/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 0.1.25-8fc6572 [2020-07-10 14:56:21,684 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-10 14:56:21,688 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-10 14:56:21,707 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-10 14:56:21,708 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-10 14:56:21,709 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-10 14:56:21,711 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-10 14:56:21,720 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-10 14:56:21,723 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-10 14:56:21,726 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-10 14:56:21,729 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-10 14:56:21,731 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-10 14:56:21,731 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-10 14:56:21,733 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-10 14:56:21,735 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-10 14:56:21,736 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-10 14:56:21,737 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-10 14:56:21,738 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-10 14:56:21,739 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-10 14:56:21,744 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-10 14:56:21,749 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-10 14:56:21,750 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-10 14:56:21,753 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-10 14:56:21,753 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-10 14:56:21,756 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-10 14:56:21,756 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-10 14:56:21,756 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-10 14:56:21,759 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-10 14:56:21,760 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-10 14:56:21,761 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-10 14:56:21,761 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-10 14:56:21,762 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-10 14:56:21,763 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-10 14:56:21,764 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-10 14:56:21,766 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-10 14:56:21,766 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-10 14:56:21,767 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-10 14:56:21,767 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-10 14:56:21,767 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-10 14:56:21,768 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-10 14:56:21,769 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-10 14:56:21,770 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 [2020-07-10 14:56:21,806 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-10 14:56:21,807 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-10 14:56:21,809 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-10 14:56:21,809 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-10 14:56:21,809 INFO L138 SettingsManager]: * Use SBE=true [2020-07-10 14:56:21,810 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-10 14:56:21,810 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-10 14:56:21,810 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-10 14:56:21,810 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-10 14:56:21,810 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-10 14:56:21,811 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-10 14:56:21,811 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-10 14:56:21,811 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-10 14:56:21,813 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-10 14:56:21,813 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-10 14:56:21,813 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-10 14:56:21,813 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-10 14:56:21,814 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-10 14:56:21,814 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-10 14:56:21,814 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-10 14:56:21,815 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-10 14:56:21,815 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-10 14:56:21,815 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-10 14:56:21,815 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-10 14:56:21,815 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-10 14:56:21,816 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-10 14:56:21,816 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-10 14:56:21,816 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-10 14:56:21,816 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-10 14:56:21,816 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-10 14:56:22,063 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-10 14:56:22,082 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-10 14:56:22,085 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-10 14:56:22,086 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-10 14:56:22,087 INFO L275 PluginConnector]: CDTParser initialized [2020-07-10 14:56:22,088 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/fibo_2calls_4-1.c [2020-07-10 14:56:22,158 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a8ad9e8e9/2323db6ee17e42f48a4175282357d9ce/FLAGf8fea7db7 [2020-07-10 14:56:22,601 INFO L306 CDTParser]: Found 1 translation units. [2020-07-10 14:56:22,602 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/recursive-simple/fibo_2calls_4-1.c [2020-07-10 14:56:22,608 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a8ad9e8e9/2323db6ee17e42f48a4175282357d9ce/FLAGf8fea7db7 [2020-07-10 14:56:22,994 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a8ad9e8e9/2323db6ee17e42f48a4175282357d9ce [2020-07-10 14:56:23,002 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-10 14:56:23,004 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-10 14:56:23,005 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-10 14:56:23,005 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-10 14:56:23,008 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-10 14:56:23,010 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 02:56:22" (1/1) ... [2020-07-10 14:56:23,012 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70f98808 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:56:23, skipping insertion in model container [2020-07-10 14:56:23,013 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 02:56:22" (1/1) ... [2020-07-10 14:56:23,020 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-10 14:56:23,036 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-10 14:56:23,233 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 14:56:23,238 INFO L203 MainTranslator]: Completed pre-run [2020-07-10 14:56:23,256 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 14:56:23,271 INFO L208 MainTranslator]: Completed translation [2020-07-10 14:56:23,272 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:56:23 WrapperNode [2020-07-10 14:56:23,272 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-10 14:56:23,273 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-10 14:56:23,273 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-10 14:56:23,273 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-10 14:56:23,286 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:56:23" (1/1) ... [2020-07-10 14:56:23,286 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:56:23" (1/1) ... [2020-07-10 14:56:23,292 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:56:23" (1/1) ... [2020-07-10 14:56:23,292 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:56:23" (1/1) ... [2020-07-10 14:56:23,376 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:56:23" (1/1) ... [2020-07-10 14:56:23,380 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:56:23" (1/1) ... [2020-07-10 14:56:23,385 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:56:23" (1/1) ... [2020-07-10 14:56:23,386 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-10 14:56:23,389 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-10 14:56:23,389 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-10 14:56:23,389 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-10 14:56:23,390 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:56:23" (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 [2020-07-10 14:56:23,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-10 14:56:23,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-10 14:56:23,446 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2020-07-10 14:56:23,446 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2020-07-10 14:56:23,446 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-10 14:56:23,446 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-10 14:56:23,446 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-10 14:56:23,446 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2020-07-10 14:56:23,446 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2020-07-10 14:56:23,447 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-10 14:56:23,447 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-10 14:56:23,447 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-10 14:56:23,726 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-10 14:56:23,727 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-10 14:56:23,732 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 02:56:23 BoogieIcfgContainer [2020-07-10 14:56:23,732 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-10 14:56:23,734 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-10 14:56:23,734 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-10 14:56:23,738 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-10 14:56:23,738 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.07 02:56:22" (1/3) ... [2020-07-10 14:56:23,739 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79374932 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 02:56:23, skipping insertion in model container [2020-07-10 14:56:23,740 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:56:23" (2/3) ... [2020-07-10 14:56:23,740 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79374932 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 02:56:23, skipping insertion in model container [2020-07-10 14:56:23,741 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 02:56:23" (3/3) ... [2020-07-10 14:56:23,742 INFO L109 eAbstractionObserver]: Analyzing ICFG fibo_2calls_4-1.c [2020-07-10 14:56:23,756 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-10 14:56:23,764 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-10 14:56:23,780 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-10 14:56:23,803 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-10 14:56:23,804 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-10 14:56:23,804 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-10 14:56:23,804 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-10 14:56:23,804 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-10 14:56:23,804 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-10 14:56:23,804 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-10 14:56:23,805 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-10 14:56:23,828 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2020-07-10 14:56:23,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-07-10 14:56:23,834 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 14:56:23,835 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-10 14:56:23,835 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 14:56:23,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 14:56:23,841 INFO L82 PathProgramCache]: Analyzing trace with hash 1464461757, now seen corresponding path program 1 times [2020-07-10 14:56:23,851 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-10 14:56:23,852 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530733273] [2020-07-10 14:56:23,852 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 14:56:23,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:56:24,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:56:24,046 INFO L280 TraceCheckUtils]: 0: Hoare triple {36#true} assume true; {36#true} is VALID [2020-07-10 14:56:24,047 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {36#true} {36#true} #47#return; {36#true} is VALID [2020-07-10 14:56:24,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:56:24,107 INFO L280 TraceCheckUtils]: 0: Hoare triple {36#true} ~n := #in~n; {45#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-10 14:56:24,109 INFO L280 TraceCheckUtils]: 1: Hoare triple {45#(= fibo1_~n |fibo1_#in~n|)} assume ~n < 1;#res := 0; {46#(<= |fibo1_#in~n| 0)} is VALID [2020-07-10 14:56:24,110 INFO L280 TraceCheckUtils]: 2: Hoare triple {46#(<= |fibo1_#in~n| 0)} assume true; {46#(<= |fibo1_#in~n| 0)} is VALID [2020-07-10 14:56:24,112 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {46#(<= |fibo1_#in~n| 0)} {40#(<= 4 main_~x~0)} #51#return; {37#false} is VALID [2020-07-10 14:56:24,113 INFO L263 TraceCheckUtils]: 0: Hoare triple {36#true} call ULTIMATE.init(); {36#true} is VALID [2020-07-10 14:56:24,113 INFO L280 TraceCheckUtils]: 1: Hoare triple {36#true} assume true; {36#true} is VALID [2020-07-10 14:56:24,114 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {36#true} {36#true} #47#return; {36#true} is VALID [2020-07-10 14:56:24,114 INFO L263 TraceCheckUtils]: 3: Hoare triple {36#true} call #t~ret5 := main(); {36#true} is VALID [2020-07-10 14:56:24,116 INFO L280 TraceCheckUtils]: 4: Hoare triple {36#true} ~x~0 := 4; {40#(<= 4 main_~x~0)} is VALID [2020-07-10 14:56:24,116 INFO L263 TraceCheckUtils]: 5: Hoare triple {40#(<= 4 main_~x~0)} call #t~ret4 := fibo1(~x~0); {36#true} is VALID [2020-07-10 14:56:24,117 INFO L280 TraceCheckUtils]: 6: Hoare triple {36#true} ~n := #in~n; {45#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-10 14:56:24,119 INFO L280 TraceCheckUtils]: 7: Hoare triple {45#(= fibo1_~n |fibo1_#in~n|)} assume ~n < 1;#res := 0; {46#(<= |fibo1_#in~n| 0)} is VALID [2020-07-10 14:56:24,120 INFO L280 TraceCheckUtils]: 8: Hoare triple {46#(<= |fibo1_#in~n| 0)} assume true; {46#(<= |fibo1_#in~n| 0)} is VALID [2020-07-10 14:56:24,121 INFO L275 TraceCheckUtils]: 9: Hoare quadruple {46#(<= |fibo1_#in~n| 0)} {40#(<= 4 main_~x~0)} #51#return; {37#false} is VALID [2020-07-10 14:56:24,122 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 [2020-07-10 14:56:24,122 INFO L280 TraceCheckUtils]: 11: Hoare triple {37#false} assume 3 != ~result~0; {37#false} is VALID [2020-07-10 14:56:24,123 INFO L280 TraceCheckUtils]: 12: Hoare triple {37#false} assume !false; {37#false} is VALID [2020-07-10 14:56:24,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-10 14:56:24,125 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530733273] [2020-07-10 14:56:24,126 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-10 14:56:24,127 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-10 14:56:24,128 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259066587] [2020-07-10 14:56:24,134 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-07-10 14:56:24,137 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 14:56:24,141 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-10 14:56:24,167 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 13 edges. 13 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 14:56:24,168 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-10 14:56:24,168 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-10 14:56:24,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-10 14:56:24,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-10 14:56:24,180 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 5 states. [2020-07-10 14:56:24,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 14:56:24,474 INFO L93 Difference]: Finished difference Result 44 states and 53 transitions. [2020-07-10 14:56:24,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-10 14:56:24,474 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-07-10 14:56:24,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 14:56:24,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-10 14:56:24,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 53 transitions. [2020-07-10 14:56:24,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-10 14:56:24,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 53 transitions. [2020-07-10 14:56:24,491 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 53 transitions. [2020-07-10 14:56:24,576 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 53 edges. 53 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 14:56:24,590 INFO L225 Difference]: With dead ends: 44 [2020-07-10 14:56:24,591 INFO L226 Difference]: Without dead ends: 30 [2020-07-10 14:56:24,594 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 [2020-07-10 14:56:24,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-07-10 14:56:24,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-07-10 14:56:24,673 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 14:56:24,674 INFO L82 GeneralOperation]: Start isEquivalent. First operand 30 states. Second operand 30 states. [2020-07-10 14:56:24,675 INFO L74 IsIncluded]: Start isIncluded. First operand 30 states. Second operand 30 states. [2020-07-10 14:56:24,675 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 30 states. [2020-07-10 14:56:24,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 14:56:24,685 INFO L93 Difference]: Finished difference Result 30 states and 37 transitions. [2020-07-10 14:56:24,685 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2020-07-10 14:56:24,686 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 14:56:24,687 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 14:56:24,687 INFO L74 IsIncluded]: Start isIncluded. First operand 30 states. Second operand 30 states. [2020-07-10 14:56:24,687 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 30 states. [2020-07-10 14:56:24,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 14:56:24,693 INFO L93 Difference]: Finished difference Result 30 states and 37 transitions. [2020-07-10 14:56:24,693 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2020-07-10 14:56:24,694 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 14:56:24,694 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 14:56:24,695 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 14:56:24,695 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 14:56:24,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-07-10 14:56:24,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 37 transitions. [2020-07-10 14:56:24,701 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 37 transitions. Word has length 13 [2020-07-10 14:56:24,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 14:56:24,701 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 37 transitions. [2020-07-10 14:56:24,701 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-10 14:56:24,702 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2020-07-10 14:56:24,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-07-10 14:56:24,702 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 14:56:24,703 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-10 14:56:24,703 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-10 14:56:24,703 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 14:56:24,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 14:56:24,704 INFO L82 PathProgramCache]: Analyzing trace with hash -1134800479, now seen corresponding path program 1 times [2020-07-10 14:56:24,704 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-10 14:56:24,705 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284638498] [2020-07-10 14:56:24,705 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 14:56:24,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:56:24,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:56:24,740 INFO L280 TraceCheckUtils]: 0: Hoare triple {207#true} assume true; {207#true} is VALID [2020-07-10 14:56:24,741 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {207#true} {207#true} #47#return; {207#true} is VALID [2020-07-10 14:56:24,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:56:24,774 INFO L280 TraceCheckUtils]: 0: Hoare triple {207#true} ~n := #in~n; {217#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-10 14:56:24,775 INFO L280 TraceCheckUtils]: 1: Hoare triple {217#(= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {217#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-10 14:56:24,776 INFO L280 TraceCheckUtils]: 2: Hoare triple {217#(= fibo1_~n |fibo1_#in~n|)} assume 1 == ~n;#res := 1; {218#(<= |fibo1_#in~n| 1)} is VALID [2020-07-10 14:56:24,777 INFO L280 TraceCheckUtils]: 3: Hoare triple {218#(<= |fibo1_#in~n| 1)} assume true; {218#(<= |fibo1_#in~n| 1)} is VALID [2020-07-10 14:56:24,779 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {218#(<= |fibo1_#in~n| 1)} {211#(<= 4 main_~x~0)} #51#return; {208#false} is VALID [2020-07-10 14:56:24,779 INFO L263 TraceCheckUtils]: 0: Hoare triple {207#true} call ULTIMATE.init(); {207#true} is VALID [2020-07-10 14:56:24,780 INFO L280 TraceCheckUtils]: 1: Hoare triple {207#true} assume true; {207#true} is VALID [2020-07-10 14:56:24,780 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {207#true} {207#true} #47#return; {207#true} is VALID [2020-07-10 14:56:24,780 INFO L263 TraceCheckUtils]: 3: Hoare triple {207#true} call #t~ret5 := main(); {207#true} is VALID [2020-07-10 14:56:24,781 INFO L280 TraceCheckUtils]: 4: Hoare triple {207#true} ~x~0 := 4; {211#(<= 4 main_~x~0)} is VALID [2020-07-10 14:56:24,781 INFO L263 TraceCheckUtils]: 5: Hoare triple {211#(<= 4 main_~x~0)} call #t~ret4 := fibo1(~x~0); {207#true} is VALID [2020-07-10 14:56:24,782 INFO L280 TraceCheckUtils]: 6: Hoare triple {207#true} ~n := #in~n; {217#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-10 14:56:24,783 INFO L280 TraceCheckUtils]: 7: Hoare triple {217#(= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {217#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-10 14:56:24,784 INFO L280 TraceCheckUtils]: 8: Hoare triple {217#(= fibo1_~n |fibo1_#in~n|)} assume 1 == ~n;#res := 1; {218#(<= |fibo1_#in~n| 1)} is VALID [2020-07-10 14:56:24,785 INFO L280 TraceCheckUtils]: 9: Hoare triple {218#(<= |fibo1_#in~n| 1)} assume true; {218#(<= |fibo1_#in~n| 1)} is VALID [2020-07-10 14:56:24,786 INFO L275 TraceCheckUtils]: 10: Hoare quadruple {218#(<= |fibo1_#in~n| 1)} {211#(<= 4 main_~x~0)} #51#return; {208#false} is VALID [2020-07-10 14:56:24,786 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 [2020-07-10 14:56:24,787 INFO L280 TraceCheckUtils]: 12: Hoare triple {208#false} assume 3 != ~result~0; {208#false} is VALID [2020-07-10 14:56:24,787 INFO L280 TraceCheckUtils]: 13: Hoare triple {208#false} assume !false; {208#false} is VALID [2020-07-10 14:56:24,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-10 14:56:24,788 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284638498] [2020-07-10 14:56:24,789 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-10 14:56:24,789 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-10 14:56:24,789 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776409477] [2020-07-10 14:56:24,791 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-07-10 14:56:24,791 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 14:56:24,791 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-10 14:56:24,810 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 14 edges. 14 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 14:56:24,810 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-10 14:56:24,810 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-10 14:56:24,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-10 14:56:24,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-10 14:56:24,811 INFO L87 Difference]: Start difference. First operand 30 states and 37 transitions. Second operand 5 states. [2020-07-10 14:56:25,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 14:56:25,006 INFO L93 Difference]: Finished difference Result 36 states and 44 transitions. [2020-07-10 14:56:25,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-10 14:56:25,008 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-07-10 14:56:25,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 14:56:25,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-10 14:56:25,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 41 transitions. [2020-07-10 14:56:25,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-10 14:56:25,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 41 transitions. [2020-07-10 14:56:25,024 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 41 transitions. [2020-07-10 14:56:25,087 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 41 edges. 41 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 14:56:25,092 INFO L225 Difference]: With dead ends: 36 [2020-07-10 14:56:25,092 INFO L226 Difference]: Without dead ends: 32 [2020-07-10 14:56:25,093 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 [2020-07-10 14:56:25,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-07-10 14:56:25,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 30. [2020-07-10 14:56:25,118 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 14:56:25,119 INFO L82 GeneralOperation]: Start isEquivalent. First operand 32 states. Second operand 30 states. [2020-07-10 14:56:25,119 INFO L74 IsIncluded]: Start isIncluded. First operand 32 states. Second operand 30 states. [2020-07-10 14:56:25,120 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 30 states. [2020-07-10 14:56:25,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 14:56:25,129 INFO L93 Difference]: Finished difference Result 32 states and 40 transitions. [2020-07-10 14:56:25,130 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 40 transitions. [2020-07-10 14:56:25,132 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 14:56:25,132 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 14:56:25,132 INFO L74 IsIncluded]: Start isIncluded. First operand 30 states. Second operand 32 states. [2020-07-10 14:56:25,134 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 32 states. [2020-07-10 14:56:25,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 14:56:25,145 INFO L93 Difference]: Finished difference Result 32 states and 40 transitions. [2020-07-10 14:56:25,145 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 40 transitions. [2020-07-10 14:56:25,146 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 14:56:25,147 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 14:56:25,147 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 14:56:25,147 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 14:56:25,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-07-10 14:56:25,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 37 transitions. [2020-07-10 14:56:25,153 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 37 transitions. Word has length 14 [2020-07-10 14:56:25,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 14:56:25,154 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 37 transitions. [2020-07-10 14:56:25,154 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-10 14:56:25,154 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2020-07-10 14:56:25,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-07-10 14:56:25,158 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 14:56:25,159 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] [2020-07-10 14:56:25,159 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-10 14:56:25,159 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 14:56:25,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 14:56:25,160 INFO L82 PathProgramCache]: Analyzing trace with hash -1592795560, now seen corresponding path program 1 times [2020-07-10 14:56:25,160 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-10 14:56:25,160 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361625136] [2020-07-10 14:56:25,161 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 14:56:25,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:56:25,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:56:25,249 INFO L280 TraceCheckUtils]: 0: Hoare triple {375#true} assume true; {375#true} is VALID [2020-07-10 14:56:25,250 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {375#true} {375#true} #47#return; {375#true} is VALID [2020-07-10 14:56:25,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:56:25,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:56:25,369 INFO L280 TraceCheckUtils]: 0: Hoare triple {375#true} ~n := #in~n; {407#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-10 14:56:25,371 INFO L280 TraceCheckUtils]: 1: Hoare triple {407#(= fibo2_~n |fibo2_#in~n|)} assume ~n < 1;#res := 0; {408#(<= |fibo2_#in~n| 0)} is VALID [2020-07-10 14:56:25,371 INFO L280 TraceCheckUtils]: 2: Hoare triple {408#(<= |fibo2_#in~n| 0)} assume true; {408#(<= |fibo2_#in~n| 0)} is VALID [2020-07-10 14:56:25,373 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {408#(<= |fibo2_#in~n| 0)} {398#(< 1 fibo1_~n)} #57#return; {376#false} is VALID [2020-07-10 14:56:25,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:56:25,387 INFO L280 TraceCheckUtils]: 0: Hoare triple {375#true} ~n := #in~n; {375#true} is VALID [2020-07-10 14:56:25,387 INFO L280 TraceCheckUtils]: 1: Hoare triple {375#true} assume ~n < 1;#res := 0; {375#true} is VALID [2020-07-10 14:56:25,388 INFO L280 TraceCheckUtils]: 2: Hoare triple {375#true} assume true; {375#true} is VALID [2020-07-10 14:56:25,388 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {375#true} {376#false} #59#return; {376#false} is VALID [2020-07-10 14:56:25,388 INFO L280 TraceCheckUtils]: 0: Hoare triple {375#true} ~n := #in~n; {375#true} is VALID [2020-07-10 14:56:25,394 INFO L280 TraceCheckUtils]: 1: Hoare triple {375#true} assume !(~n < 1); {397#(< 0 fibo1_~n)} is VALID [2020-07-10 14:56:25,395 INFO L280 TraceCheckUtils]: 2: Hoare triple {397#(< 0 fibo1_~n)} assume !(1 == ~n); {398#(< 1 fibo1_~n)} is VALID [2020-07-10 14:56:25,395 INFO L263 TraceCheckUtils]: 3: Hoare triple {398#(< 1 fibo1_~n)} call #t~ret0 := fibo2(~n - 1); {375#true} is VALID [2020-07-10 14:56:25,396 INFO L280 TraceCheckUtils]: 4: Hoare triple {375#true} ~n := #in~n; {407#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-10 14:56:25,397 INFO L280 TraceCheckUtils]: 5: Hoare triple {407#(= fibo2_~n |fibo2_#in~n|)} assume ~n < 1;#res := 0; {408#(<= |fibo2_#in~n| 0)} is VALID [2020-07-10 14:56:25,398 INFO L280 TraceCheckUtils]: 6: Hoare triple {408#(<= |fibo2_#in~n| 0)} assume true; {408#(<= |fibo2_#in~n| 0)} is VALID [2020-07-10 14:56:25,399 INFO L275 TraceCheckUtils]: 7: Hoare quadruple {408#(<= |fibo2_#in~n| 0)} {398#(< 1 fibo1_~n)} #57#return; {376#false} is VALID [2020-07-10 14:56:25,400 INFO L280 TraceCheckUtils]: 8: Hoare triple {376#false} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {376#false} is VALID [2020-07-10 14:56:25,400 INFO L263 TraceCheckUtils]: 9: Hoare triple {376#false} call #t~ret1 := fibo2(~n - 2); {375#true} is VALID [2020-07-10 14:56:25,400 INFO L280 TraceCheckUtils]: 10: Hoare triple {375#true} ~n := #in~n; {375#true} is VALID [2020-07-10 14:56:25,400 INFO L280 TraceCheckUtils]: 11: Hoare triple {375#true} assume ~n < 1;#res := 0; {375#true} is VALID [2020-07-10 14:56:25,401 INFO L280 TraceCheckUtils]: 12: Hoare triple {375#true} assume true; {375#true} is VALID [2020-07-10 14:56:25,401 INFO L275 TraceCheckUtils]: 13: Hoare quadruple {375#true} {376#false} #59#return; {376#false} is VALID [2020-07-10 14:56:25,404 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 [2020-07-10 14:56:25,405 INFO L280 TraceCheckUtils]: 15: Hoare triple {376#false} assume true; {376#false} is VALID [2020-07-10 14:56:25,405 INFO L275 TraceCheckUtils]: 16: Hoare quadruple {376#false} {379#(<= 4 main_~x~0)} #51#return; {376#false} is VALID [2020-07-10 14:56:25,406 INFO L263 TraceCheckUtils]: 0: Hoare triple {375#true} call ULTIMATE.init(); {375#true} is VALID [2020-07-10 14:56:25,406 INFO L280 TraceCheckUtils]: 1: Hoare triple {375#true} assume true; {375#true} is VALID [2020-07-10 14:56:25,407 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {375#true} {375#true} #47#return; {375#true} is VALID [2020-07-10 14:56:25,407 INFO L263 TraceCheckUtils]: 3: Hoare triple {375#true} call #t~ret5 := main(); {375#true} is VALID [2020-07-10 14:56:25,408 INFO L280 TraceCheckUtils]: 4: Hoare triple {375#true} ~x~0 := 4; {379#(<= 4 main_~x~0)} is VALID [2020-07-10 14:56:25,408 INFO L263 TraceCheckUtils]: 5: Hoare triple {379#(<= 4 main_~x~0)} call #t~ret4 := fibo1(~x~0); {375#true} is VALID [2020-07-10 14:56:25,409 INFO L280 TraceCheckUtils]: 6: Hoare triple {375#true} ~n := #in~n; {375#true} is VALID [2020-07-10 14:56:25,410 INFO L280 TraceCheckUtils]: 7: Hoare triple {375#true} assume !(~n < 1); {397#(< 0 fibo1_~n)} is VALID [2020-07-10 14:56:25,410 INFO L280 TraceCheckUtils]: 8: Hoare triple {397#(< 0 fibo1_~n)} assume !(1 == ~n); {398#(< 1 fibo1_~n)} is VALID [2020-07-10 14:56:25,411 INFO L263 TraceCheckUtils]: 9: Hoare triple {398#(< 1 fibo1_~n)} call #t~ret0 := fibo2(~n - 1); {375#true} is VALID [2020-07-10 14:56:25,411 INFO L280 TraceCheckUtils]: 10: Hoare triple {375#true} ~n := #in~n; {407#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-10 14:56:25,412 INFO L280 TraceCheckUtils]: 11: Hoare triple {407#(= fibo2_~n |fibo2_#in~n|)} assume ~n < 1;#res := 0; {408#(<= |fibo2_#in~n| 0)} is VALID [2020-07-10 14:56:25,413 INFO L280 TraceCheckUtils]: 12: Hoare triple {408#(<= |fibo2_#in~n| 0)} assume true; {408#(<= |fibo2_#in~n| 0)} is VALID [2020-07-10 14:56:25,417 INFO L275 TraceCheckUtils]: 13: Hoare quadruple {408#(<= |fibo2_#in~n| 0)} {398#(< 1 fibo1_~n)} #57#return; {376#false} is VALID [2020-07-10 14:56:25,418 INFO L280 TraceCheckUtils]: 14: Hoare triple {376#false} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {376#false} is VALID [2020-07-10 14:56:25,418 INFO L263 TraceCheckUtils]: 15: Hoare triple {376#false} call #t~ret1 := fibo2(~n - 2); {375#true} is VALID [2020-07-10 14:56:25,418 INFO L280 TraceCheckUtils]: 16: Hoare triple {375#true} ~n := #in~n; {375#true} is VALID [2020-07-10 14:56:25,419 INFO L280 TraceCheckUtils]: 17: Hoare triple {375#true} assume ~n < 1;#res := 0; {375#true} is VALID [2020-07-10 14:56:25,419 INFO L280 TraceCheckUtils]: 18: Hoare triple {375#true} assume true; {375#true} is VALID [2020-07-10 14:56:25,423 INFO L275 TraceCheckUtils]: 19: Hoare quadruple {375#true} {376#false} #59#return; {376#false} is VALID [2020-07-10 14:56:25,423 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 [2020-07-10 14:56:25,423 INFO L280 TraceCheckUtils]: 21: Hoare triple {376#false} assume true; {376#false} is VALID [2020-07-10 14:56:25,424 INFO L275 TraceCheckUtils]: 22: Hoare quadruple {376#false} {379#(<= 4 main_~x~0)} #51#return; {376#false} is VALID [2020-07-10 14:56:25,424 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 [2020-07-10 14:56:25,426 INFO L280 TraceCheckUtils]: 24: Hoare triple {376#false} assume 3 != ~result~0; {376#false} is VALID [2020-07-10 14:56:25,427 INFO L280 TraceCheckUtils]: 25: Hoare triple {376#false} assume !false; {376#false} is VALID [2020-07-10 14:56:25,429 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-10 14:56:25,429 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361625136] [2020-07-10 14:56:25,430 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1345395007] [2020-07-10 14:56:25,430 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 [2020-07-10 14:56:25,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:56:25,480 INFO L264 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-10 14:56:25,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:56:25,497 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-10 14:56:25,649 INFO L263 TraceCheckUtils]: 0: Hoare triple {375#true} call ULTIMATE.init(); {375#true} is VALID [2020-07-10 14:56:25,650 INFO L280 TraceCheckUtils]: 1: Hoare triple {375#true} assume true; {375#true} is VALID [2020-07-10 14:56:25,650 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {375#true} {375#true} #47#return; {375#true} is VALID [2020-07-10 14:56:25,651 INFO L263 TraceCheckUtils]: 3: Hoare triple {375#true} call #t~ret5 := main(); {375#true} is VALID [2020-07-10 14:56:25,652 INFO L280 TraceCheckUtils]: 4: Hoare triple {375#true} ~x~0 := 4; {379#(<= 4 main_~x~0)} is VALID [2020-07-10 14:56:25,652 INFO L263 TraceCheckUtils]: 5: Hoare triple {379#(<= 4 main_~x~0)} call #t~ret4 := fibo1(~x~0); {375#true} is VALID [2020-07-10 14:56:25,653 INFO L280 TraceCheckUtils]: 6: Hoare triple {375#true} ~n := #in~n; {430#(<= |fibo1_#in~n| fibo1_~n)} is VALID [2020-07-10 14:56:25,653 INFO L280 TraceCheckUtils]: 7: Hoare triple {430#(<= |fibo1_#in~n| fibo1_~n)} assume !(~n < 1); {430#(<= |fibo1_#in~n| fibo1_~n)} is VALID [2020-07-10 14:56:25,654 INFO L280 TraceCheckUtils]: 8: Hoare triple {430#(<= |fibo1_#in~n| fibo1_~n)} assume !(1 == ~n); {430#(<= |fibo1_#in~n| fibo1_~n)} is VALID [2020-07-10 14:56:25,655 INFO L263 TraceCheckUtils]: 9: Hoare triple {430#(<= |fibo1_#in~n| fibo1_~n)} call #t~ret0 := fibo2(~n - 1); {375#true} is VALID [2020-07-10 14:56:25,656 INFO L280 TraceCheckUtils]: 10: Hoare triple {375#true} ~n := #in~n; {443#(<= |fibo2_#in~n| fibo2_~n)} is VALID [2020-07-10 14:56:25,657 INFO L280 TraceCheckUtils]: 11: Hoare triple {443#(<= |fibo2_#in~n| fibo2_~n)} assume ~n < 1;#res := 0; {408#(<= |fibo2_#in~n| 0)} is VALID [2020-07-10 14:56:25,657 INFO L280 TraceCheckUtils]: 12: Hoare triple {408#(<= |fibo2_#in~n| 0)} assume true; {408#(<= |fibo2_#in~n| 0)} is VALID [2020-07-10 14:56:25,659 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 [2020-07-10 14:56:25,660 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 [2020-07-10 14:56:25,660 INFO L263 TraceCheckUtils]: 15: Hoare triple {453#(<= |fibo1_#in~n| 1)} call #t~ret1 := fibo2(~n - 2); {375#true} is VALID [2020-07-10 14:56:25,660 INFO L280 TraceCheckUtils]: 16: Hoare triple {375#true} ~n := #in~n; {375#true} is VALID [2020-07-10 14:56:25,661 INFO L280 TraceCheckUtils]: 17: Hoare triple {375#true} assume ~n < 1;#res := 0; {375#true} is VALID [2020-07-10 14:56:25,661 INFO L280 TraceCheckUtils]: 18: Hoare triple {375#true} assume true; {375#true} is VALID [2020-07-10 14:56:25,662 INFO L275 TraceCheckUtils]: 19: Hoare quadruple {375#true} {453#(<= |fibo1_#in~n| 1)} #59#return; {453#(<= |fibo1_#in~n| 1)} is VALID [2020-07-10 14:56:25,663 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 [2020-07-10 14:56:25,664 INFO L280 TraceCheckUtils]: 21: Hoare triple {453#(<= |fibo1_#in~n| 1)} assume true; {453#(<= |fibo1_#in~n| 1)} is VALID [2020-07-10 14:56:25,665 INFO L275 TraceCheckUtils]: 22: Hoare quadruple {453#(<= |fibo1_#in~n| 1)} {379#(<= 4 main_~x~0)} #51#return; {376#false} is VALID [2020-07-10 14:56:25,665 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 [2020-07-10 14:56:25,666 INFO L280 TraceCheckUtils]: 24: Hoare triple {376#false} assume 3 != ~result~0; {376#false} is VALID [2020-07-10 14:56:25,666 INFO L280 TraceCheckUtils]: 25: Hoare triple {376#false} assume !false; {376#false} is VALID [2020-07-10 14:56:25,668 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-10 14:56:25,668 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-10 14:56:25,669 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2020-07-10 14:56:25,669 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504881798] [2020-07-10 14:56:25,670 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 26 [2020-07-10 14:56:25,671 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 14:56:25,671 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 10 states. [2020-07-10 14:56:25,720 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 39 edges. 39 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 14:56:25,720 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-10 14:56:25,720 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-10 14:56:25,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-10 14:56:25,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-07-10 14:56:25,721 INFO L87 Difference]: Start difference. First operand 30 states and 37 transitions. Second operand 10 states. [2020-07-10 14:56:26,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 14:56:26,293 INFO L93 Difference]: Finished difference Result 58 states and 78 transitions. [2020-07-10 14:56:26,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-10 14:56:26,293 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 26 [2020-07-10 14:56:26,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 14:56:26,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-07-10 14:56:26,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 75 transitions. [2020-07-10 14:56:26,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-07-10 14:56:26,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 75 transitions. [2020-07-10 14:56:26,303 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 10 states and 75 transitions. [2020-07-10 14:56:26,408 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 75 edges. 75 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 14:56:26,410 INFO L225 Difference]: With dead ends: 58 [2020-07-10 14:56:26,411 INFO L226 Difference]: Without dead ends: 34 [2020-07-10 14:56:26,412 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 [2020-07-10 14:56:26,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-07-10 14:56:26,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 32. [2020-07-10 14:56:26,425 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 14:56:26,425 INFO L82 GeneralOperation]: Start isEquivalent. First operand 34 states. Second operand 32 states. [2020-07-10 14:56:26,425 INFO L74 IsIncluded]: Start isIncluded. First operand 34 states. Second operand 32 states. [2020-07-10 14:56:26,426 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 32 states. [2020-07-10 14:56:26,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 14:56:26,430 INFO L93 Difference]: Finished difference Result 34 states and 42 transitions. [2020-07-10 14:56:26,430 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 42 transitions. [2020-07-10 14:56:26,431 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 14:56:26,431 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 14:56:26,431 INFO L74 IsIncluded]: Start isIncluded. First operand 32 states. Second operand 34 states. [2020-07-10 14:56:26,431 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 34 states. [2020-07-10 14:56:26,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 14:56:26,435 INFO L93 Difference]: Finished difference Result 34 states and 42 transitions. [2020-07-10 14:56:26,435 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 42 transitions. [2020-07-10 14:56:26,436 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 14:56:26,436 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 14:56:26,436 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 14:56:26,436 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 14:56:26,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-07-10 14:56:26,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 39 transitions. [2020-07-10 14:56:26,440 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 39 transitions. Word has length 26 [2020-07-10 14:56:26,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 14:56:26,440 INFO L479 AbstractCegarLoop]: Abstraction has 32 states and 39 transitions. [2020-07-10 14:56:26,441 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-10 14:56:26,441 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 39 transitions. [2020-07-10 14:56:26,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-07-10 14:56:26,442 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 14:56:26,442 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] [2020-07-10 14:56:26,656 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-07-10 14:56:26,657 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 14:56:26,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 14:56:26,657 INFO L82 PathProgramCache]: Analyzing trace with hash 746633022, now seen corresponding path program 1 times [2020-07-10 14:56:26,658 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-10 14:56:26,658 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367689815] [2020-07-10 14:56:26,659 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 14:56:26,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:56:26,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:56:26,696 INFO L280 TraceCheckUtils]: 0: Hoare triple {685#true} assume true; {685#true} is VALID [2020-07-10 14:56:26,696 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {685#true} {685#true} #47#return; {685#true} is VALID [2020-07-10 14:56:26,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:56:26,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:56:26,757 INFO L280 TraceCheckUtils]: 0: Hoare triple {685#true} ~n := #in~n; {719#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-10 14:56:26,757 INFO L280 TraceCheckUtils]: 1: Hoare triple {719#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {719#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-10 14:56:26,758 INFO L280 TraceCheckUtils]: 2: Hoare triple {719#(= fibo2_~n |fibo2_#in~n|)} assume 1 == ~n;#res := 1; {720#(<= |fibo2_#in~n| 1)} is VALID [2020-07-10 14:56:26,759 INFO L280 TraceCheckUtils]: 3: Hoare triple {720#(<= |fibo2_#in~n| 1)} assume true; {720#(<= |fibo2_#in~n| 1)} is VALID [2020-07-10 14:56:26,760 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 [2020-07-10 14:56:26,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:56:26,767 INFO L280 TraceCheckUtils]: 0: Hoare triple {685#true} ~n := #in~n; {685#true} is VALID [2020-07-10 14:56:26,767 INFO L280 TraceCheckUtils]: 1: Hoare triple {685#true} assume ~n < 1;#res := 0; {685#true} is VALID [2020-07-10 14:56:26,767 INFO L280 TraceCheckUtils]: 2: Hoare triple {685#true} assume true; {685#true} is VALID [2020-07-10 14:56:26,768 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {685#true} {714#(<= |fibo1_#in~n| 2)} #59#return; {714#(<= |fibo1_#in~n| 2)} is VALID [2020-07-10 14:56:26,769 INFO L280 TraceCheckUtils]: 0: Hoare triple {685#true} ~n := #in~n; {708#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-10 14:56:26,780 INFO L280 TraceCheckUtils]: 1: Hoare triple {708#(= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {708#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-10 14:56:26,782 INFO L280 TraceCheckUtils]: 2: Hoare triple {708#(= fibo1_~n |fibo1_#in~n|)} assume !(1 == ~n); {708#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-10 14:56:26,782 INFO L263 TraceCheckUtils]: 3: Hoare triple {708#(= fibo1_~n |fibo1_#in~n|)} call #t~ret0 := fibo2(~n - 1); {685#true} is VALID [2020-07-10 14:56:26,783 INFO L280 TraceCheckUtils]: 4: Hoare triple {685#true} ~n := #in~n; {719#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-10 14:56:26,786 INFO L280 TraceCheckUtils]: 5: Hoare triple {719#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {719#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-10 14:56:26,787 INFO L280 TraceCheckUtils]: 6: Hoare triple {719#(= fibo2_~n |fibo2_#in~n|)} assume 1 == ~n;#res := 1; {720#(<= |fibo2_#in~n| 1)} is VALID [2020-07-10 14:56:26,787 INFO L280 TraceCheckUtils]: 7: Hoare triple {720#(<= |fibo2_#in~n| 1)} assume true; {720#(<= |fibo2_#in~n| 1)} is VALID [2020-07-10 14:56:26,788 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 [2020-07-10 14:56:26,789 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 [2020-07-10 14:56:26,789 INFO L263 TraceCheckUtils]: 10: Hoare triple {714#(<= |fibo1_#in~n| 2)} call #t~ret1 := fibo2(~n - 2); {685#true} is VALID [2020-07-10 14:56:26,789 INFO L280 TraceCheckUtils]: 11: Hoare triple {685#true} ~n := #in~n; {685#true} is VALID [2020-07-10 14:56:26,790 INFO L280 TraceCheckUtils]: 12: Hoare triple {685#true} assume ~n < 1;#res := 0; {685#true} is VALID [2020-07-10 14:56:26,790 INFO L280 TraceCheckUtils]: 13: Hoare triple {685#true} assume true; {685#true} is VALID [2020-07-10 14:56:26,790 INFO L275 TraceCheckUtils]: 14: Hoare quadruple {685#true} {714#(<= |fibo1_#in~n| 2)} #59#return; {714#(<= |fibo1_#in~n| 2)} is VALID [2020-07-10 14:56:26,791 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 [2020-07-10 14:56:26,791 INFO L280 TraceCheckUtils]: 16: Hoare triple {714#(<= |fibo1_#in~n| 2)} assume true; {714#(<= |fibo1_#in~n| 2)} is VALID [2020-07-10 14:56:26,793 INFO L275 TraceCheckUtils]: 17: Hoare quadruple {714#(<= |fibo1_#in~n| 2)} {689#(<= 4 main_~x~0)} #51#return; {686#false} is VALID [2020-07-10 14:56:26,794 INFO L263 TraceCheckUtils]: 0: Hoare triple {685#true} call ULTIMATE.init(); {685#true} is VALID [2020-07-10 14:56:26,794 INFO L280 TraceCheckUtils]: 1: Hoare triple {685#true} assume true; {685#true} is VALID [2020-07-10 14:56:26,795 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {685#true} {685#true} #47#return; {685#true} is VALID [2020-07-10 14:56:26,795 INFO L263 TraceCheckUtils]: 3: Hoare triple {685#true} call #t~ret5 := main(); {685#true} is VALID [2020-07-10 14:56:26,796 INFO L280 TraceCheckUtils]: 4: Hoare triple {685#true} ~x~0 := 4; {689#(<= 4 main_~x~0)} is VALID [2020-07-10 14:56:26,796 INFO L263 TraceCheckUtils]: 5: Hoare triple {689#(<= 4 main_~x~0)} call #t~ret4 := fibo1(~x~0); {685#true} is VALID [2020-07-10 14:56:26,797 INFO L280 TraceCheckUtils]: 6: Hoare triple {685#true} ~n := #in~n; {708#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-10 14:56:26,797 INFO L280 TraceCheckUtils]: 7: Hoare triple {708#(= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {708#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-10 14:56:26,798 INFO L280 TraceCheckUtils]: 8: Hoare triple {708#(= fibo1_~n |fibo1_#in~n|)} assume !(1 == ~n); {708#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-10 14:56:26,798 INFO L263 TraceCheckUtils]: 9: Hoare triple {708#(= fibo1_~n |fibo1_#in~n|)} call #t~ret0 := fibo2(~n - 1); {685#true} is VALID [2020-07-10 14:56:26,799 INFO L280 TraceCheckUtils]: 10: Hoare triple {685#true} ~n := #in~n; {719#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-10 14:56:26,799 INFO L280 TraceCheckUtils]: 11: Hoare triple {719#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {719#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-10 14:56:26,800 INFO L280 TraceCheckUtils]: 12: Hoare triple {719#(= fibo2_~n |fibo2_#in~n|)} assume 1 == ~n;#res := 1; {720#(<= |fibo2_#in~n| 1)} is VALID [2020-07-10 14:56:26,800 INFO L280 TraceCheckUtils]: 13: Hoare triple {720#(<= |fibo2_#in~n| 1)} assume true; {720#(<= |fibo2_#in~n| 1)} is VALID [2020-07-10 14:56:26,801 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 [2020-07-10 14:56:26,802 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 [2020-07-10 14:56:26,802 INFO L263 TraceCheckUtils]: 16: Hoare triple {714#(<= |fibo1_#in~n| 2)} call #t~ret1 := fibo2(~n - 2); {685#true} is VALID [2020-07-10 14:56:26,803 INFO L280 TraceCheckUtils]: 17: Hoare triple {685#true} ~n := #in~n; {685#true} is VALID [2020-07-10 14:56:26,803 INFO L280 TraceCheckUtils]: 18: Hoare triple {685#true} assume ~n < 1;#res := 0; {685#true} is VALID [2020-07-10 14:56:26,803 INFO L280 TraceCheckUtils]: 19: Hoare triple {685#true} assume true; {685#true} is VALID [2020-07-10 14:56:26,804 INFO L275 TraceCheckUtils]: 20: Hoare quadruple {685#true} {714#(<= |fibo1_#in~n| 2)} #59#return; {714#(<= |fibo1_#in~n| 2)} is VALID [2020-07-10 14:56:26,804 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 [2020-07-10 14:56:26,805 INFO L280 TraceCheckUtils]: 22: Hoare triple {714#(<= |fibo1_#in~n| 2)} assume true; {714#(<= |fibo1_#in~n| 2)} is VALID [2020-07-10 14:56:26,806 INFO L275 TraceCheckUtils]: 23: Hoare quadruple {714#(<= |fibo1_#in~n| 2)} {689#(<= 4 main_~x~0)} #51#return; {686#false} is VALID [2020-07-10 14:56:26,806 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 [2020-07-10 14:56:26,806 INFO L280 TraceCheckUtils]: 25: Hoare triple {686#false} assume 3 != ~result~0; {686#false} is VALID [2020-07-10 14:56:26,806 INFO L280 TraceCheckUtils]: 26: Hoare triple {686#false} assume !false; {686#false} is VALID [2020-07-10 14:56:26,807 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-10 14:56:26,808 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367689815] [2020-07-10 14:56:26,808 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1552066150] [2020-07-10 14:56:26,808 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 [2020-07-10 14:56:26,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:56:26,830 INFO L264 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-10 14:56:26,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:56:26,845 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-10 14:56:26,941 INFO L263 TraceCheckUtils]: 0: Hoare triple {685#true} call ULTIMATE.init(); {685#true} is VALID [2020-07-10 14:56:26,941 INFO L280 TraceCheckUtils]: 1: Hoare triple {685#true} assume true; {685#true} is VALID [2020-07-10 14:56:26,942 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {685#true} {685#true} #47#return; {685#true} is VALID [2020-07-10 14:56:26,942 INFO L263 TraceCheckUtils]: 3: Hoare triple {685#true} call #t~ret5 := main(); {685#true} is VALID [2020-07-10 14:56:26,943 INFO L280 TraceCheckUtils]: 4: Hoare triple {685#true} ~x~0 := 4; {689#(<= 4 main_~x~0)} is VALID [2020-07-10 14:56:26,943 INFO L263 TraceCheckUtils]: 5: Hoare triple {689#(<= 4 main_~x~0)} call #t~ret4 := fibo1(~x~0); {685#true} is VALID [2020-07-10 14:56:26,943 INFO L280 TraceCheckUtils]: 6: Hoare triple {685#true} ~n := #in~n; {742#(<= |fibo1_#in~n| fibo1_~n)} is VALID [2020-07-10 14:56:26,944 INFO L280 TraceCheckUtils]: 7: Hoare triple {742#(<= |fibo1_#in~n| fibo1_~n)} assume !(~n < 1); {742#(<= |fibo1_#in~n| fibo1_~n)} is VALID [2020-07-10 14:56:26,944 INFO L280 TraceCheckUtils]: 8: Hoare triple {742#(<= |fibo1_#in~n| fibo1_~n)} assume !(1 == ~n); {742#(<= |fibo1_#in~n| fibo1_~n)} is VALID [2020-07-10 14:56:26,944 INFO L263 TraceCheckUtils]: 9: Hoare triple {742#(<= |fibo1_#in~n| fibo1_~n)} call #t~ret0 := fibo2(~n - 1); {685#true} is VALID [2020-07-10 14:56:26,945 INFO L280 TraceCheckUtils]: 10: Hoare triple {685#true} ~n := #in~n; {755#(<= |fibo2_#in~n| fibo2_~n)} is VALID [2020-07-10 14:56:26,945 INFO L280 TraceCheckUtils]: 11: Hoare triple {755#(<= |fibo2_#in~n| fibo2_~n)} assume !(~n < 1); {755#(<= |fibo2_#in~n| fibo2_~n)} is VALID [2020-07-10 14:56:26,946 INFO L280 TraceCheckUtils]: 12: Hoare triple {755#(<= |fibo2_#in~n| fibo2_~n)} assume 1 == ~n;#res := 1; {720#(<= |fibo2_#in~n| 1)} is VALID [2020-07-10 14:56:26,946 INFO L280 TraceCheckUtils]: 13: Hoare triple {720#(<= |fibo2_#in~n| 1)} assume true; {720#(<= |fibo2_#in~n| 1)} is VALID [2020-07-10 14:56:26,947 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 [2020-07-10 14:56:26,951 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 [2020-07-10 14:56:26,951 INFO L263 TraceCheckUtils]: 16: Hoare triple {714#(<= |fibo1_#in~n| 2)} call #t~ret1 := fibo2(~n - 2); {685#true} is VALID [2020-07-10 14:56:26,951 INFO L280 TraceCheckUtils]: 17: Hoare triple {685#true} ~n := #in~n; {685#true} is VALID [2020-07-10 14:56:26,951 INFO L280 TraceCheckUtils]: 18: Hoare triple {685#true} assume ~n < 1;#res := 0; {685#true} is VALID [2020-07-10 14:56:26,952 INFO L280 TraceCheckUtils]: 19: Hoare triple {685#true} assume true; {685#true} is VALID [2020-07-10 14:56:26,955 INFO L275 TraceCheckUtils]: 20: Hoare quadruple {685#true} {714#(<= |fibo1_#in~n| 2)} #59#return; {714#(<= |fibo1_#in~n| 2)} is VALID [2020-07-10 14:56:26,956 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 [2020-07-10 14:56:26,957 INFO L280 TraceCheckUtils]: 22: Hoare triple {714#(<= |fibo1_#in~n| 2)} assume true; {714#(<= |fibo1_#in~n| 2)} is VALID [2020-07-10 14:56:26,957 INFO L275 TraceCheckUtils]: 23: Hoare quadruple {714#(<= |fibo1_#in~n| 2)} {689#(<= 4 main_~x~0)} #51#return; {686#false} is VALID [2020-07-10 14:56:26,958 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 [2020-07-10 14:56:26,958 INFO L280 TraceCheckUtils]: 25: Hoare triple {686#false} assume 3 != ~result~0; {686#false} is VALID [2020-07-10 14:56:26,958 INFO L280 TraceCheckUtils]: 26: Hoare triple {686#false} assume !false; {686#false} is VALID [2020-07-10 14:56:26,960 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-10 14:56:26,960 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-10 14:56:26,961 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-07-10 14:56:26,961 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882316307] [2020-07-10 14:56:26,961 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 27 [2020-07-10 14:56:26,962 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 14:56:26,962 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states. [2020-07-10 14:56:27,012 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 35 edges. 35 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 14:56:27,013 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-10 14:56:27,013 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-10 14:56:27,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-10 14:56:27,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-07-10 14:56:27,013 INFO L87 Difference]: Start difference. First operand 32 states and 39 transitions. Second operand 9 states. [2020-07-10 14:56:27,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 14:56:27,588 INFO L93 Difference]: Finished difference Result 54 states and 74 transitions. [2020-07-10 14:56:27,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-10 14:56:27,589 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 27 [2020-07-10 14:56:27,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 14:56:27,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-07-10 14:56:27,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 66 transitions. [2020-07-10 14:56:27,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-07-10 14:56:27,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 66 transitions. [2020-07-10 14:56:27,600 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states and 66 transitions. [2020-07-10 14:56:27,679 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 66 edges. 66 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 14:56:27,690 INFO L225 Difference]: With dead ends: 54 [2020-07-10 14:56:27,690 INFO L226 Difference]: Without dead ends: 50 [2020-07-10 14:56:27,690 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 [2020-07-10 14:56:27,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-07-10 14:56:27,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 48. [2020-07-10 14:56:27,716 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 14:56:27,716 INFO L82 GeneralOperation]: Start isEquivalent. First operand 50 states. Second operand 48 states. [2020-07-10 14:56:27,716 INFO L74 IsIncluded]: Start isIncluded. First operand 50 states. Second operand 48 states. [2020-07-10 14:56:27,716 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 48 states. [2020-07-10 14:56:27,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 14:56:27,721 INFO L93 Difference]: Finished difference Result 50 states and 70 transitions. [2020-07-10 14:56:27,721 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 70 transitions. [2020-07-10 14:56:27,724 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 14:56:27,724 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 14:56:27,724 INFO L74 IsIncluded]: Start isIncluded. First operand 48 states. Second operand 50 states. [2020-07-10 14:56:27,724 INFO L87 Difference]: Start difference. First operand 48 states. Second operand 50 states. [2020-07-10 14:56:27,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 14:56:27,728 INFO L93 Difference]: Finished difference Result 50 states and 70 transitions. [2020-07-10 14:56:27,729 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 70 transitions. [2020-07-10 14:56:27,730 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 14:56:27,730 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 14:56:27,730 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 14:56:27,730 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 14:56:27,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-07-10 14:56:27,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 65 transitions. [2020-07-10 14:56:27,734 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 65 transitions. Word has length 27 [2020-07-10 14:56:27,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 14:56:27,735 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 65 transitions. [2020-07-10 14:56:27,735 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-10 14:56:27,735 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 65 transitions. [2020-07-10 14:56:27,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-07-10 14:56:27,737 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 14:56:27,737 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] [2020-07-10 14:56:27,940 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-10 14:56:27,941 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 14:56:27,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 14:56:27,942 INFO L82 PathProgramCache]: Analyzing trace with hash 986908919, now seen corresponding path program 1 times [2020-07-10 14:56:27,942 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-10 14:56:27,943 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549461913] [2020-07-10 14:56:27,943 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 14:56:27,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:56:27,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:56:27,983 INFO L280 TraceCheckUtils]: 0: Hoare triple {1044#true} assume true; {1044#true} is VALID [2020-07-10 14:56:27,983 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {1044#true} {1044#true} #47#return; {1044#true} is VALID [2020-07-10 14:56:27,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:56:28,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:56:28,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:56:28,071 INFO L280 TraceCheckUtils]: 0: Hoare triple {1044#true} ~n := #in~n; {1109#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-10 14:56:28,072 INFO L280 TraceCheckUtils]: 1: Hoare triple {1109#(= fibo1_~n |fibo1_#in~n|)} assume ~n < 1;#res := 0; {1110#(<= |fibo1_#in~n| 0)} is VALID [2020-07-10 14:56:28,073 INFO L280 TraceCheckUtils]: 2: Hoare triple {1110#(<= |fibo1_#in~n| 0)} assume true; {1110#(<= |fibo1_#in~n| 0)} is VALID [2020-07-10 14:56:28,074 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {1110#(<= |fibo1_#in~n| 0)} {1100#(< 1 fibo2_~n)} #53#return; {1045#false} is VALID [2020-07-10 14:56:28,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:56:28,083 INFO L280 TraceCheckUtils]: 0: Hoare triple {1044#true} ~n := #in~n; {1044#true} is VALID [2020-07-10 14:56:28,084 INFO L280 TraceCheckUtils]: 1: Hoare triple {1044#true} assume ~n < 1;#res := 0; {1044#true} is VALID [2020-07-10 14:56:28,084 INFO L280 TraceCheckUtils]: 2: Hoare triple {1044#true} assume true; {1044#true} is VALID [2020-07-10 14:56:28,084 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {1044#true} {1045#false} #55#return; {1045#false} is VALID [2020-07-10 14:56:28,085 INFO L280 TraceCheckUtils]: 0: Hoare triple {1044#true} ~n := #in~n; {1044#true} is VALID [2020-07-10 14:56:28,086 INFO L280 TraceCheckUtils]: 1: Hoare triple {1044#true} assume !(~n < 1); {1099#(< 0 fibo2_~n)} is VALID [2020-07-10 14:56:28,087 INFO L280 TraceCheckUtils]: 2: Hoare triple {1099#(< 0 fibo2_~n)} assume !(1 == ~n); {1100#(< 1 fibo2_~n)} is VALID [2020-07-10 14:56:28,087 INFO L263 TraceCheckUtils]: 3: Hoare triple {1100#(< 1 fibo2_~n)} call #t~ret2 := fibo1(~n - 1); {1044#true} is VALID [2020-07-10 14:56:28,089 INFO L280 TraceCheckUtils]: 4: Hoare triple {1044#true} ~n := #in~n; {1109#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-10 14:56:28,090 INFO L280 TraceCheckUtils]: 5: Hoare triple {1109#(= fibo1_~n |fibo1_#in~n|)} assume ~n < 1;#res := 0; {1110#(<= |fibo1_#in~n| 0)} is VALID [2020-07-10 14:56:28,091 INFO L280 TraceCheckUtils]: 6: Hoare triple {1110#(<= |fibo1_#in~n| 0)} assume true; {1110#(<= |fibo1_#in~n| 0)} is VALID [2020-07-10 14:56:28,092 INFO L275 TraceCheckUtils]: 7: Hoare quadruple {1110#(<= |fibo1_#in~n| 0)} {1100#(< 1 fibo2_~n)} #53#return; {1045#false} is VALID [2020-07-10 14:56:28,092 INFO L280 TraceCheckUtils]: 8: Hoare triple {1045#false} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {1045#false} is VALID [2020-07-10 14:56:28,092 INFO L263 TraceCheckUtils]: 9: Hoare triple {1045#false} call #t~ret3 := fibo1(~n - 2); {1044#true} is VALID [2020-07-10 14:56:28,093 INFO L280 TraceCheckUtils]: 10: Hoare triple {1044#true} ~n := #in~n; {1044#true} is VALID [2020-07-10 14:56:28,093 INFO L280 TraceCheckUtils]: 11: Hoare triple {1044#true} assume ~n < 1;#res := 0; {1044#true} is VALID [2020-07-10 14:56:28,093 INFO L280 TraceCheckUtils]: 12: Hoare triple {1044#true} assume true; {1044#true} is VALID [2020-07-10 14:56:28,093 INFO L275 TraceCheckUtils]: 13: Hoare quadruple {1044#true} {1045#false} #55#return; {1045#false} is VALID [2020-07-10 14:56:28,094 INFO L280 TraceCheckUtils]: 14: Hoare triple {1045#false} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647;#res := #t~ret2 + #t~ret3;havoc #t~ret2;havoc #t~ret3; {1045#false} is VALID [2020-07-10 14:56:28,094 INFO L280 TraceCheckUtils]: 15: Hoare triple {1045#false} assume true; {1045#false} is VALID [2020-07-10 14:56:28,094 INFO L275 TraceCheckUtils]: 16: Hoare quadruple {1045#false} {1044#true} #57#return; {1045#false} is VALID [2020-07-10 14:56:28,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:56:28,099 INFO L280 TraceCheckUtils]: 0: Hoare triple {1044#true} ~n := #in~n; {1044#true} is VALID [2020-07-10 14:56:28,100 INFO L280 TraceCheckUtils]: 1: Hoare triple {1044#true} assume ~n < 1;#res := 0; {1044#true} is VALID [2020-07-10 14:56:28,100 INFO L280 TraceCheckUtils]: 2: Hoare triple {1044#true} assume true; {1044#true} is VALID [2020-07-10 14:56:28,100 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {1044#true} {1045#false} #59#return; {1045#false} is VALID [2020-07-10 14:56:28,101 INFO L280 TraceCheckUtils]: 0: Hoare triple {1044#true} ~n := #in~n; {1044#true} is VALID [2020-07-10 14:56:28,101 INFO L280 TraceCheckUtils]: 1: Hoare triple {1044#true} assume !(~n < 1); {1044#true} is VALID [2020-07-10 14:56:28,101 INFO L280 TraceCheckUtils]: 2: Hoare triple {1044#true} assume !(1 == ~n); {1044#true} is VALID [2020-07-10 14:56:28,101 INFO L263 TraceCheckUtils]: 3: Hoare triple {1044#true} call #t~ret0 := fibo2(~n - 1); {1044#true} is VALID [2020-07-10 14:56:28,102 INFO L280 TraceCheckUtils]: 4: Hoare triple {1044#true} ~n := #in~n; {1044#true} is VALID [2020-07-10 14:56:28,102 INFO L280 TraceCheckUtils]: 5: Hoare triple {1044#true} assume !(~n < 1); {1099#(< 0 fibo2_~n)} is VALID [2020-07-10 14:56:28,103 INFO L280 TraceCheckUtils]: 6: Hoare triple {1099#(< 0 fibo2_~n)} assume !(1 == ~n); {1100#(< 1 fibo2_~n)} is VALID [2020-07-10 14:56:28,103 INFO L263 TraceCheckUtils]: 7: Hoare triple {1100#(< 1 fibo2_~n)} call #t~ret2 := fibo1(~n - 1); {1044#true} is VALID [2020-07-10 14:56:28,104 INFO L280 TraceCheckUtils]: 8: Hoare triple {1044#true} ~n := #in~n; {1109#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-10 14:56:28,105 INFO L280 TraceCheckUtils]: 9: Hoare triple {1109#(= fibo1_~n |fibo1_#in~n|)} assume ~n < 1;#res := 0; {1110#(<= |fibo1_#in~n| 0)} is VALID [2020-07-10 14:56:28,105 INFO L280 TraceCheckUtils]: 10: Hoare triple {1110#(<= |fibo1_#in~n| 0)} assume true; {1110#(<= |fibo1_#in~n| 0)} is VALID [2020-07-10 14:56:28,106 INFO L275 TraceCheckUtils]: 11: Hoare quadruple {1110#(<= |fibo1_#in~n| 0)} {1100#(< 1 fibo2_~n)} #53#return; {1045#false} is VALID [2020-07-10 14:56:28,107 INFO L280 TraceCheckUtils]: 12: Hoare triple {1045#false} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {1045#false} is VALID [2020-07-10 14:56:28,107 INFO L263 TraceCheckUtils]: 13: Hoare triple {1045#false} call #t~ret3 := fibo1(~n - 2); {1044#true} is VALID [2020-07-10 14:56:28,107 INFO L280 TraceCheckUtils]: 14: Hoare triple {1044#true} ~n := #in~n; {1044#true} is VALID [2020-07-10 14:56:28,107 INFO L280 TraceCheckUtils]: 15: Hoare triple {1044#true} assume ~n < 1;#res := 0; {1044#true} is VALID [2020-07-10 14:56:28,108 INFO L280 TraceCheckUtils]: 16: Hoare triple {1044#true} assume true; {1044#true} is VALID [2020-07-10 14:56:28,108 INFO L275 TraceCheckUtils]: 17: Hoare quadruple {1044#true} {1045#false} #55#return; {1045#false} is VALID [2020-07-10 14:56:28,108 INFO L280 TraceCheckUtils]: 18: Hoare triple {1045#false} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647;#res := #t~ret2 + #t~ret3;havoc #t~ret2;havoc #t~ret3; {1045#false} is VALID [2020-07-10 14:56:28,108 INFO L280 TraceCheckUtils]: 19: Hoare triple {1045#false} assume true; {1045#false} is VALID [2020-07-10 14:56:28,109 INFO L275 TraceCheckUtils]: 20: Hoare quadruple {1045#false} {1044#true} #57#return; {1045#false} is VALID [2020-07-10 14:56:28,109 INFO L280 TraceCheckUtils]: 21: Hoare triple {1045#false} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {1045#false} is VALID [2020-07-10 14:56:28,109 INFO L263 TraceCheckUtils]: 22: Hoare triple {1045#false} call #t~ret1 := fibo2(~n - 2); {1044#true} is VALID [2020-07-10 14:56:28,110 INFO L280 TraceCheckUtils]: 23: Hoare triple {1044#true} ~n := #in~n; {1044#true} is VALID [2020-07-10 14:56:28,110 INFO L280 TraceCheckUtils]: 24: Hoare triple {1044#true} assume ~n < 1;#res := 0; {1044#true} is VALID [2020-07-10 14:56:28,110 INFO L280 TraceCheckUtils]: 25: Hoare triple {1044#true} assume true; {1044#true} is VALID [2020-07-10 14:56:28,110 INFO L275 TraceCheckUtils]: 26: Hoare quadruple {1044#true} {1045#false} #59#return; {1045#false} is VALID [2020-07-10 14:56:28,111 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 [2020-07-10 14:56:28,111 INFO L280 TraceCheckUtils]: 28: Hoare triple {1045#false} assume true; {1045#false} is VALID [2020-07-10 14:56:28,111 INFO L275 TraceCheckUtils]: 29: Hoare quadruple {1045#false} {1044#true} #51#return; {1045#false} is VALID [2020-07-10 14:56:28,112 INFO L263 TraceCheckUtils]: 0: Hoare triple {1044#true} call ULTIMATE.init(); {1044#true} is VALID [2020-07-10 14:56:28,112 INFO L280 TraceCheckUtils]: 1: Hoare triple {1044#true} assume true; {1044#true} is VALID [2020-07-10 14:56:28,112 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {1044#true} {1044#true} #47#return; {1044#true} is VALID [2020-07-10 14:56:28,113 INFO L263 TraceCheckUtils]: 3: Hoare triple {1044#true} call #t~ret5 := main(); {1044#true} is VALID [2020-07-10 14:56:28,113 INFO L280 TraceCheckUtils]: 4: Hoare triple {1044#true} ~x~0 := 4; {1044#true} is VALID [2020-07-10 14:56:28,113 INFO L263 TraceCheckUtils]: 5: Hoare triple {1044#true} call #t~ret4 := fibo1(~x~0); {1044#true} is VALID [2020-07-10 14:56:28,113 INFO L280 TraceCheckUtils]: 6: Hoare triple {1044#true} ~n := #in~n; {1044#true} is VALID [2020-07-10 14:56:28,114 INFO L280 TraceCheckUtils]: 7: Hoare triple {1044#true} assume !(~n < 1); {1044#true} is VALID [2020-07-10 14:56:28,114 INFO L280 TraceCheckUtils]: 8: Hoare triple {1044#true} assume !(1 == ~n); {1044#true} is VALID [2020-07-10 14:56:28,114 INFO L263 TraceCheckUtils]: 9: Hoare triple {1044#true} call #t~ret0 := fibo2(~n - 1); {1044#true} is VALID [2020-07-10 14:56:28,114 INFO L280 TraceCheckUtils]: 10: Hoare triple {1044#true} ~n := #in~n; {1044#true} is VALID [2020-07-10 14:56:28,115 INFO L280 TraceCheckUtils]: 11: Hoare triple {1044#true} assume !(~n < 1); {1099#(< 0 fibo2_~n)} is VALID [2020-07-10 14:56:28,116 INFO L280 TraceCheckUtils]: 12: Hoare triple {1099#(< 0 fibo2_~n)} assume !(1 == ~n); {1100#(< 1 fibo2_~n)} is VALID [2020-07-10 14:56:28,116 INFO L263 TraceCheckUtils]: 13: Hoare triple {1100#(< 1 fibo2_~n)} call #t~ret2 := fibo1(~n - 1); {1044#true} is VALID [2020-07-10 14:56:28,117 INFO L280 TraceCheckUtils]: 14: Hoare triple {1044#true} ~n := #in~n; {1109#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-10 14:56:28,118 INFO L280 TraceCheckUtils]: 15: Hoare triple {1109#(= fibo1_~n |fibo1_#in~n|)} assume ~n < 1;#res := 0; {1110#(<= |fibo1_#in~n| 0)} is VALID [2020-07-10 14:56:28,118 INFO L280 TraceCheckUtils]: 16: Hoare triple {1110#(<= |fibo1_#in~n| 0)} assume true; {1110#(<= |fibo1_#in~n| 0)} is VALID [2020-07-10 14:56:28,120 INFO L275 TraceCheckUtils]: 17: Hoare quadruple {1110#(<= |fibo1_#in~n| 0)} {1100#(< 1 fibo2_~n)} #53#return; {1045#false} is VALID [2020-07-10 14:56:28,120 INFO L280 TraceCheckUtils]: 18: Hoare triple {1045#false} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {1045#false} is VALID [2020-07-10 14:56:28,120 INFO L263 TraceCheckUtils]: 19: Hoare triple {1045#false} call #t~ret3 := fibo1(~n - 2); {1044#true} is VALID [2020-07-10 14:56:28,120 INFO L280 TraceCheckUtils]: 20: Hoare triple {1044#true} ~n := #in~n; {1044#true} is VALID [2020-07-10 14:56:28,120 INFO L280 TraceCheckUtils]: 21: Hoare triple {1044#true} assume ~n < 1;#res := 0; {1044#true} is VALID [2020-07-10 14:56:28,121 INFO L280 TraceCheckUtils]: 22: Hoare triple {1044#true} assume true; {1044#true} is VALID [2020-07-10 14:56:28,121 INFO L275 TraceCheckUtils]: 23: Hoare quadruple {1044#true} {1045#false} #55#return; {1045#false} is VALID [2020-07-10 14:56:28,121 INFO L280 TraceCheckUtils]: 24: Hoare triple {1045#false} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647;#res := #t~ret2 + #t~ret3;havoc #t~ret2;havoc #t~ret3; {1045#false} is VALID [2020-07-10 14:56:28,121 INFO L280 TraceCheckUtils]: 25: Hoare triple {1045#false} assume true; {1045#false} is VALID [2020-07-10 14:56:28,122 INFO L275 TraceCheckUtils]: 26: Hoare quadruple {1045#false} {1044#true} #57#return; {1045#false} is VALID [2020-07-10 14:56:28,122 INFO L280 TraceCheckUtils]: 27: Hoare triple {1045#false} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {1045#false} is VALID [2020-07-10 14:56:28,122 INFO L263 TraceCheckUtils]: 28: Hoare triple {1045#false} call #t~ret1 := fibo2(~n - 2); {1044#true} is VALID [2020-07-10 14:56:28,122 INFO L280 TraceCheckUtils]: 29: Hoare triple {1044#true} ~n := #in~n; {1044#true} is VALID [2020-07-10 14:56:28,122 INFO L280 TraceCheckUtils]: 30: Hoare triple {1044#true} assume ~n < 1;#res := 0; {1044#true} is VALID [2020-07-10 14:56:28,123 INFO L280 TraceCheckUtils]: 31: Hoare triple {1044#true} assume true; {1044#true} is VALID [2020-07-10 14:56:28,123 INFO L275 TraceCheckUtils]: 32: Hoare quadruple {1044#true} {1045#false} #59#return; {1045#false} is VALID [2020-07-10 14:56:28,123 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 [2020-07-10 14:56:28,123 INFO L280 TraceCheckUtils]: 34: Hoare triple {1045#false} assume true; {1045#false} is VALID [2020-07-10 14:56:28,124 INFO L275 TraceCheckUtils]: 35: Hoare quadruple {1045#false} {1044#true} #51#return; {1045#false} is VALID [2020-07-10 14:56:28,124 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 [2020-07-10 14:56:28,124 INFO L280 TraceCheckUtils]: 37: Hoare triple {1045#false} assume 3 != ~result~0; {1045#false} is VALID [2020-07-10 14:56:28,124 INFO L280 TraceCheckUtils]: 38: Hoare triple {1045#false} assume !false; {1045#false} is VALID [2020-07-10 14:56:28,126 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-07-10 14:56:28,126 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549461913] [2020-07-10 14:56:28,126 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2103771199] [2020-07-10 14:56:28,127 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) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-10 14:56:28,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:56:28,161 INFO L264 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-10 14:56:28,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:56:28,171 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-10 14:56:28,331 INFO L263 TraceCheckUtils]: 0: Hoare triple {1044#true} call ULTIMATE.init(); {1044#true} is VALID [2020-07-10 14:56:28,332 INFO L280 TraceCheckUtils]: 1: Hoare triple {1044#true} assume true; {1044#true} is VALID [2020-07-10 14:56:28,332 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {1044#true} {1044#true} #47#return; {1044#true} is VALID [2020-07-10 14:56:28,332 INFO L263 TraceCheckUtils]: 3: Hoare triple {1044#true} call #t~ret5 := main(); {1044#true} is VALID [2020-07-10 14:56:28,333 INFO L280 TraceCheckUtils]: 4: Hoare triple {1044#true} ~x~0 := 4; {1126#(<= 4 main_~x~0)} is VALID [2020-07-10 14:56:28,333 INFO L263 TraceCheckUtils]: 5: Hoare triple {1126#(<= 4 main_~x~0)} call #t~ret4 := fibo1(~x~0); {1044#true} is VALID [2020-07-10 14:56:28,335 INFO L280 TraceCheckUtils]: 6: Hoare triple {1044#true} ~n := #in~n; {1133#(<= |fibo1_#in~n| fibo1_~n)} is VALID [2020-07-10 14:56:28,336 INFO L280 TraceCheckUtils]: 7: Hoare triple {1133#(<= |fibo1_#in~n| fibo1_~n)} assume !(~n < 1); {1133#(<= |fibo1_#in~n| fibo1_~n)} is VALID [2020-07-10 14:56:28,337 INFO L280 TraceCheckUtils]: 8: Hoare triple {1133#(<= |fibo1_#in~n| fibo1_~n)} assume !(1 == ~n); {1133#(<= |fibo1_#in~n| fibo1_~n)} is VALID [2020-07-10 14:56:28,337 INFO L263 TraceCheckUtils]: 9: Hoare triple {1133#(<= |fibo1_#in~n| fibo1_~n)} call #t~ret0 := fibo2(~n - 1); {1044#true} is VALID [2020-07-10 14:56:28,338 INFO L280 TraceCheckUtils]: 10: Hoare triple {1044#true} ~n := #in~n; {1146#(<= |fibo2_#in~n| fibo2_~n)} is VALID [2020-07-10 14:56:28,344 INFO L280 TraceCheckUtils]: 11: Hoare triple {1146#(<= |fibo2_#in~n| fibo2_~n)} assume !(~n < 1); {1146#(<= |fibo2_#in~n| fibo2_~n)} is VALID [2020-07-10 14:56:28,348 INFO L280 TraceCheckUtils]: 12: Hoare triple {1146#(<= |fibo2_#in~n| fibo2_~n)} assume !(1 == ~n); {1146#(<= |fibo2_#in~n| fibo2_~n)} is VALID [2020-07-10 14:56:28,348 INFO L263 TraceCheckUtils]: 13: Hoare triple {1146#(<= |fibo2_#in~n| fibo2_~n)} call #t~ret2 := fibo1(~n - 1); {1044#true} is VALID [2020-07-10 14:56:28,349 INFO L280 TraceCheckUtils]: 14: Hoare triple {1044#true} ~n := #in~n; {1133#(<= |fibo1_#in~n| fibo1_~n)} is VALID [2020-07-10 14:56:28,350 INFO L280 TraceCheckUtils]: 15: Hoare triple {1133#(<= |fibo1_#in~n| fibo1_~n)} assume ~n < 1;#res := 0; {1110#(<= |fibo1_#in~n| 0)} is VALID [2020-07-10 14:56:28,350 INFO L280 TraceCheckUtils]: 16: Hoare triple {1110#(<= |fibo1_#in~n| 0)} assume true; {1110#(<= |fibo1_#in~n| 0)} is VALID [2020-07-10 14:56:28,352 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 [2020-07-10 14:56:28,353 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 [2020-07-10 14:56:28,353 INFO L263 TraceCheckUtils]: 19: Hoare triple {1168#(<= |fibo2_#in~n| 1)} call #t~ret3 := fibo1(~n - 2); {1044#true} is VALID [2020-07-10 14:56:28,353 INFO L280 TraceCheckUtils]: 20: Hoare triple {1044#true} ~n := #in~n; {1044#true} is VALID [2020-07-10 14:56:28,353 INFO L280 TraceCheckUtils]: 21: Hoare triple {1044#true} assume ~n < 1;#res := 0; {1044#true} is VALID [2020-07-10 14:56:28,354 INFO L280 TraceCheckUtils]: 22: Hoare triple {1044#true} assume true; {1044#true} is VALID [2020-07-10 14:56:28,355 INFO L275 TraceCheckUtils]: 23: Hoare quadruple {1044#true} {1168#(<= |fibo2_#in~n| 1)} #55#return; {1168#(<= |fibo2_#in~n| 1)} is VALID [2020-07-10 14:56:28,356 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~ret2;havoc #t~ret3; {1168#(<= |fibo2_#in~n| 1)} is VALID [2020-07-10 14:56:28,356 INFO L280 TraceCheckUtils]: 25: Hoare triple {1168#(<= |fibo2_#in~n| 1)} assume true; {1168#(<= |fibo2_#in~n| 1)} is VALID [2020-07-10 14:56:28,357 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 [2020-07-10 14:56:28,358 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 [2020-07-10 14:56:28,358 INFO L263 TraceCheckUtils]: 28: Hoare triple {1196#(<= |fibo1_#in~n| 2)} call #t~ret1 := fibo2(~n - 2); {1044#true} is VALID [2020-07-10 14:56:28,358 INFO L280 TraceCheckUtils]: 29: Hoare triple {1044#true} ~n := #in~n; {1044#true} is VALID [2020-07-10 14:56:28,359 INFO L280 TraceCheckUtils]: 30: Hoare triple {1044#true} assume ~n < 1;#res := 0; {1044#true} is VALID [2020-07-10 14:56:28,359 INFO L280 TraceCheckUtils]: 31: Hoare triple {1044#true} assume true; {1044#true} is VALID [2020-07-10 14:56:28,360 INFO L275 TraceCheckUtils]: 32: Hoare quadruple {1044#true} {1196#(<= |fibo1_#in~n| 2)} #59#return; {1196#(<= |fibo1_#in~n| 2)} is VALID [2020-07-10 14:56:28,361 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 [2020-07-10 14:56:28,362 INFO L280 TraceCheckUtils]: 34: Hoare triple {1196#(<= |fibo1_#in~n| 2)} assume true; {1196#(<= |fibo1_#in~n| 2)} is VALID [2020-07-10 14:56:28,363 INFO L275 TraceCheckUtils]: 35: Hoare quadruple {1196#(<= |fibo1_#in~n| 2)} {1126#(<= 4 main_~x~0)} #51#return; {1045#false} is VALID [2020-07-10 14:56:28,364 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 [2020-07-10 14:56:28,364 INFO L280 TraceCheckUtils]: 37: Hoare triple {1045#false} assume 3 != ~result~0; {1045#false} is VALID [2020-07-10 14:56:28,364 INFO L280 TraceCheckUtils]: 38: Hoare triple {1045#false} assume !false; {1045#false} is VALID [2020-07-10 14:56:28,366 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-10 14:56:28,366 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-10 14:56:28,366 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8] total 11 [2020-07-10 14:56:28,366 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938007620] [2020-07-10 14:56:28,367 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 39 [2020-07-10 14:56:28,373 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 14:56:28,374 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 11 states. [2020-07-10 14:56:28,431 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 61 edges. 61 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 14:56:28,431 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-10 14:56:28,431 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-10 14:56:28,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-10 14:56:28,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-07-10 14:56:28,432 INFO L87 Difference]: Start difference. First operand 48 states and 65 transitions. Second operand 11 states. [2020-07-10 14:56:29,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 14:56:29,347 INFO L93 Difference]: Finished difference Result 108 states and 170 transitions. [2020-07-10 14:56:29,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-07-10 14:56:29,348 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 39 [2020-07-10 14:56:29,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 14:56:29,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-07-10 14:56:29,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 102 transitions. [2020-07-10 14:56:29,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-07-10 14:56:29,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 102 transitions. [2020-07-10 14:56:29,359 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 13 states and 102 transitions. [2020-07-10 14:56:29,496 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 102 edges. 102 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 14:56:29,501 INFO L225 Difference]: With dead ends: 108 [2020-07-10 14:56:29,501 INFO L226 Difference]: Without dead ends: 66 [2020-07-10 14:56:29,503 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2020-07-10 14:56:29,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-07-10 14:56:29,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2020-07-10 14:56:29,545 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 14:56:29,546 INFO L82 GeneralOperation]: Start isEquivalent. First operand 66 states. Second operand 66 states. [2020-07-10 14:56:29,546 INFO L74 IsIncluded]: Start isIncluded. First operand 66 states. Second operand 66 states. [2020-07-10 14:56:29,546 INFO L87 Difference]: Start difference. First operand 66 states. Second operand 66 states. [2020-07-10 14:56:29,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 14:56:29,555 INFO L93 Difference]: Finished difference Result 66 states and 95 transitions. [2020-07-10 14:56:29,555 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 95 transitions. [2020-07-10 14:56:29,557 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 14:56:29,557 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 14:56:29,557 INFO L74 IsIncluded]: Start isIncluded. First operand 66 states. Second operand 66 states. [2020-07-10 14:56:29,557 INFO L87 Difference]: Start difference. First operand 66 states. Second operand 66 states. [2020-07-10 14:56:29,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 14:56:29,569 INFO L93 Difference]: Finished difference Result 66 states and 95 transitions. [2020-07-10 14:56:29,569 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 95 transitions. [2020-07-10 14:56:29,571 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 14:56:29,571 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 14:56:29,571 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 14:56:29,572 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 14:56:29,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-07-10 14:56:29,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 95 transitions. [2020-07-10 14:56:29,577 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 95 transitions. Word has length 39 [2020-07-10 14:56:29,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 14:56:29,578 INFO L479 AbstractCegarLoop]: Abstraction has 66 states and 95 transitions. [2020-07-10 14:56:29,578 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-10 14:56:29,578 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 95 transitions. [2020-07-10 14:56:29,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-07-10 14:56:29,581 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 14:56:29,581 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] [2020-07-10 14:56:29,785 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-10 14:56:29,786 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 14:56:29,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 14:56:29,787 INFO L82 PathProgramCache]: Analyzing trace with hash -2100495745, now seen corresponding path program 1 times [2020-07-10 14:56:29,787 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-10 14:56:29,788 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803680341] [2020-07-10 14:56:29,788 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 14:56:29,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:56:29,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:56:29,824 INFO L280 TraceCheckUtils]: 0: Hoare triple {1610#true} assume true; {1610#true} is VALID [2020-07-10 14:56:29,824 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {1610#true} {1610#true} #47#return; {1610#true} is VALID [2020-07-10 14:56:29,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:56:29,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:56:29,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:56:29,961 INFO L280 TraceCheckUtils]: 0: Hoare triple {1610#true} ~n := #in~n; {1610#true} is VALID [2020-07-10 14:56:29,961 INFO L280 TraceCheckUtils]: 1: Hoare triple {1610#true} assume !(~n < 1); {1610#true} is VALID [2020-07-10 14:56:29,961 INFO L280 TraceCheckUtils]: 2: Hoare triple {1610#true} assume 1 == ~n;#res := 1; {1610#true} is VALID [2020-07-10 14:56:29,962 INFO L280 TraceCheckUtils]: 3: Hoare triple {1610#true} assume true; {1610#true} is VALID [2020-07-10 14:56:29,963 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {1610#true} {1671#(<= 2 |fibo2_#in~n|)} #53#return; {1671#(<= 2 |fibo2_#in~n|)} is VALID [2020-07-10 14:56:29,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:56:29,969 INFO L280 TraceCheckUtils]: 0: Hoare triple {1610#true} ~n := #in~n; {1610#true} is VALID [2020-07-10 14:56:29,969 INFO L280 TraceCheckUtils]: 1: Hoare triple {1610#true} assume ~n < 1;#res := 0; {1610#true} is VALID [2020-07-10 14:56:29,970 INFO L280 TraceCheckUtils]: 2: Hoare triple {1610#true} assume true; {1610#true} is VALID [2020-07-10 14:56:29,971 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {1610#true} {1671#(<= 2 |fibo2_#in~n|)} #55#return; {1671#(<= 2 |fibo2_#in~n|)} is VALID [2020-07-10 14:56:29,971 INFO L280 TraceCheckUtils]: 0: Hoare triple {1610#true} ~n := #in~n; {1669#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-10 14:56:29,972 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 [2020-07-10 14:56:29,975 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 [2020-07-10 14:56:29,975 INFO L263 TraceCheckUtils]: 3: Hoare triple {1671#(<= 2 |fibo2_#in~n|)} call #t~ret2 := fibo1(~n - 1); {1610#true} is VALID [2020-07-10 14:56:29,975 INFO L280 TraceCheckUtils]: 4: Hoare triple {1610#true} ~n := #in~n; {1610#true} is VALID [2020-07-10 14:56:29,975 INFO L280 TraceCheckUtils]: 5: Hoare triple {1610#true} assume !(~n < 1); {1610#true} is VALID [2020-07-10 14:56:29,976 INFO L280 TraceCheckUtils]: 6: Hoare triple {1610#true} assume 1 == ~n;#res := 1; {1610#true} is VALID [2020-07-10 14:56:29,976 INFO L280 TraceCheckUtils]: 7: Hoare triple {1610#true} assume true; {1610#true} is VALID [2020-07-10 14:56:29,977 INFO L275 TraceCheckUtils]: 8: Hoare quadruple {1610#true} {1671#(<= 2 |fibo2_#in~n|)} #53#return; {1671#(<= 2 |fibo2_#in~n|)} is VALID [2020-07-10 14:56:29,977 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 [2020-07-10 14:56:29,978 INFO L263 TraceCheckUtils]: 10: Hoare triple {1671#(<= 2 |fibo2_#in~n|)} call #t~ret3 := fibo1(~n - 2); {1610#true} is VALID [2020-07-10 14:56:29,978 INFO L280 TraceCheckUtils]: 11: Hoare triple {1610#true} ~n := #in~n; {1610#true} is VALID [2020-07-10 14:56:29,978 INFO L280 TraceCheckUtils]: 12: Hoare triple {1610#true} assume ~n < 1;#res := 0; {1610#true} is VALID [2020-07-10 14:56:29,978 INFO L280 TraceCheckUtils]: 13: Hoare triple {1610#true} assume true; {1610#true} is VALID [2020-07-10 14:56:29,979 INFO L275 TraceCheckUtils]: 14: Hoare quadruple {1610#true} {1671#(<= 2 |fibo2_#in~n|)} #55#return; {1671#(<= 2 |fibo2_#in~n|)} is VALID [2020-07-10 14:56:29,980 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~ret2;havoc #t~ret3; {1671#(<= 2 |fibo2_#in~n|)} is VALID [2020-07-10 14:56:29,980 INFO L280 TraceCheckUtils]: 16: Hoare triple {1671#(<= 2 |fibo2_#in~n|)} assume true; {1671#(<= 2 |fibo2_#in~n|)} is VALID [2020-07-10 14:56:29,981 INFO L275 TraceCheckUtils]: 17: Hoare quadruple {1671#(<= 2 |fibo2_#in~n|)} {1610#true} #57#return; {1664#(<= 3 fibo1_~n)} is VALID [2020-07-10 14:56:29,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:56:30,002 INFO L280 TraceCheckUtils]: 0: Hoare triple {1610#true} ~n := #in~n; {1669#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-10 14:56:30,003 INFO L280 TraceCheckUtils]: 1: Hoare triple {1669#(= fibo2_~n |fibo2_#in~n|)} assume ~n < 1;#res := 0; {1681#(<= |fibo2_#in~n| 0)} is VALID [2020-07-10 14:56:30,004 INFO L280 TraceCheckUtils]: 2: Hoare triple {1681#(<= |fibo2_#in~n| 0)} assume true; {1681#(<= |fibo2_#in~n| 0)} is VALID [2020-07-10 14:56:30,005 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {1681#(<= |fibo2_#in~n| 0)} {1664#(<= 3 fibo1_~n)} #59#return; {1611#false} is VALID [2020-07-10 14:56:30,005 INFO L280 TraceCheckUtils]: 0: Hoare triple {1610#true} ~n := #in~n; {1610#true} is VALID [2020-07-10 14:56:30,006 INFO L280 TraceCheckUtils]: 1: Hoare triple {1610#true} assume !(~n < 1); {1610#true} is VALID [2020-07-10 14:56:30,006 INFO L280 TraceCheckUtils]: 2: Hoare triple {1610#true} assume !(1 == ~n); {1610#true} is VALID [2020-07-10 14:56:30,006 INFO L263 TraceCheckUtils]: 3: Hoare triple {1610#true} call #t~ret0 := fibo2(~n - 1); {1610#true} is VALID [2020-07-10 14:56:30,008 INFO L280 TraceCheckUtils]: 4: Hoare triple {1610#true} ~n := #in~n; {1669#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-10 14:56:30,008 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 [2020-07-10 14:56:30,009 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 [2020-07-10 14:56:30,009 INFO L263 TraceCheckUtils]: 7: Hoare triple {1671#(<= 2 |fibo2_#in~n|)} call #t~ret2 := fibo1(~n - 1); {1610#true} is VALID [2020-07-10 14:56:30,009 INFO L280 TraceCheckUtils]: 8: Hoare triple {1610#true} ~n := #in~n; {1610#true} is VALID [2020-07-10 14:56:30,010 INFO L280 TraceCheckUtils]: 9: Hoare triple {1610#true} assume !(~n < 1); {1610#true} is VALID [2020-07-10 14:56:30,010 INFO L280 TraceCheckUtils]: 10: Hoare triple {1610#true} assume 1 == ~n;#res := 1; {1610#true} is VALID [2020-07-10 14:56:30,011 INFO L280 TraceCheckUtils]: 11: Hoare triple {1610#true} assume true; {1610#true} is VALID [2020-07-10 14:56:30,012 INFO L275 TraceCheckUtils]: 12: Hoare quadruple {1610#true} {1671#(<= 2 |fibo2_#in~n|)} #53#return; {1671#(<= 2 |fibo2_#in~n|)} is VALID [2020-07-10 14:56:30,013 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 [2020-07-10 14:56:30,014 INFO L263 TraceCheckUtils]: 14: Hoare triple {1671#(<= 2 |fibo2_#in~n|)} call #t~ret3 := fibo1(~n - 2); {1610#true} is VALID [2020-07-10 14:56:30,014 INFO L280 TraceCheckUtils]: 15: Hoare triple {1610#true} ~n := #in~n; {1610#true} is VALID [2020-07-10 14:56:30,014 INFO L280 TraceCheckUtils]: 16: Hoare triple {1610#true} assume ~n < 1;#res := 0; {1610#true} is VALID [2020-07-10 14:56:30,014 INFO L280 TraceCheckUtils]: 17: Hoare triple {1610#true} assume true; {1610#true} is VALID [2020-07-10 14:56:30,017 INFO L275 TraceCheckUtils]: 18: Hoare quadruple {1610#true} {1671#(<= 2 |fibo2_#in~n|)} #55#return; {1671#(<= 2 |fibo2_#in~n|)} is VALID [2020-07-10 14:56:30,019 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~ret2;havoc #t~ret3; {1671#(<= 2 |fibo2_#in~n|)} is VALID [2020-07-10 14:56:30,020 INFO L280 TraceCheckUtils]: 20: Hoare triple {1671#(<= 2 |fibo2_#in~n|)} assume true; {1671#(<= 2 |fibo2_#in~n|)} is VALID [2020-07-10 14:56:30,021 INFO L275 TraceCheckUtils]: 21: Hoare quadruple {1671#(<= 2 |fibo2_#in~n|)} {1610#true} #57#return; {1664#(<= 3 fibo1_~n)} is VALID [2020-07-10 14:56:30,022 INFO L280 TraceCheckUtils]: 22: Hoare triple {1664#(<= 3 fibo1_~n)} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {1664#(<= 3 fibo1_~n)} is VALID [2020-07-10 14:56:30,022 INFO L263 TraceCheckUtils]: 23: Hoare triple {1664#(<= 3 fibo1_~n)} call #t~ret1 := fibo2(~n - 2); {1610#true} is VALID [2020-07-10 14:56:30,023 INFO L280 TraceCheckUtils]: 24: Hoare triple {1610#true} ~n := #in~n; {1669#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-10 14:56:30,023 INFO L280 TraceCheckUtils]: 25: Hoare triple {1669#(= fibo2_~n |fibo2_#in~n|)} assume ~n < 1;#res := 0; {1681#(<= |fibo2_#in~n| 0)} is VALID [2020-07-10 14:56:30,024 INFO L280 TraceCheckUtils]: 26: Hoare triple {1681#(<= |fibo2_#in~n| 0)} assume true; {1681#(<= |fibo2_#in~n| 0)} is VALID [2020-07-10 14:56:30,025 INFO L275 TraceCheckUtils]: 27: Hoare quadruple {1681#(<= |fibo2_#in~n| 0)} {1664#(<= 3 fibo1_~n)} #59#return; {1611#false} is VALID [2020-07-10 14:56:30,025 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 [2020-07-10 14:56:30,025 INFO L280 TraceCheckUtils]: 29: Hoare triple {1611#false} assume true; {1611#false} is VALID [2020-07-10 14:56:30,025 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {1611#false} {1614#(<= 4 main_~x~0)} #51#return; {1611#false} is VALID [2020-07-10 14:56:30,026 INFO L263 TraceCheckUtils]: 0: Hoare triple {1610#true} call ULTIMATE.init(); {1610#true} is VALID [2020-07-10 14:56:30,027 INFO L280 TraceCheckUtils]: 1: Hoare triple {1610#true} assume true; {1610#true} is VALID [2020-07-10 14:56:30,027 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {1610#true} {1610#true} #47#return; {1610#true} is VALID [2020-07-10 14:56:30,027 INFO L263 TraceCheckUtils]: 3: Hoare triple {1610#true} call #t~ret5 := main(); {1610#true} is VALID [2020-07-10 14:56:30,028 INFO L280 TraceCheckUtils]: 4: Hoare triple {1610#true} ~x~0 := 4; {1614#(<= 4 main_~x~0)} is VALID [2020-07-10 14:56:30,029 INFO L263 TraceCheckUtils]: 5: Hoare triple {1614#(<= 4 main_~x~0)} call #t~ret4 := fibo1(~x~0); {1610#true} is VALID [2020-07-10 14:56:30,029 INFO L280 TraceCheckUtils]: 6: Hoare triple {1610#true} ~n := #in~n; {1610#true} is VALID [2020-07-10 14:56:30,029 INFO L280 TraceCheckUtils]: 7: Hoare triple {1610#true} assume !(~n < 1); {1610#true} is VALID [2020-07-10 14:56:30,030 INFO L280 TraceCheckUtils]: 8: Hoare triple {1610#true} assume !(1 == ~n); {1610#true} is VALID [2020-07-10 14:56:30,030 INFO L263 TraceCheckUtils]: 9: Hoare triple {1610#true} call #t~ret0 := fibo2(~n - 1); {1610#true} is VALID [2020-07-10 14:56:30,031 INFO L280 TraceCheckUtils]: 10: Hoare triple {1610#true} ~n := #in~n; {1669#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-10 14:56:30,033 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 [2020-07-10 14:56:30,035 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 [2020-07-10 14:56:30,036 INFO L263 TraceCheckUtils]: 13: Hoare triple {1671#(<= 2 |fibo2_#in~n|)} call #t~ret2 := fibo1(~n - 1); {1610#true} is VALID [2020-07-10 14:56:30,036 INFO L280 TraceCheckUtils]: 14: Hoare triple {1610#true} ~n := #in~n; {1610#true} is VALID [2020-07-10 14:56:30,036 INFO L280 TraceCheckUtils]: 15: Hoare triple {1610#true} assume !(~n < 1); {1610#true} is VALID [2020-07-10 14:56:30,036 INFO L280 TraceCheckUtils]: 16: Hoare triple {1610#true} assume 1 == ~n;#res := 1; {1610#true} is VALID [2020-07-10 14:56:30,036 INFO L280 TraceCheckUtils]: 17: Hoare triple {1610#true} assume true; {1610#true} is VALID [2020-07-10 14:56:30,037 INFO L275 TraceCheckUtils]: 18: Hoare quadruple {1610#true} {1671#(<= 2 |fibo2_#in~n|)} #53#return; {1671#(<= 2 |fibo2_#in~n|)} is VALID [2020-07-10 14:56:30,038 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 [2020-07-10 14:56:30,038 INFO L263 TraceCheckUtils]: 20: Hoare triple {1671#(<= 2 |fibo2_#in~n|)} call #t~ret3 := fibo1(~n - 2); {1610#true} is VALID [2020-07-10 14:56:30,038 INFO L280 TraceCheckUtils]: 21: Hoare triple {1610#true} ~n := #in~n; {1610#true} is VALID [2020-07-10 14:56:30,038 INFO L280 TraceCheckUtils]: 22: Hoare triple {1610#true} assume ~n < 1;#res := 0; {1610#true} is VALID [2020-07-10 14:56:30,039 INFO L280 TraceCheckUtils]: 23: Hoare triple {1610#true} assume true; {1610#true} is VALID [2020-07-10 14:56:30,039 INFO L275 TraceCheckUtils]: 24: Hoare quadruple {1610#true} {1671#(<= 2 |fibo2_#in~n|)} #55#return; {1671#(<= 2 |fibo2_#in~n|)} is VALID [2020-07-10 14:56:30,040 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~ret2;havoc #t~ret3; {1671#(<= 2 |fibo2_#in~n|)} is VALID [2020-07-10 14:56:30,040 INFO L280 TraceCheckUtils]: 26: Hoare triple {1671#(<= 2 |fibo2_#in~n|)} assume true; {1671#(<= 2 |fibo2_#in~n|)} is VALID [2020-07-10 14:56:30,041 INFO L275 TraceCheckUtils]: 27: Hoare quadruple {1671#(<= 2 |fibo2_#in~n|)} {1610#true} #57#return; {1664#(<= 3 fibo1_~n)} is VALID [2020-07-10 14:56:30,042 INFO L280 TraceCheckUtils]: 28: Hoare triple {1664#(<= 3 fibo1_~n)} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {1664#(<= 3 fibo1_~n)} is VALID [2020-07-10 14:56:30,042 INFO L263 TraceCheckUtils]: 29: Hoare triple {1664#(<= 3 fibo1_~n)} call #t~ret1 := fibo2(~n - 2); {1610#true} is VALID [2020-07-10 14:56:30,043 INFO L280 TraceCheckUtils]: 30: Hoare triple {1610#true} ~n := #in~n; {1669#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-10 14:56:30,043 INFO L280 TraceCheckUtils]: 31: Hoare triple {1669#(= fibo2_~n |fibo2_#in~n|)} assume ~n < 1;#res := 0; {1681#(<= |fibo2_#in~n| 0)} is VALID [2020-07-10 14:56:30,044 INFO L280 TraceCheckUtils]: 32: Hoare triple {1681#(<= |fibo2_#in~n| 0)} assume true; {1681#(<= |fibo2_#in~n| 0)} is VALID [2020-07-10 14:56:30,045 INFO L275 TraceCheckUtils]: 33: Hoare quadruple {1681#(<= |fibo2_#in~n| 0)} {1664#(<= 3 fibo1_~n)} #59#return; {1611#false} is VALID [2020-07-10 14:56:30,045 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 [2020-07-10 14:56:30,045 INFO L280 TraceCheckUtils]: 35: Hoare triple {1611#false} assume true; {1611#false} is VALID [2020-07-10 14:56:30,046 INFO L275 TraceCheckUtils]: 36: Hoare quadruple {1611#false} {1614#(<= 4 main_~x~0)} #51#return; {1611#false} is VALID [2020-07-10 14:56:30,046 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 [2020-07-10 14:56:30,046 INFO L280 TraceCheckUtils]: 38: Hoare triple {1611#false} assume 3 != ~result~0; {1611#false} is VALID [2020-07-10 14:56:30,046 INFO L280 TraceCheckUtils]: 39: Hoare triple {1611#false} assume !false; {1611#false} is VALID [2020-07-10 14:56:30,048 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-07-10 14:56:30,048 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803680341] [2020-07-10 14:56:30,048 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1461152874] [2020-07-10 14:56:30,049 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 [2020-07-10 14:56:30,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:56:30,080 INFO L264 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-10 14:56:30,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:56:30,091 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-10 14:56:30,275 INFO L263 TraceCheckUtils]: 0: Hoare triple {1610#true} call ULTIMATE.init(); {1610#true} is VALID [2020-07-10 14:56:30,276 INFO L280 TraceCheckUtils]: 1: Hoare triple {1610#true} assume true; {1610#true} is VALID [2020-07-10 14:56:30,276 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {1610#true} {1610#true} #47#return; {1610#true} is VALID [2020-07-10 14:56:30,276 INFO L263 TraceCheckUtils]: 3: Hoare triple {1610#true} call #t~ret5 := main(); {1610#true} is VALID [2020-07-10 14:56:30,277 INFO L280 TraceCheckUtils]: 4: Hoare triple {1610#true} ~x~0 := 4; {1614#(<= 4 main_~x~0)} is VALID [2020-07-10 14:56:30,277 INFO L263 TraceCheckUtils]: 5: Hoare triple {1614#(<= 4 main_~x~0)} call #t~ret4 := fibo1(~x~0); {1610#true} is VALID [2020-07-10 14:56:30,277 INFO L280 TraceCheckUtils]: 6: Hoare triple {1610#true} ~n := #in~n; {1703#(<= |fibo1_#in~n| fibo1_~n)} is VALID [2020-07-10 14:56:30,278 INFO L280 TraceCheckUtils]: 7: Hoare triple {1703#(<= |fibo1_#in~n| fibo1_~n)} assume !(~n < 1); {1703#(<= |fibo1_#in~n| fibo1_~n)} is VALID [2020-07-10 14:56:30,278 INFO L280 TraceCheckUtils]: 8: Hoare triple {1703#(<= |fibo1_#in~n| fibo1_~n)} assume !(1 == ~n); {1703#(<= |fibo1_#in~n| fibo1_~n)} is VALID [2020-07-10 14:56:30,279 INFO L263 TraceCheckUtils]: 9: Hoare triple {1703#(<= |fibo1_#in~n| fibo1_~n)} call #t~ret0 := fibo2(~n - 1); {1610#true} is VALID [2020-07-10 14:56:30,279 INFO L280 TraceCheckUtils]: 10: Hoare triple {1610#true} ~n := #in~n; {1716#(<= |fibo2_#in~n| fibo2_~n)} is VALID [2020-07-10 14:56:30,280 INFO L280 TraceCheckUtils]: 11: Hoare triple {1716#(<= |fibo2_#in~n| fibo2_~n)} assume !(~n < 1); {1716#(<= |fibo2_#in~n| fibo2_~n)} is VALID [2020-07-10 14:56:30,280 INFO L280 TraceCheckUtils]: 12: Hoare triple {1716#(<= |fibo2_#in~n| fibo2_~n)} assume !(1 == ~n); {1716#(<= |fibo2_#in~n| fibo2_~n)} is VALID [2020-07-10 14:56:30,280 INFO L263 TraceCheckUtils]: 13: Hoare triple {1716#(<= |fibo2_#in~n| fibo2_~n)} call #t~ret2 := fibo1(~n - 1); {1610#true} is VALID [2020-07-10 14:56:30,281 INFO L280 TraceCheckUtils]: 14: Hoare triple {1610#true} ~n := #in~n; {1703#(<= |fibo1_#in~n| fibo1_~n)} is VALID [2020-07-10 14:56:30,281 INFO L280 TraceCheckUtils]: 15: Hoare triple {1703#(<= |fibo1_#in~n| fibo1_~n)} assume !(~n < 1); {1703#(<= |fibo1_#in~n| fibo1_~n)} is VALID [2020-07-10 14:56:30,282 INFO L280 TraceCheckUtils]: 16: Hoare triple {1703#(<= |fibo1_#in~n| fibo1_~n)} assume 1 == ~n;#res := 1; {1735#(<= |fibo1_#in~n| 1)} is VALID [2020-07-10 14:56:30,283 INFO L280 TraceCheckUtils]: 17: Hoare triple {1735#(<= |fibo1_#in~n| 1)} assume true; {1735#(<= |fibo1_#in~n| 1)} is VALID [2020-07-10 14:56:30,284 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 [2020-07-10 14:56:30,285 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 [2020-07-10 14:56:30,285 INFO L263 TraceCheckUtils]: 20: Hoare triple {1742#(<= |fibo2_#in~n| 2)} call #t~ret3 := fibo1(~n - 2); {1610#true} is VALID [2020-07-10 14:56:30,285 INFO L280 TraceCheckUtils]: 21: Hoare triple {1610#true} ~n := #in~n; {1610#true} is VALID [2020-07-10 14:56:30,285 INFO L280 TraceCheckUtils]: 22: Hoare triple {1610#true} assume ~n < 1;#res := 0; {1610#true} is VALID [2020-07-10 14:56:30,285 INFO L280 TraceCheckUtils]: 23: Hoare triple {1610#true} assume true; {1610#true} is VALID [2020-07-10 14:56:30,286 INFO L275 TraceCheckUtils]: 24: Hoare quadruple {1610#true} {1742#(<= |fibo2_#in~n| 2)} #55#return; {1742#(<= |fibo2_#in~n| 2)} is VALID [2020-07-10 14:56:30,287 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~ret2;havoc #t~ret3; {1742#(<= |fibo2_#in~n| 2)} is VALID [2020-07-10 14:56:30,287 INFO L280 TraceCheckUtils]: 26: Hoare triple {1742#(<= |fibo2_#in~n| 2)} assume true; {1742#(<= |fibo2_#in~n| 2)} is VALID [2020-07-10 14:56:30,288 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 [2020-07-10 14:56:30,289 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 [2020-07-10 14:56:30,289 INFO L263 TraceCheckUtils]: 29: Hoare triple {1770#(<= |fibo1_#in~n| 3)} call #t~ret1 := fibo2(~n - 2); {1610#true} is VALID [2020-07-10 14:56:30,289 INFO L280 TraceCheckUtils]: 30: Hoare triple {1610#true} ~n := #in~n; {1610#true} is VALID [2020-07-10 14:56:30,289 INFO L280 TraceCheckUtils]: 31: Hoare triple {1610#true} assume ~n < 1;#res := 0; {1610#true} is VALID [2020-07-10 14:56:30,289 INFO L280 TraceCheckUtils]: 32: Hoare triple {1610#true} assume true; {1610#true} is VALID [2020-07-10 14:56:30,290 INFO L275 TraceCheckUtils]: 33: Hoare quadruple {1610#true} {1770#(<= |fibo1_#in~n| 3)} #59#return; {1770#(<= |fibo1_#in~n| 3)} is VALID [2020-07-10 14:56:30,290 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 [2020-07-10 14:56:30,291 INFO L280 TraceCheckUtils]: 35: Hoare triple {1770#(<= |fibo1_#in~n| 3)} assume true; {1770#(<= |fibo1_#in~n| 3)} is VALID [2020-07-10 14:56:30,291 INFO L275 TraceCheckUtils]: 36: Hoare quadruple {1770#(<= |fibo1_#in~n| 3)} {1614#(<= 4 main_~x~0)} #51#return; {1611#false} is VALID [2020-07-10 14:56:30,291 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 [2020-07-10 14:56:30,292 INFO L280 TraceCheckUtils]: 38: Hoare triple {1611#false} assume 3 != ~result~0; {1611#false} is VALID [2020-07-10 14:56:30,292 INFO L280 TraceCheckUtils]: 39: Hoare triple {1611#false} assume !false; {1611#false} is VALID [2020-07-10 14:56:30,295 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-07-10 14:56:30,296 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-10 14:56:30,296 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2020-07-10 14:56:30,296 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840903441] [2020-07-10 14:56:30,297 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 40 [2020-07-10 14:56:30,297 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 14:56:30,300 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 13 states. [2020-07-10 14:56:30,361 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 61 edges. 61 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 14:56:30,362 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-07-10 14:56:30,362 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-10 14:56:30,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-07-10 14:56:30,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2020-07-10 14:56:30,363 INFO L87 Difference]: Start difference. First operand 66 states and 95 transitions. Second operand 13 states. [2020-07-10 14:56:31,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 14:56:31,905 INFO L93 Difference]: Finished difference Result 180 states and 324 transitions. [2020-07-10 14:56:31,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-07-10 14:56:31,905 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 40 [2020-07-10 14:56:31,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 14:56:31,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-07-10 14:56:31,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 133 transitions. [2020-07-10 14:56:31,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-07-10 14:56:31,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 133 transitions. [2020-07-10 14:56:31,925 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 16 states and 133 transitions. [2020-07-10 14:56:32,094 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 133 edges. 133 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 14:56:32,101 INFO L225 Difference]: With dead ends: 180 [2020-07-10 14:56:32,102 INFO L226 Difference]: Without dead ends: 120 [2020-07-10 14:56:32,104 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=86, Invalid=376, Unknown=0, NotChecked=0, Total=462 [2020-07-10 14:56:32,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2020-07-10 14:56:32,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 106. [2020-07-10 14:56:32,180 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 14:56:32,180 INFO L82 GeneralOperation]: Start isEquivalent. First operand 120 states. Second operand 106 states. [2020-07-10 14:56:32,180 INFO L74 IsIncluded]: Start isIncluded. First operand 120 states. Second operand 106 states. [2020-07-10 14:56:32,180 INFO L87 Difference]: Start difference. First operand 120 states. Second operand 106 states. [2020-07-10 14:56:32,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 14:56:32,191 INFO L93 Difference]: Finished difference Result 120 states and 198 transitions. [2020-07-10 14:56:32,191 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 198 transitions. [2020-07-10 14:56:32,193 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 14:56:32,193 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 14:56:32,193 INFO L74 IsIncluded]: Start isIncluded. First operand 106 states. Second operand 120 states. [2020-07-10 14:56:32,193 INFO L87 Difference]: Start difference. First operand 106 states. Second operand 120 states. [2020-07-10 14:56:32,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 14:56:32,203 INFO L93 Difference]: Finished difference Result 120 states and 198 transitions. [2020-07-10 14:56:32,203 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 198 transitions. [2020-07-10 14:56:32,205 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 14:56:32,205 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 14:56:32,205 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 14:56:32,205 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 14:56:32,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-07-10 14:56:32,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 169 transitions. [2020-07-10 14:56:32,213 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 169 transitions. Word has length 40 [2020-07-10 14:56:32,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 14:56:32,213 INFO L479 AbstractCegarLoop]: Abstraction has 106 states and 169 transitions. [2020-07-10 14:56:32,213 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-07-10 14:56:32,213 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 169 transitions. [2020-07-10 14:56:32,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-07-10 14:56:32,215 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 14:56:32,215 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] [2020-07-10 14:56:32,428 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-10 14:56:32,429 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 14:56:32,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 14:56:32,430 INFO L82 PathProgramCache]: Analyzing trace with hash -405677468, now seen corresponding path program 1 times [2020-07-10 14:56:32,430 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-10 14:56:32,431 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670856710] [2020-07-10 14:56:32,431 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 14:56:32,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:56:32,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:56:32,494 INFO L280 TraceCheckUtils]: 0: Hoare triple {2439#true} assume true; {2439#true} is VALID [2020-07-10 14:56:32,494 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {2439#true} {2439#true} #47#return; {2439#true} is VALID [2020-07-10 14:56:32,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:56:32,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:56:32,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:56:32,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:56:32,617 INFO L280 TraceCheckUtils]: 0: Hoare triple {2439#true} ~n := #in~n; {2439#true} is VALID [2020-07-10 14:56:32,618 INFO L280 TraceCheckUtils]: 1: Hoare triple {2439#true} assume !(~n < 1); {2439#true} is VALID [2020-07-10 14:56:32,618 INFO L280 TraceCheckUtils]: 2: Hoare triple {2439#true} assume 1 == ~n;#res := 1; {2439#true} is VALID [2020-07-10 14:56:32,618 INFO L280 TraceCheckUtils]: 3: Hoare triple {2439#true} assume true; {2439#true} is VALID [2020-07-10 14:56:32,619 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {2439#true} {2550#(<= 2 |fibo1_#in~n|)} #57#return; {2550#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-10 14:56:32,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:56:32,625 INFO L280 TraceCheckUtils]: 0: Hoare triple {2439#true} ~n := #in~n; {2439#true} is VALID [2020-07-10 14:56:32,625 INFO L280 TraceCheckUtils]: 1: Hoare triple {2439#true} assume ~n < 1;#res := 0; {2439#true} is VALID [2020-07-10 14:56:32,625 INFO L280 TraceCheckUtils]: 2: Hoare triple {2439#true} assume true; {2439#true} is VALID [2020-07-10 14:56:32,627 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {2439#true} {2550#(<= 2 |fibo1_#in~n|)} #59#return; {2550#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-10 14:56:32,628 INFO L280 TraceCheckUtils]: 0: Hoare triple {2439#true} ~n := #in~n; {2548#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-10 14:56:32,629 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 [2020-07-10 14:56:32,630 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 [2020-07-10 14:56:32,630 INFO L263 TraceCheckUtils]: 3: Hoare triple {2550#(<= 2 |fibo1_#in~n|)} call #t~ret0 := fibo2(~n - 1); {2439#true} is VALID [2020-07-10 14:56:32,631 INFO L280 TraceCheckUtils]: 4: Hoare triple {2439#true} ~n := #in~n; {2439#true} is VALID [2020-07-10 14:56:32,631 INFO L280 TraceCheckUtils]: 5: Hoare triple {2439#true} assume !(~n < 1); {2439#true} is VALID [2020-07-10 14:56:32,631 INFO L280 TraceCheckUtils]: 6: Hoare triple {2439#true} assume 1 == ~n;#res := 1; {2439#true} is VALID [2020-07-10 14:56:32,632 INFO L280 TraceCheckUtils]: 7: Hoare triple {2439#true} assume true; {2439#true} is VALID [2020-07-10 14:56:32,633 INFO L275 TraceCheckUtils]: 8: Hoare quadruple {2439#true} {2550#(<= 2 |fibo1_#in~n|)} #57#return; {2550#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-10 14:56:32,634 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 [2020-07-10 14:56:32,634 INFO L263 TraceCheckUtils]: 10: Hoare triple {2550#(<= 2 |fibo1_#in~n|)} call #t~ret1 := fibo2(~n - 2); {2439#true} is VALID [2020-07-10 14:56:32,635 INFO L280 TraceCheckUtils]: 11: Hoare triple {2439#true} ~n := #in~n; {2439#true} is VALID [2020-07-10 14:56:32,635 INFO L280 TraceCheckUtils]: 12: Hoare triple {2439#true} assume ~n < 1;#res := 0; {2439#true} is VALID [2020-07-10 14:56:32,635 INFO L280 TraceCheckUtils]: 13: Hoare triple {2439#true} assume true; {2439#true} is VALID [2020-07-10 14:56:32,636 INFO L275 TraceCheckUtils]: 14: Hoare quadruple {2439#true} {2550#(<= 2 |fibo1_#in~n|)} #59#return; {2550#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-10 14:56:32,637 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 [2020-07-10 14:56:32,637 INFO L280 TraceCheckUtils]: 16: Hoare triple {2550#(<= 2 |fibo1_#in~n|)} assume true; {2550#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-10 14:56:32,639 INFO L275 TraceCheckUtils]: 17: Hoare quadruple {2550#(<= 2 |fibo1_#in~n|)} {2439#true} #53#return; {2543#(<= 3 fibo2_~n)} is VALID [2020-07-10 14:56:32,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:56:32,660 INFO L280 TraceCheckUtils]: 0: Hoare triple {2439#true} ~n := #in~n; {2548#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-10 14:56:32,661 INFO L280 TraceCheckUtils]: 1: Hoare triple {2548#(= fibo1_~n |fibo1_#in~n|)} assume ~n < 1;#res := 0; {2560#(<= |fibo1_#in~n| 0)} is VALID [2020-07-10 14:56:32,662 INFO L280 TraceCheckUtils]: 2: Hoare triple {2560#(<= |fibo1_#in~n| 0)} assume true; {2560#(<= |fibo1_#in~n| 0)} is VALID [2020-07-10 14:56:32,663 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {2560#(<= |fibo1_#in~n| 0)} {2543#(<= 3 fibo2_~n)} #55#return; {2440#false} is VALID [2020-07-10 14:56:32,663 INFO L280 TraceCheckUtils]: 0: Hoare triple {2439#true} ~n := #in~n; {2439#true} is VALID [2020-07-10 14:56:32,664 INFO L280 TraceCheckUtils]: 1: Hoare triple {2439#true} assume !(~n < 1); {2439#true} is VALID [2020-07-10 14:56:32,664 INFO L280 TraceCheckUtils]: 2: Hoare triple {2439#true} assume !(1 == ~n); {2439#true} is VALID [2020-07-10 14:56:32,664 INFO L263 TraceCheckUtils]: 3: Hoare triple {2439#true} call #t~ret2 := fibo1(~n - 1); {2439#true} is VALID [2020-07-10 14:56:32,665 INFO L280 TraceCheckUtils]: 4: Hoare triple {2439#true} ~n := #in~n; {2548#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-10 14:56:32,665 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 [2020-07-10 14:56:32,666 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 [2020-07-10 14:56:32,666 INFO L263 TraceCheckUtils]: 7: Hoare triple {2550#(<= 2 |fibo1_#in~n|)} call #t~ret0 := fibo2(~n - 1); {2439#true} is VALID [2020-07-10 14:56:32,667 INFO L280 TraceCheckUtils]: 8: Hoare triple {2439#true} ~n := #in~n; {2439#true} is VALID [2020-07-10 14:56:32,667 INFO L280 TraceCheckUtils]: 9: Hoare triple {2439#true} assume !(~n < 1); {2439#true} is VALID [2020-07-10 14:56:32,667 INFO L280 TraceCheckUtils]: 10: Hoare triple {2439#true} assume 1 == ~n;#res := 1; {2439#true} is VALID [2020-07-10 14:56:32,667 INFO L280 TraceCheckUtils]: 11: Hoare triple {2439#true} assume true; {2439#true} is VALID [2020-07-10 14:56:32,668 INFO L275 TraceCheckUtils]: 12: Hoare quadruple {2439#true} {2550#(<= 2 |fibo1_#in~n|)} #57#return; {2550#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-10 14:56:32,669 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 [2020-07-10 14:56:32,669 INFO L263 TraceCheckUtils]: 14: Hoare triple {2550#(<= 2 |fibo1_#in~n|)} call #t~ret1 := fibo2(~n - 2); {2439#true} is VALID [2020-07-10 14:56:32,669 INFO L280 TraceCheckUtils]: 15: Hoare triple {2439#true} ~n := #in~n; {2439#true} is VALID [2020-07-10 14:56:32,669 INFO L280 TraceCheckUtils]: 16: Hoare triple {2439#true} assume ~n < 1;#res := 0; {2439#true} is VALID [2020-07-10 14:56:32,669 INFO L280 TraceCheckUtils]: 17: Hoare triple {2439#true} assume true; {2439#true} is VALID [2020-07-10 14:56:32,670 INFO L275 TraceCheckUtils]: 18: Hoare quadruple {2439#true} {2550#(<= 2 |fibo1_#in~n|)} #59#return; {2550#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-10 14:56:32,671 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 [2020-07-10 14:56:32,672 INFO L280 TraceCheckUtils]: 20: Hoare triple {2550#(<= 2 |fibo1_#in~n|)} assume true; {2550#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-10 14:56:32,673 INFO L275 TraceCheckUtils]: 21: Hoare quadruple {2550#(<= 2 |fibo1_#in~n|)} {2439#true} #53#return; {2543#(<= 3 fibo2_~n)} is VALID [2020-07-10 14:56:32,674 INFO L280 TraceCheckUtils]: 22: Hoare triple {2543#(<= 3 fibo2_~n)} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {2543#(<= 3 fibo2_~n)} is VALID [2020-07-10 14:56:32,674 INFO L263 TraceCheckUtils]: 23: Hoare triple {2543#(<= 3 fibo2_~n)} call #t~ret3 := fibo1(~n - 2); {2439#true} is VALID [2020-07-10 14:56:32,674 INFO L280 TraceCheckUtils]: 24: Hoare triple {2439#true} ~n := #in~n; {2548#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-10 14:56:32,675 INFO L280 TraceCheckUtils]: 25: Hoare triple {2548#(= fibo1_~n |fibo1_#in~n|)} assume ~n < 1;#res := 0; {2560#(<= |fibo1_#in~n| 0)} is VALID [2020-07-10 14:56:32,676 INFO L280 TraceCheckUtils]: 26: Hoare triple {2560#(<= |fibo1_#in~n| 0)} assume true; {2560#(<= |fibo1_#in~n| 0)} is VALID [2020-07-10 14:56:32,677 INFO L275 TraceCheckUtils]: 27: Hoare quadruple {2560#(<= |fibo1_#in~n| 0)} {2543#(<= 3 fibo2_~n)} #55#return; {2440#false} is VALID [2020-07-10 14:56:32,677 INFO L280 TraceCheckUtils]: 28: Hoare triple {2440#false} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647;#res := #t~ret2 + #t~ret3;havoc #t~ret2;havoc #t~ret3; {2440#false} is VALID [2020-07-10 14:56:32,677 INFO L280 TraceCheckUtils]: 29: Hoare triple {2440#false} assume true; {2440#false} is VALID [2020-07-10 14:56:32,678 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {2440#false} {2439#true} #57#return; {2440#false} is VALID [2020-07-10 14:56:32,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:56:32,684 INFO L280 TraceCheckUtils]: 0: Hoare triple {2439#true} ~n := #in~n; {2439#true} is VALID [2020-07-10 14:56:32,685 INFO L280 TraceCheckUtils]: 1: Hoare triple {2439#true} assume !(~n < 1); {2439#true} is VALID [2020-07-10 14:56:32,685 INFO L280 TraceCheckUtils]: 2: Hoare triple {2439#true} assume 1 == ~n;#res := 1; {2439#true} is VALID [2020-07-10 14:56:32,686 INFO L280 TraceCheckUtils]: 3: Hoare triple {2439#true} assume true; {2439#true} is VALID [2020-07-10 14:56:32,686 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {2439#true} {2440#false} #59#return; {2440#false} is VALID [2020-07-10 14:56:32,686 INFO L280 TraceCheckUtils]: 0: Hoare triple {2439#true} ~n := #in~n; {2439#true} is VALID [2020-07-10 14:56:32,687 INFO L280 TraceCheckUtils]: 1: Hoare triple {2439#true} assume !(~n < 1); {2439#true} is VALID [2020-07-10 14:56:32,687 INFO L280 TraceCheckUtils]: 2: Hoare triple {2439#true} assume !(1 == ~n); {2439#true} is VALID [2020-07-10 14:56:32,687 INFO L263 TraceCheckUtils]: 3: Hoare triple {2439#true} call #t~ret0 := fibo2(~n - 1); {2439#true} is VALID [2020-07-10 14:56:32,687 INFO L280 TraceCheckUtils]: 4: Hoare triple {2439#true} ~n := #in~n; {2439#true} is VALID [2020-07-10 14:56:32,688 INFO L280 TraceCheckUtils]: 5: Hoare triple {2439#true} assume !(~n < 1); {2439#true} is VALID [2020-07-10 14:56:32,688 INFO L280 TraceCheckUtils]: 6: Hoare triple {2439#true} assume !(1 == ~n); {2439#true} is VALID [2020-07-10 14:56:32,688 INFO L263 TraceCheckUtils]: 7: Hoare triple {2439#true} call #t~ret2 := fibo1(~n - 1); {2439#true} is VALID [2020-07-10 14:56:32,689 INFO L280 TraceCheckUtils]: 8: Hoare triple {2439#true} ~n := #in~n; {2548#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-10 14:56:32,690 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 [2020-07-10 14:56:32,691 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 [2020-07-10 14:56:32,692 INFO L263 TraceCheckUtils]: 11: Hoare triple {2550#(<= 2 |fibo1_#in~n|)} call #t~ret0 := fibo2(~n - 1); {2439#true} is VALID [2020-07-10 14:56:32,692 INFO L280 TraceCheckUtils]: 12: Hoare triple {2439#true} ~n := #in~n; {2439#true} is VALID [2020-07-10 14:56:32,692 INFO L280 TraceCheckUtils]: 13: Hoare triple {2439#true} assume !(~n < 1); {2439#true} is VALID [2020-07-10 14:56:32,693 INFO L280 TraceCheckUtils]: 14: Hoare triple {2439#true} assume 1 == ~n;#res := 1; {2439#true} is VALID [2020-07-10 14:56:32,693 INFO L280 TraceCheckUtils]: 15: Hoare triple {2439#true} assume true; {2439#true} is VALID [2020-07-10 14:56:32,694 INFO L275 TraceCheckUtils]: 16: Hoare quadruple {2439#true} {2550#(<= 2 |fibo1_#in~n|)} #57#return; {2550#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-10 14:56:32,695 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 [2020-07-10 14:56:32,695 INFO L263 TraceCheckUtils]: 18: Hoare triple {2550#(<= 2 |fibo1_#in~n|)} call #t~ret1 := fibo2(~n - 2); {2439#true} is VALID [2020-07-10 14:56:32,696 INFO L280 TraceCheckUtils]: 19: Hoare triple {2439#true} ~n := #in~n; {2439#true} is VALID [2020-07-10 14:56:32,696 INFO L280 TraceCheckUtils]: 20: Hoare triple {2439#true} assume ~n < 1;#res := 0; {2439#true} is VALID [2020-07-10 14:56:32,696 INFO L280 TraceCheckUtils]: 21: Hoare triple {2439#true} assume true; {2439#true} is VALID [2020-07-10 14:56:32,698 INFO L275 TraceCheckUtils]: 22: Hoare quadruple {2439#true} {2550#(<= 2 |fibo1_#in~n|)} #59#return; {2550#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-10 14:56:32,698 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 [2020-07-10 14:56:32,699 INFO L280 TraceCheckUtils]: 24: Hoare triple {2550#(<= 2 |fibo1_#in~n|)} assume true; {2550#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-10 14:56:32,700 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {2550#(<= 2 |fibo1_#in~n|)} {2439#true} #53#return; {2543#(<= 3 fibo2_~n)} is VALID [2020-07-10 14:56:32,701 INFO L280 TraceCheckUtils]: 26: Hoare triple {2543#(<= 3 fibo2_~n)} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {2543#(<= 3 fibo2_~n)} is VALID [2020-07-10 14:56:32,701 INFO L263 TraceCheckUtils]: 27: Hoare triple {2543#(<= 3 fibo2_~n)} call #t~ret3 := fibo1(~n - 2); {2439#true} is VALID [2020-07-10 14:56:32,702 INFO L280 TraceCheckUtils]: 28: Hoare triple {2439#true} ~n := #in~n; {2548#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-10 14:56:32,702 INFO L280 TraceCheckUtils]: 29: Hoare triple {2548#(= fibo1_~n |fibo1_#in~n|)} assume ~n < 1;#res := 0; {2560#(<= |fibo1_#in~n| 0)} is VALID [2020-07-10 14:56:32,703 INFO L280 TraceCheckUtils]: 30: Hoare triple {2560#(<= |fibo1_#in~n| 0)} assume true; {2560#(<= |fibo1_#in~n| 0)} is VALID [2020-07-10 14:56:32,704 INFO L275 TraceCheckUtils]: 31: Hoare quadruple {2560#(<= |fibo1_#in~n| 0)} {2543#(<= 3 fibo2_~n)} #55#return; {2440#false} is VALID [2020-07-10 14:56:32,704 INFO L280 TraceCheckUtils]: 32: Hoare triple {2440#false} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647;#res := #t~ret2 + #t~ret3;havoc #t~ret2;havoc #t~ret3; {2440#false} is VALID [2020-07-10 14:56:32,704 INFO L280 TraceCheckUtils]: 33: Hoare triple {2440#false} assume true; {2440#false} is VALID [2020-07-10 14:56:32,705 INFO L275 TraceCheckUtils]: 34: Hoare quadruple {2440#false} {2439#true} #57#return; {2440#false} is VALID [2020-07-10 14:56:32,705 INFO L280 TraceCheckUtils]: 35: Hoare triple {2440#false} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {2440#false} is VALID [2020-07-10 14:56:32,705 INFO L263 TraceCheckUtils]: 36: Hoare triple {2440#false} call #t~ret1 := fibo2(~n - 2); {2439#true} is VALID [2020-07-10 14:56:32,706 INFO L280 TraceCheckUtils]: 37: Hoare triple {2439#true} ~n := #in~n; {2439#true} is VALID [2020-07-10 14:56:32,706 INFO L280 TraceCheckUtils]: 38: Hoare triple {2439#true} assume !(~n < 1); {2439#true} is VALID [2020-07-10 14:56:32,706 INFO L280 TraceCheckUtils]: 39: Hoare triple {2439#true} assume 1 == ~n;#res := 1; {2439#true} is VALID [2020-07-10 14:56:32,706 INFO L280 TraceCheckUtils]: 40: Hoare triple {2439#true} assume true; {2439#true} is VALID [2020-07-10 14:56:32,707 INFO L275 TraceCheckUtils]: 41: Hoare quadruple {2439#true} {2440#false} #59#return; {2440#false} is VALID [2020-07-10 14:56:32,707 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 [2020-07-10 14:56:32,707 INFO L280 TraceCheckUtils]: 43: Hoare triple {2440#false} assume true; {2440#false} is VALID [2020-07-10 14:56:32,708 INFO L275 TraceCheckUtils]: 44: Hoare quadruple {2440#false} {2443#(<= 4 main_~x~0)} #51#return; {2440#false} is VALID [2020-07-10 14:56:32,710 INFO L263 TraceCheckUtils]: 0: Hoare triple {2439#true} call ULTIMATE.init(); {2439#true} is VALID [2020-07-10 14:56:32,710 INFO L280 TraceCheckUtils]: 1: Hoare triple {2439#true} assume true; {2439#true} is VALID [2020-07-10 14:56:32,711 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {2439#true} {2439#true} #47#return; {2439#true} is VALID [2020-07-10 14:56:32,711 INFO L263 TraceCheckUtils]: 3: Hoare triple {2439#true} call #t~ret5 := main(); {2439#true} is VALID [2020-07-10 14:56:32,712 INFO L280 TraceCheckUtils]: 4: Hoare triple {2439#true} ~x~0 := 4; {2443#(<= 4 main_~x~0)} is VALID [2020-07-10 14:56:32,712 INFO L263 TraceCheckUtils]: 5: Hoare triple {2443#(<= 4 main_~x~0)} call #t~ret4 := fibo1(~x~0); {2439#true} is VALID [2020-07-10 14:56:32,713 INFO L280 TraceCheckUtils]: 6: Hoare triple {2439#true} ~n := #in~n; {2439#true} is VALID [2020-07-10 14:56:32,713 INFO L280 TraceCheckUtils]: 7: Hoare triple {2439#true} assume !(~n < 1); {2439#true} is VALID [2020-07-10 14:56:32,713 INFO L280 TraceCheckUtils]: 8: Hoare triple {2439#true} assume !(1 == ~n); {2439#true} is VALID [2020-07-10 14:56:32,714 INFO L263 TraceCheckUtils]: 9: Hoare triple {2439#true} call #t~ret0 := fibo2(~n - 1); {2439#true} is VALID [2020-07-10 14:56:32,714 INFO L280 TraceCheckUtils]: 10: Hoare triple {2439#true} ~n := #in~n; {2439#true} is VALID [2020-07-10 14:56:32,714 INFO L280 TraceCheckUtils]: 11: Hoare triple {2439#true} assume !(~n < 1); {2439#true} is VALID [2020-07-10 14:56:32,714 INFO L280 TraceCheckUtils]: 12: Hoare triple {2439#true} assume !(1 == ~n); {2439#true} is VALID [2020-07-10 14:56:32,715 INFO L263 TraceCheckUtils]: 13: Hoare triple {2439#true} call #t~ret2 := fibo1(~n - 1); {2439#true} is VALID [2020-07-10 14:56:32,715 INFO L280 TraceCheckUtils]: 14: Hoare triple {2439#true} ~n := #in~n; {2548#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-10 14:56:32,717 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 [2020-07-10 14:56:32,718 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 [2020-07-10 14:56:32,718 INFO L263 TraceCheckUtils]: 17: Hoare triple {2550#(<= 2 |fibo1_#in~n|)} call #t~ret0 := fibo2(~n - 1); {2439#true} is VALID [2020-07-10 14:56:32,718 INFO L280 TraceCheckUtils]: 18: Hoare triple {2439#true} ~n := #in~n; {2439#true} is VALID [2020-07-10 14:56:32,718 INFO L280 TraceCheckUtils]: 19: Hoare triple {2439#true} assume !(~n < 1); {2439#true} is VALID [2020-07-10 14:56:32,719 INFO L280 TraceCheckUtils]: 20: Hoare triple {2439#true} assume 1 == ~n;#res := 1; {2439#true} is VALID [2020-07-10 14:56:32,719 INFO L280 TraceCheckUtils]: 21: Hoare triple {2439#true} assume true; {2439#true} is VALID [2020-07-10 14:56:32,720 INFO L275 TraceCheckUtils]: 22: Hoare quadruple {2439#true} {2550#(<= 2 |fibo1_#in~n|)} #57#return; {2550#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-10 14:56:32,721 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 [2020-07-10 14:56:32,721 INFO L263 TraceCheckUtils]: 24: Hoare triple {2550#(<= 2 |fibo1_#in~n|)} call #t~ret1 := fibo2(~n - 2); {2439#true} is VALID [2020-07-10 14:56:32,722 INFO L280 TraceCheckUtils]: 25: Hoare triple {2439#true} ~n := #in~n; {2439#true} is VALID [2020-07-10 14:56:32,722 INFO L280 TraceCheckUtils]: 26: Hoare triple {2439#true} assume ~n < 1;#res := 0; {2439#true} is VALID [2020-07-10 14:56:32,722 INFO L280 TraceCheckUtils]: 27: Hoare triple {2439#true} assume true; {2439#true} is VALID [2020-07-10 14:56:32,723 INFO L275 TraceCheckUtils]: 28: Hoare quadruple {2439#true} {2550#(<= 2 |fibo1_#in~n|)} #59#return; {2550#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-10 14:56:32,724 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 [2020-07-10 14:56:32,725 INFO L280 TraceCheckUtils]: 30: Hoare triple {2550#(<= 2 |fibo1_#in~n|)} assume true; {2550#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-10 14:56:32,726 INFO L275 TraceCheckUtils]: 31: Hoare quadruple {2550#(<= 2 |fibo1_#in~n|)} {2439#true} #53#return; {2543#(<= 3 fibo2_~n)} is VALID [2020-07-10 14:56:32,727 INFO L280 TraceCheckUtils]: 32: Hoare triple {2543#(<= 3 fibo2_~n)} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {2543#(<= 3 fibo2_~n)} is VALID [2020-07-10 14:56:32,727 INFO L263 TraceCheckUtils]: 33: Hoare triple {2543#(<= 3 fibo2_~n)} call #t~ret3 := fibo1(~n - 2); {2439#true} is VALID [2020-07-10 14:56:32,727 INFO L280 TraceCheckUtils]: 34: Hoare triple {2439#true} ~n := #in~n; {2548#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-10 14:56:32,728 INFO L280 TraceCheckUtils]: 35: Hoare triple {2548#(= fibo1_~n |fibo1_#in~n|)} assume ~n < 1;#res := 0; {2560#(<= |fibo1_#in~n| 0)} is VALID [2020-07-10 14:56:32,729 INFO L280 TraceCheckUtils]: 36: Hoare triple {2560#(<= |fibo1_#in~n| 0)} assume true; {2560#(<= |fibo1_#in~n| 0)} is VALID [2020-07-10 14:56:32,730 INFO L275 TraceCheckUtils]: 37: Hoare quadruple {2560#(<= |fibo1_#in~n| 0)} {2543#(<= 3 fibo2_~n)} #55#return; {2440#false} is VALID [2020-07-10 14:56:32,730 INFO L280 TraceCheckUtils]: 38: Hoare triple {2440#false} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647;#res := #t~ret2 + #t~ret3;havoc #t~ret2;havoc #t~ret3; {2440#false} is VALID [2020-07-10 14:56:32,730 INFO L280 TraceCheckUtils]: 39: Hoare triple {2440#false} assume true; {2440#false} is VALID [2020-07-10 14:56:32,730 INFO L275 TraceCheckUtils]: 40: Hoare quadruple {2440#false} {2439#true} #57#return; {2440#false} is VALID [2020-07-10 14:56:32,731 INFO L280 TraceCheckUtils]: 41: Hoare triple {2440#false} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {2440#false} is VALID [2020-07-10 14:56:32,731 INFO L263 TraceCheckUtils]: 42: Hoare triple {2440#false} call #t~ret1 := fibo2(~n - 2); {2439#true} is VALID [2020-07-10 14:56:32,731 INFO L280 TraceCheckUtils]: 43: Hoare triple {2439#true} ~n := #in~n; {2439#true} is VALID [2020-07-10 14:56:32,731 INFO L280 TraceCheckUtils]: 44: Hoare triple {2439#true} assume !(~n < 1); {2439#true} is VALID [2020-07-10 14:56:32,731 INFO L280 TraceCheckUtils]: 45: Hoare triple {2439#true} assume 1 == ~n;#res := 1; {2439#true} is VALID [2020-07-10 14:56:32,732 INFO L280 TraceCheckUtils]: 46: Hoare triple {2439#true} assume true; {2439#true} is VALID [2020-07-10 14:56:32,732 INFO L275 TraceCheckUtils]: 47: Hoare quadruple {2439#true} {2440#false} #59#return; {2440#false} is VALID [2020-07-10 14:56:32,732 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 [2020-07-10 14:56:32,732 INFO L280 TraceCheckUtils]: 49: Hoare triple {2440#false} assume true; {2440#false} is VALID [2020-07-10 14:56:32,732 INFO L275 TraceCheckUtils]: 50: Hoare quadruple {2440#false} {2443#(<= 4 main_~x~0)} #51#return; {2440#false} is VALID [2020-07-10 14:56:32,733 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 [2020-07-10 14:56:32,733 INFO L280 TraceCheckUtils]: 52: Hoare triple {2440#false} assume 3 != ~result~0; {2440#false} is VALID [2020-07-10 14:56:32,733 INFO L280 TraceCheckUtils]: 53: Hoare triple {2440#false} assume !false; {2440#false} is VALID [2020-07-10 14:56:32,735 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 15 proven. 4 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-07-10 14:56:32,735 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670856710] [2020-07-10 14:56:32,735 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [502817590] [2020-07-10 14:56:32,736 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 [2020-07-10 14:56:32,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:56:32,794 INFO L264 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-10 14:56:32,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:56:32,807 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-10 14:56:32,948 INFO L263 TraceCheckUtils]: 0: Hoare triple {2439#true} call ULTIMATE.init(); {2439#true} is VALID [2020-07-10 14:56:32,948 INFO L280 TraceCheckUtils]: 1: Hoare triple {2439#true} assume true; {2439#true} is VALID [2020-07-10 14:56:32,949 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {2439#true} {2439#true} #47#return; {2439#true} is VALID [2020-07-10 14:56:32,949 INFO L263 TraceCheckUtils]: 3: Hoare triple {2439#true} call #t~ret5 := main(); {2439#true} is VALID [2020-07-10 14:56:32,949 INFO L280 TraceCheckUtils]: 4: Hoare triple {2439#true} ~x~0 := 4; {2443#(<= 4 main_~x~0)} is VALID [2020-07-10 14:56:32,950 INFO L263 TraceCheckUtils]: 5: Hoare triple {2443#(<= 4 main_~x~0)} call #t~ret4 := fibo1(~x~0); {2439#true} is VALID [2020-07-10 14:56:32,950 INFO L280 TraceCheckUtils]: 6: Hoare triple {2439#true} ~n := #in~n; {2582#(<= |fibo1_#in~n| fibo1_~n)} is VALID [2020-07-10 14:56:32,951 INFO L280 TraceCheckUtils]: 7: Hoare triple {2582#(<= |fibo1_#in~n| fibo1_~n)} assume !(~n < 1); {2582#(<= |fibo1_#in~n| fibo1_~n)} is VALID [2020-07-10 14:56:32,951 INFO L280 TraceCheckUtils]: 8: Hoare triple {2582#(<= |fibo1_#in~n| fibo1_~n)} assume !(1 == ~n); {2582#(<= |fibo1_#in~n| fibo1_~n)} is VALID [2020-07-10 14:56:32,952 INFO L263 TraceCheckUtils]: 9: Hoare triple {2582#(<= |fibo1_#in~n| fibo1_~n)} call #t~ret0 := fibo2(~n - 1); {2439#true} is VALID [2020-07-10 14:56:32,952 INFO L280 TraceCheckUtils]: 10: Hoare triple {2439#true} ~n := #in~n; {2595#(<= |fibo2_#in~n| fibo2_~n)} is VALID [2020-07-10 14:56:32,953 INFO L280 TraceCheckUtils]: 11: Hoare triple {2595#(<= |fibo2_#in~n| fibo2_~n)} assume !(~n < 1); {2595#(<= |fibo2_#in~n| fibo2_~n)} is VALID [2020-07-10 14:56:32,953 INFO L280 TraceCheckUtils]: 12: Hoare triple {2595#(<= |fibo2_#in~n| fibo2_~n)} assume !(1 == ~n); {2595#(<= |fibo2_#in~n| fibo2_~n)} is VALID [2020-07-10 14:56:32,953 INFO L263 TraceCheckUtils]: 13: Hoare triple {2595#(<= |fibo2_#in~n| fibo2_~n)} call #t~ret2 := fibo1(~n - 1); {2439#true} is VALID [2020-07-10 14:56:32,954 INFO L280 TraceCheckUtils]: 14: Hoare triple {2439#true} ~n := #in~n; {2439#true} is VALID [2020-07-10 14:56:32,954 INFO L280 TraceCheckUtils]: 15: Hoare triple {2439#true} assume !(~n < 1); {2439#true} is VALID [2020-07-10 14:56:32,954 INFO L280 TraceCheckUtils]: 16: Hoare triple {2439#true} assume !(1 == ~n); {2439#true} is VALID [2020-07-10 14:56:32,954 INFO L263 TraceCheckUtils]: 17: Hoare triple {2439#true} call #t~ret0 := fibo2(~n - 1); {2439#true} is VALID [2020-07-10 14:56:32,954 INFO L280 TraceCheckUtils]: 18: Hoare triple {2439#true} ~n := #in~n; {2439#true} is VALID [2020-07-10 14:56:32,955 INFO L280 TraceCheckUtils]: 19: Hoare triple {2439#true} assume !(~n < 1); {2439#true} is VALID [2020-07-10 14:56:32,955 INFO L280 TraceCheckUtils]: 20: Hoare triple {2439#true} assume 1 == ~n;#res := 1; {2439#true} is VALID [2020-07-10 14:56:32,955 INFO L280 TraceCheckUtils]: 21: Hoare triple {2439#true} assume true; {2439#true} is VALID [2020-07-10 14:56:32,955 INFO L275 TraceCheckUtils]: 22: Hoare quadruple {2439#true} {2439#true} #57#return; {2439#true} is VALID [2020-07-10 14:56:32,955 INFO L280 TraceCheckUtils]: 23: Hoare triple {2439#true} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {2439#true} is VALID [2020-07-10 14:56:32,955 INFO L263 TraceCheckUtils]: 24: Hoare triple {2439#true} call #t~ret1 := fibo2(~n - 2); {2439#true} is VALID [2020-07-10 14:56:32,956 INFO L280 TraceCheckUtils]: 25: Hoare triple {2439#true} ~n := #in~n; {2439#true} is VALID [2020-07-10 14:56:32,956 INFO L280 TraceCheckUtils]: 26: Hoare triple {2439#true} assume ~n < 1;#res := 0; {2439#true} is VALID [2020-07-10 14:56:32,956 INFO L280 TraceCheckUtils]: 27: Hoare triple {2439#true} assume true; {2439#true} is VALID [2020-07-10 14:56:32,956 INFO L275 TraceCheckUtils]: 28: Hoare quadruple {2439#true} {2439#true} #59#return; {2439#true} is VALID [2020-07-10 14:56:32,956 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 [2020-07-10 14:56:32,957 INFO L280 TraceCheckUtils]: 30: Hoare triple {2439#true} assume true; {2439#true} is VALID [2020-07-10 14:56:32,957 INFO L275 TraceCheckUtils]: 31: Hoare quadruple {2439#true} {2595#(<= |fibo2_#in~n| fibo2_~n)} #53#return; {2595#(<= |fibo2_#in~n| fibo2_~n)} is VALID [2020-07-10 14:56:32,958 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 [2020-07-10 14:56:32,958 INFO L263 TraceCheckUtils]: 33: Hoare triple {2595#(<= |fibo2_#in~n| fibo2_~n)} call #t~ret3 := fibo1(~n - 2); {2439#true} is VALID [2020-07-10 14:56:32,959 INFO L280 TraceCheckUtils]: 34: Hoare triple {2439#true} ~n := #in~n; {2582#(<= |fibo1_#in~n| fibo1_~n)} is VALID [2020-07-10 14:56:32,960 INFO L280 TraceCheckUtils]: 35: Hoare triple {2582#(<= |fibo1_#in~n| fibo1_~n)} assume ~n < 1;#res := 0; {2560#(<= |fibo1_#in~n| 0)} is VALID [2020-07-10 14:56:32,960 INFO L280 TraceCheckUtils]: 36: Hoare triple {2560#(<= |fibo1_#in~n| 0)} assume true; {2560#(<= |fibo1_#in~n| 0)} is VALID [2020-07-10 14:56:32,961 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 [2020-07-10 14:56:32,962 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~ret2;havoc #t~ret3; {2677#(<= |fibo2_#in~n| 2)} is VALID [2020-07-10 14:56:32,963 INFO L280 TraceCheckUtils]: 39: Hoare triple {2677#(<= |fibo2_#in~n| 2)} assume true; {2677#(<= |fibo2_#in~n| 2)} is VALID [2020-07-10 14:56:32,964 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 [2020-07-10 14:56:32,965 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 [2020-07-10 14:56:32,965 INFO L263 TraceCheckUtils]: 42: Hoare triple {2687#(<= |fibo1_#in~n| 3)} call #t~ret1 := fibo2(~n - 2); {2439#true} is VALID [2020-07-10 14:56:32,965 INFO L280 TraceCheckUtils]: 43: Hoare triple {2439#true} ~n := #in~n; {2439#true} is VALID [2020-07-10 14:56:32,965 INFO L280 TraceCheckUtils]: 44: Hoare triple {2439#true} assume !(~n < 1); {2439#true} is VALID [2020-07-10 14:56:32,965 INFO L280 TraceCheckUtils]: 45: Hoare triple {2439#true} assume 1 == ~n;#res := 1; {2439#true} is VALID [2020-07-10 14:56:32,966 INFO L280 TraceCheckUtils]: 46: Hoare triple {2439#true} assume true; {2439#true} is VALID [2020-07-10 14:56:32,966 INFO L275 TraceCheckUtils]: 47: Hoare quadruple {2439#true} {2687#(<= |fibo1_#in~n| 3)} #59#return; {2687#(<= |fibo1_#in~n| 3)} is VALID [2020-07-10 14:56:32,967 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 [2020-07-10 14:56:32,967 INFO L280 TraceCheckUtils]: 49: Hoare triple {2687#(<= |fibo1_#in~n| 3)} assume true; {2687#(<= |fibo1_#in~n| 3)} is VALID [2020-07-10 14:56:32,968 INFO L275 TraceCheckUtils]: 50: Hoare quadruple {2687#(<= |fibo1_#in~n| 3)} {2443#(<= 4 main_~x~0)} #51#return; {2440#false} is VALID [2020-07-10 14:56:32,969 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 [2020-07-10 14:56:32,969 INFO L280 TraceCheckUtils]: 52: Hoare triple {2440#false} assume 3 != ~result~0; {2440#false} is VALID [2020-07-10 14:56:32,969 INFO L280 TraceCheckUtils]: 53: Hoare triple {2440#false} assume !false; {2440#false} is VALID [2020-07-10 14:56:32,972 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 12 proven. 12 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-07-10 14:56:32,972 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-10 14:56:32,972 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2020-07-10 14:56:32,973 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701258319] [2020-07-10 14:56:32,973 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 54 [2020-07-10 14:56:32,974 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 14:56:32,975 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 12 states. [2020-07-10 14:56:33,059 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 73 edges. 73 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 14:56:33,059 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-10 14:56:33,059 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-10 14:56:33,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-10 14:56:33,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-07-10 14:56:33,060 INFO L87 Difference]: Start difference. First operand 106 states and 169 transitions. Second operand 12 states. [2020-07-10 14:56:34,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 14:56:34,491 INFO L93 Difference]: Finished difference Result 265 states and 511 transitions. [2020-07-10 14:56:34,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-07-10 14:56:34,491 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 54 [2020-07-10 14:56:34,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 14:56:34,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-07-10 14:56:34,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 122 transitions. [2020-07-10 14:56:34,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-07-10 14:56:34,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 122 transitions. [2020-07-10 14:56:34,500 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 15 states and 122 transitions. [2020-07-10 14:56:34,652 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 122 edges. 122 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 14:56:34,660 INFO L225 Difference]: With dead ends: 265 [2020-07-10 14:56:34,660 INFO L226 Difference]: Without dead ends: 165 [2020-07-10 14:56:34,662 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 [2020-07-10 14:56:34,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2020-07-10 14:56:34,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 142. [2020-07-10 14:56:34,775 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 14:56:34,775 INFO L82 GeneralOperation]: Start isEquivalent. First operand 165 states. Second operand 142 states. [2020-07-10 14:56:34,775 INFO L74 IsIncluded]: Start isIncluded. First operand 165 states. Second operand 142 states. [2020-07-10 14:56:34,775 INFO L87 Difference]: Start difference. First operand 165 states. Second operand 142 states. [2020-07-10 14:56:34,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 14:56:34,790 INFO L93 Difference]: Finished difference Result 165 states and 285 transitions. [2020-07-10 14:56:34,790 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 285 transitions. [2020-07-10 14:56:34,792 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 14:56:34,792 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 14:56:34,792 INFO L74 IsIncluded]: Start isIncluded. First operand 142 states. Second operand 165 states. [2020-07-10 14:56:34,792 INFO L87 Difference]: Start difference. First operand 142 states. Second operand 165 states. [2020-07-10 14:56:34,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 14:56:34,806 INFO L93 Difference]: Finished difference Result 165 states and 285 transitions. [2020-07-10 14:56:34,806 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 285 transitions. [2020-07-10 14:56:34,808 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 14:56:34,808 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 14:56:34,808 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 14:56:34,808 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 14:56:34,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2020-07-10 14:56:34,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 244 transitions. [2020-07-10 14:56:34,820 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 244 transitions. Word has length 54 [2020-07-10 14:56:34,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 14:56:34,820 INFO L479 AbstractCegarLoop]: Abstraction has 142 states and 244 transitions. [2020-07-10 14:56:34,820 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-10 14:56:34,820 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 244 transitions. [2020-07-10 14:56:34,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-07-10 14:56:34,822 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 14:56:34,822 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] [2020-07-10 14:56:35,038 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2020-07-10 14:56:35,039 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 14:56:35,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 14:56:35,039 INFO L82 PathProgramCache]: Analyzing trace with hash -242988780, now seen corresponding path program 1 times [2020-07-10 14:56:35,040 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-10 14:56:35,040 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588336637] [2020-07-10 14:56:35,040 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 14:56:35,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:56:35,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:56:35,089 INFO L280 TraceCheckUtils]: 0: Hoare triple {3599#true} assume true; {3599#true} is VALID [2020-07-10 14:56:35,090 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {3599#true} {3599#true} #47#return; {3599#true} is VALID [2020-07-10 14:56:35,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:56:35,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:56:35,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:56:35,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:56:35,219 INFO L280 TraceCheckUtils]: 0: Hoare triple {3599#true} ~n := #in~n; {3599#true} is VALID [2020-07-10 14:56:35,220 INFO L280 TraceCheckUtils]: 1: Hoare triple {3599#true} assume !(~n < 1); {3599#true} is VALID [2020-07-10 14:56:35,220 INFO L280 TraceCheckUtils]: 2: Hoare triple {3599#true} assume 1 == ~n;#res := 1; {3599#true} is VALID [2020-07-10 14:56:35,220 INFO L280 TraceCheckUtils]: 3: Hoare triple {3599#true} assume true; {3599#true} is VALID [2020-07-10 14:56:35,221 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {3599#true} {3715#(<= 2 |fibo1_#in~n|)} #57#return; {3715#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-10 14:56:35,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:56:35,225 INFO L280 TraceCheckUtils]: 0: Hoare triple {3599#true} ~n := #in~n; {3599#true} is VALID [2020-07-10 14:56:35,225 INFO L280 TraceCheckUtils]: 1: Hoare triple {3599#true} assume ~n < 1;#res := 0; {3599#true} is VALID [2020-07-10 14:56:35,225 INFO L280 TraceCheckUtils]: 2: Hoare triple {3599#true} assume true; {3599#true} is VALID [2020-07-10 14:56:35,226 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {3599#true} {3715#(<= 2 |fibo1_#in~n|)} #59#return; {3715#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-10 14:56:35,227 INFO L280 TraceCheckUtils]: 0: Hoare triple {3599#true} ~n := #in~n; {3713#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-10 14:56:35,228 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 [2020-07-10 14:56:35,229 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 [2020-07-10 14:56:35,229 INFO L263 TraceCheckUtils]: 3: Hoare triple {3715#(<= 2 |fibo1_#in~n|)} call #t~ret0 := fibo2(~n - 1); {3599#true} is VALID [2020-07-10 14:56:35,229 INFO L280 TraceCheckUtils]: 4: Hoare triple {3599#true} ~n := #in~n; {3599#true} is VALID [2020-07-10 14:56:35,229 INFO L280 TraceCheckUtils]: 5: Hoare triple {3599#true} assume !(~n < 1); {3599#true} is VALID [2020-07-10 14:56:35,229 INFO L280 TraceCheckUtils]: 6: Hoare triple {3599#true} assume 1 == ~n;#res := 1; {3599#true} is VALID [2020-07-10 14:56:35,230 INFO L280 TraceCheckUtils]: 7: Hoare triple {3599#true} assume true; {3599#true} is VALID [2020-07-10 14:56:35,231 INFO L275 TraceCheckUtils]: 8: Hoare quadruple {3599#true} {3715#(<= 2 |fibo1_#in~n|)} #57#return; {3715#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-10 14:56:35,231 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 [2020-07-10 14:56:35,231 INFO L263 TraceCheckUtils]: 10: Hoare triple {3715#(<= 2 |fibo1_#in~n|)} call #t~ret1 := fibo2(~n - 2); {3599#true} is VALID [2020-07-10 14:56:35,231 INFO L280 TraceCheckUtils]: 11: Hoare triple {3599#true} ~n := #in~n; {3599#true} is VALID [2020-07-10 14:56:35,232 INFO L280 TraceCheckUtils]: 12: Hoare triple {3599#true} assume ~n < 1;#res := 0; {3599#true} is VALID [2020-07-10 14:56:35,232 INFO L280 TraceCheckUtils]: 13: Hoare triple {3599#true} assume true; {3599#true} is VALID [2020-07-10 14:56:35,233 INFO L275 TraceCheckUtils]: 14: Hoare quadruple {3599#true} {3715#(<= 2 |fibo1_#in~n|)} #59#return; {3715#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-10 14:56:35,233 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 [2020-07-10 14:56:35,234 INFO L280 TraceCheckUtils]: 16: Hoare triple {3715#(<= 2 |fibo1_#in~n|)} assume true; {3715#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-10 14:56:35,235 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 [2020-07-10 14:56:35,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:56:35,240 INFO L280 TraceCheckUtils]: 0: Hoare triple {3599#true} ~n := #in~n; {3599#true} is VALID [2020-07-10 14:56:35,240 INFO L280 TraceCheckUtils]: 1: Hoare triple {3599#true} assume !(~n < 1); {3599#true} is VALID [2020-07-10 14:56:35,240 INFO L280 TraceCheckUtils]: 2: Hoare triple {3599#true} assume 1 == ~n;#res := 1; {3599#true} is VALID [2020-07-10 14:56:35,240 INFO L280 TraceCheckUtils]: 3: Hoare triple {3599#true} assume true; {3599#true} is VALID [2020-07-10 14:56:35,241 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {3599#true} {3707#(<= 3 |fibo2_#in~n|)} #55#return; {3707#(<= 3 |fibo2_#in~n|)} is VALID [2020-07-10 14:56:35,242 INFO L280 TraceCheckUtils]: 0: Hoare triple {3599#true} ~n := #in~n; {3688#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-10 14:56:35,242 INFO L280 TraceCheckUtils]: 1: Hoare triple {3688#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {3688#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-10 14:56:35,243 INFO L280 TraceCheckUtils]: 2: Hoare triple {3688#(= fibo2_~n |fibo2_#in~n|)} assume !(1 == ~n); {3688#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-10 14:56:35,243 INFO L263 TraceCheckUtils]: 3: Hoare triple {3688#(= fibo2_~n |fibo2_#in~n|)} call #t~ret2 := fibo1(~n - 1); {3599#true} is VALID [2020-07-10 14:56:35,244 INFO L280 TraceCheckUtils]: 4: Hoare triple {3599#true} ~n := #in~n; {3713#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-10 14:56:35,245 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 [2020-07-10 14:56:35,245 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 [2020-07-10 14:56:35,246 INFO L263 TraceCheckUtils]: 7: Hoare triple {3715#(<= 2 |fibo1_#in~n|)} call #t~ret0 := fibo2(~n - 1); {3599#true} is VALID [2020-07-10 14:56:35,246 INFO L280 TraceCheckUtils]: 8: Hoare triple {3599#true} ~n := #in~n; {3599#true} is VALID [2020-07-10 14:56:35,246 INFO L280 TraceCheckUtils]: 9: Hoare triple {3599#true} assume !(~n < 1); {3599#true} is VALID [2020-07-10 14:56:35,246 INFO L280 TraceCheckUtils]: 10: Hoare triple {3599#true} assume 1 == ~n;#res := 1; {3599#true} is VALID [2020-07-10 14:56:35,246 INFO L280 TraceCheckUtils]: 11: Hoare triple {3599#true} assume true; {3599#true} is VALID [2020-07-10 14:56:35,247 INFO L275 TraceCheckUtils]: 12: Hoare quadruple {3599#true} {3715#(<= 2 |fibo1_#in~n|)} #57#return; {3715#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-10 14:56:35,248 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 [2020-07-10 14:56:35,248 INFO L263 TraceCheckUtils]: 14: Hoare triple {3715#(<= 2 |fibo1_#in~n|)} call #t~ret1 := fibo2(~n - 2); {3599#true} is VALID [2020-07-10 14:56:35,248 INFO L280 TraceCheckUtils]: 15: Hoare triple {3599#true} ~n := #in~n; {3599#true} is VALID [2020-07-10 14:56:35,248 INFO L280 TraceCheckUtils]: 16: Hoare triple {3599#true} assume ~n < 1;#res := 0; {3599#true} is VALID [2020-07-10 14:56:35,248 INFO L280 TraceCheckUtils]: 17: Hoare triple {3599#true} assume true; {3599#true} is VALID [2020-07-10 14:56:35,249 INFO L275 TraceCheckUtils]: 18: Hoare quadruple {3599#true} {3715#(<= 2 |fibo1_#in~n|)} #59#return; {3715#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-10 14:56:35,250 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 [2020-07-10 14:56:35,250 INFO L280 TraceCheckUtils]: 20: Hoare triple {3715#(<= 2 |fibo1_#in~n|)} assume true; {3715#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-10 14:56:35,251 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 [2020-07-10 14:56:35,252 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 [2020-07-10 14:56:35,252 INFO L263 TraceCheckUtils]: 23: Hoare triple {3707#(<= 3 |fibo2_#in~n|)} call #t~ret3 := fibo1(~n - 2); {3599#true} is VALID [2020-07-10 14:56:35,252 INFO L280 TraceCheckUtils]: 24: Hoare triple {3599#true} ~n := #in~n; {3599#true} is VALID [2020-07-10 14:56:35,253 INFO L280 TraceCheckUtils]: 25: Hoare triple {3599#true} assume !(~n < 1); {3599#true} is VALID [2020-07-10 14:56:35,253 INFO L280 TraceCheckUtils]: 26: Hoare triple {3599#true} assume 1 == ~n;#res := 1; {3599#true} is VALID [2020-07-10 14:56:35,253 INFO L280 TraceCheckUtils]: 27: Hoare triple {3599#true} assume true; {3599#true} is VALID [2020-07-10 14:56:35,254 INFO L275 TraceCheckUtils]: 28: Hoare quadruple {3599#true} {3707#(<= 3 |fibo2_#in~n|)} #55#return; {3707#(<= 3 |fibo2_#in~n|)} is VALID [2020-07-10 14:56:35,254 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~ret2;havoc #t~ret3; {3707#(<= 3 |fibo2_#in~n|)} is VALID [2020-07-10 14:56:35,255 INFO L280 TraceCheckUtils]: 30: Hoare triple {3707#(<= 3 |fibo2_#in~n|)} assume true; {3707#(<= 3 |fibo2_#in~n|)} is VALID [2020-07-10 14:56:35,256 INFO L275 TraceCheckUtils]: 31: Hoare quadruple {3707#(<= 3 |fibo2_#in~n|)} {3599#true} #57#return; {3682#(<= 4 fibo1_~n)} is VALID [2020-07-10 14:56:35,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:56:35,275 INFO L280 TraceCheckUtils]: 0: Hoare triple {3599#true} ~n := #in~n; {3688#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-10 14:56:35,276 INFO L280 TraceCheckUtils]: 1: Hoare triple {3688#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {3688#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-10 14:56:35,276 INFO L280 TraceCheckUtils]: 2: Hoare triple {3688#(= fibo2_~n |fibo2_#in~n|)} assume 1 == ~n;#res := 1; {3725#(<= |fibo2_#in~n| 1)} is VALID [2020-07-10 14:56:35,277 INFO L280 TraceCheckUtils]: 3: Hoare triple {3725#(<= |fibo2_#in~n| 1)} assume true; {3725#(<= |fibo2_#in~n| 1)} is VALID [2020-07-10 14:56:35,278 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {3725#(<= |fibo2_#in~n| 1)} {3682#(<= 4 fibo1_~n)} #59#return; {3600#false} is VALID [2020-07-10 14:56:35,278 INFO L280 TraceCheckUtils]: 0: Hoare triple {3599#true} ~n := #in~n; {3599#true} is VALID [2020-07-10 14:56:35,279 INFO L280 TraceCheckUtils]: 1: Hoare triple {3599#true} assume !(~n < 1); {3599#true} is VALID [2020-07-10 14:56:35,279 INFO L280 TraceCheckUtils]: 2: Hoare triple {3599#true} assume !(1 == ~n); {3599#true} is VALID [2020-07-10 14:56:35,279 INFO L263 TraceCheckUtils]: 3: Hoare triple {3599#true} call #t~ret0 := fibo2(~n - 1); {3599#true} is VALID [2020-07-10 14:56:35,279 INFO L280 TraceCheckUtils]: 4: Hoare triple {3599#true} ~n := #in~n; {3688#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-10 14:56:35,280 INFO L280 TraceCheckUtils]: 5: Hoare triple {3688#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {3688#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-10 14:56:35,280 INFO L280 TraceCheckUtils]: 6: Hoare triple {3688#(= fibo2_~n |fibo2_#in~n|)} assume !(1 == ~n); {3688#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-10 14:56:35,281 INFO L263 TraceCheckUtils]: 7: Hoare triple {3688#(= fibo2_~n |fibo2_#in~n|)} call #t~ret2 := fibo1(~n - 1); {3599#true} is VALID [2020-07-10 14:56:35,281 INFO L280 TraceCheckUtils]: 8: Hoare triple {3599#true} ~n := #in~n; {3713#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-10 14:56:35,282 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 [2020-07-10 14:56:35,283 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 [2020-07-10 14:56:35,283 INFO L263 TraceCheckUtils]: 11: Hoare triple {3715#(<= 2 |fibo1_#in~n|)} call #t~ret0 := fibo2(~n - 1); {3599#true} is VALID [2020-07-10 14:56:35,283 INFO L280 TraceCheckUtils]: 12: Hoare triple {3599#true} ~n := #in~n; {3599#true} is VALID [2020-07-10 14:56:35,283 INFO L280 TraceCheckUtils]: 13: Hoare triple {3599#true} assume !(~n < 1); {3599#true} is VALID [2020-07-10 14:56:35,283 INFO L280 TraceCheckUtils]: 14: Hoare triple {3599#true} assume 1 == ~n;#res := 1; {3599#true} is VALID [2020-07-10 14:56:35,284 INFO L280 TraceCheckUtils]: 15: Hoare triple {3599#true} assume true; {3599#true} is VALID [2020-07-10 14:56:35,284 INFO L275 TraceCheckUtils]: 16: Hoare quadruple {3599#true} {3715#(<= 2 |fibo1_#in~n|)} #57#return; {3715#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-10 14:56:35,285 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 [2020-07-10 14:56:35,285 INFO L263 TraceCheckUtils]: 18: Hoare triple {3715#(<= 2 |fibo1_#in~n|)} call #t~ret1 := fibo2(~n - 2); {3599#true} is VALID [2020-07-10 14:56:35,285 INFO L280 TraceCheckUtils]: 19: Hoare triple {3599#true} ~n := #in~n; {3599#true} is VALID [2020-07-10 14:56:35,286 INFO L280 TraceCheckUtils]: 20: Hoare triple {3599#true} assume ~n < 1;#res := 0; {3599#true} is VALID [2020-07-10 14:56:35,286 INFO L280 TraceCheckUtils]: 21: Hoare triple {3599#true} assume true; {3599#true} is VALID [2020-07-10 14:56:35,286 INFO L275 TraceCheckUtils]: 22: Hoare quadruple {3599#true} {3715#(<= 2 |fibo1_#in~n|)} #59#return; {3715#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-10 14:56:35,287 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 [2020-07-10 14:56:35,287 INFO L280 TraceCheckUtils]: 24: Hoare triple {3715#(<= 2 |fibo1_#in~n|)} assume true; {3715#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-10 14:56:35,289 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 [2020-07-10 14:56:35,289 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 [2020-07-10 14:56:35,289 INFO L263 TraceCheckUtils]: 27: Hoare triple {3707#(<= 3 |fibo2_#in~n|)} call #t~ret3 := fibo1(~n - 2); {3599#true} is VALID [2020-07-10 14:56:35,290 INFO L280 TraceCheckUtils]: 28: Hoare triple {3599#true} ~n := #in~n; {3599#true} is VALID [2020-07-10 14:56:35,290 INFO L280 TraceCheckUtils]: 29: Hoare triple {3599#true} assume !(~n < 1); {3599#true} is VALID [2020-07-10 14:56:35,290 INFO L280 TraceCheckUtils]: 30: Hoare triple {3599#true} assume 1 == ~n;#res := 1; {3599#true} is VALID [2020-07-10 14:56:35,290 INFO L280 TraceCheckUtils]: 31: Hoare triple {3599#true} assume true; {3599#true} is VALID [2020-07-10 14:56:35,291 INFO L275 TraceCheckUtils]: 32: Hoare quadruple {3599#true} {3707#(<= 3 |fibo2_#in~n|)} #55#return; {3707#(<= 3 |fibo2_#in~n|)} is VALID [2020-07-10 14:56:35,291 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~ret2;havoc #t~ret3; {3707#(<= 3 |fibo2_#in~n|)} is VALID [2020-07-10 14:56:35,292 INFO L280 TraceCheckUtils]: 34: Hoare triple {3707#(<= 3 |fibo2_#in~n|)} assume true; {3707#(<= 3 |fibo2_#in~n|)} is VALID [2020-07-10 14:56:35,293 INFO L275 TraceCheckUtils]: 35: Hoare quadruple {3707#(<= 3 |fibo2_#in~n|)} {3599#true} #57#return; {3682#(<= 4 fibo1_~n)} is VALID [2020-07-10 14:56:35,293 INFO L280 TraceCheckUtils]: 36: Hoare triple {3682#(<= 4 fibo1_~n)} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {3682#(<= 4 fibo1_~n)} is VALID [2020-07-10 14:56:35,294 INFO L263 TraceCheckUtils]: 37: Hoare triple {3682#(<= 4 fibo1_~n)} call #t~ret1 := fibo2(~n - 2); {3599#true} is VALID [2020-07-10 14:56:35,294 INFO L280 TraceCheckUtils]: 38: Hoare triple {3599#true} ~n := #in~n; {3688#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-10 14:56:35,295 INFO L280 TraceCheckUtils]: 39: Hoare triple {3688#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {3688#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-10 14:56:35,296 INFO L280 TraceCheckUtils]: 40: Hoare triple {3688#(= fibo2_~n |fibo2_#in~n|)} assume 1 == ~n;#res := 1; {3725#(<= |fibo2_#in~n| 1)} is VALID [2020-07-10 14:56:35,296 INFO L280 TraceCheckUtils]: 41: Hoare triple {3725#(<= |fibo2_#in~n| 1)} assume true; {3725#(<= |fibo2_#in~n| 1)} is VALID [2020-07-10 14:56:35,297 INFO L275 TraceCheckUtils]: 42: Hoare quadruple {3725#(<= |fibo2_#in~n| 1)} {3682#(<= 4 fibo1_~n)} #59#return; {3600#false} is VALID [2020-07-10 14:56:35,297 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 [2020-07-10 14:56:35,298 INFO L280 TraceCheckUtils]: 44: Hoare triple {3600#false} assume true; {3600#false} is VALID [2020-07-10 14:56:35,298 INFO L275 TraceCheckUtils]: 45: Hoare quadruple {3600#false} {3603#(<= 4 main_~x~0)} #51#return; {3600#false} is VALID [2020-07-10 14:56:35,300 INFO L263 TraceCheckUtils]: 0: Hoare triple {3599#true} call ULTIMATE.init(); {3599#true} is VALID [2020-07-10 14:56:35,300 INFO L280 TraceCheckUtils]: 1: Hoare triple {3599#true} assume true; {3599#true} is VALID [2020-07-10 14:56:35,300 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {3599#true} {3599#true} #47#return; {3599#true} is VALID [2020-07-10 14:56:35,300 INFO L263 TraceCheckUtils]: 3: Hoare triple {3599#true} call #t~ret5 := main(); {3599#true} is VALID [2020-07-10 14:56:35,301 INFO L280 TraceCheckUtils]: 4: Hoare triple {3599#true} ~x~0 := 4; {3603#(<= 4 main_~x~0)} is VALID [2020-07-10 14:56:35,301 INFO L263 TraceCheckUtils]: 5: Hoare triple {3603#(<= 4 main_~x~0)} call #t~ret4 := fibo1(~x~0); {3599#true} is VALID [2020-07-10 14:56:35,301 INFO L280 TraceCheckUtils]: 6: Hoare triple {3599#true} ~n := #in~n; {3599#true} is VALID [2020-07-10 14:56:35,302 INFO L280 TraceCheckUtils]: 7: Hoare triple {3599#true} assume !(~n < 1); {3599#true} is VALID [2020-07-10 14:56:35,302 INFO L280 TraceCheckUtils]: 8: Hoare triple {3599#true} assume !(1 == ~n); {3599#true} is VALID [2020-07-10 14:56:35,302 INFO L263 TraceCheckUtils]: 9: Hoare triple {3599#true} call #t~ret0 := fibo2(~n - 1); {3599#true} is VALID [2020-07-10 14:56:35,302 INFO L280 TraceCheckUtils]: 10: Hoare triple {3599#true} ~n := #in~n; {3688#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-10 14:56:35,303 INFO L280 TraceCheckUtils]: 11: Hoare triple {3688#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {3688#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-10 14:56:35,303 INFO L280 TraceCheckUtils]: 12: Hoare triple {3688#(= fibo2_~n |fibo2_#in~n|)} assume !(1 == ~n); {3688#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-10 14:56:35,304 INFO L263 TraceCheckUtils]: 13: Hoare triple {3688#(= fibo2_~n |fibo2_#in~n|)} call #t~ret2 := fibo1(~n - 1); {3599#true} is VALID [2020-07-10 14:56:35,304 INFO L280 TraceCheckUtils]: 14: Hoare triple {3599#true} ~n := #in~n; {3713#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-10 14:56:35,305 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 [2020-07-10 14:56:35,306 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 [2020-07-10 14:56:35,306 INFO L263 TraceCheckUtils]: 17: Hoare triple {3715#(<= 2 |fibo1_#in~n|)} call #t~ret0 := fibo2(~n - 1); {3599#true} is VALID [2020-07-10 14:56:35,306 INFO L280 TraceCheckUtils]: 18: Hoare triple {3599#true} ~n := #in~n; {3599#true} is VALID [2020-07-10 14:56:35,306 INFO L280 TraceCheckUtils]: 19: Hoare triple {3599#true} assume !(~n < 1); {3599#true} is VALID [2020-07-10 14:56:35,307 INFO L280 TraceCheckUtils]: 20: Hoare triple {3599#true} assume 1 == ~n;#res := 1; {3599#true} is VALID [2020-07-10 14:56:35,307 INFO L280 TraceCheckUtils]: 21: Hoare triple {3599#true} assume true; {3599#true} is VALID [2020-07-10 14:56:35,308 INFO L275 TraceCheckUtils]: 22: Hoare quadruple {3599#true} {3715#(<= 2 |fibo1_#in~n|)} #57#return; {3715#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-10 14:56:35,308 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 [2020-07-10 14:56:35,308 INFO L263 TraceCheckUtils]: 24: Hoare triple {3715#(<= 2 |fibo1_#in~n|)} call #t~ret1 := fibo2(~n - 2); {3599#true} is VALID [2020-07-10 14:56:35,308 INFO L280 TraceCheckUtils]: 25: Hoare triple {3599#true} ~n := #in~n; {3599#true} is VALID [2020-07-10 14:56:35,309 INFO L280 TraceCheckUtils]: 26: Hoare triple {3599#true} assume ~n < 1;#res := 0; {3599#true} is VALID [2020-07-10 14:56:35,309 INFO L280 TraceCheckUtils]: 27: Hoare triple {3599#true} assume true; {3599#true} is VALID [2020-07-10 14:56:35,310 INFO L275 TraceCheckUtils]: 28: Hoare quadruple {3599#true} {3715#(<= 2 |fibo1_#in~n|)} #59#return; {3715#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-10 14:56:35,310 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 [2020-07-10 14:56:35,311 INFO L280 TraceCheckUtils]: 30: Hoare triple {3715#(<= 2 |fibo1_#in~n|)} assume true; {3715#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-10 14:56:35,312 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 [2020-07-10 14:56:35,312 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 [2020-07-10 14:56:35,312 INFO L263 TraceCheckUtils]: 33: Hoare triple {3707#(<= 3 |fibo2_#in~n|)} call #t~ret3 := fibo1(~n - 2); {3599#true} is VALID [2020-07-10 14:56:35,313 INFO L280 TraceCheckUtils]: 34: Hoare triple {3599#true} ~n := #in~n; {3599#true} is VALID [2020-07-10 14:56:35,313 INFO L280 TraceCheckUtils]: 35: Hoare triple {3599#true} assume !(~n < 1); {3599#true} is VALID [2020-07-10 14:56:35,313 INFO L280 TraceCheckUtils]: 36: Hoare triple {3599#true} assume 1 == ~n;#res := 1; {3599#true} is VALID [2020-07-10 14:56:35,313 INFO L280 TraceCheckUtils]: 37: Hoare triple {3599#true} assume true; {3599#true} is VALID [2020-07-10 14:56:35,314 INFO L275 TraceCheckUtils]: 38: Hoare quadruple {3599#true} {3707#(<= 3 |fibo2_#in~n|)} #55#return; {3707#(<= 3 |fibo2_#in~n|)} is VALID [2020-07-10 14:56:35,314 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~ret2;havoc #t~ret3; {3707#(<= 3 |fibo2_#in~n|)} is VALID [2020-07-10 14:56:35,315 INFO L280 TraceCheckUtils]: 40: Hoare triple {3707#(<= 3 |fibo2_#in~n|)} assume true; {3707#(<= 3 |fibo2_#in~n|)} is VALID [2020-07-10 14:56:35,316 INFO L275 TraceCheckUtils]: 41: Hoare quadruple {3707#(<= 3 |fibo2_#in~n|)} {3599#true} #57#return; {3682#(<= 4 fibo1_~n)} is VALID [2020-07-10 14:56:35,316 INFO L280 TraceCheckUtils]: 42: Hoare triple {3682#(<= 4 fibo1_~n)} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {3682#(<= 4 fibo1_~n)} is VALID [2020-07-10 14:56:35,317 INFO L263 TraceCheckUtils]: 43: Hoare triple {3682#(<= 4 fibo1_~n)} call #t~ret1 := fibo2(~n - 2); {3599#true} is VALID [2020-07-10 14:56:35,317 INFO L280 TraceCheckUtils]: 44: Hoare triple {3599#true} ~n := #in~n; {3688#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-10 14:56:35,318 INFO L280 TraceCheckUtils]: 45: Hoare triple {3688#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {3688#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-10 14:56:35,318 INFO L280 TraceCheckUtils]: 46: Hoare triple {3688#(= fibo2_~n |fibo2_#in~n|)} assume 1 == ~n;#res := 1; {3725#(<= |fibo2_#in~n| 1)} is VALID [2020-07-10 14:56:35,319 INFO L280 TraceCheckUtils]: 47: Hoare triple {3725#(<= |fibo2_#in~n| 1)} assume true; {3725#(<= |fibo2_#in~n| 1)} is VALID [2020-07-10 14:56:35,320 INFO L275 TraceCheckUtils]: 48: Hoare quadruple {3725#(<= |fibo2_#in~n| 1)} {3682#(<= 4 fibo1_~n)} #59#return; {3600#false} is VALID [2020-07-10 14:56:35,320 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 [2020-07-10 14:56:35,320 INFO L280 TraceCheckUtils]: 50: Hoare triple {3600#false} assume true; {3600#false} is VALID [2020-07-10 14:56:35,320 INFO L275 TraceCheckUtils]: 51: Hoare quadruple {3600#false} {3603#(<= 4 main_~x~0)} #51#return; {3600#false} is VALID [2020-07-10 14:56:35,320 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 [2020-07-10 14:56:35,321 INFO L280 TraceCheckUtils]: 53: Hoare triple {3600#false} assume 3 != ~result~0; {3600#false} is VALID [2020-07-10 14:56:35,321 INFO L280 TraceCheckUtils]: 54: Hoare triple {3600#false} assume !false; {3600#false} is VALID [2020-07-10 14:56:35,323 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 19 proven. 11 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-07-10 14:56:35,323 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588336637] [2020-07-10 14:56:35,324 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2059322237] [2020-07-10 14:56:35,324 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 [2020-07-10 14:56:35,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:56:35,357 INFO L264 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-10 14:56:35,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:56:35,368 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-10 14:56:35,485 INFO L263 TraceCheckUtils]: 0: Hoare triple {3599#true} call ULTIMATE.init(); {3599#true} is VALID [2020-07-10 14:56:35,486 INFO L280 TraceCheckUtils]: 1: Hoare triple {3599#true} assume true; {3599#true} is VALID [2020-07-10 14:56:35,486 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {3599#true} {3599#true} #47#return; {3599#true} is VALID [2020-07-10 14:56:35,486 INFO L263 TraceCheckUtils]: 3: Hoare triple {3599#true} call #t~ret5 := main(); {3599#true} is VALID [2020-07-10 14:56:35,487 INFO L280 TraceCheckUtils]: 4: Hoare triple {3599#true} ~x~0 := 4; {3603#(<= 4 main_~x~0)} is VALID [2020-07-10 14:56:35,487 INFO L263 TraceCheckUtils]: 5: Hoare triple {3603#(<= 4 main_~x~0)} call #t~ret4 := fibo1(~x~0); {3599#true} is VALID [2020-07-10 14:56:35,487 INFO L280 TraceCheckUtils]: 6: Hoare triple {3599#true} ~n := #in~n; {3747#(<= |fibo1_#in~n| fibo1_~n)} is VALID [2020-07-10 14:56:35,488 INFO L280 TraceCheckUtils]: 7: Hoare triple {3747#(<= |fibo1_#in~n| fibo1_~n)} assume !(~n < 1); {3747#(<= |fibo1_#in~n| fibo1_~n)} is VALID [2020-07-10 14:56:35,488 INFO L280 TraceCheckUtils]: 8: Hoare triple {3747#(<= |fibo1_#in~n| fibo1_~n)} assume !(1 == ~n); {3747#(<= |fibo1_#in~n| fibo1_~n)} is VALID [2020-07-10 14:56:35,488 INFO L263 TraceCheckUtils]: 9: Hoare triple {3747#(<= |fibo1_#in~n| fibo1_~n)} call #t~ret0 := fibo2(~n - 1); {3599#true} is VALID [2020-07-10 14:56:35,488 INFO L280 TraceCheckUtils]: 10: Hoare triple {3599#true} ~n := #in~n; {3599#true} is VALID [2020-07-10 14:56:35,489 INFO L280 TraceCheckUtils]: 11: Hoare triple {3599#true} assume !(~n < 1); {3599#true} is VALID [2020-07-10 14:56:35,489 INFO L280 TraceCheckUtils]: 12: Hoare triple {3599#true} assume !(1 == ~n); {3599#true} is VALID [2020-07-10 14:56:35,489 INFO L263 TraceCheckUtils]: 13: Hoare triple {3599#true} call #t~ret2 := fibo1(~n - 1); {3599#true} is VALID [2020-07-10 14:56:35,489 INFO L280 TraceCheckUtils]: 14: Hoare triple {3599#true} ~n := #in~n; {3599#true} is VALID [2020-07-10 14:56:35,489 INFO L280 TraceCheckUtils]: 15: Hoare triple {3599#true} assume !(~n < 1); {3599#true} is VALID [2020-07-10 14:56:35,489 INFO L280 TraceCheckUtils]: 16: Hoare triple {3599#true} assume !(1 == ~n); {3599#true} is VALID [2020-07-10 14:56:35,489 INFO L263 TraceCheckUtils]: 17: Hoare triple {3599#true} call #t~ret0 := fibo2(~n - 1); {3599#true} is VALID [2020-07-10 14:56:35,490 INFO L280 TraceCheckUtils]: 18: Hoare triple {3599#true} ~n := #in~n; {3599#true} is VALID [2020-07-10 14:56:35,490 INFO L280 TraceCheckUtils]: 19: Hoare triple {3599#true} assume !(~n < 1); {3599#true} is VALID [2020-07-10 14:56:35,490 INFO L280 TraceCheckUtils]: 20: Hoare triple {3599#true} assume 1 == ~n;#res := 1; {3599#true} is VALID [2020-07-10 14:56:35,490 INFO L280 TraceCheckUtils]: 21: Hoare triple {3599#true} assume true; {3599#true} is VALID [2020-07-10 14:56:35,491 INFO L275 TraceCheckUtils]: 22: Hoare quadruple {3599#true} {3599#true} #57#return; {3599#true} is VALID [2020-07-10 14:56:35,491 INFO L280 TraceCheckUtils]: 23: Hoare triple {3599#true} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {3599#true} is VALID [2020-07-10 14:56:35,491 INFO L263 TraceCheckUtils]: 24: Hoare triple {3599#true} call #t~ret1 := fibo2(~n - 2); {3599#true} is VALID [2020-07-10 14:56:35,491 INFO L280 TraceCheckUtils]: 25: Hoare triple {3599#true} ~n := #in~n; {3599#true} is VALID [2020-07-10 14:56:35,491 INFO L280 TraceCheckUtils]: 26: Hoare triple {3599#true} assume ~n < 1;#res := 0; {3599#true} is VALID [2020-07-10 14:56:35,492 INFO L280 TraceCheckUtils]: 27: Hoare triple {3599#true} assume true; {3599#true} is VALID [2020-07-10 14:56:35,492 INFO L275 TraceCheckUtils]: 28: Hoare quadruple {3599#true} {3599#true} #59#return; {3599#true} is VALID [2020-07-10 14:56:35,492 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 [2020-07-10 14:56:35,492 INFO L280 TraceCheckUtils]: 30: Hoare triple {3599#true} assume true; {3599#true} is VALID [2020-07-10 14:56:35,492 INFO L275 TraceCheckUtils]: 31: Hoare quadruple {3599#true} {3599#true} #53#return; {3599#true} is VALID [2020-07-10 14:56:35,492 INFO L280 TraceCheckUtils]: 32: Hoare triple {3599#true} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {3599#true} is VALID [2020-07-10 14:56:35,493 INFO L263 TraceCheckUtils]: 33: Hoare triple {3599#true} call #t~ret3 := fibo1(~n - 2); {3599#true} is VALID [2020-07-10 14:56:35,493 INFO L280 TraceCheckUtils]: 34: Hoare triple {3599#true} ~n := #in~n; {3599#true} is VALID [2020-07-10 14:56:35,493 INFO L280 TraceCheckUtils]: 35: Hoare triple {3599#true} assume !(~n < 1); {3599#true} is VALID [2020-07-10 14:56:35,493 INFO L280 TraceCheckUtils]: 36: Hoare triple {3599#true} assume 1 == ~n;#res := 1; {3599#true} is VALID [2020-07-10 14:56:35,493 INFO L280 TraceCheckUtils]: 37: Hoare triple {3599#true} assume true; {3599#true} is VALID [2020-07-10 14:56:35,493 INFO L275 TraceCheckUtils]: 38: Hoare quadruple {3599#true} {3599#true} #55#return; {3599#true} is VALID [2020-07-10 14:56:35,494 INFO L280 TraceCheckUtils]: 39: Hoare triple {3599#true} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647;#res := #t~ret2 + #t~ret3;havoc #t~ret2;havoc #t~ret3; {3599#true} is VALID [2020-07-10 14:56:35,494 INFO L280 TraceCheckUtils]: 40: Hoare triple {3599#true} assume true; {3599#true} is VALID [2020-07-10 14:56:35,495 INFO L275 TraceCheckUtils]: 41: Hoare quadruple {3599#true} {3747#(<= |fibo1_#in~n| fibo1_~n)} #57#return; {3747#(<= |fibo1_#in~n| fibo1_~n)} is VALID [2020-07-10 14:56:35,497 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 [2020-07-10 14:56:35,497 INFO L263 TraceCheckUtils]: 43: Hoare triple {3747#(<= |fibo1_#in~n| fibo1_~n)} call #t~ret1 := fibo2(~n - 2); {3599#true} is VALID [2020-07-10 14:56:35,501 INFO L280 TraceCheckUtils]: 44: Hoare triple {3599#true} ~n := #in~n; {3862#(<= |fibo2_#in~n| fibo2_~n)} is VALID [2020-07-10 14:56:35,502 INFO L280 TraceCheckUtils]: 45: Hoare triple {3862#(<= |fibo2_#in~n| fibo2_~n)} assume !(~n < 1); {3862#(<= |fibo2_#in~n| fibo2_~n)} is VALID [2020-07-10 14:56:35,502 INFO L280 TraceCheckUtils]: 46: Hoare triple {3862#(<= |fibo2_#in~n| fibo2_~n)} assume 1 == ~n;#res := 1; {3725#(<= |fibo2_#in~n| 1)} is VALID [2020-07-10 14:56:35,503 INFO L280 TraceCheckUtils]: 47: Hoare triple {3725#(<= |fibo2_#in~n| 1)} assume true; {3725#(<= |fibo2_#in~n| 1)} is VALID [2020-07-10 14:56:35,504 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 [2020-07-10 14:56:35,505 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 [2020-07-10 14:56:35,505 INFO L280 TraceCheckUtils]: 50: Hoare triple {3875#(<= |fibo1_#in~n| 3)} assume true; {3875#(<= |fibo1_#in~n| 3)} is VALID [2020-07-10 14:56:35,506 INFO L275 TraceCheckUtils]: 51: Hoare quadruple {3875#(<= |fibo1_#in~n| 3)} {3603#(<= 4 main_~x~0)} #51#return; {3600#false} is VALID [2020-07-10 14:56:35,506 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 [2020-07-10 14:56:35,506 INFO L280 TraceCheckUtils]: 53: Hoare triple {3600#false} assume 3 != ~result~0; {3600#false} is VALID [2020-07-10 14:56:35,507 INFO L280 TraceCheckUtils]: 54: Hoare triple {3600#false} assume !false; {3600#false} is VALID [2020-07-10 14:56:35,509 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 18 proven. 5 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2020-07-10 14:56:35,509 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-10 14:56:35,509 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7] total 13 [2020-07-10 14:56:35,509 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253662550] [2020-07-10 14:56:35,510 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 55 [2020-07-10 14:56:35,511 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 14:56:35,511 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 13 states. [2020-07-10 14:56:35,599 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 75 edges. 75 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 14:56:35,600 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-07-10 14:56:35,600 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-10 14:56:35,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-07-10 14:56:35,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2020-07-10 14:56:35,601 INFO L87 Difference]: Start difference. First operand 142 states and 244 transitions. Second operand 13 states. [2020-07-10 14:56:36,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 14:56:36,942 INFO L93 Difference]: Finished difference Result 304 states and 583 transitions. [2020-07-10 14:56:36,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-07-10 14:56:36,942 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 55 [2020-07-10 14:56:36,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 14:56:36,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-07-10 14:56:36,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 125 transitions. [2020-07-10 14:56:36,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-07-10 14:56:36,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 125 transitions. [2020-07-10 14:56:36,951 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 16 states and 125 transitions. [2020-07-10 14:56:37,121 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 125 edges. 125 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 14:56:37,125 INFO L225 Difference]: With dead ends: 304 [2020-07-10 14:56:37,125 INFO L226 Difference]: Without dead ends: 101 [2020-07-10 14:56:37,128 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 [2020-07-10 14:56:37,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2020-07-10 14:56:37,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 83. [2020-07-10 14:56:37,194 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 14:56:37,194 INFO L82 GeneralOperation]: Start isEquivalent. First operand 101 states. Second operand 83 states. [2020-07-10 14:56:37,194 INFO L74 IsIncluded]: Start isIncluded. First operand 101 states. Second operand 83 states. [2020-07-10 14:56:37,194 INFO L87 Difference]: Start difference. First operand 101 states. Second operand 83 states. [2020-07-10 14:56:37,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 14:56:37,202 INFO L93 Difference]: Finished difference Result 101 states and 156 transitions. [2020-07-10 14:56:37,202 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 156 transitions. [2020-07-10 14:56:37,204 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 14:56:37,204 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 14:56:37,204 INFO L74 IsIncluded]: Start isIncluded. First operand 83 states. Second operand 101 states. [2020-07-10 14:56:37,204 INFO L87 Difference]: Start difference. First operand 83 states. Second operand 101 states. [2020-07-10 14:56:37,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 14:56:37,211 INFO L93 Difference]: Finished difference Result 101 states and 156 transitions. [2020-07-10 14:56:37,212 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 156 transitions. [2020-07-10 14:56:37,213 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 14:56:37,213 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 14:56:37,213 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 14:56:37,213 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 14:56:37,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2020-07-10 14:56:37,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 126 transitions. [2020-07-10 14:56:37,220 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 126 transitions. Word has length 55 [2020-07-10 14:56:37,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 14:56:37,220 INFO L479 AbstractCegarLoop]: Abstraction has 83 states and 126 transitions. [2020-07-10 14:56:37,220 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-07-10 14:56:37,221 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 126 transitions. [2020-07-10 14:56:37,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-07-10 14:56:37,222 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 14:56:37,223 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] [2020-07-10 14:56:37,435 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-10 14:56:37,436 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 14:56:37,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 14:56:37,436 INFO L82 PathProgramCache]: Analyzing trace with hash -1751947273, now seen corresponding path program 2 times [2020-07-10 14:56:37,437 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-10 14:56:37,437 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335836868] [2020-07-10 14:56:37,437 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 14:56:37,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:56:37,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:56:37,486 INFO L280 TraceCheckUtils]: 0: Hoare triple {4610#true} assume true; {4610#true} is VALID [2020-07-10 14:56:37,486 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {4610#true} {4610#true} #47#return; {4610#true} is VALID [2020-07-10 14:56:37,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:56:37,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:56:37,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:56:37,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:56:37,613 INFO L280 TraceCheckUtils]: 0: Hoare triple {4610#true} ~n := #in~n; {4727#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-10 14:56:37,614 INFO L280 TraceCheckUtils]: 1: Hoare triple {4727#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {4727#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-10 14:56:37,614 INFO L280 TraceCheckUtils]: 2: Hoare triple {4727#(= fibo2_~n |fibo2_#in~n|)} assume 1 == ~n;#res := 1; {4763#(<= |fibo2_#in~n| 1)} is VALID [2020-07-10 14:56:37,615 INFO L280 TraceCheckUtils]: 3: Hoare triple {4763#(<= |fibo2_#in~n| 1)} assume true; {4763#(<= |fibo2_#in~n| 1)} is VALID [2020-07-10 14:56:37,616 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 [2020-07-10 14:56:37,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:56:37,621 INFO L280 TraceCheckUtils]: 0: Hoare triple {4610#true} ~n := #in~n; {4610#true} is VALID [2020-07-10 14:56:37,621 INFO L280 TraceCheckUtils]: 1: Hoare triple {4610#true} assume ~n < 1;#res := 0; {4610#true} is VALID [2020-07-10 14:56:37,621 INFO L280 TraceCheckUtils]: 2: Hoare triple {4610#true} assume true; {4610#true} is VALID [2020-07-10 14:56:37,622 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {4610#true} {4758#(<= |fibo1_#in~n| 2)} #59#return; {4758#(<= |fibo1_#in~n| 2)} is VALID [2020-07-10 14:56:37,623 INFO L280 TraceCheckUtils]: 0: Hoare triple {4610#true} ~n := #in~n; {4752#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-10 14:56:37,624 INFO L280 TraceCheckUtils]: 1: Hoare triple {4752#(= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {4752#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-10 14:56:37,624 INFO L280 TraceCheckUtils]: 2: Hoare triple {4752#(= fibo1_~n |fibo1_#in~n|)} assume !(1 == ~n); {4752#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-10 14:56:37,624 INFO L263 TraceCheckUtils]: 3: Hoare triple {4752#(= fibo1_~n |fibo1_#in~n|)} call #t~ret0 := fibo2(~n - 1); {4610#true} is VALID [2020-07-10 14:56:37,625 INFO L280 TraceCheckUtils]: 4: Hoare triple {4610#true} ~n := #in~n; {4727#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-10 14:56:37,626 INFO L280 TraceCheckUtils]: 5: Hoare triple {4727#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {4727#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-10 14:56:37,626 INFO L280 TraceCheckUtils]: 6: Hoare triple {4727#(= fibo2_~n |fibo2_#in~n|)} assume 1 == ~n;#res := 1; {4763#(<= |fibo2_#in~n| 1)} is VALID [2020-07-10 14:56:37,627 INFO L280 TraceCheckUtils]: 7: Hoare triple {4763#(<= |fibo2_#in~n| 1)} assume true; {4763#(<= |fibo2_#in~n| 1)} is VALID [2020-07-10 14:56:37,628 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 [2020-07-10 14:56:37,629 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 [2020-07-10 14:56:37,629 INFO L263 TraceCheckUtils]: 10: Hoare triple {4758#(<= |fibo1_#in~n| 2)} call #t~ret1 := fibo2(~n - 2); {4610#true} is VALID [2020-07-10 14:56:37,629 INFO L280 TraceCheckUtils]: 11: Hoare triple {4610#true} ~n := #in~n; {4610#true} is VALID [2020-07-10 14:56:37,630 INFO L280 TraceCheckUtils]: 12: Hoare triple {4610#true} assume ~n < 1;#res := 0; {4610#true} is VALID [2020-07-10 14:56:37,630 INFO L280 TraceCheckUtils]: 13: Hoare triple {4610#true} assume true; {4610#true} is VALID [2020-07-10 14:56:37,631 INFO L275 TraceCheckUtils]: 14: Hoare quadruple {4610#true} {4758#(<= |fibo1_#in~n| 2)} #59#return; {4758#(<= |fibo1_#in~n| 2)} is VALID [2020-07-10 14:56:37,631 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 [2020-07-10 14:56:37,632 INFO L280 TraceCheckUtils]: 16: Hoare triple {4758#(<= |fibo1_#in~n| 2)} assume true; {4758#(<= |fibo1_#in~n| 2)} is VALID [2020-07-10 14:56:37,633 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 [2020-07-10 14:56:37,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:56:37,638 INFO L280 TraceCheckUtils]: 0: Hoare triple {4610#true} ~n := #in~n; {4610#true} is VALID [2020-07-10 14:56:37,638 INFO L280 TraceCheckUtils]: 1: Hoare triple {4610#true} assume !(~n < 1); {4610#true} is VALID [2020-07-10 14:56:37,639 INFO L280 TraceCheckUtils]: 2: Hoare triple {4610#true} assume 1 == ~n;#res := 1; {4610#true} is VALID [2020-07-10 14:56:37,639 INFO L280 TraceCheckUtils]: 3: Hoare triple {4610#true} assume true; {4610#true} is VALID [2020-07-10 14:56:37,640 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {4610#true} {4746#(<= |fibo2_#in~n| 3)} #55#return; {4746#(<= |fibo2_#in~n| 3)} is VALID [2020-07-10 14:56:37,640 INFO L280 TraceCheckUtils]: 0: Hoare triple {4610#true} ~n := #in~n; {4727#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-10 14:56:37,641 INFO L280 TraceCheckUtils]: 1: Hoare triple {4727#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {4727#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-10 14:56:37,641 INFO L280 TraceCheckUtils]: 2: Hoare triple {4727#(= fibo2_~n |fibo2_#in~n|)} assume !(1 == ~n); {4727#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-10 14:56:37,641 INFO L263 TraceCheckUtils]: 3: Hoare triple {4727#(= fibo2_~n |fibo2_#in~n|)} call #t~ret2 := fibo1(~n - 1); {4610#true} is VALID [2020-07-10 14:56:37,642 INFO L280 TraceCheckUtils]: 4: Hoare triple {4610#true} ~n := #in~n; {4752#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-10 14:56:37,642 INFO L280 TraceCheckUtils]: 5: Hoare triple {4752#(= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {4752#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-10 14:56:37,643 INFO L280 TraceCheckUtils]: 6: Hoare triple {4752#(= fibo1_~n |fibo1_#in~n|)} assume !(1 == ~n); {4752#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-10 14:56:37,643 INFO L263 TraceCheckUtils]: 7: Hoare triple {4752#(= fibo1_~n |fibo1_#in~n|)} call #t~ret0 := fibo2(~n - 1); {4610#true} is VALID [2020-07-10 14:56:37,643 INFO L280 TraceCheckUtils]: 8: Hoare triple {4610#true} ~n := #in~n; {4727#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-10 14:56:37,644 INFO L280 TraceCheckUtils]: 9: Hoare triple {4727#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {4727#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-10 14:56:37,645 INFO L280 TraceCheckUtils]: 10: Hoare triple {4727#(= fibo2_~n |fibo2_#in~n|)} assume 1 == ~n;#res := 1; {4763#(<= |fibo2_#in~n| 1)} is VALID [2020-07-10 14:56:37,645 INFO L280 TraceCheckUtils]: 11: Hoare triple {4763#(<= |fibo2_#in~n| 1)} assume true; {4763#(<= |fibo2_#in~n| 1)} is VALID [2020-07-10 14:56:37,646 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 [2020-07-10 14:56:37,647 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 [2020-07-10 14:56:37,647 INFO L263 TraceCheckUtils]: 14: Hoare triple {4758#(<= |fibo1_#in~n| 2)} call #t~ret1 := fibo2(~n - 2); {4610#true} is VALID [2020-07-10 14:56:37,647 INFO L280 TraceCheckUtils]: 15: Hoare triple {4610#true} ~n := #in~n; {4610#true} is VALID [2020-07-10 14:56:37,648 INFO L280 TraceCheckUtils]: 16: Hoare triple {4610#true} assume ~n < 1;#res := 0; {4610#true} is VALID [2020-07-10 14:56:37,648 INFO L280 TraceCheckUtils]: 17: Hoare triple {4610#true} assume true; {4610#true} is VALID [2020-07-10 14:56:37,649 INFO L275 TraceCheckUtils]: 18: Hoare quadruple {4610#true} {4758#(<= |fibo1_#in~n| 2)} #59#return; {4758#(<= |fibo1_#in~n| 2)} is VALID [2020-07-10 14:56:37,649 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 [2020-07-10 14:56:37,650 INFO L280 TraceCheckUtils]: 20: Hoare triple {4758#(<= |fibo1_#in~n| 2)} assume true; {4758#(<= |fibo1_#in~n| 2)} is VALID [2020-07-10 14:56:37,651 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 [2020-07-10 14:56:37,651 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 [2020-07-10 14:56:37,651 INFO L263 TraceCheckUtils]: 23: Hoare triple {4746#(<= |fibo2_#in~n| 3)} call #t~ret3 := fibo1(~n - 2); {4610#true} is VALID [2020-07-10 14:56:37,652 INFO L280 TraceCheckUtils]: 24: Hoare triple {4610#true} ~n := #in~n; {4610#true} is VALID [2020-07-10 14:56:37,652 INFO L280 TraceCheckUtils]: 25: Hoare triple {4610#true} assume !(~n < 1); {4610#true} is VALID [2020-07-10 14:56:37,652 INFO L280 TraceCheckUtils]: 26: Hoare triple {4610#true} assume 1 == ~n;#res := 1; {4610#true} is VALID [2020-07-10 14:56:37,652 INFO L280 TraceCheckUtils]: 27: Hoare triple {4610#true} assume true; {4610#true} is VALID [2020-07-10 14:56:37,653 INFO L275 TraceCheckUtils]: 28: Hoare quadruple {4610#true} {4746#(<= |fibo2_#in~n| 3)} #55#return; {4746#(<= |fibo2_#in~n| 3)} is VALID [2020-07-10 14:56:37,654 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~ret2;havoc #t~ret3; {4746#(<= |fibo2_#in~n| 3)} is VALID [2020-07-10 14:56:37,654 INFO L280 TraceCheckUtils]: 30: Hoare triple {4746#(<= |fibo2_#in~n| 3)} assume true; {4746#(<= |fibo2_#in~n| 3)} is VALID [2020-07-10 14:56:37,655 INFO L275 TraceCheckUtils]: 31: Hoare quadruple {4746#(<= |fibo2_#in~n| 3)} {4610#true} #57#return; {4707#(<= fibo1_~n 4)} is VALID [2020-07-10 14:56:37,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:56:37,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:56:37,700 INFO L280 TraceCheckUtils]: 0: Hoare triple {4610#true} ~n := #in~n; {4752#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-10 14:56:37,701 INFO L280 TraceCheckUtils]: 1: Hoare triple {4752#(= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {4752#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-10 14:56:37,702 INFO L280 TraceCheckUtils]: 2: Hoare triple {4752#(= fibo1_~n |fibo1_#in~n|)} assume 1 == ~n;#res := 1; {4775#(<= |fibo1_#in~n| 1)} is VALID [2020-07-10 14:56:37,702 INFO L280 TraceCheckUtils]: 3: Hoare triple {4775#(<= |fibo1_#in~n| 1)} assume true; {4775#(<= |fibo1_#in~n| 1)} is VALID [2020-07-10 14:56:37,704 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {4775#(<= |fibo1_#in~n| 1)} {4610#true} #53#return; {4769#(<= fibo2_~n 2)} is VALID [2020-07-10 14:56:37,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:56:37,730 INFO L280 TraceCheckUtils]: 0: Hoare triple {4610#true} ~n := #in~n; {4752#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-10 14:56:37,731 INFO L280 TraceCheckUtils]: 1: Hoare triple {4752#(= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {4776#(<= 1 |fibo1_#in~n|)} is VALID [2020-07-10 14:56:37,732 INFO L280 TraceCheckUtils]: 2: Hoare triple {4776#(<= 1 |fibo1_#in~n|)} assume 1 == ~n;#res := 1; {4776#(<= 1 |fibo1_#in~n|)} is VALID [2020-07-10 14:56:37,732 INFO L280 TraceCheckUtils]: 3: Hoare triple {4776#(<= 1 |fibo1_#in~n|)} assume true; {4776#(<= 1 |fibo1_#in~n|)} is VALID [2020-07-10 14:56:37,734 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {4776#(<= 1 |fibo1_#in~n|)} {4769#(<= fibo2_~n 2)} #55#return; {4611#false} is VALID [2020-07-10 14:56:37,734 INFO L280 TraceCheckUtils]: 0: Hoare triple {4610#true} ~n := #in~n; {4610#true} is VALID [2020-07-10 14:56:37,734 INFO L280 TraceCheckUtils]: 1: Hoare triple {4610#true} assume !(~n < 1); {4610#true} is VALID [2020-07-10 14:56:37,735 INFO L280 TraceCheckUtils]: 2: Hoare triple {4610#true} assume !(1 == ~n); {4610#true} is VALID [2020-07-10 14:56:37,735 INFO L263 TraceCheckUtils]: 3: Hoare triple {4610#true} call #t~ret2 := fibo1(~n - 1); {4610#true} is VALID [2020-07-10 14:56:37,735 INFO L280 TraceCheckUtils]: 4: Hoare triple {4610#true} ~n := #in~n; {4752#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-10 14:56:37,736 INFO L280 TraceCheckUtils]: 5: Hoare triple {4752#(= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {4752#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-10 14:56:37,737 INFO L280 TraceCheckUtils]: 6: Hoare triple {4752#(= fibo1_~n |fibo1_#in~n|)} assume 1 == ~n;#res := 1; {4775#(<= |fibo1_#in~n| 1)} is VALID [2020-07-10 14:56:37,737 INFO L280 TraceCheckUtils]: 7: Hoare triple {4775#(<= |fibo1_#in~n| 1)} assume true; {4775#(<= |fibo1_#in~n| 1)} is VALID [2020-07-10 14:56:37,738 INFO L275 TraceCheckUtils]: 8: Hoare quadruple {4775#(<= |fibo1_#in~n| 1)} {4610#true} #53#return; {4769#(<= fibo2_~n 2)} is VALID [2020-07-10 14:56:37,739 INFO L280 TraceCheckUtils]: 9: Hoare triple {4769#(<= fibo2_~n 2)} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {4769#(<= fibo2_~n 2)} is VALID [2020-07-10 14:56:37,739 INFO L263 TraceCheckUtils]: 10: Hoare triple {4769#(<= fibo2_~n 2)} call #t~ret3 := fibo1(~n - 2); {4610#true} is VALID [2020-07-10 14:56:37,739 INFO L280 TraceCheckUtils]: 11: Hoare triple {4610#true} ~n := #in~n; {4752#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-10 14:56:37,740 INFO L280 TraceCheckUtils]: 12: Hoare triple {4752#(= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {4776#(<= 1 |fibo1_#in~n|)} is VALID [2020-07-10 14:56:37,741 INFO L280 TraceCheckUtils]: 13: Hoare triple {4776#(<= 1 |fibo1_#in~n|)} assume 1 == ~n;#res := 1; {4776#(<= 1 |fibo1_#in~n|)} is VALID [2020-07-10 14:56:37,741 INFO L280 TraceCheckUtils]: 14: Hoare triple {4776#(<= 1 |fibo1_#in~n|)} assume true; {4776#(<= 1 |fibo1_#in~n|)} is VALID [2020-07-10 14:56:37,742 INFO L275 TraceCheckUtils]: 15: Hoare quadruple {4776#(<= 1 |fibo1_#in~n|)} {4769#(<= fibo2_~n 2)} #55#return; {4611#false} is VALID [2020-07-10 14:56:37,742 INFO L280 TraceCheckUtils]: 16: Hoare triple {4611#false} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647;#res := #t~ret2 + #t~ret3;havoc #t~ret2;havoc #t~ret3; {4611#false} is VALID [2020-07-10 14:56:37,743 INFO L280 TraceCheckUtils]: 17: Hoare triple {4611#false} assume true; {4611#false} is VALID [2020-07-10 14:56:37,743 INFO L275 TraceCheckUtils]: 18: Hoare quadruple {4611#false} {4707#(<= fibo1_~n 4)} #59#return; {4611#false} is VALID [2020-07-10 14:56:37,743 INFO L280 TraceCheckUtils]: 0: Hoare triple {4610#true} ~n := #in~n; {4610#true} is VALID [2020-07-10 14:56:37,744 INFO L280 TraceCheckUtils]: 1: Hoare triple {4610#true} assume !(~n < 1); {4610#true} is VALID [2020-07-10 14:56:37,744 INFO L280 TraceCheckUtils]: 2: Hoare triple {4610#true} assume !(1 == ~n); {4610#true} is VALID [2020-07-10 14:56:37,744 INFO L263 TraceCheckUtils]: 3: Hoare triple {4610#true} call #t~ret0 := fibo2(~n - 1); {4610#true} is VALID [2020-07-10 14:56:37,744 INFO L280 TraceCheckUtils]: 4: Hoare triple {4610#true} ~n := #in~n; {4727#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-10 14:56:37,745 INFO L280 TraceCheckUtils]: 5: Hoare triple {4727#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {4727#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-10 14:56:37,745 INFO L280 TraceCheckUtils]: 6: Hoare triple {4727#(= fibo2_~n |fibo2_#in~n|)} assume !(1 == ~n); {4727#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-10 14:56:37,746 INFO L263 TraceCheckUtils]: 7: Hoare triple {4727#(= fibo2_~n |fibo2_#in~n|)} call #t~ret2 := fibo1(~n - 1); {4610#true} is VALID [2020-07-10 14:56:37,746 INFO L280 TraceCheckUtils]: 8: Hoare triple {4610#true} ~n := #in~n; {4752#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-10 14:56:37,747 INFO L280 TraceCheckUtils]: 9: Hoare triple {4752#(= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {4752#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-10 14:56:37,747 INFO L280 TraceCheckUtils]: 10: Hoare triple {4752#(= fibo1_~n |fibo1_#in~n|)} assume !(1 == ~n); {4752#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-10 14:56:37,748 INFO L263 TraceCheckUtils]: 11: Hoare triple {4752#(= fibo1_~n |fibo1_#in~n|)} call #t~ret0 := fibo2(~n - 1); {4610#true} is VALID [2020-07-10 14:56:37,748 INFO L280 TraceCheckUtils]: 12: Hoare triple {4610#true} ~n := #in~n; {4727#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-10 14:56:37,749 INFO L280 TraceCheckUtils]: 13: Hoare triple {4727#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {4727#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-10 14:56:37,750 INFO L280 TraceCheckUtils]: 14: Hoare triple {4727#(= fibo2_~n |fibo2_#in~n|)} assume 1 == ~n;#res := 1; {4763#(<= |fibo2_#in~n| 1)} is VALID [2020-07-10 14:56:37,751 INFO L280 TraceCheckUtils]: 15: Hoare triple {4763#(<= |fibo2_#in~n| 1)} assume true; {4763#(<= |fibo2_#in~n| 1)} is VALID [2020-07-10 14:56:37,753 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 [2020-07-10 14:56:37,754 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 [2020-07-10 14:56:37,754 INFO L263 TraceCheckUtils]: 18: Hoare triple {4758#(<= |fibo1_#in~n| 2)} call #t~ret1 := fibo2(~n - 2); {4610#true} is VALID [2020-07-10 14:56:37,754 INFO L280 TraceCheckUtils]: 19: Hoare triple {4610#true} ~n := #in~n; {4610#true} is VALID [2020-07-10 14:56:37,755 INFO L280 TraceCheckUtils]: 20: Hoare triple {4610#true} assume ~n < 1;#res := 0; {4610#true} is VALID [2020-07-10 14:56:37,755 INFO L280 TraceCheckUtils]: 21: Hoare triple {4610#true} assume true; {4610#true} is VALID [2020-07-10 14:56:37,756 INFO L275 TraceCheckUtils]: 22: Hoare quadruple {4610#true} {4758#(<= |fibo1_#in~n| 2)} #59#return; {4758#(<= |fibo1_#in~n| 2)} is VALID [2020-07-10 14:56:37,757 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 [2020-07-10 14:56:37,758 INFO L280 TraceCheckUtils]: 24: Hoare triple {4758#(<= |fibo1_#in~n| 2)} assume true; {4758#(<= |fibo1_#in~n| 2)} is VALID [2020-07-10 14:56:37,759 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 [2020-07-10 14:56:37,760 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 [2020-07-10 14:56:37,761 INFO L263 TraceCheckUtils]: 27: Hoare triple {4746#(<= |fibo2_#in~n| 3)} call #t~ret3 := fibo1(~n - 2); {4610#true} is VALID [2020-07-10 14:56:37,761 INFO L280 TraceCheckUtils]: 28: Hoare triple {4610#true} ~n := #in~n; {4610#true} is VALID [2020-07-10 14:56:37,761 INFO L280 TraceCheckUtils]: 29: Hoare triple {4610#true} assume !(~n < 1); {4610#true} is VALID [2020-07-10 14:56:37,761 INFO L280 TraceCheckUtils]: 30: Hoare triple {4610#true} assume 1 == ~n;#res := 1; {4610#true} is VALID [2020-07-10 14:56:37,762 INFO L280 TraceCheckUtils]: 31: Hoare triple {4610#true} assume true; {4610#true} is VALID [2020-07-10 14:56:37,763 INFO L275 TraceCheckUtils]: 32: Hoare quadruple {4610#true} {4746#(<= |fibo2_#in~n| 3)} #55#return; {4746#(<= |fibo2_#in~n| 3)} is VALID [2020-07-10 14:56:37,763 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~ret2;havoc #t~ret3; {4746#(<= |fibo2_#in~n| 3)} is VALID [2020-07-10 14:56:37,764 INFO L280 TraceCheckUtils]: 34: Hoare triple {4746#(<= |fibo2_#in~n| 3)} assume true; {4746#(<= |fibo2_#in~n| 3)} is VALID [2020-07-10 14:56:37,766 INFO L275 TraceCheckUtils]: 35: Hoare quadruple {4746#(<= |fibo2_#in~n| 3)} {4610#true} #57#return; {4707#(<= fibo1_~n 4)} is VALID [2020-07-10 14:56:37,766 INFO L280 TraceCheckUtils]: 36: Hoare triple {4707#(<= fibo1_~n 4)} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {4707#(<= fibo1_~n 4)} is VALID [2020-07-10 14:56:37,767 INFO L263 TraceCheckUtils]: 37: Hoare triple {4707#(<= fibo1_~n 4)} call #t~ret1 := fibo2(~n - 2); {4610#true} is VALID [2020-07-10 14:56:37,767 INFO L280 TraceCheckUtils]: 38: Hoare triple {4610#true} ~n := #in~n; {4610#true} is VALID [2020-07-10 14:56:37,767 INFO L280 TraceCheckUtils]: 39: Hoare triple {4610#true} assume !(~n < 1); {4610#true} is VALID [2020-07-10 14:56:37,767 INFO L280 TraceCheckUtils]: 40: Hoare triple {4610#true} assume !(1 == ~n); {4610#true} is VALID [2020-07-10 14:56:37,768 INFO L263 TraceCheckUtils]: 41: Hoare triple {4610#true} call #t~ret2 := fibo1(~n - 1); {4610#true} is VALID [2020-07-10 14:56:37,768 INFO L280 TraceCheckUtils]: 42: Hoare triple {4610#true} ~n := #in~n; {4752#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-10 14:56:37,769 INFO L280 TraceCheckUtils]: 43: Hoare triple {4752#(= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {4752#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-10 14:56:37,770 INFO L280 TraceCheckUtils]: 44: Hoare triple {4752#(= fibo1_~n |fibo1_#in~n|)} assume 1 == ~n;#res := 1; {4775#(<= |fibo1_#in~n| 1)} is VALID [2020-07-10 14:56:37,771 INFO L280 TraceCheckUtils]: 45: Hoare triple {4775#(<= |fibo1_#in~n| 1)} assume true; {4775#(<= |fibo1_#in~n| 1)} is VALID [2020-07-10 14:56:37,772 INFO L275 TraceCheckUtils]: 46: Hoare quadruple {4775#(<= |fibo1_#in~n| 1)} {4610#true} #53#return; {4769#(<= fibo2_~n 2)} is VALID [2020-07-10 14:56:37,773 INFO L280 TraceCheckUtils]: 47: Hoare triple {4769#(<= fibo2_~n 2)} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {4769#(<= fibo2_~n 2)} is VALID [2020-07-10 14:56:37,773 INFO L263 TraceCheckUtils]: 48: Hoare triple {4769#(<= fibo2_~n 2)} call #t~ret3 := fibo1(~n - 2); {4610#true} is VALID [2020-07-10 14:56:37,774 INFO L280 TraceCheckUtils]: 49: Hoare triple {4610#true} ~n := #in~n; {4752#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-10 14:56:37,775 INFO L280 TraceCheckUtils]: 50: Hoare triple {4752#(= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {4776#(<= 1 |fibo1_#in~n|)} is VALID [2020-07-10 14:56:37,776 INFO L280 TraceCheckUtils]: 51: Hoare triple {4776#(<= 1 |fibo1_#in~n|)} assume 1 == ~n;#res := 1; {4776#(<= 1 |fibo1_#in~n|)} is VALID [2020-07-10 14:56:37,777 INFO L280 TraceCheckUtils]: 52: Hoare triple {4776#(<= 1 |fibo1_#in~n|)} assume true; {4776#(<= 1 |fibo1_#in~n|)} is VALID [2020-07-10 14:56:37,778 INFO L275 TraceCheckUtils]: 53: Hoare quadruple {4776#(<= 1 |fibo1_#in~n|)} {4769#(<= fibo2_~n 2)} #55#return; {4611#false} is VALID [2020-07-10 14:56:37,778 INFO L280 TraceCheckUtils]: 54: Hoare triple {4611#false} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647;#res := #t~ret2 + #t~ret3;havoc #t~ret2;havoc #t~ret3; {4611#false} is VALID [2020-07-10 14:56:37,779 INFO L280 TraceCheckUtils]: 55: Hoare triple {4611#false} assume true; {4611#false} is VALID [2020-07-10 14:56:37,779 INFO L275 TraceCheckUtils]: 56: Hoare quadruple {4611#false} {4707#(<= fibo1_~n 4)} #59#return; {4611#false} is VALID [2020-07-10 14:56:37,779 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 [2020-07-10 14:56:37,780 INFO L280 TraceCheckUtils]: 58: Hoare triple {4611#false} assume true; {4611#false} is VALID [2020-07-10 14:56:37,780 INFO L275 TraceCheckUtils]: 59: Hoare quadruple {4611#false} {4614#(<= main_~x~0 4)} #51#return; {4611#false} is VALID [2020-07-10 14:56:37,785 INFO L263 TraceCheckUtils]: 0: Hoare triple {4610#true} call ULTIMATE.init(); {4610#true} is VALID [2020-07-10 14:56:37,785 INFO L280 TraceCheckUtils]: 1: Hoare triple {4610#true} assume true; {4610#true} is VALID [2020-07-10 14:56:37,785 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {4610#true} {4610#true} #47#return; {4610#true} is VALID [2020-07-10 14:56:37,786 INFO L263 TraceCheckUtils]: 3: Hoare triple {4610#true} call #t~ret5 := main(); {4610#true} is VALID [2020-07-10 14:56:37,787 INFO L280 TraceCheckUtils]: 4: Hoare triple {4610#true} ~x~0 := 4; {4614#(<= main_~x~0 4)} is VALID [2020-07-10 14:56:37,787 INFO L263 TraceCheckUtils]: 5: Hoare triple {4614#(<= main_~x~0 4)} call #t~ret4 := fibo1(~x~0); {4610#true} is VALID [2020-07-10 14:56:37,787 INFO L280 TraceCheckUtils]: 6: Hoare triple {4610#true} ~n := #in~n; {4610#true} is VALID [2020-07-10 14:56:37,788 INFO L280 TraceCheckUtils]: 7: Hoare triple {4610#true} assume !(~n < 1); {4610#true} is VALID [2020-07-10 14:56:37,788 INFO L280 TraceCheckUtils]: 8: Hoare triple {4610#true} assume !(1 == ~n); {4610#true} is VALID [2020-07-10 14:56:37,788 INFO L263 TraceCheckUtils]: 9: Hoare triple {4610#true} call #t~ret0 := fibo2(~n - 1); {4610#true} is VALID [2020-07-10 14:56:37,789 INFO L280 TraceCheckUtils]: 10: Hoare triple {4610#true} ~n := #in~n; {4727#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-10 14:56:37,789 INFO L280 TraceCheckUtils]: 11: Hoare triple {4727#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {4727#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-10 14:56:37,790 INFO L280 TraceCheckUtils]: 12: Hoare triple {4727#(= fibo2_~n |fibo2_#in~n|)} assume !(1 == ~n); {4727#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-10 14:56:37,790 INFO L263 TraceCheckUtils]: 13: Hoare triple {4727#(= fibo2_~n |fibo2_#in~n|)} call #t~ret2 := fibo1(~n - 1); {4610#true} is VALID [2020-07-10 14:56:37,791 INFO L280 TraceCheckUtils]: 14: Hoare triple {4610#true} ~n := #in~n; {4752#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-10 14:56:37,791 INFO L280 TraceCheckUtils]: 15: Hoare triple {4752#(= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {4752#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-10 14:56:37,792 INFO L280 TraceCheckUtils]: 16: Hoare triple {4752#(= fibo1_~n |fibo1_#in~n|)} assume !(1 == ~n); {4752#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-10 14:56:37,792 INFO L263 TraceCheckUtils]: 17: Hoare triple {4752#(= fibo1_~n |fibo1_#in~n|)} call #t~ret0 := fibo2(~n - 1); {4610#true} is VALID [2020-07-10 14:56:37,792 INFO L280 TraceCheckUtils]: 18: Hoare triple {4610#true} ~n := #in~n; {4727#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-10 14:56:37,793 INFO L280 TraceCheckUtils]: 19: Hoare triple {4727#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {4727#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-10 14:56:37,794 INFO L280 TraceCheckUtils]: 20: Hoare triple {4727#(= fibo2_~n |fibo2_#in~n|)} assume 1 == ~n;#res := 1; {4763#(<= |fibo2_#in~n| 1)} is VALID [2020-07-10 14:56:37,795 INFO L280 TraceCheckUtils]: 21: Hoare triple {4763#(<= |fibo2_#in~n| 1)} assume true; {4763#(<= |fibo2_#in~n| 1)} is VALID [2020-07-10 14:56:37,797 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 [2020-07-10 14:56:37,797 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 [2020-07-10 14:56:37,798 INFO L263 TraceCheckUtils]: 24: Hoare triple {4758#(<= |fibo1_#in~n| 2)} call #t~ret1 := fibo2(~n - 2); {4610#true} is VALID [2020-07-10 14:56:37,798 INFO L280 TraceCheckUtils]: 25: Hoare triple {4610#true} ~n := #in~n; {4610#true} is VALID [2020-07-10 14:56:37,798 INFO L280 TraceCheckUtils]: 26: Hoare triple {4610#true} assume ~n < 1;#res := 0; {4610#true} is VALID [2020-07-10 14:56:37,799 INFO L280 TraceCheckUtils]: 27: Hoare triple {4610#true} assume true; {4610#true} is VALID [2020-07-10 14:56:37,800 INFO L275 TraceCheckUtils]: 28: Hoare quadruple {4610#true} {4758#(<= |fibo1_#in~n| 2)} #59#return; {4758#(<= |fibo1_#in~n| 2)} is VALID [2020-07-10 14:56:37,801 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 [2020-07-10 14:56:37,801 INFO L280 TraceCheckUtils]: 30: Hoare triple {4758#(<= |fibo1_#in~n| 2)} assume true; {4758#(<= |fibo1_#in~n| 2)} is VALID [2020-07-10 14:56:37,803 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 [2020-07-10 14:56:37,804 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 [2020-07-10 14:56:37,804 INFO L263 TraceCheckUtils]: 33: Hoare triple {4746#(<= |fibo2_#in~n| 3)} call #t~ret3 := fibo1(~n - 2); {4610#true} is VALID [2020-07-10 14:56:37,804 INFO L280 TraceCheckUtils]: 34: Hoare triple {4610#true} ~n := #in~n; {4610#true} is VALID [2020-07-10 14:56:37,805 INFO L280 TraceCheckUtils]: 35: Hoare triple {4610#true} assume !(~n < 1); {4610#true} is VALID [2020-07-10 14:56:37,805 INFO L280 TraceCheckUtils]: 36: Hoare triple {4610#true} assume 1 == ~n;#res := 1; {4610#true} is VALID [2020-07-10 14:56:37,805 INFO L280 TraceCheckUtils]: 37: Hoare triple {4610#true} assume true; {4610#true} is VALID [2020-07-10 14:56:37,807 INFO L275 TraceCheckUtils]: 38: Hoare quadruple {4610#true} {4746#(<= |fibo2_#in~n| 3)} #55#return; {4746#(<= |fibo2_#in~n| 3)} is VALID [2020-07-10 14:56:37,807 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~ret2;havoc #t~ret3; {4746#(<= |fibo2_#in~n| 3)} is VALID [2020-07-10 14:56:37,808 INFO L280 TraceCheckUtils]: 40: Hoare triple {4746#(<= |fibo2_#in~n| 3)} assume true; {4746#(<= |fibo2_#in~n| 3)} is VALID [2020-07-10 14:56:37,809 INFO L275 TraceCheckUtils]: 41: Hoare quadruple {4746#(<= |fibo2_#in~n| 3)} {4610#true} #57#return; {4707#(<= fibo1_~n 4)} is VALID [2020-07-10 14:56:37,810 INFO L280 TraceCheckUtils]: 42: Hoare triple {4707#(<= fibo1_~n 4)} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {4707#(<= fibo1_~n 4)} is VALID [2020-07-10 14:56:37,810 INFO L263 TraceCheckUtils]: 43: Hoare triple {4707#(<= fibo1_~n 4)} call #t~ret1 := fibo2(~n - 2); {4610#true} is VALID [2020-07-10 14:56:37,810 INFO L280 TraceCheckUtils]: 44: Hoare triple {4610#true} ~n := #in~n; {4610#true} is VALID [2020-07-10 14:56:37,811 INFO L280 TraceCheckUtils]: 45: Hoare triple {4610#true} assume !(~n < 1); {4610#true} is VALID [2020-07-10 14:56:37,811 INFO L280 TraceCheckUtils]: 46: Hoare triple {4610#true} assume !(1 == ~n); {4610#true} is VALID [2020-07-10 14:56:37,811 INFO L263 TraceCheckUtils]: 47: Hoare triple {4610#true} call #t~ret2 := fibo1(~n - 1); {4610#true} is VALID [2020-07-10 14:56:37,812 INFO L280 TraceCheckUtils]: 48: Hoare triple {4610#true} ~n := #in~n; {4752#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-10 14:56:37,813 INFO L280 TraceCheckUtils]: 49: Hoare triple {4752#(= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {4752#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-10 14:56:37,813 INFO L280 TraceCheckUtils]: 50: Hoare triple {4752#(= fibo1_~n |fibo1_#in~n|)} assume 1 == ~n;#res := 1; {4775#(<= |fibo1_#in~n| 1)} is VALID [2020-07-10 14:56:37,814 INFO L280 TraceCheckUtils]: 51: Hoare triple {4775#(<= |fibo1_#in~n| 1)} assume true; {4775#(<= |fibo1_#in~n| 1)} is VALID [2020-07-10 14:56:37,816 INFO L275 TraceCheckUtils]: 52: Hoare quadruple {4775#(<= |fibo1_#in~n| 1)} {4610#true} #53#return; {4769#(<= fibo2_~n 2)} is VALID [2020-07-10 14:56:37,816 INFO L280 TraceCheckUtils]: 53: Hoare triple {4769#(<= fibo2_~n 2)} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {4769#(<= fibo2_~n 2)} is VALID [2020-07-10 14:56:37,817 INFO L263 TraceCheckUtils]: 54: Hoare triple {4769#(<= fibo2_~n 2)} call #t~ret3 := fibo1(~n - 2); {4610#true} is VALID [2020-07-10 14:56:37,817 INFO L280 TraceCheckUtils]: 55: Hoare triple {4610#true} ~n := #in~n; {4752#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-10 14:56:37,818 INFO L280 TraceCheckUtils]: 56: Hoare triple {4752#(= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {4776#(<= 1 |fibo1_#in~n|)} is VALID [2020-07-10 14:56:37,819 INFO L280 TraceCheckUtils]: 57: Hoare triple {4776#(<= 1 |fibo1_#in~n|)} assume 1 == ~n;#res := 1; {4776#(<= 1 |fibo1_#in~n|)} is VALID [2020-07-10 14:56:37,820 INFO L280 TraceCheckUtils]: 58: Hoare triple {4776#(<= 1 |fibo1_#in~n|)} assume true; {4776#(<= 1 |fibo1_#in~n|)} is VALID [2020-07-10 14:56:37,821 INFO L275 TraceCheckUtils]: 59: Hoare quadruple {4776#(<= 1 |fibo1_#in~n|)} {4769#(<= fibo2_~n 2)} #55#return; {4611#false} is VALID [2020-07-10 14:56:37,821 INFO L280 TraceCheckUtils]: 60: Hoare triple {4611#false} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647;#res := #t~ret2 + #t~ret3;havoc #t~ret2;havoc #t~ret3; {4611#false} is VALID [2020-07-10 14:56:37,822 INFO L280 TraceCheckUtils]: 61: Hoare triple {4611#false} assume true; {4611#false} is VALID [2020-07-10 14:56:37,822 INFO L275 TraceCheckUtils]: 62: Hoare quadruple {4611#false} {4707#(<= fibo1_~n 4)} #59#return; {4611#false} is VALID [2020-07-10 14:56:37,822 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 [2020-07-10 14:56:37,823 INFO L280 TraceCheckUtils]: 64: Hoare triple {4611#false} assume true; {4611#false} is VALID [2020-07-10 14:56:37,823 INFO L275 TraceCheckUtils]: 65: Hoare quadruple {4611#false} {4614#(<= main_~x~0 4)} #51#return; {4611#false} is VALID [2020-07-10 14:56:37,823 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 [2020-07-10 14:56:37,824 INFO L280 TraceCheckUtils]: 67: Hoare triple {4611#false} assume 3 != ~result~0; {4611#false} is VALID [2020-07-10 14:56:37,824 INFO L280 TraceCheckUtils]: 68: Hoare triple {4611#false} assume !false; {4611#false} is VALID [2020-07-10 14:56:37,830 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 35 proven. 25 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-07-10 14:56:37,830 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335836868] [2020-07-10 14:56:37,831 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1054861878] [2020-07-10 14:56:37,831 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 [2020-07-10 14:56:37,874 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-07-10 14:56:37,874 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-10 14:56:37,875 INFO L264 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-10 14:56:37,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:56:37,891 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-10 14:56:38,085 INFO L263 TraceCheckUtils]: 0: Hoare triple {4610#true} call ULTIMATE.init(); {4610#true} is VALID [2020-07-10 14:56:38,086 INFO L280 TraceCheckUtils]: 1: Hoare triple {4610#true} assume true; {4610#true} is VALID [2020-07-10 14:56:38,086 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {4610#true} {4610#true} #47#return; {4610#true} is VALID [2020-07-10 14:56:38,086 INFO L263 TraceCheckUtils]: 3: Hoare triple {4610#true} call #t~ret5 := main(); {4610#true} is VALID [2020-07-10 14:56:38,087 INFO L280 TraceCheckUtils]: 4: Hoare triple {4610#true} ~x~0 := 4; {4614#(<= main_~x~0 4)} is VALID [2020-07-10 14:56:38,087 INFO L263 TraceCheckUtils]: 5: Hoare triple {4614#(<= main_~x~0 4)} call #t~ret4 := fibo1(~x~0); {4610#true} is VALID [2020-07-10 14:56:38,087 INFO L280 TraceCheckUtils]: 6: Hoare triple {4610#true} ~n := #in~n; {4798#(<= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-10 14:56:38,088 INFO L280 TraceCheckUtils]: 7: Hoare triple {4798#(<= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {4798#(<= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-10 14:56:38,088 INFO L280 TraceCheckUtils]: 8: Hoare triple {4798#(<= fibo1_~n |fibo1_#in~n|)} assume !(1 == ~n); {4798#(<= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-10 14:56:38,089 INFO L263 TraceCheckUtils]: 9: Hoare triple {4798#(<= fibo1_~n |fibo1_#in~n|)} call #t~ret0 := fibo2(~n - 1); {4610#true} is VALID [2020-07-10 14:56:38,089 INFO L280 TraceCheckUtils]: 10: Hoare triple {4610#true} ~n := #in~n; {4610#true} is VALID [2020-07-10 14:56:38,089 INFO L280 TraceCheckUtils]: 11: Hoare triple {4610#true} assume !(~n < 1); {4610#true} is VALID [2020-07-10 14:56:38,089 INFO L280 TraceCheckUtils]: 12: Hoare triple {4610#true} assume !(1 == ~n); {4610#true} is VALID [2020-07-10 14:56:38,089 INFO L263 TraceCheckUtils]: 13: Hoare triple {4610#true} call #t~ret2 := fibo1(~n - 1); {4610#true} is VALID [2020-07-10 14:56:38,089 INFO L280 TraceCheckUtils]: 14: Hoare triple {4610#true} ~n := #in~n; {4610#true} is VALID [2020-07-10 14:56:38,090 INFO L280 TraceCheckUtils]: 15: Hoare triple {4610#true} assume !(~n < 1); {4610#true} is VALID [2020-07-10 14:56:38,090 INFO L280 TraceCheckUtils]: 16: Hoare triple {4610#true} assume !(1 == ~n); {4610#true} is VALID [2020-07-10 14:56:38,090 INFO L263 TraceCheckUtils]: 17: Hoare triple {4610#true} call #t~ret0 := fibo2(~n - 1); {4610#true} is VALID [2020-07-10 14:56:38,090 INFO L280 TraceCheckUtils]: 18: Hoare triple {4610#true} ~n := #in~n; {4610#true} is VALID [2020-07-10 14:56:38,090 INFO L280 TraceCheckUtils]: 19: Hoare triple {4610#true} assume !(~n < 1); {4610#true} is VALID [2020-07-10 14:56:38,091 INFO L280 TraceCheckUtils]: 20: Hoare triple {4610#true} assume 1 == ~n;#res := 1; {4610#true} is VALID [2020-07-10 14:56:38,091 INFO L280 TraceCheckUtils]: 21: Hoare triple {4610#true} assume true; {4610#true} is VALID [2020-07-10 14:56:38,091 INFO L275 TraceCheckUtils]: 22: Hoare quadruple {4610#true} {4610#true} #57#return; {4610#true} is VALID [2020-07-10 14:56:38,091 INFO L280 TraceCheckUtils]: 23: Hoare triple {4610#true} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {4610#true} is VALID [2020-07-10 14:56:38,091 INFO L263 TraceCheckUtils]: 24: Hoare triple {4610#true} call #t~ret1 := fibo2(~n - 2); {4610#true} is VALID [2020-07-10 14:56:38,091 INFO L280 TraceCheckUtils]: 25: Hoare triple {4610#true} ~n := #in~n; {4610#true} is VALID [2020-07-10 14:56:38,092 INFO L280 TraceCheckUtils]: 26: Hoare triple {4610#true} assume ~n < 1;#res := 0; {4610#true} is VALID [2020-07-10 14:56:38,092 INFO L280 TraceCheckUtils]: 27: Hoare triple {4610#true} assume true; {4610#true} is VALID [2020-07-10 14:56:38,092 INFO L275 TraceCheckUtils]: 28: Hoare quadruple {4610#true} {4610#true} #59#return; {4610#true} is VALID [2020-07-10 14:56:38,092 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 [2020-07-10 14:56:38,092 INFO L280 TraceCheckUtils]: 30: Hoare triple {4610#true} assume true; {4610#true} is VALID [2020-07-10 14:56:38,093 INFO L275 TraceCheckUtils]: 31: Hoare quadruple {4610#true} {4610#true} #53#return; {4610#true} is VALID [2020-07-10 14:56:38,093 INFO L280 TraceCheckUtils]: 32: Hoare triple {4610#true} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {4610#true} is VALID [2020-07-10 14:56:38,093 INFO L263 TraceCheckUtils]: 33: Hoare triple {4610#true} call #t~ret3 := fibo1(~n - 2); {4610#true} is VALID [2020-07-10 14:56:38,093 INFO L280 TraceCheckUtils]: 34: Hoare triple {4610#true} ~n := #in~n; {4610#true} is VALID [2020-07-10 14:56:38,093 INFO L280 TraceCheckUtils]: 35: Hoare triple {4610#true} assume !(~n < 1); {4610#true} is VALID [2020-07-10 14:56:38,094 INFO L280 TraceCheckUtils]: 36: Hoare triple {4610#true} assume 1 == ~n;#res := 1; {4610#true} is VALID [2020-07-10 14:56:38,094 INFO L280 TraceCheckUtils]: 37: Hoare triple {4610#true} assume true; {4610#true} is VALID [2020-07-10 14:56:38,094 INFO L275 TraceCheckUtils]: 38: Hoare quadruple {4610#true} {4610#true} #55#return; {4610#true} is VALID [2020-07-10 14:56:38,094 INFO L280 TraceCheckUtils]: 39: Hoare triple {4610#true} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647;#res := #t~ret2 + #t~ret3;havoc #t~ret2;havoc #t~ret3; {4610#true} is VALID [2020-07-10 14:56:38,094 INFO L280 TraceCheckUtils]: 40: Hoare triple {4610#true} assume true; {4610#true} is VALID [2020-07-10 14:56:38,096 INFO L275 TraceCheckUtils]: 41: Hoare quadruple {4610#true} {4798#(<= fibo1_~n |fibo1_#in~n|)} #57#return; {4798#(<= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-10 14:56:38,101 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 [2020-07-10 14:56:38,102 INFO L263 TraceCheckUtils]: 43: Hoare triple {4798#(<= fibo1_~n |fibo1_#in~n|)} call #t~ret1 := fibo2(~n - 2); {4610#true} is VALID [2020-07-10 14:56:38,102 INFO L280 TraceCheckUtils]: 44: Hoare triple {4610#true} ~n := #in~n; {4913#(<= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-10 14:56:38,103 INFO L280 TraceCheckUtils]: 45: Hoare triple {4913#(<= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {4913#(<= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-10 14:56:38,104 INFO L280 TraceCheckUtils]: 46: Hoare triple {4913#(<= fibo2_~n |fibo2_#in~n|)} assume !(1 == ~n); {4913#(<= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-10 14:56:38,104 INFO L263 TraceCheckUtils]: 47: Hoare triple {4913#(<= fibo2_~n |fibo2_#in~n|)} call #t~ret2 := fibo1(~n - 1); {4610#true} is VALID [2020-07-10 14:56:38,104 INFO L280 TraceCheckUtils]: 48: Hoare triple {4610#true} ~n := #in~n; {4610#true} is VALID [2020-07-10 14:56:38,104 INFO L280 TraceCheckUtils]: 49: Hoare triple {4610#true} assume !(~n < 1); {4610#true} is VALID [2020-07-10 14:56:38,104 INFO L280 TraceCheckUtils]: 50: Hoare triple {4610#true} assume 1 == ~n;#res := 1; {4610#true} is VALID [2020-07-10 14:56:38,105 INFO L280 TraceCheckUtils]: 51: Hoare triple {4610#true} assume true; {4610#true} is VALID [2020-07-10 14:56:38,106 INFO L275 TraceCheckUtils]: 52: Hoare quadruple {4610#true} {4913#(<= fibo2_~n |fibo2_#in~n|)} #53#return; {4913#(<= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-10 14:56:38,107 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 [2020-07-10 14:56:38,107 INFO L263 TraceCheckUtils]: 54: Hoare triple {4913#(<= fibo2_~n |fibo2_#in~n|)} call #t~ret3 := fibo1(~n - 2); {4610#true} is VALID [2020-07-10 14:56:38,108 INFO L280 TraceCheckUtils]: 55: Hoare triple {4610#true} ~n := #in~n; {4798#(<= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-10 14:56:38,109 INFO L280 TraceCheckUtils]: 56: Hoare triple {4798#(<= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {4776#(<= 1 |fibo1_#in~n|)} is VALID [2020-07-10 14:56:38,109 INFO L280 TraceCheckUtils]: 57: Hoare triple {4776#(<= 1 |fibo1_#in~n|)} assume 1 == ~n;#res := 1; {4776#(<= 1 |fibo1_#in~n|)} is VALID [2020-07-10 14:56:38,110 INFO L280 TraceCheckUtils]: 58: Hoare triple {4776#(<= 1 |fibo1_#in~n|)} assume true; {4776#(<= 1 |fibo1_#in~n|)} is VALID [2020-07-10 14:56:38,111 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 [2020-07-10 14:56:38,112 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~ret2;havoc #t~ret3; {4959#(<= 3 |fibo2_#in~n|)} is VALID [2020-07-10 14:56:38,112 INFO L280 TraceCheckUtils]: 61: Hoare triple {4959#(<= 3 |fibo2_#in~n|)} assume true; {4959#(<= 3 |fibo2_#in~n|)} is VALID [2020-07-10 14:56:38,113 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 [2020-07-10 14:56:38,114 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 [2020-07-10 14:56:38,114 INFO L280 TraceCheckUtils]: 64: Hoare triple {4969#(<= 5 |fibo1_#in~n|)} assume true; {4969#(<= 5 |fibo1_#in~n|)} is VALID [2020-07-10 14:56:38,115 INFO L275 TraceCheckUtils]: 65: Hoare quadruple {4969#(<= 5 |fibo1_#in~n|)} {4614#(<= main_~x~0 4)} #51#return; {4611#false} is VALID [2020-07-10 14:56:38,116 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 [2020-07-10 14:56:38,116 INFO L280 TraceCheckUtils]: 67: Hoare triple {4611#false} assume 3 != ~result~0; {4611#false} is VALID [2020-07-10 14:56:38,116 INFO L280 TraceCheckUtils]: 68: Hoare triple {4611#false} assume !false; {4611#false} is VALID [2020-07-10 14:56:38,120 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 38 proven. 8 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2020-07-10 14:56:38,120 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-10 14:56:38,120 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8] total 16 [2020-07-10 14:56:38,123 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873256265] [2020-07-10 14:56:38,124 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 69 [2020-07-10 14:56:38,126 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 14:56:38,126 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 16 states. [2020-07-10 14:56:38,222 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 94 edges. 94 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 14:56:38,222 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-07-10 14:56:38,222 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-10 14:56:38,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-07-10 14:56:38,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2020-07-10 14:56:38,223 INFO L87 Difference]: Start difference. First operand 83 states and 126 transitions. Second operand 16 states. [2020-07-10 14:56:39,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 14:56:39,923 INFO L93 Difference]: Finished difference Result 174 states and 293 transitions. [2020-07-10 14:56:39,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-07-10 14:56:39,923 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 69 [2020-07-10 14:56:39,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 14:56:39,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-07-10 14:56:39,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 147 transitions. [2020-07-10 14:56:39,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-07-10 14:56:39,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 147 transitions. [2020-07-10 14:56:39,932 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 22 states and 147 transitions. [2020-07-10 14:56:40,127 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 147 edges. 147 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 14:56:40,134 INFO L225 Difference]: With dead ends: 174 [2020-07-10 14:56:40,134 INFO L226 Difference]: Without dead ends: 89 [2020-07-10 14:56:40,136 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=124, Invalid=632, Unknown=0, NotChecked=0, Total=756 [2020-07-10 14:56:40,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2020-07-10 14:56:40,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 80. [2020-07-10 14:56:40,179 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 14:56:40,179 INFO L82 GeneralOperation]: Start isEquivalent. First operand 89 states. Second operand 80 states. [2020-07-10 14:56:40,179 INFO L74 IsIncluded]: Start isIncluded. First operand 89 states. Second operand 80 states. [2020-07-10 14:56:40,179 INFO L87 Difference]: Start difference. First operand 89 states. Second operand 80 states. [2020-07-10 14:56:40,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 14:56:40,184 INFO L93 Difference]: Finished difference Result 89 states and 121 transitions. [2020-07-10 14:56:40,184 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 121 transitions. [2020-07-10 14:56:40,185 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 14:56:40,185 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 14:56:40,185 INFO L74 IsIncluded]: Start isIncluded. First operand 80 states. Second operand 89 states. [2020-07-10 14:56:40,185 INFO L87 Difference]: Start difference. First operand 80 states. Second operand 89 states. [2020-07-10 14:56:40,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 14:56:40,189 INFO L93 Difference]: Finished difference Result 89 states and 121 transitions. [2020-07-10 14:56:40,189 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 121 transitions. [2020-07-10 14:56:40,189 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 14:56:40,190 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 14:56:40,190 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 14:56:40,190 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 14:56:40,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-07-10 14:56:40,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 107 transitions. [2020-07-10 14:56:40,193 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 107 transitions. Word has length 69 [2020-07-10 14:56:40,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 14:56:40,194 INFO L479 AbstractCegarLoop]: Abstraction has 80 states and 107 transitions. [2020-07-10 14:56:40,194 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-07-10 14:56:40,194 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 107 transitions. [2020-07-10 14:56:40,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-07-10 14:56:40,195 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 14:56:40,195 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] [2020-07-10 14:56:40,409 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-10 14:56:40,410 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 14:56:40,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 14:56:40,410 INFO L82 PathProgramCache]: Analyzing trace with hash -1156896337, now seen corresponding path program 1 times [2020-07-10 14:56:40,410 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-10 14:56:40,411 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572680424] [2020-07-10 14:56:40,411 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 14:56:40,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:56:40,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:56:40,473 INFO L280 TraceCheckUtils]: 0: Hoare triple {5520#true} assume true; {5520#true} is VALID [2020-07-10 14:56:40,474 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {5520#true} {5520#true} #47#return; {5520#true} is VALID [2020-07-10 14:56:40,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:56:40,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:56:40,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:56:40,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:56:40,722 INFO L280 TraceCheckUtils]: 0: Hoare triple {5520#true} ~n := #in~n; {5520#true} is VALID [2020-07-10 14:56:40,722 INFO L280 TraceCheckUtils]: 1: Hoare triple {5520#true} assume !(~n < 1); {5520#true} is VALID [2020-07-10 14:56:40,723 INFO L280 TraceCheckUtils]: 2: Hoare triple {5520#true} assume 1 == ~n;#res := 1; {5676#(and (<= 1 |fibo2_#res|) (<= |fibo2_#res| 1))} is VALID [2020-07-10 14:56:40,723 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 [2020-07-10 14:56:40,724 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 [2020-07-10 14:56:40,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:56:40,753 INFO L280 TraceCheckUtils]: 0: Hoare triple {5520#true} ~n := #in~n; {5520#true} is VALID [2020-07-10 14:56:40,754 INFO L280 TraceCheckUtils]: 1: Hoare triple {5520#true} assume ~n < 1;#res := 0; {5677#(and (<= |fibo2_#res| 0) (<= 0 |fibo2_#res|))} is VALID [2020-07-10 14:56:40,755 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 [2020-07-10 14:56:40,756 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 [2020-07-10 14:56:40,756 INFO L280 TraceCheckUtils]: 0: Hoare triple {5520#true} ~n := #in~n; {5520#true} is VALID [2020-07-10 14:56:40,757 INFO L280 TraceCheckUtils]: 1: Hoare triple {5520#true} assume !(~n < 1); {5520#true} is VALID [2020-07-10 14:56:40,757 INFO L280 TraceCheckUtils]: 2: Hoare triple {5520#true} assume !(1 == ~n); {5520#true} is VALID [2020-07-10 14:56:40,757 INFO L263 TraceCheckUtils]: 3: Hoare triple {5520#true} call #t~ret0 := fibo2(~n - 1); {5520#true} is VALID [2020-07-10 14:56:40,757 INFO L280 TraceCheckUtils]: 4: Hoare triple {5520#true} ~n := #in~n; {5520#true} is VALID [2020-07-10 14:56:40,757 INFO L280 TraceCheckUtils]: 5: Hoare triple {5520#true} assume !(~n < 1); {5520#true} is VALID [2020-07-10 14:56:40,758 INFO L280 TraceCheckUtils]: 6: Hoare triple {5520#true} assume 1 == ~n;#res := 1; {5676#(and (<= 1 |fibo2_#res|) (<= |fibo2_#res| 1))} is VALID [2020-07-10 14:56:40,759 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 [2020-07-10 14:56:40,760 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 [2020-07-10 14:56:40,760 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 [2020-07-10 14:56:40,761 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 [2020-07-10 14:56:40,761 INFO L280 TraceCheckUtils]: 11: Hoare triple {5520#true} ~n := #in~n; {5520#true} is VALID [2020-07-10 14:56:40,762 INFO L280 TraceCheckUtils]: 12: Hoare triple {5520#true} assume ~n < 1;#res := 0; {5677#(and (<= |fibo2_#res| 0) (<= 0 |fibo2_#res|))} is VALID [2020-07-10 14:56:40,762 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 [2020-07-10 14:56:40,763 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 [2020-07-10 14:56:40,764 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 [2020-07-10 14:56:40,765 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 [2020-07-10 14:56:40,766 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 [2020-07-10 14:56:40,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:56:40,775 INFO L280 TraceCheckUtils]: 0: Hoare triple {5520#true} ~n := #in~n; {5520#true} is VALID [2020-07-10 14:56:40,775 INFO L280 TraceCheckUtils]: 1: Hoare triple {5520#true} assume !(~n < 1); {5520#true} is VALID [2020-07-10 14:56:40,776 INFO L280 TraceCheckUtils]: 2: Hoare triple {5520#true} assume 1 == ~n;#res := 1; {5675#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} is VALID [2020-07-10 14:56:40,776 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 [2020-07-10 14:56:40,778 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 [2020-07-10 14:56:40,778 INFO L280 TraceCheckUtils]: 0: Hoare triple {5520#true} ~n := #in~n; {5520#true} is VALID [2020-07-10 14:56:40,778 INFO L280 TraceCheckUtils]: 1: Hoare triple {5520#true} assume !(~n < 1); {5520#true} is VALID [2020-07-10 14:56:40,778 INFO L280 TraceCheckUtils]: 2: Hoare triple {5520#true} assume !(1 == ~n); {5520#true} is VALID [2020-07-10 14:56:40,779 INFO L263 TraceCheckUtils]: 3: Hoare triple {5520#true} call #t~ret2 := fibo1(~n - 1); {5520#true} is VALID [2020-07-10 14:56:40,779 INFO L280 TraceCheckUtils]: 4: Hoare triple {5520#true} ~n := #in~n; {5520#true} is VALID [2020-07-10 14:56:40,779 INFO L280 TraceCheckUtils]: 5: Hoare triple {5520#true} assume !(~n < 1); {5520#true} is VALID [2020-07-10 14:56:40,779 INFO L280 TraceCheckUtils]: 6: Hoare triple {5520#true} assume !(1 == ~n); {5520#true} is VALID [2020-07-10 14:56:40,779 INFO L263 TraceCheckUtils]: 7: Hoare triple {5520#true} call #t~ret0 := fibo2(~n - 1); {5520#true} is VALID [2020-07-10 14:56:40,779 INFO L280 TraceCheckUtils]: 8: Hoare triple {5520#true} ~n := #in~n; {5520#true} is VALID [2020-07-10 14:56:40,780 INFO L280 TraceCheckUtils]: 9: Hoare triple {5520#true} assume !(~n < 1); {5520#true} is VALID [2020-07-10 14:56:40,780 INFO L280 TraceCheckUtils]: 10: Hoare triple {5520#true} assume 1 == ~n;#res := 1; {5676#(and (<= 1 |fibo2_#res|) (<= |fibo2_#res| 1))} is VALID [2020-07-10 14:56:40,781 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 [2020-07-10 14:56:40,782 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 [2020-07-10 14:56:40,783 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 [2020-07-10 14:56:40,783 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 [2020-07-10 14:56:40,783 INFO L280 TraceCheckUtils]: 15: Hoare triple {5520#true} ~n := #in~n; {5520#true} is VALID [2020-07-10 14:56:40,784 INFO L280 TraceCheckUtils]: 16: Hoare triple {5520#true} assume ~n < 1;#res := 0; {5677#(and (<= |fibo2_#res| 0) (<= 0 |fibo2_#res|))} is VALID [2020-07-10 14:56:40,784 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 [2020-07-10 14:56:40,785 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 [2020-07-10 14:56:40,786 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 [2020-07-10 14:56:40,787 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 [2020-07-10 14:56:40,788 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 [2020-07-10 14:56:40,789 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 [2020-07-10 14:56:40,789 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 [2020-07-10 14:56:40,789 INFO L280 TraceCheckUtils]: 24: Hoare triple {5520#true} ~n := #in~n; {5520#true} is VALID [2020-07-10 14:56:40,789 INFO L280 TraceCheckUtils]: 25: Hoare triple {5520#true} assume !(~n < 1); {5520#true} is VALID [2020-07-10 14:56:40,790 INFO L280 TraceCheckUtils]: 26: Hoare triple {5520#true} assume 1 == ~n;#res := 1; {5675#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} is VALID [2020-07-10 14:56:40,790 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 [2020-07-10 14:56:40,792 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 [2020-07-10 14:56:40,793 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~ret2;havoc #t~ret3; {5663#(and (<= |fibo2_#res| 2) (<= 2 |fibo2_#res|))} is VALID [2020-07-10 14:56:40,793 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 [2020-07-10 14:56:40,794 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 [2020-07-10 14:56:40,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:56:40,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:56:40,846 INFO L280 TraceCheckUtils]: 0: Hoare triple {5520#true} ~n := #in~n; {5520#true} is VALID [2020-07-10 14:56:40,846 INFO L280 TraceCheckUtils]: 1: Hoare triple {5520#true} assume !(~n < 1); {5520#true} is VALID [2020-07-10 14:56:40,847 INFO L280 TraceCheckUtils]: 2: Hoare triple {5520#true} assume 1 == ~n;#res := 1; {5675#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} is VALID [2020-07-10 14:56:40,848 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 [2020-07-10 14:56:40,849 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 [2020-07-10 14:56:40,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:56:40,879 INFO L280 TraceCheckUtils]: 0: Hoare triple {5520#true} ~n := #in~n; {5520#true} is VALID [2020-07-10 14:56:40,880 INFO L280 TraceCheckUtils]: 1: Hoare triple {5520#true} assume ~n < 1;#res := 0; {5688#(and (<= |fibo1_#res| 0) (<= 0 |fibo1_#res|))} is VALID [2020-07-10 14:56:40,881 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 [2020-07-10 14:56:40,883 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 [2020-07-10 14:56:40,883 INFO L280 TraceCheckUtils]: 0: Hoare triple {5520#true} ~n := #in~n; {5520#true} is VALID [2020-07-10 14:56:40,883 INFO L280 TraceCheckUtils]: 1: Hoare triple {5520#true} assume !(~n < 1); {5520#true} is VALID [2020-07-10 14:56:40,883 INFO L280 TraceCheckUtils]: 2: Hoare triple {5520#true} assume !(1 == ~n); {5520#true} is VALID [2020-07-10 14:56:40,883 INFO L263 TraceCheckUtils]: 3: Hoare triple {5520#true} call #t~ret2 := fibo1(~n - 1); {5520#true} is VALID [2020-07-10 14:56:40,884 INFO L280 TraceCheckUtils]: 4: Hoare triple {5520#true} ~n := #in~n; {5520#true} is VALID [2020-07-10 14:56:40,884 INFO L280 TraceCheckUtils]: 5: Hoare triple {5520#true} assume !(~n < 1); {5520#true} is VALID [2020-07-10 14:56:40,885 INFO L280 TraceCheckUtils]: 6: Hoare triple {5520#true} assume 1 == ~n;#res := 1; {5675#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} is VALID [2020-07-10 14:56:40,885 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 [2020-07-10 14:56:40,886 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 [2020-07-10 14:56:40,887 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 [2020-07-10 14:56:40,887 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 [2020-07-10 14:56:40,887 INFO L280 TraceCheckUtils]: 11: Hoare triple {5520#true} ~n := #in~n; {5520#true} is VALID [2020-07-10 14:56:40,888 INFO L280 TraceCheckUtils]: 12: Hoare triple {5520#true} assume ~n < 1;#res := 0; {5688#(and (<= |fibo1_#res| 0) (<= 0 |fibo1_#res|))} is VALID [2020-07-10 14:56:40,889 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 [2020-07-10 14:56:40,890 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 [2020-07-10 14:56:40,891 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~ret2;havoc #t~ret3; {5676#(and (<= 1 |fibo2_#res|) (<= |fibo2_#res| 1))} is VALID [2020-07-10 14:56:40,892 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 [2020-07-10 14:56:40,893 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 [2020-07-10 14:56:40,894 INFO L280 TraceCheckUtils]: 0: Hoare triple {5520#true} ~n := #in~n; {5520#true} is VALID [2020-07-10 14:56:40,894 INFO L280 TraceCheckUtils]: 1: Hoare triple {5520#true} assume !(~n < 1); {5520#true} is VALID [2020-07-10 14:56:40,894 INFO L280 TraceCheckUtils]: 2: Hoare triple {5520#true} assume !(1 == ~n); {5520#true} is VALID [2020-07-10 14:56:40,894 INFO L263 TraceCheckUtils]: 3: Hoare triple {5520#true} call #t~ret0 := fibo2(~n - 1); {5520#true} is VALID [2020-07-10 14:56:40,895 INFO L280 TraceCheckUtils]: 4: Hoare triple {5520#true} ~n := #in~n; {5520#true} is VALID [2020-07-10 14:56:40,895 INFO L280 TraceCheckUtils]: 5: Hoare triple {5520#true} assume !(~n < 1); {5520#true} is VALID [2020-07-10 14:56:40,895 INFO L280 TraceCheckUtils]: 6: Hoare triple {5520#true} assume !(1 == ~n); {5520#true} is VALID [2020-07-10 14:56:40,895 INFO L263 TraceCheckUtils]: 7: Hoare triple {5520#true} call #t~ret2 := fibo1(~n - 1); {5520#true} is VALID [2020-07-10 14:56:40,895 INFO L280 TraceCheckUtils]: 8: Hoare triple {5520#true} ~n := #in~n; {5520#true} is VALID [2020-07-10 14:56:40,896 INFO L280 TraceCheckUtils]: 9: Hoare triple {5520#true} assume !(~n < 1); {5520#true} is VALID [2020-07-10 14:56:40,896 INFO L280 TraceCheckUtils]: 10: Hoare triple {5520#true} assume !(1 == ~n); {5520#true} is VALID [2020-07-10 14:56:40,896 INFO L263 TraceCheckUtils]: 11: Hoare triple {5520#true} call #t~ret0 := fibo2(~n - 1); {5520#true} is VALID [2020-07-10 14:56:40,896 INFO L280 TraceCheckUtils]: 12: Hoare triple {5520#true} ~n := #in~n; {5520#true} is VALID [2020-07-10 14:56:40,896 INFO L280 TraceCheckUtils]: 13: Hoare triple {5520#true} assume !(~n < 1); {5520#true} is VALID [2020-07-10 14:56:40,897 INFO L280 TraceCheckUtils]: 14: Hoare triple {5520#true} assume 1 == ~n;#res := 1; {5676#(and (<= 1 |fibo2_#res|) (<= |fibo2_#res| 1))} is VALID [2020-07-10 14:56:40,898 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 [2020-07-10 14:56:40,899 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 [2020-07-10 14:56:40,899 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 [2020-07-10 14:56:40,900 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 [2020-07-10 14:56:40,900 INFO L280 TraceCheckUtils]: 19: Hoare triple {5520#true} ~n := #in~n; {5520#true} is VALID [2020-07-10 14:56:40,900 INFO L280 TraceCheckUtils]: 20: Hoare triple {5520#true} assume ~n < 1;#res := 0; {5677#(and (<= |fibo2_#res| 0) (<= 0 |fibo2_#res|))} is VALID [2020-07-10 14:56:40,901 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 [2020-07-10 14:56:40,902 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 [2020-07-10 14:56:40,904 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 [2020-07-10 14:56:40,904 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 [2020-07-10 14:56:40,905 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 [2020-07-10 14:56:40,906 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 [2020-07-10 14:56:40,906 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 [2020-07-10 14:56:40,906 INFO L280 TraceCheckUtils]: 28: Hoare triple {5520#true} ~n := #in~n; {5520#true} is VALID [2020-07-10 14:56:40,906 INFO L280 TraceCheckUtils]: 29: Hoare triple {5520#true} assume !(~n < 1); {5520#true} is VALID [2020-07-10 14:56:40,907 INFO L280 TraceCheckUtils]: 30: Hoare triple {5520#true} assume 1 == ~n;#res := 1; {5675#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} is VALID [2020-07-10 14:56:40,908 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 [2020-07-10 14:56:40,909 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 [2020-07-10 14:56:40,910 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~ret2;havoc #t~ret3; {5663#(and (<= |fibo2_#res| 2) (<= 2 |fibo2_#res|))} is VALID [2020-07-10 14:56:40,911 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 [2020-07-10 14:56:40,912 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 [2020-07-10 14:56:40,912 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 [2020-07-10 14:56:40,913 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 [2020-07-10 14:56:40,913 INFO L280 TraceCheckUtils]: 38: Hoare triple {5520#true} ~n := #in~n; {5520#true} is VALID [2020-07-10 14:56:40,913 INFO L280 TraceCheckUtils]: 39: Hoare triple {5520#true} assume !(~n < 1); {5520#true} is VALID [2020-07-10 14:56:40,913 INFO L280 TraceCheckUtils]: 40: Hoare triple {5520#true} assume !(1 == ~n); {5520#true} is VALID [2020-07-10 14:56:40,913 INFO L263 TraceCheckUtils]: 41: Hoare triple {5520#true} call #t~ret2 := fibo1(~n - 1); {5520#true} is VALID [2020-07-10 14:56:40,914 INFO L280 TraceCheckUtils]: 42: Hoare triple {5520#true} ~n := #in~n; {5520#true} is VALID [2020-07-10 14:56:40,914 INFO L280 TraceCheckUtils]: 43: Hoare triple {5520#true} assume !(~n < 1); {5520#true} is VALID [2020-07-10 14:56:40,914 INFO L280 TraceCheckUtils]: 44: Hoare triple {5520#true} assume 1 == ~n;#res := 1; {5675#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} is VALID [2020-07-10 14:56:40,915 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 [2020-07-10 14:56:40,916 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 [2020-07-10 14:56:40,917 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 [2020-07-10 14:56:40,917 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 [2020-07-10 14:56:40,917 INFO L280 TraceCheckUtils]: 49: Hoare triple {5520#true} ~n := #in~n; {5520#true} is VALID [2020-07-10 14:56:40,918 INFO L280 TraceCheckUtils]: 50: Hoare triple {5520#true} assume ~n < 1;#res := 0; {5688#(and (<= |fibo1_#res| 0) (<= 0 |fibo1_#res|))} is VALID [2020-07-10 14:56:40,918 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 [2020-07-10 14:56:40,920 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 [2020-07-10 14:56:40,921 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~ret2;havoc #t~ret3; {5676#(and (<= 1 |fibo2_#res|) (<= |fibo2_#res| 1))} is VALID [2020-07-10 14:56:40,921 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 [2020-07-10 14:56:40,922 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 [2020-07-10 14:56:40,923 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 [2020-07-10 14:56:40,924 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 [2020-07-10 14:56:40,925 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 [2020-07-10 14:56:40,929 INFO L263 TraceCheckUtils]: 0: Hoare triple {5520#true} call ULTIMATE.init(); {5520#true} is VALID [2020-07-10 14:56:40,929 INFO L280 TraceCheckUtils]: 1: Hoare triple {5520#true} assume true; {5520#true} is VALID [2020-07-10 14:56:40,929 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {5520#true} {5520#true} #47#return; {5520#true} is VALID [2020-07-10 14:56:40,930 INFO L263 TraceCheckUtils]: 3: Hoare triple {5520#true} call #t~ret5 := main(); {5520#true} is VALID [2020-07-10 14:56:40,930 INFO L280 TraceCheckUtils]: 4: Hoare triple {5520#true} ~x~0 := 4; {5520#true} is VALID [2020-07-10 14:56:40,930 INFO L263 TraceCheckUtils]: 5: Hoare triple {5520#true} call #t~ret4 := fibo1(~x~0); {5520#true} is VALID [2020-07-10 14:56:40,930 INFO L280 TraceCheckUtils]: 6: Hoare triple {5520#true} ~n := #in~n; {5520#true} is VALID [2020-07-10 14:56:40,930 INFO L280 TraceCheckUtils]: 7: Hoare triple {5520#true} assume !(~n < 1); {5520#true} is VALID [2020-07-10 14:56:40,930 INFO L280 TraceCheckUtils]: 8: Hoare triple {5520#true} assume !(1 == ~n); {5520#true} is VALID [2020-07-10 14:56:40,931 INFO L263 TraceCheckUtils]: 9: Hoare triple {5520#true} call #t~ret0 := fibo2(~n - 1); {5520#true} is VALID [2020-07-10 14:56:40,931 INFO L280 TraceCheckUtils]: 10: Hoare triple {5520#true} ~n := #in~n; {5520#true} is VALID [2020-07-10 14:56:40,931 INFO L280 TraceCheckUtils]: 11: Hoare triple {5520#true} assume !(~n < 1); {5520#true} is VALID [2020-07-10 14:56:40,931 INFO L280 TraceCheckUtils]: 12: Hoare triple {5520#true} assume !(1 == ~n); {5520#true} is VALID [2020-07-10 14:56:40,931 INFO L263 TraceCheckUtils]: 13: Hoare triple {5520#true} call #t~ret2 := fibo1(~n - 1); {5520#true} is VALID [2020-07-10 14:56:40,931 INFO L280 TraceCheckUtils]: 14: Hoare triple {5520#true} ~n := #in~n; {5520#true} is VALID [2020-07-10 14:56:40,932 INFO L280 TraceCheckUtils]: 15: Hoare triple {5520#true} assume !(~n < 1); {5520#true} is VALID [2020-07-10 14:56:40,932 INFO L280 TraceCheckUtils]: 16: Hoare triple {5520#true} assume !(1 == ~n); {5520#true} is VALID [2020-07-10 14:56:40,932 INFO L263 TraceCheckUtils]: 17: Hoare triple {5520#true} call #t~ret0 := fibo2(~n - 1); {5520#true} is VALID [2020-07-10 14:56:40,932 INFO L280 TraceCheckUtils]: 18: Hoare triple {5520#true} ~n := #in~n; {5520#true} is VALID [2020-07-10 14:56:40,932 INFO L280 TraceCheckUtils]: 19: Hoare triple {5520#true} assume !(~n < 1); {5520#true} is VALID [2020-07-10 14:56:40,933 INFO L280 TraceCheckUtils]: 20: Hoare triple {5520#true} assume 1 == ~n;#res := 1; {5676#(and (<= 1 |fibo2_#res|) (<= |fibo2_#res| 1))} is VALID [2020-07-10 14:56:40,934 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 [2020-07-10 14:56:40,934 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 [2020-07-10 14:56:40,935 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 [2020-07-10 14:56:40,935 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 [2020-07-10 14:56:40,935 INFO L280 TraceCheckUtils]: 25: Hoare triple {5520#true} ~n := #in~n; {5520#true} is VALID [2020-07-10 14:56:40,936 INFO L280 TraceCheckUtils]: 26: Hoare triple {5520#true} assume ~n < 1;#res := 0; {5677#(and (<= |fibo2_#res| 0) (<= 0 |fibo2_#res|))} is VALID [2020-07-10 14:56:40,937 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 [2020-07-10 14:56:40,938 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 [2020-07-10 14:56:40,939 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 [2020-07-10 14:56:40,940 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 [2020-07-10 14:56:40,941 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 [2020-07-10 14:56:40,942 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 [2020-07-10 14:56:40,942 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 [2020-07-10 14:56:40,942 INFO L280 TraceCheckUtils]: 34: Hoare triple {5520#true} ~n := #in~n; {5520#true} is VALID [2020-07-10 14:56:40,942 INFO L280 TraceCheckUtils]: 35: Hoare triple {5520#true} assume !(~n < 1); {5520#true} is VALID [2020-07-10 14:56:40,943 INFO L280 TraceCheckUtils]: 36: Hoare triple {5520#true} assume 1 == ~n;#res := 1; {5675#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} is VALID [2020-07-10 14:56:40,943 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 [2020-07-10 14:56:40,945 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 [2020-07-10 14:56:40,946 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~ret2;havoc #t~ret3; {5663#(and (<= |fibo2_#res| 2) (<= 2 |fibo2_#res|))} is VALID [2020-07-10 14:56:40,946 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 [2020-07-10 14:56:40,947 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 [2020-07-10 14:56:40,948 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 [2020-07-10 14:56:40,948 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 [2020-07-10 14:56:40,948 INFO L280 TraceCheckUtils]: 44: Hoare triple {5520#true} ~n := #in~n; {5520#true} is VALID [2020-07-10 14:56:40,949 INFO L280 TraceCheckUtils]: 45: Hoare triple {5520#true} assume !(~n < 1); {5520#true} is VALID [2020-07-10 14:56:40,949 INFO L280 TraceCheckUtils]: 46: Hoare triple {5520#true} assume !(1 == ~n); {5520#true} is VALID [2020-07-10 14:56:40,949 INFO L263 TraceCheckUtils]: 47: Hoare triple {5520#true} call #t~ret2 := fibo1(~n - 1); {5520#true} is VALID [2020-07-10 14:56:40,949 INFO L280 TraceCheckUtils]: 48: Hoare triple {5520#true} ~n := #in~n; {5520#true} is VALID [2020-07-10 14:56:40,949 INFO L280 TraceCheckUtils]: 49: Hoare triple {5520#true} assume !(~n < 1); {5520#true} is VALID [2020-07-10 14:56:40,950 INFO L280 TraceCheckUtils]: 50: Hoare triple {5520#true} assume 1 == ~n;#res := 1; {5675#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} is VALID [2020-07-10 14:56:40,951 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 [2020-07-10 14:56:40,952 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 [2020-07-10 14:56:40,952 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 [2020-07-10 14:56:40,952 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 [2020-07-10 14:56:40,953 INFO L280 TraceCheckUtils]: 55: Hoare triple {5520#true} ~n := #in~n; {5520#true} is VALID [2020-07-10 14:56:40,953 INFO L280 TraceCheckUtils]: 56: Hoare triple {5520#true} assume ~n < 1;#res := 0; {5688#(and (<= |fibo1_#res| 0) (<= 0 |fibo1_#res|))} is VALID [2020-07-10 14:56:40,954 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 [2020-07-10 14:56:40,955 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 [2020-07-10 14:56:40,956 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~ret2;havoc #t~ret3; {5676#(and (<= 1 |fibo2_#res|) (<= |fibo2_#res| 1))} is VALID [2020-07-10 14:56:40,957 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 [2020-07-10 14:56:40,958 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 [2020-07-10 14:56:40,959 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 [2020-07-10 14:56:40,960 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 [2020-07-10 14:56:40,961 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 [2020-07-10 14:56:40,962 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 [2020-07-10 14:56:40,962 INFO L280 TraceCheckUtils]: 66: Hoare triple {5584#(and (<= main_~result~0 3) (<= 3 main_~result~0))} assume 3 != ~result~0; {5521#false} is VALID [2020-07-10 14:56:40,963 INFO L280 TraceCheckUtils]: 67: Hoare triple {5521#false} assume !false; {5521#false} is VALID [2020-07-10 14:56:40,968 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2020-07-10 14:56:40,969 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572680424] [2020-07-10 14:56:40,969 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1004047301] [2020-07-10 14:56:40,969 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 [2020-07-10 14:56:41,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:56:41,009 INFO L264 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 39 conjunts are in the unsatisfiable core [2020-07-10 14:56:41,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:56:41,025 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-10 14:56:41,454 INFO L263 TraceCheckUtils]: 0: Hoare triple {5520#true} call ULTIMATE.init(); {5520#true} is VALID [2020-07-10 14:56:41,454 INFO L280 TraceCheckUtils]: 1: Hoare triple {5520#true} assume true; {5520#true} is VALID [2020-07-10 14:56:41,455 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {5520#true} {5520#true} #47#return; {5520#true} is VALID [2020-07-10 14:56:41,455 INFO L263 TraceCheckUtils]: 3: Hoare triple {5520#true} call #t~ret5 := main(); {5520#true} is VALID [2020-07-10 14:56:41,455 INFO L280 TraceCheckUtils]: 4: Hoare triple {5520#true} ~x~0 := 4; {5520#true} is VALID [2020-07-10 14:56:41,456 INFO L263 TraceCheckUtils]: 5: Hoare triple {5520#true} call #t~ret4 := fibo1(~x~0); {5520#true} is VALID [2020-07-10 14:56:41,456 INFO L280 TraceCheckUtils]: 6: Hoare triple {5520#true} ~n := #in~n; {5520#true} is VALID [2020-07-10 14:56:41,456 INFO L280 TraceCheckUtils]: 7: Hoare triple {5520#true} assume !(~n < 1); {5520#true} is VALID [2020-07-10 14:56:41,456 INFO L280 TraceCheckUtils]: 8: Hoare triple {5520#true} assume !(1 == ~n); {5520#true} is VALID [2020-07-10 14:56:41,456 INFO L263 TraceCheckUtils]: 9: Hoare triple {5520#true} call #t~ret0 := fibo2(~n - 1); {5520#true} is VALID [2020-07-10 14:56:41,456 INFO L280 TraceCheckUtils]: 10: Hoare triple {5520#true} ~n := #in~n; {5520#true} is VALID [2020-07-10 14:56:41,457 INFO L280 TraceCheckUtils]: 11: Hoare triple {5520#true} assume !(~n < 1); {5520#true} is VALID [2020-07-10 14:56:41,457 INFO L280 TraceCheckUtils]: 12: Hoare triple {5520#true} assume !(1 == ~n); {5520#true} is VALID [2020-07-10 14:56:41,457 INFO L263 TraceCheckUtils]: 13: Hoare triple {5520#true} call #t~ret2 := fibo1(~n - 1); {5520#true} is VALID [2020-07-10 14:56:41,457 INFO L280 TraceCheckUtils]: 14: Hoare triple {5520#true} ~n := #in~n; {5520#true} is VALID [2020-07-10 14:56:41,457 INFO L280 TraceCheckUtils]: 15: Hoare triple {5520#true} assume !(~n < 1); {5520#true} is VALID [2020-07-10 14:56:41,457 INFO L280 TraceCheckUtils]: 16: Hoare triple {5520#true} assume !(1 == ~n); {5520#true} is VALID [2020-07-10 14:56:41,458 INFO L263 TraceCheckUtils]: 17: Hoare triple {5520#true} call #t~ret0 := fibo2(~n - 1); {5520#true} is VALID [2020-07-10 14:56:41,458 INFO L280 TraceCheckUtils]: 18: Hoare triple {5520#true} ~n := #in~n; {5520#true} is VALID [2020-07-10 14:56:41,458 INFO L280 TraceCheckUtils]: 19: Hoare triple {5520#true} assume !(~n < 1); {5520#true} is VALID [2020-07-10 14:56:41,458 INFO L280 TraceCheckUtils]: 20: Hoare triple {5520#true} assume 1 == ~n;#res := 1; {5676#(and (<= 1 |fibo2_#res|) (<= |fibo2_#res| 1))} is VALID [2020-07-10 14:56:41,459 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 [2020-07-10 14:56:41,460 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 [2020-07-10 14:56:41,460 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 [2020-07-10 14:56:41,461 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 [2020-07-10 14:56:41,461 INFO L280 TraceCheckUtils]: 25: Hoare triple {5520#true} ~n := #in~n; {5520#true} is VALID [2020-07-10 14:56:41,461 INFO L280 TraceCheckUtils]: 26: Hoare triple {5520#true} assume ~n < 1;#res := 0; {5677#(and (<= |fibo2_#res| 0) (<= 0 |fibo2_#res|))} is VALID [2020-07-10 14:56:41,462 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 [2020-07-10 14:56:41,478 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 [2020-07-10 14:56:41,479 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 [2020-07-10 14:56:41,479 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 [2020-07-10 14:56:41,480 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 [2020-07-10 14:56:41,480 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 [2020-07-10 14:56:41,480 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 [2020-07-10 14:56:41,480 INFO L280 TraceCheckUtils]: 34: Hoare triple {5520#true} ~n := #in~n; {5520#true} is VALID [2020-07-10 14:56:41,481 INFO L280 TraceCheckUtils]: 35: Hoare triple {5520#true} assume !(~n < 1); {5520#true} is VALID [2020-07-10 14:56:41,481 INFO L280 TraceCheckUtils]: 36: Hoare triple {5520#true} assume 1 == ~n;#res := 1; {5675#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} is VALID [2020-07-10 14:56:41,481 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 [2020-07-10 14:56:41,482 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 [2020-07-10 14:56:41,483 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~ret2;havoc #t~ret3; {5663#(and (<= |fibo2_#res| 2) (<= 2 |fibo2_#res|))} is VALID [2020-07-10 14:56:41,483 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 [2020-07-10 14:56:41,484 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 [2020-07-10 14:56:41,485 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 [2020-07-10 14:56:41,485 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 [2020-07-10 14:56:41,485 INFO L280 TraceCheckUtils]: 44: Hoare triple {5520#true} ~n := #in~n; {5520#true} is VALID [2020-07-10 14:56:41,485 INFO L280 TraceCheckUtils]: 45: Hoare triple {5520#true} assume !(~n < 1); {5520#true} is VALID [2020-07-10 14:56:41,485 INFO L280 TraceCheckUtils]: 46: Hoare triple {5520#true} assume !(1 == ~n); {5520#true} is VALID [2020-07-10 14:56:41,485 INFO L263 TraceCheckUtils]: 47: Hoare triple {5520#true} call #t~ret2 := fibo1(~n - 1); {5520#true} is VALID [2020-07-10 14:56:41,486 INFO L280 TraceCheckUtils]: 48: Hoare triple {5520#true} ~n := #in~n; {5520#true} is VALID [2020-07-10 14:56:41,486 INFO L280 TraceCheckUtils]: 49: Hoare triple {5520#true} assume !(~n < 1); {5520#true} is VALID [2020-07-10 14:56:41,487 INFO L280 TraceCheckUtils]: 50: Hoare triple {5520#true} assume 1 == ~n;#res := 1; {5675#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} is VALID [2020-07-10 14:56:41,487 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 [2020-07-10 14:56:41,488 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 [2020-07-10 14:56:41,488 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 [2020-07-10 14:56:41,488 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 [2020-07-10 14:56:41,488 INFO L280 TraceCheckUtils]: 55: Hoare triple {5520#true} ~n := #in~n; {5520#true} is VALID [2020-07-10 14:56:41,489 INFO L280 TraceCheckUtils]: 56: Hoare triple {5520#true} assume ~n < 1;#res := 0; {5688#(and (<= |fibo1_#res| 0) (<= 0 |fibo1_#res|))} is VALID [2020-07-10 14:56:41,489 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 [2020-07-10 14:56:41,490 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 [2020-07-10 14:56:41,491 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~ret2;havoc #t~ret3; {5676#(and (<= 1 |fibo2_#res|) (<= |fibo2_#res| 1))} is VALID [2020-07-10 14:56:41,491 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 [2020-07-10 14:56:41,492 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 [2020-07-10 14:56:41,493 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 [2020-07-10 14:56:41,494 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 [2020-07-10 14:56:41,495 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 [2020-07-10 14:56:41,495 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 [2020-07-10 14:56:41,496 INFO L280 TraceCheckUtils]: 66: Hoare triple {5584#(and (<= main_~result~0 3) (<= 3 main_~result~0))} assume 3 != ~result~0; {5521#false} is VALID [2020-07-10 14:56:41,496 INFO L280 TraceCheckUtils]: 67: Hoare triple {5521#false} assume !false; {5521#false} is VALID [2020-07-10 14:56:41,500 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2020-07-10 14:56:41,501 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-10 14:56:41,501 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 21 [2020-07-10 14:56:41,501 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389053851] [2020-07-10 14:56:41,501 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 68 [2020-07-10 14:56:41,502 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 14:56:41,502 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 21 states. [2020-07-10 14:56:41,573 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 53 edges. 53 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 14:56:41,573 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-07-10 14:56:41,573 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-10 14:56:41,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-07-10 14:56:41,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=373, Unknown=0, NotChecked=0, Total=420 [2020-07-10 14:56:41,574 INFO L87 Difference]: Start difference. First operand 80 states and 107 transitions. Second operand 21 states. [2020-07-10 14:56:42,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 14:56:42,574 INFO L93 Difference]: Finished difference Result 97 states and 131 transitions. [2020-07-10 14:56:42,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-07-10 14:56:42,574 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 68 [2020-07-10 14:56:42,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 14:56:42,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-07-10 14:56:42,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 68 transitions. [2020-07-10 14:56:42,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-07-10 14:56:42,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 68 transitions. [2020-07-10 14:56:42,578 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 17 states and 68 transitions. [2020-07-10 14:56:42,660 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 68 edges. 68 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 14:56:42,664 INFO L225 Difference]: With dead ends: 97 [2020-07-10 14:56:42,664 INFO L226 Difference]: Without dead ends: 93 [2020-07-10 14:56:42,665 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 84 SyntacticMatches, 5 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=47, Invalid=373, Unknown=0, NotChecked=0, Total=420 [2020-07-10 14:56:42,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2020-07-10 14:56:42,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 90. [2020-07-10 14:56:42,715 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 14:56:42,715 INFO L82 GeneralOperation]: Start isEquivalent. First operand 93 states. Second operand 90 states. [2020-07-10 14:56:42,715 INFO L74 IsIncluded]: Start isIncluded. First operand 93 states. Second operand 90 states. [2020-07-10 14:56:42,715 INFO L87 Difference]: Start difference. First operand 93 states. Second operand 90 states. [2020-07-10 14:56:42,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 14:56:42,720 INFO L93 Difference]: Finished difference Result 93 states and 127 transitions. [2020-07-10 14:56:42,720 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 127 transitions. [2020-07-10 14:56:42,721 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 14:56:42,721 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 14:56:42,721 INFO L74 IsIncluded]: Start isIncluded. First operand 90 states. Second operand 93 states. [2020-07-10 14:56:42,721 INFO L87 Difference]: Start difference. First operand 90 states. Second operand 93 states. [2020-07-10 14:56:42,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 14:56:42,724 INFO L93 Difference]: Finished difference Result 93 states and 127 transitions. [2020-07-10 14:56:42,724 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 127 transitions. [2020-07-10 14:56:42,725 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 14:56:42,725 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 14:56:42,725 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 14:56:42,726 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 14:56:42,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2020-07-10 14:56:42,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 122 transitions. [2020-07-10 14:56:42,729 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 122 transitions. Word has length 68 [2020-07-10 14:56:42,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 14:56:42,729 INFO L479 AbstractCegarLoop]: Abstraction has 90 states and 122 transitions. [2020-07-10 14:56:42,729 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-07-10 14:56:42,729 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 122 transitions. [2020-07-10 14:56:42,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-07-10 14:56:42,731 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 14:56:42,731 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] [2020-07-10 14:56:42,945 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-07-10 14:56:42,945 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 14:56:42,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 14:56:42,946 INFO L82 PathProgramCache]: Analyzing trace with hash -1711191765, now seen corresponding path program 1 times [2020-07-10 14:56:42,946 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-10 14:56:42,947 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778569221] [2020-07-10 14:56:42,947 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 14:56:42,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:56:42,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:56:42,976 INFO L280 TraceCheckUtils]: 0: Hoare triple {6321#true} assume true; {6321#true} is VALID [2020-07-10 14:56:42,977 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {6321#true} {6321#true} #47#return; {6321#true} is VALID [2020-07-10 14:56:42,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:56:42,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:56:43,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:56:43,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:56:43,038 INFO L280 TraceCheckUtils]: 0: Hoare triple {6321#true} ~n := #in~n; {6472#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-10 14:56:43,038 INFO L280 TraceCheckUtils]: 1: Hoare triple {6472#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {6472#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-10 14:56:43,039 INFO L280 TraceCheckUtils]: 2: Hoare triple {6472#(= fibo2_~n |fibo2_#in~n|)} assume 1 == ~n;#res := 1; {6473#(<= |fibo2_#in~n| 1)} is VALID [2020-07-10 14:56:43,039 INFO L280 TraceCheckUtils]: 3: Hoare triple {6473#(<= |fibo2_#in~n| 1)} assume true; {6473#(<= |fibo2_#in~n| 1)} is VALID [2020-07-10 14:56:43,040 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {6473#(<= |fibo2_#in~n| 1)} {6321#true} #57#return; {6466#(<= fibo1_~n 2)} is VALID [2020-07-10 14:56:43,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:56:43,055 INFO L280 TraceCheckUtils]: 0: Hoare triple {6321#true} ~n := #in~n; {6472#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-10 14:56:43,056 INFO L280 TraceCheckUtils]: 1: Hoare triple {6472#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {6474#(<= 1 |fibo2_#in~n|)} is VALID [2020-07-10 14:56:43,056 INFO L280 TraceCheckUtils]: 2: Hoare triple {6474#(<= 1 |fibo2_#in~n|)} assume 1 == ~n;#res := 1; {6474#(<= 1 |fibo2_#in~n|)} is VALID [2020-07-10 14:56:43,057 INFO L280 TraceCheckUtils]: 3: Hoare triple {6474#(<= 1 |fibo2_#in~n|)} assume true; {6474#(<= 1 |fibo2_#in~n|)} is VALID [2020-07-10 14:56:43,058 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {6474#(<= 1 |fibo2_#in~n|)} {6466#(<= fibo1_~n 2)} #59#return; {6322#false} is VALID [2020-07-10 14:56:43,058 INFO L280 TraceCheckUtils]: 0: Hoare triple {6321#true} ~n := #in~n; {6321#true} is VALID [2020-07-10 14:56:43,058 INFO L280 TraceCheckUtils]: 1: Hoare triple {6321#true} assume !(~n < 1); {6321#true} is VALID [2020-07-10 14:56:43,059 INFO L280 TraceCheckUtils]: 2: Hoare triple {6321#true} assume !(1 == ~n); {6321#true} is VALID [2020-07-10 14:56:43,059 INFO L263 TraceCheckUtils]: 3: Hoare triple {6321#true} call #t~ret0 := fibo2(~n - 1); {6321#true} is VALID [2020-07-10 14:56:43,059 INFO L280 TraceCheckUtils]: 4: Hoare triple {6321#true} ~n := #in~n; {6472#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-10 14:56:43,060 INFO L280 TraceCheckUtils]: 5: Hoare triple {6472#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {6472#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-10 14:56:43,060 INFO L280 TraceCheckUtils]: 6: Hoare triple {6472#(= fibo2_~n |fibo2_#in~n|)} assume 1 == ~n;#res := 1; {6473#(<= |fibo2_#in~n| 1)} is VALID [2020-07-10 14:56:43,061 INFO L280 TraceCheckUtils]: 7: Hoare triple {6473#(<= |fibo2_#in~n| 1)} assume true; {6473#(<= |fibo2_#in~n| 1)} is VALID [2020-07-10 14:56:43,062 INFO L275 TraceCheckUtils]: 8: Hoare quadruple {6473#(<= |fibo2_#in~n| 1)} {6321#true} #57#return; {6466#(<= fibo1_~n 2)} is VALID [2020-07-10 14:56:43,062 INFO L280 TraceCheckUtils]: 9: Hoare triple {6466#(<= fibo1_~n 2)} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {6466#(<= fibo1_~n 2)} is VALID [2020-07-10 14:56:43,063 INFO L263 TraceCheckUtils]: 10: Hoare triple {6466#(<= fibo1_~n 2)} call #t~ret1 := fibo2(~n - 2); {6321#true} is VALID [2020-07-10 14:56:43,063 INFO L280 TraceCheckUtils]: 11: Hoare triple {6321#true} ~n := #in~n; {6472#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-10 14:56:43,064 INFO L280 TraceCheckUtils]: 12: Hoare triple {6472#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {6474#(<= 1 |fibo2_#in~n|)} is VALID [2020-07-10 14:56:43,064 INFO L280 TraceCheckUtils]: 13: Hoare triple {6474#(<= 1 |fibo2_#in~n|)} assume 1 == ~n;#res := 1; {6474#(<= 1 |fibo2_#in~n|)} is VALID [2020-07-10 14:56:43,065 INFO L280 TraceCheckUtils]: 14: Hoare triple {6474#(<= 1 |fibo2_#in~n|)} assume true; {6474#(<= 1 |fibo2_#in~n|)} is VALID [2020-07-10 14:56:43,066 INFO L275 TraceCheckUtils]: 15: Hoare quadruple {6474#(<= 1 |fibo2_#in~n|)} {6466#(<= fibo1_~n 2)} #59#return; {6322#false} is VALID [2020-07-10 14:56:43,066 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 [2020-07-10 14:56:43,066 INFO L280 TraceCheckUtils]: 17: Hoare triple {6322#false} assume true; {6322#false} is VALID [2020-07-10 14:56:43,066 INFO L275 TraceCheckUtils]: 18: Hoare quadruple {6322#false} {6321#true} #53#return; {6322#false} is VALID [2020-07-10 14:56:43,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:56:43,070 INFO L280 TraceCheckUtils]: 0: Hoare triple {6321#true} ~n := #in~n; {6321#true} is VALID [2020-07-10 14:56:43,070 INFO L280 TraceCheckUtils]: 1: Hoare triple {6321#true} assume !(~n < 1); {6321#true} is VALID [2020-07-10 14:56:43,070 INFO L280 TraceCheckUtils]: 2: Hoare triple {6321#true} assume 1 == ~n;#res := 1; {6321#true} is VALID [2020-07-10 14:56:43,070 INFO L280 TraceCheckUtils]: 3: Hoare triple {6321#true} assume true; {6321#true} is VALID [2020-07-10 14:56:43,070 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {6321#true} {6322#false} #55#return; {6322#false} is VALID [2020-07-10 14:56:43,071 INFO L280 TraceCheckUtils]: 0: Hoare triple {6321#true} ~n := #in~n; {6321#true} is VALID [2020-07-10 14:56:43,071 INFO L280 TraceCheckUtils]: 1: Hoare triple {6321#true} assume !(~n < 1); {6321#true} is VALID [2020-07-10 14:56:43,071 INFO L280 TraceCheckUtils]: 2: Hoare triple {6321#true} assume !(1 == ~n); {6321#true} is VALID [2020-07-10 14:56:43,071 INFO L263 TraceCheckUtils]: 3: Hoare triple {6321#true} call #t~ret2 := fibo1(~n - 1); {6321#true} is VALID [2020-07-10 14:56:43,071 INFO L280 TraceCheckUtils]: 4: Hoare triple {6321#true} ~n := #in~n; {6321#true} is VALID [2020-07-10 14:56:43,072 INFO L280 TraceCheckUtils]: 5: Hoare triple {6321#true} assume !(~n < 1); {6321#true} is VALID [2020-07-10 14:56:43,072 INFO L280 TraceCheckUtils]: 6: Hoare triple {6321#true} assume !(1 == ~n); {6321#true} is VALID [2020-07-10 14:56:43,072 INFO L263 TraceCheckUtils]: 7: Hoare triple {6321#true} call #t~ret0 := fibo2(~n - 1); {6321#true} is VALID [2020-07-10 14:56:43,072 INFO L280 TraceCheckUtils]: 8: Hoare triple {6321#true} ~n := #in~n; {6472#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-10 14:56:43,073 INFO L280 TraceCheckUtils]: 9: Hoare triple {6472#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {6472#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-10 14:56:43,074 INFO L280 TraceCheckUtils]: 10: Hoare triple {6472#(= fibo2_~n |fibo2_#in~n|)} assume 1 == ~n;#res := 1; {6473#(<= |fibo2_#in~n| 1)} is VALID [2020-07-10 14:56:43,074 INFO L280 TraceCheckUtils]: 11: Hoare triple {6473#(<= |fibo2_#in~n| 1)} assume true; {6473#(<= |fibo2_#in~n| 1)} is VALID [2020-07-10 14:56:43,075 INFO L275 TraceCheckUtils]: 12: Hoare quadruple {6473#(<= |fibo2_#in~n| 1)} {6321#true} #57#return; {6466#(<= fibo1_~n 2)} is VALID [2020-07-10 14:56:43,076 INFO L280 TraceCheckUtils]: 13: Hoare triple {6466#(<= fibo1_~n 2)} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {6466#(<= fibo1_~n 2)} is VALID [2020-07-10 14:56:43,076 INFO L263 TraceCheckUtils]: 14: Hoare triple {6466#(<= fibo1_~n 2)} call #t~ret1 := fibo2(~n - 2); {6321#true} is VALID [2020-07-10 14:56:43,077 INFO L280 TraceCheckUtils]: 15: Hoare triple {6321#true} ~n := #in~n; {6472#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-10 14:56:43,077 INFO L280 TraceCheckUtils]: 16: Hoare triple {6472#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {6474#(<= 1 |fibo2_#in~n|)} is VALID [2020-07-10 14:56:43,078 INFO L280 TraceCheckUtils]: 17: Hoare triple {6474#(<= 1 |fibo2_#in~n|)} assume 1 == ~n;#res := 1; {6474#(<= 1 |fibo2_#in~n|)} is VALID [2020-07-10 14:56:43,078 INFO L280 TraceCheckUtils]: 18: Hoare triple {6474#(<= 1 |fibo2_#in~n|)} assume true; {6474#(<= 1 |fibo2_#in~n|)} is VALID [2020-07-10 14:56:43,080 INFO L275 TraceCheckUtils]: 19: Hoare quadruple {6474#(<= 1 |fibo2_#in~n|)} {6466#(<= fibo1_~n 2)} #59#return; {6322#false} is VALID [2020-07-10 14:56:43,080 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 [2020-07-10 14:56:43,080 INFO L280 TraceCheckUtils]: 21: Hoare triple {6322#false} assume true; {6322#false} is VALID [2020-07-10 14:56:43,080 INFO L275 TraceCheckUtils]: 22: Hoare quadruple {6322#false} {6321#true} #53#return; {6322#false} is VALID [2020-07-10 14:56:43,080 INFO L280 TraceCheckUtils]: 23: Hoare triple {6322#false} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {6322#false} is VALID [2020-07-10 14:56:43,081 INFO L263 TraceCheckUtils]: 24: Hoare triple {6322#false} call #t~ret3 := fibo1(~n - 2); {6321#true} is VALID [2020-07-10 14:56:43,081 INFO L280 TraceCheckUtils]: 25: Hoare triple {6321#true} ~n := #in~n; {6321#true} is VALID [2020-07-10 14:56:43,081 INFO L280 TraceCheckUtils]: 26: Hoare triple {6321#true} assume !(~n < 1); {6321#true} is VALID [2020-07-10 14:56:43,081 INFO L280 TraceCheckUtils]: 27: Hoare triple {6321#true} assume 1 == ~n;#res := 1; {6321#true} is VALID [2020-07-10 14:56:43,081 INFO L280 TraceCheckUtils]: 28: Hoare triple {6321#true} assume true; {6321#true} is VALID [2020-07-10 14:56:43,081 INFO L275 TraceCheckUtils]: 29: Hoare quadruple {6321#true} {6322#false} #55#return; {6322#false} is VALID [2020-07-10 14:56:43,082 INFO L280 TraceCheckUtils]: 30: Hoare triple {6322#false} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647;#res := #t~ret2 + #t~ret3;havoc #t~ret2;havoc #t~ret3; {6322#false} is VALID [2020-07-10 14:56:43,082 INFO L280 TraceCheckUtils]: 31: Hoare triple {6322#false} assume true; {6322#false} is VALID [2020-07-10 14:56:43,082 INFO L275 TraceCheckUtils]: 32: Hoare quadruple {6322#false} {6321#true} #57#return; {6322#false} is VALID [2020-07-10 14:56:43,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:56:43,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:56:43,091 INFO L280 TraceCheckUtils]: 0: Hoare triple {6321#true} ~n := #in~n; {6321#true} is VALID [2020-07-10 14:56:43,091 INFO L280 TraceCheckUtils]: 1: Hoare triple {6321#true} assume !(~n < 1); {6321#true} is VALID [2020-07-10 14:56:43,092 INFO L280 TraceCheckUtils]: 2: Hoare triple {6321#true} assume 1 == ~n;#res := 1; {6321#true} is VALID [2020-07-10 14:56:43,092 INFO L280 TraceCheckUtils]: 3: Hoare triple {6321#true} assume true; {6321#true} is VALID [2020-07-10 14:56:43,092 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {6321#true} {6321#true} #53#return; {6321#true} is VALID [2020-07-10 14:56:43,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:56:43,095 INFO L280 TraceCheckUtils]: 0: Hoare triple {6321#true} ~n := #in~n; {6321#true} is VALID [2020-07-10 14:56:43,095 INFO L280 TraceCheckUtils]: 1: Hoare triple {6321#true} assume ~n < 1;#res := 0; {6321#true} is VALID [2020-07-10 14:56:43,095 INFO L280 TraceCheckUtils]: 2: Hoare triple {6321#true} assume true; {6321#true} is VALID [2020-07-10 14:56:43,095 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {6321#true} {6321#true} #55#return; {6321#true} is VALID [2020-07-10 14:56:43,096 INFO L280 TraceCheckUtils]: 0: Hoare triple {6321#true} ~n := #in~n; {6321#true} is VALID [2020-07-10 14:56:43,096 INFO L280 TraceCheckUtils]: 1: Hoare triple {6321#true} assume !(~n < 1); {6321#true} is VALID [2020-07-10 14:56:43,096 INFO L280 TraceCheckUtils]: 2: Hoare triple {6321#true} assume !(1 == ~n); {6321#true} is VALID [2020-07-10 14:56:43,096 INFO L263 TraceCheckUtils]: 3: Hoare triple {6321#true} call #t~ret2 := fibo1(~n - 1); {6321#true} is VALID [2020-07-10 14:56:43,096 INFO L280 TraceCheckUtils]: 4: Hoare triple {6321#true} ~n := #in~n; {6321#true} is VALID [2020-07-10 14:56:43,096 INFO L280 TraceCheckUtils]: 5: Hoare triple {6321#true} assume !(~n < 1); {6321#true} is VALID [2020-07-10 14:56:43,097 INFO L280 TraceCheckUtils]: 6: Hoare triple {6321#true} assume 1 == ~n;#res := 1; {6321#true} is VALID [2020-07-10 14:56:43,097 INFO L280 TraceCheckUtils]: 7: Hoare triple {6321#true} assume true; {6321#true} is VALID [2020-07-10 14:56:43,097 INFO L275 TraceCheckUtils]: 8: Hoare quadruple {6321#true} {6321#true} #53#return; {6321#true} is VALID [2020-07-10 14:56:43,097 INFO L280 TraceCheckUtils]: 9: Hoare triple {6321#true} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {6321#true} is VALID [2020-07-10 14:56:43,098 INFO L263 TraceCheckUtils]: 10: Hoare triple {6321#true} call #t~ret3 := fibo1(~n - 2); {6321#true} is VALID [2020-07-10 14:56:43,098 INFO L280 TraceCheckUtils]: 11: Hoare triple {6321#true} ~n := #in~n; {6321#true} is VALID [2020-07-10 14:56:43,098 INFO L280 TraceCheckUtils]: 12: Hoare triple {6321#true} assume ~n < 1;#res := 0; {6321#true} is VALID [2020-07-10 14:56:43,098 INFO L280 TraceCheckUtils]: 13: Hoare triple {6321#true} assume true; {6321#true} is VALID [2020-07-10 14:56:43,098 INFO L275 TraceCheckUtils]: 14: Hoare quadruple {6321#true} {6321#true} #55#return; {6321#true} is VALID [2020-07-10 14:56:43,098 INFO L280 TraceCheckUtils]: 15: Hoare triple {6321#true} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647;#res := #t~ret2 + #t~ret3;havoc #t~ret2;havoc #t~ret3; {6321#true} is VALID [2020-07-10 14:56:43,099 INFO L280 TraceCheckUtils]: 16: Hoare triple {6321#true} assume true; {6321#true} is VALID [2020-07-10 14:56:43,099 INFO L275 TraceCheckUtils]: 17: Hoare quadruple {6321#true} {6322#false} #59#return; {6322#false} is VALID [2020-07-10 14:56:43,099 INFO L280 TraceCheckUtils]: 0: Hoare triple {6321#true} ~n := #in~n; {6321#true} is VALID [2020-07-10 14:56:43,099 INFO L280 TraceCheckUtils]: 1: Hoare triple {6321#true} assume !(~n < 1); {6321#true} is VALID [2020-07-10 14:56:43,100 INFO L280 TraceCheckUtils]: 2: Hoare triple {6321#true} assume !(1 == ~n); {6321#true} is VALID [2020-07-10 14:56:43,100 INFO L263 TraceCheckUtils]: 3: Hoare triple {6321#true} call #t~ret0 := fibo2(~n - 1); {6321#true} is VALID [2020-07-10 14:56:43,100 INFO L280 TraceCheckUtils]: 4: Hoare triple {6321#true} ~n := #in~n; {6321#true} is VALID [2020-07-10 14:56:43,100 INFO L280 TraceCheckUtils]: 5: Hoare triple {6321#true} assume !(~n < 1); {6321#true} is VALID [2020-07-10 14:56:43,100 INFO L280 TraceCheckUtils]: 6: Hoare triple {6321#true} assume !(1 == ~n); {6321#true} is VALID [2020-07-10 14:56:43,117 INFO L263 TraceCheckUtils]: 7: Hoare triple {6321#true} call #t~ret2 := fibo1(~n - 1); {6321#true} is VALID [2020-07-10 14:56:43,118 INFO L280 TraceCheckUtils]: 8: Hoare triple {6321#true} ~n := #in~n; {6321#true} is VALID [2020-07-10 14:56:43,118 INFO L280 TraceCheckUtils]: 9: Hoare triple {6321#true} assume !(~n < 1); {6321#true} is VALID [2020-07-10 14:56:43,118 INFO L280 TraceCheckUtils]: 10: Hoare triple {6321#true} assume !(1 == ~n); {6321#true} is VALID [2020-07-10 14:56:43,118 INFO L263 TraceCheckUtils]: 11: Hoare triple {6321#true} call #t~ret0 := fibo2(~n - 1); {6321#true} is VALID [2020-07-10 14:56:43,119 INFO L280 TraceCheckUtils]: 12: Hoare triple {6321#true} ~n := #in~n; {6472#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-10 14:56:43,120 INFO L280 TraceCheckUtils]: 13: Hoare triple {6472#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {6472#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-10 14:56:43,120 INFO L280 TraceCheckUtils]: 14: Hoare triple {6472#(= fibo2_~n |fibo2_#in~n|)} assume 1 == ~n;#res := 1; {6473#(<= |fibo2_#in~n| 1)} is VALID [2020-07-10 14:56:43,121 INFO L280 TraceCheckUtils]: 15: Hoare triple {6473#(<= |fibo2_#in~n| 1)} assume true; {6473#(<= |fibo2_#in~n| 1)} is VALID [2020-07-10 14:56:43,122 INFO L275 TraceCheckUtils]: 16: Hoare quadruple {6473#(<= |fibo2_#in~n| 1)} {6321#true} #57#return; {6466#(<= fibo1_~n 2)} is VALID [2020-07-10 14:56:43,122 INFO L280 TraceCheckUtils]: 17: Hoare triple {6466#(<= fibo1_~n 2)} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {6466#(<= fibo1_~n 2)} is VALID [2020-07-10 14:56:43,123 INFO L263 TraceCheckUtils]: 18: Hoare triple {6466#(<= fibo1_~n 2)} call #t~ret1 := fibo2(~n - 2); {6321#true} is VALID [2020-07-10 14:56:43,123 INFO L280 TraceCheckUtils]: 19: Hoare triple {6321#true} ~n := #in~n; {6472#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-10 14:56:43,124 INFO L280 TraceCheckUtils]: 20: Hoare triple {6472#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {6474#(<= 1 |fibo2_#in~n|)} is VALID [2020-07-10 14:56:43,124 INFO L280 TraceCheckUtils]: 21: Hoare triple {6474#(<= 1 |fibo2_#in~n|)} assume 1 == ~n;#res := 1; {6474#(<= 1 |fibo2_#in~n|)} is VALID [2020-07-10 14:56:43,125 INFO L280 TraceCheckUtils]: 22: Hoare triple {6474#(<= 1 |fibo2_#in~n|)} assume true; {6474#(<= 1 |fibo2_#in~n|)} is VALID [2020-07-10 14:56:43,125 INFO L275 TraceCheckUtils]: 23: Hoare quadruple {6474#(<= 1 |fibo2_#in~n|)} {6466#(<= fibo1_~n 2)} #59#return; {6322#false} is VALID [2020-07-10 14:56:43,126 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 [2020-07-10 14:56:43,126 INFO L280 TraceCheckUtils]: 25: Hoare triple {6322#false} assume true; {6322#false} is VALID [2020-07-10 14:56:43,126 INFO L275 TraceCheckUtils]: 26: Hoare quadruple {6322#false} {6321#true} #53#return; {6322#false} is VALID [2020-07-10 14:56:43,126 INFO L280 TraceCheckUtils]: 27: Hoare triple {6322#false} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {6322#false} is VALID [2020-07-10 14:56:43,126 INFO L263 TraceCheckUtils]: 28: Hoare triple {6322#false} call #t~ret3 := fibo1(~n - 2); {6321#true} is VALID [2020-07-10 14:56:43,126 INFO L280 TraceCheckUtils]: 29: Hoare triple {6321#true} ~n := #in~n; {6321#true} is VALID [2020-07-10 14:56:43,127 INFO L280 TraceCheckUtils]: 30: Hoare triple {6321#true} assume !(~n < 1); {6321#true} is VALID [2020-07-10 14:56:43,127 INFO L280 TraceCheckUtils]: 31: Hoare triple {6321#true} assume 1 == ~n;#res := 1; {6321#true} is VALID [2020-07-10 14:56:43,127 INFO L280 TraceCheckUtils]: 32: Hoare triple {6321#true} assume true; {6321#true} is VALID [2020-07-10 14:56:43,127 INFO L275 TraceCheckUtils]: 33: Hoare quadruple {6321#true} {6322#false} #55#return; {6322#false} is VALID [2020-07-10 14:56:43,127 INFO L280 TraceCheckUtils]: 34: Hoare triple {6322#false} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647;#res := #t~ret2 + #t~ret3;havoc #t~ret2;havoc #t~ret3; {6322#false} is VALID [2020-07-10 14:56:43,128 INFO L280 TraceCheckUtils]: 35: Hoare triple {6322#false} assume true; {6322#false} is VALID [2020-07-10 14:56:43,128 INFO L275 TraceCheckUtils]: 36: Hoare quadruple {6322#false} {6321#true} #57#return; {6322#false} is VALID [2020-07-10 14:56:43,128 INFO L280 TraceCheckUtils]: 37: Hoare triple {6322#false} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {6322#false} is VALID [2020-07-10 14:56:43,128 INFO L263 TraceCheckUtils]: 38: Hoare triple {6322#false} call #t~ret1 := fibo2(~n - 2); {6321#true} is VALID [2020-07-10 14:56:43,128 INFO L280 TraceCheckUtils]: 39: Hoare triple {6321#true} ~n := #in~n; {6321#true} is VALID [2020-07-10 14:56:43,128 INFO L280 TraceCheckUtils]: 40: Hoare triple {6321#true} assume !(~n < 1); {6321#true} is VALID [2020-07-10 14:56:43,129 INFO L280 TraceCheckUtils]: 41: Hoare triple {6321#true} assume !(1 == ~n); {6321#true} is VALID [2020-07-10 14:56:43,129 INFO L263 TraceCheckUtils]: 42: Hoare triple {6321#true} call #t~ret2 := fibo1(~n - 1); {6321#true} is VALID [2020-07-10 14:56:43,129 INFO L280 TraceCheckUtils]: 43: Hoare triple {6321#true} ~n := #in~n; {6321#true} is VALID [2020-07-10 14:56:43,129 INFO L280 TraceCheckUtils]: 44: Hoare triple {6321#true} assume !(~n < 1); {6321#true} is VALID [2020-07-10 14:56:43,129 INFO L280 TraceCheckUtils]: 45: Hoare triple {6321#true} assume 1 == ~n;#res := 1; {6321#true} is VALID [2020-07-10 14:56:43,130 INFO L280 TraceCheckUtils]: 46: Hoare triple {6321#true} assume true; {6321#true} is VALID [2020-07-10 14:56:43,130 INFO L275 TraceCheckUtils]: 47: Hoare quadruple {6321#true} {6321#true} #53#return; {6321#true} is VALID [2020-07-10 14:56:43,130 INFO L280 TraceCheckUtils]: 48: Hoare triple {6321#true} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {6321#true} is VALID [2020-07-10 14:56:43,130 INFO L263 TraceCheckUtils]: 49: Hoare triple {6321#true} call #t~ret3 := fibo1(~n - 2); {6321#true} is VALID [2020-07-10 14:56:43,130 INFO L280 TraceCheckUtils]: 50: Hoare triple {6321#true} ~n := #in~n; {6321#true} is VALID [2020-07-10 14:56:43,130 INFO L280 TraceCheckUtils]: 51: Hoare triple {6321#true} assume ~n < 1;#res := 0; {6321#true} is VALID [2020-07-10 14:56:43,131 INFO L280 TraceCheckUtils]: 52: Hoare triple {6321#true} assume true; {6321#true} is VALID [2020-07-10 14:56:43,131 INFO L275 TraceCheckUtils]: 53: Hoare quadruple {6321#true} {6321#true} #55#return; {6321#true} is VALID [2020-07-10 14:56:43,131 INFO L280 TraceCheckUtils]: 54: Hoare triple {6321#true} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647;#res := #t~ret2 + #t~ret3;havoc #t~ret2;havoc #t~ret3; {6321#true} is VALID [2020-07-10 14:56:43,131 INFO L280 TraceCheckUtils]: 55: Hoare triple {6321#true} assume true; {6321#true} is VALID [2020-07-10 14:56:43,131 INFO L275 TraceCheckUtils]: 56: Hoare quadruple {6321#true} {6322#false} #59#return; {6322#false} is VALID [2020-07-10 14:56:43,132 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 [2020-07-10 14:56:43,132 INFO L280 TraceCheckUtils]: 58: Hoare triple {6322#false} assume true; {6322#false} is VALID [2020-07-10 14:56:43,132 INFO L275 TraceCheckUtils]: 59: Hoare quadruple {6322#false} {6325#(<= main_~x~0 4)} #51#return; {6322#false} is VALID [2020-07-10 14:56:43,134 INFO L263 TraceCheckUtils]: 0: Hoare triple {6321#true} call ULTIMATE.init(); {6321#true} is VALID [2020-07-10 14:56:43,134 INFO L280 TraceCheckUtils]: 1: Hoare triple {6321#true} assume true; {6321#true} is VALID [2020-07-10 14:56:43,134 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {6321#true} {6321#true} #47#return; {6321#true} is VALID [2020-07-10 14:56:43,135 INFO L263 TraceCheckUtils]: 3: Hoare triple {6321#true} call #t~ret5 := main(); {6321#true} is VALID [2020-07-10 14:56:43,135 INFO L280 TraceCheckUtils]: 4: Hoare triple {6321#true} ~x~0 := 4; {6325#(<= main_~x~0 4)} is VALID [2020-07-10 14:56:43,135 INFO L263 TraceCheckUtils]: 5: Hoare triple {6325#(<= main_~x~0 4)} call #t~ret4 := fibo1(~x~0); {6321#true} is VALID [2020-07-10 14:56:43,136 INFO L280 TraceCheckUtils]: 6: Hoare triple {6321#true} ~n := #in~n; {6321#true} is VALID [2020-07-10 14:56:43,136 INFO L280 TraceCheckUtils]: 7: Hoare triple {6321#true} assume !(~n < 1); {6321#true} is VALID [2020-07-10 14:56:43,136 INFO L280 TraceCheckUtils]: 8: Hoare triple {6321#true} assume !(1 == ~n); {6321#true} is VALID [2020-07-10 14:56:43,136 INFO L263 TraceCheckUtils]: 9: Hoare triple {6321#true} call #t~ret0 := fibo2(~n - 1); {6321#true} is VALID [2020-07-10 14:56:43,136 INFO L280 TraceCheckUtils]: 10: Hoare triple {6321#true} ~n := #in~n; {6321#true} is VALID [2020-07-10 14:56:43,137 INFO L280 TraceCheckUtils]: 11: Hoare triple {6321#true} assume !(~n < 1); {6321#true} is VALID [2020-07-10 14:56:43,137 INFO L280 TraceCheckUtils]: 12: Hoare triple {6321#true} assume !(1 == ~n); {6321#true} is VALID [2020-07-10 14:56:43,137 INFO L263 TraceCheckUtils]: 13: Hoare triple {6321#true} call #t~ret2 := fibo1(~n - 1); {6321#true} is VALID [2020-07-10 14:56:43,137 INFO L280 TraceCheckUtils]: 14: Hoare triple {6321#true} ~n := #in~n; {6321#true} is VALID [2020-07-10 14:56:43,137 INFO L280 TraceCheckUtils]: 15: Hoare triple {6321#true} assume !(~n < 1); {6321#true} is VALID [2020-07-10 14:56:43,137 INFO L280 TraceCheckUtils]: 16: Hoare triple {6321#true} assume !(1 == ~n); {6321#true} is VALID [2020-07-10 14:56:43,138 INFO L263 TraceCheckUtils]: 17: Hoare triple {6321#true} call #t~ret0 := fibo2(~n - 1); {6321#true} is VALID [2020-07-10 14:56:43,138 INFO L280 TraceCheckUtils]: 18: Hoare triple {6321#true} ~n := #in~n; {6472#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-10 14:56:43,139 INFO L280 TraceCheckUtils]: 19: Hoare triple {6472#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {6472#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-10 14:56:43,139 INFO L280 TraceCheckUtils]: 20: Hoare triple {6472#(= fibo2_~n |fibo2_#in~n|)} assume 1 == ~n;#res := 1; {6473#(<= |fibo2_#in~n| 1)} is VALID [2020-07-10 14:56:43,140 INFO L280 TraceCheckUtils]: 21: Hoare triple {6473#(<= |fibo2_#in~n| 1)} assume true; {6473#(<= |fibo2_#in~n| 1)} is VALID [2020-07-10 14:56:43,141 INFO L275 TraceCheckUtils]: 22: Hoare quadruple {6473#(<= |fibo2_#in~n| 1)} {6321#true} #57#return; {6466#(<= fibo1_~n 2)} is VALID [2020-07-10 14:56:43,141 INFO L280 TraceCheckUtils]: 23: Hoare triple {6466#(<= fibo1_~n 2)} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {6466#(<= fibo1_~n 2)} is VALID [2020-07-10 14:56:43,141 INFO L263 TraceCheckUtils]: 24: Hoare triple {6466#(<= fibo1_~n 2)} call #t~ret1 := fibo2(~n - 2); {6321#true} is VALID [2020-07-10 14:56:43,142 INFO L280 TraceCheckUtils]: 25: Hoare triple {6321#true} ~n := #in~n; {6472#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-10 14:56:43,142 INFO L280 TraceCheckUtils]: 26: Hoare triple {6472#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {6474#(<= 1 |fibo2_#in~n|)} is VALID [2020-07-10 14:56:43,143 INFO L280 TraceCheckUtils]: 27: Hoare triple {6474#(<= 1 |fibo2_#in~n|)} assume 1 == ~n;#res := 1; {6474#(<= 1 |fibo2_#in~n|)} is VALID [2020-07-10 14:56:43,143 INFO L280 TraceCheckUtils]: 28: Hoare triple {6474#(<= 1 |fibo2_#in~n|)} assume true; {6474#(<= 1 |fibo2_#in~n|)} is VALID [2020-07-10 14:56:43,144 INFO L275 TraceCheckUtils]: 29: Hoare quadruple {6474#(<= 1 |fibo2_#in~n|)} {6466#(<= fibo1_~n 2)} #59#return; {6322#false} is VALID [2020-07-10 14:56:43,144 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 [2020-07-10 14:56:43,144 INFO L280 TraceCheckUtils]: 31: Hoare triple {6322#false} assume true; {6322#false} is VALID [2020-07-10 14:56:43,145 INFO L275 TraceCheckUtils]: 32: Hoare quadruple {6322#false} {6321#true} #53#return; {6322#false} is VALID [2020-07-10 14:56:43,145 INFO L280 TraceCheckUtils]: 33: Hoare triple {6322#false} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {6322#false} is VALID [2020-07-10 14:56:43,145 INFO L263 TraceCheckUtils]: 34: Hoare triple {6322#false} call #t~ret3 := fibo1(~n - 2); {6321#true} is VALID [2020-07-10 14:56:43,145 INFO L280 TraceCheckUtils]: 35: Hoare triple {6321#true} ~n := #in~n; {6321#true} is VALID [2020-07-10 14:56:43,145 INFO L280 TraceCheckUtils]: 36: Hoare triple {6321#true} assume !(~n < 1); {6321#true} is VALID [2020-07-10 14:56:43,145 INFO L280 TraceCheckUtils]: 37: Hoare triple {6321#true} assume 1 == ~n;#res := 1; {6321#true} is VALID [2020-07-10 14:56:43,146 INFO L280 TraceCheckUtils]: 38: Hoare triple {6321#true} assume true; {6321#true} is VALID [2020-07-10 14:56:43,146 INFO L275 TraceCheckUtils]: 39: Hoare quadruple {6321#true} {6322#false} #55#return; {6322#false} is VALID [2020-07-10 14:56:43,146 INFO L280 TraceCheckUtils]: 40: Hoare triple {6322#false} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647;#res := #t~ret2 + #t~ret3;havoc #t~ret2;havoc #t~ret3; {6322#false} is VALID [2020-07-10 14:56:43,146 INFO L280 TraceCheckUtils]: 41: Hoare triple {6322#false} assume true; {6322#false} is VALID [2020-07-10 14:56:43,146 INFO L275 TraceCheckUtils]: 42: Hoare quadruple {6322#false} {6321#true} #57#return; {6322#false} is VALID [2020-07-10 14:56:43,146 INFO L280 TraceCheckUtils]: 43: Hoare triple {6322#false} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {6322#false} is VALID [2020-07-10 14:56:43,146 INFO L263 TraceCheckUtils]: 44: Hoare triple {6322#false} call #t~ret1 := fibo2(~n - 2); {6321#true} is VALID [2020-07-10 14:56:43,147 INFO L280 TraceCheckUtils]: 45: Hoare triple {6321#true} ~n := #in~n; {6321#true} is VALID [2020-07-10 14:56:43,147 INFO L280 TraceCheckUtils]: 46: Hoare triple {6321#true} assume !(~n < 1); {6321#true} is VALID [2020-07-10 14:56:43,147 INFO L280 TraceCheckUtils]: 47: Hoare triple {6321#true} assume !(1 == ~n); {6321#true} is VALID [2020-07-10 14:56:43,147 INFO L263 TraceCheckUtils]: 48: Hoare triple {6321#true} call #t~ret2 := fibo1(~n - 1); {6321#true} is VALID [2020-07-10 14:56:43,147 INFO L280 TraceCheckUtils]: 49: Hoare triple {6321#true} ~n := #in~n; {6321#true} is VALID [2020-07-10 14:56:43,147 INFO L280 TraceCheckUtils]: 50: Hoare triple {6321#true} assume !(~n < 1); {6321#true} is VALID [2020-07-10 14:56:43,147 INFO L280 TraceCheckUtils]: 51: Hoare triple {6321#true} assume 1 == ~n;#res := 1; {6321#true} is VALID [2020-07-10 14:56:43,147 INFO L280 TraceCheckUtils]: 52: Hoare triple {6321#true} assume true; {6321#true} is VALID [2020-07-10 14:56:43,148 INFO L275 TraceCheckUtils]: 53: Hoare quadruple {6321#true} {6321#true} #53#return; {6321#true} is VALID [2020-07-10 14:56:43,148 INFO L280 TraceCheckUtils]: 54: Hoare triple {6321#true} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {6321#true} is VALID [2020-07-10 14:56:43,148 INFO L263 TraceCheckUtils]: 55: Hoare triple {6321#true} call #t~ret3 := fibo1(~n - 2); {6321#true} is VALID [2020-07-10 14:56:43,148 INFO L280 TraceCheckUtils]: 56: Hoare triple {6321#true} ~n := #in~n; {6321#true} is VALID [2020-07-10 14:56:43,148 INFO L280 TraceCheckUtils]: 57: Hoare triple {6321#true} assume ~n < 1;#res := 0; {6321#true} is VALID [2020-07-10 14:56:43,148 INFO L280 TraceCheckUtils]: 58: Hoare triple {6321#true} assume true; {6321#true} is VALID [2020-07-10 14:56:43,148 INFO L275 TraceCheckUtils]: 59: Hoare quadruple {6321#true} {6321#true} #55#return; {6321#true} is VALID [2020-07-10 14:56:43,148 INFO L280 TraceCheckUtils]: 60: Hoare triple {6321#true} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647;#res := #t~ret2 + #t~ret3;havoc #t~ret2;havoc #t~ret3; {6321#true} is VALID [2020-07-10 14:56:43,148 INFO L280 TraceCheckUtils]: 61: Hoare triple {6321#true} assume true; {6321#true} is VALID [2020-07-10 14:56:43,149 INFO L275 TraceCheckUtils]: 62: Hoare quadruple {6321#true} {6322#false} #59#return; {6322#false} is VALID [2020-07-10 14:56:43,149 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 [2020-07-10 14:56:43,149 INFO L280 TraceCheckUtils]: 64: Hoare triple {6322#false} assume true; {6322#false} is VALID [2020-07-10 14:56:43,149 INFO L275 TraceCheckUtils]: 65: Hoare quadruple {6322#false} {6325#(<= main_~x~0 4)} #51#return; {6322#false} is VALID [2020-07-10 14:56:43,149 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 [2020-07-10 14:56:43,149 INFO L280 TraceCheckUtils]: 67: Hoare triple {6322#false} assume 3 != ~result~0; {6322#false} is VALID [2020-07-10 14:56:43,149 INFO L280 TraceCheckUtils]: 68: Hoare triple {6322#false} assume !false; {6322#false} is VALID [2020-07-10 14:56:43,152 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 16 proven. 22 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2020-07-10 14:56:43,152 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778569221] [2020-07-10 14:56:43,152 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2017823168] [2020-07-10 14:56:43,152 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 [2020-07-10 14:56:43,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:56:43,188 INFO L264 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-10 14:56:43,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:56:43,203 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-10 14:56:43,389 INFO L263 TraceCheckUtils]: 0: Hoare triple {6321#true} call ULTIMATE.init(); {6321#true} is VALID [2020-07-10 14:56:43,389 INFO L280 TraceCheckUtils]: 1: Hoare triple {6321#true} assume true; {6321#true} is VALID [2020-07-10 14:56:43,389 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {6321#true} {6321#true} #47#return; {6321#true} is VALID [2020-07-10 14:56:43,390 INFO L263 TraceCheckUtils]: 3: Hoare triple {6321#true} call #t~ret5 := main(); {6321#true} is VALID [2020-07-10 14:56:43,390 INFO L280 TraceCheckUtils]: 4: Hoare triple {6321#true} ~x~0 := 4; {6325#(<= main_~x~0 4)} is VALID [2020-07-10 14:56:43,390 INFO L263 TraceCheckUtils]: 5: Hoare triple {6325#(<= main_~x~0 4)} call #t~ret4 := fibo1(~x~0); {6321#true} is VALID [2020-07-10 14:56:43,391 INFO L280 TraceCheckUtils]: 6: Hoare triple {6321#true} ~n := #in~n; {6505#(<= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-10 14:56:43,391 INFO L280 TraceCheckUtils]: 7: Hoare triple {6505#(<= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {6505#(<= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-10 14:56:43,392 INFO L280 TraceCheckUtils]: 8: Hoare triple {6505#(<= fibo1_~n |fibo1_#in~n|)} assume !(1 == ~n); {6505#(<= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-10 14:56:43,392 INFO L263 TraceCheckUtils]: 9: Hoare triple {6505#(<= fibo1_~n |fibo1_#in~n|)} call #t~ret0 := fibo2(~n - 1); {6321#true} is VALID [2020-07-10 14:56:43,393 INFO L280 TraceCheckUtils]: 10: Hoare triple {6321#true} ~n := #in~n; {6518#(<= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-10 14:56:43,393 INFO L280 TraceCheckUtils]: 11: Hoare triple {6518#(<= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {6518#(<= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-10 14:56:43,394 INFO L280 TraceCheckUtils]: 12: Hoare triple {6518#(<= fibo2_~n |fibo2_#in~n|)} assume !(1 == ~n); {6518#(<= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-10 14:56:43,394 INFO L263 TraceCheckUtils]: 13: Hoare triple {6518#(<= fibo2_~n |fibo2_#in~n|)} call #t~ret2 := fibo1(~n - 1); {6321#true} is VALID [2020-07-10 14:56:43,394 INFO L280 TraceCheckUtils]: 14: Hoare triple {6321#true} ~n := #in~n; {6505#(<= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-10 14:56:43,395 INFO L280 TraceCheckUtils]: 15: Hoare triple {6505#(<= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {6505#(<= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-10 14:56:43,395 INFO L280 TraceCheckUtils]: 16: Hoare triple {6505#(<= fibo1_~n |fibo1_#in~n|)} assume !(1 == ~n); {6505#(<= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-10 14:56:43,395 INFO L263 TraceCheckUtils]: 17: Hoare triple {6505#(<= fibo1_~n |fibo1_#in~n|)} call #t~ret0 := fibo2(~n - 1); {6321#true} is VALID [2020-07-10 14:56:43,396 INFO L280 TraceCheckUtils]: 18: Hoare triple {6321#true} ~n := #in~n; {6321#true} is VALID [2020-07-10 14:56:43,396 INFO L280 TraceCheckUtils]: 19: Hoare triple {6321#true} assume !(~n < 1); {6321#true} is VALID [2020-07-10 14:56:43,396 INFO L280 TraceCheckUtils]: 20: Hoare triple {6321#true} assume 1 == ~n;#res := 1; {6321#true} is VALID [2020-07-10 14:56:43,396 INFO L280 TraceCheckUtils]: 21: Hoare triple {6321#true} assume true; {6321#true} is VALID [2020-07-10 14:56:43,397 INFO L275 TraceCheckUtils]: 22: Hoare quadruple {6321#true} {6505#(<= fibo1_~n |fibo1_#in~n|)} #57#return; {6505#(<= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-10 14:56:43,397 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 [2020-07-10 14:56:43,398 INFO L263 TraceCheckUtils]: 24: Hoare triple {6505#(<= fibo1_~n |fibo1_#in~n|)} call #t~ret1 := fibo2(~n - 2); {6321#true} is VALID [2020-07-10 14:56:43,398 INFO L280 TraceCheckUtils]: 25: Hoare triple {6321#true} ~n := #in~n; {6518#(<= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-10 14:56:43,399 INFO L280 TraceCheckUtils]: 26: Hoare triple {6518#(<= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {6474#(<= 1 |fibo2_#in~n|)} is VALID [2020-07-10 14:56:43,399 INFO L280 TraceCheckUtils]: 27: Hoare triple {6474#(<= 1 |fibo2_#in~n|)} assume 1 == ~n;#res := 1; {6474#(<= 1 |fibo2_#in~n|)} is VALID [2020-07-10 14:56:43,400 INFO L280 TraceCheckUtils]: 28: Hoare triple {6474#(<= 1 |fibo2_#in~n|)} assume true; {6474#(<= 1 |fibo2_#in~n|)} is VALID [2020-07-10 14:56:43,405 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 [2020-07-10 14:56:43,406 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 [2020-07-10 14:56:43,406 INFO L280 TraceCheckUtils]: 31: Hoare triple {6576#(<= 3 |fibo1_#in~n|)} assume true; {6576#(<= 3 |fibo1_#in~n|)} is VALID [2020-07-10 14:56:43,407 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 [2020-07-10 14:56:43,408 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 [2020-07-10 14:56:43,408 INFO L263 TraceCheckUtils]: 34: Hoare triple {6586#(<= 4 |fibo2_#in~n|)} call #t~ret3 := fibo1(~n - 2); {6321#true} is VALID [2020-07-10 14:56:43,408 INFO L280 TraceCheckUtils]: 35: Hoare triple {6321#true} ~n := #in~n; {6321#true} is VALID [2020-07-10 14:56:43,408 INFO L280 TraceCheckUtils]: 36: Hoare triple {6321#true} assume !(~n < 1); {6321#true} is VALID [2020-07-10 14:56:43,409 INFO L280 TraceCheckUtils]: 37: Hoare triple {6321#true} assume 1 == ~n;#res := 1; {6321#true} is VALID [2020-07-10 14:56:43,409 INFO L280 TraceCheckUtils]: 38: Hoare triple {6321#true} assume true; {6321#true} is VALID [2020-07-10 14:56:43,409 INFO L275 TraceCheckUtils]: 39: Hoare quadruple {6321#true} {6586#(<= 4 |fibo2_#in~n|)} #55#return; {6586#(<= 4 |fibo2_#in~n|)} is VALID [2020-07-10 14:56:43,410 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~ret2;havoc #t~ret3; {6586#(<= 4 |fibo2_#in~n|)} is VALID [2020-07-10 14:56:43,410 INFO L280 TraceCheckUtils]: 41: Hoare triple {6586#(<= 4 |fibo2_#in~n|)} assume true; {6586#(<= 4 |fibo2_#in~n|)} is VALID [2020-07-10 14:56:43,411 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 [2020-07-10 14:56:43,412 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 [2020-07-10 14:56:43,412 INFO L263 TraceCheckUtils]: 44: Hoare triple {6617#(<= 5 |fibo1_#in~n|)} call #t~ret1 := fibo2(~n - 2); {6321#true} is VALID [2020-07-10 14:56:43,412 INFO L280 TraceCheckUtils]: 45: Hoare triple {6321#true} ~n := #in~n; {6321#true} is VALID [2020-07-10 14:56:43,412 INFO L280 TraceCheckUtils]: 46: Hoare triple {6321#true} assume !(~n < 1); {6321#true} is VALID [2020-07-10 14:56:43,413 INFO L280 TraceCheckUtils]: 47: Hoare triple {6321#true} assume !(1 == ~n); {6321#true} is VALID [2020-07-10 14:56:43,413 INFO L263 TraceCheckUtils]: 48: Hoare triple {6321#true} call #t~ret2 := fibo1(~n - 1); {6321#true} is VALID [2020-07-10 14:56:43,413 INFO L280 TraceCheckUtils]: 49: Hoare triple {6321#true} ~n := #in~n; {6321#true} is VALID [2020-07-10 14:56:43,413 INFO L280 TraceCheckUtils]: 50: Hoare triple {6321#true} assume !(~n < 1); {6321#true} is VALID [2020-07-10 14:56:43,413 INFO L280 TraceCheckUtils]: 51: Hoare triple {6321#true} assume 1 == ~n;#res := 1; {6321#true} is VALID [2020-07-10 14:56:43,413 INFO L280 TraceCheckUtils]: 52: Hoare triple {6321#true} assume true; {6321#true} is VALID [2020-07-10 14:56:43,414 INFO L275 TraceCheckUtils]: 53: Hoare quadruple {6321#true} {6321#true} #53#return; {6321#true} is VALID [2020-07-10 14:56:43,414 INFO L280 TraceCheckUtils]: 54: Hoare triple {6321#true} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {6321#true} is VALID [2020-07-10 14:56:43,414 INFO L263 TraceCheckUtils]: 55: Hoare triple {6321#true} call #t~ret3 := fibo1(~n - 2); {6321#true} is VALID [2020-07-10 14:56:43,414 INFO L280 TraceCheckUtils]: 56: Hoare triple {6321#true} ~n := #in~n; {6321#true} is VALID [2020-07-10 14:56:43,414 INFO L280 TraceCheckUtils]: 57: Hoare triple {6321#true} assume ~n < 1;#res := 0; {6321#true} is VALID [2020-07-10 14:56:43,415 INFO L280 TraceCheckUtils]: 58: Hoare triple {6321#true} assume true; {6321#true} is VALID [2020-07-10 14:56:43,415 INFO L275 TraceCheckUtils]: 59: Hoare quadruple {6321#true} {6321#true} #55#return; {6321#true} is VALID [2020-07-10 14:56:43,415 INFO L280 TraceCheckUtils]: 60: Hoare triple {6321#true} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647;#res := #t~ret2 + #t~ret3;havoc #t~ret2;havoc #t~ret3; {6321#true} is VALID [2020-07-10 14:56:43,415 INFO L280 TraceCheckUtils]: 61: Hoare triple {6321#true} assume true; {6321#true} is VALID [2020-07-10 14:56:43,416 INFO L275 TraceCheckUtils]: 62: Hoare quadruple {6321#true} {6617#(<= 5 |fibo1_#in~n|)} #59#return; {6617#(<= 5 |fibo1_#in~n|)} is VALID [2020-07-10 14:56:43,416 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 [2020-07-10 14:56:43,417 INFO L280 TraceCheckUtils]: 64: Hoare triple {6617#(<= 5 |fibo1_#in~n|)} assume true; {6617#(<= 5 |fibo1_#in~n|)} is VALID [2020-07-10 14:56:43,418 INFO L275 TraceCheckUtils]: 65: Hoare quadruple {6617#(<= 5 |fibo1_#in~n|)} {6325#(<= main_~x~0 4)} #51#return; {6322#false} is VALID [2020-07-10 14:56:43,418 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 [2020-07-10 14:56:43,418 INFO L280 TraceCheckUtils]: 67: Hoare triple {6322#false} assume 3 != ~result~0; {6322#false} is VALID [2020-07-10 14:56:43,418 INFO L280 TraceCheckUtils]: 68: Hoare triple {6322#false} assume !false; {6322#false} is VALID [2020-07-10 14:56:43,422 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 17 proven. 33 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2020-07-10 14:56:43,422 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-10 14:56:43,422 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9] total 12 [2020-07-10 14:56:43,423 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263813627] [2020-07-10 14:56:43,424 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 69 [2020-07-10 14:56:43,425 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 14:56:43,425 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 12 states. [2020-07-10 14:56:43,500 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 79 edges. 79 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 14:56:43,500 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-10 14:56:43,500 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-10 14:56:43,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-10 14:56:43,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-07-10 14:56:43,501 INFO L87 Difference]: Start difference. First operand 90 states and 122 transitions. Second operand 12 states. [2020-07-10 14:56:44,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 14:56:44,251 INFO L93 Difference]: Finished difference Result 162 states and 237 transitions. [2020-07-10 14:56:44,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-07-10 14:56:44,251 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 69 [2020-07-10 14:56:44,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 14:56:44,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-07-10 14:56:44,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 93 transitions. [2020-07-10 14:56:44,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-07-10 14:56:44,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 93 transitions. [2020-07-10 14:56:44,255 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 13 states and 93 transitions. [2020-07-10 14:56:44,365 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 93 edges. 93 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 14:56:44,366 INFO L225 Difference]: With dead ends: 162 [2020-07-10 14:56:44,366 INFO L226 Difference]: Without dead ends: 0 [2020-07-10 14:56:44,367 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 [2020-07-10 14:56:44,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-10 14:56:44,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-10 14:56:44,368 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 14:56:44,368 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2020-07-10 14:56:44,368 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-10 14:56:44,368 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-10 14:56:44,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 14:56:44,369 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-10 14:56:44,369 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-10 14:56:44,369 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 14:56:44,369 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 14:56:44,369 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-10 14:56:44,369 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-10 14:56:44,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 14:56:44,370 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-10 14:56:44,370 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-10 14:56:44,370 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 14:56:44,370 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 14:56:44,370 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 14:56:44,370 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 14:56:44,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-10 14:56:44,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-10 14:56:44,370 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 69 [2020-07-10 14:56:44,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 14:56:44,371 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-10 14:56:44,371 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-10 14:56:44,371 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-10 14:56:44,371 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 14:56:44,575 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-10 14:56:44,579 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-10 14:56:45,476 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 24 [2020-07-10 14:56:45,489 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-07-10 14:56:45,489 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-10 14:56:45,489 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-10 14:56:45,489 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-10 14:56:45,489 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-10 14:56:45,489 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-10 14:56:45,490 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 39) no Hoare annotation was computed. [2020-07-10 14:56:45,490 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 35 42) the Hoare annotation is: true [2020-07-10 14:56:45,490 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 35 42) no Hoare annotation was computed. [2020-07-10 14:56:45,490 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 35 42) no Hoare annotation was computed. [2020-07-10 14:56:45,490 INFO L268 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-07-10 14:56:45,490 INFO L268 CegarLoopResult]: For program point L38(lines 38 40) no Hoare annotation was computed. [2020-07-10 14:56:45,490 INFO L264 CegarLoopResult]: At program point L37(line 37) the Hoare annotation is: (and (<= 4 main_~x~0) (<= main_~x~0 4)) [2020-07-10 14:56:45,491 INFO L268 CegarLoopResult]: For program point L37-1(line 37) no Hoare annotation was computed. [2020-07-10 14:56:45,491 INFO L268 CegarLoopResult]: For program point L38-2(lines 38 40) no Hoare annotation was computed. [2020-07-10 14:56:45,491 INFO L271 CegarLoopResult]: At program point fibo2ENTRY(lines 17 25) the Hoare annotation is: true [2020-07-10 14:56:45,491 INFO L264 CegarLoopResult]: At program point L23(line 23) the Hoare annotation is: (and (not (<= |fibo2_#in~n| 1)) (= fibo2_~n |fibo2_#in~n|)) [2020-07-10 14:56:45,491 INFO L268 CegarLoopResult]: For program point L23-1(line 23) no Hoare annotation was computed. [2020-07-10 14:56:45,492 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|)) [2020-07-10 14:56:45,492 INFO L268 CegarLoopResult]: For program point L20(lines 20 24) no Hoare annotation was computed. [2020-07-10 14:56:45,492 INFO L268 CegarLoopResult]: For program point L23-3(line 23) no Hoare annotation was computed. [2020-07-10 14:56:45,492 INFO L268 CegarLoopResult]: For program point L18(lines 18 24) no Hoare annotation was computed. [2020-07-10 14:56:45,492 INFO L268 CegarLoopResult]: For program point fibo2FINAL(lines 17 25) no Hoare annotation was computed. [2020-07-10 14:56:45,492 INFO L268 CegarLoopResult]: For program point fibo2EXIT(lines 17 25) no Hoare annotation was computed. [2020-07-10 14:56:45,493 INFO L271 CegarLoopResult]: At program point fibo1ENTRY(lines 7 15) the Hoare annotation is: true [2020-07-10 14:56:45,493 INFO L264 CegarLoopResult]: At program point L13(line 13) the Hoare annotation is: (and (not (<= |fibo1_#in~n| 2)) (= fibo1_~n |fibo1_#in~n|)) [2020-07-10 14:56:45,493 INFO L268 CegarLoopResult]: For program point L13-1(line 13) no Hoare annotation was computed. [2020-07-10 14:56:45,493 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))) [2020-07-10 14:56:45,493 INFO L268 CegarLoopResult]: For program point fibo1FINAL(lines 7 15) no Hoare annotation was computed. [2020-07-10 14:56:45,493 INFO L268 CegarLoopResult]: For program point L10(lines 10 14) no Hoare annotation was computed. [2020-07-10 14:56:45,493 INFO L268 CegarLoopResult]: For program point L13-3(line 13) no Hoare annotation was computed. [2020-07-10 14:56:45,493 INFO L268 CegarLoopResult]: For program point L8(lines 8 14) no Hoare annotation was computed. [2020-07-10 14:56:45,493 INFO L268 CegarLoopResult]: For program point fibo1EXIT(lines 7 15) no Hoare annotation was computed. [2020-07-10 14:56:45,497 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-10 14:56:45,498 WARN L170 areAnnotationChecker]: L18 has no Hoare annotation [2020-07-10 14:56:45,499 WARN L170 areAnnotationChecker]: L8 has no Hoare annotation [2020-07-10 14:56:45,499 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-10 14:56:45,499 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-10 14:56:45,499 WARN L170 areAnnotationChecker]: L37-1 has no Hoare annotation [2020-07-10 14:56:45,499 WARN L170 areAnnotationChecker]: L18 has no Hoare annotation [2020-07-10 14:56:45,499 WARN L170 areAnnotationChecker]: L18 has no Hoare annotation [2020-07-10 14:56:45,499 WARN L170 areAnnotationChecker]: L8 has no Hoare annotation [2020-07-10 14:56:45,499 WARN L170 areAnnotationChecker]: L8 has no Hoare annotation [2020-07-10 14:56:45,499 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-10 14:56:45,500 WARN L170 areAnnotationChecker]: L37-1 has no Hoare annotation [2020-07-10 14:56:45,500 WARN L170 areAnnotationChecker]: fibo2FINAL has no Hoare annotation [2020-07-10 14:56:45,500 WARN L170 areAnnotationChecker]: L20 has no Hoare annotation [2020-07-10 14:56:45,500 WARN L170 areAnnotationChecker]: L20 has no Hoare annotation [2020-07-10 14:56:45,500 WARN L170 areAnnotationChecker]: fibo1FINAL has no Hoare annotation [2020-07-10 14:56:45,500 WARN L170 areAnnotationChecker]: L10 has no Hoare annotation [2020-07-10 14:56:45,500 WARN L170 areAnnotationChecker]: L10 has no Hoare annotation [2020-07-10 14:56:45,500 WARN L170 areAnnotationChecker]: L38 has no Hoare annotation [2020-07-10 14:56:45,500 WARN L170 areAnnotationChecker]: L38 has no Hoare annotation [2020-07-10 14:56:45,500 WARN L170 areAnnotationChecker]: fibo2EXIT has no Hoare annotation [2020-07-10 14:56:45,501 WARN L170 areAnnotationChecker]: fibo2EXIT has no Hoare annotation [2020-07-10 14:56:45,501 WARN L170 areAnnotationChecker]: L23-1 has no Hoare annotation [2020-07-10 14:56:45,501 WARN L170 areAnnotationChecker]: fibo1EXIT has no Hoare annotation [2020-07-10 14:56:45,501 WARN L170 areAnnotationChecker]: fibo1EXIT has no Hoare annotation [2020-07-10 14:56:45,501 WARN L170 areAnnotationChecker]: fibo1EXIT has no Hoare annotation [2020-07-10 14:56:45,501 WARN L170 areAnnotationChecker]: L13-1 has no Hoare annotation [2020-07-10 14:56:45,501 WARN L170 areAnnotationChecker]: L39 has no Hoare annotation [2020-07-10 14:56:45,501 WARN L170 areAnnotationChecker]: L39 has no Hoare annotation [2020-07-10 14:56:45,501 WARN L170 areAnnotationChecker]: L38-2 has no Hoare annotation [2020-07-10 14:56:45,502 WARN L170 areAnnotationChecker]: L13-1 has no Hoare annotation [2020-07-10 14:56:45,502 WARN L170 areAnnotationChecker]: L13-3 has no Hoare annotation [2020-07-10 14:56:45,502 WARN L170 areAnnotationChecker]: L23-1 has no Hoare annotation [2020-07-10 14:56:45,502 WARN L170 areAnnotationChecker]: L23-3 has no Hoare annotation [2020-07-10 14:56:45,502 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-10 14:56:45,502 WARN L170 areAnnotationChecker]: L13-3 has no Hoare annotation [2020-07-10 14:56:45,502 WARN L170 areAnnotationChecker]: L23-3 has no Hoare annotation [2020-07-10 14:56:45,502 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-10 14:56:45,502 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. [2020-07-10 14:56:45,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.07 02:56:45 BoogieIcfgContainer [2020-07-10 14:56:45,505 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-10 14:56:45,507 INFO L168 Benchmark]: Toolchain (without parser) took 22503.88 ms. Allocated memory was 139.5 MB in the beginning and 407.9 MB in the end (delta: 268.4 MB). Free memory was 103.3 MB in the beginning and 233.6 MB in the end (delta: -130.4 MB). Peak memory consumption was 138.1 MB. Max. memory is 7.1 GB. [2020-07-10 14:56:45,507 INFO L168 Benchmark]: CDTParser took 1.40 ms. Allocated memory is still 139.5 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-10 14:56:45,508 INFO L168 Benchmark]: CACSL2BoogieTranslator took 267.85 ms. Allocated memory is still 139.5 MB. Free memory was 103.1 MB in the beginning and 93.3 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2020-07-10 14:56:45,508 INFO L168 Benchmark]: Boogie Preprocessor took 115.60 ms. Allocated memory was 139.5 MB in the beginning and 203.4 MB in the end (delta: 64.0 MB). Free memory was 93.3 MB in the beginning and 182.3 MB in the end (delta: -89.0 MB). Peak memory consumption was 14.5 MB. Max. memory is 7.1 GB. [2020-07-10 14:56:45,509 INFO L168 Benchmark]: RCFGBuilder took 343.82 ms. Allocated memory is still 203.4 MB. Free memory was 182.3 MB in the beginning and 163.4 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 7.1 GB. [2020-07-10 14:56:45,509 INFO L168 Benchmark]: TraceAbstraction took 21770.64 ms. Allocated memory was 203.4 MB in the beginning and 407.9 MB in the end (delta: 204.5 MB). Free memory was 162.7 MB in the beginning and 233.6 MB in the end (delta: -70.9 MB). Peak memory consumption was 133.6 MB. Max. memory is 7.1 GB. [2020-07-10 14:56:45,512 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 1.40 ms. Allocated memory is still 139.5 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 267.85 ms. Allocated memory is still 139.5 MB. Free memory was 103.1 MB in the beginning and 93.3 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 115.60 ms. Allocated memory was 139.5 MB in the beginning and 203.4 MB in the end (delta: 64.0 MB). Free memory was 93.3 MB in the beginning and 182.3 MB in the end (delta: -89.0 MB). Peak memory consumption was 14.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 343.82 ms. Allocated memory is still 203.4 MB. Free memory was 182.3 MB in the beginning and 163.4 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 21770.64 ms. Allocated memory was 203.4 MB in the beginning and 407.9 MB in the end (delta: 204.5 MB). Free memory was 162.7 MB in the beginning and 233.6 MB in the end (delta: -70.9 MB). Peak memory consumption was 133.6 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: 20.7s, OverallIterations: 11, TraceHistogramMax: 5, AutomataDifference: 11.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 332 SDtfs, 364 SDslu, 2239 SDs, 0 SdLazy, 2281 SolverSat, 312 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 755 GetRequests, 587 SyntacticMatches, 5 SemanticMatches, 163 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 295 ImplicationChecksByTransitivity, 2.1s 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: 0.7s AutomataMinimizationTime, 11 MinimizatonAttempts, 73 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 404 PreInvPairs, 488 NumberOfFragments, 92 HoareAnnotationTreeSize, 404 FomulaSimplifications, 980 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 11 FomulaSimplificationsInter, 1066 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 4.7s 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...