no Hoare annotation [2020-07-17 22:20:34,652 WARN L170 areAnnotationChecker]: L18 has no Hoare annotation [2020-07-17 22:20:34,652 WARN L170 areAnnotationChecker]: L18 has no Hoare annotation [2020-07-17 22:20:34,652 WARN L170 areAnnotationChecker]: L8 has no Hoare annotation [2020-07-17 22:20:34,652 WARN L170 areAnnotationChecker]: L8 has no Hoare annotation [2020-07-17 22:20:34,652 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-17 22:20:34,652 WARN L170 areAnnotationChecker]: L37-1 has no Hoare annotation [2020-07-17 22:20:34,652 WARN L170 areAnnotationChecker]: fibo2FINAL has no Hoare annotation [2020-07-17 22:20:34,652 WARN L170 areAnnotationChecker]: L20 has no Hoare annotation [2020-07-17 22:20:34,652 WARN L170 areAnnotationChecker]: L20 has no Hoare annotation [2020-07-17 22:20:34,652 WARN L170 areAnnotationChecker]: fibo1FINAL has no Hoare annotation [2020-07-17 22:20:34,652 WARN L170 areAnnotationChecker]: L10 has no Hoare annotation [2020-07-17 22:20:34,652 WARN L170 areAnnotationChecker]: L10 has no Hoare annotation [2020-07-17 22:20:34,652 WARN L170 areAnnotationChecker]: L38 has no Hoare annotation [2020-07-17 22:20:34,653 WARN L170 areAnnotationChecker]: L38 has no Hoare annotation [2020-07-17 22:20:34,653 WARN L170 areAnnotationChecker]: fibo2EXIT has no Hoare annotation [2020-07-17 22:20:34,653 WARN L170 areAnnotationChecker]: fibo2EXIT has no Hoare annotation [2020-07-17 22:20:34,653 WARN L170 areAnnotationChecker]: L23-1 has no Hoare annotation [2020-07-17 22:20:34,653 WARN L170 areAnnotationChecker]: fibo1EXIT has no Hoare annotation [2020-07-17 22:20:34,653 WARN L170 areAnnotationChecker]: fibo1EXIT has no Hoare annotation [2020-07-17 22:20:34,653 WARN L170 areAnnotationChecker]: fibo1EXIT has no Hoare annotation [2020-07-17 22:20:34,653 WARN L170 areAnnotationChecker]: L13-1 has no Hoare annotation [2020-07-17 22:20:34,653 WARN L170 areAnnotationChecker]: L39 has no Hoare annotation [2020-07-17 22:20:34,653 WARN L170 areAnnotationChecker]: L39 has no Hoare annotation [2020-07-17 22:20:34,653 WARN L170 areAnnotationChecker]: L38-2 has no Hoare annotation [2020-07-17 22:20:34,653 WARN L170 areAnnotationChecker]: L13-1 has no Hoare annotation [2020-07-17 22:20:34,654 WARN L170 areAnnotationChecker]: L13-3 has no Hoare annotation [2020-07-17 22:20:34,654 WARN L170 areAnnotationChecker]: L23-1 has no Hoare annotation [2020-07-17 22:20:34,654 WARN L170 areAnnotationChecker]: L23-3 has no Hoare annotation [2020-07-17 22:20:34,654 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-17 22:20:34,654 WARN L170 areAnnotationChecker]: L13-3 has no Hoare annotation [2020-07-17 22:20:34,654 WARN L170 areAnnotationChecker]: L23-3 has no Hoare annotation [2020-07-17 22:20:34,654 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-17 22:20:34,654 INFO L163 areAnnotationChecker]: CFG has 8 edges. 8 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-17 22:20:34,656 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.07 10:20:34 BoogieIcfgContainer [2020-07-17 22:20:34,657 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-17 22:20:34,658 INFO L168 Benchmark]: Toolchain (without parser) took 26153.91 ms. Allocated memory was 144.7 MB in the beginning and 387.4 MB in the end (delta: 242.7 MB). Free memory was 102.8 MB in the beginning and 111.8 MB in the end (delta: -9.0 MB). Peak memory consumption was 233.8 MB. Max. memory is 7.1 GB. [2020-07-17 22:20:34,659 INFO L168 Benchmark]: CDTParser took 0.51 ms. Allocated memory is still 144.7 MB. Free memory is still 120.6 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-17 22:20:34,659 INFO L168 Benchmark]: CACSL2BoogieTranslator took 444.63 ms. Allocated memory is still 144.7 MB. Free memory was 102.4 MB in the beginning and 92.4 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2020-07-17 22:20:34,660 INFO L168 Benchmark]: Boogie Preprocessor took 233.68 ms. Allocated memory was 144.7 MB in the beginning and 206.0 MB in the end (delta: 61.3 MB). Free memory was 92.4 MB in the beginning and 183.9 MB in the end (delta: -91.5 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. [2020-07-17 22:20:34,660 INFO L168 Benchmark]: RCFGBuilder took 458.71 ms. Allocated memory is still 206.0 MB. Free memory was 183.9 MB in the beginning and 165.3 MB in the end (delta: 18.6 MB). Peak memory consumption was 18.6 MB. Max. memory is 7.1 GB. [2020-07-17 22:20:34,661 INFO L168 Benchmark]: TraceAbstraction took 25006.26 ms. Allocated memory was 206.0 MB in the beginning and 387.4 MB in the end (delta: 181.4 MB). Free memory was 164.3 MB in the beginning and 111.8 MB in the end (delta: 52.5 MB). Peak memory consumption was 233.9 MB. Max. memory is 7.1 GB. [2020-07-17 22:20:34,665 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.51 ms. Allocated memory is still 144.7 MB. Free memory is still 120.6 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 444.63 ms. Allocated memory is still 144.7 MB. Free memory was 102.4 MB in the beginning and 92.4 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 233.68 ms. Allocated memory was 144.7 MB in the beginning and 206.0 MB in the end (delta: 61.3 MB). Free memory was 92.4 MB in the beginning and 183.9 MB in the end (delta: -91.5 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 458.71 ms. Allocated memory is still 206.0 MB. Free memory was 183.9 MB in the beginning and 165.3 MB in the end (delta: 18.6 MB). Peak memory consumption was 18.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 25006.26 ms. Allocated memory was 206.0 MB in the beginning and 387.4 MB in the end (delta: 181.4 MB). Free memory was 164.3 MB in the beginning and 111.8 MB in the end (delta: 52.5 MB). Peak memory consumption was 233.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 39]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 33 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 23.8s, OverallIterations: 11, TraceHistogramMax: 5, AutomataDifference: 13.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 332 SDtfs, 364 SDslu, 2239 SDs, 0 SdLazy, 2269 SolverSat, 315 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 755 GetRequests, 587 SyntacticMatches, 5 SemanticMatches, 163 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 295 ImplicationChecksByTransitivity, 2.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=142occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 11 MinimizatonAttempts, 73 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 404 PreInvPairs, 488 NumberOfFragments, 92 HoareAnnotationTreeSize, 404 FomulaSimplifications, 980 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 11 FomulaSimplificationsInter, 1066 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 5.8s InterpolantComputationTime, 921 NumberOfCodeBlocks, 921 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 901 ConstructedInterpolants, 0 QuantifiedInterpolants, 104145 SizeOfPredicates, 31 NumberOfNonLiveVariables, 1002 ConjunctsInSsa, 99 ConjunctsInUnsatCore, 20 InterpolantComputations, 2 PerfectInterpolantSequences, 549/762 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...