/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 0.1.25-46f3038-m [2020-07-08 12:13:47,351 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-08 12:13:47,353 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-08 12:13:47,365 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-08 12:13:47,366 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-08 12:13:47,367 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-08 12:13:47,368 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-08 12:13:47,370 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-08 12:13:47,372 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-08 12:13:47,372 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-08 12:13:47,373 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-08 12:13:47,374 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-08 12:13:47,375 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-08 12:13:47,376 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-08 12:13:47,377 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-08 12:13:47,378 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-08 12:13:47,379 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-08 12:13:47,379 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-08 12:13:47,381 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-08 12:13:47,383 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-08 12:13:47,385 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-08 12:13:47,386 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-08 12:13:47,387 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-08 12:13:47,387 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-08 12:13:47,392 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-08 12:13:47,403 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-08 12:13:47,404 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-08 12:13:47,406 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-08 12:13:47,407 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 [2020-07-08 12:13:47,434 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-08 12:13:47,434 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-08 12:13:47,436 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-08 12:13:47,436 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-08 12:13:47,436 INFO L138 SettingsManager]: * Use SBE=true [2020-07-08 12:13:47,436 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-08 12:13:47,437 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-08 12:13:47,437 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-08 12:13:47,437 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-08 12:13:47,437 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-08 12:13:47,438 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-08 12:13:47,438 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-08 12:13:47,438 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-08 12:13:47,439 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-08 12:13:47,439 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-08 12:13:47,439 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-08 12:13:47,439 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-08 12:13:47,440 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-08 12:13:47,440 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-08 12:13:47,440 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-08 12:13:47,440 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-08 12:13:47,440 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-08 12:13:47,441 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-08 12:13:47,441 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-08 12:13:47,441 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-08 12:13:47,441 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-08 12:13:47,441 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-08 12:13:47,442 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-08 12:13:47,442 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-08 12:13:47,442 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-08 12:13:47,711 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-08 12:13:47,725 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-08 12:13:47,729 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-08 12:13:47,730 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-08 12:13:47,730 INFO L275 PluginConnector]: CDTParser initialized [2020-07-08 12:13:47,731 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/fibo_2calls_4-1.c [2020-07-08 12:13:47,804 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d03cfa4f/b27e9db5528c48dc994effd33ec8310f/FLAGabdc3e626 [2020-07-08 12:13:48,252 INFO L306 CDTParser]: Found 1 translation units. [2020-07-08 12:13:48,253 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/recursive-simple/fibo_2calls_4-1.c [2020-07-08 12:13:48,259 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d03cfa4f/b27e9db5528c48dc994effd33ec8310f/FLAGabdc3e626 [2020-07-08 12:13:48,692 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d03cfa4f/b27e9db5528c48dc994effd33ec8310f [2020-07-08 12:13:48,704 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-08 12:13:48,706 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-08 12:13:48,707 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-08 12:13:48,707 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-08 12:13:48,710 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-08 12:13:48,712 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.07 12:13:48" (1/1) ... [2020-07-08 12:13:48,715 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72a0559f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 12:13:48, skipping insertion in model container [2020-07-08 12:13:48,715 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.07 12:13:48" (1/1) ... [2020-07-08 12:13:48,722 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-08 12:13:48,738 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-08 12:13:48,939 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-08 12:13:48,943 INFO L203 MainTranslator]: Completed pre-run [2020-07-08 12:13:48,961 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-08 12:13:48,975 INFO L208 MainTranslator]: Completed translation [2020-07-08 12:13:48,976 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 12:13:48 WrapperNode [2020-07-08 12:13:48,976 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-08 12:13:48,977 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-08 12:13:48,977 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-08 12:13:48,977 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-08 12:13:48,987 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 12:13:48" (1/1) ... [2020-07-08 12:13:48,987 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 12:13:48" (1/1) ... [2020-07-08 12:13:49,077 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 12:13:48" (1/1) ... [2020-07-08 12:13:49,077 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 12:13:48" (1/1) ... [2020-07-08 12:13:49,083 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 12:13:48" (1/1) ... [2020-07-08 12:13:49,085 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 12:13:48" (1/1) ... [2020-07-08 12:13:49,086 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 12:13:48" (1/1) ... [2020-07-08 12:13:49,087 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-08 12:13:49,088 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-08 12:13:49,088 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-08 12:13:49,088 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-08 12:13:49,089 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 12:13:48" (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 [2020-07-08 12:13:49,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-08 12:13:49,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-08 12:13:49,152 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2020-07-08 12:13:49,153 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2020-07-08 12:13:49,153 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-08 12:13:49,153 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-08 12:13:49,153 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-08 12:13:49,153 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2020-07-08 12:13:49,153 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2020-07-08 12:13:49,153 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-08 12:13:49,154 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-08 12:13:49,154 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-08 12:13:49,445 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-08 12:13:49,446 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-08 12:13:49,450 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.07 12:13:49 BoogieIcfgContainer [2020-07-08 12:13:49,450 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-08 12:13:49,452 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-08 12:13:49,452 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-08 12:13:49,456 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-08 12:13:49,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.07 12:13:48" (1/3) ... [2020-07-08 12:13:49,457 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ce7f78e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.07 12:13:49, skipping insertion in model container [2020-07-08 12:13:49,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 12:13:48" (2/3) ... [2020-07-08 12:13:49,458 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ce7f78e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.07 12:13:49, skipping insertion in model container [2020-07-08 12:13:49,458 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.07 12:13:49" (3/3) ... [2020-07-08 12:13:49,460 INFO L109 eAbstractionObserver]: Analyzing ICFG fibo_2calls_4-1.c [2020-07-08 12:13:49,470 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-08 12:13:49,477 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-08 12:13:49,491 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-08 12:13:49,517 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-08 12:13:49,518 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-08 12:13:49,518 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-08 12:13:49,518 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-08 12:13:49,518 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-08 12:13:49,518 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-08 12:13:49,519 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-08 12:13:49,519 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-08 12:13:49,541 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2020-07-08 12:13:49,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-07-08 12:13:49,547 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 12:13:49,548 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 12:13:49,549 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 12:13:49,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 12:13:49,554 INFO L82 PathProgramCache]: Analyzing trace with hash 1464461757, now seen corresponding path program 1 times [2020-07-08 12:13:49,562 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-08 12:13:49,562 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2147190007] [2020-07-08 12:13:49,562 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 12:13:49,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:13:49,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:13:49,748 INFO L280 TraceCheckUtils]: 0: Hoare triple {36#true} assume true; {36#true} is VALID [2020-07-08 12:13:49,749 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {36#true} {36#true} #47#return; {36#true} is VALID [2020-07-08 12:13:49,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:13:49,811 INFO L280 TraceCheckUtils]: 0: Hoare triple {36#true} ~n := #in~n; {45#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 12:13:49,812 INFO L280 TraceCheckUtils]: 1: Hoare triple {45#(= fibo1_~n |fibo1_#in~n|)} assume ~n < 1;#res := 0; {46#(<= |fibo1_#in~n| 0)} is VALID [2020-07-08 12:13:49,813 INFO L280 TraceCheckUtils]: 2: Hoare triple {46#(<= |fibo1_#in~n| 0)} assume true; {46#(<= |fibo1_#in~n| 0)} is VALID [2020-07-08 12:13:49,816 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {46#(<= |fibo1_#in~n| 0)} {40#(<= 4 main_~x~0)} #51#return; {37#false} is VALID [2020-07-08 12:13:49,816 INFO L263 TraceCheckUtils]: 0: Hoare triple {36#true} call ULTIMATE.init(); {36#true} is VALID [2020-07-08 12:13:49,817 INFO L280 TraceCheckUtils]: 1: Hoare triple {36#true} assume true; {36#true} is VALID [2020-07-08 12:13:49,817 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {36#true} {36#true} #47#return; {36#true} is VALID [2020-07-08 12:13:49,818 INFO L263 TraceCheckUtils]: 3: Hoare triple {36#true} call #t~ret5 := main(); {36#true} is VALID [2020-07-08 12:13:49,819 INFO L280 TraceCheckUtils]: 4: Hoare triple {36#true} ~x~0 := 4; {40#(<= 4 main_~x~0)} is VALID [2020-07-08 12:13:49,819 INFO L263 TraceCheckUtils]: 5: Hoare triple {40#(<= 4 main_~x~0)} call #t~ret4 := fibo1(~x~0); {36#true} is VALID [2020-07-08 12:13:49,820 INFO L280 TraceCheckUtils]: 6: Hoare triple {36#true} ~n := #in~n; {45#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 12:13:49,821 INFO L280 TraceCheckUtils]: 7: Hoare triple {45#(= fibo1_~n |fibo1_#in~n|)} assume ~n < 1;#res := 0; {46#(<= |fibo1_#in~n| 0)} is VALID [2020-07-08 12:13:49,822 INFO L280 TraceCheckUtils]: 8: Hoare triple {46#(<= |fibo1_#in~n| 0)} assume true; {46#(<= |fibo1_#in~n| 0)} is VALID [2020-07-08 12:13:49,824 INFO L275 TraceCheckUtils]: 9: Hoare quadruple {46#(<= |fibo1_#in~n| 0)} {40#(<= 4 main_~x~0)} #51#return; {37#false} is VALID [2020-07-08 12:13:49,825 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 [2020-07-08 12:13:49,825 INFO L280 TraceCheckUtils]: 11: Hoare triple {37#false} assume 3 != ~result~0; {37#false} is VALID [2020-07-08 12:13:49,825 INFO L280 TraceCheckUtils]: 12: Hoare triple {37#false} assume !false; {37#false} is VALID [2020-07-08 12:13:49,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-08 12:13:49,828 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2147190007] [2020-07-08 12:13:49,829 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 12:13:49,829 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-08 12:13:49,830 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596864349] [2020-07-08 12:13:49,836 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-07-08 12:13:49,839 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 12:13:49,842 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-08 12:13:49,889 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 13 edges. 13 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 12:13:49,890 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-08 12:13:49,890 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-08 12:13:49,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-08 12:13:49,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-08 12:13:49,904 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 5 states. [2020-07-08 12:13:50,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 12:13:50,205 INFO L93 Difference]: Finished difference Result 44 states and 53 transitions. [2020-07-08 12:13:50,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-08 12:13:50,206 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-07-08 12:13:50,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 12:13:50,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-08 12:13:50,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 53 transitions. [2020-07-08 12:13:50,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-08 12:13:50,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 53 transitions. [2020-07-08 12:13:50,224 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 53 transitions. [2020-07-08 12:13:50,307 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 53 edges. 53 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 12:13:50,321 INFO L225 Difference]: With dead ends: 44 [2020-07-08 12:13:50,332 INFO L226 Difference]: Without dead ends: 30 [2020-07-08 12:13:50,336 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 [2020-07-08 12:13:50,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-07-08 12:13:50,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-07-08 12:13:50,386 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 12:13:50,387 INFO L82 GeneralOperation]: Start isEquivalent. First operand 30 states. Second operand 30 states. [2020-07-08 12:13:50,387 INFO L74 IsIncluded]: Start isIncluded. First operand 30 states. Second operand 30 states. [2020-07-08 12:13:50,388 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 30 states. [2020-07-08 12:13:50,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 12:13:50,395 INFO L93 Difference]: Finished difference Result 30 states and 37 transitions. [2020-07-08 12:13:50,395 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2020-07-08 12:13:50,396 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 12:13:50,397 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 12:13:50,397 INFO L74 IsIncluded]: Start isIncluded. First operand 30 states. Second operand 30 states. [2020-07-08 12:13:50,397 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 30 states. [2020-07-08 12:13:50,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 12:13:50,403 INFO L93 Difference]: Finished difference Result 30 states and 37 transitions. [2020-07-08 12:13:50,404 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2020-07-08 12:13:50,405 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 12:13:50,405 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 12:13:50,405 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 12:13:50,406 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 12:13:50,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-07-08 12:13:50,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 37 transitions. [2020-07-08 12:13:50,412 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 37 transitions. Word has length 13 [2020-07-08 12:13:50,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 12:13:50,412 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 37 transitions. [2020-07-08 12:13:50,413 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-08 12:13:50,413 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2020-07-08 12:13:50,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-07-08 12:13:50,414 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 12:13:50,414 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 12:13:50,414 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-08 12:13:50,415 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 12:13:50,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 12:13:50,415 INFO L82 PathProgramCache]: Analyzing trace with hash -1134800479, now seen corresponding path program 1 times [2020-07-08 12:13:50,415 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-08 12:13:50,416 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488812312] [2020-07-08 12:13:50,416 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 12:13:50,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:13:50,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:13:50,453 INFO L280 TraceCheckUtils]: 0: Hoare triple {207#true} assume true; {207#true} is VALID [2020-07-08 12:13:50,454 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {207#true} {207#true} #47#return; {207#true} is VALID [2020-07-08 12:13:50,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:13:50,485 INFO L280 TraceCheckUtils]: 0: Hoare triple {207#true} ~n := #in~n; {217#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 12:13:50,486 INFO L280 TraceCheckUtils]: 1: Hoare triple {217#(= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {217#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 12:13:50,487 INFO L280 TraceCheckUtils]: 2: Hoare triple {217#(= fibo1_~n |fibo1_#in~n|)} assume 1 == ~n;#res := 1; {218#(<= |fibo1_#in~n| 1)} is VALID [2020-07-08 12:13:50,487 INFO L280 TraceCheckUtils]: 3: Hoare triple {218#(<= |fibo1_#in~n| 1)} assume true; {218#(<= |fibo1_#in~n| 1)} is VALID [2020-07-08 12:13:50,489 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {218#(<= |fibo1_#in~n| 1)} {211#(<= 4 main_~x~0)} #51#return; {208#false} is VALID [2020-07-08 12:13:50,489 INFO L263 TraceCheckUtils]: 0: Hoare triple {207#true} call ULTIMATE.init(); {207#true} is VALID [2020-07-08 12:13:50,490 INFO L280 TraceCheckUtils]: 1: Hoare triple {207#true} assume true; {207#true} is VALID [2020-07-08 12:13:50,490 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {207#true} {207#true} #47#return; {207#true} is VALID [2020-07-08 12:13:50,490 INFO L263 TraceCheckUtils]: 3: Hoare triple {207#true} call #t~ret5 := main(); {207#true} is VALID [2020-07-08 12:13:50,491 INFO L280 TraceCheckUtils]: 4: Hoare triple {207#true} ~x~0 := 4; {211#(<= 4 main_~x~0)} is VALID [2020-07-08 12:13:50,492 INFO L263 TraceCheckUtils]: 5: Hoare triple {211#(<= 4 main_~x~0)} call #t~ret4 := fibo1(~x~0); {207#true} is VALID [2020-07-08 12:13:50,492 INFO L280 TraceCheckUtils]: 6: Hoare triple {207#true} ~n := #in~n; {217#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 12:13:50,493 INFO L280 TraceCheckUtils]: 7: Hoare triple {217#(= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {217#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 12:13:50,494 INFO L280 TraceCheckUtils]: 8: Hoare triple {217#(= fibo1_~n |fibo1_#in~n|)} assume 1 == ~n;#res := 1; {218#(<= |fibo1_#in~n| 1)} is VALID [2020-07-08 12:13:50,494 INFO L280 TraceCheckUtils]: 9: Hoare triple {218#(<= |fibo1_#in~n| 1)} assume true; {218#(<= |fibo1_#in~n| 1)} is VALID [2020-07-08 12:13:50,496 INFO L275 TraceCheckUtils]: 10: Hoare quadruple {218#(<= |fibo1_#in~n| 1)} {211#(<= 4 main_~x~0)} #51#return; {208#false} is VALID [2020-07-08 12:13:50,496 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 [2020-07-08 12:13:50,496 INFO L280 TraceCheckUtils]: 12: Hoare triple {208#false} assume 3 != ~result~0; {208#false} is VALID [2020-07-08 12:13:50,497 INFO L280 TraceCheckUtils]: 13: Hoare triple {208#false} assume !false; {208#false} is VALID [2020-07-08 12:13:50,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-08 12:13:50,498 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488812312] [2020-07-08 12:13:50,498 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 12:13:50,499 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-08 12:13:50,499 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59189913] [2020-07-08 12:13:50,501 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-07-08 12:13:50,501 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 12:13:50,501 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-08 12:13:50,517 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 14 edges. 14 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 12:13:50,518 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-08 12:13:50,518 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-08 12:13:50,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-08 12:13:50,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-08 12:13:50,519 INFO L87 Difference]: Start difference. First operand 30 states and 37 transitions. Second operand 5 states. [2020-07-08 12:13:50,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 12:13:50,695 INFO L93 Difference]: Finished difference Result 36 states and 44 transitions. [2020-07-08 12:13:50,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-08 12:13:50,695 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-07-08 12:13:50,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 12:13:50,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-08 12:13:50,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 41 transitions. [2020-07-08 12:13:50,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-08 12:13:50,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 41 transitions. [2020-07-08 12:13:50,702 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 41 transitions. [2020-07-08 12:13:50,762 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 41 edges. 41 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 12:13:50,765 INFO L225 Difference]: With dead ends: 36 [2020-07-08 12:13:50,765 INFO L226 Difference]: Without dead ends: 32 [2020-07-08 12:13:50,767 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 [2020-07-08 12:13:50,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-07-08 12:13:50,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 30. [2020-07-08 12:13:50,781 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 12:13:50,782 INFO L82 GeneralOperation]: Start isEquivalent. First operand 32 states. Second operand 30 states. [2020-07-08 12:13:50,782 INFO L74 IsIncluded]: Start isIncluded. First operand 32 states. Second operand 30 states. [2020-07-08 12:13:50,782 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 30 states. [2020-07-08 12:13:50,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 12:13:50,787 INFO L93 Difference]: Finished difference Result 32 states and 40 transitions. [2020-07-08 12:13:50,787 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 40 transitions. [2020-07-08 12:13:50,788 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 12:13:50,788 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 12:13:50,788 INFO L74 IsIncluded]: Start isIncluded. First operand 30 states. Second operand 32 states. [2020-07-08 12:13:50,789 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 32 states. [2020-07-08 12:13:50,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 12:13:50,793 INFO L93 Difference]: Finished difference Result 32 states and 40 transitions. [2020-07-08 12:13:50,793 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 40 transitions. [2020-07-08 12:13:50,794 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 12:13:50,794 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 12:13:50,794 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 12:13:50,795 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 12:13:50,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-07-08 12:13:50,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 37 transitions. [2020-07-08 12:13:50,799 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 37 transitions. Word has length 14 [2020-07-08 12:13:50,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 12:13:50,800 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 37 transitions. [2020-07-08 12:13:50,800 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-08 12:13:50,800 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2020-07-08 12:13:50,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-07-08 12:13:50,802 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 12:13:50,803 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] [2020-07-08 12:13:50,803 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-08 12:13:50,803 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 12:13:50,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 12:13:50,804 INFO L82 PathProgramCache]: Analyzing trace with hash -1592795560, now seen corresponding path program 1 times [2020-07-08 12:13:50,804 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-08 12:13:50,804 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088582114] [2020-07-08 12:13:50,805 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 12:13:50,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:13:50,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:13:50,851 INFO L280 TraceCheckUtils]: 0: Hoare triple {375#true} assume true; {375#true} is VALID [2020-07-08 12:13:50,852 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {375#true} {375#true} #47#return; {375#true} is VALID [2020-07-08 12:13:50,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:13:50,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:13:50,938 INFO L280 TraceCheckUtils]: 0: Hoare triple {375#true} ~n := #in~n; {407#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 12:13:50,939 INFO L280 TraceCheckUtils]: 1: Hoare triple {407#(= fibo2_~n |fibo2_#in~n|)} assume ~n < 1;#res := 0; {408#(<= |fibo2_#in~n| 0)} is VALID [2020-07-08 12:13:50,940 INFO L280 TraceCheckUtils]: 2: Hoare triple {408#(<= |fibo2_#in~n| 0)} assume true; {408#(<= |fibo2_#in~n| 0)} is VALID [2020-07-08 12:13:50,941 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {408#(<= |fibo2_#in~n| 0)} {398#(< 1 fibo1_~n)} #57#return; {376#false} is VALID [2020-07-08 12:13:50,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:13:50,948 INFO L280 TraceCheckUtils]: 0: Hoare triple {375#true} ~n := #in~n; {375#true} is VALID [2020-07-08 12:13:50,948 INFO L280 TraceCheckUtils]: 1: Hoare triple {375#true} assume ~n < 1;#res := 0; {375#true} is VALID [2020-07-08 12:13:50,948 INFO L280 TraceCheckUtils]: 2: Hoare triple {375#true} assume true; {375#true} is VALID [2020-07-08 12:13:50,949 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {375#true} {376#false} #59#return; {376#false} is VALID [2020-07-08 12:13:50,949 INFO L280 TraceCheckUtils]: 0: Hoare triple {375#true} ~n := #in~n; {375#true} is VALID [2020-07-08 12:13:50,950 INFO L280 TraceCheckUtils]: 1: Hoare triple {375#true} assume !(~n < 1); {397#(< 0 fibo1_~n)} is VALID [2020-07-08 12:13:50,951 INFO L280 TraceCheckUtils]: 2: Hoare triple {397#(< 0 fibo1_~n)} assume !(1 == ~n); {398#(< 1 fibo1_~n)} is VALID [2020-07-08 12:13:50,951 INFO L263 TraceCheckUtils]: 3: Hoare triple {398#(< 1 fibo1_~n)} call #t~ret0 := fibo2(~n - 1); {375#true} is VALID [2020-07-08 12:13:50,952 INFO L280 TraceCheckUtils]: 4: Hoare triple {375#true} ~n := #in~n; {407#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 12:13:50,953 INFO L280 TraceCheckUtils]: 5: Hoare triple {407#(= fibo2_~n |fibo2_#in~n|)} assume ~n < 1;#res := 0; {408#(<= |fibo2_#in~n| 0)} is VALID [2020-07-08 12:13:50,954 INFO L280 TraceCheckUtils]: 6: Hoare triple {408#(<= |fibo2_#in~n| 0)} assume true; {408#(<= |fibo2_#in~n| 0)} is VALID [2020-07-08 12:13:50,955 INFO L275 TraceCheckUtils]: 7: Hoare quadruple {408#(<= |fibo2_#in~n| 0)} {398#(< 1 fibo1_~n)} #57#return; {376#false} is VALID [2020-07-08 12:13:50,955 INFO L280 TraceCheckUtils]: 8: Hoare triple {376#false} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {376#false} is VALID [2020-07-08 12:13:50,956 INFO L263 TraceCheckUtils]: 9: Hoare triple {376#false} call #t~ret1 := fibo2(~n - 2); {375#true} is VALID [2020-07-08 12:13:50,956 INFO L280 TraceCheckUtils]: 10: Hoare triple {375#true} ~n := #in~n; {375#true} is VALID [2020-07-08 12:13:50,956 INFO L280 TraceCheckUtils]: 11: Hoare triple {375#true} assume ~n < 1;#res := 0; {375#true} is VALID [2020-07-08 12:13:50,957 INFO L280 TraceCheckUtils]: 12: Hoare triple {375#true} assume true; {375#true} is VALID [2020-07-08 12:13:50,957 INFO L275 TraceCheckUtils]: 13: Hoare quadruple {375#true} {376#false} #59#return; {376#false} is VALID [2020-07-08 12:13:50,957 INFO L280 TraceCheckUtils]: 14: Hoare triple {376#false} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647;#res := #t~ret0 + #t~ret1;havoc #t~ret0;havoc #t~ret1; {376#false} is VALID [2020-07-08 12:13:50,958 INFO L280 TraceCheckUtils]: 15: Hoare triple {376#false} assume true; {376#false} is VALID [2020-07-08 12:13:50,958 INFO L275 TraceCheckUtils]: 16: Hoare quadruple {376#false} {379#(<= 4 main_~x~0)} #51#return; {376#false} is VALID [2020-07-08 12:13:50,959 INFO L263 TraceCheckUtils]: 0: Hoare triple {375#true} call ULTIMATE.init(); {375#true} is VALID [2020-07-08 12:13:50,959 INFO L280 TraceCheckUtils]: 1: Hoare triple {375#true} assume true; {375#true} is VALID [2020-07-08 12:13:50,960 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {375#true} {375#true} #47#return; {375#true} is VALID [2020-07-08 12:13:50,960 INFO L263 TraceCheckUtils]: 3: Hoare triple {375#true} call #t~ret5 := main(); {375#true} is VALID [2020-07-08 12:13:50,961 INFO L280 TraceCheckUtils]: 4: Hoare triple {375#true} ~x~0 := 4; {379#(<= 4 main_~x~0)} is VALID [2020-07-08 12:13:50,961 INFO L263 TraceCheckUtils]: 5: Hoare triple {379#(<= 4 main_~x~0)} call #t~ret4 := fibo1(~x~0); {375#true} is VALID [2020-07-08 12:13:50,962 INFO L280 TraceCheckUtils]: 6: Hoare triple {375#true} ~n := #in~n; {375#true} is VALID [2020-07-08 12:13:50,963 INFO L280 TraceCheckUtils]: 7: Hoare triple {375#true} assume !(~n < 1); {397#(< 0 fibo1_~n)} is VALID [2020-07-08 12:13:50,964 INFO L280 TraceCheckUtils]: 8: Hoare triple {397#(< 0 fibo1_~n)} assume !(1 == ~n); {398#(< 1 fibo1_~n)} is VALID [2020-07-08 12:13:50,964 INFO L263 TraceCheckUtils]: 9: Hoare triple {398#(< 1 fibo1_~n)} call #t~ret0 := fibo2(~n - 1); {375#true} is VALID [2020-07-08 12:13:50,964 INFO L280 TraceCheckUtils]: 10: Hoare triple {375#true} ~n := #in~n; {407#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 12:13:50,966 INFO L280 TraceCheckUtils]: 11: Hoare triple {407#(= fibo2_~n |fibo2_#in~n|)} assume ~n < 1;#res := 0; {408#(<= |fibo2_#in~n| 0)} is VALID [2020-07-08 12:13:50,966 INFO L280 TraceCheckUtils]: 12: Hoare triple {408#(<= |fibo2_#in~n| 0)} assume true; {408#(<= |fibo2_#in~n| 0)} is VALID [2020-07-08 12:13:50,968 INFO L275 TraceCheckUtils]: 13: Hoare quadruple {408#(<= |fibo2_#in~n| 0)} {398#(< 1 fibo1_~n)} #57#return; {376#false} is VALID [2020-07-08 12:13:50,968 INFO L280 TraceCheckUtils]: 14: Hoare triple {376#false} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {376#false} is VALID [2020-07-08 12:13:50,968 INFO L263 TraceCheckUtils]: 15: Hoare triple {376#false} call #t~ret1 := fibo2(~n - 2); {375#true} is VALID [2020-07-08 12:13:50,969 INFO L280 TraceCheckUtils]: 16: Hoare triple {375#true} ~n := #in~n; {375#true} is VALID [2020-07-08 12:13:50,969 INFO L280 TraceCheckUtils]: 17: Hoare triple {375#true} assume ~n < 1;#res := 0; {375#true} is VALID [2020-07-08 12:13:50,969 INFO L280 TraceCheckUtils]: 18: Hoare triple {375#true} assume true; {375#true} is VALID [2020-07-08 12:13:50,970 INFO L275 TraceCheckUtils]: 19: Hoare quadruple {375#true} {376#false} #59#return; {376#false} is VALID [2020-07-08 12:13:50,970 INFO L280 TraceCheckUtils]: 20: Hoare triple {376#false} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647;#res := #t~ret0 + #t~ret1;havoc #t~ret0;havoc #t~ret1; {376#false} is VALID [2020-07-08 12:13:50,970 INFO L280 TraceCheckUtils]: 21: Hoare triple {376#false} assume true; {376#false} is VALID [2020-07-08 12:13:50,970 INFO L275 TraceCheckUtils]: 22: Hoare quadruple {376#false} {379#(<= 4 main_~x~0)} #51#return; {376#false} is VALID [2020-07-08 12:13:50,971 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 [2020-07-08 12:13:50,971 INFO L280 TraceCheckUtils]: 24: Hoare triple {376#false} assume 3 != ~result~0; {376#false} is VALID [2020-07-08 12:13:50,971 INFO L280 TraceCheckUtils]: 25: Hoare triple {376#false} assume !false; {376#false} is VALID [2020-07-08 12:13:50,973 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-08 12:13:50,973 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088582114] [2020-07-08 12:13:50,973 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [543775663] [2020-07-08 12:13:50,974 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 [2020-07-08 12:13:51,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:13:51,010 INFO L264 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-08 12:13:51,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:13:51,031 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-08 12:13:51,186 INFO L263 TraceCheckUtils]: 0: Hoare triple {375#true} call ULTIMATE.init(); {375#true} is VALID [2020-07-08 12:13:51,187 INFO L280 TraceCheckUtils]: 1: Hoare triple {375#true} assume true; {375#true} is VALID [2020-07-08 12:13:51,187 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {375#true} {375#true} #47#return; {375#true} is VALID [2020-07-08 12:13:51,187 INFO L263 TraceCheckUtils]: 3: Hoare triple {375#true} call #t~ret5 := main(); {375#true} is VALID [2020-07-08 12:13:51,188 INFO L280 TraceCheckUtils]: 4: Hoare triple {375#true} ~x~0 := 4; {379#(<= 4 main_~x~0)} is VALID [2020-07-08 12:13:51,189 INFO L263 TraceCheckUtils]: 5: Hoare triple {379#(<= 4 main_~x~0)} call #t~ret4 := fibo1(~x~0); {375#true} is VALID [2020-07-08 12:13:51,190 INFO L280 TraceCheckUtils]: 6: Hoare triple {375#true} ~n := #in~n; {430#(<= |fibo1_#in~n| fibo1_~n)} is VALID [2020-07-08 12:13:51,191 INFO L280 TraceCheckUtils]: 7: Hoare triple {430#(<= |fibo1_#in~n| fibo1_~n)} assume !(~n < 1); {430#(<= |fibo1_#in~n| fibo1_~n)} is VALID [2020-07-08 12:13:51,191 INFO L280 TraceCheckUtils]: 8: Hoare triple {430#(<= |fibo1_#in~n| fibo1_~n)} assume !(1 == ~n); {430#(<= |fibo1_#in~n| fibo1_~n)} is VALID [2020-07-08 12:13:51,192 INFO L263 TraceCheckUtils]: 9: Hoare triple {430#(<= |fibo1_#in~n| fibo1_~n)} call #t~ret0 := fibo2(~n - 1); {375#true} is VALID [2020-07-08 12:13:51,193 INFO L280 TraceCheckUtils]: 10: Hoare triple {375#true} ~n := #in~n; {443#(<= |fibo2_#in~n| fibo2_~n)} is VALID [2020-07-08 12:13:51,194 INFO L280 TraceCheckUtils]: 11: Hoare triple {443#(<= |fibo2_#in~n| fibo2_~n)} assume ~n < 1;#res := 0; {408#(<= |fibo2_#in~n| 0)} is VALID [2020-07-08 12:13:51,194 INFO L280 TraceCheckUtils]: 12: Hoare triple {408#(<= |fibo2_#in~n| 0)} assume true; {408#(<= |fibo2_#in~n| 0)} is VALID [2020-07-08 12:13:51,196 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 [2020-07-08 12:13:51,197 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 [2020-07-08 12:13:51,197 INFO L263 TraceCheckUtils]: 15: Hoare triple {453#(<= |fibo1_#in~n| 1)} call #t~ret1 := fibo2(~n - 2); {375#true} is VALID [2020-07-08 12:13:51,198 INFO L280 TraceCheckUtils]: 16: Hoare triple {375#true} ~n := #in~n; {375#true} is VALID [2020-07-08 12:13:51,198 INFO L280 TraceCheckUtils]: 17: Hoare triple {375#true} assume ~n < 1;#res := 0; {375#true} is VALID [2020-07-08 12:13:51,198 INFO L280 TraceCheckUtils]: 18: Hoare triple {375#true} assume true; {375#true} is VALID [2020-07-08 12:13:51,200 INFO L275 TraceCheckUtils]: 19: Hoare quadruple {375#true} {453#(<= |fibo1_#in~n| 1)} #59#return; {453#(<= |fibo1_#in~n| 1)} is VALID [2020-07-08 12:13:51,201 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~ret0;havoc #t~ret1; {453#(<= |fibo1_#in~n| 1)} is VALID [2020-07-08 12:13:51,201 INFO L280 TraceCheckUtils]: 21: Hoare triple {453#(<= |fibo1_#in~n| 1)} assume true; {453#(<= |fibo1_#in~n| 1)} is VALID [2020-07-08 12:13:51,203 INFO L275 TraceCheckUtils]: 22: Hoare quadruple {453#(<= |fibo1_#in~n| 1)} {379#(<= 4 main_~x~0)} #51#return; {376#false} is VALID [2020-07-08 12:13:51,203 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 [2020-07-08 12:13:51,204 INFO L280 TraceCheckUtils]: 24: Hoare triple {376#false} assume 3 != ~result~0; {376#false} is VALID [2020-07-08 12:13:51,204 INFO L280 TraceCheckUtils]: 25: Hoare triple {376#false} assume !false; {376#false} is VALID [2020-07-08 12:13:51,206 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-08 12:13:51,206 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-08 12:13:51,207 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2020-07-08 12:13:51,207 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946485852] [2020-07-08 12:13:51,208 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 26 [2020-07-08 12:13:51,209 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 12:13:51,209 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 10 states. [2020-07-08 12:13:51,270 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 39 edges. 39 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 12:13:51,270 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-08 12:13:51,271 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-08 12:13:51,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-08 12:13:51,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-07-08 12:13:51,272 INFO L87 Difference]: Start difference. First operand 30 states and 37 transitions. Second operand 10 states. [2020-07-08 12:13:51,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 12:13:51,834 INFO L93 Difference]: Finished difference Result 58 states and 78 transitions. [2020-07-08 12:13:51,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-08 12:13:51,834 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 26 [2020-07-08 12:13:51,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 12:13:51,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-07-08 12:13:51,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 75 transitions. [2020-07-08 12:13:51,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-07-08 12:13:51,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 75 transitions. [2020-07-08 12:13:51,843 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 10 states and 75 transitions. [2020-07-08 12:13:51,964 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 75 edges. 75 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 12:13:51,967 INFO L225 Difference]: With dead ends: 58 [2020-07-08 12:13:51,967 INFO L226 Difference]: Without dead ends: 34 [2020-07-08 12:13:51,968 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2020-07-08 12:13:51,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-07-08 12:13:51,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 32. [2020-07-08 12:13:51,986 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 12:13:51,986 INFO L82 GeneralOperation]: Start isEquivalent. First operand 34 states. Second operand 32 states. [2020-07-08 12:13:51,986 INFO L74 IsIncluded]: Start isIncluded. First operand 34 states. Second operand 32 states. [2020-07-08 12:13:51,987 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 32 states. [2020-07-08 12:13:51,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 12:13:51,990 INFO L93 Difference]: Finished difference Result 34 states and 42 transitions. [2020-07-08 12:13:51,990 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 42 transitions. [2020-07-08 12:13:51,991 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 12:13:51,991 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 12:13:51,992 INFO L74 IsIncluded]: Start isIncluded. First operand 32 states. Second operand 34 states. [2020-07-08 12:13:51,992 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 34 states. [2020-07-08 12:13:51,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 12:13:51,995 INFO L93 Difference]: Finished difference Result 34 states and 42 transitions. [2020-07-08 12:13:51,995 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 42 transitions. [2020-07-08 12:13:51,996 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 12:13:51,996 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 12:13:51,997 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 12:13:51,997 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 12:13:51,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-07-08 12:13:52,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 39 transitions. [2020-07-08 12:13:52,000 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 39 transitions. Word has length 26 [2020-07-08 12:13:52,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 12:13:52,001 INFO L479 AbstractCegarLoop]: Abstraction has 32 states and 39 transitions. [2020-07-08 12:13:52,001 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-08 12:13:52,001 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 39 transitions. [2020-07-08 12:13:52,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-07-08 12:13:52,002 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 12:13:52,003 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] [2020-07-08 12:13:52,216 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-07-08 12:13:52,217 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 12:13:52,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 12:13:52,218 INFO L82 PathProgramCache]: Analyzing trace with hash 746633022, now seen corresponding path program 1 times [2020-07-08 12:13:52,218 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-08 12:13:52,219 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678044327] [2020-07-08 12:13:52,219 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 12:13:52,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:13:52,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:13:52,285 INFO L280 TraceCheckUtils]: 0: Hoare triple {685#true} assume true; {685#true} is VALID [2020-07-08 12:13:52,285 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {685#true} {685#true} #47#return; {685#true} is VALID [2020-07-08 12:13:52,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:13:52,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:13:52,393 INFO L280 TraceCheckUtils]: 0: Hoare triple {685#true} ~n := #in~n; {720#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 12:13:52,394 INFO L280 TraceCheckUtils]: 1: Hoare triple {720#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {720#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 12:13:52,395 INFO L280 TraceCheckUtils]: 2: Hoare triple {720#(= fibo2_~n |fibo2_#in~n|)} assume 1 == ~n;#res := 1; {721#(<= |fibo2_#in~n| 1)} is VALID [2020-07-08 12:13:52,395 INFO L280 TraceCheckUtils]: 3: Hoare triple {721#(<= |fibo2_#in~n| 1)} assume true; {721#(<= |fibo2_#in~n| 1)} is VALID [2020-07-08 12:13:52,397 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {721#(<= |fibo2_#in~n| 1)} {708#(= fibo1_~n |fibo1_#in~n|)} #57#return; {714#(and (<= fibo1_~n 2) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 12:13:52,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:13:52,404 INFO L280 TraceCheckUtils]: 0: Hoare triple {685#true} ~n := #in~n; {685#true} is VALID [2020-07-08 12:13:52,405 INFO L280 TraceCheckUtils]: 1: Hoare triple {685#true} assume ~n < 1;#res := 0; {685#true} is VALID [2020-07-08 12:13:52,405 INFO L280 TraceCheckUtils]: 2: Hoare triple {685#true} assume true; {685#true} is VALID [2020-07-08 12:13:52,406 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {685#true} {714#(and (<= fibo1_~n 2) (= fibo1_~n |fibo1_#in~n|))} #59#return; {719#(<= |fibo1_#in~n| 2)} is VALID [2020-07-08 12:13:52,407 INFO L280 TraceCheckUtils]: 0: Hoare triple {685#true} ~n := #in~n; {708#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 12:13:52,408 INFO L280 TraceCheckUtils]: 1: Hoare triple {708#(= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {708#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 12:13:52,408 INFO L280 TraceCheckUtils]: 2: Hoare triple {708#(= fibo1_~n |fibo1_#in~n|)} assume !(1 == ~n); {708#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 12:13:52,408 INFO L263 TraceCheckUtils]: 3: Hoare triple {708#(= fibo1_~n |fibo1_#in~n|)} call #t~ret0 := fibo2(~n - 1); {685#true} is VALID [2020-07-08 12:13:52,409 INFO L280 TraceCheckUtils]: 4: Hoare triple {685#true} ~n := #in~n; {720#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 12:13:52,410 INFO L280 TraceCheckUtils]: 5: Hoare triple {720#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {720#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 12:13:52,410 INFO L280 TraceCheckUtils]: 6: Hoare triple {720#(= fibo2_~n |fibo2_#in~n|)} assume 1 == ~n;#res := 1; {721#(<= |fibo2_#in~n| 1)} is VALID [2020-07-08 12:13:52,411 INFO L280 TraceCheckUtils]: 7: Hoare triple {721#(<= |fibo2_#in~n| 1)} assume true; {721#(<= |fibo2_#in~n| 1)} is VALID [2020-07-08 12:13:52,412 INFO L275 TraceCheckUtils]: 8: Hoare quadruple {721#(<= |fibo2_#in~n| 1)} {708#(= fibo1_~n |fibo1_#in~n|)} #57#return; {714#(and (<= fibo1_~n 2) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 12:13:52,413 INFO L280 TraceCheckUtils]: 9: Hoare triple {714#(and (<= fibo1_~n 2) (= fibo1_~n |fibo1_#in~n|))} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {714#(and (<= fibo1_~n 2) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 12:13:52,414 INFO L263 TraceCheckUtils]: 10: Hoare triple {714#(and (<= fibo1_~n 2) (= fibo1_~n |fibo1_#in~n|))} call #t~ret1 := fibo2(~n - 2); {685#true} is VALID [2020-07-08 12:13:52,414 INFO L280 TraceCheckUtils]: 11: Hoare triple {685#true} ~n := #in~n; {685#true} is VALID [2020-07-08 12:13:52,414 INFO L280 TraceCheckUtils]: 12: Hoare triple {685#true} assume ~n < 1;#res := 0; {685#true} is VALID [2020-07-08 12:13:52,414 INFO L280 TraceCheckUtils]: 13: Hoare triple {685#true} assume true; {685#true} is VALID [2020-07-08 12:13:52,415 INFO L275 TraceCheckUtils]: 14: Hoare quadruple {685#true} {714#(and (<= fibo1_~n 2) (= fibo1_~n |fibo1_#in~n|))} #59#return; {719#(<= |fibo1_#in~n| 2)} is VALID [2020-07-08 12:13:52,416 INFO L280 TraceCheckUtils]: 15: Hoare triple {719#(<= |fibo1_#in~n| 2)} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647;#res := #t~ret0 + #t~ret1;havoc #t~ret0;havoc #t~ret1; {719#(<= |fibo1_#in~n| 2)} is VALID [2020-07-08 12:13:52,417 INFO L280 TraceCheckUtils]: 16: Hoare triple {719#(<= |fibo1_#in~n| 2)} assume true; {719#(<= |fibo1_#in~n| 2)} is VALID [2020-07-08 12:13:52,418 INFO L275 TraceCheckUtils]: 17: Hoare quadruple {719#(<= |fibo1_#in~n| 2)} {689#(<= 4 main_~x~0)} #51#return; {686#false} is VALID [2020-07-08 12:13:52,419 INFO L263 TraceCheckUtils]: 0: Hoare triple {685#true} call ULTIMATE.init(); {685#true} is VALID [2020-07-08 12:13:52,419 INFO L280 TraceCheckUtils]: 1: Hoare triple {685#true} assume true; {685#true} is VALID [2020-07-08 12:13:52,419 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {685#true} {685#true} #47#return; {685#true} is VALID [2020-07-08 12:13:52,419 INFO L263 TraceCheckUtils]: 3: Hoare triple {685#true} call #t~ret5 := main(); {685#true} is VALID [2020-07-08 12:13:52,420 INFO L280 TraceCheckUtils]: 4: Hoare triple {685#true} ~x~0 := 4; {689#(<= 4 main_~x~0)} is VALID [2020-07-08 12:13:52,420 INFO L263 TraceCheckUtils]: 5: Hoare triple {689#(<= 4 main_~x~0)} call #t~ret4 := fibo1(~x~0); {685#true} is VALID [2020-07-08 12:13:52,421 INFO L280 TraceCheckUtils]: 6: Hoare triple {685#true} ~n := #in~n; {708#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 12:13:52,422 INFO L280 TraceCheckUtils]: 7: Hoare triple {708#(= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {708#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 12:13:52,422 INFO L280 TraceCheckUtils]: 8: Hoare triple {708#(= fibo1_~n |fibo1_#in~n|)} assume !(1 == ~n); {708#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 12:13:52,422 INFO L263 TraceCheckUtils]: 9: Hoare triple {708#(= fibo1_~n |fibo1_#in~n|)} call #t~ret0 := fibo2(~n - 1); {685#true} is VALID [2020-07-08 12:13:52,423 INFO L280 TraceCheckUtils]: 10: Hoare triple {685#true} ~n := #in~n; {720#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 12:13:52,424 INFO L280 TraceCheckUtils]: 11: Hoare triple {720#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {720#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 12:13:52,425 INFO L280 TraceCheckUtils]: 12: Hoare triple {720#(= fibo2_~n |fibo2_#in~n|)} assume 1 == ~n;#res := 1; {721#(<= |fibo2_#in~n| 1)} is VALID [2020-07-08 12:13:52,425 INFO L280 TraceCheckUtils]: 13: Hoare triple {721#(<= |fibo2_#in~n| 1)} assume true; {721#(<= |fibo2_#in~n| 1)} is VALID [2020-07-08 12:13:52,427 INFO L275 TraceCheckUtils]: 14: Hoare quadruple {721#(<= |fibo2_#in~n| 1)} {708#(= fibo1_~n |fibo1_#in~n|)} #57#return; {714#(and (<= fibo1_~n 2) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 12:13:52,427 INFO L280 TraceCheckUtils]: 15: Hoare triple {714#(and (<= fibo1_~n 2) (= fibo1_~n |fibo1_#in~n|))} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {714#(and (<= fibo1_~n 2) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 12:13:52,428 INFO L263 TraceCheckUtils]: 16: Hoare triple {714#(and (<= fibo1_~n 2) (= fibo1_~n |fibo1_#in~n|))} call #t~ret1 := fibo2(~n - 2); {685#true} is VALID [2020-07-08 12:13:52,428 INFO L280 TraceCheckUtils]: 17: Hoare triple {685#true} ~n := #in~n; {685#true} is VALID [2020-07-08 12:13:52,428 INFO L280 TraceCheckUtils]: 18: Hoare triple {685#true} assume ~n < 1;#res := 0; {685#true} is VALID [2020-07-08 12:13:52,428 INFO L280 TraceCheckUtils]: 19: Hoare triple {685#true} assume true; {685#true} is VALID [2020-07-08 12:13:52,429 INFO L275 TraceCheckUtils]: 20: Hoare quadruple {685#true} {714#(and (<= fibo1_~n 2) (= fibo1_~n |fibo1_#in~n|))} #59#return; {719#(<= |fibo1_#in~n| 2)} is VALID [2020-07-08 12:13:52,430 INFO L280 TraceCheckUtils]: 21: Hoare triple {719#(<= |fibo1_#in~n| 2)} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647;#res := #t~ret0 + #t~ret1;havoc #t~ret0;havoc #t~ret1; {719#(<= |fibo1_#in~n| 2)} is VALID [2020-07-08 12:13:52,431 INFO L280 TraceCheckUtils]: 22: Hoare triple {719#(<= |fibo1_#in~n| 2)} assume true; {719#(<= |fibo1_#in~n| 2)} is VALID [2020-07-08 12:13:52,432 INFO L275 TraceCheckUtils]: 23: Hoare quadruple {719#(<= |fibo1_#in~n| 2)} {689#(<= 4 main_~x~0)} #51#return; {686#false} is VALID [2020-07-08 12:13:52,432 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 [2020-07-08 12:13:52,432 INFO L280 TraceCheckUtils]: 25: Hoare triple {686#false} assume 3 != ~result~0; {686#false} is VALID [2020-07-08 12:13:52,432 INFO L280 TraceCheckUtils]: 26: Hoare triple {686#false} assume !false; {686#false} is VALID [2020-07-08 12:13:52,434 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-08 12:13:52,434 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678044327] [2020-07-08 12:13:52,434 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [59618963] [2020-07-08 12:13:52,435 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 [2020-07-08 12:13:52,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:13:52,460 INFO L264 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-08 12:13:52,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:13:52,470 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-08 12:13:52,560 INFO L263 TraceCheckUtils]: 0: Hoare triple {685#true} call ULTIMATE.init(); {685#true} is VALID [2020-07-08 12:13:52,560 INFO L280 TraceCheckUtils]: 1: Hoare triple {685#true} assume true; {685#true} is VALID [2020-07-08 12:13:52,561 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {685#true} {685#true} #47#return; {685#true} is VALID [2020-07-08 12:13:52,561 INFO L263 TraceCheckUtils]: 3: Hoare triple {685#true} call #t~ret5 := main(); {685#true} is VALID [2020-07-08 12:13:52,562 INFO L280 TraceCheckUtils]: 4: Hoare triple {685#true} ~x~0 := 4; {689#(<= 4 main_~x~0)} is VALID [2020-07-08 12:13:52,562 INFO L263 TraceCheckUtils]: 5: Hoare triple {689#(<= 4 main_~x~0)} call #t~ret4 := fibo1(~x~0); {685#true} is VALID [2020-07-08 12:13:52,563 INFO L280 TraceCheckUtils]: 6: Hoare triple {685#true} ~n := #in~n; {743#(<= |fibo1_#in~n| fibo1_~n)} is VALID [2020-07-08 12:13:52,563 INFO L280 TraceCheckUtils]: 7: Hoare triple {743#(<= |fibo1_#in~n| fibo1_~n)} assume !(~n < 1); {743#(<= |fibo1_#in~n| fibo1_~n)} is VALID [2020-07-08 12:13:52,563 INFO L280 TraceCheckUtils]: 8: Hoare triple {743#(<= |fibo1_#in~n| fibo1_~n)} assume !(1 == ~n); {743#(<= |fibo1_#in~n| fibo1_~n)} is VALID [2020-07-08 12:13:52,564 INFO L263 TraceCheckUtils]: 9: Hoare triple {743#(<= |fibo1_#in~n| fibo1_~n)} call #t~ret0 := fibo2(~n - 1); {685#true} is VALID [2020-07-08 12:13:52,564 INFO L280 TraceCheckUtils]: 10: Hoare triple {685#true} ~n := #in~n; {756#(<= |fibo2_#in~n| fibo2_~n)} is VALID [2020-07-08 12:13:52,565 INFO L280 TraceCheckUtils]: 11: Hoare triple {756#(<= |fibo2_#in~n| fibo2_~n)} assume !(~n < 1); {756#(<= |fibo2_#in~n| fibo2_~n)} is VALID [2020-07-08 12:13:52,565 INFO L280 TraceCheckUtils]: 12: Hoare triple {756#(<= |fibo2_#in~n| fibo2_~n)} assume 1 == ~n;#res := 1; {721#(<= |fibo2_#in~n| 1)} is VALID [2020-07-08 12:13:52,569 INFO L280 TraceCheckUtils]: 13: Hoare triple {721#(<= |fibo2_#in~n| 1)} assume true; {721#(<= |fibo2_#in~n| 1)} is VALID [2020-07-08 12:13:52,571 INFO L275 TraceCheckUtils]: 14: Hoare quadruple {721#(<= |fibo2_#in~n| 1)} {743#(<= |fibo1_#in~n| fibo1_~n)} #57#return; {719#(<= |fibo1_#in~n| 2)} is VALID [2020-07-08 12:13:52,571 INFO L280 TraceCheckUtils]: 15: Hoare triple {719#(<= |fibo1_#in~n| 2)} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {719#(<= |fibo1_#in~n| 2)} is VALID [2020-07-08 12:13:52,572 INFO L263 TraceCheckUtils]: 16: Hoare triple {719#(<= |fibo1_#in~n| 2)} call #t~ret1 := fibo2(~n - 2); {685#true} is VALID [2020-07-08 12:13:52,572 INFO L280 TraceCheckUtils]: 17: Hoare triple {685#true} ~n := #in~n; {685#true} is VALID [2020-07-08 12:13:52,573 INFO L280 TraceCheckUtils]: 18: Hoare triple {685#true} assume ~n < 1;#res := 0; {685#true} is VALID [2020-07-08 12:13:52,573 INFO L280 TraceCheckUtils]: 19: Hoare triple {685#true} assume true; {685#true} is VALID [2020-07-08 12:13:52,574 INFO L275 TraceCheckUtils]: 20: Hoare quadruple {685#true} {719#(<= |fibo1_#in~n| 2)} #59#return; {719#(<= |fibo1_#in~n| 2)} is VALID [2020-07-08 12:13:52,575 INFO L280 TraceCheckUtils]: 21: Hoare triple {719#(<= |fibo1_#in~n| 2)} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647;#res := #t~ret0 + #t~ret1;havoc #t~ret0;havoc #t~ret1; {719#(<= |fibo1_#in~n| 2)} is VALID [2020-07-08 12:13:52,577 INFO L280 TraceCheckUtils]: 22: Hoare triple {719#(<= |fibo1_#in~n| 2)} assume true; {719#(<= |fibo1_#in~n| 2)} is VALID [2020-07-08 12:13:52,580 INFO L275 TraceCheckUtils]: 23: Hoare quadruple {719#(<= |fibo1_#in~n| 2)} {689#(<= 4 main_~x~0)} #51#return; {686#false} is VALID [2020-07-08 12:13:52,580 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 [2020-07-08 12:13:52,580 INFO L280 TraceCheckUtils]: 25: Hoare triple {686#false} assume 3 != ~result~0; {686#false} is VALID [2020-07-08 12:13:52,581 INFO L280 TraceCheckUtils]: 26: Hoare triple {686#false} assume !false; {686#false} is VALID [2020-07-08 12:13:52,582 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-08 12:13:52,582 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-08 12:13:52,582 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 10 [2020-07-08 12:13:52,583 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421726790] [2020-07-08 12:13:52,583 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 27 [2020-07-08 12:13:52,584 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 12:13:52,584 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 10 states. [2020-07-08 12:13:52,624 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 38 edges. 38 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 12:13:52,624 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-08 12:13:52,624 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-08 12:13:52,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-08 12:13:52,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-07-08 12:13:52,625 INFO L87 Difference]: Start difference. First operand 32 states and 39 transitions. Second operand 10 states. [2020-07-08 12:13:53,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 12:13:53,233 INFO L93 Difference]: Finished difference Result 54 states and 74 transitions. [2020-07-08 12:13:53,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-08 12:13:53,234 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 27 [2020-07-08 12:13:53,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 12:13:53,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-07-08 12:13:53,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 66 transitions. [2020-07-08 12:13:53,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-07-08 12:13:53,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 66 transitions. [2020-07-08 12:13:53,247 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states and 66 transitions. [2020-07-08 12:13:53,339 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 66 edges. 66 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 12:13:53,343 INFO L225 Difference]: With dead ends: 54 [2020-07-08 12:13:53,343 INFO L226 Difference]: Without dead ends: 50 [2020-07-08 12:13:53,344 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-07-08 12:13:53,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-07-08 12:13:53,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 48. [2020-07-08 12:13:53,382 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 12:13:53,382 INFO L82 GeneralOperation]: Start isEquivalent. First operand 50 states. Second operand 48 states. [2020-07-08 12:13:53,383 INFO L74 IsIncluded]: Start isIncluded. First operand 50 states. Second operand 48 states. [2020-07-08 12:13:53,383 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 48 states. [2020-07-08 12:13:53,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 12:13:53,388 INFO L93 Difference]: Finished difference Result 50 states and 70 transitions. [2020-07-08 12:13:53,388 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 70 transitions. [2020-07-08 12:13:53,389 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 12:13:53,389 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 12:13:53,390 INFO L74 IsIncluded]: Start isIncluded. First operand 48 states. Second operand 50 states. [2020-07-08 12:13:53,390 INFO L87 Difference]: Start difference. First operand 48 states. Second operand 50 states. [2020-07-08 12:13:53,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 12:13:53,394 INFO L93 Difference]: Finished difference Result 50 states and 70 transitions. [2020-07-08 12:13:53,394 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 70 transitions. [2020-07-08 12:13:53,395 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 12:13:53,395 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 12:13:53,396 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 12:13:53,396 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 12:13:53,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-07-08 12:13:53,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 65 transitions. [2020-07-08 12:13:53,399 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 65 transitions. Word has length 27 [2020-07-08 12:13:53,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 12:13:53,400 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 65 transitions. [2020-07-08 12:13:53,400 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-08 12:13:53,400 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 65 transitions. [2020-07-08 12:13:53,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-07-08 12:13:53,402 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 12:13:53,402 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] [2020-07-08 12:13:53,615 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-08 12:13:53,615 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 12:13:53,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 12:13:53,616 INFO L82 PathProgramCache]: Analyzing trace with hash 986908919, now seen corresponding path program 1 times [2020-07-08 12:13:53,616 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-08 12:13:53,617 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570947283] [2020-07-08 12:13:53,617 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 12:13:53,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:13:53,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:13:53,643 INFO L280 TraceCheckUtils]: 0: Hoare triple {1043#true} assume true; {1043#true} is VALID [2020-07-08 12:13:53,644 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {1043#true} {1043#true} #47#return; {1043#true} is VALID [2020-07-08 12:13:53,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:13:53,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:13:53,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:13:53,722 INFO L280 TraceCheckUtils]: 0: Hoare triple {1043#true} ~n := #in~n; {1108#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 12:13:53,723 INFO L280 TraceCheckUtils]: 1: Hoare triple {1108#(= fibo1_~n |fibo1_#in~n|)} assume ~n < 1;#res := 0; {1109#(<= |fibo1_#in~n| 0)} is VALID [2020-07-08 12:13:53,723 INFO L280 TraceCheckUtils]: 2: Hoare triple {1109#(<= |fibo1_#in~n| 0)} assume true; {1109#(<= |fibo1_#in~n| 0)} is VALID [2020-07-08 12:13:53,724 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {1109#(<= |fibo1_#in~n| 0)} {1099#(< 1 fibo2_~n)} #53#return; {1044#false} is VALID [2020-07-08 12:13:53,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:13:53,731 INFO L280 TraceCheckUtils]: 0: Hoare triple {1043#true} ~n := #in~n; {1043#true} is VALID [2020-07-08 12:13:53,731 INFO L280 TraceCheckUtils]: 1: Hoare triple {1043#true} assume ~n < 1;#res := 0; {1043#true} is VALID [2020-07-08 12:13:53,731 INFO L280 TraceCheckUtils]: 2: Hoare triple {1043#true} assume true; {1043#true} is VALID [2020-07-08 12:13:53,731 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {1043#true} {1044#false} #55#return; {1044#false} is VALID [2020-07-08 12:13:53,731 INFO L280 TraceCheckUtils]: 0: Hoare triple {1043#true} ~n := #in~n; {1043#true} is VALID [2020-07-08 12:13:53,732 INFO L280 TraceCheckUtils]: 1: Hoare triple {1043#true} assume !(~n < 1); {1098#(< 0 fibo2_~n)} is VALID [2020-07-08 12:13:53,733 INFO L280 TraceCheckUtils]: 2: Hoare triple {1098#(< 0 fibo2_~n)} assume !(1 == ~n); {1099#(< 1 fibo2_~n)} is VALID [2020-07-08 12:13:53,733 INFO L263 TraceCheckUtils]: 3: Hoare triple {1099#(< 1 fibo2_~n)} call #t~ret2 := fibo1(~n - 1); {1043#true} is VALID [2020-07-08 12:13:53,734 INFO L280 TraceCheckUtils]: 4: Hoare triple {1043#true} ~n := #in~n; {1108#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 12:13:53,734 INFO L280 TraceCheckUtils]: 5: Hoare triple {1108#(= fibo1_~n |fibo1_#in~n|)} assume ~n < 1;#res := 0; {1109#(<= |fibo1_#in~n| 0)} is VALID [2020-07-08 12:13:53,735 INFO L280 TraceCheckUtils]: 6: Hoare triple {1109#(<= |fibo1_#in~n| 0)} assume true; {1109#(<= |fibo1_#in~n| 0)} is VALID [2020-07-08 12:13:53,736 INFO L275 TraceCheckUtils]: 7: Hoare quadruple {1109#(<= |fibo1_#in~n| 0)} {1099#(< 1 fibo2_~n)} #53#return; {1044#false} is VALID [2020-07-08 12:13:53,736 INFO L280 TraceCheckUtils]: 8: Hoare triple {1044#false} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {1044#false} is VALID [2020-07-08 12:13:53,736 INFO L263 TraceCheckUtils]: 9: Hoare triple {1044#false} call #t~ret3 := fibo1(~n - 2); {1043#true} is VALID [2020-07-08 12:13:53,736 INFO L280 TraceCheckUtils]: 10: Hoare triple {1043#true} ~n := #in~n; {1043#true} is VALID [2020-07-08 12:13:53,736 INFO L280 TraceCheckUtils]: 11: Hoare triple {1043#true} assume ~n < 1;#res := 0; {1043#true} is VALID [2020-07-08 12:13:53,736 INFO L280 TraceCheckUtils]: 12: Hoare triple {1043#true} assume true; {1043#true} is VALID [2020-07-08 12:13:53,737 INFO L275 TraceCheckUtils]: 13: Hoare quadruple {1043#true} {1044#false} #55#return; {1044#false} is VALID [2020-07-08 12:13:53,737 INFO L280 TraceCheckUtils]: 14: Hoare triple {1044#false} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647;#res := #t~ret2 + #t~ret3;havoc #t~ret2;havoc #t~ret3; {1044#false} is VALID [2020-07-08 12:13:53,737 INFO L280 TraceCheckUtils]: 15: Hoare triple {1044#false} assume true; {1044#false} is VALID [2020-07-08 12:13:53,737 INFO L275 TraceCheckUtils]: 16: Hoare quadruple {1044#false} {1043#true} #57#return; {1044#false} is VALID [2020-07-08 12:13:53,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:13:53,748 INFO L280 TraceCheckUtils]: 0: Hoare triple {1043#true} ~n := #in~n; {1043#true} is VALID [2020-07-08 12:13:53,749 INFO L280 TraceCheckUtils]: 1: Hoare triple {1043#true} assume ~n < 1;#res := 0; {1043#true} is VALID [2020-07-08 12:13:53,749 INFO L280 TraceCheckUtils]: 2: Hoare triple {1043#true} assume true; {1043#true} is VALID [2020-07-08 12:13:53,749 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {1043#true} {1044#false} #59#return; {1044#false} is VALID [2020-07-08 12:13:53,749 INFO L280 TraceCheckUtils]: 0: Hoare triple {1043#true} ~n := #in~n; {1043#true} is VALID [2020-07-08 12:13:53,750 INFO L280 TraceCheckUtils]: 1: Hoare triple {1043#true} assume !(~n < 1); {1043#true} is VALID [2020-07-08 12:13:53,750 INFO L280 TraceCheckUtils]: 2: Hoare triple {1043#true} assume !(1 == ~n); {1043#true} is VALID [2020-07-08 12:13:53,750 INFO L263 TraceCheckUtils]: 3: Hoare triple {1043#true} call #t~ret0 := fibo2(~n - 1); {1043#true} is VALID [2020-07-08 12:13:53,750 INFO L280 TraceCheckUtils]: 4: Hoare triple {1043#true} ~n := #in~n; {1043#true} is VALID [2020-07-08 12:13:53,751 INFO L280 TraceCheckUtils]: 5: Hoare triple {1043#true} assume !(~n < 1); {1098#(< 0 fibo2_~n)} is VALID [2020-07-08 12:13:53,752 INFO L280 TraceCheckUtils]: 6: Hoare triple {1098#(< 0 fibo2_~n)} assume !(1 == ~n); {1099#(< 1 fibo2_~n)} is VALID [2020-07-08 12:13:53,752 INFO L263 TraceCheckUtils]: 7: Hoare triple {1099#(< 1 fibo2_~n)} call #t~ret2 := fibo1(~n - 1); {1043#true} is VALID [2020-07-08 12:13:53,753 INFO L280 TraceCheckUtils]: 8: Hoare triple {1043#true} ~n := #in~n; {1108#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 12:13:53,753 INFO L280 TraceCheckUtils]: 9: Hoare triple {1108#(= fibo1_~n |fibo1_#in~n|)} assume ~n < 1;#res := 0; {1109#(<= |fibo1_#in~n| 0)} is VALID [2020-07-08 12:13:53,754 INFO L280 TraceCheckUtils]: 10: Hoare triple {1109#(<= |fibo1_#in~n| 0)} assume true; {1109#(<= |fibo1_#in~n| 0)} is VALID [2020-07-08 12:13:53,754 INFO L275 TraceCheckUtils]: 11: Hoare quadruple {1109#(<= |fibo1_#in~n| 0)} {1099#(< 1 fibo2_~n)} #53#return; {1044#false} is VALID [2020-07-08 12:13:53,755 INFO L280 TraceCheckUtils]: 12: Hoare triple {1044#false} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {1044#false} is VALID [2020-07-08 12:13:53,755 INFO L263 TraceCheckUtils]: 13: Hoare triple {1044#false} call #t~ret3 := fibo1(~n - 2); {1043#true} is VALID [2020-07-08 12:13:53,755 INFO L280 TraceCheckUtils]: 14: Hoare triple {1043#true} ~n := #in~n; {1043#true} is VALID [2020-07-08 12:13:53,755 INFO L280 TraceCheckUtils]: 15: Hoare triple {1043#true} assume ~n < 1;#res := 0; {1043#true} is VALID [2020-07-08 12:13:53,755 INFO L280 TraceCheckUtils]: 16: Hoare triple {1043#true} assume true; {1043#true} is VALID [2020-07-08 12:13:53,756 INFO L275 TraceCheckUtils]: 17: Hoare quadruple {1043#true} {1044#false} #55#return; {1044#false} is VALID [2020-07-08 12:13:53,756 INFO L280 TraceCheckUtils]: 18: Hoare triple {1044#false} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647;#res := #t~ret2 + #t~ret3;havoc #t~ret2;havoc #t~ret3; {1044#false} is VALID [2020-07-08 12:13:53,756 INFO L280 TraceCheckUtils]: 19: Hoare triple {1044#false} assume true; {1044#false} is VALID [2020-07-08 12:13:53,756 INFO L275 TraceCheckUtils]: 20: Hoare quadruple {1044#false} {1043#true} #57#return; {1044#false} is VALID [2020-07-08 12:13:53,757 INFO L280 TraceCheckUtils]: 21: Hoare triple {1044#false} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {1044#false} is VALID [2020-07-08 12:13:53,757 INFO L263 TraceCheckUtils]: 22: Hoare triple {1044#false} call #t~ret1 := fibo2(~n - 2); {1043#true} is VALID [2020-07-08 12:13:53,757 INFO L280 TraceCheckUtils]: 23: Hoare triple {1043#true} ~n := #in~n; {1043#true} is VALID [2020-07-08 12:13:53,757 INFO L280 TraceCheckUtils]: 24: Hoare triple {1043#true} assume ~n < 1;#res := 0; {1043#true} is VALID [2020-07-08 12:13:53,758 INFO L280 TraceCheckUtils]: 25: Hoare triple {1043#true} assume true; {1043#true} is VALID [2020-07-08 12:13:53,758 INFO L275 TraceCheckUtils]: 26: Hoare quadruple {1043#true} {1044#false} #59#return; {1044#false} is VALID [2020-07-08 12:13:53,758 INFO L280 TraceCheckUtils]: 27: Hoare triple {1044#false} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647;#res := #t~ret0 + #t~ret1;havoc #t~ret0;havoc #t~ret1; {1044#false} is VALID [2020-07-08 12:13:53,758 INFO L280 TraceCheckUtils]: 28: Hoare triple {1044#false} assume true; {1044#false} is VALID [2020-07-08 12:13:53,759 INFO L275 TraceCheckUtils]: 29: Hoare quadruple {1044#false} {1043#true} #51#return; {1044#false} is VALID [2020-07-08 12:13:53,762 INFO L263 TraceCheckUtils]: 0: Hoare triple {1043#true} call ULTIMATE.init(); {1043#true} is VALID [2020-07-08 12:13:53,763 INFO L280 TraceCheckUtils]: 1: Hoare triple {1043#true} assume true; {1043#true} is VALID [2020-07-08 12:13:53,763 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {1043#true} {1043#true} #47#return; {1043#true} is VALID [2020-07-08 12:13:53,763 INFO L263 TraceCheckUtils]: 3: Hoare triple {1043#true} call #t~ret5 := main(); {1043#true} is VALID [2020-07-08 12:13:53,763 INFO L280 TraceCheckUtils]: 4: Hoare triple {1043#true} ~x~0 := 4; {1043#true} is VALID [2020-07-08 12:13:53,763 INFO L263 TraceCheckUtils]: 5: Hoare triple {1043#true} call #t~ret4 := fibo1(~x~0); {1043#true} is VALID [2020-07-08 12:13:53,763 INFO L280 TraceCheckUtils]: 6: Hoare triple {1043#true} ~n := #in~n; {1043#true} is VALID [2020-07-08 12:13:53,764 INFO L280 TraceCheckUtils]: 7: Hoare triple {1043#true} assume !(~n < 1); {1043#true} is VALID [2020-07-08 12:13:53,764 INFO L280 TraceCheckUtils]: 8: Hoare triple {1043#true} assume !(1 == ~n); {1043#true} is VALID [2020-07-08 12:13:53,764 INFO L263 TraceCheckUtils]: 9: Hoare triple {1043#true} call #t~ret0 := fibo2(~n - 1); {1043#true} is VALID [2020-07-08 12:13:53,764 INFO L280 TraceCheckUtils]: 10: Hoare triple {1043#true} ~n := #in~n; {1043#true} is VALID [2020-07-08 12:13:53,765 INFO L280 TraceCheckUtils]: 11: Hoare triple {1043#true} assume !(~n < 1); {1098#(< 0 fibo2_~n)} is VALID [2020-07-08 12:13:53,765 INFO L280 TraceCheckUtils]: 12: Hoare triple {1098#(< 0 fibo2_~n)} assume !(1 == ~n); {1099#(< 1 fibo2_~n)} is VALID [2020-07-08 12:13:53,766 INFO L263 TraceCheckUtils]: 13: Hoare triple {1099#(< 1 fibo2_~n)} call #t~ret2 := fibo1(~n - 1); {1043#true} is VALID [2020-07-08 12:13:53,766 INFO L280 TraceCheckUtils]: 14: Hoare triple {1043#true} ~n := #in~n; {1108#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 12:13:53,766 INFO L280 TraceCheckUtils]: 15: Hoare triple {1108#(= fibo1_~n |fibo1_#in~n|)} assume ~n < 1;#res := 0; {1109#(<= |fibo1_#in~n| 0)} is VALID [2020-07-08 12:13:53,767 INFO L280 TraceCheckUtils]: 16: Hoare triple {1109#(<= |fibo1_#in~n| 0)} assume true; {1109#(<= |fibo1_#in~n| 0)} is VALID [2020-07-08 12:13:53,773 INFO L275 TraceCheckUtils]: 17: Hoare quadruple {1109#(<= |fibo1_#in~n| 0)} {1099#(< 1 fibo2_~n)} #53#return; {1044#false} is VALID [2020-07-08 12:13:53,774 INFO L280 TraceCheckUtils]: 18: Hoare triple {1044#false} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {1044#false} is VALID [2020-07-08 12:13:53,774 INFO L263 TraceCheckUtils]: 19: Hoare triple {1044#false} call #t~ret3 := fibo1(~n - 2); {1043#true} is VALID [2020-07-08 12:13:53,774 INFO L280 TraceCheckUtils]: 20: Hoare triple {1043#true} ~n := #in~n; {1043#true} is VALID [2020-07-08 12:13:53,774 INFO L280 TraceCheckUtils]: 21: Hoare triple {1043#true} assume ~n < 1;#res := 0; {1043#true} is VALID [2020-07-08 12:13:53,774 INFO L280 TraceCheckUtils]: 22: Hoare triple {1043#true} assume true; {1043#true} is VALID [2020-07-08 12:13:53,775 INFO L275 TraceCheckUtils]: 23: Hoare quadruple {1043#true} {1044#false} #55#return; {1044#false} is VALID [2020-07-08 12:13:53,775 INFO L280 TraceCheckUtils]: 24: Hoare triple {1044#false} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647;#res := #t~ret2 + #t~ret3;havoc #t~ret2;havoc #t~ret3; {1044#false} is VALID [2020-07-08 12:13:53,775 INFO L280 TraceCheckUtils]: 25: Hoare triple {1044#false} assume true; {1044#false} is VALID [2020-07-08 12:13:53,775 INFO L275 TraceCheckUtils]: 26: Hoare quadruple {1044#false} {1043#true} #57#return; {1044#false} is VALID [2020-07-08 12:13:53,776 INFO L280 TraceCheckUtils]: 27: Hoare triple {1044#false} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {1044#false} is VALID [2020-07-08 12:13:53,776 INFO L263 TraceCheckUtils]: 28: Hoare triple {1044#false} call #t~ret1 := fibo2(~n - 2); {1043#true} is VALID [2020-07-08 12:13:53,776 INFO L280 TraceCheckUtils]: 29: Hoare triple {1043#true} ~n := #in~n; {1043#true} is VALID [2020-07-08 12:13:53,776 INFO L280 TraceCheckUtils]: 30: Hoare triple {1043#true} assume ~n < 1;#res := 0; {1043#true} is VALID [2020-07-08 12:13:53,776 INFO L280 TraceCheckUtils]: 31: Hoare triple {1043#true} assume true; {1043#true} is VALID [2020-07-08 12:13:53,776 INFO L275 TraceCheckUtils]: 32: Hoare quadruple {1043#true} {1044#false} #59#return; {1044#false} is VALID [2020-07-08 12:13:53,777 INFO L280 TraceCheckUtils]: 33: Hoare triple {1044#false} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647;#res := #t~ret0 + #t~ret1;havoc #t~ret0;havoc #t~ret1; {1044#false} is VALID [2020-07-08 12:13:53,777 INFO L280 TraceCheckUtils]: 34: Hoare triple {1044#false} assume true; {1044#false} is VALID [2020-07-08 12:13:53,777 INFO L275 TraceCheckUtils]: 35: Hoare quadruple {1044#false} {1043#true} #51#return; {1044#false} is VALID [2020-07-08 12:13:53,777 INFO L280 TraceCheckUtils]: 36: Hoare triple {1044#false} assume -2147483648 <= #t~ret4 && #t~ret4 <= 2147483647;~result~0 := #t~ret4;havoc #t~ret4; {1044#false} is VALID [2020-07-08 12:13:53,777 INFO L280 TraceCheckUtils]: 37: Hoare triple {1044#false} assume 3 != ~result~0; {1044#false} is VALID [2020-07-08 12:13:53,777 INFO L280 TraceCheckUtils]: 38: Hoare triple {1044#false} assume !false; {1044#false} is VALID [2020-07-08 12:13:53,778 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-07-08 12:13:53,779 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570947283] [2020-07-08 12:13:53,779 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1277157651] [2020-07-08 12:13:53,779 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 [2020-07-08 12:13:53,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:13:53,818 INFO L264 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-08 12:13:53,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:13:53,827 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-08 12:13:53,961 INFO L263 TraceCheckUtils]: 0: Hoare triple {1043#true} call ULTIMATE.init(); {1043#true} is VALID [2020-07-08 12:13:53,961 INFO L280 TraceCheckUtils]: 1: Hoare triple {1043#true} assume true; {1043#true} is VALID [2020-07-08 12:13:53,961 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {1043#true} {1043#true} #47#return; {1043#true} is VALID [2020-07-08 12:13:53,962 INFO L263 TraceCheckUtils]: 3: Hoare triple {1043#true} call #t~ret5 := main(); {1043#true} is VALID [2020-07-08 12:13:53,962 INFO L280 TraceCheckUtils]: 4: Hoare triple {1043#true} ~x~0 := 4; {1125#(<= 4 main_~x~0)} is VALID [2020-07-08 12:13:53,963 INFO L263 TraceCheckUtils]: 5: Hoare triple {1125#(<= 4 main_~x~0)} call #t~ret4 := fibo1(~x~0); {1043#true} is VALID [2020-07-08 12:13:53,963 INFO L280 TraceCheckUtils]: 6: Hoare triple {1043#true} ~n := #in~n; {1132#(<= |fibo1_#in~n| fibo1_~n)} is VALID [2020-07-08 12:13:53,964 INFO L280 TraceCheckUtils]: 7: Hoare triple {1132#(<= |fibo1_#in~n| fibo1_~n)} assume !(~n < 1); {1132#(<= |fibo1_#in~n| fibo1_~n)} is VALID [2020-07-08 12:13:53,964 INFO L280 TraceCheckUtils]: 8: Hoare triple {1132#(<= |fibo1_#in~n| fibo1_~n)} assume !(1 == ~n); {1132#(<= |fibo1_#in~n| fibo1_~n)} is VALID [2020-07-08 12:13:53,964 INFO L263 TraceCheckUtils]: 9: Hoare triple {1132#(<= |fibo1_#in~n| fibo1_~n)} call #t~ret0 := fibo2(~n - 1); {1043#true} is VALID [2020-07-08 12:13:53,965 INFO L280 TraceCheckUtils]: 10: Hoare triple {1043#true} ~n := #in~n; {1145#(<= |fibo2_#in~n| fibo2_~n)} is VALID [2020-07-08 12:13:53,970 INFO L280 TraceCheckUtils]: 11: Hoare triple {1145#(<= |fibo2_#in~n| fibo2_~n)} assume !(~n < 1); {1145#(<= |fibo2_#in~n| fibo2_~n)} is VALID [2020-07-08 12:13:53,972 INFO L280 TraceCheckUtils]: 12: Hoare triple {1145#(<= |fibo2_#in~n| fibo2_~n)} assume !(1 == ~n); {1145#(<= |fibo2_#in~n| fibo2_~n)} is VALID [2020-07-08 12:13:53,972 INFO L263 TraceCheckUtils]: 13: Hoare triple {1145#(<= |fibo2_#in~n| fibo2_~n)} call #t~ret2 := fibo1(~n - 1); {1043#true} is VALID [2020-07-08 12:13:53,972 INFO L280 TraceCheckUtils]: 14: Hoare triple {1043#true} ~n := #in~n; {1132#(<= |fibo1_#in~n| fibo1_~n)} is VALID [2020-07-08 12:13:53,973 INFO L280 TraceCheckUtils]: 15: Hoare triple {1132#(<= |fibo1_#in~n| fibo1_~n)} assume ~n < 1;#res := 0; {1109#(<= |fibo1_#in~n| 0)} is VALID [2020-07-08 12:13:53,973 INFO L280 TraceCheckUtils]: 16: Hoare triple {1109#(<= |fibo1_#in~n| 0)} assume true; {1109#(<= |fibo1_#in~n| 0)} is VALID [2020-07-08 12:13:53,975 INFO L275 TraceCheckUtils]: 17: Hoare quadruple {1109#(<= |fibo1_#in~n| 0)} {1145#(<= |fibo2_#in~n| fibo2_~n)} #53#return; {1167#(<= |fibo2_#in~n| 1)} is VALID [2020-07-08 12:13:53,975 INFO L280 TraceCheckUtils]: 18: Hoare triple {1167#(<= |fibo2_#in~n| 1)} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {1167#(<= |fibo2_#in~n| 1)} is VALID [2020-07-08 12:13:53,976 INFO L263 TraceCheckUtils]: 19: Hoare triple {1167#(<= |fibo2_#in~n| 1)} call #t~ret3 := fibo1(~n - 2); {1043#true} is VALID [2020-07-08 12:13:53,976 INFO L280 TraceCheckUtils]: 20: Hoare triple {1043#true} ~n := #in~n; {1043#true} is VALID [2020-07-08 12:13:53,976 INFO L280 TraceCheckUtils]: 21: Hoare triple {1043#true} assume ~n < 1;#res := 0; {1043#true} is VALID [2020-07-08 12:13:53,976 INFO L280 TraceCheckUtils]: 22: Hoare triple {1043#true} assume true; {1043#true} is VALID [2020-07-08 12:13:53,977 INFO L275 TraceCheckUtils]: 23: Hoare quadruple {1043#true} {1167#(<= |fibo2_#in~n| 1)} #55#return; {1167#(<= |fibo2_#in~n| 1)} is VALID [2020-07-08 12:13:53,977 INFO L280 TraceCheckUtils]: 24: Hoare triple {1167#(<= |fibo2_#in~n| 1)} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647;#res := #t~ret2 + #t~ret3;havoc #t~ret2;havoc #t~ret3; {1167#(<= |fibo2_#in~n| 1)} is VALID [2020-07-08 12:13:53,977 INFO L280 TraceCheckUtils]: 25: Hoare triple {1167#(<= |fibo2_#in~n| 1)} assume true; {1167#(<= |fibo2_#in~n| 1)} is VALID [2020-07-08 12:13:53,978 INFO L275 TraceCheckUtils]: 26: Hoare quadruple {1167#(<= |fibo2_#in~n| 1)} {1132#(<= |fibo1_#in~n| fibo1_~n)} #57#return; {1195#(<= |fibo1_#in~n| 2)} is VALID [2020-07-08 12:13:53,979 INFO L280 TraceCheckUtils]: 27: Hoare triple {1195#(<= |fibo1_#in~n| 2)} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {1195#(<= |fibo1_#in~n| 2)} is VALID [2020-07-08 12:13:53,979 INFO L263 TraceCheckUtils]: 28: Hoare triple {1195#(<= |fibo1_#in~n| 2)} call #t~ret1 := fibo2(~n - 2); {1043#true} is VALID [2020-07-08 12:13:53,979 INFO L280 TraceCheckUtils]: 29: Hoare triple {1043#true} ~n := #in~n; {1043#true} is VALID [2020-07-08 12:13:53,980 INFO L280 TraceCheckUtils]: 30: Hoare triple {1043#true} assume ~n < 1;#res := 0; {1043#true} is VALID [2020-07-08 12:13:53,980 INFO L280 TraceCheckUtils]: 31: Hoare triple {1043#true} assume true; {1043#true} is VALID [2020-07-08 12:13:53,982 INFO L275 TraceCheckUtils]: 32: Hoare quadruple {1043#true} {1195#(<= |fibo1_#in~n| 2)} #59#return; {1195#(<= |fibo1_#in~n| 2)} is VALID [2020-07-08 12:13:53,988 INFO L280 TraceCheckUtils]: 33: Hoare triple {1195#(<= |fibo1_#in~n| 2)} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647;#res := #t~ret0 + #t~ret1;havoc #t~ret0;havoc #t~ret1; {1195#(<= |fibo1_#in~n| 2)} is VALID [2020-07-08 12:13:53,988 INFO L280 TraceCheckUtils]: 34: Hoare triple {1195#(<= |fibo1_#in~n| 2)} assume true; {1195#(<= |fibo1_#in~n| 2)} is VALID [2020-07-08 12:13:53,989 INFO L275 TraceCheckUtils]: 35: Hoare quadruple {1195#(<= |fibo1_#in~n| 2)} {1125#(<= 4 main_~x~0)} #51#return; {1044#false} is VALID [2020-07-08 12:13:53,989 INFO L280 TraceCheckUtils]: 36: Hoare triple {1044#false} assume -2147483648 <= #t~ret4 && #t~ret4 <= 2147483647;~result~0 := #t~ret4;havoc #t~ret4; {1044#false} is VALID [2020-07-08 12:13:53,989 INFO L280 TraceCheckUtils]: 37: Hoare triple {1044#false} assume 3 != ~result~0; {1044#false} is VALID [2020-07-08 12:13:53,990 INFO L280 TraceCheckUtils]: 38: Hoare triple {1044#false} assume !false; {1044#false} is VALID [2020-07-08 12:13:53,992 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-08 12:13:53,993 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-08 12:13:53,993 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8] total 11 [2020-07-08 12:13:53,993 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012331703] [2020-07-08 12:13:53,994 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 39 [2020-07-08 12:13:53,996 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 12:13:53,996 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 11 states. [2020-07-08 12:13:54,063 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 61 edges. 61 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 12:13:54,063 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-08 12:13:54,064 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-08 12:13:54,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-08 12:13:54,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-07-08 12:13:54,065 INFO L87 Difference]: Start difference. First operand 48 states and 65 transitions. Second operand 11 states. [2020-07-08 12:13:54,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 12:13:54,964 INFO L93 Difference]: Finished difference Result 108 states and 170 transitions. [2020-07-08 12:13:54,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-07-08 12:13:54,965 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 39 [2020-07-08 12:13:54,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 12:13:54,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-07-08 12:13:54,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 102 transitions. [2020-07-08 12:13:54,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-07-08 12:13:54,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 102 transitions. [2020-07-08 12:13:54,973 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 13 states and 102 transitions. [2020-07-08 12:13:55,106 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 102 edges. 102 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 12:13:55,111 INFO L225 Difference]: With dead ends: 108 [2020-07-08 12:13:55,111 INFO L226 Difference]: Without dead ends: 66 [2020-07-08 12:13:55,113 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2020-07-08 12:13:55,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-07-08 12:13:55,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2020-07-08 12:13:55,143 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 12:13:55,143 INFO L82 GeneralOperation]: Start isEquivalent. First operand 66 states. Second operand 66 states. [2020-07-08 12:13:55,143 INFO L74 IsIncluded]: Start isIncluded. First operand 66 states. Second operand 66 states. [2020-07-08 12:13:55,143 INFO L87 Difference]: Start difference. First operand 66 states. Second operand 66 states. [2020-07-08 12:13:55,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 12:13:55,149 INFO L93 Difference]: Finished difference Result 66 states and 95 transitions. [2020-07-08 12:13:55,149 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 95 transitions. [2020-07-08 12:13:55,150 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 12:13:55,150 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 12:13:55,150 INFO L74 IsIncluded]: Start isIncluded. First operand 66 states. Second operand 66 states. [2020-07-08 12:13:55,150 INFO L87 Difference]: Start difference. First operand 66 states. Second operand 66 states. [2020-07-08 12:13:55,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 12:13:55,155 INFO L93 Difference]: Finished difference Result 66 states and 95 transitions. [2020-07-08 12:13:55,156 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 95 transitions. [2020-07-08 12:13:55,156 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 12:13:55,157 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 12:13:55,157 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 12:13:55,157 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 12:13:55,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-07-08 12:13:55,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 95 transitions. [2020-07-08 12:13:55,162 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 95 transitions. Word has length 39 [2020-07-08 12:13:55,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 12:13:55,162 INFO L479 AbstractCegarLoop]: Abstraction has 66 states and 95 transitions. [2020-07-08 12:13:55,162 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-08 12:13:55,162 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 95 transitions. [2020-07-08 12:13:55,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-07-08 12:13:55,164 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 12:13:55,164 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] [2020-07-08 12:13:55,376 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-08 12:13:55,377 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 12:13:55,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 12:13:55,377 INFO L82 PathProgramCache]: Analyzing trace with hash -2100495745, now seen corresponding path program 1 times [2020-07-08 12:13:55,377 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-08 12:13:55,378 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211069312] [2020-07-08 12:13:55,378 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 12:13:55,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:13:55,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:13:55,437 INFO L280 TraceCheckUtils]: 0: Hoare triple {1609#true} assume true; {1609#true} is VALID [2020-07-08 12:13:55,437 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {1609#true} {1609#true} #47#return; {1609#true} is VALID [2020-07-08 12:13:55,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:13:55,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:13:55,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:13:55,590 INFO L280 TraceCheckUtils]: 0: Hoare triple {1609#true} ~n := #in~n; {1609#true} is VALID [2020-07-08 12:13:55,591 INFO L280 TraceCheckUtils]: 1: Hoare triple {1609#true} assume !(~n < 1); {1609#true} is VALID [2020-07-08 12:13:55,591 INFO L280 TraceCheckUtils]: 2: Hoare triple {1609#true} assume 1 == ~n;#res := 1; {1609#true} is VALID [2020-07-08 12:13:55,591 INFO L280 TraceCheckUtils]: 3: Hoare triple {1609#true} assume true; {1609#true} is VALID [2020-07-08 12:13:55,592 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {1609#true} {1670#(and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} #53#return; {1670#(and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} is VALID [2020-07-08 12:13:55,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:13:55,599 INFO L280 TraceCheckUtils]: 0: Hoare triple {1609#true} ~n := #in~n; {1609#true} is VALID [2020-07-08 12:13:55,599 INFO L280 TraceCheckUtils]: 1: Hoare triple {1609#true} assume ~n < 1;#res := 0; {1609#true} is VALID [2020-07-08 12:13:55,599 INFO L280 TraceCheckUtils]: 2: Hoare triple {1609#true} assume true; {1609#true} is VALID [2020-07-08 12:13:55,603 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {1609#true} {1670#(and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} #55#return; {1680#(<= 2 |fibo2_#in~n|)} is VALID [2020-07-08 12:13:55,603 INFO L280 TraceCheckUtils]: 0: Hoare triple {1609#true} ~n := #in~n; {1668#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 12:13:55,604 INFO L280 TraceCheckUtils]: 1: Hoare triple {1668#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {1669#(and (< 0 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} is VALID [2020-07-08 12:13:55,605 INFO L280 TraceCheckUtils]: 2: Hoare triple {1669#(and (< 0 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} assume !(1 == ~n); {1670#(and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} is VALID [2020-07-08 12:13:55,605 INFO L263 TraceCheckUtils]: 3: Hoare triple {1670#(and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} call #t~ret2 := fibo1(~n - 1); {1609#true} is VALID [2020-07-08 12:13:55,605 INFO L280 TraceCheckUtils]: 4: Hoare triple {1609#true} ~n := #in~n; {1609#true} is VALID [2020-07-08 12:13:55,605 INFO L280 TraceCheckUtils]: 5: Hoare triple {1609#true} assume !(~n < 1); {1609#true} is VALID [2020-07-08 12:13:55,605 INFO L280 TraceCheckUtils]: 6: Hoare triple {1609#true} assume 1 == ~n;#res := 1; {1609#true} is VALID [2020-07-08 12:13:55,606 INFO L280 TraceCheckUtils]: 7: Hoare triple {1609#true} assume true; {1609#true} is VALID [2020-07-08 12:13:55,606 INFO L275 TraceCheckUtils]: 8: Hoare quadruple {1609#true} {1670#(and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} #53#return; {1670#(and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} is VALID [2020-07-08 12:13:55,608 INFO L280 TraceCheckUtils]: 9: Hoare triple {1670#(and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {1670#(and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} is VALID [2020-07-08 12:13:55,608 INFO L263 TraceCheckUtils]: 10: Hoare triple {1670#(and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} call #t~ret3 := fibo1(~n - 2); {1609#true} is VALID [2020-07-08 12:13:55,608 INFO L280 TraceCheckUtils]: 11: Hoare triple {1609#true} ~n := #in~n; {1609#true} is VALID [2020-07-08 12:13:55,608 INFO L280 TraceCheckUtils]: 12: Hoare triple {1609#true} assume ~n < 1;#res := 0; {1609#true} is VALID [2020-07-08 12:13:55,609 INFO L280 TraceCheckUtils]: 13: Hoare triple {1609#true} assume true; {1609#true} is VALID [2020-07-08 12:13:55,610 INFO L275 TraceCheckUtils]: 14: Hoare quadruple {1609#true} {1670#(and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} #55#return; {1680#(<= 2 |fibo2_#in~n|)} is VALID [2020-07-08 12:13:55,611 INFO L280 TraceCheckUtils]: 15: Hoare triple {1680#(<= 2 |fibo2_#in~n|)} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647;#res := #t~ret2 + #t~ret3;havoc #t~ret2;havoc #t~ret3; {1680#(<= 2 |fibo2_#in~n|)} is VALID [2020-07-08 12:13:55,613 INFO L280 TraceCheckUtils]: 16: Hoare triple {1680#(<= 2 |fibo2_#in~n|)} assume true; {1680#(<= 2 |fibo2_#in~n|)} is VALID [2020-07-08 12:13:55,617 INFO L275 TraceCheckUtils]: 17: Hoare quadruple {1680#(<= 2 |fibo2_#in~n|)} {1609#true} #57#return; {1663#(<= 3 fibo1_~n)} is VALID [2020-07-08 12:13:55,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:13:55,635 INFO L280 TraceCheckUtils]: 0: Hoare triple {1609#true} ~n := #in~n; {1668#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 12:13:55,636 INFO L280 TraceCheckUtils]: 1: Hoare triple {1668#(= fibo2_~n |fibo2_#in~n|)} assume ~n < 1;#res := 0; {1681#(<= |fibo2_#in~n| 0)} is VALID [2020-07-08 12:13:55,637 INFO L280 TraceCheckUtils]: 2: Hoare triple {1681#(<= |fibo2_#in~n| 0)} assume true; {1681#(<= |fibo2_#in~n| 0)} is VALID [2020-07-08 12:13:55,638 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {1681#(<= |fibo2_#in~n| 0)} {1663#(<= 3 fibo1_~n)} #59#return; {1610#false} is VALID [2020-07-08 12:13:55,638 INFO L280 TraceCheckUtils]: 0: Hoare triple {1609#true} ~n := #in~n; {1609#true} is VALID [2020-07-08 12:13:55,638 INFO L280 TraceCheckUtils]: 1: Hoare triple {1609#true} assume !(~n < 1); {1609#true} is VALID [2020-07-08 12:13:55,639 INFO L280 TraceCheckUtils]: 2: Hoare triple {1609#true} assume !(1 == ~n); {1609#true} is VALID [2020-07-08 12:13:55,639 INFO L263 TraceCheckUtils]: 3: Hoare triple {1609#true} call #t~ret0 := fibo2(~n - 1); {1609#true} is VALID [2020-07-08 12:13:55,639 INFO L280 TraceCheckUtils]: 4: Hoare triple {1609#true} ~n := #in~n; {1668#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 12:13:55,640 INFO L280 TraceCheckUtils]: 5: Hoare triple {1668#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {1669#(and (< 0 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} is VALID [2020-07-08 12:13:55,641 INFO L280 TraceCheckUtils]: 6: Hoare triple {1669#(and (< 0 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} assume !(1 == ~n); {1670#(and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} is VALID [2020-07-08 12:13:55,641 INFO L263 TraceCheckUtils]: 7: Hoare triple {1670#(and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} call #t~ret2 := fibo1(~n - 1); {1609#true} is VALID [2020-07-08 12:13:55,641 INFO L280 TraceCheckUtils]: 8: Hoare triple {1609#true} ~n := #in~n; {1609#true} is VALID [2020-07-08 12:13:55,642 INFO L280 TraceCheckUtils]: 9: Hoare triple {1609#true} assume !(~n < 1); {1609#true} is VALID [2020-07-08 12:13:55,642 INFO L280 TraceCheckUtils]: 10: Hoare triple {1609#true} assume 1 == ~n;#res := 1; {1609#true} is VALID [2020-07-08 12:13:55,642 INFO L280 TraceCheckUtils]: 11: Hoare triple {1609#true} assume true; {1609#true} is VALID [2020-07-08 12:13:55,643 INFO L275 TraceCheckUtils]: 12: Hoare quadruple {1609#true} {1670#(and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} #53#return; {1670#(and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} is VALID [2020-07-08 12:13:55,644 INFO L280 TraceCheckUtils]: 13: Hoare triple {1670#(and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {1670#(and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} is VALID [2020-07-08 12:13:55,644 INFO L263 TraceCheckUtils]: 14: Hoare triple {1670#(and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} call #t~ret3 := fibo1(~n - 2); {1609#true} is VALID [2020-07-08 12:13:55,644 INFO L280 TraceCheckUtils]: 15: Hoare triple {1609#true} ~n := #in~n; {1609#true} is VALID [2020-07-08 12:13:55,645 INFO L280 TraceCheckUtils]: 16: Hoare triple {1609#true} assume ~n < 1;#res := 0; {1609#true} is VALID [2020-07-08 12:13:55,645 INFO L280 TraceCheckUtils]: 17: Hoare triple {1609#true} assume true; {1609#true} is VALID [2020-07-08 12:13:55,646 INFO L275 TraceCheckUtils]: 18: Hoare quadruple {1609#true} {1670#(and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} #55#return; {1680#(<= 2 |fibo2_#in~n|)} is VALID [2020-07-08 12:13:55,647 INFO L280 TraceCheckUtils]: 19: Hoare triple {1680#(<= 2 |fibo2_#in~n|)} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647;#res := #t~ret2 + #t~ret3;havoc #t~ret2;havoc #t~ret3; {1680#(<= 2 |fibo2_#in~n|)} is VALID [2020-07-08 12:13:55,647 INFO L280 TraceCheckUtils]: 20: Hoare triple {1680#(<= 2 |fibo2_#in~n|)} assume true; {1680#(<= 2 |fibo2_#in~n|)} is VALID [2020-07-08 12:13:55,648 INFO L275 TraceCheckUtils]: 21: Hoare quadruple {1680#(<= 2 |fibo2_#in~n|)} {1609#true} #57#return; {1663#(<= 3 fibo1_~n)} is VALID [2020-07-08 12:13:55,649 INFO L280 TraceCheckUtils]: 22: Hoare triple {1663#(<= 3 fibo1_~n)} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {1663#(<= 3 fibo1_~n)} is VALID [2020-07-08 12:13:55,649 INFO L263 TraceCheckUtils]: 23: Hoare triple {1663#(<= 3 fibo1_~n)} call #t~ret1 := fibo2(~n - 2); {1609#true} is VALID [2020-07-08 12:13:55,650 INFO L280 TraceCheckUtils]: 24: Hoare triple {1609#true} ~n := #in~n; {1668#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 12:13:55,650 INFO L280 TraceCheckUtils]: 25: Hoare triple {1668#(= fibo2_~n |fibo2_#in~n|)} assume ~n < 1;#res := 0; {1681#(<= |fibo2_#in~n| 0)} is VALID [2020-07-08 12:13:55,651 INFO L280 TraceCheckUtils]: 26: Hoare triple {1681#(<= |fibo2_#in~n| 0)} assume true; {1681#(<= |fibo2_#in~n| 0)} is VALID [2020-07-08 12:13:55,652 INFO L275 TraceCheckUtils]: 27: Hoare quadruple {1681#(<= |fibo2_#in~n| 0)} {1663#(<= 3 fibo1_~n)} #59#return; {1610#false} is VALID [2020-07-08 12:13:55,652 INFO L280 TraceCheckUtils]: 28: Hoare triple {1610#false} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647;#res := #t~ret0 + #t~ret1;havoc #t~ret0;havoc #t~ret1; {1610#false} is VALID [2020-07-08 12:13:55,652 INFO L280 TraceCheckUtils]: 29: Hoare triple {1610#false} assume true; {1610#false} is VALID [2020-07-08 12:13:55,653 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {1610#false} {1613#(<= 4 main_~x~0)} #51#return; {1610#false} is VALID [2020-07-08 12:13:55,654 INFO L263 TraceCheckUtils]: 0: Hoare triple {1609#true} call ULTIMATE.init(); {1609#true} is VALID [2020-07-08 12:13:55,654 INFO L280 TraceCheckUtils]: 1: Hoare triple {1609#true} assume true; {1609#true} is VALID [2020-07-08 12:13:55,654 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {1609#true} {1609#true} #47#return; {1609#true} is VALID [2020-07-08 12:13:55,654 INFO L263 TraceCheckUtils]: 3: Hoare triple {1609#true} call #t~ret5 := main(); {1609#true} is VALID [2020-07-08 12:13:55,655 INFO L280 TraceCheckUtils]: 4: Hoare triple {1609#true} ~x~0 := 4; {1613#(<= 4 main_~x~0)} is VALID [2020-07-08 12:13:55,655 INFO L263 TraceCheckUtils]: 5: Hoare triple {1613#(<= 4 main_~x~0)} call #t~ret4 := fibo1(~x~0); {1609#true} is VALID [2020-07-08 12:13:55,655 INFO L280 TraceCheckUtils]: 6: Hoare triple {1609#true} ~n := #in~n; {1609#true} is VALID [2020-07-08 12:13:55,656 INFO L280 TraceCheckUtils]: 7: Hoare triple {1609#true} assume !(~n < 1); {1609#true} is VALID [2020-07-08 12:13:55,656 INFO L280 TraceCheckUtils]: 8: Hoare triple {1609#true} assume !(1 == ~n); {1609#true} is VALID [2020-07-08 12:13:55,656 INFO L263 TraceCheckUtils]: 9: Hoare triple {1609#true} call #t~ret0 := fibo2(~n - 1); {1609#true} is VALID [2020-07-08 12:13:55,657 INFO L280 TraceCheckUtils]: 10: Hoare triple {1609#true} ~n := #in~n; {1668#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 12:13:55,657 INFO L280 TraceCheckUtils]: 11: Hoare triple {1668#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {1669#(and (< 0 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} is VALID [2020-07-08 12:13:55,658 INFO L280 TraceCheckUtils]: 12: Hoare triple {1669#(and (< 0 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} assume !(1 == ~n); {1670#(and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} is VALID [2020-07-08 12:13:55,658 INFO L263 TraceCheckUtils]: 13: Hoare triple {1670#(and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} call #t~ret2 := fibo1(~n - 1); {1609#true} is VALID [2020-07-08 12:13:55,659 INFO L280 TraceCheckUtils]: 14: Hoare triple {1609#true} ~n := #in~n; {1609#true} is VALID [2020-07-08 12:13:55,659 INFO L280 TraceCheckUtils]: 15: Hoare triple {1609#true} assume !(~n < 1); {1609#true} is VALID [2020-07-08 12:13:55,659 INFO L280 TraceCheckUtils]: 16: Hoare triple {1609#true} assume 1 == ~n;#res := 1; {1609#true} is VALID [2020-07-08 12:13:55,659 INFO L280 TraceCheckUtils]: 17: Hoare triple {1609#true} assume true; {1609#true} is VALID [2020-07-08 12:13:55,660 INFO L275 TraceCheckUtils]: 18: Hoare quadruple {1609#true} {1670#(and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} #53#return; {1670#(and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} is VALID [2020-07-08 12:13:55,661 INFO L280 TraceCheckUtils]: 19: Hoare triple {1670#(and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {1670#(and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} is VALID [2020-07-08 12:13:55,661 INFO L263 TraceCheckUtils]: 20: Hoare triple {1670#(and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} call #t~ret3 := fibo1(~n - 2); {1609#true} is VALID [2020-07-08 12:13:55,661 INFO L280 TraceCheckUtils]: 21: Hoare triple {1609#true} ~n := #in~n; {1609#true} is VALID [2020-07-08 12:13:55,661 INFO L280 TraceCheckUtils]: 22: Hoare triple {1609#true} assume ~n < 1;#res := 0; {1609#true} is VALID [2020-07-08 12:13:55,662 INFO L280 TraceCheckUtils]: 23: Hoare triple {1609#true} assume true; {1609#true} is VALID [2020-07-08 12:13:55,663 INFO L275 TraceCheckUtils]: 24: Hoare quadruple {1609#true} {1670#(and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} #55#return; {1680#(<= 2 |fibo2_#in~n|)} is VALID [2020-07-08 12:13:55,663 INFO L280 TraceCheckUtils]: 25: Hoare triple {1680#(<= 2 |fibo2_#in~n|)} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647;#res := #t~ret2 + #t~ret3;havoc #t~ret2;havoc #t~ret3; {1680#(<= 2 |fibo2_#in~n|)} is VALID [2020-07-08 12:13:55,664 INFO L280 TraceCheckUtils]: 26: Hoare triple {1680#(<= 2 |fibo2_#in~n|)} assume true; {1680#(<= 2 |fibo2_#in~n|)} is VALID [2020-07-08 12:13:55,665 INFO L275 TraceCheckUtils]: 27: Hoare quadruple {1680#(<= 2 |fibo2_#in~n|)} {1609#true} #57#return; {1663#(<= 3 fibo1_~n)} is VALID [2020-07-08 12:13:55,665 INFO L280 TraceCheckUtils]: 28: Hoare triple {1663#(<= 3 fibo1_~n)} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {1663#(<= 3 fibo1_~n)} is VALID [2020-07-08 12:13:55,666 INFO L263 TraceCheckUtils]: 29: Hoare triple {1663#(<= 3 fibo1_~n)} call #t~ret1 := fibo2(~n - 2); {1609#true} is VALID [2020-07-08 12:13:55,667 INFO L280 TraceCheckUtils]: 30: Hoare triple {1609#true} ~n := #in~n; {1668#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 12:13:55,667 INFO L280 TraceCheckUtils]: 31: Hoare triple {1668#(= fibo2_~n |fibo2_#in~n|)} assume ~n < 1;#res := 0; {1681#(<= |fibo2_#in~n| 0)} is VALID [2020-07-08 12:13:55,668 INFO L280 TraceCheckUtils]: 32: Hoare triple {1681#(<= |fibo2_#in~n| 0)} assume true; {1681#(<= |fibo2_#in~n| 0)} is VALID [2020-07-08 12:13:55,669 INFO L275 TraceCheckUtils]: 33: Hoare quadruple {1681#(<= |fibo2_#in~n| 0)} {1663#(<= 3 fibo1_~n)} #59#return; {1610#false} is VALID [2020-07-08 12:13:55,670 INFO L280 TraceCheckUtils]: 34: Hoare triple {1610#false} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647;#res := #t~ret0 + #t~ret1;havoc #t~ret0;havoc #t~ret1; {1610#false} is VALID [2020-07-08 12:13:55,670 INFO L280 TraceCheckUtils]: 35: Hoare triple {1610#false} assume true; {1610#false} is VALID [2020-07-08 12:13:55,670 INFO L275 TraceCheckUtils]: 36: Hoare quadruple {1610#false} {1613#(<= 4 main_~x~0)} #51#return; {1610#false} is VALID [2020-07-08 12:13:55,671 INFO L280 TraceCheckUtils]: 37: Hoare triple {1610#false} assume -2147483648 <= #t~ret4 && #t~ret4 <= 2147483647;~result~0 := #t~ret4;havoc #t~ret4; {1610#false} is VALID [2020-07-08 12:13:55,671 INFO L280 TraceCheckUtils]: 38: Hoare triple {1610#false} assume 3 != ~result~0; {1610#false} is VALID [2020-07-08 12:13:55,671 INFO L280 TraceCheckUtils]: 39: Hoare triple {1610#false} assume !false; {1610#false} is VALID [2020-07-08 12:13:55,674 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-07-08 12:13:55,674 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211069312] [2020-07-08 12:13:55,674 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1651357569] [2020-07-08 12:13:55,675 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 [2020-07-08 12:13:55,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:13:55,705 INFO L264 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-08 12:13:55,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:13:55,719 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-08 12:13:55,936 INFO L263 TraceCheckUtils]: 0: Hoare triple {1609#true} call ULTIMATE.init(); {1609#true} is VALID [2020-07-08 12:13:55,936 INFO L280 TraceCheckUtils]: 1: Hoare triple {1609#true} assume true; {1609#true} is VALID [2020-07-08 12:13:55,937 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {1609#true} {1609#true} #47#return; {1609#true} is VALID [2020-07-08 12:13:55,937 INFO L263 TraceCheckUtils]: 3: Hoare triple {1609#true} call #t~ret5 := main(); {1609#true} is VALID [2020-07-08 12:13:55,938 INFO L280 TraceCheckUtils]: 4: Hoare triple {1609#true} ~x~0 := 4; {1613#(<= 4 main_~x~0)} is VALID [2020-07-08 12:13:55,938 INFO L263 TraceCheckUtils]: 5: Hoare triple {1613#(<= 4 main_~x~0)} call #t~ret4 := fibo1(~x~0); {1609#true} is VALID [2020-07-08 12:13:55,938 INFO L280 TraceCheckUtils]: 6: Hoare triple {1609#true} ~n := #in~n; {1703#(<= |fibo1_#in~n| fibo1_~n)} is VALID [2020-07-08 12:13:55,939 INFO L280 TraceCheckUtils]: 7: Hoare triple {1703#(<= |fibo1_#in~n| fibo1_~n)} assume !(~n < 1); {1703#(<= |fibo1_#in~n| fibo1_~n)} is VALID [2020-07-08 12:13:55,940 INFO L280 TraceCheckUtils]: 8: Hoare triple {1703#(<= |fibo1_#in~n| fibo1_~n)} assume !(1 == ~n); {1703#(<= |fibo1_#in~n| fibo1_~n)} is VALID [2020-07-08 12:13:55,940 INFO L263 TraceCheckUtils]: 9: Hoare triple {1703#(<= |fibo1_#in~n| fibo1_~n)} call #t~ret0 := fibo2(~n - 1); {1609#true} is VALID [2020-07-08 12:13:55,940 INFO L280 TraceCheckUtils]: 10: Hoare triple {1609#true} ~n := #in~n; {1716#(<= |fibo2_#in~n| fibo2_~n)} is VALID [2020-07-08 12:13:55,941 INFO L280 TraceCheckUtils]: 11: Hoare triple {1716#(<= |fibo2_#in~n| fibo2_~n)} assume !(~n < 1); {1716#(<= |fibo2_#in~n| fibo2_~n)} is VALID [2020-07-08 12:13:55,941 INFO L280 TraceCheckUtils]: 12: Hoare triple {1716#(<= |fibo2_#in~n| fibo2_~n)} assume !(1 == ~n); {1716#(<= |fibo2_#in~n| fibo2_~n)} is VALID [2020-07-08 12:13:55,942 INFO L263 TraceCheckUtils]: 13: Hoare triple {1716#(<= |fibo2_#in~n| fibo2_~n)} call #t~ret2 := fibo1(~n - 1); {1609#true} is VALID [2020-07-08 12:13:55,942 INFO L280 TraceCheckUtils]: 14: Hoare triple {1609#true} ~n := #in~n; {1703#(<= |fibo1_#in~n| fibo1_~n)} is VALID [2020-07-08 12:13:55,943 INFO L280 TraceCheckUtils]: 15: Hoare triple {1703#(<= |fibo1_#in~n| fibo1_~n)} assume !(~n < 1); {1703#(<= |fibo1_#in~n| fibo1_~n)} is VALID [2020-07-08 12:13:55,944 INFO L280 TraceCheckUtils]: 16: Hoare triple {1703#(<= |fibo1_#in~n| fibo1_~n)} assume 1 == ~n;#res := 1; {1735#(<= |fibo1_#in~n| 1)} is VALID [2020-07-08 12:13:55,944 INFO L280 TraceCheckUtils]: 17: Hoare triple {1735#(<= |fibo1_#in~n| 1)} assume true; {1735#(<= |fibo1_#in~n| 1)} is VALID [2020-07-08 12:13:55,946 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 [2020-07-08 12:13:55,946 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 [2020-07-08 12:13:55,946 INFO L263 TraceCheckUtils]: 20: Hoare triple {1742#(<= |fibo2_#in~n| 2)} call #t~ret3 := fibo1(~n - 2); {1609#true} is VALID [2020-07-08 12:13:55,947 INFO L280 TraceCheckUtils]: 21: Hoare triple {1609#true} ~n := #in~n; {1609#true} is VALID [2020-07-08 12:13:55,947 INFO L280 TraceCheckUtils]: 22: Hoare triple {1609#true} assume ~n < 1;#res := 0; {1609#true} is VALID [2020-07-08 12:13:55,947 INFO L280 TraceCheckUtils]: 23: Hoare triple {1609#true} assume true; {1609#true} is VALID [2020-07-08 12:13:55,948 INFO L275 TraceCheckUtils]: 24: Hoare quadruple {1609#true} {1742#(<= |fibo2_#in~n| 2)} #55#return; {1742#(<= |fibo2_#in~n| 2)} is VALID [2020-07-08 12:13:55,949 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 [2020-07-08 12:13:55,949 INFO L280 TraceCheckUtils]: 26: Hoare triple {1742#(<= |fibo2_#in~n| 2)} assume true; {1742#(<= |fibo2_#in~n| 2)} is VALID [2020-07-08 12:13:55,951 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 [2020-07-08 12:13:55,951 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 [2020-07-08 12:13:55,951 INFO L263 TraceCheckUtils]: 29: Hoare triple {1770#(<= |fibo1_#in~n| 3)} call #t~ret1 := fibo2(~n - 2); {1609#true} is VALID [2020-07-08 12:13:55,952 INFO L280 TraceCheckUtils]: 30: Hoare triple {1609#true} ~n := #in~n; {1609#true} is VALID [2020-07-08 12:13:55,952 INFO L280 TraceCheckUtils]: 31: Hoare triple {1609#true} assume ~n < 1;#res := 0; {1609#true} is VALID [2020-07-08 12:13:55,952 INFO L280 TraceCheckUtils]: 32: Hoare triple {1609#true} assume true; {1609#true} is VALID [2020-07-08 12:13:55,953 INFO L275 TraceCheckUtils]: 33: Hoare quadruple {1609#true} {1770#(<= |fibo1_#in~n| 3)} #59#return; {1770#(<= |fibo1_#in~n| 3)} is VALID [2020-07-08 12:13:55,953 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~ret0;havoc #t~ret1; {1770#(<= |fibo1_#in~n| 3)} is VALID [2020-07-08 12:13:55,954 INFO L280 TraceCheckUtils]: 35: Hoare triple {1770#(<= |fibo1_#in~n| 3)} assume true; {1770#(<= |fibo1_#in~n| 3)} is VALID [2020-07-08 12:13:55,955 INFO L275 TraceCheckUtils]: 36: Hoare quadruple {1770#(<= |fibo1_#in~n| 3)} {1613#(<= 4 main_~x~0)} #51#return; {1610#false} is VALID [2020-07-08 12:13:55,955 INFO L280 TraceCheckUtils]: 37: Hoare triple {1610#false} assume -2147483648 <= #t~ret4 && #t~ret4 <= 2147483647;~result~0 := #t~ret4;havoc #t~ret4; {1610#false} is VALID [2020-07-08 12:13:55,955 INFO L280 TraceCheckUtils]: 38: Hoare triple {1610#false} assume 3 != ~result~0; {1610#false} is VALID [2020-07-08 12:13:55,956 INFO L280 TraceCheckUtils]: 39: Hoare triple {1610#false} assume !false; {1610#false} is VALID [2020-07-08 12:13:55,957 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-07-08 12:13:55,958 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-08 12:13:55,958 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 14 [2020-07-08 12:13:55,958 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196933192] [2020-07-08 12:13:55,959 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 40 [2020-07-08 12:13:55,959 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 12:13:55,962 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 14 states. [2020-07-08 12:13:56,029 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 61 edges. 61 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 12:13:56,029 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-07-08 12:13:56,030 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-08 12:13:56,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-07-08 12:13:56,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2020-07-08 12:13:56,030 INFO L87 Difference]: Start difference. First operand 66 states and 95 transitions. Second operand 14 states. [2020-07-08 12:13:57,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 12:13:57,618 INFO L93 Difference]: Finished difference Result 180 states and 324 transitions. [2020-07-08 12:13:57,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-07-08 12:13:57,618 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 40 [2020-07-08 12:13:57,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 12:13:57,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-07-08 12:13:57,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 133 transitions. [2020-07-08 12:13:57,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-07-08 12:13:57,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 133 transitions. [2020-07-08 12:13:57,629 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 16 states and 133 transitions. [2020-07-08 12:13:57,792 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 133 edges. 133 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 12:13:57,799 INFO L225 Difference]: With dead ends: 180 [2020-07-08 12:13:57,800 INFO L226 Difference]: Without dead ends: 120 [2020-07-08 12:13:57,802 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=86, Invalid=376, Unknown=0, NotChecked=0, Total=462 [2020-07-08 12:13:57,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2020-07-08 12:13:57,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 106. [2020-07-08 12:13:57,871 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 12:13:57,871 INFO L82 GeneralOperation]: Start isEquivalent. First operand 120 states. Second operand 106 states. [2020-07-08 12:13:57,871 INFO L74 IsIncluded]: Start isIncluded. First operand 120 states. Second operand 106 states. [2020-07-08 12:13:57,872 INFO L87 Difference]: Start difference. First operand 120 states. Second operand 106 states. [2020-07-08 12:13:57,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 12:13:57,881 INFO L93 Difference]: Finished difference Result 120 states and 198 transitions. [2020-07-08 12:13:57,881 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 198 transitions. [2020-07-08 12:13:57,883 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 12:13:57,883 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 12:13:57,883 INFO L74 IsIncluded]: Start isIncluded. First operand 106 states. Second operand 120 states. [2020-07-08 12:13:57,883 INFO L87 Difference]: Start difference. First operand 106 states. Second operand 120 states. [2020-07-08 12:13:57,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 12:13:57,893 INFO L93 Difference]: Finished difference Result 120 states and 198 transitions. [2020-07-08 12:13:57,894 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 198 transitions. [2020-07-08 12:13:57,895 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 12:13:57,895 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 12:13:57,895 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 12:13:57,895 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 12:13:57,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-07-08 12:13:57,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 169 transitions. [2020-07-08 12:13:57,902 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 169 transitions. Word has length 40 [2020-07-08 12:13:57,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 12:13:57,903 INFO L479 AbstractCegarLoop]: Abstraction has 106 states and 169 transitions. [2020-07-08 12:13:57,903 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-07-08 12:13:57,903 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 169 transitions. [2020-07-08 12:13:57,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-07-08 12:13:57,905 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 12:13:57,905 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] [2020-07-08 12:13:58,119 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-08 12:13:58,120 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 12:13:58,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 12:13:58,121 INFO L82 PathProgramCache]: Analyzing trace with hash -405677468, now seen corresponding path program 1 times [2020-07-08 12:13:58,121 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-08 12:13:58,122 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020272369] [2020-07-08 12:13:58,122 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 12:13:58,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:13:58,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:13:58,164 INFO L280 TraceCheckUtils]: 0: Hoare triple {2436#true} assume true; {2436#true} is VALID [2020-07-08 12:13:58,164 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {2436#true} {2436#true} #47#return; {2436#true} is VALID [2020-07-08 12:13:58,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:13:58,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:13:58,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:13:58,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:13:58,278 INFO L280 TraceCheckUtils]: 0: Hoare triple {2436#true} ~n := #in~n; {2436#true} is VALID [2020-07-08 12:13:58,279 INFO L280 TraceCheckUtils]: 1: Hoare triple {2436#true} assume !(~n < 1); {2436#true} is VALID [2020-07-08 12:13:58,279 INFO L280 TraceCheckUtils]: 2: Hoare triple {2436#true} assume 1 == ~n;#res := 1; {2436#true} is VALID [2020-07-08 12:13:58,279 INFO L280 TraceCheckUtils]: 3: Hoare triple {2436#true} assume true; {2436#true} is VALID [2020-07-08 12:13:58,280 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {2436#true} {2547#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} #57#return; {2547#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 12:13:58,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:13:58,300 INFO L280 TraceCheckUtils]: 0: Hoare triple {2436#true} ~n := #in~n; {2436#true} is VALID [2020-07-08 12:13:58,300 INFO L280 TraceCheckUtils]: 1: Hoare triple {2436#true} assume ~n < 1;#res := 0; {2436#true} is VALID [2020-07-08 12:13:58,300 INFO L280 TraceCheckUtils]: 2: Hoare triple {2436#true} assume true; {2436#true} is VALID [2020-07-08 12:13:58,301 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {2436#true} {2547#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} #59#return; {2557#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 12:13:58,302 INFO L280 TraceCheckUtils]: 0: Hoare triple {2436#true} ~n := #in~n; {2545#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 12:13:58,302 INFO L280 TraceCheckUtils]: 1: Hoare triple {2545#(= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {2546#(and (< 0 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 12:13:58,303 INFO L280 TraceCheckUtils]: 2: Hoare triple {2546#(and (< 0 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} assume !(1 == ~n); {2547#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 12:13:58,303 INFO L263 TraceCheckUtils]: 3: Hoare triple {2547#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} call #t~ret0 := fibo2(~n - 1); {2436#true} is VALID [2020-07-08 12:13:58,303 INFO L280 TraceCheckUtils]: 4: Hoare triple {2436#true} ~n := #in~n; {2436#true} is VALID [2020-07-08 12:13:58,304 INFO L280 TraceCheckUtils]: 5: Hoare triple {2436#true} assume !(~n < 1); {2436#true} is VALID [2020-07-08 12:13:58,304 INFO L280 TraceCheckUtils]: 6: Hoare triple {2436#true} assume 1 == ~n;#res := 1; {2436#true} is VALID [2020-07-08 12:13:58,304 INFO L280 TraceCheckUtils]: 7: Hoare triple {2436#true} assume true; {2436#true} is VALID [2020-07-08 12:13:58,304 INFO L275 TraceCheckUtils]: 8: Hoare quadruple {2436#true} {2547#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} #57#return; {2547#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 12:13:58,305 INFO L280 TraceCheckUtils]: 9: Hoare triple {2547#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {2547#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 12:13:58,305 INFO L263 TraceCheckUtils]: 10: Hoare triple {2547#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} call #t~ret1 := fibo2(~n - 2); {2436#true} is VALID [2020-07-08 12:13:58,306 INFO L280 TraceCheckUtils]: 11: Hoare triple {2436#true} ~n := #in~n; {2436#true} is VALID [2020-07-08 12:13:58,306 INFO L280 TraceCheckUtils]: 12: Hoare triple {2436#true} assume ~n < 1;#res := 0; {2436#true} is VALID [2020-07-08 12:13:58,306 INFO L280 TraceCheckUtils]: 13: Hoare triple {2436#true} assume true; {2436#true} is VALID [2020-07-08 12:13:58,307 INFO L275 TraceCheckUtils]: 14: Hoare quadruple {2436#true} {2547#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} #59#return; {2557#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 12:13:58,308 INFO L280 TraceCheckUtils]: 15: Hoare triple {2557#(<= 2 |fibo1_#in~n|)} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647;#res := #t~ret0 + #t~ret1;havoc #t~ret0;havoc #t~ret1; {2557#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 12:13:58,309 INFO L280 TraceCheckUtils]: 16: Hoare triple {2557#(<= 2 |fibo1_#in~n|)} assume true; {2557#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 12:13:58,311 INFO L275 TraceCheckUtils]: 17: Hoare quadruple {2557#(<= 2 |fibo1_#in~n|)} {2436#true} #53#return; {2540#(<= 3 fibo2_~n)} is VALID [2020-07-08 12:13:58,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:13:58,332 INFO L280 TraceCheckUtils]: 0: Hoare triple {2436#true} ~n := #in~n; {2545#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 12:13:58,333 INFO L280 TraceCheckUtils]: 1: Hoare triple {2545#(= fibo1_~n |fibo1_#in~n|)} assume ~n < 1;#res := 0; {2558#(<= |fibo1_#in~n| 0)} is VALID [2020-07-08 12:13:58,334 INFO L280 TraceCheckUtils]: 2: Hoare triple {2558#(<= |fibo1_#in~n| 0)} assume true; {2558#(<= |fibo1_#in~n| 0)} is VALID [2020-07-08 12:13:58,335 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {2558#(<= |fibo1_#in~n| 0)} {2540#(<= 3 fibo2_~n)} #55#return; {2437#false} is VALID [2020-07-08 12:13:58,335 INFO L280 TraceCheckUtils]: 0: Hoare triple {2436#true} ~n := #in~n; {2436#true} is VALID [2020-07-08 12:13:58,335 INFO L280 TraceCheckUtils]: 1: Hoare triple {2436#true} assume !(~n < 1); {2436#true} is VALID [2020-07-08 12:13:58,335 INFO L280 TraceCheckUtils]: 2: Hoare triple {2436#true} assume !(1 == ~n); {2436#true} is VALID [2020-07-08 12:13:58,335 INFO L263 TraceCheckUtils]: 3: Hoare triple {2436#true} call #t~ret2 := fibo1(~n - 1); {2436#true} is VALID [2020-07-08 12:13:58,336 INFO L280 TraceCheckUtils]: 4: Hoare triple {2436#true} ~n := #in~n; {2545#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 12:13:58,337 INFO L280 TraceCheckUtils]: 5: Hoare triple {2545#(= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {2546#(and (< 0 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 12:13:58,337 INFO L280 TraceCheckUtils]: 6: Hoare triple {2546#(and (< 0 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} assume !(1 == ~n); {2547#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 12:13:58,338 INFO L263 TraceCheckUtils]: 7: Hoare triple {2547#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} call #t~ret0 := fibo2(~n - 1); {2436#true} is VALID [2020-07-08 12:13:58,338 INFO L280 TraceCheckUtils]: 8: Hoare triple {2436#true} ~n := #in~n; {2436#true} is VALID [2020-07-08 12:13:58,338 INFO L280 TraceCheckUtils]: 9: Hoare triple {2436#true} assume !(~n < 1); {2436#true} is VALID [2020-07-08 12:13:58,338 INFO L280 TraceCheckUtils]: 10: Hoare triple {2436#true} assume 1 == ~n;#res := 1; {2436#true} is VALID [2020-07-08 12:13:58,338 INFO L280 TraceCheckUtils]: 11: Hoare triple {2436#true} assume true; {2436#true} is VALID [2020-07-08 12:13:58,339 INFO L275 TraceCheckUtils]: 12: Hoare quadruple {2436#true} {2547#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} #57#return; {2547#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 12:13:58,340 INFO L280 TraceCheckUtils]: 13: Hoare triple {2547#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {2547#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 12:13:58,340 INFO L263 TraceCheckUtils]: 14: Hoare triple {2547#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} call #t~ret1 := fibo2(~n - 2); {2436#true} is VALID [2020-07-08 12:13:58,340 INFO L280 TraceCheckUtils]: 15: Hoare triple {2436#true} ~n := #in~n; {2436#true} is VALID [2020-07-08 12:13:58,340 INFO L280 TraceCheckUtils]: 16: Hoare triple {2436#true} assume ~n < 1;#res := 0; {2436#true} is VALID [2020-07-08 12:13:58,341 INFO L280 TraceCheckUtils]: 17: Hoare triple {2436#true} assume true; {2436#true} is VALID [2020-07-08 12:13:58,342 INFO L275 TraceCheckUtils]: 18: Hoare quadruple {2436#true} {2547#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} #59#return; {2557#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 12:13:58,342 INFO L280 TraceCheckUtils]: 19: Hoare triple {2557#(<= 2 |fibo1_#in~n|)} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647;#res := #t~ret0 + #t~ret1;havoc #t~ret0;havoc #t~ret1; {2557#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 12:13:58,343 INFO L280 TraceCheckUtils]: 20: Hoare triple {2557#(<= 2 |fibo1_#in~n|)} assume true; {2557#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 12:13:58,344 INFO L275 TraceCheckUtils]: 21: Hoare quadruple {2557#(<= 2 |fibo1_#in~n|)} {2436#true} #53#return; {2540#(<= 3 fibo2_~n)} is VALID [2020-07-08 12:13:58,344 INFO L280 TraceCheckUtils]: 22: Hoare triple {2540#(<= 3 fibo2_~n)} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {2540#(<= 3 fibo2_~n)} is VALID [2020-07-08 12:13:58,345 INFO L263 TraceCheckUtils]: 23: Hoare triple {2540#(<= 3 fibo2_~n)} call #t~ret3 := fibo1(~n - 2); {2436#true} is VALID [2020-07-08 12:13:58,345 INFO L280 TraceCheckUtils]: 24: Hoare triple {2436#true} ~n := #in~n; {2545#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 12:13:58,346 INFO L280 TraceCheckUtils]: 25: Hoare triple {2545#(= fibo1_~n |fibo1_#in~n|)} assume ~n < 1;#res := 0; {2558#(<= |fibo1_#in~n| 0)} is VALID [2020-07-08 12:13:58,346 INFO L280 TraceCheckUtils]: 26: Hoare triple {2558#(<= |fibo1_#in~n| 0)} assume true; {2558#(<= |fibo1_#in~n| 0)} is VALID [2020-07-08 12:13:58,347 INFO L275 TraceCheckUtils]: 27: Hoare quadruple {2558#(<= |fibo1_#in~n| 0)} {2540#(<= 3 fibo2_~n)} #55#return; {2437#false} is VALID [2020-07-08 12:13:58,348 INFO L280 TraceCheckUtils]: 28: Hoare triple {2437#false} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647;#res := #t~ret2 + #t~ret3;havoc #t~ret2;havoc #t~ret3; {2437#false} is VALID [2020-07-08 12:13:58,348 INFO L280 TraceCheckUtils]: 29: Hoare triple {2437#false} assume true; {2437#false} is VALID [2020-07-08 12:13:58,348 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {2437#false} {2436#true} #57#return; {2437#false} is VALID [2020-07-08 12:13:58,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:13:58,353 INFO L280 TraceCheckUtils]: 0: Hoare triple {2436#true} ~n := #in~n; {2436#true} is VALID [2020-07-08 12:13:58,353 INFO L280 TraceCheckUtils]: 1: Hoare triple {2436#true} assume !(~n < 1); {2436#true} is VALID [2020-07-08 12:13:58,354 INFO L280 TraceCheckUtils]: 2: Hoare triple {2436#true} assume 1 == ~n;#res := 1; {2436#true} is VALID [2020-07-08 12:13:58,354 INFO L280 TraceCheckUtils]: 3: Hoare triple {2436#true} assume true; {2436#true} is VALID [2020-07-08 12:13:58,354 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {2436#true} {2437#false} #59#return; {2437#false} is VALID [2020-07-08 12:13:58,354 INFO L280 TraceCheckUtils]: 0: Hoare triple {2436#true} ~n := #in~n; {2436#true} is VALID [2020-07-08 12:13:58,354 INFO L280 TraceCheckUtils]: 1: Hoare triple {2436#true} assume !(~n < 1); {2436#true} is VALID [2020-07-08 12:13:58,355 INFO L280 TraceCheckUtils]: 2: Hoare triple {2436#true} assume !(1 == ~n); {2436#true} is VALID [2020-07-08 12:13:58,355 INFO L263 TraceCheckUtils]: 3: Hoare triple {2436#true} call #t~ret0 := fibo2(~n - 1); {2436#true} is VALID [2020-07-08 12:13:58,355 INFO L280 TraceCheckUtils]: 4: Hoare triple {2436#true} ~n := #in~n; {2436#true} is VALID [2020-07-08 12:13:58,355 INFO L280 TraceCheckUtils]: 5: Hoare triple {2436#true} assume !(~n < 1); {2436#true} is VALID [2020-07-08 12:13:58,355 INFO L280 TraceCheckUtils]: 6: Hoare triple {2436#true} assume !(1 == ~n); {2436#true} is VALID [2020-07-08 12:13:58,356 INFO L263 TraceCheckUtils]: 7: Hoare triple {2436#true} call #t~ret2 := fibo1(~n - 1); {2436#true} is VALID [2020-07-08 12:13:58,356 INFO L280 TraceCheckUtils]: 8: Hoare triple {2436#true} ~n := #in~n; {2545#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 12:13:58,357 INFO L280 TraceCheckUtils]: 9: Hoare triple {2545#(= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {2546#(and (< 0 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 12:13:58,358 INFO L280 TraceCheckUtils]: 10: Hoare triple {2546#(and (< 0 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} assume !(1 == ~n); {2547#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 12:13:58,358 INFO L263 TraceCheckUtils]: 11: Hoare triple {2547#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} call #t~ret0 := fibo2(~n - 1); {2436#true} is VALID [2020-07-08 12:13:58,358 INFO L280 TraceCheckUtils]: 12: Hoare triple {2436#true} ~n := #in~n; {2436#true} is VALID [2020-07-08 12:13:58,358 INFO L280 TraceCheckUtils]: 13: Hoare triple {2436#true} assume !(~n < 1); {2436#true} is VALID [2020-07-08 12:13:58,358 INFO L280 TraceCheckUtils]: 14: Hoare triple {2436#true} assume 1 == ~n;#res := 1; {2436#true} is VALID [2020-07-08 12:13:58,359 INFO L280 TraceCheckUtils]: 15: Hoare triple {2436#true} assume true; {2436#true} is VALID [2020-07-08 12:13:58,359 INFO L275 TraceCheckUtils]: 16: Hoare quadruple {2436#true} {2547#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} #57#return; {2547#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 12:13:58,360 INFO L280 TraceCheckUtils]: 17: Hoare triple {2547#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {2547#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 12:13:58,360 INFO L263 TraceCheckUtils]: 18: Hoare triple {2547#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} call #t~ret1 := fibo2(~n - 2); {2436#true} is VALID [2020-07-08 12:13:58,361 INFO L280 TraceCheckUtils]: 19: Hoare triple {2436#true} ~n := #in~n; {2436#true} is VALID [2020-07-08 12:13:58,361 INFO L280 TraceCheckUtils]: 20: Hoare triple {2436#true} assume ~n < 1;#res := 0; {2436#true} is VALID [2020-07-08 12:13:58,361 INFO L280 TraceCheckUtils]: 21: Hoare triple {2436#true} assume true; {2436#true} is VALID [2020-07-08 12:13:58,362 INFO L275 TraceCheckUtils]: 22: Hoare quadruple {2436#true} {2547#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} #59#return; {2557#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 12:13:58,363 INFO L280 TraceCheckUtils]: 23: Hoare triple {2557#(<= 2 |fibo1_#in~n|)} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647;#res := #t~ret0 + #t~ret1;havoc #t~ret0;havoc #t~ret1; {2557#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 12:13:58,363 INFO L280 TraceCheckUtils]: 24: Hoare triple {2557#(<= 2 |fibo1_#in~n|)} assume true; {2557#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 12:13:58,364 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {2557#(<= 2 |fibo1_#in~n|)} {2436#true} #53#return; {2540#(<= 3 fibo2_~n)} is VALID [2020-07-08 12:13:58,365 INFO L280 TraceCheckUtils]: 26: Hoare triple {2540#(<= 3 fibo2_~n)} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {2540#(<= 3 fibo2_~n)} is VALID [2020-07-08 12:13:58,365 INFO L263 TraceCheckUtils]: 27: Hoare triple {2540#(<= 3 fibo2_~n)} call #t~ret3 := fibo1(~n - 2); {2436#true} is VALID [2020-07-08 12:13:58,365 INFO L280 TraceCheckUtils]: 28: Hoare triple {2436#true} ~n := #in~n; {2545#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 12:13:58,366 INFO L280 TraceCheckUtils]: 29: Hoare triple {2545#(= fibo1_~n |fibo1_#in~n|)} assume ~n < 1;#res := 0; {2558#(<= |fibo1_#in~n| 0)} is VALID [2020-07-08 12:13:58,366 INFO L280 TraceCheckUtils]: 30: Hoare triple {2558#(<= |fibo1_#in~n| 0)} assume true; {2558#(<= |fibo1_#in~n| 0)} is VALID [2020-07-08 12:13:58,367 INFO L275 TraceCheckUtils]: 31: Hoare quadruple {2558#(<= |fibo1_#in~n| 0)} {2540#(<= 3 fibo2_~n)} #55#return; {2437#false} is VALID [2020-07-08 12:13:58,368 INFO L280 TraceCheckUtils]: 32: Hoare triple {2437#false} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647;#res := #t~ret2 + #t~ret3;havoc #t~ret2;havoc #t~ret3; {2437#false} is VALID [2020-07-08 12:13:58,368 INFO L280 TraceCheckUtils]: 33: Hoare triple {2437#false} assume true; {2437#false} is VALID [2020-07-08 12:13:58,368 INFO L275 TraceCheckUtils]: 34: Hoare quadruple {2437#false} {2436#true} #57#return; {2437#false} is VALID [2020-07-08 12:13:58,368 INFO L280 TraceCheckUtils]: 35: Hoare triple {2437#false} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {2437#false} is VALID [2020-07-08 12:13:58,368 INFO L263 TraceCheckUtils]: 36: Hoare triple {2437#false} call #t~ret1 := fibo2(~n - 2); {2436#true} is VALID [2020-07-08 12:13:58,369 INFO L280 TraceCheckUtils]: 37: Hoare triple {2436#true} ~n := #in~n; {2436#true} is VALID [2020-07-08 12:13:58,369 INFO L280 TraceCheckUtils]: 38: Hoare triple {2436#true} assume !(~n < 1); {2436#true} is VALID [2020-07-08 12:13:58,369 INFO L280 TraceCheckUtils]: 39: Hoare triple {2436#true} assume 1 == ~n;#res := 1; {2436#true} is VALID [2020-07-08 12:13:58,369 INFO L280 TraceCheckUtils]: 40: Hoare triple {2436#true} assume true; {2436#true} is VALID [2020-07-08 12:13:58,369 INFO L275 TraceCheckUtils]: 41: Hoare quadruple {2436#true} {2437#false} #59#return; {2437#false} is VALID [2020-07-08 12:13:58,369 INFO L280 TraceCheckUtils]: 42: Hoare triple {2437#false} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647;#res := #t~ret0 + #t~ret1;havoc #t~ret0;havoc #t~ret1; {2437#false} is VALID [2020-07-08 12:13:58,370 INFO L280 TraceCheckUtils]: 43: Hoare triple {2437#false} assume true; {2437#false} is VALID [2020-07-08 12:13:58,370 INFO L275 TraceCheckUtils]: 44: Hoare quadruple {2437#false} {2440#(<= 4 main_~x~0)} #51#return; {2437#false} is VALID [2020-07-08 12:13:58,371 INFO L263 TraceCheckUtils]: 0: Hoare triple {2436#true} call ULTIMATE.init(); {2436#true} is VALID [2020-07-08 12:13:58,372 INFO L280 TraceCheckUtils]: 1: Hoare triple {2436#true} assume true; {2436#true} is VALID [2020-07-08 12:13:58,372 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {2436#true} {2436#true} #47#return; {2436#true} is VALID [2020-07-08 12:13:58,372 INFO L263 TraceCheckUtils]: 3: Hoare triple {2436#true} call #t~ret5 := main(); {2436#true} is VALID [2020-07-08 12:13:58,372 INFO L280 TraceCheckUtils]: 4: Hoare triple {2436#true} ~x~0 := 4; {2440#(<= 4 main_~x~0)} is VALID [2020-07-08 12:13:58,373 INFO L263 TraceCheckUtils]: 5: Hoare triple {2440#(<= 4 main_~x~0)} call #t~ret4 := fibo1(~x~0); {2436#true} is VALID [2020-07-08 12:13:58,373 INFO L280 TraceCheckUtils]: 6: Hoare triple {2436#true} ~n := #in~n; {2436#true} is VALID [2020-07-08 12:13:58,373 INFO L280 TraceCheckUtils]: 7: Hoare triple {2436#true} assume !(~n < 1); {2436#true} is VALID [2020-07-08 12:13:58,373 INFO L280 TraceCheckUtils]: 8: Hoare triple {2436#true} assume !(1 == ~n); {2436#true} is VALID [2020-07-08 12:13:58,373 INFO L263 TraceCheckUtils]: 9: Hoare triple {2436#true} call #t~ret0 := fibo2(~n - 1); {2436#true} is VALID [2020-07-08 12:13:58,374 INFO L280 TraceCheckUtils]: 10: Hoare triple {2436#true} ~n := #in~n; {2436#true} is VALID [2020-07-08 12:13:58,374 INFO L280 TraceCheckUtils]: 11: Hoare triple {2436#true} assume !(~n < 1); {2436#true} is VALID [2020-07-08 12:13:58,374 INFO L280 TraceCheckUtils]: 12: Hoare triple {2436#true} assume !(1 == ~n); {2436#true} is VALID [2020-07-08 12:13:58,374 INFO L263 TraceCheckUtils]: 13: Hoare triple {2436#true} call #t~ret2 := fibo1(~n - 1); {2436#true} is VALID [2020-07-08 12:13:58,374 INFO L280 TraceCheckUtils]: 14: Hoare triple {2436#true} ~n := #in~n; {2545#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 12:13:58,375 INFO L280 TraceCheckUtils]: 15: Hoare triple {2545#(= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {2546#(and (< 0 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 12:13:58,376 INFO L280 TraceCheckUtils]: 16: Hoare triple {2546#(and (< 0 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} assume !(1 == ~n); {2547#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 12:13:58,376 INFO L263 TraceCheckUtils]: 17: Hoare triple {2547#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} call #t~ret0 := fibo2(~n - 1); {2436#true} is VALID [2020-07-08 12:13:58,376 INFO L280 TraceCheckUtils]: 18: Hoare triple {2436#true} ~n := #in~n; {2436#true} is VALID [2020-07-08 12:13:58,376 INFO L280 TraceCheckUtils]: 19: Hoare triple {2436#true} assume !(~n < 1); {2436#true} is VALID [2020-07-08 12:13:58,376 INFO L280 TraceCheckUtils]: 20: Hoare triple {2436#true} assume 1 == ~n;#res := 1; {2436#true} is VALID [2020-07-08 12:13:58,376 INFO L280 TraceCheckUtils]: 21: Hoare triple {2436#true} assume true; {2436#true} is VALID [2020-07-08 12:13:58,377 INFO L275 TraceCheckUtils]: 22: Hoare quadruple {2436#true} {2547#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} #57#return; {2547#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 12:13:58,377 INFO L280 TraceCheckUtils]: 23: Hoare triple {2547#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {2547#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 12:13:58,377 INFO L263 TraceCheckUtils]: 24: Hoare triple {2547#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} call #t~ret1 := fibo2(~n - 2); {2436#true} is VALID [2020-07-08 12:13:58,378 INFO L280 TraceCheckUtils]: 25: Hoare triple {2436#true} ~n := #in~n; {2436#true} is VALID [2020-07-08 12:13:58,378 INFO L280 TraceCheckUtils]: 26: Hoare triple {2436#true} assume ~n < 1;#res := 0; {2436#true} is VALID [2020-07-08 12:13:58,378 INFO L280 TraceCheckUtils]: 27: Hoare triple {2436#true} assume true; {2436#true} is VALID [2020-07-08 12:13:58,379 INFO L275 TraceCheckUtils]: 28: Hoare quadruple {2436#true} {2547#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} #59#return; {2557#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 12:13:58,379 INFO L280 TraceCheckUtils]: 29: Hoare triple {2557#(<= 2 |fibo1_#in~n|)} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647;#res := #t~ret0 + #t~ret1;havoc #t~ret0;havoc #t~ret1; {2557#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 12:13:58,379 INFO L280 TraceCheckUtils]: 30: Hoare triple {2557#(<= 2 |fibo1_#in~n|)} assume true; {2557#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 12:13:58,380 INFO L275 TraceCheckUtils]: 31: Hoare quadruple {2557#(<= 2 |fibo1_#in~n|)} {2436#true} #53#return; {2540#(<= 3 fibo2_~n)} is VALID [2020-07-08 12:13:58,380 INFO L280 TraceCheckUtils]: 32: Hoare triple {2540#(<= 3 fibo2_~n)} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {2540#(<= 3 fibo2_~n)} is VALID [2020-07-08 12:13:58,381 INFO L263 TraceCheckUtils]: 33: Hoare triple {2540#(<= 3 fibo2_~n)} call #t~ret3 := fibo1(~n - 2); {2436#true} is VALID [2020-07-08 12:13:58,381 INFO L280 TraceCheckUtils]: 34: Hoare triple {2436#true} ~n := #in~n; {2545#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 12:13:58,382 INFO L280 TraceCheckUtils]: 35: Hoare triple {2545#(= fibo1_~n |fibo1_#in~n|)} assume ~n < 1;#res := 0; {2558#(<= |fibo1_#in~n| 0)} is VALID [2020-07-08 12:13:58,382 INFO L280 TraceCheckUtils]: 36: Hoare triple {2558#(<= |fibo1_#in~n| 0)} assume true; {2558#(<= |fibo1_#in~n| 0)} is VALID [2020-07-08 12:13:58,383 INFO L275 TraceCheckUtils]: 37: Hoare quadruple {2558#(<= |fibo1_#in~n| 0)} {2540#(<= 3 fibo2_~n)} #55#return; {2437#false} is VALID [2020-07-08 12:13:58,383 INFO L280 TraceCheckUtils]: 38: Hoare triple {2437#false} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647;#res := #t~ret2 + #t~ret3;havoc #t~ret2;havoc #t~ret3; {2437#false} is VALID [2020-07-08 12:13:58,383 INFO L280 TraceCheckUtils]: 39: Hoare triple {2437#false} assume true; {2437#false} is VALID [2020-07-08 12:13:58,383 INFO L275 TraceCheckUtils]: 40: Hoare quadruple {2437#false} {2436#true} #57#return; {2437#false} is VALID [2020-07-08 12:13:58,383 INFO L280 TraceCheckUtils]: 41: Hoare triple {2437#false} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {2437#false} is VALID [2020-07-08 12:13:58,383 INFO L263 TraceCheckUtils]: 42: Hoare triple {2437#false} call #t~ret1 := fibo2(~n - 2); {2436#true} is VALID [2020-07-08 12:13:58,384 INFO L280 TraceCheckUtils]: 43: Hoare triple {2436#true} ~n := #in~n; {2436#true} is VALID [2020-07-08 12:13:58,384 INFO L280 TraceCheckUtils]: 44: Hoare triple {2436#true} assume !(~n < 1); {2436#true} is VALID [2020-07-08 12:13:58,384 INFO L280 TraceCheckUtils]: 45: Hoare triple {2436#true} assume 1 == ~n;#res := 1; {2436#true} is VALID [2020-07-08 12:13:58,384 INFO L280 TraceCheckUtils]: 46: Hoare triple {2436#true} assume true; {2436#true} is VALID [2020-07-08 12:13:58,384 INFO L275 TraceCheckUtils]: 47: Hoare quadruple {2436#true} {2437#false} #59#return; {2437#false} is VALID [2020-07-08 12:13:58,384 INFO L280 TraceCheckUtils]: 48: Hoare triple {2437#false} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647;#res := #t~ret0 + #t~ret1;havoc #t~ret0;havoc #t~ret1; {2437#false} is VALID [2020-07-08 12:13:58,384 INFO L280 TraceCheckUtils]: 49: Hoare triple {2437#false} assume true; {2437#false} is VALID [2020-07-08 12:13:58,384 INFO L275 TraceCheckUtils]: 50: Hoare quadruple {2437#false} {2440#(<= 4 main_~x~0)} #51#return; {2437#false} is VALID [2020-07-08 12:13:58,385 INFO L280 TraceCheckUtils]: 51: Hoare triple {2437#false} assume -2147483648 <= #t~ret4 && #t~ret4 <= 2147483647;~result~0 := #t~ret4;havoc #t~ret4; {2437#false} is VALID [2020-07-08 12:13:58,385 INFO L280 TraceCheckUtils]: 52: Hoare triple {2437#false} assume 3 != ~result~0; {2437#false} is VALID [2020-07-08 12:13:58,385 INFO L280 TraceCheckUtils]: 53: Hoare triple {2437#false} assume !false; {2437#false} is VALID [2020-07-08 12:13:58,386 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 15 proven. 4 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-07-08 12:13:58,387 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020272369] [2020-07-08 12:13:58,387 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [100081552] [2020-07-08 12:13:58,387 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 [2020-07-08 12:13:58,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:13:58,419 INFO L264 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-08 12:13:58,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:13:58,435 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-08 12:13:58,600 INFO L263 TraceCheckUtils]: 0: Hoare triple {2436#true} call ULTIMATE.init(); {2436#true} is VALID [2020-07-08 12:13:58,601 INFO L280 TraceCheckUtils]: 1: Hoare triple {2436#true} assume true; {2436#true} is VALID [2020-07-08 12:13:58,601 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {2436#true} {2436#true} #47#return; {2436#true} is VALID [2020-07-08 12:13:58,601 INFO L263 TraceCheckUtils]: 3: Hoare triple {2436#true} call #t~ret5 := main(); {2436#true} is VALID [2020-07-08 12:13:58,607 INFO L280 TraceCheckUtils]: 4: Hoare triple {2436#true} ~x~0 := 4; {2440#(<= 4 main_~x~0)} is VALID [2020-07-08 12:13:58,607 INFO L263 TraceCheckUtils]: 5: Hoare triple {2440#(<= 4 main_~x~0)} call #t~ret4 := fibo1(~x~0); {2436#true} is VALID [2020-07-08 12:13:58,607 INFO L280 TraceCheckUtils]: 6: Hoare triple {2436#true} ~n := #in~n; {2580#(<= |fibo1_#in~n| fibo1_~n)} is VALID [2020-07-08 12:13:58,608 INFO L280 TraceCheckUtils]: 7: Hoare triple {2580#(<= |fibo1_#in~n| fibo1_~n)} assume !(~n < 1); {2580#(<= |fibo1_#in~n| fibo1_~n)} is VALID [2020-07-08 12:13:58,608 INFO L280 TraceCheckUtils]: 8: Hoare triple {2580#(<= |fibo1_#in~n| fibo1_~n)} assume !(1 == ~n); {2580#(<= |fibo1_#in~n| fibo1_~n)} is VALID [2020-07-08 12:13:58,608 INFO L263 TraceCheckUtils]: 9: Hoare triple {2580#(<= |fibo1_#in~n| fibo1_~n)} call #t~ret0 := fibo2(~n - 1); {2436#true} is VALID [2020-07-08 12:13:58,609 INFO L280 TraceCheckUtils]: 10: Hoare triple {2436#true} ~n := #in~n; {2593#(<= |fibo2_#in~n| fibo2_~n)} is VALID [2020-07-08 12:13:58,610 INFO L280 TraceCheckUtils]: 11: Hoare triple {2593#(<= |fibo2_#in~n| fibo2_~n)} assume !(~n < 1); {2593#(<= |fibo2_#in~n| fibo2_~n)} is VALID [2020-07-08 12:13:58,610 INFO L280 TraceCheckUtils]: 12: Hoare triple {2593#(<= |fibo2_#in~n| fibo2_~n)} assume !(1 == ~n); {2593#(<= |fibo2_#in~n| fibo2_~n)} is VALID [2020-07-08 12:13:58,610 INFO L263 TraceCheckUtils]: 13: Hoare triple {2593#(<= |fibo2_#in~n| fibo2_~n)} call #t~ret2 := fibo1(~n - 1); {2436#true} is VALID [2020-07-08 12:13:58,610 INFO L280 TraceCheckUtils]: 14: Hoare triple {2436#true} ~n := #in~n; {2436#true} is VALID [2020-07-08 12:13:58,611 INFO L280 TraceCheckUtils]: 15: Hoare triple {2436#true} assume !(~n < 1); {2436#true} is VALID [2020-07-08 12:13:58,611 INFO L280 TraceCheckUtils]: 16: Hoare triple {2436#true} assume !(1 == ~n); {2436#true} is VALID [2020-07-08 12:13:58,611 INFO L263 TraceCheckUtils]: 17: Hoare triple {2436#true} call #t~ret0 := fibo2(~n - 1); {2436#true} is VALID [2020-07-08 12:13:58,611 INFO L280 TraceCheckUtils]: 18: Hoare triple {2436#true} ~n := #in~n; {2436#true} is VALID [2020-07-08 12:13:58,611 INFO L280 TraceCheckUtils]: 19: Hoare triple {2436#true} assume !(~n < 1); {2436#true} is VALID [2020-07-08 12:13:58,611 INFO L280 TraceCheckUtils]: 20: Hoare triple {2436#true} assume 1 == ~n;#res := 1; {2436#true} is VALID [2020-07-08 12:13:58,612 INFO L280 TraceCheckUtils]: 21: Hoare triple {2436#true} assume true; {2436#true} is VALID [2020-07-08 12:13:58,612 INFO L275 TraceCheckUtils]: 22: Hoare quadruple {2436#true} {2436#true} #57#return; {2436#true} is VALID [2020-07-08 12:13:58,612 INFO L280 TraceCheckUtils]: 23: Hoare triple {2436#true} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {2436#true} is VALID [2020-07-08 12:13:58,612 INFO L263 TraceCheckUtils]: 24: Hoare triple {2436#true} call #t~ret1 := fibo2(~n - 2); {2436#true} is VALID [2020-07-08 12:13:58,612 INFO L280 TraceCheckUtils]: 25: Hoare triple {2436#true} ~n := #in~n; {2436#true} is VALID [2020-07-08 12:13:58,612 INFO L280 TraceCheckUtils]: 26: Hoare triple {2436#true} assume ~n < 1;#res := 0; {2436#true} is VALID [2020-07-08 12:13:58,613 INFO L280 TraceCheckUtils]: 27: Hoare triple {2436#true} assume true; {2436#true} is VALID [2020-07-08 12:13:58,613 INFO L275 TraceCheckUtils]: 28: Hoare quadruple {2436#true} {2436#true} #59#return; {2436#true} is VALID [2020-07-08 12:13:58,613 INFO L280 TraceCheckUtils]: 29: Hoare triple {2436#true} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647;#res := #t~ret0 + #t~ret1;havoc #t~ret0;havoc #t~ret1; {2436#true} is VALID [2020-07-08 12:13:58,613 INFO L280 TraceCheckUtils]: 30: Hoare triple {2436#true} assume true; {2436#true} is VALID [2020-07-08 12:13:58,614 INFO L275 TraceCheckUtils]: 31: Hoare quadruple {2436#true} {2593#(<= |fibo2_#in~n| fibo2_~n)} #53#return; {2593#(<= |fibo2_#in~n| fibo2_~n)} is VALID [2020-07-08 12:13:58,614 INFO L280 TraceCheckUtils]: 32: Hoare triple {2593#(<= |fibo2_#in~n| fibo2_~n)} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {2593#(<= |fibo2_#in~n| fibo2_~n)} is VALID [2020-07-08 12:13:58,615 INFO L263 TraceCheckUtils]: 33: Hoare triple {2593#(<= |fibo2_#in~n| fibo2_~n)} call #t~ret3 := fibo1(~n - 2); {2436#true} is VALID [2020-07-08 12:13:58,615 INFO L280 TraceCheckUtils]: 34: Hoare triple {2436#true} ~n := #in~n; {2580#(<= |fibo1_#in~n| fibo1_~n)} is VALID [2020-07-08 12:13:58,616 INFO L280 TraceCheckUtils]: 35: Hoare triple {2580#(<= |fibo1_#in~n| fibo1_~n)} assume ~n < 1;#res := 0; {2558#(<= |fibo1_#in~n| 0)} is VALID [2020-07-08 12:13:58,617 INFO L280 TraceCheckUtils]: 36: Hoare triple {2558#(<= |fibo1_#in~n| 0)} assume true; {2558#(<= |fibo1_#in~n| 0)} is VALID [2020-07-08 12:13:58,618 INFO L275 TraceCheckUtils]: 37: Hoare quadruple {2558#(<= |fibo1_#in~n| 0)} {2593#(<= |fibo2_#in~n| fibo2_~n)} #55#return; {2675#(<= |fibo2_#in~n| 2)} is VALID [2020-07-08 12:13:58,618 INFO L280 TraceCheckUtils]: 38: Hoare triple {2675#(<= |fibo2_#in~n| 2)} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647;#res := #t~ret2 + #t~ret3;havoc #t~ret2;havoc #t~ret3; {2675#(<= |fibo2_#in~n| 2)} is VALID [2020-07-08 12:13:58,619 INFO L280 TraceCheckUtils]: 39: Hoare triple {2675#(<= |fibo2_#in~n| 2)} assume true; {2675#(<= |fibo2_#in~n| 2)} is VALID [2020-07-08 12:13:58,620 INFO L275 TraceCheckUtils]: 40: Hoare quadruple {2675#(<= |fibo2_#in~n| 2)} {2580#(<= |fibo1_#in~n| fibo1_~n)} #57#return; {2685#(<= |fibo1_#in~n| 3)} is VALID [2020-07-08 12:13:58,621 INFO L280 TraceCheckUtils]: 41: Hoare triple {2685#(<= |fibo1_#in~n| 3)} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {2685#(<= |fibo1_#in~n| 3)} is VALID [2020-07-08 12:13:58,621 INFO L263 TraceCheckUtils]: 42: Hoare triple {2685#(<= |fibo1_#in~n| 3)} call #t~ret1 := fibo2(~n - 2); {2436#true} is VALID [2020-07-08 12:13:58,621 INFO L280 TraceCheckUtils]: 43: Hoare triple {2436#true} ~n := #in~n; {2436#true} is VALID [2020-07-08 12:13:58,621 INFO L280 TraceCheckUtils]: 44: Hoare triple {2436#true} assume !(~n < 1); {2436#true} is VALID [2020-07-08 12:13:58,622 INFO L280 TraceCheckUtils]: 45: Hoare triple {2436#true} assume 1 == ~n;#res := 1; {2436#true} is VALID [2020-07-08 12:13:58,622 INFO L280 TraceCheckUtils]: 46: Hoare triple {2436#true} assume true; {2436#true} is VALID [2020-07-08 12:13:58,623 INFO L275 TraceCheckUtils]: 47: Hoare quadruple {2436#true} {2685#(<= |fibo1_#in~n| 3)} #59#return; {2685#(<= |fibo1_#in~n| 3)} is VALID [2020-07-08 12:13:58,624 INFO L280 TraceCheckUtils]: 48: Hoare triple {2685#(<= |fibo1_#in~n| 3)} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647;#res := #t~ret0 + #t~ret1;havoc #t~ret0;havoc #t~ret1; {2685#(<= |fibo1_#in~n| 3)} is VALID [2020-07-08 12:13:58,624 INFO L280 TraceCheckUtils]: 49: Hoare triple {2685#(<= |fibo1_#in~n| 3)} assume true; {2685#(<= |fibo1_#in~n| 3)} is VALID [2020-07-08 12:13:58,626 INFO L275 TraceCheckUtils]: 50: Hoare quadruple {2685#(<= |fibo1_#in~n| 3)} {2440#(<= 4 main_~x~0)} #51#return; {2437#false} is VALID [2020-07-08 12:13:58,626 INFO L280 TraceCheckUtils]: 51: Hoare triple {2437#false} assume -2147483648 <= #t~ret4 && #t~ret4 <= 2147483647;~result~0 := #t~ret4;havoc #t~ret4; {2437#false} is VALID [2020-07-08 12:13:58,626 INFO L280 TraceCheckUtils]: 52: Hoare triple {2437#false} assume 3 != ~result~0; {2437#false} is VALID [2020-07-08 12:13:58,626 INFO L280 TraceCheckUtils]: 53: Hoare triple {2437#false} assume !false; {2437#false} is VALID [2020-07-08 12:13:58,628 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 12 proven. 12 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-07-08 12:13:58,629 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-08 12:13:58,629 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 13 [2020-07-08 12:13:58,629 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555366807] [2020-07-08 12:13:58,630 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 54 [2020-07-08 12:13:58,631 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 12:13:58,631 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 13 states. [2020-07-08 12:13:58,710 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 73 edges. 73 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 12:13:58,711 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-07-08 12:13:58,711 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-08 12:13:58,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-07-08 12:13:58,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-07-08 12:13:58,711 INFO L87 Difference]: Start difference. First operand 106 states and 169 transitions. Second operand 13 states. [2020-07-08 12:13:59,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 12:13:59,948 INFO L93 Difference]: Finished difference Result 265 states and 511 transitions. [2020-07-08 12:13:59,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-07-08 12:13:59,948 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 54 [2020-07-08 12:13:59,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 12:13:59,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-07-08 12:13:59,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 122 transitions. [2020-07-08 12:13:59,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-07-08 12:13:59,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 122 transitions. [2020-07-08 12:13:59,956 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 15 states and 122 transitions. [2020-07-08 12:14:00,112 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 122 edges. 122 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 12:14:00,121 INFO L225 Difference]: With dead ends: 265 [2020-07-08 12:14:00,121 INFO L226 Difference]: Without dead ends: 165 [2020-07-08 12:14:00,123 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=67, Invalid=275, Unknown=0, NotChecked=0, Total=342 [2020-07-08 12:14:00,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2020-07-08 12:14:00,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 142. [2020-07-08 12:14:00,235 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 12:14:00,235 INFO L82 GeneralOperation]: Start isEquivalent. First operand 165 states. Second operand 142 states. [2020-07-08 12:14:00,235 INFO L74 IsIncluded]: Start isIncluded. First operand 165 states. Second operand 142 states. [2020-07-08 12:14:00,235 INFO L87 Difference]: Start difference. First operand 165 states. Second operand 142 states. [2020-07-08 12:14:00,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 12:14:00,249 INFO L93 Difference]: Finished difference Result 165 states and 285 transitions. [2020-07-08 12:14:00,249 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 285 transitions. [2020-07-08 12:14:00,251 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 12:14:00,251 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 12:14:00,251 INFO L74 IsIncluded]: Start isIncluded. First operand 142 states. Second operand 165 states. [2020-07-08 12:14:00,251 INFO L87 Difference]: Start difference. First operand 142 states. Second operand 165 states. [2020-07-08 12:14:00,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 12:14:00,265 INFO L93 Difference]: Finished difference Result 165 states and 285 transitions. [2020-07-08 12:14:00,265 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 285 transitions. [2020-07-08 12:14:00,267 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 12:14:00,267 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 12:14:00,267 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 12:14:00,267 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 12:14:00,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2020-07-08 12:14:00,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 244 transitions. [2020-07-08 12:14:00,277 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 244 transitions. Word has length 54 [2020-07-08 12:14:00,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 12:14:00,277 INFO L479 AbstractCegarLoop]: Abstraction has 142 states and 244 transitions. [2020-07-08 12:14:00,277 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-07-08 12:14:00,277 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 244 transitions. [2020-07-08 12:14:00,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-07-08 12:14:00,279 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 12:14:00,279 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] [2020-07-08 12:14:00,492 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2020-07-08 12:14:00,493 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 12:14:00,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 12:14:00,493 INFO L82 PathProgramCache]: Analyzing trace with hash -242988780, now seen corresponding path program 1 times [2020-07-08 12:14:00,493 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-08 12:14:00,493 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182790432] [2020-07-08 12:14:00,494 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 12:14:00,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:14:00,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:14:00,561 INFO L280 TraceCheckUtils]: 0: Hoare triple {3595#true} assume true; {3595#true} is VALID [2020-07-08 12:14:00,561 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {3595#true} {3595#true} #47#return; {3595#true} is VALID [2020-07-08 12:14:00,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:14:00,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:14:00,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:14:00,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:14:00,740 INFO L280 TraceCheckUtils]: 0: Hoare triple {3595#true} ~n := #in~n; {3595#true} is VALID [2020-07-08 12:14:00,740 INFO L280 TraceCheckUtils]: 1: Hoare triple {3595#true} assume !(~n < 1); {3595#true} is VALID [2020-07-08 12:14:00,740 INFO L280 TraceCheckUtils]: 2: Hoare triple {3595#true} assume 1 == ~n;#res := 1; {3595#true} is VALID [2020-07-08 12:14:00,741 INFO L280 TraceCheckUtils]: 3: Hoare triple {3595#true} assume true; {3595#true} is VALID [2020-07-08 12:14:00,741 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {3595#true} {3712#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} #57#return; {3712#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 12:14:00,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:14:00,746 INFO L280 TraceCheckUtils]: 0: Hoare triple {3595#true} ~n := #in~n; {3595#true} is VALID [2020-07-08 12:14:00,747 INFO L280 TraceCheckUtils]: 1: Hoare triple {3595#true} assume ~n < 1;#res := 0; {3595#true} is VALID [2020-07-08 12:14:00,747 INFO L280 TraceCheckUtils]: 2: Hoare triple {3595#true} assume true; {3595#true} is VALID [2020-07-08 12:14:00,749 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {3595#true} {3712#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} #59#return; {3722#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 12:14:00,750 INFO L280 TraceCheckUtils]: 0: Hoare triple {3595#true} ~n := #in~n; {3710#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 12:14:00,751 INFO L280 TraceCheckUtils]: 1: Hoare triple {3710#(= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {3711#(and (< 0 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 12:14:00,752 INFO L280 TraceCheckUtils]: 2: Hoare triple {3711#(and (< 0 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} assume !(1 == ~n); {3712#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 12:14:00,753 INFO L263 TraceCheckUtils]: 3: Hoare triple {3712#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} call #t~ret0 := fibo2(~n - 1); {3595#true} is VALID [2020-07-08 12:14:00,753 INFO L280 TraceCheckUtils]: 4: Hoare triple {3595#true} ~n := #in~n; {3595#true} is VALID [2020-07-08 12:14:00,753 INFO L280 TraceCheckUtils]: 5: Hoare triple {3595#true} assume !(~n < 1); {3595#true} is VALID [2020-07-08 12:14:00,754 INFO L280 TraceCheckUtils]: 6: Hoare triple {3595#true} assume 1 == ~n;#res := 1; {3595#true} is VALID [2020-07-08 12:14:00,754 INFO L280 TraceCheckUtils]: 7: Hoare triple {3595#true} assume true; {3595#true} is VALID [2020-07-08 12:14:00,755 INFO L275 TraceCheckUtils]: 8: Hoare quadruple {3595#true} {3712#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} #57#return; {3712#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 12:14:00,756 INFO L280 TraceCheckUtils]: 9: Hoare triple {3712#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {3712#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 12:14:00,756 INFO L263 TraceCheckUtils]: 10: Hoare triple {3712#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} call #t~ret1 := fibo2(~n - 2); {3595#true} is VALID [2020-07-08 12:14:00,757 INFO L280 TraceCheckUtils]: 11: Hoare triple {3595#true} ~n := #in~n; {3595#true} is VALID [2020-07-08 12:14:00,757 INFO L280 TraceCheckUtils]: 12: Hoare triple {3595#true} assume ~n < 1;#res := 0; {3595#true} is VALID [2020-07-08 12:14:00,757 INFO L280 TraceCheckUtils]: 13: Hoare triple {3595#true} assume true; {3595#true} is VALID [2020-07-08 12:14:00,759 INFO L275 TraceCheckUtils]: 14: Hoare quadruple {3595#true} {3712#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} #59#return; {3722#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 12:14:00,760 INFO L280 TraceCheckUtils]: 15: Hoare triple {3722#(<= 2 |fibo1_#in~n|)} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647;#res := #t~ret0 + #t~ret1;havoc #t~ret0;havoc #t~ret1; {3722#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 12:14:00,761 INFO L280 TraceCheckUtils]: 16: Hoare triple {3722#(<= 2 |fibo1_#in~n|)} assume true; {3722#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 12:14:00,762 INFO L275 TraceCheckUtils]: 17: Hoare quadruple {3722#(<= 2 |fibo1_#in~n|)} {3684#(= fibo2_~n |fibo2_#in~n|)} #53#return; {3703#(and (= fibo2_~n |fibo2_#in~n|) (<= 3 fibo2_~n))} is VALID [2020-07-08 12:14:00,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:14:00,768 INFO L280 TraceCheckUtils]: 0: Hoare triple {3595#true} ~n := #in~n; {3595#true} is VALID [2020-07-08 12:14:00,769 INFO L280 TraceCheckUtils]: 1: Hoare triple {3595#true} assume !(~n < 1); {3595#true} is VALID [2020-07-08 12:14:00,769 INFO L280 TraceCheckUtils]: 2: Hoare triple {3595#true} assume 1 == ~n;#res := 1; {3595#true} is VALID [2020-07-08 12:14:00,769 INFO L280 TraceCheckUtils]: 3: Hoare triple {3595#true} assume true; {3595#true} is VALID [2020-07-08 12:14:00,770 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {3595#true} {3703#(and (= fibo2_~n |fibo2_#in~n|) (<= 3 fibo2_~n))} #55#return; {3709#(<= 3 |fibo2_#in~n|)} is VALID [2020-07-08 12:14:00,771 INFO L280 TraceCheckUtils]: 0: Hoare triple {3595#true} ~n := #in~n; {3684#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 12:14:00,772 INFO L280 TraceCheckUtils]: 1: Hoare triple {3684#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {3684#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 12:14:00,773 INFO L280 TraceCheckUtils]: 2: Hoare triple {3684#(= fibo2_~n |fibo2_#in~n|)} assume !(1 == ~n); {3684#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 12:14:00,773 INFO L263 TraceCheckUtils]: 3: Hoare triple {3684#(= fibo2_~n |fibo2_#in~n|)} call #t~ret2 := fibo1(~n - 1); {3595#true} is VALID [2020-07-08 12:14:00,774 INFO L280 TraceCheckUtils]: 4: Hoare triple {3595#true} ~n := #in~n; {3710#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 12:14:00,775 INFO L280 TraceCheckUtils]: 5: Hoare triple {3710#(= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {3711#(and (< 0 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 12:14:00,776 INFO L280 TraceCheckUtils]: 6: Hoare triple {3711#(and (< 0 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} assume !(1 == ~n); {3712#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 12:14:00,776 INFO L263 TraceCheckUtils]: 7: Hoare triple {3712#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} call #t~ret0 := fibo2(~n - 1); {3595#true} is VALID [2020-07-08 12:14:00,777 INFO L280 TraceCheckUtils]: 8: Hoare triple {3595#true} ~n := #in~n; {3595#true} is VALID [2020-07-08 12:14:00,777 INFO L280 TraceCheckUtils]: 9: Hoare triple {3595#true} assume !(~n < 1); {3595#true} is VALID [2020-07-08 12:14:00,777 INFO L280 TraceCheckUtils]: 10: Hoare triple {3595#true} assume 1 == ~n;#res := 1; {3595#true} is VALID [2020-07-08 12:14:00,777 INFO L280 TraceCheckUtils]: 11: Hoare triple {3595#true} assume true; {3595#true} is VALID [2020-07-08 12:14:00,779 INFO L275 TraceCheckUtils]: 12: Hoare quadruple {3595#true} {3712#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} #57#return; {3712#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 12:14:00,780 INFO L280 TraceCheckUtils]: 13: Hoare triple {3712#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {3712#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 12:14:00,780 INFO L263 TraceCheckUtils]: 14: Hoare triple {3712#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} call #t~ret1 := fibo2(~n - 2); {3595#true} is VALID [2020-07-08 12:14:00,780 INFO L280 TraceCheckUtils]: 15: Hoare triple {3595#true} ~n := #in~n; {3595#true} is VALID [2020-07-08 12:14:00,781 INFO L280 TraceCheckUtils]: 16: Hoare triple {3595#true} assume ~n < 1;#res := 0; {3595#true} is VALID [2020-07-08 12:14:00,781 INFO L280 TraceCheckUtils]: 17: Hoare triple {3595#true} assume true; {3595#true} is VALID [2020-07-08 12:14:00,783 INFO L275 TraceCheckUtils]: 18: Hoare quadruple {3595#true} {3712#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} #59#return; {3722#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 12:14:00,783 INFO L280 TraceCheckUtils]: 19: Hoare triple {3722#(<= 2 |fibo1_#in~n|)} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647;#res := #t~ret0 + #t~ret1;havoc #t~ret0;havoc #t~ret1; {3722#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 12:14:00,784 INFO L280 TraceCheckUtils]: 20: Hoare triple {3722#(<= 2 |fibo1_#in~n|)} assume true; {3722#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 12:14:00,786 INFO L275 TraceCheckUtils]: 21: Hoare quadruple {3722#(<= 2 |fibo1_#in~n|)} {3684#(= fibo2_~n |fibo2_#in~n|)} #53#return; {3703#(and (= fibo2_~n |fibo2_#in~n|) (<= 3 fibo2_~n))} is VALID [2020-07-08 12:14:00,786 INFO L280 TraceCheckUtils]: 22: Hoare triple {3703#(and (= fibo2_~n |fibo2_#in~n|) (<= 3 fibo2_~n))} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {3703#(and (= fibo2_~n |fibo2_#in~n|) (<= 3 fibo2_~n))} is VALID [2020-07-08 12:14:00,787 INFO L263 TraceCheckUtils]: 23: Hoare triple {3703#(and (= fibo2_~n |fibo2_#in~n|) (<= 3 fibo2_~n))} call #t~ret3 := fibo1(~n - 2); {3595#true} is VALID [2020-07-08 12:14:00,787 INFO L280 TraceCheckUtils]: 24: Hoare triple {3595#true} ~n := #in~n; {3595#true} is VALID [2020-07-08 12:14:00,787 INFO L280 TraceCheckUtils]: 25: Hoare triple {3595#true} assume !(~n < 1); {3595#true} is VALID [2020-07-08 12:14:00,787 INFO L280 TraceCheckUtils]: 26: Hoare triple {3595#true} assume 1 == ~n;#res := 1; {3595#true} is VALID [2020-07-08 12:14:00,788 INFO L280 TraceCheckUtils]: 27: Hoare triple {3595#true} assume true; {3595#true} is VALID [2020-07-08 12:14:00,789 INFO L275 TraceCheckUtils]: 28: Hoare quadruple {3595#true} {3703#(and (= fibo2_~n |fibo2_#in~n|) (<= 3 fibo2_~n))} #55#return; {3709#(<= 3 |fibo2_#in~n|)} is VALID [2020-07-08 12:14:00,789 INFO L280 TraceCheckUtils]: 29: Hoare triple {3709#(<= 3 |fibo2_#in~n|)} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647;#res := #t~ret2 + #t~ret3;havoc #t~ret2;havoc #t~ret3; {3709#(<= 3 |fibo2_#in~n|)} is VALID [2020-07-08 12:14:00,790 INFO L280 TraceCheckUtils]: 30: Hoare triple {3709#(<= 3 |fibo2_#in~n|)} assume true; {3709#(<= 3 |fibo2_#in~n|)} is VALID [2020-07-08 12:14:00,791 INFO L275 TraceCheckUtils]: 31: Hoare quadruple {3709#(<= 3 |fibo2_#in~n|)} {3595#true} #57#return; {3678#(<= 4 fibo1_~n)} is VALID [2020-07-08 12:14:00,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:14:00,811 INFO L280 TraceCheckUtils]: 0: Hoare triple {3595#true} ~n := #in~n; {3684#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 12:14:00,812 INFO L280 TraceCheckUtils]: 1: Hoare triple {3684#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {3684#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 12:14:00,813 INFO L280 TraceCheckUtils]: 2: Hoare triple {3684#(= fibo2_~n |fibo2_#in~n|)} assume 1 == ~n;#res := 1; {3723#(<= |fibo2_#in~n| 1)} is VALID [2020-07-08 12:14:00,813 INFO L280 TraceCheckUtils]: 3: Hoare triple {3723#(<= |fibo2_#in~n| 1)} assume true; {3723#(<= |fibo2_#in~n| 1)} is VALID [2020-07-08 12:14:00,815 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {3723#(<= |fibo2_#in~n| 1)} {3678#(<= 4 fibo1_~n)} #59#return; {3596#false} is VALID [2020-07-08 12:14:00,815 INFO L280 TraceCheckUtils]: 0: Hoare triple {3595#true} ~n := #in~n; {3595#true} is VALID [2020-07-08 12:14:00,815 INFO L280 TraceCheckUtils]: 1: Hoare triple {3595#true} assume !(~n < 1); {3595#true} is VALID [2020-07-08 12:14:00,815 INFO L280 TraceCheckUtils]: 2: Hoare triple {3595#true} assume !(1 == ~n); {3595#true} is VALID [2020-07-08 12:14:00,816 INFO L263 TraceCheckUtils]: 3: Hoare triple {3595#true} call #t~ret0 := fibo2(~n - 1); {3595#true} is VALID [2020-07-08 12:14:00,816 INFO L280 TraceCheckUtils]: 4: Hoare triple {3595#true} ~n := #in~n; {3684#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 12:14:00,817 INFO L280 TraceCheckUtils]: 5: Hoare triple {3684#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {3684#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 12:14:00,818 INFO L280 TraceCheckUtils]: 6: Hoare triple {3684#(= fibo2_~n |fibo2_#in~n|)} assume !(1 == ~n); {3684#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 12:14:00,818 INFO L263 TraceCheckUtils]: 7: Hoare triple {3684#(= fibo2_~n |fibo2_#in~n|)} call #t~ret2 := fibo1(~n - 1); {3595#true} is VALID [2020-07-08 12:14:00,818 INFO L280 TraceCheckUtils]: 8: Hoare triple {3595#true} ~n := #in~n; {3710#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 12:14:00,819 INFO L280 TraceCheckUtils]: 9: Hoare triple {3710#(= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {3711#(and (< 0 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 12:14:00,820 INFO L280 TraceCheckUtils]: 10: Hoare triple {3711#(and (< 0 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} assume !(1 == ~n); {3712#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 12:14:00,820 INFO L263 TraceCheckUtils]: 11: Hoare triple {3712#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} call #t~ret0 := fibo2(~n - 1); {3595#true} is VALID [2020-07-08 12:14:00,821 INFO L280 TraceCheckUtils]: 12: Hoare triple {3595#true} ~n := #in~n; {3595#true} is VALID [2020-07-08 12:14:00,821 INFO L280 TraceCheckUtils]: 13: Hoare triple {3595#true} assume !(~n < 1); {3595#true} is VALID [2020-07-08 12:14:00,821 INFO L280 TraceCheckUtils]: 14: Hoare triple {3595#true} assume 1 == ~n;#res := 1; {3595#true} is VALID [2020-07-08 12:14:00,821 INFO L280 TraceCheckUtils]: 15: Hoare triple {3595#true} assume true; {3595#true} is VALID [2020-07-08 12:14:00,822 INFO L275 TraceCheckUtils]: 16: Hoare quadruple {3595#true} {3712#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} #57#return; {3712#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 12:14:00,823 INFO L280 TraceCheckUtils]: 17: Hoare triple {3712#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {3712#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 12:14:00,823 INFO L263 TraceCheckUtils]: 18: Hoare triple {3712#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} call #t~ret1 := fibo2(~n - 2); {3595#true} is VALID [2020-07-08 12:14:00,823 INFO L280 TraceCheckUtils]: 19: Hoare triple {3595#true} ~n := #in~n; {3595#true} is VALID [2020-07-08 12:14:00,823 INFO L280 TraceCheckUtils]: 20: Hoare triple {3595#true} assume ~n < 1;#res := 0; {3595#true} is VALID [2020-07-08 12:14:00,824 INFO L280 TraceCheckUtils]: 21: Hoare triple {3595#true} assume true; {3595#true} is VALID [2020-07-08 12:14:00,825 INFO L275 TraceCheckUtils]: 22: Hoare quadruple {3595#true} {3712#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} #59#return; {3722#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 12:14:00,825 INFO L280 TraceCheckUtils]: 23: Hoare triple {3722#(<= 2 |fibo1_#in~n|)} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647;#res := #t~ret0 + #t~ret1;havoc #t~ret0;havoc #t~ret1; {3722#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 12:14:00,826 INFO L280 TraceCheckUtils]: 24: Hoare triple {3722#(<= 2 |fibo1_#in~n|)} assume true; {3722#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 12:14:00,827 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {3722#(<= 2 |fibo1_#in~n|)} {3684#(= fibo2_~n |fibo2_#in~n|)} #53#return; {3703#(and (= fibo2_~n |fibo2_#in~n|) (<= 3 fibo2_~n))} is VALID [2020-07-08 12:14:00,828 INFO L280 TraceCheckUtils]: 26: Hoare triple {3703#(and (= fibo2_~n |fibo2_#in~n|) (<= 3 fibo2_~n))} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {3703#(and (= fibo2_~n |fibo2_#in~n|) (<= 3 fibo2_~n))} is VALID [2020-07-08 12:14:00,828 INFO L263 TraceCheckUtils]: 27: Hoare triple {3703#(and (= fibo2_~n |fibo2_#in~n|) (<= 3 fibo2_~n))} call #t~ret3 := fibo1(~n - 2); {3595#true} is VALID [2020-07-08 12:14:00,828 INFO L280 TraceCheckUtils]: 28: Hoare triple {3595#true} ~n := #in~n; {3595#true} is VALID [2020-07-08 12:14:00,828 INFO L280 TraceCheckUtils]: 29: Hoare triple {3595#true} assume !(~n < 1); {3595#true} is VALID [2020-07-08 12:14:00,829 INFO L280 TraceCheckUtils]: 30: Hoare triple {3595#true} assume 1 == ~n;#res := 1; {3595#true} is VALID [2020-07-08 12:14:00,829 INFO L280 TraceCheckUtils]: 31: Hoare triple {3595#true} assume true; {3595#true} is VALID [2020-07-08 12:14:00,830 INFO L275 TraceCheckUtils]: 32: Hoare quadruple {3595#true} {3703#(and (= fibo2_~n |fibo2_#in~n|) (<= 3 fibo2_~n))} #55#return; {3709#(<= 3 |fibo2_#in~n|)} is VALID [2020-07-08 12:14:00,831 INFO L280 TraceCheckUtils]: 33: Hoare triple {3709#(<= 3 |fibo2_#in~n|)} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647;#res := #t~ret2 + #t~ret3;havoc #t~ret2;havoc #t~ret3; {3709#(<= 3 |fibo2_#in~n|)} is VALID [2020-07-08 12:14:00,831 INFO L280 TraceCheckUtils]: 34: Hoare triple {3709#(<= 3 |fibo2_#in~n|)} assume true; {3709#(<= 3 |fibo2_#in~n|)} is VALID [2020-07-08 12:14:00,832 INFO L275 TraceCheckUtils]: 35: Hoare quadruple {3709#(<= 3 |fibo2_#in~n|)} {3595#true} #57#return; {3678#(<= 4 fibo1_~n)} is VALID [2020-07-08 12:14:00,833 INFO L280 TraceCheckUtils]: 36: Hoare triple {3678#(<= 4 fibo1_~n)} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {3678#(<= 4 fibo1_~n)} is VALID [2020-07-08 12:14:00,833 INFO L263 TraceCheckUtils]: 37: Hoare triple {3678#(<= 4 fibo1_~n)} call #t~ret1 := fibo2(~n - 2); {3595#true} is VALID [2020-07-08 12:14:00,834 INFO L280 TraceCheckUtils]: 38: Hoare triple {3595#true} ~n := #in~n; {3684#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 12:14:00,834 INFO L280 TraceCheckUtils]: 39: Hoare triple {3684#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {3684#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 12:14:00,835 INFO L280 TraceCheckUtils]: 40: Hoare triple {3684#(= fibo2_~n |fibo2_#in~n|)} assume 1 == ~n;#res := 1; {3723#(<= |fibo2_#in~n| 1)} is VALID [2020-07-08 12:14:00,836 INFO L280 TraceCheckUtils]: 41: Hoare triple {3723#(<= |fibo2_#in~n| 1)} assume true; {3723#(<= |fibo2_#in~n| 1)} is VALID [2020-07-08 12:14:00,837 INFO L275 TraceCheckUtils]: 42: Hoare quadruple {3723#(<= |fibo2_#in~n| 1)} {3678#(<= 4 fibo1_~n)} #59#return; {3596#false} is VALID [2020-07-08 12:14:00,837 INFO L280 TraceCheckUtils]: 43: Hoare triple {3596#false} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647;#res := #t~ret0 + #t~ret1;havoc #t~ret0;havoc #t~ret1; {3596#false} is VALID [2020-07-08 12:14:00,838 INFO L280 TraceCheckUtils]: 44: Hoare triple {3596#false} assume true; {3596#false} is VALID [2020-07-08 12:14:00,838 INFO L275 TraceCheckUtils]: 45: Hoare quadruple {3596#false} {3599#(<= 4 main_~x~0)} #51#return; {3596#false} is VALID [2020-07-08 12:14:00,842 INFO L263 TraceCheckUtils]: 0: Hoare triple {3595#true} call ULTIMATE.init(); {3595#true} is VALID [2020-07-08 12:14:00,842 INFO L280 TraceCheckUtils]: 1: Hoare triple {3595#true} assume true; {3595#true} is VALID [2020-07-08 12:14:00,842 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {3595#true} {3595#true} #47#return; {3595#true} is VALID [2020-07-08 12:14:00,843 INFO L263 TraceCheckUtils]: 3: Hoare triple {3595#true} call #t~ret5 := main(); {3595#true} is VALID [2020-07-08 12:14:00,844 INFO L280 TraceCheckUtils]: 4: Hoare triple {3595#true} ~x~0 := 4; {3599#(<= 4 main_~x~0)} is VALID [2020-07-08 12:14:00,844 INFO L263 TraceCheckUtils]: 5: Hoare triple {3599#(<= 4 main_~x~0)} call #t~ret4 := fibo1(~x~0); {3595#true} is VALID [2020-07-08 12:14:00,844 INFO L280 TraceCheckUtils]: 6: Hoare triple {3595#true} ~n := #in~n; {3595#true} is VALID [2020-07-08 12:14:00,845 INFO L280 TraceCheckUtils]: 7: Hoare triple {3595#true} assume !(~n < 1); {3595#true} is VALID [2020-07-08 12:14:00,845 INFO L280 TraceCheckUtils]: 8: Hoare triple {3595#true} assume !(1 == ~n); {3595#true} is VALID [2020-07-08 12:14:00,845 INFO L263 TraceCheckUtils]: 9: Hoare triple {3595#true} call #t~ret0 := fibo2(~n - 1); {3595#true} is VALID [2020-07-08 12:14:00,846 INFO L280 TraceCheckUtils]: 10: Hoare triple {3595#true} ~n := #in~n; {3684#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 12:14:00,846 INFO L280 TraceCheckUtils]: 11: Hoare triple {3684#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {3684#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 12:14:00,847 INFO L280 TraceCheckUtils]: 12: Hoare triple {3684#(= fibo2_~n |fibo2_#in~n|)} assume !(1 == ~n); {3684#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 12:14:00,847 INFO L263 TraceCheckUtils]: 13: Hoare triple {3684#(= fibo2_~n |fibo2_#in~n|)} call #t~ret2 := fibo1(~n - 1); {3595#true} is VALID [2020-07-08 12:14:00,848 INFO L280 TraceCheckUtils]: 14: Hoare triple {3595#true} ~n := #in~n; {3710#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 12:14:00,849 INFO L280 TraceCheckUtils]: 15: Hoare triple {3710#(= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {3711#(and (< 0 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 12:14:00,850 INFO L280 TraceCheckUtils]: 16: Hoare triple {3711#(and (< 0 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} assume !(1 == ~n); {3712#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 12:14:00,850 INFO L263 TraceCheckUtils]: 17: Hoare triple {3712#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} call #t~ret0 := fibo2(~n - 1); {3595#true} is VALID [2020-07-08 12:14:00,850 INFO L280 TraceCheckUtils]: 18: Hoare triple {3595#true} ~n := #in~n; {3595#true} is VALID [2020-07-08 12:14:00,851 INFO L280 TraceCheckUtils]: 19: Hoare triple {3595#true} assume !(~n < 1); {3595#true} is VALID [2020-07-08 12:14:00,851 INFO L280 TraceCheckUtils]: 20: Hoare triple {3595#true} assume 1 == ~n;#res := 1; {3595#true} is VALID [2020-07-08 12:14:00,851 INFO L280 TraceCheckUtils]: 21: Hoare triple {3595#true} assume true; {3595#true} is VALID [2020-07-08 12:14:00,852 INFO L275 TraceCheckUtils]: 22: Hoare quadruple {3595#true} {3712#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} #57#return; {3712#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 12:14:00,853 INFO L280 TraceCheckUtils]: 23: Hoare triple {3712#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {3712#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 12:14:00,853 INFO L263 TraceCheckUtils]: 24: Hoare triple {3712#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} call #t~ret1 := fibo2(~n - 2); {3595#true} is VALID [2020-07-08 12:14:00,854 INFO L280 TraceCheckUtils]: 25: Hoare triple {3595#true} ~n := #in~n; {3595#true} is VALID [2020-07-08 12:14:00,854 INFO L280 TraceCheckUtils]: 26: Hoare triple {3595#true} assume ~n < 1;#res := 0; {3595#true} is VALID [2020-07-08 12:14:00,854 INFO L280 TraceCheckUtils]: 27: Hoare triple {3595#true} assume true; {3595#true} is VALID [2020-07-08 12:14:00,855 INFO L275 TraceCheckUtils]: 28: Hoare quadruple {3595#true} {3712#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} #59#return; {3722#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 12:14:00,856 INFO L280 TraceCheckUtils]: 29: Hoare triple {3722#(<= 2 |fibo1_#in~n|)} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647;#res := #t~ret0 + #t~ret1;havoc #t~ret0;havoc #t~ret1; {3722#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 12:14:00,857 INFO L280 TraceCheckUtils]: 30: Hoare triple {3722#(<= 2 |fibo1_#in~n|)} assume true; {3722#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 12:14:00,858 INFO L275 TraceCheckUtils]: 31: Hoare quadruple {3722#(<= 2 |fibo1_#in~n|)} {3684#(= fibo2_~n |fibo2_#in~n|)} #53#return; {3703#(and (= fibo2_~n |fibo2_#in~n|) (<= 3 fibo2_~n))} is VALID [2020-07-08 12:14:00,859 INFO L280 TraceCheckUtils]: 32: Hoare triple {3703#(and (= fibo2_~n |fibo2_#in~n|) (<= 3 fibo2_~n))} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {3703#(and (= fibo2_~n |fibo2_#in~n|) (<= 3 fibo2_~n))} is VALID [2020-07-08 12:14:00,859 INFO L263 TraceCheckUtils]: 33: Hoare triple {3703#(and (= fibo2_~n |fibo2_#in~n|) (<= 3 fibo2_~n))} call #t~ret3 := fibo1(~n - 2); {3595#true} is VALID [2020-07-08 12:14:00,860 INFO L280 TraceCheckUtils]: 34: Hoare triple {3595#true} ~n := #in~n; {3595#true} is VALID [2020-07-08 12:14:00,860 INFO L280 TraceCheckUtils]: 35: Hoare triple {3595#true} assume !(~n < 1); {3595#true} is VALID [2020-07-08 12:14:00,860 INFO L280 TraceCheckUtils]: 36: Hoare triple {3595#true} assume 1 == ~n;#res := 1; {3595#true} is VALID [2020-07-08 12:14:00,860 INFO L280 TraceCheckUtils]: 37: Hoare triple {3595#true} assume true; {3595#true} is VALID [2020-07-08 12:14:00,861 INFO L275 TraceCheckUtils]: 38: Hoare quadruple {3595#true} {3703#(and (= fibo2_~n |fibo2_#in~n|) (<= 3 fibo2_~n))} #55#return; {3709#(<= 3 |fibo2_#in~n|)} is VALID [2020-07-08 12:14:00,862 INFO L280 TraceCheckUtils]: 39: Hoare triple {3709#(<= 3 |fibo2_#in~n|)} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647;#res := #t~ret2 + #t~ret3;havoc #t~ret2;havoc #t~ret3; {3709#(<= 3 |fibo2_#in~n|)} is VALID [2020-07-08 12:14:00,863 INFO L280 TraceCheckUtils]: 40: Hoare triple {3709#(<= 3 |fibo2_#in~n|)} assume true; {3709#(<= 3 |fibo2_#in~n|)} is VALID [2020-07-08 12:14:00,864 INFO L275 TraceCheckUtils]: 41: Hoare quadruple {3709#(<= 3 |fibo2_#in~n|)} {3595#true} #57#return; {3678#(<= 4 fibo1_~n)} is VALID [2020-07-08 12:14:00,864 INFO L280 TraceCheckUtils]: 42: Hoare triple {3678#(<= 4 fibo1_~n)} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {3678#(<= 4 fibo1_~n)} is VALID [2020-07-08 12:14:00,865 INFO L263 TraceCheckUtils]: 43: Hoare triple {3678#(<= 4 fibo1_~n)} call #t~ret1 := fibo2(~n - 2); {3595#true} is VALID [2020-07-08 12:14:00,865 INFO L280 TraceCheckUtils]: 44: Hoare triple {3595#true} ~n := #in~n; {3684#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 12:14:00,866 INFO L280 TraceCheckUtils]: 45: Hoare triple {3684#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {3684#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 12:14:00,867 INFO L280 TraceCheckUtils]: 46: Hoare triple {3684#(= fibo2_~n |fibo2_#in~n|)} assume 1 == ~n;#res := 1; {3723#(<= |fibo2_#in~n| 1)} is VALID [2020-07-08 12:14:00,867 INFO L280 TraceCheckUtils]: 47: Hoare triple {3723#(<= |fibo2_#in~n| 1)} assume true; {3723#(<= |fibo2_#in~n| 1)} is VALID [2020-07-08 12:14:00,868 INFO L275 TraceCheckUtils]: 48: Hoare quadruple {3723#(<= |fibo2_#in~n| 1)} {3678#(<= 4 fibo1_~n)} #59#return; {3596#false} is VALID [2020-07-08 12:14:00,869 INFO L280 TraceCheckUtils]: 49: Hoare triple {3596#false} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647;#res := #t~ret0 + #t~ret1;havoc #t~ret0;havoc #t~ret1; {3596#false} is VALID [2020-07-08 12:14:00,869 INFO L280 TraceCheckUtils]: 50: Hoare triple {3596#false} assume true; {3596#false} is VALID [2020-07-08 12:14:00,869 INFO L275 TraceCheckUtils]: 51: Hoare quadruple {3596#false} {3599#(<= 4 main_~x~0)} #51#return; {3596#false} is VALID [2020-07-08 12:14:00,869 INFO L280 TraceCheckUtils]: 52: Hoare triple {3596#false} assume -2147483648 <= #t~ret4 && #t~ret4 <= 2147483647;~result~0 := #t~ret4;havoc #t~ret4; {3596#false} is VALID [2020-07-08 12:14:00,869 INFO L280 TraceCheckUtils]: 53: Hoare triple {3596#false} assume 3 != ~result~0; {3596#false} is VALID [2020-07-08 12:14:00,870 INFO L280 TraceCheckUtils]: 54: Hoare triple {3596#false} assume !false; {3596#false} is VALID [2020-07-08 12:14:00,886 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 19 proven. 11 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-07-08 12:14:00,886 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182790432] [2020-07-08 12:14:00,887 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [410345714] [2020-07-08 12:14:00,887 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 [2020-07-08 12:14:00,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:14:00,917 INFO L264 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-08 12:14:00,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:14:00,941 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-08 12:14:01,065 INFO L263 TraceCheckUtils]: 0: Hoare triple {3595#true} call ULTIMATE.init(); {3595#true} is VALID [2020-07-08 12:14:01,066 INFO L280 TraceCheckUtils]: 1: Hoare triple {3595#true} assume true; {3595#true} is VALID [2020-07-08 12:14:01,066 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {3595#true} {3595#true} #47#return; {3595#true} is VALID [2020-07-08 12:14:01,066 INFO L263 TraceCheckUtils]: 3: Hoare triple {3595#true} call #t~ret5 := main(); {3595#true} is VALID [2020-07-08 12:14:01,066 INFO L280 TraceCheckUtils]: 4: Hoare triple {3595#true} ~x~0 := 4; {3599#(<= 4 main_~x~0)} is VALID [2020-07-08 12:14:01,066 INFO L263 TraceCheckUtils]: 5: Hoare triple {3599#(<= 4 main_~x~0)} call #t~ret4 := fibo1(~x~0); {3595#true} is VALID [2020-07-08 12:14:01,067 INFO L280 TraceCheckUtils]: 6: Hoare triple {3595#true} ~n := #in~n; {3745#(<= |fibo1_#in~n| fibo1_~n)} is VALID [2020-07-08 12:14:01,067 INFO L280 TraceCheckUtils]: 7: Hoare triple {3745#(<= |fibo1_#in~n| fibo1_~n)} assume !(~n < 1); {3745#(<= |fibo1_#in~n| fibo1_~n)} is VALID [2020-07-08 12:14:01,068 INFO L280 TraceCheckUtils]: 8: Hoare triple {3745#(<= |fibo1_#in~n| fibo1_~n)} assume !(1 == ~n); {3745#(<= |fibo1_#in~n| fibo1_~n)} is VALID [2020-07-08 12:14:01,068 INFO L263 TraceCheckUtils]: 9: Hoare triple {3745#(<= |fibo1_#in~n| fibo1_~n)} call #t~ret0 := fibo2(~n - 1); {3595#true} is VALID [2020-07-08 12:14:01,068 INFO L280 TraceCheckUtils]: 10: Hoare triple {3595#true} ~n := #in~n; {3595#true} is VALID [2020-07-08 12:14:01,068 INFO L280 TraceCheckUtils]: 11: Hoare triple {3595#true} assume !(~n < 1); {3595#true} is VALID [2020-07-08 12:14:01,068 INFO L280 TraceCheckUtils]: 12: Hoare triple {3595#true} assume !(1 == ~n); {3595#true} is VALID [2020-07-08 12:14:01,068 INFO L263 TraceCheckUtils]: 13: Hoare triple {3595#true} call #t~ret2 := fibo1(~n - 1); {3595#true} is VALID [2020-07-08 12:14:01,068 INFO L280 TraceCheckUtils]: 14: Hoare triple {3595#true} ~n := #in~n; {3595#true} is VALID [2020-07-08 12:14:01,068 INFO L280 TraceCheckUtils]: 15: Hoare triple {3595#true} assume !(~n < 1); {3595#true} is VALID [2020-07-08 12:14:01,069 INFO L280 TraceCheckUtils]: 16: Hoare triple {3595#true} assume !(1 == ~n); {3595#true} is VALID [2020-07-08 12:14:01,069 INFO L263 TraceCheckUtils]: 17: Hoare triple {3595#true} call #t~ret0 := fibo2(~n - 1); {3595#true} is VALID [2020-07-08 12:14:01,069 INFO L280 TraceCheckUtils]: 18: Hoare triple {3595#true} ~n := #in~n; {3595#true} is VALID [2020-07-08 12:14:01,069 INFO L280 TraceCheckUtils]: 19: Hoare triple {3595#true} assume !(~n < 1); {3595#true} is VALID [2020-07-08 12:14:01,069 INFO L280 TraceCheckUtils]: 20: Hoare triple {3595#true} assume 1 == ~n;#res := 1; {3595#true} is VALID [2020-07-08 12:14:01,069 INFO L280 TraceCheckUtils]: 21: Hoare triple {3595#true} assume true; {3595#true} is VALID [2020-07-08 12:14:01,069 INFO L275 TraceCheckUtils]: 22: Hoare quadruple {3595#true} {3595#true} #57#return; {3595#true} is VALID [2020-07-08 12:14:01,069 INFO L280 TraceCheckUtils]: 23: Hoare triple {3595#true} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {3595#true} is VALID [2020-07-08 12:14:01,070 INFO L263 TraceCheckUtils]: 24: Hoare triple {3595#true} call #t~ret1 := fibo2(~n - 2); {3595#true} is VALID [2020-07-08 12:14:01,070 INFO L280 TraceCheckUtils]: 25: Hoare triple {3595#true} ~n := #in~n; {3595#true} is VALID [2020-07-08 12:14:01,070 INFO L280 TraceCheckUtils]: 26: Hoare triple {3595#true} assume ~n < 1;#res := 0; {3595#true} is VALID [2020-07-08 12:14:01,070 INFO L280 TraceCheckUtils]: 27: Hoare triple {3595#true} assume true; {3595#true} is VALID [2020-07-08 12:14:01,070 INFO L275 TraceCheckUtils]: 28: Hoare quadruple {3595#true} {3595#true} #59#return; {3595#true} is VALID [2020-07-08 12:14:01,071 INFO L280 TraceCheckUtils]: 29: Hoare triple {3595#true} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647;#res := #t~ret0 + #t~ret1;havoc #t~ret0;havoc #t~ret1; {3595#true} is VALID [2020-07-08 12:14:01,071 INFO L280 TraceCheckUtils]: 30: Hoare triple {3595#true} assume true; {3595#true} is VALID [2020-07-08 12:14:01,071 INFO L275 TraceCheckUtils]: 31: Hoare quadruple {3595#true} {3595#true} #53#return; {3595#true} is VALID [2020-07-08 12:14:01,071 INFO L280 TraceCheckUtils]: 32: Hoare triple {3595#true} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {3595#true} is VALID [2020-07-08 12:14:01,071 INFO L263 TraceCheckUtils]: 33: Hoare triple {3595#true} call #t~ret3 := fibo1(~n - 2); {3595#true} is VALID [2020-07-08 12:14:01,071 INFO L280 TraceCheckUtils]: 34: Hoare triple {3595#true} ~n := #in~n; {3595#true} is VALID [2020-07-08 12:14:01,072 INFO L280 TraceCheckUtils]: 35: Hoare triple {3595#true} assume !(~n < 1); {3595#true} is VALID [2020-07-08 12:14:01,072 INFO L280 TraceCheckUtils]: 36: Hoare triple {3595#true} assume 1 == ~n;#res := 1; {3595#true} is VALID [2020-07-08 12:14:01,072 INFO L280 TraceCheckUtils]: 37: Hoare triple {3595#true} assume true; {3595#true} is VALID [2020-07-08 12:14:01,072 INFO L275 TraceCheckUtils]: 38: Hoare quadruple {3595#true} {3595#true} #55#return; {3595#true} is VALID [2020-07-08 12:14:01,072 INFO L280 TraceCheckUtils]: 39: Hoare triple {3595#true} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647;#res := #t~ret2 + #t~ret3;havoc #t~ret2;havoc #t~ret3; {3595#true} is VALID [2020-07-08 12:14:01,073 INFO L280 TraceCheckUtils]: 40: Hoare triple {3595#true} assume true; {3595#true} is VALID [2020-07-08 12:14:01,075 INFO L275 TraceCheckUtils]: 41: Hoare quadruple {3595#true} {3745#(<= |fibo1_#in~n| fibo1_~n)} #57#return; {3745#(<= |fibo1_#in~n| fibo1_~n)} is VALID [2020-07-08 12:14:01,075 INFO L280 TraceCheckUtils]: 42: Hoare triple {3745#(<= |fibo1_#in~n| fibo1_~n)} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {3745#(<= |fibo1_#in~n| fibo1_~n)} is VALID [2020-07-08 12:14:01,075 INFO L263 TraceCheckUtils]: 43: Hoare triple {3745#(<= |fibo1_#in~n| fibo1_~n)} call #t~ret1 := fibo2(~n - 2); {3595#true} is VALID [2020-07-08 12:14:01,076 INFO L280 TraceCheckUtils]: 44: Hoare triple {3595#true} ~n := #in~n; {3860#(<= |fibo2_#in~n| fibo2_~n)} is VALID [2020-07-08 12:14:01,076 INFO L280 TraceCheckUtils]: 45: Hoare triple {3860#(<= |fibo2_#in~n| fibo2_~n)} assume !(~n < 1); {3860#(<= |fibo2_#in~n| fibo2_~n)} is VALID [2020-07-08 12:14:01,077 INFO L280 TraceCheckUtils]: 46: Hoare triple {3860#(<= |fibo2_#in~n| fibo2_~n)} assume 1 == ~n;#res := 1; {3723#(<= |fibo2_#in~n| 1)} is VALID [2020-07-08 12:14:01,077 INFO L280 TraceCheckUtils]: 47: Hoare triple {3723#(<= |fibo2_#in~n| 1)} assume true; {3723#(<= |fibo2_#in~n| 1)} is VALID [2020-07-08 12:14:01,078 INFO L275 TraceCheckUtils]: 48: Hoare quadruple {3723#(<= |fibo2_#in~n| 1)} {3745#(<= |fibo1_#in~n| fibo1_~n)} #59#return; {3873#(<= |fibo1_#in~n| 3)} is VALID [2020-07-08 12:14:01,079 INFO L280 TraceCheckUtils]: 49: Hoare triple {3873#(<= |fibo1_#in~n| 3)} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647;#res := #t~ret0 + #t~ret1;havoc #t~ret0;havoc #t~ret1; {3873#(<= |fibo1_#in~n| 3)} is VALID [2020-07-08 12:14:01,079 INFO L280 TraceCheckUtils]: 50: Hoare triple {3873#(<= |fibo1_#in~n| 3)} assume true; {3873#(<= |fibo1_#in~n| 3)} is VALID [2020-07-08 12:14:01,080 INFO L275 TraceCheckUtils]: 51: Hoare quadruple {3873#(<= |fibo1_#in~n| 3)} {3599#(<= 4 main_~x~0)} #51#return; {3596#false} is VALID [2020-07-08 12:14:01,080 INFO L280 TraceCheckUtils]: 52: Hoare triple {3596#false} assume -2147483648 <= #t~ret4 && #t~ret4 <= 2147483647;~result~0 := #t~ret4;havoc #t~ret4; {3596#false} is VALID [2020-07-08 12:14:01,081 INFO L280 TraceCheckUtils]: 53: Hoare triple {3596#false} assume 3 != ~result~0; {3596#false} is VALID [2020-07-08 12:14:01,081 INFO L280 TraceCheckUtils]: 54: Hoare triple {3596#false} assume !false; {3596#false} is VALID [2020-07-08 12:14:01,083 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 18 proven. 5 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2020-07-08 12:14:01,083 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-08 12:14:01,083 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 7] total 15 [2020-07-08 12:14:01,084 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505850947] [2020-07-08 12:14:01,084 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 55 [2020-07-08 12:14:01,090 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 12:14:01,090 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 15 states. [2020-07-08 12:14:01,164 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 75 edges. 75 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 12:14:01,165 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-07-08 12:14:01,165 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-08 12:14:01,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-07-08 12:14:01,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2020-07-08 12:14:01,166 INFO L87 Difference]: Start difference. First operand 142 states and 244 transitions. Second operand 15 states. [2020-07-08 12:14:02,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 12:14:02,532 INFO L93 Difference]: Finished difference Result 304 states and 583 transitions. [2020-07-08 12:14:02,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-07-08 12:14:02,533 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 55 [2020-07-08 12:14:02,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 12:14:02,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-07-08 12:14:02,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 125 transitions. [2020-07-08 12:14:02,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-07-08 12:14:02,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 125 transitions. [2020-07-08 12:14:02,541 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 16 states and 125 transitions. [2020-07-08 12:14:02,679 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 125 edges. 125 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 12:14:02,683 INFO L225 Difference]: With dead ends: 304 [2020-07-08 12:14:02,683 INFO L226 Difference]: Without dead ends: 101 [2020-07-08 12:14:02,685 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=307, Unknown=0, NotChecked=0, Total=380 [2020-07-08 12:14:02,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2020-07-08 12:14:02,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 83. [2020-07-08 12:14:02,730 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 12:14:02,730 INFO L82 GeneralOperation]: Start isEquivalent. First operand 101 states. Second operand 83 states. [2020-07-08 12:14:02,731 INFO L74 IsIncluded]: Start isIncluded. First operand 101 states. Second operand 83 states. [2020-07-08 12:14:02,731 INFO L87 Difference]: Start difference. First operand 101 states. Second operand 83 states. [2020-07-08 12:14:02,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 12:14:02,738 INFO L93 Difference]: Finished difference Result 101 states and 156 transitions. [2020-07-08 12:14:02,738 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 156 transitions. [2020-07-08 12:14:02,739 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 12:14:02,740 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 12:14:02,740 INFO L74 IsIncluded]: Start isIncluded. First operand 83 states. Second operand 101 states. [2020-07-08 12:14:02,740 INFO L87 Difference]: Start difference. First operand 83 states. Second operand 101 states. [2020-07-08 12:14:02,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 12:14:02,746 INFO L93 Difference]: Finished difference Result 101 states and 156 transitions. [2020-07-08 12:14:02,747 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 156 transitions. [2020-07-08 12:14:02,748 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 12:14:02,748 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 12:14:02,748 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 12:14:02,748 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 12:14:02,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2020-07-08 12:14:02,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 126 transitions. [2020-07-08 12:14:02,753 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 126 transitions. Word has length 55 [2020-07-08 12:14:02,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 12:14:02,753 INFO L479 AbstractCegarLoop]: Abstraction has 83 states and 126 transitions. [2020-07-08 12:14:02,753 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-07-08 12:14:02,754 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 126 transitions. [2020-07-08 12:14:02,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-07-08 12:14:02,755 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 12:14:02,755 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 12:14:02,970 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-08 12:14:02,970 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 12:14:02,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 12:14:02,971 INFO L82 PathProgramCache]: Analyzing trace with hash -908952008, now seen corresponding path program 2 times [2020-07-08 12:14:02,971 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-08 12:14:02,972 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481489200] [2020-07-08 12:14:02,972 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 12:14:02,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:14:03,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:14:03,019 INFO L280 TraceCheckUtils]: 0: Hoare triple {4604#true} assume true; {4604#true} is VALID [2020-07-08 12:14:03,020 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {4604#true} {4604#true} #47#return; {4604#true} is VALID [2020-07-08 12:14:03,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:14:03,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:14:03,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:14:03,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:14:03,175 INFO L280 TraceCheckUtils]: 0: Hoare triple {4604#true} ~n := #in~n; {4747#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 12:14:03,176 INFO L280 TraceCheckUtils]: 1: Hoare triple {4747#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {4747#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 12:14:03,177 INFO L280 TraceCheckUtils]: 2: Hoare triple {4747#(= fibo2_~n |fibo2_#in~n|)} assume 1 == ~n;#res := 1; {4785#(<= |fibo2_#in~n| 1)} is VALID [2020-07-08 12:14:03,177 INFO L280 TraceCheckUtils]: 3: Hoare triple {4785#(<= |fibo2_#in~n| 1)} assume true; {4785#(<= |fibo2_#in~n| 1)} is VALID [2020-07-08 12:14:03,178 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {4785#(<= |fibo2_#in~n| 1)} {4773#(= fibo1_~n |fibo1_#in~n|)} #57#return; {4779#(and (<= fibo1_~n 2) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 12:14:03,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:14:03,183 INFO L280 TraceCheckUtils]: 0: Hoare triple {4604#true} ~n := #in~n; {4604#true} is VALID [2020-07-08 12:14:03,183 INFO L280 TraceCheckUtils]: 1: Hoare triple {4604#true} assume ~n < 1;#res := 0; {4604#true} is VALID [2020-07-08 12:14:03,184 INFO L280 TraceCheckUtils]: 2: Hoare triple {4604#true} assume true; {4604#true} is VALID [2020-07-08 12:14:03,185 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {4604#true} {4779#(and (<= fibo1_~n 2) (= fibo1_~n |fibo1_#in~n|))} #59#return; {4784#(<= |fibo1_#in~n| 2)} is VALID [2020-07-08 12:14:03,185 INFO L280 TraceCheckUtils]: 0: Hoare triple {4604#true} ~n := #in~n; {4773#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 12:14:03,186 INFO L280 TraceCheckUtils]: 1: Hoare triple {4773#(= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {4773#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 12:14:03,186 INFO L280 TraceCheckUtils]: 2: Hoare triple {4773#(= fibo1_~n |fibo1_#in~n|)} assume !(1 == ~n); {4773#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 12:14:03,187 INFO L263 TraceCheckUtils]: 3: Hoare triple {4773#(= fibo1_~n |fibo1_#in~n|)} call #t~ret0 := fibo2(~n - 1); {4604#true} is VALID [2020-07-08 12:14:03,187 INFO L280 TraceCheckUtils]: 4: Hoare triple {4604#true} ~n := #in~n; {4747#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 12:14:03,188 INFO L280 TraceCheckUtils]: 5: Hoare triple {4747#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {4747#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 12:14:03,188 INFO L280 TraceCheckUtils]: 6: Hoare triple {4747#(= fibo2_~n |fibo2_#in~n|)} assume 1 == ~n;#res := 1; {4785#(<= |fibo2_#in~n| 1)} is VALID [2020-07-08 12:14:03,189 INFO L280 TraceCheckUtils]: 7: Hoare triple {4785#(<= |fibo2_#in~n| 1)} assume true; {4785#(<= |fibo2_#in~n| 1)} is VALID [2020-07-08 12:14:03,190 INFO L275 TraceCheckUtils]: 8: Hoare quadruple {4785#(<= |fibo2_#in~n| 1)} {4773#(= fibo1_~n |fibo1_#in~n|)} #57#return; {4779#(and (<= fibo1_~n 2) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 12:14:03,191 INFO L280 TraceCheckUtils]: 9: Hoare triple {4779#(and (<= fibo1_~n 2) (= fibo1_~n |fibo1_#in~n|))} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {4779#(and (<= fibo1_~n 2) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 12:14:03,191 INFO L263 TraceCheckUtils]: 10: Hoare triple {4779#(and (<= fibo1_~n 2) (= fibo1_~n |fibo1_#in~n|))} call #t~ret1 := fibo2(~n - 2); {4604#true} is VALID [2020-07-08 12:14:03,191 INFO L280 TraceCheckUtils]: 11: Hoare triple {4604#true} ~n := #in~n; {4604#true} is VALID [2020-07-08 12:14:03,191 INFO L280 TraceCheckUtils]: 12: Hoare triple {4604#true} assume ~n < 1;#res := 0; {4604#true} is VALID [2020-07-08 12:14:03,192 INFO L280 TraceCheckUtils]: 13: Hoare triple {4604#true} assume true; {4604#true} is VALID [2020-07-08 12:14:03,193 INFO L275 TraceCheckUtils]: 14: Hoare quadruple {4604#true} {4779#(and (<= fibo1_~n 2) (= fibo1_~n |fibo1_#in~n|))} #59#return; {4784#(<= |fibo1_#in~n| 2)} is VALID [2020-07-08 12:14:03,193 INFO L280 TraceCheckUtils]: 15: Hoare triple {4784#(<= |fibo1_#in~n| 2)} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647;#res := #t~ret0 + #t~ret1;havoc #t~ret0;havoc #t~ret1; {4784#(<= |fibo1_#in~n| 2)} is VALID [2020-07-08 12:14:03,194 INFO L280 TraceCheckUtils]: 16: Hoare triple {4784#(<= |fibo1_#in~n| 2)} assume true; {4784#(<= |fibo1_#in~n| 2)} is VALID [2020-07-08 12:14:03,195 INFO L275 TraceCheckUtils]: 17: Hoare quadruple {4784#(<= |fibo1_#in~n| 2)} {4747#(= fibo2_~n |fibo2_#in~n|)} #53#return; {4766#(and (= fibo2_~n |fibo2_#in~n|) (<= fibo2_~n 3))} is VALID [2020-07-08 12:14:03,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:14:03,200 INFO L280 TraceCheckUtils]: 0: Hoare triple {4604#true} ~n := #in~n; {4604#true} is VALID [2020-07-08 12:14:03,200 INFO L280 TraceCheckUtils]: 1: Hoare triple {4604#true} assume !(~n < 1); {4604#true} is VALID [2020-07-08 12:14:03,201 INFO L280 TraceCheckUtils]: 2: Hoare triple {4604#true} assume 1 == ~n;#res := 1; {4604#true} is VALID [2020-07-08 12:14:03,201 INFO L280 TraceCheckUtils]: 3: Hoare triple {4604#true} assume true; {4604#true} is VALID [2020-07-08 12:14:03,202 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {4604#true} {4766#(and (= fibo2_~n |fibo2_#in~n|) (<= fibo2_~n 3))} #55#return; {4772#(<= |fibo2_#in~n| 3)} is VALID [2020-07-08 12:14:03,203 INFO L280 TraceCheckUtils]: 0: Hoare triple {4604#true} ~n := #in~n; {4747#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 12:14:03,203 INFO L280 TraceCheckUtils]: 1: Hoare triple {4747#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {4747#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 12:14:03,204 INFO L280 TraceCheckUtils]: 2: Hoare triple {4747#(= fibo2_~n |fibo2_#in~n|)} assume !(1 == ~n); {4747#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 12:14:03,204 INFO L263 TraceCheckUtils]: 3: Hoare triple {4747#(= fibo2_~n |fibo2_#in~n|)} call #t~ret2 := fibo1(~n - 1); {4604#true} is VALID [2020-07-08 12:14:03,204 INFO L280 TraceCheckUtils]: 4: Hoare triple {4604#true} ~n := #in~n; {4773#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 12:14:03,205 INFO L280 TraceCheckUtils]: 5: Hoare triple {4773#(= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {4773#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 12:14:03,205 INFO L280 TraceCheckUtils]: 6: Hoare triple {4773#(= fibo1_~n |fibo1_#in~n|)} assume !(1 == ~n); {4773#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 12:14:03,206 INFO L263 TraceCheckUtils]: 7: Hoare triple {4773#(= fibo1_~n |fibo1_#in~n|)} call #t~ret0 := fibo2(~n - 1); {4604#true} is VALID [2020-07-08 12:14:03,206 INFO L280 TraceCheckUtils]: 8: Hoare triple {4604#true} ~n := #in~n; {4747#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 12:14:03,207 INFO L280 TraceCheckUtils]: 9: Hoare triple {4747#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {4747#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 12:14:03,207 INFO L280 TraceCheckUtils]: 10: Hoare triple {4747#(= fibo2_~n |fibo2_#in~n|)} assume 1 == ~n;#res := 1; {4785#(<= |fibo2_#in~n| 1)} is VALID [2020-07-08 12:14:03,208 INFO L280 TraceCheckUtils]: 11: Hoare triple {4785#(<= |fibo2_#in~n| 1)} assume true; {4785#(<= |fibo2_#in~n| 1)} is VALID [2020-07-08 12:14:03,209 INFO L275 TraceCheckUtils]: 12: Hoare quadruple {4785#(<= |fibo2_#in~n| 1)} {4773#(= fibo1_~n |fibo1_#in~n|)} #57#return; {4779#(and (<= fibo1_~n 2) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 12:14:03,210 INFO L280 TraceCheckUtils]: 13: Hoare triple {4779#(and (<= fibo1_~n 2) (= fibo1_~n |fibo1_#in~n|))} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {4779#(and (<= fibo1_~n 2) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 12:14:03,210 INFO L263 TraceCheckUtils]: 14: Hoare triple {4779#(and (<= fibo1_~n 2) (= fibo1_~n |fibo1_#in~n|))} call #t~ret1 := fibo2(~n - 2); {4604#true} is VALID [2020-07-08 12:14:03,210 INFO L280 TraceCheckUtils]: 15: Hoare triple {4604#true} ~n := #in~n; {4604#true} is VALID [2020-07-08 12:14:03,210 INFO L280 TraceCheckUtils]: 16: Hoare triple {4604#true} assume ~n < 1;#res := 0; {4604#true} is VALID [2020-07-08 12:14:03,210 INFO L280 TraceCheckUtils]: 17: Hoare triple {4604#true} assume true; {4604#true} is VALID [2020-07-08 12:14:03,211 INFO L275 TraceCheckUtils]: 18: Hoare quadruple {4604#true} {4779#(and (<= fibo1_~n 2) (= fibo1_~n |fibo1_#in~n|))} #59#return; {4784#(<= |fibo1_#in~n| 2)} is VALID [2020-07-08 12:14:03,212 INFO L280 TraceCheckUtils]: 19: Hoare triple {4784#(<= |fibo1_#in~n| 2)} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647;#res := #t~ret0 + #t~ret1;havoc #t~ret0;havoc #t~ret1; {4784#(<= |fibo1_#in~n| 2)} is VALID [2020-07-08 12:14:03,213 INFO L280 TraceCheckUtils]: 20: Hoare triple {4784#(<= |fibo1_#in~n| 2)} assume true; {4784#(<= |fibo1_#in~n| 2)} is VALID [2020-07-08 12:14:03,214 INFO L275 TraceCheckUtils]: 21: Hoare quadruple {4784#(<= |fibo1_#in~n| 2)} {4747#(= fibo2_~n |fibo2_#in~n|)} #53#return; {4766#(and (= fibo2_~n |fibo2_#in~n|) (<= fibo2_~n 3))} is VALID [2020-07-08 12:14:03,214 INFO L280 TraceCheckUtils]: 22: Hoare triple {4766#(and (= fibo2_~n |fibo2_#in~n|) (<= fibo2_~n 3))} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {4766#(and (= fibo2_~n |fibo2_#in~n|) (<= fibo2_~n 3))} is VALID [2020-07-08 12:14:03,215 INFO L263 TraceCheckUtils]: 23: Hoare triple {4766#(and (= fibo2_~n |fibo2_#in~n|) (<= fibo2_~n 3))} call #t~ret3 := fibo1(~n - 2); {4604#true} is VALID [2020-07-08 12:14:03,215 INFO L280 TraceCheckUtils]: 24: Hoare triple {4604#true} ~n := #in~n; {4604#true} is VALID [2020-07-08 12:14:03,215 INFO L280 TraceCheckUtils]: 25: Hoare triple {4604#true} assume !(~n < 1); {4604#true} is VALID [2020-07-08 12:14:03,215 INFO L280 TraceCheckUtils]: 26: Hoare triple {4604#true} assume 1 == ~n;#res := 1; {4604#true} is VALID [2020-07-08 12:14:03,215 INFO L280 TraceCheckUtils]: 27: Hoare triple {4604#true} assume true; {4604#true} is VALID [2020-07-08 12:14:03,217 INFO L275 TraceCheckUtils]: 28: Hoare quadruple {4604#true} {4766#(and (= fibo2_~n |fibo2_#in~n|) (<= fibo2_~n 3))} #55#return; {4772#(<= |fibo2_#in~n| 3)} is VALID [2020-07-08 12:14:03,217 INFO L280 TraceCheckUtils]: 29: Hoare triple {4772#(<= |fibo2_#in~n| 3)} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647;#res := #t~ret2 + #t~ret3;havoc #t~ret2;havoc #t~ret3; {4772#(<= |fibo2_#in~n| 3)} is VALID [2020-07-08 12:14:03,218 INFO L280 TraceCheckUtils]: 30: Hoare triple {4772#(<= |fibo2_#in~n| 3)} assume true; {4772#(<= |fibo2_#in~n| 3)} is VALID [2020-07-08 12:14:03,219 INFO L275 TraceCheckUtils]: 31: Hoare quadruple {4772#(<= |fibo2_#in~n| 3)} {4604#true} #57#return; {4714#(<= fibo1_~n 4)} is VALID [2020-07-08 12:14:03,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:14:03,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:14:03,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:14:03,336 INFO L280 TraceCheckUtils]: 0: Hoare triple {4604#true} ~n := #in~n; {4604#true} is VALID [2020-07-08 12:14:03,336 INFO L280 TraceCheckUtils]: 1: Hoare triple {4604#true} assume !(~n < 1); {4604#true} is VALID [2020-07-08 12:14:03,337 INFO L280 TraceCheckUtils]: 2: Hoare triple {4604#true} assume 1 == ~n;#res := 1; {4604#true} is VALID [2020-07-08 12:14:03,337 INFO L280 TraceCheckUtils]: 3: Hoare triple {4604#true} assume true; {4604#true} is VALID [2020-07-08 12:14:03,338 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {4604#true} {4812#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} #57#return; {4812#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 12:14:03,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:14:03,343 INFO L280 TraceCheckUtils]: 0: Hoare triple {4604#true} ~n := #in~n; {4604#true} is VALID [2020-07-08 12:14:03,343 INFO L280 TraceCheckUtils]: 1: Hoare triple {4604#true} assume ~n < 1;#res := 0; {4604#true} is VALID [2020-07-08 12:14:03,343 INFO L280 TraceCheckUtils]: 2: Hoare triple {4604#true} assume true; {4604#true} is VALID [2020-07-08 12:14:03,345 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {4604#true} {4812#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} #59#return; {4822#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 12:14:03,345 INFO L280 TraceCheckUtils]: 0: Hoare triple {4604#true} ~n := #in~n; {4773#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 12:14:03,346 INFO L280 TraceCheckUtils]: 1: Hoare triple {4773#(= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {4811#(and (< 0 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 12:14:03,347 INFO L280 TraceCheckUtils]: 2: Hoare triple {4811#(and (< 0 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} assume !(1 == ~n); {4812#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 12:14:03,347 INFO L263 TraceCheckUtils]: 3: Hoare triple {4812#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} call #t~ret0 := fibo2(~n - 1); {4604#true} is VALID [2020-07-08 12:14:03,347 INFO L280 TraceCheckUtils]: 4: Hoare triple {4604#true} ~n := #in~n; {4604#true} is VALID [2020-07-08 12:14:03,348 INFO L280 TraceCheckUtils]: 5: Hoare triple {4604#true} assume !(~n < 1); {4604#true} is VALID [2020-07-08 12:14:03,348 INFO L280 TraceCheckUtils]: 6: Hoare triple {4604#true} assume 1 == ~n;#res := 1; {4604#true} is VALID [2020-07-08 12:14:03,348 INFO L280 TraceCheckUtils]: 7: Hoare triple {4604#true} assume true; {4604#true} is VALID [2020-07-08 12:14:03,349 INFO L275 TraceCheckUtils]: 8: Hoare quadruple {4604#true} {4812#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} #57#return; {4812#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 12:14:03,350 INFO L280 TraceCheckUtils]: 9: Hoare triple {4812#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {4812#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 12:14:03,350 INFO L263 TraceCheckUtils]: 10: Hoare triple {4812#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} call #t~ret1 := fibo2(~n - 2); {4604#true} is VALID [2020-07-08 12:14:03,350 INFO L280 TraceCheckUtils]: 11: Hoare triple {4604#true} ~n := #in~n; {4604#true} is VALID [2020-07-08 12:14:03,351 INFO L280 TraceCheckUtils]: 12: Hoare triple {4604#true} assume ~n < 1;#res := 0; {4604#true} is VALID [2020-07-08 12:14:03,351 INFO L280 TraceCheckUtils]: 13: Hoare triple {4604#true} assume true; {4604#true} is VALID [2020-07-08 12:14:03,352 INFO L275 TraceCheckUtils]: 14: Hoare quadruple {4604#true} {4812#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} #59#return; {4822#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 12:14:03,353 INFO L280 TraceCheckUtils]: 15: Hoare triple {4822#(<= 2 |fibo1_#in~n|)} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647;#res := #t~ret0 + #t~ret1;havoc #t~ret0;havoc #t~ret1; {4822#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 12:14:03,353 INFO L280 TraceCheckUtils]: 16: Hoare triple {4822#(<= 2 |fibo1_#in~n|)} assume true; {4822#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 12:14:03,354 INFO L275 TraceCheckUtils]: 17: Hoare quadruple {4822#(<= 2 |fibo1_#in~n|)} {4747#(= fibo2_~n |fibo2_#in~n|)} #53#return; {4804#(and (= fibo2_~n |fibo2_#in~n|) (<= 3 fibo2_~n))} is VALID [2020-07-08 12:14:03,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:14:03,364 INFO L280 TraceCheckUtils]: 0: Hoare triple {4604#true} ~n := #in~n; {4604#true} is VALID [2020-07-08 12:14:03,364 INFO L280 TraceCheckUtils]: 1: Hoare triple {4604#true} assume !(~n < 1); {4604#true} is VALID [2020-07-08 12:14:03,365 INFO L280 TraceCheckUtils]: 2: Hoare triple {4604#true} assume 1 == ~n;#res := 1; {4604#true} is VALID [2020-07-08 12:14:03,365 INFO L280 TraceCheckUtils]: 3: Hoare triple {4604#true} assume true; {4604#true} is VALID [2020-07-08 12:14:03,366 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {4604#true} {4804#(and (= fibo2_~n |fibo2_#in~n|) (<= 3 fibo2_~n))} #55#return; {4810#(<= 3 |fibo2_#in~n|)} is VALID [2020-07-08 12:14:03,366 INFO L280 TraceCheckUtils]: 0: Hoare triple {4604#true} ~n := #in~n; {4747#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 12:14:03,367 INFO L280 TraceCheckUtils]: 1: Hoare triple {4747#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {4747#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 12:14:03,367 INFO L280 TraceCheckUtils]: 2: Hoare triple {4747#(= fibo2_~n |fibo2_#in~n|)} assume !(1 == ~n); {4747#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 12:14:03,367 INFO L263 TraceCheckUtils]: 3: Hoare triple {4747#(= fibo2_~n |fibo2_#in~n|)} call #t~ret2 := fibo1(~n - 1); {4604#true} is VALID [2020-07-08 12:14:03,368 INFO L280 TraceCheckUtils]: 4: Hoare triple {4604#true} ~n := #in~n; {4773#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 12:14:03,368 INFO L280 TraceCheckUtils]: 5: Hoare triple {4773#(= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {4811#(and (< 0 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 12:14:03,369 INFO L280 TraceCheckUtils]: 6: Hoare triple {4811#(and (< 0 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} assume !(1 == ~n); {4812#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 12:14:03,369 INFO L263 TraceCheckUtils]: 7: Hoare triple {4812#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} call #t~ret0 := fibo2(~n - 1); {4604#true} is VALID [2020-07-08 12:14:03,369 INFO L280 TraceCheckUtils]: 8: Hoare triple {4604#true} ~n := #in~n; {4604#true} is VALID [2020-07-08 12:14:03,370 INFO L280 TraceCheckUtils]: 9: Hoare triple {4604#true} assume !(~n < 1); {4604#true} is VALID [2020-07-08 12:14:03,370 INFO L280 TraceCheckUtils]: 10: Hoare triple {4604#true} assume 1 == ~n;#res := 1; {4604#true} is VALID [2020-07-08 12:14:03,370 INFO L280 TraceCheckUtils]: 11: Hoare triple {4604#true} assume true; {4604#true} is VALID [2020-07-08 12:14:03,371 INFO L275 TraceCheckUtils]: 12: Hoare quadruple {4604#true} {4812#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} #57#return; {4812#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 12:14:03,371 INFO L280 TraceCheckUtils]: 13: Hoare triple {4812#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {4812#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 12:14:03,371 INFO L263 TraceCheckUtils]: 14: Hoare triple {4812#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} call #t~ret1 := fibo2(~n - 2); {4604#true} is VALID [2020-07-08 12:14:03,371 INFO L280 TraceCheckUtils]: 15: Hoare triple {4604#true} ~n := #in~n; {4604#true} is VALID [2020-07-08 12:14:03,371 INFO L280 TraceCheckUtils]: 16: Hoare triple {4604#true} assume ~n < 1;#res := 0; {4604#true} is VALID [2020-07-08 12:14:03,372 INFO L280 TraceCheckUtils]: 17: Hoare triple {4604#true} assume true; {4604#true} is VALID [2020-07-08 12:14:03,372 INFO L275 TraceCheckUtils]: 18: Hoare quadruple {4604#true} {4812#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} #59#return; {4822#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 12:14:03,373 INFO L280 TraceCheckUtils]: 19: Hoare triple {4822#(<= 2 |fibo1_#in~n|)} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647;#res := #t~ret0 + #t~ret1;havoc #t~ret0;havoc #t~ret1; {4822#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 12:14:03,373 INFO L280 TraceCheckUtils]: 20: Hoare triple {4822#(<= 2 |fibo1_#in~n|)} assume true; {4822#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 12:14:03,374 INFO L275 TraceCheckUtils]: 21: Hoare quadruple {4822#(<= 2 |fibo1_#in~n|)} {4747#(= fibo2_~n |fibo2_#in~n|)} #53#return; {4804#(and (= fibo2_~n |fibo2_#in~n|) (<= 3 fibo2_~n))} is VALID [2020-07-08 12:14:03,375 INFO L280 TraceCheckUtils]: 22: Hoare triple {4804#(and (= fibo2_~n |fibo2_#in~n|) (<= 3 fibo2_~n))} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {4804#(and (= fibo2_~n |fibo2_#in~n|) (<= 3 fibo2_~n))} is VALID [2020-07-08 12:14:03,375 INFO L263 TraceCheckUtils]: 23: Hoare triple {4804#(and (= fibo2_~n |fibo2_#in~n|) (<= 3 fibo2_~n))} call #t~ret3 := fibo1(~n - 2); {4604#true} is VALID [2020-07-08 12:14:03,375 INFO L280 TraceCheckUtils]: 24: Hoare triple {4604#true} ~n := #in~n; {4604#true} is VALID [2020-07-08 12:14:03,375 INFO L280 TraceCheckUtils]: 25: Hoare triple {4604#true} assume !(~n < 1); {4604#true} is VALID [2020-07-08 12:14:03,375 INFO L280 TraceCheckUtils]: 26: Hoare triple {4604#true} assume 1 == ~n;#res := 1; {4604#true} is VALID [2020-07-08 12:14:03,376 INFO L280 TraceCheckUtils]: 27: Hoare triple {4604#true} assume true; {4604#true} is VALID [2020-07-08 12:14:03,379 INFO L275 TraceCheckUtils]: 28: Hoare quadruple {4604#true} {4804#(and (= fibo2_~n |fibo2_#in~n|) (<= 3 fibo2_~n))} #55#return; {4810#(<= 3 |fibo2_#in~n|)} is VALID [2020-07-08 12:14:03,383 INFO L280 TraceCheckUtils]: 29: Hoare triple {4810#(<= 3 |fibo2_#in~n|)} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647;#res := #t~ret2 + #t~ret3;havoc #t~ret2;havoc #t~ret3; {4810#(<= 3 |fibo2_#in~n|)} is VALID [2020-07-08 12:14:03,384 INFO L280 TraceCheckUtils]: 30: Hoare triple {4810#(<= 3 |fibo2_#in~n|)} assume true; {4810#(<= 3 |fibo2_#in~n|)} is VALID [2020-07-08 12:14:03,385 INFO L275 TraceCheckUtils]: 31: Hoare quadruple {4810#(<= 3 |fibo2_#in~n|)} {4714#(<= fibo1_~n 4)} #59#return; {4605#false} is VALID [2020-07-08 12:14:03,405 INFO L280 TraceCheckUtils]: 0: Hoare triple {4604#true} ~n := #in~n; {4604#true} is VALID [2020-07-08 12:14:03,406 INFO L280 TraceCheckUtils]: 1: Hoare triple {4604#true} assume !(~n < 1); {4604#true} is VALID [2020-07-08 12:14:03,406 INFO L280 TraceCheckUtils]: 2: Hoare triple {4604#true} assume !(1 == ~n); {4604#true} is VALID [2020-07-08 12:14:03,406 INFO L263 TraceCheckUtils]: 3: Hoare triple {4604#true} call #t~ret0 := fibo2(~n - 1); {4604#true} is VALID [2020-07-08 12:14:03,407 INFO L280 TraceCheckUtils]: 4: Hoare triple {4604#true} ~n := #in~n; {4747#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 12:14:03,408 INFO L280 TraceCheckUtils]: 5: Hoare triple {4747#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {4747#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 12:14:03,408 INFO L280 TraceCheckUtils]: 6: Hoare triple {4747#(= fibo2_~n |fibo2_#in~n|)} assume !(1 == ~n); {4747#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 12:14:03,409 INFO L263 TraceCheckUtils]: 7: Hoare triple {4747#(= fibo2_~n |fibo2_#in~n|)} call #t~ret2 := fibo1(~n - 1); {4604#true} is VALID [2020-07-08 12:14:03,409 INFO L280 TraceCheckUtils]: 8: Hoare triple {4604#true} ~n := #in~n; {4773#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 12:14:03,410 INFO L280 TraceCheckUtils]: 9: Hoare triple {4773#(= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {4773#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 12:14:03,410 INFO L280 TraceCheckUtils]: 10: Hoare triple {4773#(= fibo1_~n |fibo1_#in~n|)} assume !(1 == ~n); {4773#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 12:14:03,410 INFO L263 TraceCheckUtils]: 11: Hoare triple {4773#(= fibo1_~n |fibo1_#in~n|)} call #t~ret0 := fibo2(~n - 1); {4604#true} is VALID [2020-07-08 12:14:03,411 INFO L280 TraceCheckUtils]: 12: Hoare triple {4604#true} ~n := #in~n; {4747#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 12:14:03,411 INFO L280 TraceCheckUtils]: 13: Hoare triple {4747#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {4747#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 12:14:03,412 INFO L280 TraceCheckUtils]: 14: Hoare triple {4747#(= fibo2_~n |fibo2_#in~n|)} assume 1 == ~n;#res := 1; {4785#(<= |fibo2_#in~n| 1)} is VALID [2020-07-08 12:14:03,412 INFO L280 TraceCheckUtils]: 15: Hoare triple {4785#(<= |fibo2_#in~n| 1)} assume true; {4785#(<= |fibo2_#in~n| 1)} is VALID [2020-07-08 12:14:03,413 INFO L275 TraceCheckUtils]: 16: Hoare quadruple {4785#(<= |fibo2_#in~n| 1)} {4773#(= fibo1_~n |fibo1_#in~n|)} #57#return; {4779#(and (<= fibo1_~n 2) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 12:14:03,413 INFO L280 TraceCheckUtils]: 17: Hoare triple {4779#(and (<= fibo1_~n 2) (= fibo1_~n |fibo1_#in~n|))} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {4779#(and (<= fibo1_~n 2) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 12:14:03,414 INFO L263 TraceCheckUtils]: 18: Hoare triple {4779#(and (<= fibo1_~n 2) (= fibo1_~n |fibo1_#in~n|))} call #t~ret1 := fibo2(~n - 2); {4604#true} is VALID [2020-07-08 12:14:03,414 INFO L280 TraceCheckUtils]: 19: Hoare triple {4604#true} ~n := #in~n; {4604#true} is VALID [2020-07-08 12:14:03,414 INFO L280 TraceCheckUtils]: 20: Hoare triple {4604#true} assume ~n < 1;#res := 0; {4604#true} is VALID [2020-07-08 12:14:03,414 INFO L280 TraceCheckUtils]: 21: Hoare triple {4604#true} assume true; {4604#true} is VALID [2020-07-08 12:14:03,416 INFO L275 TraceCheckUtils]: 22: Hoare quadruple {4604#true} {4779#(and (<= fibo1_~n 2) (= fibo1_~n |fibo1_#in~n|))} #59#return; {4784#(<= |fibo1_#in~n| 2)} is VALID [2020-07-08 12:14:03,419 INFO L280 TraceCheckUtils]: 23: Hoare triple {4784#(<= |fibo1_#in~n| 2)} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647;#res := #t~ret0 + #t~ret1;havoc #t~ret0;havoc #t~ret1; {4784#(<= |fibo1_#in~n| 2)} is VALID [2020-07-08 12:14:03,421 INFO L280 TraceCheckUtils]: 24: Hoare triple {4784#(<= |fibo1_#in~n| 2)} assume true; {4784#(<= |fibo1_#in~n| 2)} is VALID [2020-07-08 12:14:03,423 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {4784#(<= |fibo1_#in~n| 2)} {4747#(= fibo2_~n |fibo2_#in~n|)} #53#return; {4766#(and (= fibo2_~n |fibo2_#in~n|) (<= fibo2_~n 3))} is VALID [2020-07-08 12:14:03,423 INFO L280 TraceCheckUtils]: 26: Hoare triple {4766#(and (= fibo2_~n |fibo2_#in~n|) (<= fibo2_~n 3))} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {4766#(and (= fibo2_~n |fibo2_#in~n|) (<= fibo2_~n 3))} is VALID [2020-07-08 12:14:03,423 INFO L263 TraceCheckUtils]: 27: Hoare triple {4766#(and (= fibo2_~n |fibo2_#in~n|) (<= fibo2_~n 3))} call #t~ret3 := fibo1(~n - 2); {4604#true} is VALID [2020-07-08 12:14:03,424 INFO L280 TraceCheckUtils]: 28: Hoare triple {4604#true} ~n := #in~n; {4604#true} is VALID [2020-07-08 12:14:03,424 INFO L280 TraceCheckUtils]: 29: Hoare triple {4604#true} assume !(~n < 1); {4604#true} is VALID [2020-07-08 12:14:03,424 INFO L280 TraceCheckUtils]: 30: Hoare triple {4604#true} assume 1 == ~n;#res := 1; {4604#true} is VALID [2020-07-08 12:14:03,424 INFO L280 TraceCheckUtils]: 31: Hoare triple {4604#true} assume true; {4604#true} is VALID [2020-07-08 12:14:03,425 INFO L275 TraceCheckUtils]: 32: Hoare quadruple {4604#true} {4766#(and (= fibo2_~n |fibo2_#in~n|) (<= fibo2_~n 3))} #55#return; {4772#(<= |fibo2_#in~n| 3)} is VALID [2020-07-08 12:14:03,426 INFO L280 TraceCheckUtils]: 33: Hoare triple {4772#(<= |fibo2_#in~n| 3)} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647;#res := #t~ret2 + #t~ret3;havoc #t~ret2;havoc #t~ret3; {4772#(<= |fibo2_#in~n| 3)} is VALID [2020-07-08 12:14:03,426 INFO L280 TraceCheckUtils]: 34: Hoare triple {4772#(<= |fibo2_#in~n| 3)} assume true; {4772#(<= |fibo2_#in~n| 3)} is VALID [2020-07-08 12:14:03,427 INFO L275 TraceCheckUtils]: 35: Hoare quadruple {4772#(<= |fibo2_#in~n| 3)} {4604#true} #57#return; {4714#(<= fibo1_~n 4)} is VALID [2020-07-08 12:14:03,428 INFO L280 TraceCheckUtils]: 36: Hoare triple {4714#(<= fibo1_~n 4)} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {4714#(<= fibo1_~n 4)} is VALID [2020-07-08 12:14:03,428 INFO L263 TraceCheckUtils]: 37: Hoare triple {4714#(<= fibo1_~n 4)} call #t~ret1 := fibo2(~n - 2); {4604#true} is VALID [2020-07-08 12:14:03,428 INFO L280 TraceCheckUtils]: 38: Hoare triple {4604#true} ~n := #in~n; {4747#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 12:14:03,429 INFO L280 TraceCheckUtils]: 39: Hoare triple {4747#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {4747#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 12:14:03,429 INFO L280 TraceCheckUtils]: 40: Hoare triple {4747#(= fibo2_~n |fibo2_#in~n|)} assume !(1 == ~n); {4747#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 12:14:03,430 INFO L263 TraceCheckUtils]: 41: Hoare triple {4747#(= fibo2_~n |fibo2_#in~n|)} call #t~ret2 := fibo1(~n - 1); {4604#true} is VALID [2020-07-08 12:14:03,430 INFO L280 TraceCheckUtils]: 42: Hoare triple {4604#true} ~n := #in~n; {4773#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 12:14:03,431 INFO L280 TraceCheckUtils]: 43: Hoare triple {4773#(= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {4811#(and (< 0 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 12:14:03,431 INFO L280 TraceCheckUtils]: 44: Hoare triple {4811#(and (< 0 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} assume !(1 == ~n); {4812#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 12:14:03,432 INFO L263 TraceCheckUtils]: 45: Hoare triple {4812#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} call #t~ret0 := fibo2(~n - 1); {4604#true} is VALID [2020-07-08 12:14:03,432 INFO L280 TraceCheckUtils]: 46: Hoare triple {4604#true} ~n := #in~n; {4604#true} is VALID [2020-07-08 12:14:03,432 INFO L280 TraceCheckUtils]: 47: Hoare triple {4604#true} assume !(~n < 1); {4604#true} is VALID [2020-07-08 12:14:03,432 INFO L280 TraceCheckUtils]: 48: Hoare triple {4604#true} assume 1 == ~n;#res := 1; {4604#true} is VALID [2020-07-08 12:14:03,432 INFO L280 TraceCheckUtils]: 49: Hoare triple {4604#true} assume true; {4604#true} is VALID [2020-07-08 12:14:03,433 INFO L275 TraceCheckUtils]: 50: Hoare quadruple {4604#true} {4812#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} #57#return; {4812#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 12:14:03,434 INFO L280 TraceCheckUtils]: 51: Hoare triple {4812#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {4812#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 12:14:03,434 INFO L263 TraceCheckUtils]: 52: Hoare triple {4812#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} call #t~ret1 := fibo2(~n - 2); {4604#true} is VALID [2020-07-08 12:14:03,434 INFO L280 TraceCheckUtils]: 53: Hoare triple {4604#true} ~n := #in~n; {4604#true} is VALID [2020-07-08 12:14:03,434 INFO L280 TraceCheckUtils]: 54: Hoare triple {4604#true} assume ~n < 1;#res := 0; {4604#true} is VALID [2020-07-08 12:14:03,435 INFO L280 TraceCheckUtils]: 55: Hoare triple {4604#true} assume true; {4604#true} is VALID [2020-07-08 12:14:03,436 INFO L275 TraceCheckUtils]: 56: Hoare quadruple {4604#true} {4812#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} #59#return; {4822#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 12:14:03,436 INFO L280 TraceCheckUtils]: 57: Hoare triple {4822#(<= 2 |fibo1_#in~n|)} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647;#res := #t~ret0 + #t~ret1;havoc #t~ret0;havoc #t~ret1; {4822#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 12:14:03,437 INFO L280 TraceCheckUtils]: 58: Hoare triple {4822#(<= 2 |fibo1_#in~n|)} assume true; {4822#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 12:14:03,438 INFO L275 TraceCheckUtils]: 59: Hoare quadruple {4822#(<= 2 |fibo1_#in~n|)} {4747#(= fibo2_~n |fibo2_#in~n|)} #53#return; {4804#(and (= fibo2_~n |fibo2_#in~n|) (<= 3 fibo2_~n))} is VALID [2020-07-08 12:14:03,438 INFO L280 TraceCheckUtils]: 60: Hoare triple {4804#(and (= fibo2_~n |fibo2_#in~n|) (<= 3 fibo2_~n))} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {4804#(and (= fibo2_~n |fibo2_#in~n|) (<= 3 fibo2_~n))} is VALID [2020-07-08 12:14:03,439 INFO L263 TraceCheckUtils]: 61: Hoare triple {4804#(and (= fibo2_~n |fibo2_#in~n|) (<= 3 fibo2_~n))} call #t~ret3 := fibo1(~n - 2); {4604#true} is VALID [2020-07-08 12:14:03,439 INFO L280 TraceCheckUtils]: 62: Hoare triple {4604#true} ~n := #in~n; {4604#true} is VALID [2020-07-08 12:14:03,439 INFO L280 TraceCheckUtils]: 63: Hoare triple {4604#true} assume !(~n < 1); {4604#true} is VALID [2020-07-08 12:14:03,439 INFO L280 TraceCheckUtils]: 64: Hoare triple {4604#true} assume 1 == ~n;#res := 1; {4604#true} is VALID [2020-07-08 12:14:03,439 INFO L280 TraceCheckUtils]: 65: Hoare triple {4604#true} assume true; {4604#true} is VALID [2020-07-08 12:14:03,440 INFO L275 TraceCheckUtils]: 66: Hoare quadruple {4604#true} {4804#(and (= fibo2_~n |fibo2_#in~n|) (<= 3 fibo2_~n))} #55#return; {4810#(<= 3 |fibo2_#in~n|)} is VALID [2020-07-08 12:14:03,441 INFO L280 TraceCheckUtils]: 67: Hoare triple {4810#(<= 3 |fibo2_#in~n|)} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647;#res := #t~ret2 + #t~ret3;havoc #t~ret2;havoc #t~ret3; {4810#(<= 3 |fibo2_#in~n|)} is VALID [2020-07-08 12:14:03,441 INFO L280 TraceCheckUtils]: 68: Hoare triple {4810#(<= 3 |fibo2_#in~n|)} assume true; {4810#(<= 3 |fibo2_#in~n|)} is VALID [2020-07-08 12:14:03,442 INFO L275 TraceCheckUtils]: 69: Hoare quadruple {4810#(<= 3 |fibo2_#in~n|)} {4714#(<= fibo1_~n 4)} #59#return; {4605#false} is VALID [2020-07-08 12:14:03,442 INFO L280 TraceCheckUtils]: 70: Hoare triple {4605#false} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647;#res := #t~ret0 + #t~ret1;havoc #t~ret0;havoc #t~ret1; {4605#false} is VALID [2020-07-08 12:14:03,443 INFO L280 TraceCheckUtils]: 71: Hoare triple {4605#false} assume true; {4605#false} is VALID [2020-07-08 12:14:03,443 INFO L275 TraceCheckUtils]: 72: Hoare quadruple {4605#false} {4608#(<= main_~x~0 4)} #51#return; {4605#false} is VALID [2020-07-08 12:14:03,447 INFO L263 TraceCheckUtils]: 0: Hoare triple {4604#true} call ULTIMATE.init(); {4604#true} is VALID [2020-07-08 12:14:03,448 INFO L280 TraceCheckUtils]: 1: Hoare triple {4604#true} assume true; {4604#true} is VALID [2020-07-08 12:14:03,448 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {4604#true} {4604#true} #47#return; {4604#true} is VALID [2020-07-08 12:14:03,448 INFO L263 TraceCheckUtils]: 3: Hoare triple {4604#true} call #t~ret5 := main(); {4604#true} is VALID [2020-07-08 12:14:03,449 INFO L280 TraceCheckUtils]: 4: Hoare triple {4604#true} ~x~0 := 4; {4608#(<= main_~x~0 4)} is VALID [2020-07-08 12:14:03,449 INFO L263 TraceCheckUtils]: 5: Hoare triple {4608#(<= main_~x~0 4)} call #t~ret4 := fibo1(~x~0); {4604#true} is VALID [2020-07-08 12:14:03,449 INFO L280 TraceCheckUtils]: 6: Hoare triple {4604#true} ~n := #in~n; {4604#true} is VALID [2020-07-08 12:14:03,449 INFO L280 TraceCheckUtils]: 7: Hoare triple {4604#true} assume !(~n < 1); {4604#true} is VALID [2020-07-08 12:14:03,449 INFO L280 TraceCheckUtils]: 8: Hoare triple {4604#true} assume !(1 == ~n); {4604#true} is VALID [2020-07-08 12:14:03,450 INFO L263 TraceCheckUtils]: 9: Hoare triple {4604#true} call #t~ret0 := fibo2(~n - 1); {4604#true} is VALID [2020-07-08 12:14:03,450 INFO L280 TraceCheckUtils]: 10: Hoare triple {4604#true} ~n := #in~n; {4747#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 12:14:03,451 INFO L280 TraceCheckUtils]: 11: Hoare triple {4747#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {4747#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 12:14:03,451 INFO L280 TraceCheckUtils]: 12: Hoare triple {4747#(= fibo2_~n |fibo2_#in~n|)} assume !(1 == ~n); {4747#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 12:14:03,451 INFO L263 TraceCheckUtils]: 13: Hoare triple {4747#(= fibo2_~n |fibo2_#in~n|)} call #t~ret2 := fibo1(~n - 1); {4604#true} is VALID [2020-07-08 12:14:03,452 INFO L280 TraceCheckUtils]: 14: Hoare triple {4604#true} ~n := #in~n; {4773#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 12:14:03,452 INFO L280 TraceCheckUtils]: 15: Hoare triple {4773#(= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {4773#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 12:14:03,453 INFO L280 TraceCheckUtils]: 16: Hoare triple {4773#(= fibo1_~n |fibo1_#in~n|)} assume !(1 == ~n); {4773#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 12:14:03,453 INFO L263 TraceCheckUtils]: 17: Hoare triple {4773#(= fibo1_~n |fibo1_#in~n|)} call #t~ret0 := fibo2(~n - 1); {4604#true} is VALID [2020-07-08 12:14:03,454 INFO L280 TraceCheckUtils]: 18: Hoare triple {4604#true} ~n := #in~n; {4747#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 12:14:03,454 INFO L280 TraceCheckUtils]: 19: Hoare triple {4747#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {4747#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 12:14:03,455 INFO L280 TraceCheckUtils]: 20: Hoare triple {4747#(= fibo2_~n |fibo2_#in~n|)} assume 1 == ~n;#res := 1; {4785#(<= |fibo2_#in~n| 1)} is VALID [2020-07-08 12:14:03,455 INFO L280 TraceCheckUtils]: 21: Hoare triple {4785#(<= |fibo2_#in~n| 1)} assume true; {4785#(<= |fibo2_#in~n| 1)} is VALID [2020-07-08 12:14:03,457 INFO L275 TraceCheckUtils]: 22: Hoare quadruple {4785#(<= |fibo2_#in~n| 1)} {4773#(= fibo1_~n |fibo1_#in~n|)} #57#return; {4779#(and (<= fibo1_~n 2) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 12:14:03,457 INFO L280 TraceCheckUtils]: 23: Hoare triple {4779#(and (<= fibo1_~n 2) (= fibo1_~n |fibo1_#in~n|))} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {4779#(and (<= fibo1_~n 2) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 12:14:03,458 INFO L263 TraceCheckUtils]: 24: Hoare triple {4779#(and (<= fibo1_~n 2) (= fibo1_~n |fibo1_#in~n|))} call #t~ret1 := fibo2(~n - 2); {4604#true} is VALID [2020-07-08 12:14:03,458 INFO L280 TraceCheckUtils]: 25: Hoare triple {4604#true} ~n := #in~n; {4604#true} is VALID [2020-07-08 12:14:03,458 INFO L280 TraceCheckUtils]: 26: Hoare triple {4604#true} assume ~n < 1;#res := 0; {4604#true} is VALID [2020-07-08 12:14:03,458 INFO L280 TraceCheckUtils]: 27: Hoare triple {4604#true} assume true; {4604#true} is VALID [2020-07-08 12:14:03,459 INFO L275 TraceCheckUtils]: 28: Hoare quadruple {4604#true} {4779#(and (<= fibo1_~n 2) (= fibo1_~n |fibo1_#in~n|))} #59#return; {4784#(<= |fibo1_#in~n| 2)} is VALID [2020-07-08 12:14:03,460 INFO L280 TraceCheckUtils]: 29: Hoare triple {4784#(<= |fibo1_#in~n| 2)} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647;#res := #t~ret0 + #t~ret1;havoc #t~ret0;havoc #t~ret1; {4784#(<= |fibo1_#in~n| 2)} is VALID [2020-07-08 12:14:03,460 INFO L280 TraceCheckUtils]: 30: Hoare triple {4784#(<= |fibo1_#in~n| 2)} assume true; {4784#(<= |fibo1_#in~n| 2)} is VALID [2020-07-08 12:14:03,461 INFO L275 TraceCheckUtils]: 31: Hoare quadruple {4784#(<= |fibo1_#in~n| 2)} {4747#(= fibo2_~n |fibo2_#in~n|)} #53#return; {4766#(and (= fibo2_~n |fibo2_#in~n|) (<= fibo2_~n 3))} is VALID [2020-07-08 12:14:03,462 INFO L280 TraceCheckUtils]: 32: Hoare triple {4766#(and (= fibo2_~n |fibo2_#in~n|) (<= fibo2_~n 3))} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {4766#(and (= fibo2_~n |fibo2_#in~n|) (<= fibo2_~n 3))} is VALID [2020-07-08 12:14:03,462 INFO L263 TraceCheckUtils]: 33: Hoare triple {4766#(and (= fibo2_~n |fibo2_#in~n|) (<= fibo2_~n 3))} call #t~ret3 := fibo1(~n - 2); {4604#true} is VALID [2020-07-08 12:14:03,462 INFO L280 TraceCheckUtils]: 34: Hoare triple {4604#true} ~n := #in~n; {4604#true} is VALID [2020-07-08 12:14:03,463 INFO L280 TraceCheckUtils]: 35: Hoare triple {4604#true} assume !(~n < 1); {4604#true} is VALID [2020-07-08 12:14:03,463 INFO L280 TraceCheckUtils]: 36: Hoare triple {4604#true} assume 1 == ~n;#res := 1; {4604#true} is VALID [2020-07-08 12:14:03,463 INFO L280 TraceCheckUtils]: 37: Hoare triple {4604#true} assume true; {4604#true} is VALID [2020-07-08 12:14:03,464 INFO L275 TraceCheckUtils]: 38: Hoare quadruple {4604#true} {4766#(and (= fibo2_~n |fibo2_#in~n|) (<= fibo2_~n 3))} #55#return; {4772#(<= |fibo2_#in~n| 3)} is VALID [2020-07-08 12:14:03,464 INFO L280 TraceCheckUtils]: 39: Hoare triple {4772#(<= |fibo2_#in~n| 3)} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647;#res := #t~ret2 + #t~ret3;havoc #t~ret2;havoc #t~ret3; {4772#(<= |fibo2_#in~n| 3)} is VALID [2020-07-08 12:14:03,465 INFO L280 TraceCheckUtils]: 40: Hoare triple {4772#(<= |fibo2_#in~n| 3)} assume true; {4772#(<= |fibo2_#in~n| 3)} is VALID [2020-07-08 12:14:03,466 INFO L275 TraceCheckUtils]: 41: Hoare quadruple {4772#(<= |fibo2_#in~n| 3)} {4604#true} #57#return; {4714#(<= fibo1_~n 4)} is VALID [2020-07-08 12:14:03,466 INFO L280 TraceCheckUtils]: 42: Hoare triple {4714#(<= fibo1_~n 4)} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {4714#(<= fibo1_~n 4)} is VALID [2020-07-08 12:14:03,467 INFO L263 TraceCheckUtils]: 43: Hoare triple {4714#(<= fibo1_~n 4)} call #t~ret1 := fibo2(~n - 2); {4604#true} is VALID [2020-07-08 12:14:03,467 INFO L280 TraceCheckUtils]: 44: Hoare triple {4604#true} ~n := #in~n; {4747#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 12:14:03,468 INFO L280 TraceCheckUtils]: 45: Hoare triple {4747#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {4747#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 12:14:03,468 INFO L280 TraceCheckUtils]: 46: Hoare triple {4747#(= fibo2_~n |fibo2_#in~n|)} assume !(1 == ~n); {4747#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 12:14:03,468 INFO L263 TraceCheckUtils]: 47: Hoare triple {4747#(= fibo2_~n |fibo2_#in~n|)} call #t~ret2 := fibo1(~n - 1); {4604#true} is VALID [2020-07-08 12:14:03,469 INFO L280 TraceCheckUtils]: 48: Hoare triple {4604#true} ~n := #in~n; {4773#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 12:14:03,470 INFO L280 TraceCheckUtils]: 49: Hoare triple {4773#(= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {4811#(and (< 0 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 12:14:03,470 INFO L280 TraceCheckUtils]: 50: Hoare triple {4811#(and (< 0 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} assume !(1 == ~n); {4812#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 12:14:03,471 INFO L263 TraceCheckUtils]: 51: Hoare triple {4812#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} call #t~ret0 := fibo2(~n - 1); {4604#true} is VALID [2020-07-08 12:14:03,471 INFO L280 TraceCheckUtils]: 52: Hoare triple {4604#true} ~n := #in~n; {4604#true} is VALID [2020-07-08 12:14:03,471 INFO L280 TraceCheckUtils]: 53: Hoare triple {4604#true} assume !(~n < 1); {4604#true} is VALID [2020-07-08 12:14:03,471 INFO L280 TraceCheckUtils]: 54: Hoare triple {4604#true} assume 1 == ~n;#res := 1; {4604#true} is VALID [2020-07-08 12:14:03,471 INFO L280 TraceCheckUtils]: 55: Hoare triple {4604#true} assume true; {4604#true} is VALID [2020-07-08 12:14:03,472 INFO L275 TraceCheckUtils]: 56: Hoare quadruple {4604#true} {4812#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} #57#return; {4812#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 12:14:03,473 INFO L280 TraceCheckUtils]: 57: Hoare triple {4812#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {4812#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 12:14:03,473 INFO L263 TraceCheckUtils]: 58: Hoare triple {4812#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} call #t~ret1 := fibo2(~n - 2); {4604#true} is VALID [2020-07-08 12:14:03,473 INFO L280 TraceCheckUtils]: 59: Hoare triple {4604#true} ~n := #in~n; {4604#true} is VALID [2020-07-08 12:14:03,473 INFO L280 TraceCheckUtils]: 60: Hoare triple {4604#true} assume ~n < 1;#res := 0; {4604#true} is VALID [2020-07-08 12:14:03,473 INFO L280 TraceCheckUtils]: 61: Hoare triple {4604#true} assume true; {4604#true} is VALID [2020-07-08 12:14:03,475 INFO L275 TraceCheckUtils]: 62: Hoare quadruple {4604#true} {4812#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} #59#return; {4822#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 12:14:03,475 INFO L280 TraceCheckUtils]: 63: Hoare triple {4822#(<= 2 |fibo1_#in~n|)} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647;#res := #t~ret0 + #t~ret1;havoc #t~ret0;havoc #t~ret1; {4822#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 12:14:03,476 INFO L280 TraceCheckUtils]: 64: Hoare triple {4822#(<= 2 |fibo1_#in~n|)} assume true; {4822#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 12:14:03,477 INFO L275 TraceCheckUtils]: 65: Hoare quadruple {4822#(<= 2 |fibo1_#in~n|)} {4747#(= fibo2_~n |fibo2_#in~n|)} #53#return; {4804#(and (= fibo2_~n |fibo2_#in~n|) (<= 3 fibo2_~n))} is VALID [2020-07-08 12:14:03,477 INFO L280 TraceCheckUtils]: 66: Hoare triple {4804#(and (= fibo2_~n |fibo2_#in~n|) (<= 3 fibo2_~n))} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {4804#(and (= fibo2_~n |fibo2_#in~n|) (<= 3 fibo2_~n))} is VALID [2020-07-08 12:14:03,478 INFO L263 TraceCheckUtils]: 67: Hoare triple {4804#(and (= fibo2_~n |fibo2_#in~n|) (<= 3 fibo2_~n))} call #t~ret3 := fibo1(~n - 2); {4604#true} is VALID [2020-07-08 12:14:03,478 INFO L280 TraceCheckUtils]: 68: Hoare triple {4604#true} ~n := #in~n; {4604#true} is VALID [2020-07-08 12:14:03,478 INFO L280 TraceCheckUtils]: 69: Hoare triple {4604#true} assume !(~n < 1); {4604#true} is VALID [2020-07-08 12:14:03,478 INFO L280 TraceCheckUtils]: 70: Hoare triple {4604#true} assume 1 == ~n;#res := 1; {4604#true} is VALID [2020-07-08 12:14:03,478 INFO L280 TraceCheckUtils]: 71: Hoare triple {4604#true} assume true; {4604#true} is VALID [2020-07-08 12:14:03,479 INFO L275 TraceCheckUtils]: 72: Hoare quadruple {4604#true} {4804#(and (= fibo2_~n |fibo2_#in~n|) (<= 3 fibo2_~n))} #55#return; {4810#(<= 3 |fibo2_#in~n|)} is VALID [2020-07-08 12:14:03,480 INFO L280 TraceCheckUtils]: 73: Hoare triple {4810#(<= 3 |fibo2_#in~n|)} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647;#res := #t~ret2 + #t~ret3;havoc #t~ret2;havoc #t~ret3; {4810#(<= 3 |fibo2_#in~n|)} is VALID [2020-07-08 12:14:03,480 INFO L280 TraceCheckUtils]: 74: Hoare triple {4810#(<= 3 |fibo2_#in~n|)} assume true; {4810#(<= 3 |fibo2_#in~n|)} is VALID [2020-07-08 12:14:03,481 INFO L275 TraceCheckUtils]: 75: Hoare quadruple {4810#(<= 3 |fibo2_#in~n|)} {4714#(<= fibo1_~n 4)} #59#return; {4605#false} is VALID [2020-07-08 12:14:03,482 INFO L280 TraceCheckUtils]: 76: Hoare triple {4605#false} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647;#res := #t~ret0 + #t~ret1;havoc #t~ret0;havoc #t~ret1; {4605#false} is VALID [2020-07-08 12:14:03,482 INFO L280 TraceCheckUtils]: 77: Hoare triple {4605#false} assume true; {4605#false} is VALID [2020-07-08 12:14:03,482 INFO L275 TraceCheckUtils]: 78: Hoare quadruple {4605#false} {4608#(<= main_~x~0 4)} #51#return; {4605#false} is VALID [2020-07-08 12:14:03,482 INFO L280 TraceCheckUtils]: 79: Hoare triple {4605#false} assume -2147483648 <= #t~ret4 && #t~ret4 <= 2147483647;~result~0 := #t~ret4;havoc #t~ret4; {4605#false} is VALID [2020-07-08 12:14:03,482 INFO L280 TraceCheckUtils]: 80: Hoare triple {4605#false} assume 3 != ~result~0; {4605#false} is VALID [2020-07-08 12:14:03,482 INFO L280 TraceCheckUtils]: 81: Hoare triple {4605#false} assume !false; {4605#false} is VALID [2020-07-08 12:14:03,488 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 31 proven. 51 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2020-07-08 12:14:03,489 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481489200] [2020-07-08 12:14:03,489 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1270382632] [2020-07-08 12:14:03,489 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 [2020-07-08 12:14:03,541 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-07-08 12:14:03,541 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-08 12:14:03,542 INFO L264 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-08 12:14:03,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:14:03,570 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-08 12:14:03,766 INFO L263 TraceCheckUtils]: 0: Hoare triple {4604#true} call ULTIMATE.init(); {4604#true} is VALID [2020-07-08 12:14:03,766 INFO L280 TraceCheckUtils]: 1: Hoare triple {4604#true} assume true; {4604#true} is VALID [2020-07-08 12:14:03,766 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {4604#true} {4604#true} #47#return; {4604#true} is VALID [2020-07-08 12:14:03,767 INFO L263 TraceCheckUtils]: 3: Hoare triple {4604#true} call #t~ret5 := main(); {4604#true} is VALID [2020-07-08 12:14:03,767 INFO L280 TraceCheckUtils]: 4: Hoare triple {4604#true} ~x~0 := 4; {4608#(<= main_~x~0 4)} is VALID [2020-07-08 12:14:03,768 INFO L263 TraceCheckUtils]: 5: Hoare triple {4608#(<= main_~x~0 4)} call #t~ret4 := fibo1(~x~0); {4604#true} is VALID [2020-07-08 12:14:03,768 INFO L280 TraceCheckUtils]: 6: Hoare triple {4604#true} ~n := #in~n; {4844#(<= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 12:14:03,768 INFO L280 TraceCheckUtils]: 7: Hoare triple {4844#(<= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {4844#(<= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 12:14:03,769 INFO L280 TraceCheckUtils]: 8: Hoare triple {4844#(<= fibo1_~n |fibo1_#in~n|)} assume !(1 == ~n); {4844#(<= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 12:14:03,769 INFO L263 TraceCheckUtils]: 9: Hoare triple {4844#(<= fibo1_~n |fibo1_#in~n|)} call #t~ret0 := fibo2(~n - 1); {4604#true} is VALID [2020-07-08 12:14:03,769 INFO L280 TraceCheckUtils]: 10: Hoare triple {4604#true} ~n := #in~n; {4604#true} is VALID [2020-07-08 12:14:03,769 INFO L280 TraceCheckUtils]: 11: Hoare triple {4604#true} assume !(~n < 1); {4604#true} is VALID [2020-07-08 12:14:03,769 INFO L280 TraceCheckUtils]: 12: Hoare triple {4604#true} assume !(1 == ~n); {4604#true} is VALID [2020-07-08 12:14:03,769 INFO L263 TraceCheckUtils]: 13: Hoare triple {4604#true} call #t~ret2 := fibo1(~n - 1); {4604#true} is VALID [2020-07-08 12:14:03,770 INFO L280 TraceCheckUtils]: 14: Hoare triple {4604#true} ~n := #in~n; {4604#true} is VALID [2020-07-08 12:14:03,770 INFO L280 TraceCheckUtils]: 15: Hoare triple {4604#true} assume !(~n < 1); {4604#true} is VALID [2020-07-08 12:14:03,770 INFO L280 TraceCheckUtils]: 16: Hoare triple {4604#true} assume !(1 == ~n); {4604#true} is VALID [2020-07-08 12:14:03,770 INFO L263 TraceCheckUtils]: 17: Hoare triple {4604#true} call #t~ret0 := fibo2(~n - 1); {4604#true} is VALID [2020-07-08 12:14:03,770 INFO L280 TraceCheckUtils]: 18: Hoare triple {4604#true} ~n := #in~n; {4604#true} is VALID [2020-07-08 12:14:03,771 INFO L280 TraceCheckUtils]: 19: Hoare triple {4604#true} assume !(~n < 1); {4604#true} is VALID [2020-07-08 12:14:03,771 INFO L280 TraceCheckUtils]: 20: Hoare triple {4604#true} assume 1 == ~n;#res := 1; {4604#true} is VALID [2020-07-08 12:14:03,771 INFO L280 TraceCheckUtils]: 21: Hoare triple {4604#true} assume true; {4604#true} is VALID [2020-07-08 12:14:03,771 INFO L275 TraceCheckUtils]: 22: Hoare quadruple {4604#true} {4604#true} #57#return; {4604#true} is VALID [2020-07-08 12:14:03,771 INFO L280 TraceCheckUtils]: 23: Hoare triple {4604#true} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {4604#true} is VALID [2020-07-08 12:14:03,771 INFO L263 TraceCheckUtils]: 24: Hoare triple {4604#true} call #t~ret1 := fibo2(~n - 2); {4604#true} is VALID [2020-07-08 12:14:03,772 INFO L280 TraceCheckUtils]: 25: Hoare triple {4604#true} ~n := #in~n; {4604#true} is VALID [2020-07-08 12:14:03,772 INFO L280 TraceCheckUtils]: 26: Hoare triple {4604#true} assume ~n < 1;#res := 0; {4604#true} is VALID [2020-07-08 12:14:03,772 INFO L280 TraceCheckUtils]: 27: Hoare triple {4604#true} assume true; {4604#true} is VALID [2020-07-08 12:14:03,772 INFO L275 TraceCheckUtils]: 28: Hoare quadruple {4604#true} {4604#true} #59#return; {4604#true} is VALID [2020-07-08 12:14:03,772 INFO L280 TraceCheckUtils]: 29: Hoare triple {4604#true} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647;#res := #t~ret0 + #t~ret1;havoc #t~ret0;havoc #t~ret1; {4604#true} is VALID [2020-07-08 12:14:03,773 INFO L280 TraceCheckUtils]: 30: Hoare triple {4604#true} assume true; {4604#true} is VALID [2020-07-08 12:14:03,773 INFO L275 TraceCheckUtils]: 31: Hoare quadruple {4604#true} {4604#true} #53#return; {4604#true} is VALID [2020-07-08 12:14:03,773 INFO L280 TraceCheckUtils]: 32: Hoare triple {4604#true} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {4604#true} is VALID [2020-07-08 12:14:03,773 INFO L263 TraceCheckUtils]: 33: Hoare triple {4604#true} call #t~ret3 := fibo1(~n - 2); {4604#true} is VALID [2020-07-08 12:14:03,773 INFO L280 TraceCheckUtils]: 34: Hoare triple {4604#true} ~n := #in~n; {4604#true} is VALID [2020-07-08 12:14:03,773 INFO L280 TraceCheckUtils]: 35: Hoare triple {4604#true} assume !(~n < 1); {4604#true} is VALID [2020-07-08 12:14:03,774 INFO L280 TraceCheckUtils]: 36: Hoare triple {4604#true} assume 1 == ~n;#res := 1; {4604#true} is VALID [2020-07-08 12:14:03,774 INFO L280 TraceCheckUtils]: 37: Hoare triple {4604#true} assume true; {4604#true} is VALID [2020-07-08 12:14:03,774 INFO L275 TraceCheckUtils]: 38: Hoare quadruple {4604#true} {4604#true} #55#return; {4604#true} is VALID [2020-07-08 12:14:03,774 INFO L280 TraceCheckUtils]: 39: Hoare triple {4604#true} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647;#res := #t~ret2 + #t~ret3;havoc #t~ret2;havoc #t~ret3; {4604#true} is VALID [2020-07-08 12:14:03,774 INFO L280 TraceCheckUtils]: 40: Hoare triple {4604#true} assume true; {4604#true} is VALID [2020-07-08 12:14:03,775 INFO L275 TraceCheckUtils]: 41: Hoare quadruple {4604#true} {4844#(<= fibo1_~n |fibo1_#in~n|)} #57#return; {4844#(<= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 12:14:03,775 INFO L280 TraceCheckUtils]: 42: Hoare triple {4844#(<= fibo1_~n |fibo1_#in~n|)} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {4844#(<= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 12:14:03,775 INFO L263 TraceCheckUtils]: 43: Hoare triple {4844#(<= fibo1_~n |fibo1_#in~n|)} call #t~ret1 := fibo2(~n - 2); {4604#true} is VALID [2020-07-08 12:14:03,776 INFO L280 TraceCheckUtils]: 44: Hoare triple {4604#true} ~n := #in~n; {4959#(<= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 12:14:03,776 INFO L280 TraceCheckUtils]: 45: Hoare triple {4959#(<= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {4959#(<= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 12:14:03,777 INFO L280 TraceCheckUtils]: 46: Hoare triple {4959#(<= fibo2_~n |fibo2_#in~n|)} assume !(1 == ~n); {4959#(<= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 12:14:03,777 INFO L263 TraceCheckUtils]: 47: Hoare triple {4959#(<= fibo2_~n |fibo2_#in~n|)} call #t~ret2 := fibo1(~n - 1); {4604#true} is VALID [2020-07-08 12:14:03,779 INFO L280 TraceCheckUtils]: 48: Hoare triple {4604#true} ~n := #in~n; {4844#(<= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 12:14:03,783 INFO L280 TraceCheckUtils]: 49: Hoare triple {4844#(<= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {4844#(<= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 12:14:03,783 INFO L280 TraceCheckUtils]: 50: Hoare triple {4844#(<= fibo1_~n |fibo1_#in~n|)} assume !(1 == ~n); {4844#(<= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 12:14:03,783 INFO L263 TraceCheckUtils]: 51: Hoare triple {4844#(<= fibo1_~n |fibo1_#in~n|)} call #t~ret0 := fibo2(~n - 1); {4604#true} is VALID [2020-07-08 12:14:03,784 INFO L280 TraceCheckUtils]: 52: Hoare triple {4604#true} ~n := #in~n; {4959#(<= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 12:14:03,784 INFO L280 TraceCheckUtils]: 53: Hoare triple {4959#(<= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {4987#(<= 1 |fibo2_#in~n|)} is VALID [2020-07-08 12:14:03,785 INFO L280 TraceCheckUtils]: 54: Hoare triple {4987#(<= 1 |fibo2_#in~n|)} assume 1 == ~n;#res := 1; {4987#(<= 1 |fibo2_#in~n|)} is VALID [2020-07-08 12:14:03,785 INFO L280 TraceCheckUtils]: 55: Hoare triple {4987#(<= 1 |fibo2_#in~n|)} assume true; {4987#(<= 1 |fibo2_#in~n|)} is VALID [2020-07-08 12:14:03,786 INFO L275 TraceCheckUtils]: 56: Hoare quadruple {4987#(<= 1 |fibo2_#in~n|)} {4844#(<= fibo1_~n |fibo1_#in~n|)} #57#return; {4822#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 12:14:03,787 INFO L280 TraceCheckUtils]: 57: Hoare triple {4822#(<= 2 |fibo1_#in~n|)} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {4822#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 12:14:03,787 INFO L263 TraceCheckUtils]: 58: Hoare triple {4822#(<= 2 |fibo1_#in~n|)} call #t~ret1 := fibo2(~n - 2); {4604#true} is VALID [2020-07-08 12:14:03,787 INFO L280 TraceCheckUtils]: 59: Hoare triple {4604#true} ~n := #in~n; {4604#true} is VALID [2020-07-08 12:14:03,787 INFO L280 TraceCheckUtils]: 60: Hoare triple {4604#true} assume ~n < 1;#res := 0; {4604#true} is VALID [2020-07-08 12:14:03,787 INFO L280 TraceCheckUtils]: 61: Hoare triple {4604#true} assume true; {4604#true} is VALID [2020-07-08 12:14:03,788 INFO L275 TraceCheckUtils]: 62: Hoare quadruple {4604#true} {4822#(<= 2 |fibo1_#in~n|)} #59#return; {4822#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 12:14:03,788 INFO L280 TraceCheckUtils]: 63: Hoare triple {4822#(<= 2 |fibo1_#in~n|)} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647;#res := #t~ret0 + #t~ret1;havoc #t~ret0;havoc #t~ret1; {4822#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 12:14:03,789 INFO L280 TraceCheckUtils]: 64: Hoare triple {4822#(<= 2 |fibo1_#in~n|)} assume true; {4822#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 12:14:03,789 INFO L275 TraceCheckUtils]: 65: Hoare quadruple {4822#(<= 2 |fibo1_#in~n|)} {4959#(<= fibo2_~n |fibo2_#in~n|)} #53#return; {4810#(<= 3 |fibo2_#in~n|)} is VALID [2020-07-08 12:14:03,790 INFO L280 TraceCheckUtils]: 66: Hoare triple {4810#(<= 3 |fibo2_#in~n|)} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {4810#(<= 3 |fibo2_#in~n|)} is VALID [2020-07-08 12:14:03,790 INFO L263 TraceCheckUtils]: 67: Hoare triple {4810#(<= 3 |fibo2_#in~n|)} call #t~ret3 := fibo1(~n - 2); {4604#true} is VALID [2020-07-08 12:14:03,790 INFO L280 TraceCheckUtils]: 68: Hoare triple {4604#true} ~n := #in~n; {4604#true} is VALID [2020-07-08 12:14:03,790 INFO L280 TraceCheckUtils]: 69: Hoare triple {4604#true} assume !(~n < 1); {4604#true} is VALID [2020-07-08 12:14:03,790 INFO L280 TraceCheckUtils]: 70: Hoare triple {4604#true} assume 1 == ~n;#res := 1; {4604#true} is VALID [2020-07-08 12:14:03,790 INFO L280 TraceCheckUtils]: 71: Hoare triple {4604#true} assume true; {4604#true} is VALID [2020-07-08 12:14:03,791 INFO L275 TraceCheckUtils]: 72: Hoare quadruple {4604#true} {4810#(<= 3 |fibo2_#in~n|)} #55#return; {4810#(<= 3 |fibo2_#in~n|)} is VALID [2020-07-08 12:14:03,791 INFO L280 TraceCheckUtils]: 73: Hoare triple {4810#(<= 3 |fibo2_#in~n|)} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647;#res := #t~ret2 + #t~ret3;havoc #t~ret2;havoc #t~ret3; {4810#(<= 3 |fibo2_#in~n|)} is VALID [2020-07-08 12:14:03,792 INFO L280 TraceCheckUtils]: 74: Hoare triple {4810#(<= 3 |fibo2_#in~n|)} assume true; {4810#(<= 3 |fibo2_#in~n|)} is VALID [2020-07-08 12:14:03,793 INFO L275 TraceCheckUtils]: 75: Hoare quadruple {4810#(<= 3 |fibo2_#in~n|)} {4844#(<= fibo1_~n |fibo1_#in~n|)} #59#return; {5054#(<= 5 |fibo1_#in~n|)} is VALID [2020-07-08 12:14:03,793 INFO L280 TraceCheckUtils]: 76: Hoare triple {5054#(<= 5 |fibo1_#in~n|)} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647;#res := #t~ret0 + #t~ret1;havoc #t~ret0;havoc #t~ret1; {5054#(<= 5 |fibo1_#in~n|)} is VALID [2020-07-08 12:14:03,793 INFO L280 TraceCheckUtils]: 77: Hoare triple {5054#(<= 5 |fibo1_#in~n|)} assume true; {5054#(<= 5 |fibo1_#in~n|)} is VALID [2020-07-08 12:14:03,794 INFO L275 TraceCheckUtils]: 78: Hoare quadruple {5054#(<= 5 |fibo1_#in~n|)} {4608#(<= main_~x~0 4)} #51#return; {4605#false} is VALID [2020-07-08 12:14:03,794 INFO L280 TraceCheckUtils]: 79: Hoare triple {4605#false} assume -2147483648 <= #t~ret4 && #t~ret4 <= 2147483647;~result~0 := #t~ret4;havoc #t~ret4; {4605#false} is VALID [2020-07-08 12:14:03,794 INFO L280 TraceCheckUtils]: 80: Hoare triple {4605#false} assume 3 != ~result~0; {4605#false} is VALID [2020-07-08 12:14:03,794 INFO L280 TraceCheckUtils]: 81: Hoare triple {4605#false} assume !false; {4605#false} is VALID [2020-07-08 12:14:03,799 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 54 proven. 18 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-07-08 12:14:03,799 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-08 12:14:03,799 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 9] total 20 [2020-07-08 12:14:03,800 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814105098] [2020-07-08 12:14:03,800 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 82 [2020-07-08 12:14:03,805 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 12:14:03,805 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 20 states. [2020-07-08 12:14:03,924 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 102 edges. 102 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 12:14:03,924 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-07-08 12:14:03,925 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-08 12:14:03,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-07-08 12:14:03,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=321, Unknown=0, NotChecked=0, Total=380 [2020-07-08 12:14:03,926 INFO L87 Difference]: Start difference. First operand 83 states and 126 transitions. Second operand 20 states. [2020-07-08 12:14:05,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 12:14:05,687 INFO L93 Difference]: Finished difference Result 182 states and 307 transitions. [2020-07-08 12:14:05,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-07-08 12:14:05,687 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 82 [2020-07-08 12:14:05,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 12:14:05,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-07-08 12:14:05,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 144 transitions. [2020-07-08 12:14:05,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-07-08 12:14:05,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 144 transitions. [2020-07-08 12:14:05,696 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 24 states and 144 transitions. [2020-07-08 12:14:05,907 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 144 edges. 144 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 12:14:05,912 INFO L225 Difference]: With dead ends: 182 [2020-07-08 12:14:05,913 INFO L226 Difference]: Without dead ends: 92 [2020-07-08 12:14:05,914 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=144, Invalid=726, Unknown=0, NotChecked=0, Total=870 [2020-07-08 12:14:05,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2020-07-08 12:14:05,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 83. [2020-07-08 12:14:05,972 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 12:14:05,973 INFO L82 GeneralOperation]: Start isEquivalent. First operand 92 states. Second operand 83 states. [2020-07-08 12:14:05,973 INFO L74 IsIncluded]: Start isIncluded. First operand 92 states. Second operand 83 states. [2020-07-08 12:14:05,973 INFO L87 Difference]: Start difference. First operand 92 states. Second operand 83 states. [2020-07-08 12:14:05,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 12:14:05,978 INFO L93 Difference]: Finished difference Result 92 states and 122 transitions. [2020-07-08 12:14:05,978 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 122 transitions. [2020-07-08 12:14:05,978 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 12:14:05,979 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 12:14:05,979 INFO L74 IsIncluded]: Start isIncluded. First operand 83 states. Second operand 92 states. [2020-07-08 12:14:05,979 INFO L87 Difference]: Start difference. First operand 83 states. Second operand 92 states. [2020-07-08 12:14:05,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 12:14:05,983 INFO L93 Difference]: Finished difference Result 92 states and 122 transitions. [2020-07-08 12:14:05,983 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 122 transitions. [2020-07-08 12:14:05,983 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 12:14:05,984 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 12:14:05,984 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 12:14:05,984 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 12:14:05,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2020-07-08 12:14:05,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 109 transitions. [2020-07-08 12:14:05,987 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 109 transitions. Word has length 82 [2020-07-08 12:14:05,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 12:14:05,988 INFO L479 AbstractCegarLoop]: Abstraction has 83 states and 109 transitions. [2020-07-08 12:14:05,988 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-07-08 12:14:05,988 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 109 transitions. [2020-07-08 12:14:05,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-07-08 12:14:05,989 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 12:14:05,989 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] [2020-07-08 12:14:06,204 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-08 12:14:06,204 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 12:14:06,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 12:14:06,205 INFO L82 PathProgramCache]: Analyzing trace with hash -1156896337, now seen corresponding path program 1 times [2020-07-08 12:14:06,206 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-08 12:14:06,206 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884333861] [2020-07-08 12:14:06,206 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 12:14:06,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:14:06,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:14:06,263 INFO L280 TraceCheckUtils]: 0: Hoare triple {5619#true} assume true; {5619#true} is VALID [2020-07-08 12:14:06,264 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {5619#true} {5619#true} #47#return; {5619#true} is VALID [2020-07-08 12:14:06,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:14:06,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:14:06,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:14:06,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:14:06,521 INFO L280 TraceCheckUtils]: 0: Hoare triple {5619#true} ~n := #in~n; {5619#true} is VALID [2020-07-08 12:14:06,521 INFO L280 TraceCheckUtils]: 1: Hoare triple {5619#true} assume !(~n < 1); {5619#true} is VALID [2020-07-08 12:14:06,522 INFO L280 TraceCheckUtils]: 2: Hoare triple {5619#true} assume 1 == ~n;#res := 1; {5775#(and (<= 1 |fibo2_#res|) (<= |fibo2_#res| 1))} is VALID [2020-07-08 12:14:06,523 INFO L280 TraceCheckUtils]: 3: Hoare triple {5775#(and (<= 1 |fibo2_#res|) (<= |fibo2_#res| 1))} assume true; {5775#(and (<= 1 |fibo2_#res|) (<= |fibo2_#res| 1))} is VALID [2020-07-08 12:14:06,524 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {5775#(and (<= 1 |fibo2_#res|) (<= |fibo2_#res| 1))} {5619#true} #57#return; {5768#(and (<= 1 |fibo1_#t~ret0|) (<= |fibo1_#t~ret0| 1))} is VALID [2020-07-08 12:14:06,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:14:06,569 INFO L280 TraceCheckUtils]: 0: Hoare triple {5619#true} ~n := #in~n; {5619#true} is VALID [2020-07-08 12:14:06,570 INFO L280 TraceCheckUtils]: 1: Hoare triple {5619#true} assume ~n < 1;#res := 0; {5776#(and (<= |fibo2_#res| 0) (<= 0 |fibo2_#res|))} is VALID [2020-07-08 12:14:06,571 INFO L280 TraceCheckUtils]: 2: Hoare triple {5776#(and (<= |fibo2_#res| 0) (<= 0 |fibo2_#res|))} assume true; {5776#(and (<= |fibo2_#res| 0) (<= 0 |fibo2_#res|))} is VALID [2020-07-08 12:14:06,572 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {5776#(and (<= |fibo2_#res| 0) (<= 0 |fibo2_#res|))} {5768#(and (<= 1 |fibo1_#t~ret0|) (<= |fibo1_#t~ret0| 1))} #59#return; {5773#(and (<= 1 (+ |fibo1_#t~ret1| |fibo1_#t~ret0|)) (<= (+ |fibo1_#t~ret1| |fibo1_#t~ret0|) 1))} is VALID [2020-07-08 12:14:06,572 INFO L280 TraceCheckUtils]: 0: Hoare triple {5619#true} ~n := #in~n; {5619#true} is VALID [2020-07-08 12:14:06,573 INFO L280 TraceCheckUtils]: 1: Hoare triple {5619#true} assume !(~n < 1); {5619#true} is VALID [2020-07-08 12:14:06,573 INFO L280 TraceCheckUtils]: 2: Hoare triple {5619#true} assume !(1 == ~n); {5619#true} is VALID [2020-07-08 12:14:06,573 INFO L263 TraceCheckUtils]: 3: Hoare triple {5619#true} call #t~ret0 := fibo2(~n - 1); {5619#true} is VALID [2020-07-08 12:14:06,573 INFO L280 TraceCheckUtils]: 4: Hoare triple {5619#true} ~n := #in~n; {5619#true} is VALID [2020-07-08 12:14:06,574 INFO L280 TraceCheckUtils]: 5: Hoare triple {5619#true} assume !(~n < 1); {5619#true} is VALID [2020-07-08 12:14:06,574 INFO L280 TraceCheckUtils]: 6: Hoare triple {5619#true} assume 1 == ~n;#res := 1; {5775#(and (<= 1 |fibo2_#res|) (<= |fibo2_#res| 1))} is VALID [2020-07-08 12:14:06,575 INFO L280 TraceCheckUtils]: 7: Hoare triple {5775#(and (<= 1 |fibo2_#res|) (<= |fibo2_#res| 1))} assume true; {5775#(and (<= 1 |fibo2_#res|) (<= |fibo2_#res| 1))} is VALID [2020-07-08 12:14:06,576 INFO L275 TraceCheckUtils]: 8: Hoare quadruple {5775#(and (<= 1 |fibo2_#res|) (<= |fibo2_#res| 1))} {5619#true} #57#return; {5768#(and (<= 1 |fibo1_#t~ret0|) (<= |fibo1_#t~ret0| 1))} is VALID [2020-07-08 12:14:06,577 INFO L280 TraceCheckUtils]: 9: Hoare triple {5768#(and (<= 1 |fibo1_#t~ret0|) (<= |fibo1_#t~ret0| 1))} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {5768#(and (<= 1 |fibo1_#t~ret0|) (<= |fibo1_#t~ret0| 1))} is VALID [2020-07-08 12:14:06,577 INFO L263 TraceCheckUtils]: 10: Hoare triple {5768#(and (<= 1 |fibo1_#t~ret0|) (<= |fibo1_#t~ret0| 1))} call #t~ret1 := fibo2(~n - 2); {5619#true} is VALID [2020-07-08 12:14:06,577 INFO L280 TraceCheckUtils]: 11: Hoare triple {5619#true} ~n := #in~n; {5619#true} is VALID [2020-07-08 12:14:06,578 INFO L280 TraceCheckUtils]: 12: Hoare triple {5619#true} assume ~n < 1;#res := 0; {5776#(and (<= |fibo2_#res| 0) (<= 0 |fibo2_#res|))} is VALID [2020-07-08 12:14:06,579 INFO L280 TraceCheckUtils]: 13: Hoare triple {5776#(and (<= |fibo2_#res| 0) (<= 0 |fibo2_#res|))} assume true; {5776#(and (<= |fibo2_#res| 0) (<= 0 |fibo2_#res|))} is VALID [2020-07-08 12:14:06,580 INFO L275 TraceCheckUtils]: 14: Hoare quadruple {5776#(and (<= |fibo2_#res| 0) (<= 0 |fibo2_#res|))} {5768#(and (<= 1 |fibo1_#t~ret0|) (<= |fibo1_#t~ret0| 1))} #59#return; {5773#(and (<= 1 (+ |fibo1_#t~ret1| |fibo1_#t~ret0|)) (<= (+ |fibo1_#t~ret1| |fibo1_#t~ret0|) 1))} is VALID [2020-07-08 12:14:06,581 INFO L280 TraceCheckUtils]: 15: Hoare triple {5773#(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~ret0;havoc #t~ret1; {5774#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} is VALID [2020-07-08 12:14:06,582 INFO L280 TraceCheckUtils]: 16: Hoare triple {5774#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} assume true; {5774#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} is VALID [2020-07-08 12:14:06,583 INFO L275 TraceCheckUtils]: 17: Hoare quadruple {5774#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} {5619#true} #53#return; {5755#(and (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|))} is VALID [2020-07-08 12:14:06,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:14:06,600 INFO L280 TraceCheckUtils]: 0: Hoare triple {5619#true} ~n := #in~n; {5619#true} is VALID [2020-07-08 12:14:06,600 INFO L280 TraceCheckUtils]: 1: Hoare triple {5619#true} assume !(~n < 1); {5619#true} is VALID [2020-07-08 12:14:06,601 INFO L280 TraceCheckUtils]: 2: Hoare triple {5619#true} assume 1 == ~n;#res := 1; {5774#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} is VALID [2020-07-08 12:14:06,602 INFO L280 TraceCheckUtils]: 3: Hoare triple {5774#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} assume true; {5774#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} is VALID [2020-07-08 12:14:06,603 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {5774#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} {5755#(and (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|))} #55#return; {5761#(and (<= 2 (+ |fibo2_#t~ret3| |fibo2_#t~ret2|)) (<= (+ |fibo2_#t~ret3| |fibo2_#t~ret2|) 2))} is VALID [2020-07-08 12:14:06,604 INFO L280 TraceCheckUtils]: 0: Hoare triple {5619#true} ~n := #in~n; {5619#true} is VALID [2020-07-08 12:14:06,604 INFO L280 TraceCheckUtils]: 1: Hoare triple {5619#true} assume !(~n < 1); {5619#true} is VALID [2020-07-08 12:14:06,604 INFO L280 TraceCheckUtils]: 2: Hoare triple {5619#true} assume !(1 == ~n); {5619#true} is VALID [2020-07-08 12:14:06,604 INFO L263 TraceCheckUtils]: 3: Hoare triple {5619#true} call #t~ret2 := fibo1(~n - 1); {5619#true} is VALID [2020-07-08 12:14:06,604 INFO L280 TraceCheckUtils]: 4: Hoare triple {5619#true} ~n := #in~n; {5619#true} is VALID [2020-07-08 12:14:06,605 INFO L280 TraceCheckUtils]: 5: Hoare triple {5619#true} assume !(~n < 1); {5619#true} is VALID [2020-07-08 12:14:06,605 INFO L280 TraceCheckUtils]: 6: Hoare triple {5619#true} assume !(1 == ~n); {5619#true} is VALID [2020-07-08 12:14:06,605 INFO L263 TraceCheckUtils]: 7: Hoare triple {5619#true} call #t~ret0 := fibo2(~n - 1); {5619#true} is VALID [2020-07-08 12:14:06,605 INFO L280 TraceCheckUtils]: 8: Hoare triple {5619#true} ~n := #in~n; {5619#true} is VALID [2020-07-08 12:14:06,605 INFO L280 TraceCheckUtils]: 9: Hoare triple {5619#true} assume !(~n < 1); {5619#true} is VALID [2020-07-08 12:14:06,606 INFO L280 TraceCheckUtils]: 10: Hoare triple {5619#true} assume 1 == ~n;#res := 1; {5775#(and (<= 1 |fibo2_#res|) (<= |fibo2_#res| 1))} is VALID [2020-07-08 12:14:06,607 INFO L280 TraceCheckUtils]: 11: Hoare triple {5775#(and (<= 1 |fibo2_#res|) (<= |fibo2_#res| 1))} assume true; {5775#(and (<= 1 |fibo2_#res|) (<= |fibo2_#res| 1))} is VALID [2020-07-08 12:14:06,608 INFO L275 TraceCheckUtils]: 12: Hoare quadruple {5775#(and (<= 1 |fibo2_#res|) (<= |fibo2_#res| 1))} {5619#true} #57#return; {5768#(and (<= 1 |fibo1_#t~ret0|) (<= |fibo1_#t~ret0| 1))} is VALID [2020-07-08 12:14:06,609 INFO L280 TraceCheckUtils]: 13: Hoare triple {5768#(and (<= 1 |fibo1_#t~ret0|) (<= |fibo1_#t~ret0| 1))} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {5768#(and (<= 1 |fibo1_#t~ret0|) (<= |fibo1_#t~ret0| 1))} is VALID [2020-07-08 12:14:06,609 INFO L263 TraceCheckUtils]: 14: Hoare triple {5768#(and (<= 1 |fibo1_#t~ret0|) (<= |fibo1_#t~ret0| 1))} call #t~ret1 := fibo2(~n - 2); {5619#true} is VALID [2020-07-08 12:14:06,609 INFO L280 TraceCheckUtils]: 15: Hoare triple {5619#true} ~n := #in~n; {5619#true} is VALID [2020-07-08 12:14:06,610 INFO L280 TraceCheckUtils]: 16: Hoare triple {5619#true} assume ~n < 1;#res := 0; {5776#(and (<= |fibo2_#res| 0) (<= 0 |fibo2_#res|))} is VALID [2020-07-08 12:14:06,611 INFO L280 TraceCheckUtils]: 17: Hoare triple {5776#(and (<= |fibo2_#res| 0) (<= 0 |fibo2_#res|))} assume true; {5776#(and (<= |fibo2_#res| 0) (<= 0 |fibo2_#res|))} is VALID [2020-07-08 12:14:06,613 INFO L275 TraceCheckUtils]: 18: Hoare quadruple {5776#(and (<= |fibo2_#res| 0) (<= 0 |fibo2_#res|))} {5768#(and (<= 1 |fibo1_#t~ret0|) (<= |fibo1_#t~ret0| 1))} #59#return; {5773#(and (<= 1 (+ |fibo1_#t~ret1| |fibo1_#t~ret0|)) (<= (+ |fibo1_#t~ret1| |fibo1_#t~ret0|) 1))} is VALID [2020-07-08 12:14:06,614 INFO L280 TraceCheckUtils]: 19: Hoare triple {5773#(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~ret0;havoc #t~ret1; {5774#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} is VALID [2020-07-08 12:14:06,615 INFO L280 TraceCheckUtils]: 20: Hoare triple {5774#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} assume true; {5774#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} is VALID [2020-07-08 12:14:06,616 INFO L275 TraceCheckUtils]: 21: Hoare quadruple {5774#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} {5619#true} #53#return; {5755#(and (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|))} is VALID [2020-07-08 12:14:06,617 INFO L280 TraceCheckUtils]: 22: Hoare triple {5755#(and (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|))} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {5755#(and (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|))} is VALID [2020-07-08 12:14:06,618 INFO L263 TraceCheckUtils]: 23: Hoare triple {5755#(and (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|))} call #t~ret3 := fibo1(~n - 2); {5619#true} is VALID [2020-07-08 12:14:06,618 INFO L280 TraceCheckUtils]: 24: Hoare triple {5619#true} ~n := #in~n; {5619#true} is VALID [2020-07-08 12:14:06,618 INFO L280 TraceCheckUtils]: 25: Hoare triple {5619#true} assume !(~n < 1); {5619#true} is VALID [2020-07-08 12:14:06,619 INFO L280 TraceCheckUtils]: 26: Hoare triple {5619#true} assume 1 == ~n;#res := 1; {5774#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} is VALID [2020-07-08 12:14:06,620 INFO L280 TraceCheckUtils]: 27: Hoare triple {5774#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} assume true; {5774#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} is VALID [2020-07-08 12:14:06,622 INFO L275 TraceCheckUtils]: 28: Hoare quadruple {5774#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} {5755#(and (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|))} #55#return; {5761#(and (<= 2 (+ |fibo2_#t~ret3| |fibo2_#t~ret2|)) (<= (+ |fibo2_#t~ret3| |fibo2_#t~ret2|) 2))} is VALID [2020-07-08 12:14:06,624 INFO L280 TraceCheckUtils]: 29: Hoare triple {5761#(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; {5762#(and (<= |fibo2_#res| 2) (<= 2 |fibo2_#res|))} is VALID [2020-07-08 12:14:06,625 INFO L280 TraceCheckUtils]: 30: Hoare triple {5762#(and (<= |fibo2_#res| 2) (<= 2 |fibo2_#res|))} assume true; {5762#(and (<= |fibo2_#res| 2) (<= 2 |fibo2_#res|))} is VALID [2020-07-08 12:14:06,626 INFO L275 TraceCheckUtils]: 31: Hoare quadruple {5762#(and (<= |fibo2_#res| 2) (<= 2 |fibo2_#res|))} {5619#true} #57#return; {5716#(and (<= |fibo1_#t~ret0| 2) (<= 2 |fibo1_#t~ret0|))} is VALID [2020-07-08 12:14:06,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:14:06,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:14:06,693 INFO L280 TraceCheckUtils]: 0: Hoare triple {5619#true} ~n := #in~n; {5619#true} is VALID [2020-07-08 12:14:06,693 INFO L280 TraceCheckUtils]: 1: Hoare triple {5619#true} assume !(~n < 1); {5619#true} is VALID [2020-07-08 12:14:06,694 INFO L280 TraceCheckUtils]: 2: Hoare triple {5619#true} assume 1 == ~n;#res := 1; {5774#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} is VALID [2020-07-08 12:14:06,694 INFO L280 TraceCheckUtils]: 3: Hoare triple {5774#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} assume true; {5774#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} is VALID [2020-07-08 12:14:06,695 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {5774#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} {5619#true} #53#return; {5755#(and (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|))} is VALID [2020-07-08 12:14:06,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:14:06,747 INFO L280 TraceCheckUtils]: 0: Hoare triple {5619#true} ~n := #in~n; {5619#true} is VALID [2020-07-08 12:14:06,748 INFO L280 TraceCheckUtils]: 1: Hoare triple {5619#true} assume ~n < 1;#res := 0; {5787#(and (<= |fibo1_#res| 0) (<= 0 |fibo1_#res|))} is VALID [2020-07-08 12:14:06,748 INFO L280 TraceCheckUtils]: 2: Hoare triple {5787#(and (<= |fibo1_#res| 0) (<= 0 |fibo1_#res|))} assume true; {5787#(and (<= |fibo1_#res| 0) (<= 0 |fibo1_#res|))} is VALID [2020-07-08 12:14:06,750 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {5787#(and (<= |fibo1_#res| 0) (<= 0 |fibo1_#res|))} {5755#(and (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|))} #55#return; {5786#(and (<= 1 (+ |fibo2_#t~ret3| |fibo2_#t~ret2|)) (<= (+ |fibo2_#t~ret3| |fibo2_#t~ret2|) 1))} is VALID [2020-07-08 12:14:06,750 INFO L280 TraceCheckUtils]: 0: Hoare triple {5619#true} ~n := #in~n; {5619#true} is VALID [2020-07-08 12:14:06,750 INFO L280 TraceCheckUtils]: 1: Hoare triple {5619#true} assume !(~n < 1); {5619#true} is VALID [2020-07-08 12:14:06,750 INFO L280 TraceCheckUtils]: 2: Hoare triple {5619#true} assume !(1 == ~n); {5619#true} is VALID [2020-07-08 12:14:06,751 INFO L263 TraceCheckUtils]: 3: Hoare triple {5619#true} call #t~ret2 := fibo1(~n - 1); {5619#true} is VALID [2020-07-08 12:14:06,751 INFO L280 TraceCheckUtils]: 4: Hoare triple {5619#true} ~n := #in~n; {5619#true} is VALID [2020-07-08 12:14:06,751 INFO L280 TraceCheckUtils]: 5: Hoare triple {5619#true} assume !(~n < 1); {5619#true} is VALID [2020-07-08 12:14:06,752 INFO L280 TraceCheckUtils]: 6: Hoare triple {5619#true} assume 1 == ~n;#res := 1; {5774#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} is VALID [2020-07-08 12:14:06,752 INFO L280 TraceCheckUtils]: 7: Hoare triple {5774#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} assume true; {5774#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} is VALID [2020-07-08 12:14:06,753 INFO L275 TraceCheckUtils]: 8: Hoare quadruple {5774#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} {5619#true} #53#return; {5755#(and (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|))} is VALID [2020-07-08 12:14:06,754 INFO L280 TraceCheckUtils]: 9: Hoare triple {5755#(and (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|))} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {5755#(and (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|))} is VALID [2020-07-08 12:14:06,754 INFO L263 TraceCheckUtils]: 10: Hoare triple {5755#(and (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|))} call #t~ret3 := fibo1(~n - 2); {5619#true} is VALID [2020-07-08 12:14:06,754 INFO L280 TraceCheckUtils]: 11: Hoare triple {5619#true} ~n := #in~n; {5619#true} is VALID [2020-07-08 12:14:06,755 INFO L280 TraceCheckUtils]: 12: Hoare triple {5619#true} assume ~n < 1;#res := 0; {5787#(and (<= |fibo1_#res| 0) (<= 0 |fibo1_#res|))} is VALID [2020-07-08 12:14:06,756 INFO L280 TraceCheckUtils]: 13: Hoare triple {5787#(and (<= |fibo1_#res| 0) (<= 0 |fibo1_#res|))} assume true; {5787#(and (<= |fibo1_#res| 0) (<= 0 |fibo1_#res|))} is VALID [2020-07-08 12:14:06,757 INFO L275 TraceCheckUtils]: 14: Hoare quadruple {5787#(and (<= |fibo1_#res| 0) (<= 0 |fibo1_#res|))} {5755#(and (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|))} #55#return; {5786#(and (<= 1 (+ |fibo2_#t~ret3| |fibo2_#t~ret2|)) (<= (+ |fibo2_#t~ret3| |fibo2_#t~ret2|) 1))} is VALID [2020-07-08 12:14:06,758 INFO L280 TraceCheckUtils]: 15: Hoare triple {5786#(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; {5775#(and (<= 1 |fibo2_#res|) (<= |fibo2_#res| 1))} is VALID [2020-07-08 12:14:06,759 INFO L280 TraceCheckUtils]: 16: Hoare triple {5775#(and (<= 1 |fibo2_#res|) (<= |fibo2_#res| 1))} assume true; {5775#(and (<= 1 |fibo2_#res|) (<= |fibo2_#res| 1))} is VALID [2020-07-08 12:14:06,760 INFO L275 TraceCheckUtils]: 17: Hoare quadruple {5775#(and (<= 1 |fibo2_#res|) (<= |fibo2_#res| 1))} {5716#(and (<= |fibo1_#t~ret0| 2) (<= 2 |fibo1_#t~ret0|))} #59#return; {5735#(and (<= (+ |fibo1_#t~ret1| |fibo1_#t~ret0|) 3) (<= 3 (+ |fibo1_#t~ret1| |fibo1_#t~ret0|)))} is VALID [2020-07-08 12:14:06,761 INFO L280 TraceCheckUtils]: 0: Hoare triple {5619#true} ~n := #in~n; {5619#true} is VALID [2020-07-08 12:14:06,761 INFO L280 TraceCheckUtils]: 1: Hoare triple {5619#true} assume !(~n < 1); {5619#true} is VALID [2020-07-08 12:14:06,761 INFO L280 TraceCheckUtils]: 2: Hoare triple {5619#true} assume !(1 == ~n); {5619#true} is VALID [2020-07-08 12:14:06,761 INFO L263 TraceCheckUtils]: 3: Hoare triple {5619#true} call #t~ret0 := fibo2(~n - 1); {5619#true} is VALID [2020-07-08 12:14:06,761 INFO L280 TraceCheckUtils]: 4: Hoare triple {5619#true} ~n := #in~n; {5619#true} is VALID [2020-07-08 12:14:06,762 INFO L280 TraceCheckUtils]: 5: Hoare triple {5619#true} assume !(~n < 1); {5619#true} is VALID [2020-07-08 12:14:06,762 INFO L280 TraceCheckUtils]: 6: Hoare triple {5619#true} assume !(1 == ~n); {5619#true} is VALID [2020-07-08 12:14:06,762 INFO L263 TraceCheckUtils]: 7: Hoare triple {5619#true} call #t~ret2 := fibo1(~n - 1); {5619#true} is VALID [2020-07-08 12:14:06,762 INFO L280 TraceCheckUtils]: 8: Hoare triple {5619#true} ~n := #in~n; {5619#true} is VALID [2020-07-08 12:14:06,762 INFO L280 TraceCheckUtils]: 9: Hoare triple {5619#true} assume !(~n < 1); {5619#true} is VALID [2020-07-08 12:14:06,763 INFO L280 TraceCheckUtils]: 10: Hoare triple {5619#true} assume !(1 == ~n); {5619#true} is VALID [2020-07-08 12:14:06,763 INFO L263 TraceCheckUtils]: 11: Hoare triple {5619#true} call #t~ret0 := fibo2(~n - 1); {5619#true} is VALID [2020-07-08 12:14:06,763 INFO L280 TraceCheckUtils]: 12: Hoare triple {5619#true} ~n := #in~n; {5619#true} is VALID [2020-07-08 12:14:06,763 INFO L280 TraceCheckUtils]: 13: Hoare triple {5619#true} assume !(~n < 1); {5619#true} is VALID [2020-07-08 12:14:06,764 INFO L280 TraceCheckUtils]: 14: Hoare triple {5619#true} assume 1 == ~n;#res := 1; {5775#(and (<= 1 |fibo2_#res|) (<= |fibo2_#res| 1))} is VALID [2020-07-08 12:14:06,765 INFO L280 TraceCheckUtils]: 15: Hoare triple {5775#(and (<= 1 |fibo2_#res|) (<= |fibo2_#res| 1))} assume true; {5775#(and (<= 1 |fibo2_#res|) (<= |fibo2_#res| 1))} is VALID [2020-07-08 12:14:06,766 INFO L275 TraceCheckUtils]: 16: Hoare quadruple {5775#(and (<= 1 |fibo2_#res|) (<= |fibo2_#res| 1))} {5619#true} #57#return; {5768#(and (<= 1 |fibo1_#t~ret0|) (<= |fibo1_#t~ret0| 1))} is VALID [2020-07-08 12:14:06,767 INFO L280 TraceCheckUtils]: 17: Hoare triple {5768#(and (<= 1 |fibo1_#t~ret0|) (<= |fibo1_#t~ret0| 1))} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {5768#(and (<= 1 |fibo1_#t~ret0|) (<= |fibo1_#t~ret0| 1))} is VALID [2020-07-08 12:14:06,767 INFO L263 TraceCheckUtils]: 18: Hoare triple {5768#(and (<= 1 |fibo1_#t~ret0|) (<= |fibo1_#t~ret0| 1))} call #t~ret1 := fibo2(~n - 2); {5619#true} is VALID [2020-07-08 12:14:06,767 INFO L280 TraceCheckUtils]: 19: Hoare triple {5619#true} ~n := #in~n; {5619#true} is VALID [2020-07-08 12:14:06,768 INFO L280 TraceCheckUtils]: 20: Hoare triple {5619#true} assume ~n < 1;#res := 0; {5776#(and (<= |fibo2_#res| 0) (<= 0 |fibo2_#res|))} is VALID [2020-07-08 12:14:06,768 INFO L280 TraceCheckUtils]: 21: Hoare triple {5776#(and (<= |fibo2_#res| 0) (<= 0 |fibo2_#res|))} assume true; {5776#(and (<= |fibo2_#res| 0) (<= 0 |fibo2_#res|))} is VALID [2020-07-08 12:14:06,770 INFO L275 TraceCheckUtils]: 22: Hoare quadruple {5776#(and (<= |fibo2_#res| 0) (<= 0 |fibo2_#res|))} {5768#(and (<= 1 |fibo1_#t~ret0|) (<= |fibo1_#t~ret0| 1))} #59#return; {5773#(and (<= 1 (+ |fibo1_#t~ret1| |fibo1_#t~ret0|)) (<= (+ |fibo1_#t~ret1| |fibo1_#t~ret0|) 1))} is VALID [2020-07-08 12:14:06,771 INFO L280 TraceCheckUtils]: 23: Hoare triple {5773#(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~ret0;havoc #t~ret1; {5774#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} is VALID [2020-07-08 12:14:06,772 INFO L280 TraceCheckUtils]: 24: Hoare triple {5774#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} assume true; {5774#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} is VALID [2020-07-08 12:14:06,773 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {5774#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} {5619#true} #53#return; {5755#(and (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|))} is VALID [2020-07-08 12:14:06,773 INFO L280 TraceCheckUtils]: 26: Hoare triple {5755#(and (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|))} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {5755#(and (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|))} is VALID [2020-07-08 12:14:06,774 INFO L263 TraceCheckUtils]: 27: Hoare triple {5755#(and (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|))} call #t~ret3 := fibo1(~n - 2); {5619#true} is VALID [2020-07-08 12:14:06,774 INFO L280 TraceCheckUtils]: 28: Hoare triple {5619#true} ~n := #in~n; {5619#true} is VALID [2020-07-08 12:14:06,774 INFO L280 TraceCheckUtils]: 29: Hoare triple {5619#true} assume !(~n < 1); {5619#true} is VALID [2020-07-08 12:14:06,775 INFO L280 TraceCheckUtils]: 30: Hoare triple {5619#true} assume 1 == ~n;#res := 1; {5774#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} is VALID [2020-07-08 12:14:06,776 INFO L280 TraceCheckUtils]: 31: Hoare triple {5774#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} assume true; {5774#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} is VALID [2020-07-08 12:14:06,777 INFO L275 TraceCheckUtils]: 32: Hoare quadruple {5774#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} {5755#(and (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|))} #55#return; {5761#(and (<= 2 (+ |fibo2_#t~ret3| |fibo2_#t~ret2|)) (<= (+ |fibo2_#t~ret3| |fibo2_#t~ret2|) 2))} is VALID [2020-07-08 12:14:06,778 INFO L280 TraceCheckUtils]: 33: Hoare triple {5761#(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; {5762#(and (<= |fibo2_#res| 2) (<= 2 |fibo2_#res|))} is VALID [2020-07-08 12:14:06,779 INFO L280 TraceCheckUtils]: 34: Hoare triple {5762#(and (<= |fibo2_#res| 2) (<= 2 |fibo2_#res|))} assume true; {5762#(and (<= |fibo2_#res| 2) (<= 2 |fibo2_#res|))} is VALID [2020-07-08 12:14:06,780 INFO L275 TraceCheckUtils]: 35: Hoare quadruple {5762#(and (<= |fibo2_#res| 2) (<= 2 |fibo2_#res|))} {5619#true} #57#return; {5716#(and (<= |fibo1_#t~ret0| 2) (<= 2 |fibo1_#t~ret0|))} is VALID [2020-07-08 12:14:06,781 INFO L280 TraceCheckUtils]: 36: Hoare triple {5716#(and (<= |fibo1_#t~ret0| 2) (<= 2 |fibo1_#t~ret0|))} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {5716#(and (<= |fibo1_#t~ret0| 2) (<= 2 |fibo1_#t~ret0|))} is VALID [2020-07-08 12:14:06,781 INFO L263 TraceCheckUtils]: 37: Hoare triple {5716#(and (<= |fibo1_#t~ret0| 2) (<= 2 |fibo1_#t~ret0|))} call #t~ret1 := fibo2(~n - 2); {5619#true} is VALID [2020-07-08 12:14:06,782 INFO L280 TraceCheckUtils]: 38: Hoare triple {5619#true} ~n := #in~n; {5619#true} is VALID [2020-07-08 12:14:06,782 INFO L280 TraceCheckUtils]: 39: Hoare triple {5619#true} assume !(~n < 1); {5619#true} is VALID [2020-07-08 12:14:06,782 INFO L280 TraceCheckUtils]: 40: Hoare triple {5619#true} assume !(1 == ~n); {5619#true} is VALID [2020-07-08 12:14:06,782 INFO L263 TraceCheckUtils]: 41: Hoare triple {5619#true} call #t~ret2 := fibo1(~n - 1); {5619#true} is VALID [2020-07-08 12:14:06,782 INFO L280 TraceCheckUtils]: 42: Hoare triple {5619#true} ~n := #in~n; {5619#true} is VALID [2020-07-08 12:14:06,782 INFO L280 TraceCheckUtils]: 43: Hoare triple {5619#true} assume !(~n < 1); {5619#true} is VALID [2020-07-08 12:14:06,783 INFO L280 TraceCheckUtils]: 44: Hoare triple {5619#true} assume 1 == ~n;#res := 1; {5774#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} is VALID [2020-07-08 12:14:06,784 INFO L280 TraceCheckUtils]: 45: Hoare triple {5774#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} assume true; {5774#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} is VALID [2020-07-08 12:14:06,785 INFO L275 TraceCheckUtils]: 46: Hoare quadruple {5774#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} {5619#true} #53#return; {5755#(and (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|))} is VALID [2020-07-08 12:14:06,786 INFO L280 TraceCheckUtils]: 47: Hoare triple {5755#(and (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|))} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {5755#(and (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|))} is VALID [2020-07-08 12:14:06,786 INFO L263 TraceCheckUtils]: 48: Hoare triple {5755#(and (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|))} call #t~ret3 := fibo1(~n - 2); {5619#true} is VALID [2020-07-08 12:14:06,786 INFO L280 TraceCheckUtils]: 49: Hoare triple {5619#true} ~n := #in~n; {5619#true} is VALID [2020-07-08 12:14:06,787 INFO L280 TraceCheckUtils]: 50: Hoare triple {5619#true} assume ~n < 1;#res := 0; {5787#(and (<= |fibo1_#res| 0) (<= 0 |fibo1_#res|))} is VALID [2020-07-08 12:14:06,788 INFO L280 TraceCheckUtils]: 51: Hoare triple {5787#(and (<= |fibo1_#res| 0) (<= 0 |fibo1_#res|))} assume true; {5787#(and (<= |fibo1_#res| 0) (<= 0 |fibo1_#res|))} is VALID [2020-07-08 12:14:06,789 INFO L275 TraceCheckUtils]: 52: Hoare quadruple {5787#(and (<= |fibo1_#res| 0) (<= 0 |fibo1_#res|))} {5755#(and (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|))} #55#return; {5786#(and (<= 1 (+ |fibo2_#t~ret3| |fibo2_#t~ret2|)) (<= (+ |fibo2_#t~ret3| |fibo2_#t~ret2|) 1))} is VALID [2020-07-08 12:14:06,791 INFO L280 TraceCheckUtils]: 53: Hoare triple {5786#(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; {5775#(and (<= 1 |fibo2_#res|) (<= |fibo2_#res| 1))} is VALID [2020-07-08 12:14:06,791 INFO L280 TraceCheckUtils]: 54: Hoare triple {5775#(and (<= 1 |fibo2_#res|) (<= |fibo2_#res| 1))} assume true; {5775#(and (<= 1 |fibo2_#res|) (<= |fibo2_#res| 1))} is VALID [2020-07-08 12:14:06,793 INFO L275 TraceCheckUtils]: 55: Hoare quadruple {5775#(and (<= 1 |fibo2_#res|) (<= |fibo2_#res| 1))} {5716#(and (<= |fibo1_#t~ret0| 2) (<= 2 |fibo1_#t~ret0|))} #59#return; {5735#(and (<= (+ |fibo1_#t~ret1| |fibo1_#t~ret0|) 3) (<= 3 (+ |fibo1_#t~ret1| |fibo1_#t~ret0|)))} is VALID [2020-07-08 12:14:06,794 INFO L280 TraceCheckUtils]: 56: Hoare triple {5735#(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~ret0;havoc #t~ret1; {5736#(and (<= 3 |fibo1_#res|) (<= |fibo1_#res| 3))} is VALID [2020-07-08 12:14:06,795 INFO L280 TraceCheckUtils]: 57: Hoare triple {5736#(and (<= 3 |fibo1_#res|) (<= |fibo1_#res| 3))} assume true; {5736#(and (<= 3 |fibo1_#res|) (<= |fibo1_#res| 3))} is VALID [2020-07-08 12:14:06,796 INFO L275 TraceCheckUtils]: 58: Hoare quadruple {5736#(and (<= 3 |fibo1_#res|) (<= |fibo1_#res| 3))} {5619#true} #51#return; {5682#(and (<= 3 |main_#t~ret4|) (<= |main_#t~ret4| 3))} is VALID [2020-07-08 12:14:06,803 INFO L263 TraceCheckUtils]: 0: Hoare triple {5619#true} call ULTIMATE.init(); {5619#true} is VALID [2020-07-08 12:14:06,803 INFO L280 TraceCheckUtils]: 1: Hoare triple {5619#true} assume true; {5619#true} is VALID [2020-07-08 12:14:06,804 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {5619#true} {5619#true} #47#return; {5619#true} is VALID [2020-07-08 12:14:06,804 INFO L263 TraceCheckUtils]: 3: Hoare triple {5619#true} call #t~ret5 := main(); {5619#true} is VALID [2020-07-08 12:14:06,804 INFO L280 TraceCheckUtils]: 4: Hoare triple {5619#true} ~x~0 := 4; {5619#true} is VALID [2020-07-08 12:14:06,804 INFO L263 TraceCheckUtils]: 5: Hoare triple {5619#true} call #t~ret4 := fibo1(~x~0); {5619#true} is VALID [2020-07-08 12:14:06,804 INFO L280 TraceCheckUtils]: 6: Hoare triple {5619#true} ~n := #in~n; {5619#true} is VALID [2020-07-08 12:14:06,805 INFO L280 TraceCheckUtils]: 7: Hoare triple {5619#true} assume !(~n < 1); {5619#true} is VALID [2020-07-08 12:14:06,805 INFO L280 TraceCheckUtils]: 8: Hoare triple {5619#true} assume !(1 == ~n); {5619#true} is VALID [2020-07-08 12:14:06,805 INFO L263 TraceCheckUtils]: 9: Hoare triple {5619#true} call #t~ret0 := fibo2(~n - 1); {5619#true} is VALID [2020-07-08 12:14:06,805 INFO L280 TraceCheckUtils]: 10: Hoare triple {5619#true} ~n := #in~n; {5619#true} is VALID [2020-07-08 12:14:06,805 INFO L280 TraceCheckUtils]: 11: Hoare triple {5619#true} assume !(~n < 1); {5619#true} is VALID [2020-07-08 12:14:06,806 INFO L280 TraceCheckUtils]: 12: Hoare triple {5619#true} assume !(1 == ~n); {5619#true} is VALID [2020-07-08 12:14:06,806 INFO L263 TraceCheckUtils]: 13: Hoare triple {5619#true} call #t~ret2 := fibo1(~n - 1); {5619#true} is VALID [2020-07-08 12:14:06,806 INFO L280 TraceCheckUtils]: 14: Hoare triple {5619#true} ~n := #in~n; {5619#true} is VALID [2020-07-08 12:14:06,806 INFO L280 TraceCheckUtils]: 15: Hoare triple {5619#true} assume !(~n < 1); {5619#true} is VALID [2020-07-08 12:14:06,806 INFO L280 TraceCheckUtils]: 16: Hoare triple {5619#true} assume !(1 == ~n); {5619#true} is VALID [2020-07-08 12:14:06,807 INFO L263 TraceCheckUtils]: 17: Hoare triple {5619#true} call #t~ret0 := fibo2(~n - 1); {5619#true} is VALID [2020-07-08 12:14:06,807 INFO L280 TraceCheckUtils]: 18: Hoare triple {5619#true} ~n := #in~n; {5619#true} is VALID [2020-07-08 12:14:06,807 INFO L280 TraceCheckUtils]: 19: Hoare triple {5619#true} assume !(~n < 1); {5619#true} is VALID [2020-07-08 12:14:06,808 INFO L280 TraceCheckUtils]: 20: Hoare triple {5619#true} assume 1 == ~n;#res := 1; {5775#(and (<= 1 |fibo2_#res|) (<= |fibo2_#res| 1))} is VALID [2020-07-08 12:14:06,809 INFO L280 TraceCheckUtils]: 21: Hoare triple {5775#(and (<= 1 |fibo2_#res|) (<= |fibo2_#res| 1))} assume true; {5775#(and (<= 1 |fibo2_#res|) (<= |fibo2_#res| 1))} is VALID [2020-07-08 12:14:06,810 INFO L275 TraceCheckUtils]: 22: Hoare quadruple {5775#(and (<= 1 |fibo2_#res|) (<= |fibo2_#res| 1))} {5619#true} #57#return; {5768#(and (<= 1 |fibo1_#t~ret0|) (<= |fibo1_#t~ret0| 1))} is VALID [2020-07-08 12:14:06,810 INFO L280 TraceCheckUtils]: 23: Hoare triple {5768#(and (<= 1 |fibo1_#t~ret0|) (<= |fibo1_#t~ret0| 1))} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {5768#(and (<= 1 |fibo1_#t~ret0|) (<= |fibo1_#t~ret0| 1))} is VALID [2020-07-08 12:14:06,811 INFO L263 TraceCheckUtils]: 24: Hoare triple {5768#(and (<= 1 |fibo1_#t~ret0|) (<= |fibo1_#t~ret0| 1))} call #t~ret1 := fibo2(~n - 2); {5619#true} is VALID [2020-07-08 12:14:06,811 INFO L280 TraceCheckUtils]: 25: Hoare triple {5619#true} ~n := #in~n; {5619#true} is VALID [2020-07-08 12:14:06,812 INFO L280 TraceCheckUtils]: 26: Hoare triple {5619#true} assume ~n < 1;#res := 0; {5776#(and (<= |fibo2_#res| 0) (<= 0 |fibo2_#res|))} is VALID [2020-07-08 12:14:06,812 INFO L280 TraceCheckUtils]: 27: Hoare triple {5776#(and (<= |fibo2_#res| 0) (<= 0 |fibo2_#res|))} assume true; {5776#(and (<= |fibo2_#res| 0) (<= 0 |fibo2_#res|))} is VALID [2020-07-08 12:14:06,814 INFO L275 TraceCheckUtils]: 28: Hoare quadruple {5776#(and (<= |fibo2_#res| 0) (<= 0 |fibo2_#res|))} {5768#(and (<= 1 |fibo1_#t~ret0|) (<= |fibo1_#t~ret0| 1))} #59#return; {5773#(and (<= 1 (+ |fibo1_#t~ret1| |fibo1_#t~ret0|)) (<= (+ |fibo1_#t~ret1| |fibo1_#t~ret0|) 1))} is VALID [2020-07-08 12:14:06,815 INFO L280 TraceCheckUtils]: 29: Hoare triple {5773#(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~ret0;havoc #t~ret1; {5774#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} is VALID [2020-07-08 12:14:06,815 INFO L280 TraceCheckUtils]: 30: Hoare triple {5774#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} assume true; {5774#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} is VALID [2020-07-08 12:14:06,816 INFO L275 TraceCheckUtils]: 31: Hoare quadruple {5774#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} {5619#true} #53#return; {5755#(and (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|))} is VALID [2020-07-08 12:14:06,817 INFO L280 TraceCheckUtils]: 32: Hoare triple {5755#(and (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|))} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {5755#(and (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|))} is VALID [2020-07-08 12:14:06,817 INFO L263 TraceCheckUtils]: 33: Hoare triple {5755#(and (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|))} call #t~ret3 := fibo1(~n - 2); {5619#true} is VALID [2020-07-08 12:14:06,817 INFO L280 TraceCheckUtils]: 34: Hoare triple {5619#true} ~n := #in~n; {5619#true} is VALID [2020-07-08 12:14:06,818 INFO L280 TraceCheckUtils]: 35: Hoare triple {5619#true} assume !(~n < 1); {5619#true} is VALID [2020-07-08 12:14:06,818 INFO L280 TraceCheckUtils]: 36: Hoare triple {5619#true} assume 1 == ~n;#res := 1; {5774#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} is VALID [2020-07-08 12:14:06,819 INFO L280 TraceCheckUtils]: 37: Hoare triple {5774#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} assume true; {5774#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} is VALID [2020-07-08 12:14:06,820 INFO L275 TraceCheckUtils]: 38: Hoare quadruple {5774#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} {5755#(and (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|))} #55#return; {5761#(and (<= 2 (+ |fibo2_#t~ret3| |fibo2_#t~ret2|)) (<= (+ |fibo2_#t~ret3| |fibo2_#t~ret2|) 2))} is VALID [2020-07-08 12:14:06,821 INFO L280 TraceCheckUtils]: 39: Hoare triple {5761#(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; {5762#(and (<= |fibo2_#res| 2) (<= 2 |fibo2_#res|))} is VALID [2020-07-08 12:14:06,822 INFO L280 TraceCheckUtils]: 40: Hoare triple {5762#(and (<= |fibo2_#res| 2) (<= 2 |fibo2_#res|))} assume true; {5762#(and (<= |fibo2_#res| 2) (<= 2 |fibo2_#res|))} is VALID [2020-07-08 12:14:06,823 INFO L275 TraceCheckUtils]: 41: Hoare quadruple {5762#(and (<= |fibo2_#res| 2) (<= 2 |fibo2_#res|))} {5619#true} #57#return; {5716#(and (<= |fibo1_#t~ret0| 2) (<= 2 |fibo1_#t~ret0|))} is VALID [2020-07-08 12:14:06,823 INFO L280 TraceCheckUtils]: 42: Hoare triple {5716#(and (<= |fibo1_#t~ret0| 2) (<= 2 |fibo1_#t~ret0|))} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {5716#(and (<= |fibo1_#t~ret0| 2) (<= 2 |fibo1_#t~ret0|))} is VALID [2020-07-08 12:14:06,823 INFO L263 TraceCheckUtils]: 43: Hoare triple {5716#(and (<= |fibo1_#t~ret0| 2) (<= 2 |fibo1_#t~ret0|))} call #t~ret1 := fibo2(~n - 2); {5619#true} is VALID [2020-07-08 12:14:06,824 INFO L280 TraceCheckUtils]: 44: Hoare triple {5619#true} ~n := #in~n; {5619#true} is VALID [2020-07-08 12:14:06,824 INFO L280 TraceCheckUtils]: 45: Hoare triple {5619#true} assume !(~n < 1); {5619#true} is VALID [2020-07-08 12:14:06,824 INFO L280 TraceCheckUtils]: 46: Hoare triple {5619#true} assume !(1 == ~n); {5619#true} is VALID [2020-07-08 12:14:06,824 INFO L263 TraceCheckUtils]: 47: Hoare triple {5619#true} call #t~ret2 := fibo1(~n - 1); {5619#true} is VALID [2020-07-08 12:14:06,824 INFO L280 TraceCheckUtils]: 48: Hoare triple {5619#true} ~n := #in~n; {5619#true} is VALID [2020-07-08 12:14:06,825 INFO L280 TraceCheckUtils]: 49: Hoare triple {5619#true} assume !(~n < 1); {5619#true} is VALID [2020-07-08 12:14:06,825 INFO L280 TraceCheckUtils]: 50: Hoare triple {5619#true} assume 1 == ~n;#res := 1; {5774#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} is VALID [2020-07-08 12:14:06,826 INFO L280 TraceCheckUtils]: 51: Hoare triple {5774#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} assume true; {5774#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} is VALID [2020-07-08 12:14:06,831 INFO L275 TraceCheckUtils]: 52: Hoare quadruple {5774#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} {5619#true} #53#return; {5755#(and (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|))} is VALID [2020-07-08 12:14:06,831 INFO L280 TraceCheckUtils]: 53: Hoare triple {5755#(and (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|))} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {5755#(and (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|))} is VALID [2020-07-08 12:14:06,832 INFO L263 TraceCheckUtils]: 54: Hoare triple {5755#(and (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|))} call #t~ret3 := fibo1(~n - 2); {5619#true} is VALID [2020-07-08 12:14:06,832 INFO L280 TraceCheckUtils]: 55: Hoare triple {5619#true} ~n := #in~n; {5619#true} is VALID [2020-07-08 12:14:06,832 INFO L280 TraceCheckUtils]: 56: Hoare triple {5619#true} assume ~n < 1;#res := 0; {5787#(and (<= |fibo1_#res| 0) (<= 0 |fibo1_#res|))} is VALID [2020-07-08 12:14:06,833 INFO L280 TraceCheckUtils]: 57: Hoare triple {5787#(and (<= |fibo1_#res| 0) (<= 0 |fibo1_#res|))} assume true; {5787#(and (<= |fibo1_#res| 0) (<= 0 |fibo1_#res|))} is VALID [2020-07-08 12:14:06,834 INFO L275 TraceCheckUtils]: 58: Hoare quadruple {5787#(and (<= |fibo1_#res| 0) (<= 0 |fibo1_#res|))} {5755#(and (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|))} #55#return; {5786#(and (<= 1 (+ |fibo2_#t~ret3| |fibo2_#t~ret2|)) (<= (+ |fibo2_#t~ret3| |fibo2_#t~ret2|) 1))} is VALID [2020-07-08 12:14:06,835 INFO L280 TraceCheckUtils]: 59: Hoare triple {5786#(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; {5775#(and (<= 1 |fibo2_#res|) (<= |fibo2_#res| 1))} is VALID [2020-07-08 12:14:06,836 INFO L280 TraceCheckUtils]: 60: Hoare triple {5775#(and (<= 1 |fibo2_#res|) (<= |fibo2_#res| 1))} assume true; {5775#(and (<= 1 |fibo2_#res|) (<= |fibo2_#res| 1))} is VALID [2020-07-08 12:14:06,837 INFO L275 TraceCheckUtils]: 61: Hoare quadruple {5775#(and (<= 1 |fibo2_#res|) (<= |fibo2_#res| 1))} {5716#(and (<= |fibo1_#t~ret0| 2) (<= 2 |fibo1_#t~ret0|))} #59#return; {5735#(and (<= (+ |fibo1_#t~ret1| |fibo1_#t~ret0|) 3) (<= 3 (+ |fibo1_#t~ret1| |fibo1_#t~ret0|)))} is VALID [2020-07-08 12:14:06,838 INFO L280 TraceCheckUtils]: 62: Hoare triple {5735#(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~ret0;havoc #t~ret1; {5736#(and (<= 3 |fibo1_#res|) (<= |fibo1_#res| 3))} is VALID [2020-07-08 12:14:06,839 INFO L280 TraceCheckUtils]: 63: Hoare triple {5736#(and (<= 3 |fibo1_#res|) (<= |fibo1_#res| 3))} assume true; {5736#(and (<= 3 |fibo1_#res|) (<= |fibo1_#res| 3))} is VALID [2020-07-08 12:14:06,840 INFO L275 TraceCheckUtils]: 64: Hoare quadruple {5736#(and (<= 3 |fibo1_#res|) (<= |fibo1_#res| 3))} {5619#true} #51#return; {5682#(and (<= 3 |main_#t~ret4|) (<= |main_#t~ret4| 3))} is VALID [2020-07-08 12:14:06,840 INFO L280 TraceCheckUtils]: 65: Hoare triple {5682#(and (<= 3 |main_#t~ret4|) (<= |main_#t~ret4| 3))} assume -2147483648 <= #t~ret4 && #t~ret4 <= 2147483647;~result~0 := #t~ret4;havoc #t~ret4; {5683#(and (<= main_~result~0 3) (<= 3 main_~result~0))} is VALID [2020-07-08 12:14:06,841 INFO L280 TraceCheckUtils]: 66: Hoare triple {5683#(and (<= main_~result~0 3) (<= 3 main_~result~0))} assume 3 != ~result~0; {5620#false} is VALID [2020-07-08 12:14:06,841 INFO L280 TraceCheckUtils]: 67: Hoare triple {5620#false} assume !false; {5620#false} is VALID [2020-07-08 12:14:06,847 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2020-07-08 12:14:06,847 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884333861] [2020-07-08 12:14:06,847 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1110407580] [2020-07-08 12:14:06,847 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 [2020-07-08 12:14:06,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:14:06,881 INFO L264 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 39 conjunts are in the unsatisfiable core [2020-07-08 12:14:06,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:14:06,915 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-08 12:14:07,341 INFO L263 TraceCheckUtils]: 0: Hoare triple {5619#true} call ULTIMATE.init(); {5619#true} is VALID [2020-07-08 12:14:07,341 INFO L280 TraceCheckUtils]: 1: Hoare triple {5619#true} assume true; {5619#true} is VALID [2020-07-08 12:14:07,341 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {5619#true} {5619#true} #47#return; {5619#true} is VALID [2020-07-08 12:14:07,341 INFO L263 TraceCheckUtils]: 3: Hoare triple {5619#true} call #t~ret5 := main(); {5619#true} is VALID [2020-07-08 12:14:07,342 INFO L280 TraceCheckUtils]: 4: Hoare triple {5619#true} ~x~0 := 4; {5619#true} is VALID [2020-07-08 12:14:07,342 INFO L263 TraceCheckUtils]: 5: Hoare triple {5619#true} call #t~ret4 := fibo1(~x~0); {5619#true} is VALID [2020-07-08 12:14:07,342 INFO L280 TraceCheckUtils]: 6: Hoare triple {5619#true} ~n := #in~n; {5619#true} is VALID [2020-07-08 12:14:07,342 INFO L280 TraceCheckUtils]: 7: Hoare triple {5619#true} assume !(~n < 1); {5619#true} is VALID [2020-07-08 12:14:07,342 INFO L280 TraceCheckUtils]: 8: Hoare triple {5619#true} assume !(1 == ~n); {5619#true} is VALID [2020-07-08 12:14:07,342 INFO L263 TraceCheckUtils]: 9: Hoare triple {5619#true} call #t~ret0 := fibo2(~n - 1); {5619#true} is VALID [2020-07-08 12:14:07,343 INFO L280 TraceCheckUtils]: 10: Hoare triple {5619#true} ~n := #in~n; {5619#true} is VALID [2020-07-08 12:14:07,343 INFO L280 TraceCheckUtils]: 11: Hoare triple {5619#true} assume !(~n < 1); {5619#true} is VALID [2020-07-08 12:14:07,343 INFO L280 TraceCheckUtils]: 12: Hoare triple {5619#true} assume !(1 == ~n); {5619#true} is VALID [2020-07-08 12:14:07,343 INFO L263 TraceCheckUtils]: 13: Hoare triple {5619#true} call #t~ret2 := fibo1(~n - 1); {5619#true} is VALID [2020-07-08 12:14:07,343 INFO L280 TraceCheckUtils]: 14: Hoare triple {5619#true} ~n := #in~n; {5619#true} is VALID [2020-07-08 12:14:07,344 INFO L280 TraceCheckUtils]: 15: Hoare triple {5619#true} assume !(~n < 1); {5619#true} is VALID [2020-07-08 12:14:07,344 INFO L280 TraceCheckUtils]: 16: Hoare triple {5619#true} assume !(1 == ~n); {5619#true} is VALID [2020-07-08 12:14:07,344 INFO L263 TraceCheckUtils]: 17: Hoare triple {5619#true} call #t~ret0 := fibo2(~n - 1); {5619#true} is VALID [2020-07-08 12:14:07,344 INFO L280 TraceCheckUtils]: 18: Hoare triple {5619#true} ~n := #in~n; {5619#true} is VALID [2020-07-08 12:14:07,344 INFO L280 TraceCheckUtils]: 19: Hoare triple {5619#true} assume !(~n < 1); {5619#true} is VALID [2020-07-08 12:14:07,346 INFO L280 TraceCheckUtils]: 20: Hoare triple {5619#true} assume 1 == ~n;#res := 1; {5775#(and (<= 1 |fibo2_#res|) (<= |fibo2_#res| 1))} is VALID [2020-07-08 12:14:07,348 INFO L280 TraceCheckUtils]: 21: Hoare triple {5775#(and (<= 1 |fibo2_#res|) (<= |fibo2_#res| 1))} assume true; {5775#(and (<= 1 |fibo2_#res|) (<= |fibo2_#res| 1))} is VALID [2020-07-08 12:14:07,349 INFO L275 TraceCheckUtils]: 22: Hoare quadruple {5775#(and (<= 1 |fibo2_#res|) (<= |fibo2_#res| 1))} {5619#true} #57#return; {5768#(and (<= 1 |fibo1_#t~ret0|) (<= |fibo1_#t~ret0| 1))} is VALID [2020-07-08 12:14:07,349 INFO L280 TraceCheckUtils]: 23: Hoare triple {5768#(and (<= 1 |fibo1_#t~ret0|) (<= |fibo1_#t~ret0| 1))} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {5768#(and (<= 1 |fibo1_#t~ret0|) (<= |fibo1_#t~ret0| 1))} is VALID [2020-07-08 12:14:07,350 INFO L263 TraceCheckUtils]: 24: Hoare triple {5768#(and (<= 1 |fibo1_#t~ret0|) (<= |fibo1_#t~ret0| 1))} call #t~ret1 := fibo2(~n - 2); {5619#true} is VALID [2020-07-08 12:14:07,350 INFO L280 TraceCheckUtils]: 25: Hoare triple {5619#true} ~n := #in~n; {5619#true} is VALID [2020-07-08 12:14:07,350 INFO L280 TraceCheckUtils]: 26: Hoare triple {5619#true} assume ~n < 1;#res := 0; {5776#(and (<= |fibo2_#res| 0) (<= 0 |fibo2_#res|))} is VALID [2020-07-08 12:14:07,351 INFO L280 TraceCheckUtils]: 27: Hoare triple {5776#(and (<= |fibo2_#res| 0) (<= 0 |fibo2_#res|))} assume true; {5776#(and (<= |fibo2_#res| 0) (<= 0 |fibo2_#res|))} is VALID [2020-07-08 12:14:07,352 INFO L275 TraceCheckUtils]: 28: Hoare quadruple {5776#(and (<= |fibo2_#res| 0) (<= 0 |fibo2_#res|))} {5768#(and (<= 1 |fibo1_#t~ret0|) (<= |fibo1_#t~ret0| 1))} #59#return; {5875#(and (<= 1 |fibo1_#t~ret0|) (<= 0 |fibo1_#t~ret1|) (<= |fibo1_#t~ret1| 0) (<= |fibo1_#t~ret0| 1))} is VALID [2020-07-08 12:14:07,353 INFO L280 TraceCheckUtils]: 29: Hoare triple {5875#(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~ret0;havoc #t~ret1; {5774#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} is VALID [2020-07-08 12:14:07,354 INFO L280 TraceCheckUtils]: 30: Hoare triple {5774#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} assume true; {5774#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} is VALID [2020-07-08 12:14:07,355 INFO L275 TraceCheckUtils]: 31: Hoare quadruple {5774#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} {5619#true} #53#return; {5755#(and (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|))} is VALID [2020-07-08 12:14:07,355 INFO L280 TraceCheckUtils]: 32: Hoare triple {5755#(and (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|))} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {5755#(and (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|))} is VALID [2020-07-08 12:14:07,356 INFO L263 TraceCheckUtils]: 33: Hoare triple {5755#(and (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|))} call #t~ret3 := fibo1(~n - 2); {5619#true} is VALID [2020-07-08 12:14:07,356 INFO L280 TraceCheckUtils]: 34: Hoare triple {5619#true} ~n := #in~n; {5619#true} is VALID [2020-07-08 12:14:07,356 INFO L280 TraceCheckUtils]: 35: Hoare triple {5619#true} assume !(~n < 1); {5619#true} is VALID [2020-07-08 12:14:07,357 INFO L280 TraceCheckUtils]: 36: Hoare triple {5619#true} assume 1 == ~n;#res := 1; {5774#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} is VALID [2020-07-08 12:14:07,357 INFO L280 TraceCheckUtils]: 37: Hoare triple {5774#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} assume true; {5774#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} is VALID [2020-07-08 12:14:07,359 INFO L275 TraceCheckUtils]: 38: Hoare quadruple {5774#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} {5755#(and (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|))} #55#return; {5906#(and (<= |fibo2_#t~ret2| 1) (<= |fibo2_#t~ret3| 1) (<= 1 |fibo2_#t~ret3|) (<= 1 |fibo2_#t~ret2|))} is VALID [2020-07-08 12:14:07,360 INFO L280 TraceCheckUtils]: 39: Hoare triple {5906#(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; {5762#(and (<= |fibo2_#res| 2) (<= 2 |fibo2_#res|))} is VALID [2020-07-08 12:14:07,360 INFO L280 TraceCheckUtils]: 40: Hoare triple {5762#(and (<= |fibo2_#res| 2) (<= 2 |fibo2_#res|))} assume true; {5762#(and (<= |fibo2_#res| 2) (<= 2 |fibo2_#res|))} is VALID [2020-07-08 12:14:07,361 INFO L275 TraceCheckUtils]: 41: Hoare quadruple {5762#(and (<= |fibo2_#res| 2) (<= 2 |fibo2_#res|))} {5619#true} #57#return; {5716#(and (<= |fibo1_#t~ret0| 2) (<= 2 |fibo1_#t~ret0|))} is VALID [2020-07-08 12:14:07,362 INFO L280 TraceCheckUtils]: 42: Hoare triple {5716#(and (<= |fibo1_#t~ret0| 2) (<= 2 |fibo1_#t~ret0|))} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {5716#(and (<= |fibo1_#t~ret0| 2) (<= 2 |fibo1_#t~ret0|))} is VALID [2020-07-08 12:14:07,362 INFO L263 TraceCheckUtils]: 43: Hoare triple {5716#(and (<= |fibo1_#t~ret0| 2) (<= 2 |fibo1_#t~ret0|))} call #t~ret1 := fibo2(~n - 2); {5619#true} is VALID [2020-07-08 12:14:07,363 INFO L280 TraceCheckUtils]: 44: Hoare triple {5619#true} ~n := #in~n; {5619#true} is VALID [2020-07-08 12:14:07,363 INFO L280 TraceCheckUtils]: 45: Hoare triple {5619#true} assume !(~n < 1); {5619#true} is VALID [2020-07-08 12:14:07,363 INFO L280 TraceCheckUtils]: 46: Hoare triple {5619#true} assume !(1 == ~n); {5619#true} is VALID [2020-07-08 12:14:07,363 INFO L263 TraceCheckUtils]: 47: Hoare triple {5619#true} call #t~ret2 := fibo1(~n - 1); {5619#true} is VALID [2020-07-08 12:14:07,363 INFO L280 TraceCheckUtils]: 48: Hoare triple {5619#true} ~n := #in~n; {5619#true} is VALID [2020-07-08 12:14:07,364 INFO L280 TraceCheckUtils]: 49: Hoare triple {5619#true} assume !(~n < 1); {5619#true} is VALID [2020-07-08 12:14:07,364 INFO L280 TraceCheckUtils]: 50: Hoare triple {5619#true} assume 1 == ~n;#res := 1; {5774#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} is VALID [2020-07-08 12:14:07,365 INFO L280 TraceCheckUtils]: 51: Hoare triple {5774#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} assume true; {5774#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} is VALID [2020-07-08 12:14:07,366 INFO L275 TraceCheckUtils]: 52: Hoare quadruple {5774#(and (<= 1 |fibo1_#res|) (<= |fibo1_#res| 1))} {5619#true} #53#return; {5755#(and (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|))} is VALID [2020-07-08 12:14:07,367 INFO L280 TraceCheckUtils]: 53: Hoare triple {5755#(and (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|))} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {5755#(and (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|))} is VALID [2020-07-08 12:14:07,367 INFO L263 TraceCheckUtils]: 54: Hoare triple {5755#(and (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|))} call #t~ret3 := fibo1(~n - 2); {5619#true} is VALID [2020-07-08 12:14:07,367 INFO L280 TraceCheckUtils]: 55: Hoare triple {5619#true} ~n := #in~n; {5619#true} is VALID [2020-07-08 12:14:07,368 INFO L280 TraceCheckUtils]: 56: Hoare triple {5619#true} assume ~n < 1;#res := 0; {5787#(and (<= |fibo1_#res| 0) (<= 0 |fibo1_#res|))} is VALID [2020-07-08 12:14:07,368 INFO L280 TraceCheckUtils]: 57: Hoare triple {5787#(and (<= |fibo1_#res| 0) (<= 0 |fibo1_#res|))} assume true; {5787#(and (<= |fibo1_#res| 0) (<= 0 |fibo1_#res|))} is VALID [2020-07-08 12:14:07,369 INFO L275 TraceCheckUtils]: 58: Hoare quadruple {5787#(and (<= |fibo1_#res| 0) (<= 0 |fibo1_#res|))} {5755#(and (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|))} #55#return; {5967#(and (<= 0 |fibo2_#t~ret3|) (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|) (<= |fibo2_#t~ret3| 0))} is VALID [2020-07-08 12:14:07,370 INFO L280 TraceCheckUtils]: 59: Hoare triple {5967#(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; {5775#(and (<= 1 |fibo2_#res|) (<= |fibo2_#res| 1))} is VALID [2020-07-08 12:14:07,371 INFO L280 TraceCheckUtils]: 60: Hoare triple {5775#(and (<= 1 |fibo2_#res|) (<= |fibo2_#res| 1))} assume true; {5775#(and (<= 1 |fibo2_#res|) (<= |fibo2_#res| 1))} is VALID [2020-07-08 12:14:07,372 INFO L275 TraceCheckUtils]: 61: Hoare quadruple {5775#(and (<= 1 |fibo2_#res|) (<= |fibo2_#res| 1))} {5716#(and (<= |fibo1_#t~ret0| 2) (<= 2 |fibo1_#t~ret0|))} #59#return; {5977#(and (<= |fibo1_#t~ret0| 2) (<= 1 |fibo1_#t~ret1|) (<= |fibo1_#t~ret1| 1) (<= 2 |fibo1_#t~ret0|))} is VALID [2020-07-08 12:14:07,373 INFO L280 TraceCheckUtils]: 62: Hoare triple {5977#(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~ret0;havoc #t~ret1; {5736#(and (<= 3 |fibo1_#res|) (<= |fibo1_#res| 3))} is VALID [2020-07-08 12:14:07,373 INFO L280 TraceCheckUtils]: 63: Hoare triple {5736#(and (<= 3 |fibo1_#res|) (<= |fibo1_#res| 3))} assume true; {5736#(and (<= 3 |fibo1_#res|) (<= |fibo1_#res| 3))} is VALID [2020-07-08 12:14:07,374 INFO L275 TraceCheckUtils]: 64: Hoare quadruple {5736#(and (<= 3 |fibo1_#res|) (<= |fibo1_#res| 3))} {5619#true} #51#return; {5682#(and (<= 3 |main_#t~ret4|) (<= |main_#t~ret4| 3))} is VALID [2020-07-08 12:14:07,375 INFO L280 TraceCheckUtils]: 65: Hoare triple {5682#(and (<= 3 |main_#t~ret4|) (<= |main_#t~ret4| 3))} assume -2147483648 <= #t~ret4 && #t~ret4 <= 2147483647;~result~0 := #t~ret4;havoc #t~ret4; {5683#(and (<= main_~result~0 3) (<= 3 main_~result~0))} is VALID [2020-07-08 12:14:07,376 INFO L280 TraceCheckUtils]: 66: Hoare triple {5683#(and (<= main_~result~0 3) (<= 3 main_~result~0))} assume 3 != ~result~0; {5620#false} is VALID [2020-07-08 12:14:07,376 INFO L280 TraceCheckUtils]: 67: Hoare triple {5620#false} assume !false; {5620#false} is VALID [2020-07-08 12:14:07,382 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2020-07-08 12:14:07,383 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-08 12:14:07,383 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 21 [2020-07-08 12:14:07,383 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535095784] [2020-07-08 12:14:07,384 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 68 [2020-07-08 12:14:07,384 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 12:14:07,384 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 21 states. [2020-07-08 12:14:07,444 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 53 edges. 53 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 12:14:07,444 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-07-08 12:14:07,445 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-08 12:14:07,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-07-08 12:14:07,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=373, Unknown=0, NotChecked=0, Total=420 [2020-07-08 12:14:07,445 INFO L87 Difference]: Start difference. First operand 83 states and 109 transitions. Second operand 21 states. [2020-07-08 12:14:08,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 12:14:08,450 INFO L93 Difference]: Finished difference Result 94 states and 122 transitions. [2020-07-08 12:14:08,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-07-08 12:14:08,451 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 68 [2020-07-08 12:14:08,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 12:14:08,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-07-08 12:14:08,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 68 transitions. [2020-07-08 12:14:08,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-07-08 12:14:08,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 68 transitions. [2020-07-08 12:14:08,455 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 17 states and 68 transitions. [2020-07-08 12:14:08,552 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 68 edges. 68 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 12:14:08,555 INFO L225 Difference]: With dead ends: 94 [2020-07-08 12:14:08,555 INFO L226 Difference]: Without dead ends: 90 [2020-07-08 12:14:08,556 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 [2020-07-08 12:14:08,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2020-07-08 12:14:08,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 78. [2020-07-08 12:14:08,606 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 12:14:08,606 INFO L82 GeneralOperation]: Start isEquivalent. First operand 90 states. Second operand 78 states. [2020-07-08 12:14:08,606 INFO L74 IsIncluded]: Start isIncluded. First operand 90 states. Second operand 78 states. [2020-07-08 12:14:08,606 INFO L87 Difference]: Start difference. First operand 90 states. Second operand 78 states. [2020-07-08 12:14:08,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 12:14:08,610 INFO L93 Difference]: Finished difference Result 90 states and 118 transitions. [2020-07-08 12:14:08,611 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 118 transitions. [2020-07-08 12:14:08,611 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 12:14:08,612 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 12:14:08,612 INFO L74 IsIncluded]: Start isIncluded. First operand 78 states. Second operand 90 states. [2020-07-08 12:14:08,612 INFO L87 Difference]: Start difference. First operand 78 states. Second operand 90 states. [2020-07-08 12:14:08,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 12:14:08,615 INFO L93 Difference]: Finished difference Result 90 states and 118 transitions. [2020-07-08 12:14:08,615 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 118 transitions. [2020-07-08 12:14:08,616 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 12:14:08,616 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 12:14:08,616 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 12:14:08,617 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 12:14:08,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-07-08 12:14:08,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 102 transitions. [2020-07-08 12:14:08,620 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 102 transitions. Word has length 68 [2020-07-08 12:14:08,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 12:14:08,620 INFO L479 AbstractCegarLoop]: Abstraction has 78 states and 102 transitions. [2020-07-08 12:14:08,620 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-07-08 12:14:08,620 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 102 transitions. [2020-07-08 12:14:08,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-07-08 12:14:08,622 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 12:14:08,622 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 12:14:08,834 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-07-08 12:14:08,835 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 12:14:08,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 12:14:08,835 INFO L82 PathProgramCache]: Analyzing trace with hash -1504181040, now seen corresponding path program 1 times [2020-07-08 12:14:08,835 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-08 12:14:08,836 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747701482] [2020-07-08 12:14:08,836 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 12:14:08,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:14:08,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:14:08,882 INFO L280 TraceCheckUtils]: 0: Hoare triple {6398#true} assume true; {6398#true} is VALID [2020-07-08 12:14:08,882 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {6398#true} {6398#true} #47#return; {6398#true} is VALID [2020-07-08 12:14:08,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:14:08,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:14:08,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:14:08,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:14:09,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:14:09,075 INFO L280 TraceCheckUtils]: 0: Hoare triple {6398#true} ~n := #in~n; {6398#true} is VALID [2020-07-08 12:14:09,075 INFO L280 TraceCheckUtils]: 1: Hoare triple {6398#true} assume !(~n < 1); {6398#true} is VALID [2020-07-08 12:14:09,076 INFO L280 TraceCheckUtils]: 2: Hoare triple {6398#true} assume 1 == ~n;#res := 1; {6398#true} is VALID [2020-07-08 12:14:09,076 INFO L280 TraceCheckUtils]: 3: Hoare triple {6398#true} assume true; {6398#true} is VALID [2020-07-08 12:14:09,077 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {6398#true} {6606#(and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} #53#return; {6606#(and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} is VALID [2020-07-08 12:14:09,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:14:09,082 INFO L280 TraceCheckUtils]: 0: Hoare triple {6398#true} ~n := #in~n; {6398#true} is VALID [2020-07-08 12:14:09,082 INFO L280 TraceCheckUtils]: 1: Hoare triple {6398#true} assume ~n < 1;#res := 0; {6398#true} is VALID [2020-07-08 12:14:09,082 INFO L280 TraceCheckUtils]: 2: Hoare triple {6398#true} assume true; {6398#true} is VALID [2020-07-08 12:14:09,084 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {6398#true} {6606#(and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} #55#return; {6616#(<= 2 |fibo2_#in~n|)} is VALID [2020-07-08 12:14:09,085 INFO L280 TraceCheckUtils]: 0: Hoare triple {6398#true} ~n := #in~n; {6604#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 12:14:09,085 INFO L280 TraceCheckUtils]: 1: Hoare triple {6604#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {6605#(and (< 0 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} is VALID [2020-07-08 12:14:09,086 INFO L280 TraceCheckUtils]: 2: Hoare triple {6605#(and (< 0 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} assume !(1 == ~n); {6606#(and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} is VALID [2020-07-08 12:14:09,086 INFO L263 TraceCheckUtils]: 3: Hoare triple {6606#(and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} call #t~ret2 := fibo1(~n - 1); {6398#true} is VALID [2020-07-08 12:14:09,087 INFO L280 TraceCheckUtils]: 4: Hoare triple {6398#true} ~n := #in~n; {6398#true} is VALID [2020-07-08 12:14:09,087 INFO L280 TraceCheckUtils]: 5: Hoare triple {6398#true} assume !(~n < 1); {6398#true} is VALID [2020-07-08 12:14:09,087 INFO L280 TraceCheckUtils]: 6: Hoare triple {6398#true} assume 1 == ~n;#res := 1; {6398#true} is VALID [2020-07-08 12:14:09,087 INFO L280 TraceCheckUtils]: 7: Hoare triple {6398#true} assume true; {6398#true} is VALID [2020-07-08 12:14:09,088 INFO L275 TraceCheckUtils]: 8: Hoare quadruple {6398#true} {6606#(and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} #53#return; {6606#(and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} is VALID [2020-07-08 12:14:09,089 INFO L280 TraceCheckUtils]: 9: Hoare triple {6606#(and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {6606#(and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} is VALID [2020-07-08 12:14:09,089 INFO L263 TraceCheckUtils]: 10: Hoare triple {6606#(and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} call #t~ret3 := fibo1(~n - 2); {6398#true} is VALID [2020-07-08 12:14:09,090 INFO L280 TraceCheckUtils]: 11: Hoare triple {6398#true} ~n := #in~n; {6398#true} is VALID [2020-07-08 12:14:09,090 INFO L280 TraceCheckUtils]: 12: Hoare triple {6398#true} assume ~n < 1;#res := 0; {6398#true} is VALID [2020-07-08 12:14:09,090 INFO L280 TraceCheckUtils]: 13: Hoare triple {6398#true} assume true; {6398#true} is VALID [2020-07-08 12:14:09,092 INFO L275 TraceCheckUtils]: 14: Hoare quadruple {6398#true} {6606#(and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} #55#return; {6616#(<= 2 |fibo2_#in~n|)} is VALID [2020-07-08 12:14:09,092 INFO L280 TraceCheckUtils]: 15: Hoare triple {6616#(<= 2 |fibo2_#in~n|)} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647;#res := #t~ret2 + #t~ret3;havoc #t~ret2;havoc #t~ret3; {6616#(<= 2 |fibo2_#in~n|)} is VALID [2020-07-08 12:14:09,093 INFO L280 TraceCheckUtils]: 16: Hoare triple {6616#(<= 2 |fibo2_#in~n|)} assume true; {6616#(<= 2 |fibo2_#in~n|)} is VALID [2020-07-08 12:14:09,094 INFO L275 TraceCheckUtils]: 17: Hoare quadruple {6616#(<= 2 |fibo2_#in~n|)} {6578#(= fibo1_~n |fibo1_#in~n|)} #57#return; {6597#(and (<= 3 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 12:14:09,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:14:09,099 INFO L280 TraceCheckUtils]: 0: Hoare triple {6398#true} ~n := #in~n; {6398#true} is VALID [2020-07-08 12:14:09,099 INFO L280 TraceCheckUtils]: 1: Hoare triple {6398#true} assume !(~n < 1); {6398#true} is VALID [2020-07-08 12:14:09,100 INFO L280 TraceCheckUtils]: 2: Hoare triple {6398#true} assume 1 == ~n;#res := 1; {6398#true} is VALID [2020-07-08 12:14:09,100 INFO L280 TraceCheckUtils]: 3: Hoare triple {6398#true} assume true; {6398#true} is VALID [2020-07-08 12:14:09,101 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {6398#true} {6597#(and (<= 3 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} #59#return; {6603#(<= 3 |fibo1_#in~n|)} is VALID [2020-07-08 12:14:09,101 INFO L280 TraceCheckUtils]: 0: Hoare triple {6398#true} ~n := #in~n; {6578#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 12:14:09,102 INFO L280 TraceCheckUtils]: 1: Hoare triple {6578#(= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {6578#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 12:14:09,102 INFO L280 TraceCheckUtils]: 2: Hoare triple {6578#(= fibo1_~n |fibo1_#in~n|)} assume !(1 == ~n); {6578#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 12:14:09,103 INFO L263 TraceCheckUtils]: 3: Hoare triple {6578#(= fibo1_~n |fibo1_#in~n|)} call #t~ret0 := fibo2(~n - 1); {6398#true} is VALID [2020-07-08 12:14:09,103 INFO L280 TraceCheckUtils]: 4: Hoare triple {6398#true} ~n := #in~n; {6604#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 12:14:09,104 INFO L280 TraceCheckUtils]: 5: Hoare triple {6604#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {6605#(and (< 0 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} is VALID [2020-07-08 12:14:09,105 INFO L280 TraceCheckUtils]: 6: Hoare triple {6605#(and (< 0 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} assume !(1 == ~n); {6606#(and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} is VALID [2020-07-08 12:14:09,105 INFO L263 TraceCheckUtils]: 7: Hoare triple {6606#(and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} call #t~ret2 := fibo1(~n - 1); {6398#true} is VALID [2020-07-08 12:14:09,105 INFO L280 TraceCheckUtils]: 8: Hoare triple {6398#true} ~n := #in~n; {6398#true} is VALID [2020-07-08 12:14:09,105 INFO L280 TraceCheckUtils]: 9: Hoare triple {6398#true} assume !(~n < 1); {6398#true} is VALID [2020-07-08 12:14:09,106 INFO L280 TraceCheckUtils]: 10: Hoare triple {6398#true} assume 1 == ~n;#res := 1; {6398#true} is VALID [2020-07-08 12:14:09,106 INFO L280 TraceCheckUtils]: 11: Hoare triple {6398#true} assume true; {6398#true} is VALID [2020-07-08 12:14:09,107 INFO L275 TraceCheckUtils]: 12: Hoare quadruple {6398#true} {6606#(and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} #53#return; {6606#(and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} is VALID [2020-07-08 12:14:09,107 INFO L280 TraceCheckUtils]: 13: Hoare triple {6606#(and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {6606#(and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} is VALID [2020-07-08 12:14:09,108 INFO L263 TraceCheckUtils]: 14: Hoare triple {6606#(and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} call #t~ret3 := fibo1(~n - 2); {6398#true} is VALID [2020-07-08 12:14:09,108 INFO L280 TraceCheckUtils]: 15: Hoare triple {6398#true} ~n := #in~n; {6398#true} is VALID [2020-07-08 12:14:09,108 INFO L280 TraceCheckUtils]: 16: Hoare triple {6398#true} assume ~n < 1;#res := 0; {6398#true} is VALID [2020-07-08 12:14:09,108 INFO L280 TraceCheckUtils]: 17: Hoare triple {6398#true} assume true; {6398#true} is VALID [2020-07-08 12:14:09,109 INFO L275 TraceCheckUtils]: 18: Hoare quadruple {6398#true} {6606#(and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} #55#return; {6616#(<= 2 |fibo2_#in~n|)} is VALID [2020-07-08 12:14:09,110 INFO L280 TraceCheckUtils]: 19: Hoare triple {6616#(<= 2 |fibo2_#in~n|)} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647;#res := #t~ret2 + #t~ret3;havoc #t~ret2;havoc #t~ret3; {6616#(<= 2 |fibo2_#in~n|)} is VALID [2020-07-08 12:14:09,111 INFO L280 TraceCheckUtils]: 20: Hoare triple {6616#(<= 2 |fibo2_#in~n|)} assume true; {6616#(<= 2 |fibo2_#in~n|)} is VALID [2020-07-08 12:14:09,112 INFO L275 TraceCheckUtils]: 21: Hoare quadruple {6616#(<= 2 |fibo2_#in~n|)} {6578#(= fibo1_~n |fibo1_#in~n|)} #57#return; {6597#(and (<= 3 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 12:14:09,112 INFO L280 TraceCheckUtils]: 22: Hoare triple {6597#(and (<= 3 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {6597#(and (<= 3 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 12:14:09,113 INFO L263 TraceCheckUtils]: 23: Hoare triple {6597#(and (<= 3 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} call #t~ret1 := fibo2(~n - 2); {6398#true} is VALID [2020-07-08 12:14:09,113 INFO L280 TraceCheckUtils]: 24: Hoare triple {6398#true} ~n := #in~n; {6398#true} is VALID [2020-07-08 12:14:09,113 INFO L280 TraceCheckUtils]: 25: Hoare triple {6398#true} assume !(~n < 1); {6398#true} is VALID [2020-07-08 12:14:09,113 INFO L280 TraceCheckUtils]: 26: Hoare triple {6398#true} assume 1 == ~n;#res := 1; {6398#true} is VALID [2020-07-08 12:14:09,113 INFO L280 TraceCheckUtils]: 27: Hoare triple {6398#true} assume true; {6398#true} is VALID [2020-07-08 12:14:09,114 INFO L275 TraceCheckUtils]: 28: Hoare quadruple {6398#true} {6597#(and (<= 3 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} #59#return; {6603#(<= 3 |fibo1_#in~n|)} is VALID [2020-07-08 12:14:09,115 INFO L280 TraceCheckUtils]: 29: Hoare triple {6603#(<= 3 |fibo1_#in~n|)} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647;#res := #t~ret0 + #t~ret1;havoc #t~ret0;havoc #t~ret1; {6603#(<= 3 |fibo1_#in~n|)} is VALID [2020-07-08 12:14:09,116 INFO L280 TraceCheckUtils]: 30: Hoare triple {6603#(<= 3 |fibo1_#in~n|)} assume true; {6603#(<= 3 |fibo1_#in~n|)} is VALID [2020-07-08 12:14:09,117 INFO L275 TraceCheckUtils]: 31: Hoare quadruple {6603#(<= 3 |fibo1_#in~n|)} {6398#true} #53#return; {6572#(<= 4 fibo2_~n)} is VALID [2020-07-08 12:14:09,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:14:09,136 INFO L280 TraceCheckUtils]: 0: Hoare triple {6398#true} ~n := #in~n; {6578#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 12:14:09,137 INFO L280 TraceCheckUtils]: 1: Hoare triple {6578#(= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {6578#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 12:14:09,137 INFO L280 TraceCheckUtils]: 2: Hoare triple {6578#(= fibo1_~n |fibo1_#in~n|)} assume 1 == ~n;#res := 1; {6617#(<= |fibo1_#in~n| 1)} is VALID [2020-07-08 12:14:09,138 INFO L280 TraceCheckUtils]: 3: Hoare triple {6617#(<= |fibo1_#in~n| 1)} assume true; {6617#(<= |fibo1_#in~n| 1)} is VALID [2020-07-08 12:14:09,139 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {6617#(<= |fibo1_#in~n| 1)} {6572#(<= 4 fibo2_~n)} #55#return; {6399#false} is VALID [2020-07-08 12:14:09,139 INFO L280 TraceCheckUtils]: 0: Hoare triple {6398#true} ~n := #in~n; {6398#true} is VALID [2020-07-08 12:14:09,139 INFO L280 TraceCheckUtils]: 1: Hoare triple {6398#true} assume !(~n < 1); {6398#true} is VALID [2020-07-08 12:14:09,140 INFO L280 TraceCheckUtils]: 2: Hoare triple {6398#true} assume !(1 == ~n); {6398#true} is VALID [2020-07-08 12:14:09,140 INFO L263 TraceCheckUtils]: 3: Hoare triple {6398#true} call #t~ret2 := fibo1(~n - 1); {6398#true} is VALID [2020-07-08 12:14:09,140 INFO L280 TraceCheckUtils]: 4: Hoare triple {6398#true} ~n := #in~n; {6578#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 12:14:09,141 INFO L280 TraceCheckUtils]: 5: Hoare triple {6578#(= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {6578#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 12:14:09,142 INFO L280 TraceCheckUtils]: 6: Hoare triple {6578#(= fibo1_~n |fibo1_#in~n|)} assume !(1 == ~n); {6578#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 12:14:09,142 INFO L263 TraceCheckUtils]: 7: Hoare triple {6578#(= fibo1_~n |fibo1_#in~n|)} call #t~ret0 := fibo2(~n - 1); {6398#true} is VALID [2020-07-08 12:14:09,142 INFO L280 TraceCheckUtils]: 8: Hoare triple {6398#true} ~n := #in~n; {6604#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 12:14:09,143 INFO L280 TraceCheckUtils]: 9: Hoare triple {6604#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {6605#(and (< 0 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} is VALID [2020-07-08 12:14:09,144 INFO L280 TraceCheckUtils]: 10: Hoare triple {6605#(and (< 0 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} assume !(1 == ~n); {6606#(and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} is VALID [2020-07-08 12:14:09,144 INFO L263 TraceCheckUtils]: 11: Hoare triple {6606#(and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} call #t~ret2 := fibo1(~n - 1); {6398#true} is VALID [2020-07-08 12:14:09,144 INFO L280 TraceCheckUtils]: 12: Hoare triple {6398#true} ~n := #in~n; {6398#true} is VALID [2020-07-08 12:14:09,144 INFO L280 TraceCheckUtils]: 13: Hoare triple {6398#true} assume !(~n < 1); {6398#true} is VALID [2020-07-08 12:14:09,145 INFO L280 TraceCheckUtils]: 14: Hoare triple {6398#true} assume 1 == ~n;#res := 1; {6398#true} is VALID [2020-07-08 12:14:09,145 INFO L280 TraceCheckUtils]: 15: Hoare triple {6398#true} assume true; {6398#true} is VALID [2020-07-08 12:14:09,146 INFO L275 TraceCheckUtils]: 16: Hoare quadruple {6398#true} {6606#(and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} #53#return; {6606#(and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} is VALID [2020-07-08 12:14:09,146 INFO L280 TraceCheckUtils]: 17: Hoare triple {6606#(and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {6606#(and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} is VALID [2020-07-08 12:14:09,147 INFO L263 TraceCheckUtils]: 18: Hoare triple {6606#(and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} call #t~ret3 := fibo1(~n - 2); {6398#true} is VALID [2020-07-08 12:14:09,147 INFO L280 TraceCheckUtils]: 19: Hoare triple {6398#true} ~n := #in~n; {6398#true} is VALID [2020-07-08 12:14:09,147 INFO L280 TraceCheckUtils]: 20: Hoare triple {6398#true} assume ~n < 1;#res := 0; {6398#true} is VALID [2020-07-08 12:14:09,147 INFO L280 TraceCheckUtils]: 21: Hoare triple {6398#true} assume true; {6398#true} is VALID [2020-07-08 12:14:09,148 INFO L275 TraceCheckUtils]: 22: Hoare quadruple {6398#true} {6606#(and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} #55#return; {6616#(<= 2 |fibo2_#in~n|)} is VALID [2020-07-08 12:14:09,149 INFO L280 TraceCheckUtils]: 23: Hoare triple {6616#(<= 2 |fibo2_#in~n|)} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647;#res := #t~ret2 + #t~ret3;havoc #t~ret2;havoc #t~ret3; {6616#(<= 2 |fibo2_#in~n|)} is VALID [2020-07-08 12:14:09,149 INFO L280 TraceCheckUtils]: 24: Hoare triple {6616#(<= 2 |fibo2_#in~n|)} assume true; {6616#(<= 2 |fibo2_#in~n|)} is VALID [2020-07-08 12:14:09,151 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {6616#(<= 2 |fibo2_#in~n|)} {6578#(= fibo1_~n |fibo1_#in~n|)} #57#return; {6597#(and (<= 3 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 12:14:09,151 INFO L280 TraceCheckUtils]: 26: Hoare triple {6597#(and (<= 3 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {6597#(and (<= 3 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 12:14:09,151 INFO L263 TraceCheckUtils]: 27: Hoare triple {6597#(and (<= 3 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} call #t~ret1 := fibo2(~n - 2); {6398#true} is VALID [2020-07-08 12:14:09,152 INFO L280 TraceCheckUtils]: 28: Hoare triple {6398#true} ~n := #in~n; {6398#true} is VALID [2020-07-08 12:14:09,152 INFO L280 TraceCheckUtils]: 29: Hoare triple {6398#true} assume !(~n < 1); {6398#true} is VALID [2020-07-08 12:14:09,152 INFO L280 TraceCheckUtils]: 30: Hoare triple {6398#true} assume 1 == ~n;#res := 1; {6398#true} is VALID [2020-07-08 12:14:09,152 INFO L280 TraceCheckUtils]: 31: Hoare triple {6398#true} assume true; {6398#true} is VALID [2020-07-08 12:14:09,153 INFO L275 TraceCheckUtils]: 32: Hoare quadruple {6398#true} {6597#(and (<= 3 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} #59#return; {6603#(<= 3 |fibo1_#in~n|)} is VALID [2020-07-08 12:14:09,154 INFO L280 TraceCheckUtils]: 33: Hoare triple {6603#(<= 3 |fibo1_#in~n|)} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647;#res := #t~ret0 + #t~ret1;havoc #t~ret0;havoc #t~ret1; {6603#(<= 3 |fibo1_#in~n|)} is VALID [2020-07-08 12:14:09,154 INFO L280 TraceCheckUtils]: 34: Hoare triple {6603#(<= 3 |fibo1_#in~n|)} assume true; {6603#(<= 3 |fibo1_#in~n|)} is VALID [2020-07-08 12:14:09,155 INFO L275 TraceCheckUtils]: 35: Hoare quadruple {6603#(<= 3 |fibo1_#in~n|)} {6398#true} #53#return; {6572#(<= 4 fibo2_~n)} is VALID [2020-07-08 12:14:09,156 INFO L280 TraceCheckUtils]: 36: Hoare triple {6572#(<= 4 fibo2_~n)} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {6572#(<= 4 fibo2_~n)} is VALID [2020-07-08 12:14:09,156 INFO L263 TraceCheckUtils]: 37: Hoare triple {6572#(<= 4 fibo2_~n)} call #t~ret3 := fibo1(~n - 2); {6398#true} is VALID [2020-07-08 12:14:09,157 INFO L280 TraceCheckUtils]: 38: Hoare triple {6398#true} ~n := #in~n; {6578#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 12:14:09,157 INFO L280 TraceCheckUtils]: 39: Hoare triple {6578#(= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {6578#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 12:14:09,158 INFO L280 TraceCheckUtils]: 40: Hoare triple {6578#(= fibo1_~n |fibo1_#in~n|)} assume 1 == ~n;#res := 1; {6617#(<= |fibo1_#in~n| 1)} is VALID [2020-07-08 12:14:09,158 INFO L280 TraceCheckUtils]: 41: Hoare triple {6617#(<= |fibo1_#in~n| 1)} assume true; {6617#(<= |fibo1_#in~n| 1)} is VALID [2020-07-08 12:14:09,159 INFO L275 TraceCheckUtils]: 42: Hoare quadruple {6617#(<= |fibo1_#in~n| 1)} {6572#(<= 4 fibo2_~n)} #55#return; {6399#false} is VALID [2020-07-08 12:14:09,159 INFO L280 TraceCheckUtils]: 43: Hoare triple {6399#false} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647;#res := #t~ret2 + #t~ret3;havoc #t~ret2;havoc #t~ret3; {6399#false} is VALID [2020-07-08 12:14:09,160 INFO L280 TraceCheckUtils]: 44: Hoare triple {6399#false} assume true; {6399#false} is VALID [2020-07-08 12:14:09,160 INFO L275 TraceCheckUtils]: 45: Hoare quadruple {6399#false} {6398#true} #57#return; {6399#false} is VALID [2020-07-08 12:14:09,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:14:09,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:14:09,171 INFO L280 TraceCheckUtils]: 0: Hoare triple {6398#true} ~n := #in~n; {6398#true} is VALID [2020-07-08 12:14:09,172 INFO L280 TraceCheckUtils]: 1: Hoare triple {6398#true} assume !(~n < 1); {6398#true} is VALID [2020-07-08 12:14:09,172 INFO L280 TraceCheckUtils]: 2: Hoare triple {6398#true} assume 1 == ~n;#res := 1; {6398#true} is VALID [2020-07-08 12:14:09,172 INFO L280 TraceCheckUtils]: 3: Hoare triple {6398#true} assume true; {6398#true} is VALID [2020-07-08 12:14:09,172 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {6398#true} {6398#true} #53#return; {6398#true} is VALID [2020-07-08 12:14:09,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:14:09,175 INFO L280 TraceCheckUtils]: 0: Hoare triple {6398#true} ~n := #in~n; {6398#true} is VALID [2020-07-08 12:14:09,175 INFO L280 TraceCheckUtils]: 1: Hoare triple {6398#true} assume ~n < 1;#res := 0; {6398#true} is VALID [2020-07-08 12:14:09,176 INFO L280 TraceCheckUtils]: 2: Hoare triple {6398#true} assume true; {6398#true} is VALID [2020-07-08 12:14:09,176 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {6398#true} {6398#true} #55#return; {6398#true} is VALID [2020-07-08 12:14:09,176 INFO L280 TraceCheckUtils]: 0: Hoare triple {6398#true} ~n := #in~n; {6398#true} is VALID [2020-07-08 12:14:09,176 INFO L280 TraceCheckUtils]: 1: Hoare triple {6398#true} assume !(~n < 1); {6398#true} is VALID [2020-07-08 12:14:09,176 INFO L280 TraceCheckUtils]: 2: Hoare triple {6398#true} assume !(1 == ~n); {6398#true} is VALID [2020-07-08 12:14:09,177 INFO L263 TraceCheckUtils]: 3: Hoare triple {6398#true} call #t~ret2 := fibo1(~n - 1); {6398#true} is VALID [2020-07-08 12:14:09,177 INFO L280 TraceCheckUtils]: 4: Hoare triple {6398#true} ~n := #in~n; {6398#true} is VALID [2020-07-08 12:14:09,177 INFO L280 TraceCheckUtils]: 5: Hoare triple {6398#true} assume !(~n < 1); {6398#true} is VALID [2020-07-08 12:14:09,177 INFO L280 TraceCheckUtils]: 6: Hoare triple {6398#true} assume 1 == ~n;#res := 1; {6398#true} is VALID [2020-07-08 12:14:09,178 INFO L280 TraceCheckUtils]: 7: Hoare triple {6398#true} assume true; {6398#true} is VALID [2020-07-08 12:14:09,178 INFO L275 TraceCheckUtils]: 8: Hoare quadruple {6398#true} {6398#true} #53#return; {6398#true} is VALID [2020-07-08 12:14:09,178 INFO L280 TraceCheckUtils]: 9: Hoare triple {6398#true} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {6398#true} is VALID [2020-07-08 12:14:09,178 INFO L263 TraceCheckUtils]: 10: Hoare triple {6398#true} call #t~ret3 := fibo1(~n - 2); {6398#true} is VALID [2020-07-08 12:14:09,178 INFO L280 TraceCheckUtils]: 11: Hoare triple {6398#true} ~n := #in~n; {6398#true} is VALID [2020-07-08 12:14:09,178 INFO L280 TraceCheckUtils]: 12: Hoare triple {6398#true} assume ~n < 1;#res := 0; {6398#true} is VALID [2020-07-08 12:14:09,179 INFO L280 TraceCheckUtils]: 13: Hoare triple {6398#true} assume true; {6398#true} is VALID [2020-07-08 12:14:09,179 INFO L275 TraceCheckUtils]: 14: Hoare quadruple {6398#true} {6398#true} #55#return; {6398#true} is VALID [2020-07-08 12:14:09,179 INFO L280 TraceCheckUtils]: 15: Hoare triple {6398#true} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647;#res := #t~ret2 + #t~ret3;havoc #t~ret2;havoc #t~ret3; {6398#true} is VALID [2020-07-08 12:14:09,179 INFO L280 TraceCheckUtils]: 16: Hoare triple {6398#true} assume true; {6398#true} is VALID [2020-07-08 12:14:09,179 INFO L275 TraceCheckUtils]: 17: Hoare quadruple {6398#true} {6399#false} #59#return; {6399#false} is VALID [2020-07-08 12:14:09,180 INFO L280 TraceCheckUtils]: 0: Hoare triple {6398#true} ~n := #in~n; {6398#true} is VALID [2020-07-08 12:14:09,180 INFO L280 TraceCheckUtils]: 1: Hoare triple {6398#true} assume !(~n < 1); {6398#true} is VALID [2020-07-08 12:14:09,180 INFO L280 TraceCheckUtils]: 2: Hoare triple {6398#true} assume !(1 == ~n); {6398#true} is VALID [2020-07-08 12:14:09,180 INFO L263 TraceCheckUtils]: 3: Hoare triple {6398#true} call #t~ret0 := fibo2(~n - 1); {6398#true} is VALID [2020-07-08 12:14:09,181 INFO L280 TraceCheckUtils]: 4: Hoare triple {6398#true} ~n := #in~n; {6398#true} is VALID [2020-07-08 12:14:09,181 INFO L280 TraceCheckUtils]: 5: Hoare triple {6398#true} assume !(~n < 1); {6398#true} is VALID [2020-07-08 12:14:09,181 INFO L280 TraceCheckUtils]: 6: Hoare triple {6398#true} assume !(1 == ~n); {6398#true} is VALID [2020-07-08 12:14:09,181 INFO L263 TraceCheckUtils]: 7: Hoare triple {6398#true} call #t~ret2 := fibo1(~n - 1); {6398#true} is VALID [2020-07-08 12:14:09,182 INFO L280 TraceCheckUtils]: 8: Hoare triple {6398#true} ~n := #in~n; {6578#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 12:14:09,182 INFO L280 TraceCheckUtils]: 9: Hoare triple {6578#(= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {6578#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 12:14:09,183 INFO L280 TraceCheckUtils]: 10: Hoare triple {6578#(= fibo1_~n |fibo1_#in~n|)} assume !(1 == ~n); {6578#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 12:14:09,183 INFO L263 TraceCheckUtils]: 11: Hoare triple {6578#(= fibo1_~n |fibo1_#in~n|)} call #t~ret0 := fibo2(~n - 1); {6398#true} is VALID [2020-07-08 12:14:09,184 INFO L280 TraceCheckUtils]: 12: Hoare triple {6398#true} ~n := #in~n; {6604#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 12:14:09,185 INFO L280 TraceCheckUtils]: 13: Hoare triple {6604#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {6605#(and (< 0 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} is VALID [2020-07-08 12:14:09,185 INFO L280 TraceCheckUtils]: 14: Hoare triple {6605#(and (< 0 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} assume !(1 == ~n); {6606#(and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} is VALID [2020-07-08 12:14:09,186 INFO L263 TraceCheckUtils]: 15: Hoare triple {6606#(and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} call #t~ret2 := fibo1(~n - 1); {6398#true} is VALID [2020-07-08 12:14:09,186 INFO L280 TraceCheckUtils]: 16: Hoare triple {6398#true} ~n := #in~n; {6398#true} is VALID [2020-07-08 12:14:09,186 INFO L280 TraceCheckUtils]: 17: Hoare triple {6398#true} assume !(~n < 1); {6398#true} is VALID [2020-07-08 12:14:09,186 INFO L280 TraceCheckUtils]: 18: Hoare triple {6398#true} assume 1 == ~n;#res := 1; {6398#true} is VALID [2020-07-08 12:14:09,186 INFO L280 TraceCheckUtils]: 19: Hoare triple {6398#true} assume true; {6398#true} is VALID [2020-07-08 12:14:09,187 INFO L275 TraceCheckUtils]: 20: Hoare quadruple {6398#true} {6606#(and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} #53#return; {6606#(and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} is VALID [2020-07-08 12:14:09,188 INFO L280 TraceCheckUtils]: 21: Hoare triple {6606#(and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {6606#(and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} is VALID [2020-07-08 12:14:09,188 INFO L263 TraceCheckUtils]: 22: Hoare triple {6606#(and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} call #t~ret3 := fibo1(~n - 2); {6398#true} is VALID [2020-07-08 12:14:09,188 INFO L280 TraceCheckUtils]: 23: Hoare triple {6398#true} ~n := #in~n; {6398#true} is VALID [2020-07-08 12:14:09,189 INFO L280 TraceCheckUtils]: 24: Hoare triple {6398#true} assume ~n < 1;#res := 0; {6398#true} is VALID [2020-07-08 12:14:09,189 INFO L280 TraceCheckUtils]: 25: Hoare triple {6398#true} assume true; {6398#true} is VALID [2020-07-08 12:14:09,190 INFO L275 TraceCheckUtils]: 26: Hoare quadruple {6398#true} {6606#(and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} #55#return; {6616#(<= 2 |fibo2_#in~n|)} is VALID [2020-07-08 12:14:09,191 INFO L280 TraceCheckUtils]: 27: Hoare triple {6616#(<= 2 |fibo2_#in~n|)} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647;#res := #t~ret2 + #t~ret3;havoc #t~ret2;havoc #t~ret3; {6616#(<= 2 |fibo2_#in~n|)} is VALID [2020-07-08 12:14:09,191 INFO L280 TraceCheckUtils]: 28: Hoare triple {6616#(<= 2 |fibo2_#in~n|)} assume true; {6616#(<= 2 |fibo2_#in~n|)} is VALID [2020-07-08 12:14:09,192 INFO L275 TraceCheckUtils]: 29: Hoare quadruple {6616#(<= 2 |fibo2_#in~n|)} {6578#(= fibo1_~n |fibo1_#in~n|)} #57#return; {6597#(and (<= 3 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 12:14:09,193 INFO L280 TraceCheckUtils]: 30: Hoare triple {6597#(and (<= 3 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {6597#(and (<= 3 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 12:14:09,193 INFO L263 TraceCheckUtils]: 31: Hoare triple {6597#(and (<= 3 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} call #t~ret1 := fibo2(~n - 2); {6398#true} is VALID [2020-07-08 12:14:09,193 INFO L280 TraceCheckUtils]: 32: Hoare triple {6398#true} ~n := #in~n; {6398#true} is VALID [2020-07-08 12:14:09,194 INFO L280 TraceCheckUtils]: 33: Hoare triple {6398#true} assume !(~n < 1); {6398#true} is VALID [2020-07-08 12:14:09,194 INFO L280 TraceCheckUtils]: 34: Hoare triple {6398#true} assume 1 == ~n;#res := 1; {6398#true} is VALID [2020-07-08 12:14:09,194 INFO L280 TraceCheckUtils]: 35: Hoare triple {6398#true} assume true; {6398#true} is VALID [2020-07-08 12:14:09,195 INFO L275 TraceCheckUtils]: 36: Hoare quadruple {6398#true} {6597#(and (<= 3 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} #59#return; {6603#(<= 3 |fibo1_#in~n|)} is VALID [2020-07-08 12:14:09,196 INFO L280 TraceCheckUtils]: 37: Hoare triple {6603#(<= 3 |fibo1_#in~n|)} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647;#res := #t~ret0 + #t~ret1;havoc #t~ret0;havoc #t~ret1; {6603#(<= 3 |fibo1_#in~n|)} is VALID [2020-07-08 12:14:09,196 INFO L280 TraceCheckUtils]: 38: Hoare triple {6603#(<= 3 |fibo1_#in~n|)} assume true; {6603#(<= 3 |fibo1_#in~n|)} is VALID [2020-07-08 12:14:09,197 INFO L275 TraceCheckUtils]: 39: Hoare quadruple {6603#(<= 3 |fibo1_#in~n|)} {6398#true} #53#return; {6572#(<= 4 fibo2_~n)} is VALID [2020-07-08 12:14:09,198 INFO L280 TraceCheckUtils]: 40: Hoare triple {6572#(<= 4 fibo2_~n)} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {6572#(<= 4 fibo2_~n)} is VALID [2020-07-08 12:14:09,198 INFO L263 TraceCheckUtils]: 41: Hoare triple {6572#(<= 4 fibo2_~n)} call #t~ret3 := fibo1(~n - 2); {6398#true} is VALID [2020-07-08 12:14:09,199 INFO L280 TraceCheckUtils]: 42: Hoare triple {6398#true} ~n := #in~n; {6578#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 12:14:09,199 INFO L280 TraceCheckUtils]: 43: Hoare triple {6578#(= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {6578#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 12:14:09,200 INFO L280 TraceCheckUtils]: 44: Hoare triple {6578#(= fibo1_~n |fibo1_#in~n|)} assume 1 == ~n;#res := 1; {6617#(<= |fibo1_#in~n| 1)} is VALID [2020-07-08 12:14:09,200 INFO L280 TraceCheckUtils]: 45: Hoare triple {6617#(<= |fibo1_#in~n| 1)} assume true; {6617#(<= |fibo1_#in~n| 1)} is VALID [2020-07-08 12:14:09,201 INFO L275 TraceCheckUtils]: 46: Hoare quadruple {6617#(<= |fibo1_#in~n| 1)} {6572#(<= 4 fibo2_~n)} #55#return; {6399#false} is VALID [2020-07-08 12:14:09,202 INFO L280 TraceCheckUtils]: 47: Hoare triple {6399#false} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647;#res := #t~ret2 + #t~ret3;havoc #t~ret2;havoc #t~ret3; {6399#false} is VALID [2020-07-08 12:14:09,202 INFO L280 TraceCheckUtils]: 48: Hoare triple {6399#false} assume true; {6399#false} is VALID [2020-07-08 12:14:09,202 INFO L275 TraceCheckUtils]: 49: Hoare quadruple {6399#false} {6398#true} #57#return; {6399#false} is VALID [2020-07-08 12:14:09,202 INFO L280 TraceCheckUtils]: 50: Hoare triple {6399#false} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {6399#false} is VALID [2020-07-08 12:14:09,202 INFO L263 TraceCheckUtils]: 51: Hoare triple {6399#false} call #t~ret1 := fibo2(~n - 2); {6398#true} is VALID [2020-07-08 12:14:09,203 INFO L280 TraceCheckUtils]: 52: Hoare triple {6398#true} ~n := #in~n; {6398#true} is VALID [2020-07-08 12:14:09,203 INFO L280 TraceCheckUtils]: 53: Hoare triple {6398#true} assume !(~n < 1); {6398#true} is VALID [2020-07-08 12:14:09,203 INFO L280 TraceCheckUtils]: 54: Hoare triple {6398#true} assume !(1 == ~n); {6398#true} is VALID [2020-07-08 12:14:09,203 INFO L263 TraceCheckUtils]: 55: Hoare triple {6398#true} call #t~ret2 := fibo1(~n - 1); {6398#true} is VALID [2020-07-08 12:14:09,203 INFO L280 TraceCheckUtils]: 56: Hoare triple {6398#true} ~n := #in~n; {6398#true} is VALID [2020-07-08 12:14:09,204 INFO L280 TraceCheckUtils]: 57: Hoare triple {6398#true} assume !(~n < 1); {6398#true} is VALID [2020-07-08 12:14:09,204 INFO L280 TraceCheckUtils]: 58: Hoare triple {6398#true} assume 1 == ~n;#res := 1; {6398#true} is VALID [2020-07-08 12:14:09,204 INFO L280 TraceCheckUtils]: 59: Hoare triple {6398#true} assume true; {6398#true} is VALID [2020-07-08 12:14:09,204 INFO L275 TraceCheckUtils]: 60: Hoare quadruple {6398#true} {6398#true} #53#return; {6398#true} is VALID [2020-07-08 12:14:09,204 INFO L280 TraceCheckUtils]: 61: Hoare triple {6398#true} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {6398#true} is VALID [2020-07-08 12:14:09,205 INFO L263 TraceCheckUtils]: 62: Hoare triple {6398#true} call #t~ret3 := fibo1(~n - 2); {6398#true} is VALID [2020-07-08 12:14:09,205 INFO L280 TraceCheckUtils]: 63: Hoare triple {6398#true} ~n := #in~n; {6398#true} is VALID [2020-07-08 12:14:09,205 INFO L280 TraceCheckUtils]: 64: Hoare triple {6398#true} assume ~n < 1;#res := 0; {6398#true} is VALID [2020-07-08 12:14:09,205 INFO L280 TraceCheckUtils]: 65: Hoare triple {6398#true} assume true; {6398#true} is VALID [2020-07-08 12:14:09,205 INFO L275 TraceCheckUtils]: 66: Hoare quadruple {6398#true} {6398#true} #55#return; {6398#true} is VALID [2020-07-08 12:14:09,206 INFO L280 TraceCheckUtils]: 67: Hoare triple {6398#true} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647;#res := #t~ret2 + #t~ret3;havoc #t~ret2;havoc #t~ret3; {6398#true} is VALID [2020-07-08 12:14:09,206 INFO L280 TraceCheckUtils]: 68: Hoare triple {6398#true} assume true; {6398#true} is VALID [2020-07-08 12:14:09,206 INFO L275 TraceCheckUtils]: 69: Hoare quadruple {6398#true} {6399#false} #59#return; {6399#false} is VALID [2020-07-08 12:14:09,206 INFO L280 TraceCheckUtils]: 70: Hoare triple {6399#false} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647;#res := #t~ret0 + #t~ret1;havoc #t~ret0;havoc #t~ret1; {6399#false} is VALID [2020-07-08 12:14:09,207 INFO L280 TraceCheckUtils]: 71: Hoare triple {6399#false} assume true; {6399#false} is VALID [2020-07-08 12:14:09,207 INFO L275 TraceCheckUtils]: 72: Hoare quadruple {6399#false} {6402#(<= main_~x~0 4)} #51#return; {6399#false} is VALID [2020-07-08 12:14:09,211 INFO L263 TraceCheckUtils]: 0: Hoare triple {6398#true} call ULTIMATE.init(); {6398#true} is VALID [2020-07-08 12:14:09,211 INFO L280 TraceCheckUtils]: 1: Hoare triple {6398#true} assume true; {6398#true} is VALID [2020-07-08 12:14:09,211 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {6398#true} {6398#true} #47#return; {6398#true} is VALID [2020-07-08 12:14:09,211 INFO L263 TraceCheckUtils]: 3: Hoare triple {6398#true} call #t~ret5 := main(); {6398#true} is VALID [2020-07-08 12:14:09,212 INFO L280 TraceCheckUtils]: 4: Hoare triple {6398#true} ~x~0 := 4; {6402#(<= main_~x~0 4)} is VALID [2020-07-08 12:14:09,212 INFO L263 TraceCheckUtils]: 5: Hoare triple {6402#(<= main_~x~0 4)} call #t~ret4 := fibo1(~x~0); {6398#true} is VALID [2020-07-08 12:14:09,212 INFO L280 TraceCheckUtils]: 6: Hoare triple {6398#true} ~n := #in~n; {6398#true} is VALID [2020-07-08 12:14:09,213 INFO L280 TraceCheckUtils]: 7: Hoare triple {6398#true} assume !(~n < 1); {6398#true} is VALID [2020-07-08 12:14:09,213 INFO L280 TraceCheckUtils]: 8: Hoare triple {6398#true} assume !(1 == ~n); {6398#true} is VALID [2020-07-08 12:14:09,213 INFO L263 TraceCheckUtils]: 9: Hoare triple {6398#true} call #t~ret0 := fibo2(~n - 1); {6398#true} is VALID [2020-07-08 12:14:09,213 INFO L280 TraceCheckUtils]: 10: Hoare triple {6398#true} ~n := #in~n; {6398#true} is VALID [2020-07-08 12:14:09,213 INFO L280 TraceCheckUtils]: 11: Hoare triple {6398#true} assume !(~n < 1); {6398#true} is VALID [2020-07-08 12:14:09,213 INFO L280 TraceCheckUtils]: 12: Hoare triple {6398#true} assume !(1 == ~n); {6398#true} is VALID [2020-07-08 12:14:09,214 INFO L263 TraceCheckUtils]: 13: Hoare triple {6398#true} call #t~ret2 := fibo1(~n - 1); {6398#true} is VALID [2020-07-08 12:14:09,214 INFO L280 TraceCheckUtils]: 14: Hoare triple {6398#true} ~n := #in~n; {6578#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 12:14:09,215 INFO L280 TraceCheckUtils]: 15: Hoare triple {6578#(= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {6578#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 12:14:09,215 INFO L280 TraceCheckUtils]: 16: Hoare triple {6578#(= fibo1_~n |fibo1_#in~n|)} assume !(1 == ~n); {6578#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 12:14:09,215 INFO L263 TraceCheckUtils]: 17: Hoare triple {6578#(= fibo1_~n |fibo1_#in~n|)} call #t~ret0 := fibo2(~n - 1); {6398#true} is VALID [2020-07-08 12:14:09,216 INFO L280 TraceCheckUtils]: 18: Hoare triple {6398#true} ~n := #in~n; {6604#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 12:14:09,217 INFO L280 TraceCheckUtils]: 19: Hoare triple {6604#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {6605#(and (< 0 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} is VALID [2020-07-08 12:14:09,217 INFO L280 TraceCheckUtils]: 20: Hoare triple {6605#(and (< 0 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} assume !(1 == ~n); {6606#(and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} is VALID [2020-07-08 12:14:09,218 INFO L263 TraceCheckUtils]: 21: Hoare triple {6606#(and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} call #t~ret2 := fibo1(~n - 1); {6398#true} is VALID [2020-07-08 12:14:09,218 INFO L280 TraceCheckUtils]: 22: Hoare triple {6398#true} ~n := #in~n; {6398#true} is VALID [2020-07-08 12:14:09,218 INFO L280 TraceCheckUtils]: 23: Hoare triple {6398#true} assume !(~n < 1); {6398#true} is VALID [2020-07-08 12:14:09,218 INFO L280 TraceCheckUtils]: 24: Hoare triple {6398#true} assume 1 == ~n;#res := 1; {6398#true} is VALID [2020-07-08 12:14:09,218 INFO L280 TraceCheckUtils]: 25: Hoare triple {6398#true} assume true; {6398#true} is VALID [2020-07-08 12:14:09,219 INFO L275 TraceCheckUtils]: 26: Hoare quadruple {6398#true} {6606#(and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} #53#return; {6606#(and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} is VALID [2020-07-08 12:14:09,220 INFO L280 TraceCheckUtils]: 27: Hoare triple {6606#(and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {6606#(and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} is VALID [2020-07-08 12:14:09,220 INFO L263 TraceCheckUtils]: 28: Hoare triple {6606#(and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} call #t~ret3 := fibo1(~n - 2); {6398#true} is VALID [2020-07-08 12:14:09,220 INFO L280 TraceCheckUtils]: 29: Hoare triple {6398#true} ~n := #in~n; {6398#true} is VALID [2020-07-08 12:14:09,221 INFO L280 TraceCheckUtils]: 30: Hoare triple {6398#true} assume ~n < 1;#res := 0; {6398#true} is VALID [2020-07-08 12:14:09,221 INFO L280 TraceCheckUtils]: 31: Hoare triple {6398#true} assume true; {6398#true} is VALID [2020-07-08 12:14:09,222 INFO L275 TraceCheckUtils]: 32: Hoare quadruple {6398#true} {6606#(and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} #55#return; {6616#(<= 2 |fibo2_#in~n|)} is VALID [2020-07-08 12:14:09,223 INFO L280 TraceCheckUtils]: 33: Hoare triple {6616#(<= 2 |fibo2_#in~n|)} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647;#res := #t~ret2 + #t~ret3;havoc #t~ret2;havoc #t~ret3; {6616#(<= 2 |fibo2_#in~n|)} is VALID [2020-07-08 12:14:09,223 INFO L280 TraceCheckUtils]: 34: Hoare triple {6616#(<= 2 |fibo2_#in~n|)} assume true; {6616#(<= 2 |fibo2_#in~n|)} is VALID [2020-07-08 12:14:09,224 INFO L275 TraceCheckUtils]: 35: Hoare quadruple {6616#(<= 2 |fibo2_#in~n|)} {6578#(= fibo1_~n |fibo1_#in~n|)} #57#return; {6597#(and (<= 3 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 12:14:09,225 INFO L280 TraceCheckUtils]: 36: Hoare triple {6597#(and (<= 3 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {6597#(and (<= 3 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 12:14:09,225 INFO L263 TraceCheckUtils]: 37: Hoare triple {6597#(and (<= 3 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} call #t~ret1 := fibo2(~n - 2); {6398#true} is VALID [2020-07-08 12:14:09,226 INFO L280 TraceCheckUtils]: 38: Hoare triple {6398#true} ~n := #in~n; {6398#true} is VALID [2020-07-08 12:14:09,226 INFO L280 TraceCheckUtils]: 39: Hoare triple {6398#true} assume !(~n < 1); {6398#true} is VALID [2020-07-08 12:14:09,226 INFO L280 TraceCheckUtils]: 40: Hoare triple {6398#true} assume 1 == ~n;#res := 1; {6398#true} is VALID [2020-07-08 12:14:09,226 INFO L280 TraceCheckUtils]: 41: Hoare triple {6398#true} assume true; {6398#true} is VALID [2020-07-08 12:14:09,227 INFO L275 TraceCheckUtils]: 42: Hoare quadruple {6398#true} {6597#(and (<= 3 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} #59#return; {6603#(<= 3 |fibo1_#in~n|)} is VALID [2020-07-08 12:14:09,228 INFO L280 TraceCheckUtils]: 43: Hoare triple {6603#(<= 3 |fibo1_#in~n|)} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647;#res := #t~ret0 + #t~ret1;havoc #t~ret0;havoc #t~ret1; {6603#(<= 3 |fibo1_#in~n|)} is VALID [2020-07-08 12:14:09,228 INFO L280 TraceCheckUtils]: 44: Hoare triple {6603#(<= 3 |fibo1_#in~n|)} assume true; {6603#(<= 3 |fibo1_#in~n|)} is VALID [2020-07-08 12:14:09,229 INFO L275 TraceCheckUtils]: 45: Hoare quadruple {6603#(<= 3 |fibo1_#in~n|)} {6398#true} #53#return; {6572#(<= 4 fibo2_~n)} is VALID [2020-07-08 12:14:09,230 INFO L280 TraceCheckUtils]: 46: Hoare triple {6572#(<= 4 fibo2_~n)} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {6572#(<= 4 fibo2_~n)} is VALID [2020-07-08 12:14:09,230 INFO L263 TraceCheckUtils]: 47: Hoare triple {6572#(<= 4 fibo2_~n)} call #t~ret3 := fibo1(~n - 2); {6398#true} is VALID [2020-07-08 12:14:09,231 INFO L280 TraceCheckUtils]: 48: Hoare triple {6398#true} ~n := #in~n; {6578#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 12:14:09,231 INFO L280 TraceCheckUtils]: 49: Hoare triple {6578#(= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {6578#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 12:14:09,232 INFO L280 TraceCheckUtils]: 50: Hoare triple {6578#(= fibo1_~n |fibo1_#in~n|)} assume 1 == ~n;#res := 1; {6617#(<= |fibo1_#in~n| 1)} is VALID [2020-07-08 12:14:09,232 INFO L280 TraceCheckUtils]: 51: Hoare triple {6617#(<= |fibo1_#in~n| 1)} assume true; {6617#(<= |fibo1_#in~n| 1)} is VALID [2020-07-08 12:14:09,233 INFO L275 TraceCheckUtils]: 52: Hoare quadruple {6617#(<= |fibo1_#in~n| 1)} {6572#(<= 4 fibo2_~n)} #55#return; {6399#false} is VALID [2020-07-08 12:14:09,234 INFO L280 TraceCheckUtils]: 53: Hoare triple {6399#false} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647;#res := #t~ret2 + #t~ret3;havoc #t~ret2;havoc #t~ret3; {6399#false} is VALID [2020-07-08 12:14:09,234 INFO L280 TraceCheckUtils]: 54: Hoare triple {6399#false} assume true; {6399#false} is VALID [2020-07-08 12:14:09,234 INFO L275 TraceCheckUtils]: 55: Hoare quadruple {6399#false} {6398#true} #57#return; {6399#false} is VALID [2020-07-08 12:14:09,234 INFO L280 TraceCheckUtils]: 56: Hoare triple {6399#false} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {6399#false} is VALID [2020-07-08 12:14:09,234 INFO L263 TraceCheckUtils]: 57: Hoare triple {6399#false} call #t~ret1 := fibo2(~n - 2); {6398#true} is VALID [2020-07-08 12:14:09,234 INFO L280 TraceCheckUtils]: 58: Hoare triple {6398#true} ~n := #in~n; {6398#true} is VALID [2020-07-08 12:14:09,235 INFO L280 TraceCheckUtils]: 59: Hoare triple {6398#true} assume !(~n < 1); {6398#true} is VALID [2020-07-08 12:14:09,235 INFO L280 TraceCheckUtils]: 60: Hoare triple {6398#true} assume !(1 == ~n); {6398#true} is VALID [2020-07-08 12:14:09,235 INFO L263 TraceCheckUtils]: 61: Hoare triple {6398#true} call #t~ret2 := fibo1(~n - 1); {6398#true} is VALID [2020-07-08 12:14:09,235 INFO L280 TraceCheckUtils]: 62: Hoare triple {6398#true} ~n := #in~n; {6398#true} is VALID [2020-07-08 12:14:09,235 INFO L280 TraceCheckUtils]: 63: Hoare triple {6398#true} assume !(~n < 1); {6398#true} is VALID [2020-07-08 12:14:09,235 INFO L280 TraceCheckUtils]: 64: Hoare triple {6398#true} assume 1 == ~n;#res := 1; {6398#true} is VALID [2020-07-08 12:14:09,236 INFO L280 TraceCheckUtils]: 65: Hoare triple {6398#true} assume true; {6398#true} is VALID [2020-07-08 12:14:09,236 INFO L275 TraceCheckUtils]: 66: Hoare quadruple {6398#true} {6398#true} #53#return; {6398#true} is VALID [2020-07-08 12:14:09,236 INFO L280 TraceCheckUtils]: 67: Hoare triple {6398#true} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {6398#true} is VALID [2020-07-08 12:14:09,236 INFO L263 TraceCheckUtils]: 68: Hoare triple {6398#true} call #t~ret3 := fibo1(~n - 2); {6398#true} is VALID [2020-07-08 12:14:09,236 INFO L280 TraceCheckUtils]: 69: Hoare triple {6398#true} ~n := #in~n; {6398#true} is VALID [2020-07-08 12:14:09,236 INFO L280 TraceCheckUtils]: 70: Hoare triple {6398#true} assume ~n < 1;#res := 0; {6398#true} is VALID [2020-07-08 12:14:09,237 INFO L280 TraceCheckUtils]: 71: Hoare triple {6398#true} assume true; {6398#true} is VALID [2020-07-08 12:14:09,237 INFO L275 TraceCheckUtils]: 72: Hoare quadruple {6398#true} {6398#true} #55#return; {6398#true} is VALID [2020-07-08 12:14:09,237 INFO L280 TraceCheckUtils]: 73: Hoare triple {6398#true} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647;#res := #t~ret2 + #t~ret3;havoc #t~ret2;havoc #t~ret3; {6398#true} is VALID [2020-07-08 12:14:09,237 INFO L280 TraceCheckUtils]: 74: Hoare triple {6398#true} assume true; {6398#true} is VALID [2020-07-08 12:14:09,237 INFO L275 TraceCheckUtils]: 75: Hoare quadruple {6398#true} {6399#false} #59#return; {6399#false} is VALID [2020-07-08 12:14:09,237 INFO L280 TraceCheckUtils]: 76: Hoare triple {6399#false} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647;#res := #t~ret0 + #t~ret1;havoc #t~ret0;havoc #t~ret1; {6399#false} is VALID [2020-07-08 12:14:09,238 INFO L280 TraceCheckUtils]: 77: Hoare triple {6399#false} assume true; {6399#false} is VALID [2020-07-08 12:14:09,238 INFO L275 TraceCheckUtils]: 78: Hoare quadruple {6399#false} {6402#(<= main_~x~0 4)} #51#return; {6399#false} is VALID [2020-07-08 12:14:09,238 INFO L280 TraceCheckUtils]: 79: Hoare triple {6399#false} assume -2147483648 <= #t~ret4 && #t~ret4 <= 2147483647;~result~0 := #t~ret4;havoc #t~ret4; {6399#false} is VALID [2020-07-08 12:14:09,238 INFO L280 TraceCheckUtils]: 80: Hoare triple {6399#false} assume 3 != ~result~0; {6399#false} is VALID [2020-07-08 12:14:09,238 INFO L280 TraceCheckUtils]: 81: Hoare triple {6399#false} assume !false; {6399#false} is VALID [2020-07-08 12:14:09,243 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 39 proven. 38 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2020-07-08 12:14:09,243 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747701482] [2020-07-08 12:14:09,243 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1919672038] [2020-07-08 12:14:09,244 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 [2020-07-08 12:14:09,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:14:09,302 INFO L264 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 12 conjunts are in the unsatisfiable core [2020-07-08 12:14:09,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:14:09,319 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-08 12:14:09,607 INFO L263 TraceCheckUtils]: 0: Hoare triple {6398#true} call ULTIMATE.init(); {6398#true} is VALID [2020-07-08 12:14:09,608 INFO L280 TraceCheckUtils]: 1: Hoare triple {6398#true} assume true; {6398#true} is VALID [2020-07-08 12:14:09,608 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {6398#true} {6398#true} #47#return; {6398#true} is VALID [2020-07-08 12:14:09,608 INFO L263 TraceCheckUtils]: 3: Hoare triple {6398#true} call #t~ret5 := main(); {6398#true} is VALID [2020-07-08 12:14:09,609 INFO L280 TraceCheckUtils]: 4: Hoare triple {6398#true} ~x~0 := 4; {6402#(<= main_~x~0 4)} is VALID [2020-07-08 12:14:09,610 INFO L263 TraceCheckUtils]: 5: Hoare triple {6402#(<= main_~x~0 4)} call #t~ret4 := fibo1(~x~0); {6398#true} is VALID [2020-07-08 12:14:09,612 INFO L280 TraceCheckUtils]: 6: Hoare triple {6398#true} ~n := #in~n; {6648#(<= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 12:14:09,613 INFO L280 TraceCheckUtils]: 7: Hoare triple {6648#(<= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {6648#(<= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 12:14:09,613 INFO L280 TraceCheckUtils]: 8: Hoare triple {6648#(<= fibo1_~n |fibo1_#in~n|)} assume !(1 == ~n); {6648#(<= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 12:14:09,614 INFO L263 TraceCheckUtils]: 9: Hoare triple {6648#(<= fibo1_~n |fibo1_#in~n|)} call #t~ret0 := fibo2(~n - 1); {6398#true} is VALID [2020-07-08 12:14:09,614 INFO L280 TraceCheckUtils]: 10: Hoare triple {6398#true} ~n := #in~n; {6661#(<= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 12:14:09,615 INFO L280 TraceCheckUtils]: 11: Hoare triple {6661#(<= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {6661#(<= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 12:14:09,616 INFO L280 TraceCheckUtils]: 12: Hoare triple {6661#(<= fibo2_~n |fibo2_#in~n|)} assume !(1 == ~n); {6661#(<= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 12:14:09,616 INFO L263 TraceCheckUtils]: 13: Hoare triple {6661#(<= fibo2_~n |fibo2_#in~n|)} call #t~ret2 := fibo1(~n - 1); {6398#true} is VALID [2020-07-08 12:14:09,617 INFO L280 TraceCheckUtils]: 14: Hoare triple {6398#true} ~n := #in~n; {6648#(<= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 12:14:09,618 INFO L280 TraceCheckUtils]: 15: Hoare triple {6648#(<= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {6648#(<= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 12:14:09,619 INFO L280 TraceCheckUtils]: 16: Hoare triple {6648#(<= fibo1_~n |fibo1_#in~n|)} assume !(1 == ~n); {6648#(<= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 12:14:09,619 INFO L263 TraceCheckUtils]: 17: Hoare triple {6648#(<= fibo1_~n |fibo1_#in~n|)} call #t~ret0 := fibo2(~n - 1); {6398#true} is VALID [2020-07-08 12:14:09,619 INFO L280 TraceCheckUtils]: 18: Hoare triple {6398#true} ~n := #in~n; {6661#(<= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 12:14:09,620 INFO L280 TraceCheckUtils]: 19: Hoare triple {6661#(<= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {6661#(<= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 12:14:09,620 INFO L280 TraceCheckUtils]: 20: Hoare triple {6661#(<= fibo2_~n |fibo2_#in~n|)} assume !(1 == ~n); {6661#(<= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 12:14:09,621 INFO L263 TraceCheckUtils]: 21: Hoare triple {6661#(<= fibo2_~n |fibo2_#in~n|)} call #t~ret2 := fibo1(~n - 1); {6398#true} is VALID [2020-07-08 12:14:09,621 INFO L280 TraceCheckUtils]: 22: Hoare triple {6398#true} ~n := #in~n; {6648#(<= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 12:14:09,622 INFO L280 TraceCheckUtils]: 23: Hoare triple {6648#(<= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {6701#(<= 1 |fibo1_#in~n|)} is VALID [2020-07-08 12:14:09,623 INFO L280 TraceCheckUtils]: 24: Hoare triple {6701#(<= 1 |fibo1_#in~n|)} assume 1 == ~n;#res := 1; {6701#(<= 1 |fibo1_#in~n|)} is VALID [2020-07-08 12:14:09,623 INFO L280 TraceCheckUtils]: 25: Hoare triple {6701#(<= 1 |fibo1_#in~n|)} assume true; {6701#(<= 1 |fibo1_#in~n|)} is VALID [2020-07-08 12:14:09,624 INFO L275 TraceCheckUtils]: 26: Hoare quadruple {6701#(<= 1 |fibo1_#in~n|)} {6661#(<= fibo2_~n |fibo2_#in~n|)} #53#return; {6616#(<= 2 |fibo2_#in~n|)} is VALID [2020-07-08 12:14:09,625 INFO L280 TraceCheckUtils]: 27: Hoare triple {6616#(<= 2 |fibo2_#in~n|)} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {6616#(<= 2 |fibo2_#in~n|)} is VALID [2020-07-08 12:14:09,625 INFO L263 TraceCheckUtils]: 28: Hoare triple {6616#(<= 2 |fibo2_#in~n|)} call #t~ret3 := fibo1(~n - 2); {6398#true} is VALID [2020-07-08 12:14:09,625 INFO L280 TraceCheckUtils]: 29: Hoare triple {6398#true} ~n := #in~n; {6398#true} is VALID [2020-07-08 12:14:09,626 INFO L280 TraceCheckUtils]: 30: Hoare triple {6398#true} assume ~n < 1;#res := 0; {6398#true} is VALID [2020-07-08 12:14:09,626 INFO L280 TraceCheckUtils]: 31: Hoare triple {6398#true} assume true; {6398#true} is VALID [2020-07-08 12:14:09,627 INFO L275 TraceCheckUtils]: 32: Hoare quadruple {6398#true} {6616#(<= 2 |fibo2_#in~n|)} #55#return; {6616#(<= 2 |fibo2_#in~n|)} is VALID [2020-07-08 12:14:09,627 INFO L280 TraceCheckUtils]: 33: Hoare triple {6616#(<= 2 |fibo2_#in~n|)} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647;#res := #t~ret2 + #t~ret3;havoc #t~ret2;havoc #t~ret3; {6616#(<= 2 |fibo2_#in~n|)} is VALID [2020-07-08 12:14:09,628 INFO L280 TraceCheckUtils]: 34: Hoare triple {6616#(<= 2 |fibo2_#in~n|)} assume true; {6616#(<= 2 |fibo2_#in~n|)} is VALID [2020-07-08 12:14:09,629 INFO L275 TraceCheckUtils]: 35: Hoare quadruple {6616#(<= 2 |fibo2_#in~n|)} {6648#(<= fibo1_~n |fibo1_#in~n|)} #57#return; {6603#(<= 3 |fibo1_#in~n|)} is VALID [2020-07-08 12:14:09,629 INFO L280 TraceCheckUtils]: 36: Hoare triple {6603#(<= 3 |fibo1_#in~n|)} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {6603#(<= 3 |fibo1_#in~n|)} is VALID [2020-07-08 12:14:09,629 INFO L263 TraceCheckUtils]: 37: Hoare triple {6603#(<= 3 |fibo1_#in~n|)} call #t~ret1 := fibo2(~n - 2); {6398#true} is VALID [2020-07-08 12:14:09,630 INFO L280 TraceCheckUtils]: 38: Hoare triple {6398#true} ~n := #in~n; {6398#true} is VALID [2020-07-08 12:14:09,630 INFO L280 TraceCheckUtils]: 39: Hoare triple {6398#true} assume !(~n < 1); {6398#true} is VALID [2020-07-08 12:14:09,630 INFO L280 TraceCheckUtils]: 40: Hoare triple {6398#true} assume 1 == ~n;#res := 1; {6398#true} is VALID [2020-07-08 12:14:09,630 INFO L280 TraceCheckUtils]: 41: Hoare triple {6398#true} assume true; {6398#true} is VALID [2020-07-08 12:14:09,631 INFO L275 TraceCheckUtils]: 42: Hoare quadruple {6398#true} {6603#(<= 3 |fibo1_#in~n|)} #59#return; {6603#(<= 3 |fibo1_#in~n|)} is VALID [2020-07-08 12:14:09,631 INFO L280 TraceCheckUtils]: 43: Hoare triple {6603#(<= 3 |fibo1_#in~n|)} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647;#res := #t~ret0 + #t~ret1;havoc #t~ret0;havoc #t~ret1; {6603#(<= 3 |fibo1_#in~n|)} is VALID [2020-07-08 12:14:09,632 INFO L280 TraceCheckUtils]: 44: Hoare triple {6603#(<= 3 |fibo1_#in~n|)} assume true; {6603#(<= 3 |fibo1_#in~n|)} is VALID [2020-07-08 12:14:09,633 INFO L275 TraceCheckUtils]: 45: Hoare quadruple {6603#(<= 3 |fibo1_#in~n|)} {6661#(<= fibo2_~n |fibo2_#in~n|)} #53#return; {6768#(<= 4 |fibo2_#in~n|)} is VALID [2020-07-08 12:14:09,634 INFO L280 TraceCheckUtils]: 46: Hoare triple {6768#(<= 4 |fibo2_#in~n|)} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {6768#(<= 4 |fibo2_#in~n|)} is VALID [2020-07-08 12:14:09,634 INFO L263 TraceCheckUtils]: 47: Hoare triple {6768#(<= 4 |fibo2_#in~n|)} call #t~ret3 := fibo1(~n - 2); {6398#true} is VALID [2020-07-08 12:14:09,634 INFO L280 TraceCheckUtils]: 48: Hoare triple {6398#true} ~n := #in~n; {6398#true} is VALID [2020-07-08 12:14:09,634 INFO L280 TraceCheckUtils]: 49: Hoare triple {6398#true} assume !(~n < 1); {6398#true} is VALID [2020-07-08 12:14:09,634 INFO L280 TraceCheckUtils]: 50: Hoare triple {6398#true} assume 1 == ~n;#res := 1; {6398#true} is VALID [2020-07-08 12:14:09,634 INFO L280 TraceCheckUtils]: 51: Hoare triple {6398#true} assume true; {6398#true} is VALID [2020-07-08 12:14:09,635 INFO L275 TraceCheckUtils]: 52: Hoare quadruple {6398#true} {6768#(<= 4 |fibo2_#in~n|)} #55#return; {6768#(<= 4 |fibo2_#in~n|)} is VALID [2020-07-08 12:14:09,636 INFO L280 TraceCheckUtils]: 53: Hoare triple {6768#(<= 4 |fibo2_#in~n|)} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647;#res := #t~ret2 + #t~ret3;havoc #t~ret2;havoc #t~ret3; {6768#(<= 4 |fibo2_#in~n|)} is VALID [2020-07-08 12:14:09,636 INFO L280 TraceCheckUtils]: 54: Hoare triple {6768#(<= 4 |fibo2_#in~n|)} assume true; {6768#(<= 4 |fibo2_#in~n|)} is VALID [2020-07-08 12:14:09,637 INFO L275 TraceCheckUtils]: 55: Hoare quadruple {6768#(<= 4 |fibo2_#in~n|)} {6648#(<= fibo1_~n |fibo1_#in~n|)} #57#return; {6799#(<= 5 |fibo1_#in~n|)} is VALID [2020-07-08 12:14:09,638 INFO L280 TraceCheckUtils]: 56: Hoare triple {6799#(<= 5 |fibo1_#in~n|)} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {6799#(<= 5 |fibo1_#in~n|)} is VALID [2020-07-08 12:14:09,638 INFO L263 TraceCheckUtils]: 57: Hoare triple {6799#(<= 5 |fibo1_#in~n|)} call #t~ret1 := fibo2(~n - 2); {6398#true} is VALID [2020-07-08 12:14:09,638 INFO L280 TraceCheckUtils]: 58: Hoare triple {6398#true} ~n := #in~n; {6398#true} is VALID [2020-07-08 12:14:09,639 INFO L280 TraceCheckUtils]: 59: Hoare triple {6398#true} assume !(~n < 1); {6398#true} is VALID [2020-07-08 12:14:09,639 INFO L280 TraceCheckUtils]: 60: Hoare triple {6398#true} assume !(1 == ~n); {6398#true} is VALID [2020-07-08 12:14:09,639 INFO L263 TraceCheckUtils]: 61: Hoare triple {6398#true} call #t~ret2 := fibo1(~n - 1); {6398#true} is VALID [2020-07-08 12:14:09,639 INFO L280 TraceCheckUtils]: 62: Hoare triple {6398#true} ~n := #in~n; {6398#true} is VALID [2020-07-08 12:14:09,639 INFO L280 TraceCheckUtils]: 63: Hoare triple {6398#true} assume !(~n < 1); {6398#true} is VALID [2020-07-08 12:14:09,640 INFO L280 TraceCheckUtils]: 64: Hoare triple {6398#true} assume 1 == ~n;#res := 1; {6398#true} is VALID [2020-07-08 12:14:09,640 INFO L280 TraceCheckUtils]: 65: Hoare triple {6398#true} assume true; {6398#true} is VALID [2020-07-08 12:14:09,640 INFO L275 TraceCheckUtils]: 66: Hoare quadruple {6398#true} {6398#true} #53#return; {6398#true} is VALID [2020-07-08 12:14:09,640 INFO L280 TraceCheckUtils]: 67: Hoare triple {6398#true} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {6398#true} is VALID [2020-07-08 12:14:09,640 INFO L263 TraceCheckUtils]: 68: Hoare triple {6398#true} call #t~ret3 := fibo1(~n - 2); {6398#true} is VALID [2020-07-08 12:14:09,641 INFO L280 TraceCheckUtils]: 69: Hoare triple {6398#true} ~n := #in~n; {6398#true} is VALID [2020-07-08 12:14:09,641 INFO L280 TraceCheckUtils]: 70: Hoare triple {6398#true} assume ~n < 1;#res := 0; {6398#true} is VALID [2020-07-08 12:14:09,641 INFO L280 TraceCheckUtils]: 71: Hoare triple {6398#true} assume true; {6398#true} is VALID [2020-07-08 12:14:09,641 INFO L275 TraceCheckUtils]: 72: Hoare quadruple {6398#true} {6398#true} #55#return; {6398#true} is VALID [2020-07-08 12:14:09,641 INFO L280 TraceCheckUtils]: 73: Hoare triple {6398#true} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647;#res := #t~ret2 + #t~ret3;havoc #t~ret2;havoc #t~ret3; {6398#true} is VALID [2020-07-08 12:14:09,642 INFO L280 TraceCheckUtils]: 74: Hoare triple {6398#true} assume true; {6398#true} is VALID [2020-07-08 12:14:09,643 INFO L275 TraceCheckUtils]: 75: Hoare quadruple {6398#true} {6799#(<= 5 |fibo1_#in~n|)} #59#return; {6799#(<= 5 |fibo1_#in~n|)} is VALID [2020-07-08 12:14:09,643 INFO L280 TraceCheckUtils]: 76: Hoare triple {6799#(<= 5 |fibo1_#in~n|)} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647;#res := #t~ret0 + #t~ret1;havoc #t~ret0;havoc #t~ret1; {6799#(<= 5 |fibo1_#in~n|)} is VALID [2020-07-08 12:14:09,644 INFO L280 TraceCheckUtils]: 77: Hoare triple {6799#(<= 5 |fibo1_#in~n|)} assume true; {6799#(<= 5 |fibo1_#in~n|)} is VALID [2020-07-08 12:14:09,645 INFO L275 TraceCheckUtils]: 78: Hoare quadruple {6799#(<= 5 |fibo1_#in~n|)} {6402#(<= main_~x~0 4)} #51#return; {6399#false} is VALID [2020-07-08 12:14:09,645 INFO L280 TraceCheckUtils]: 79: Hoare triple {6399#false} assume -2147483648 <= #t~ret4 && #t~ret4 <= 2147483647;~result~0 := #t~ret4;havoc #t~ret4; {6399#false} is VALID [2020-07-08 12:14:09,645 INFO L280 TraceCheckUtils]: 80: Hoare triple {6399#false} assume 3 != ~result~0; {6399#false} is VALID [2020-07-08 12:14:09,645 INFO L280 TraceCheckUtils]: 81: Hoare triple {6399#false} assume !false; {6399#false} is VALID [2020-07-08 12:14:09,652 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 26 proven. 56 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2020-07-08 12:14:09,652 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-08 12:14:09,653 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10] total 17 [2020-07-08 12:14:09,653 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763801073] [2020-07-08 12:14:09,654 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 82 [2020-07-08 12:14:09,659 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 12:14:09,659 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 17 states. [2020-07-08 12:14:09,760 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 94 edges. 94 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 12:14:09,760 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-07-08 12:14:09,761 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-08 12:14:09,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-07-08 12:14:09,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2020-07-08 12:14:09,761 INFO L87 Difference]: Start difference. First operand 78 states and 102 transitions. Second operand 17 states. [2020-07-08 12:14:10,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 12:14:10,899 INFO L93 Difference]: Finished difference Result 149 states and 207 transitions. [2020-07-08 12:14:10,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-07-08 12:14:10,900 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 82 [2020-07-08 12:14:10,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 12:14:10,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-07-08 12:14:10,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 101 transitions. [2020-07-08 12:14:10,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-07-08 12:14:10,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 101 transitions. [2020-07-08 12:14:10,904 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 15 states and 101 transitions. [2020-07-08 12:14:11,040 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 101 edges. 101 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 12:14:11,040 INFO L225 Difference]: With dead ends: 149 [2020-07-08 12:14:11,040 INFO L226 Difference]: Without dead ends: 0 [2020-07-08 12:14:11,042 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=84, Invalid=378, Unknown=0, NotChecked=0, Total=462 [2020-07-08 12:14:11,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-08 12:14:11,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-08 12:14:11,043 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 12:14:11,043 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2020-07-08 12:14:11,043 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-08 12:14:11,043 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-08 12:14:11,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 12:14:11,044 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-08 12:14:11,044 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-08 12:14:11,044 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 12:14:11,044 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 12:14:11,044 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-08 12:14:11,044 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-08 12:14:11,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 12:14:11,044 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-08 12:14:11,044 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-08 12:14:11,045 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 12:14:11,045 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 12:14:11,045 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 12:14:11,045 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 12:14:11,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-08 12:14:11,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-08 12:14:11,045 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 82 [2020-07-08 12:14:11,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 12:14:11,045 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-08 12:14:11,045 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-07-08 12:14:11,046 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-08 12:14:11,046 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 12:14:11,249 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-08 12:14:11,252 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-08 12:14:11,866 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 14 [2020-07-08 12:14:12,165 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 25 [2020-07-08 12:14:12,172 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-07-08 12:14:12,172 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-08 12:14:12,173 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-08 12:14:12,173 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-08 12:14:12,173 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-08 12:14:12,173 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-08 12:14:12,173 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 39) no Hoare annotation was computed. [2020-07-08 12:14:12,173 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 35 42) the Hoare annotation is: true [2020-07-08 12:14:12,174 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 35 42) no Hoare annotation was computed. [2020-07-08 12:14:12,174 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 35 42) no Hoare annotation was computed. [2020-07-08 12:14:12,174 INFO L268 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-07-08 12:14:12,174 INFO L268 CegarLoopResult]: For program point L38(lines 38 40) no Hoare annotation was computed. [2020-07-08 12:14:12,175 INFO L264 CegarLoopResult]: At program point L37(line 37) the Hoare annotation is: (and (<= 4 main_~x~0) (<= main_~x~0 4)) [2020-07-08 12:14:12,175 INFO L268 CegarLoopResult]: For program point L37-1(line 37) no Hoare annotation was computed. [2020-07-08 12:14:12,175 INFO L268 CegarLoopResult]: For program point L38-2(lines 38 40) no Hoare annotation was computed. [2020-07-08 12:14:12,175 INFO L271 CegarLoopResult]: At program point fibo2ENTRY(lines 17 25) the Hoare annotation is: true [2020-07-08 12:14:12,175 INFO L264 CegarLoopResult]: At program point L23(line 23) the Hoare annotation is: (and (= fibo2_~n |fibo2_#in~n|) (< 1 fibo2_~n)) [2020-07-08 12:14:12,175 INFO L268 CegarLoopResult]: For program point L23-1(line 23) no Hoare annotation was computed. [2020-07-08 12:14:12,175 INFO L264 CegarLoopResult]: At program point L23-2(line 23) the Hoare annotation is: (and (let ((.cse0 (= fibo2_~n |fibo2_#in~n|))) (or (and .cse0 (<= 4 fibo2_~n)) (and (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|) .cse0))) (< 1 fibo2_~n)) [2020-07-08 12:14:12,175 INFO L268 CegarLoopResult]: For program point L20(lines 20 24) no Hoare annotation was computed. [2020-07-08 12:14:12,176 INFO L268 CegarLoopResult]: For program point L23-3(line 23) no Hoare annotation was computed. [2020-07-08 12:14:12,176 INFO L268 CegarLoopResult]: For program point L18(lines 18 24) no Hoare annotation was computed. [2020-07-08 12:14:12,176 INFO L268 CegarLoopResult]: For program point fibo2FINAL(lines 17 25) no Hoare annotation was computed. [2020-07-08 12:14:12,176 INFO L268 CegarLoopResult]: For program point fibo2EXIT(lines 17 25) no Hoare annotation was computed. [2020-07-08 12:14:12,176 INFO L271 CegarLoopResult]: At program point fibo1ENTRY(lines 7 15) the Hoare annotation is: true [2020-07-08 12:14:12,176 INFO L264 CegarLoopResult]: At program point L13(line 13) the Hoare annotation is: (and (not (<= |fibo1_#in~n| 2)) (= fibo1_~n |fibo1_#in~n|)) [2020-07-08 12:14:12,176 INFO L268 CegarLoopResult]: For program point L13-1(line 13) no Hoare annotation was computed. [2020-07-08 12:14:12,176 INFO L264 CegarLoopResult]: At program point L13-2(line 13) the Hoare annotation is: (let ((.cse2 (= fibo1_~n |fibo1_#in~n|))) (let ((.cse0 (and (<= |fibo1_#t~ret0| 2) (<= 4 fibo1_~n) (<= 2 |fibo1_#t~ret0|) .cse2)) (.cse1 (and (<= 5 |fibo1_#in~n|) .cse2))) (and (not (<= |fibo1_#in~n| 2)) (or .cse0 .cse1 (and (<= 1 |fibo1_#t~ret0|) (<= |fibo1_#t~ret0| 1))) (or .cse0 .cse1 (and .cse2 (<= |fibo1_#in~n| 3)))))) [2020-07-08 12:14:12,176 INFO L268 CegarLoopResult]: For program point fibo1FINAL(lines 7 15) no Hoare annotation was computed. [2020-07-08 12:14:12,176 INFO L268 CegarLoopResult]: For program point L10(lines 10 14) no Hoare annotation was computed. [2020-07-08 12:14:12,177 INFO L268 CegarLoopResult]: For program point L13-3(line 13) no Hoare annotation was computed. [2020-07-08 12:14:12,177 INFO L268 CegarLoopResult]: For program point L8(lines 8 14) no Hoare annotation was computed. [2020-07-08 12:14:12,177 INFO L268 CegarLoopResult]: For program point fibo1EXIT(lines 7 15) no Hoare annotation was computed. [2020-07-08 12:14:12,180 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-08 12:14:12,181 WARN L170 areAnnotationChecker]: L18 has no Hoare annotation [2020-07-08 12:14:12,181 WARN L170 areAnnotationChecker]: L8 has no Hoare annotation [2020-07-08 12:14:12,181 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-08 12:14:12,181 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-08 12:14:12,181 WARN L170 areAnnotationChecker]: L37-1 has no Hoare annotation [2020-07-08 12:14:12,181 WARN L170 areAnnotationChecker]: L18 has no Hoare annotation [2020-07-08 12:14:12,181 WARN L170 areAnnotationChecker]: L18 has no Hoare annotation [2020-07-08 12:14:12,181 WARN L170 areAnnotationChecker]: L8 has no Hoare annotation [2020-07-08 12:14:12,181 WARN L170 areAnnotationChecker]: L8 has no Hoare annotation [2020-07-08 12:14:12,182 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-08 12:14:12,182 WARN L170 areAnnotationChecker]: L37-1 has no Hoare annotation [2020-07-08 12:14:12,182 WARN L170 areAnnotationChecker]: fibo2FINAL has no Hoare annotation [2020-07-08 12:14:12,182 WARN L170 areAnnotationChecker]: L20 has no Hoare annotation [2020-07-08 12:14:12,182 WARN L170 areAnnotationChecker]: L20 has no Hoare annotation [2020-07-08 12:14:12,182 WARN L170 areAnnotationChecker]: fibo1FINAL has no Hoare annotation [2020-07-08 12:14:12,182 WARN L170 areAnnotationChecker]: L10 has no Hoare annotation [2020-07-08 12:14:12,182 WARN L170 areAnnotationChecker]: L10 has no Hoare annotation [2020-07-08 12:14:12,182 WARN L170 areAnnotationChecker]: L38 has no Hoare annotation [2020-07-08 12:14:12,182 WARN L170 areAnnotationChecker]: L38 has no Hoare annotation [2020-07-08 12:14:12,182 WARN L170 areAnnotationChecker]: fibo2EXIT has no Hoare annotation [2020-07-08 12:14:12,182 WARN L170 areAnnotationChecker]: fibo2EXIT has no Hoare annotation [2020-07-08 12:14:12,182 WARN L170 areAnnotationChecker]: L23-1 has no Hoare annotation [2020-07-08 12:14:12,182 WARN L170 areAnnotationChecker]: fibo1EXIT has no Hoare annotation [2020-07-08 12:14:12,182 WARN L170 areAnnotationChecker]: fibo1EXIT has no Hoare annotation [2020-07-08 12:14:12,183 WARN L170 areAnnotationChecker]: fibo1EXIT has no Hoare annotation [2020-07-08 12:14:12,183 WARN L170 areAnnotationChecker]: L13-1 has no Hoare annotation [2020-07-08 12:14:12,183 WARN L170 areAnnotationChecker]: L39 has no Hoare annotation [2020-07-08 12:14:12,183 WARN L170 areAnnotationChecker]: L39 has no Hoare annotation [2020-07-08 12:14:12,183 WARN L170 areAnnotationChecker]: L38-2 has no Hoare annotation [2020-07-08 12:14:12,183 WARN L170 areAnnotationChecker]: L13-1 has no Hoare annotation [2020-07-08 12:14:12,183 WARN L170 areAnnotationChecker]: L13-3 has no Hoare annotation [2020-07-08 12:14:12,183 WARN L170 areAnnotationChecker]: L23-1 has no Hoare annotation [2020-07-08 12:14:12,183 WARN L170 areAnnotationChecker]: L23-3 has no Hoare annotation [2020-07-08 12:14:12,183 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-08 12:14:12,183 WARN L170 areAnnotationChecker]: L13-3 has no Hoare annotation [2020-07-08 12:14:12,183 WARN L170 areAnnotationChecker]: L23-3 has no Hoare annotation [2020-07-08 12:14:12,184 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-08 12:14:12,184 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. [2020-07-08 12:14:12,185 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.07 12:14:12 BoogieIcfgContainer [2020-07-08 12:14:12,186 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-08 12:14:12,187 INFO L168 Benchmark]: Toolchain (without parser) took 23482.58 ms. Allocated memory was 146.8 MB in the beginning and 396.4 MB in the end (delta: 249.6 MB). Free memory was 105.2 MB in the beginning and 332.9 MB in the end (delta: -227.7 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. [2020-07-08 12:14:12,188 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 146.8 MB. Free memory was 123.0 MB in the beginning and 122.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-08 12:14:12,188 INFO L168 Benchmark]: CACSL2BoogieTranslator took 269.92 ms. Allocated memory is still 146.8 MB. Free memory was 105.0 MB in the beginning and 94.6 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. [2020-07-08 12:14:12,189 INFO L168 Benchmark]: Boogie Preprocessor took 110.73 ms. Allocated memory was 146.8 MB in the beginning and 202.9 MB in the end (delta: 56.1 MB). Free memory was 94.6 MB in the beginning and 181.4 MB in the end (delta: -86.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. [2020-07-08 12:14:12,189 INFO L168 Benchmark]: RCFGBuilder took 362.55 ms. Allocated memory is still 202.9 MB. Free memory was 180.8 MB in the beginning and 162.0 MB in the end (delta: 18.7 MB). Peak memory consumption was 18.7 MB. Max. memory is 7.1 GB. [2020-07-08 12:14:12,190 INFO L168 Benchmark]: TraceAbstraction took 22733.84 ms. Allocated memory was 202.9 MB in the beginning and 396.4 MB in the end (delta: 193.5 MB). Free memory was 161.4 MB in the beginning and 332.9 MB in the end (delta: -171.5 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. [2020-07-08 12:14:12,192 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 146.8 MB. Free memory was 123.0 MB in the beginning and 122.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 269.92 ms. Allocated memory is still 146.8 MB. Free memory was 105.0 MB in the beginning and 94.6 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 110.73 ms. Allocated memory was 146.8 MB in the beginning and 202.9 MB in the end (delta: 56.1 MB). Free memory was 94.6 MB in the beginning and 181.4 MB in the end (delta: -86.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 362.55 ms. Allocated memory is still 202.9 MB. Free memory was 180.8 MB in the beginning and 162.0 MB in the end (delta: 18.7 MB). Peak memory consumption was 18.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 22733.84 ms. Allocated memory was 202.9 MB in the beginning and 396.4 MB in the end (delta: 193.5 MB). Free memory was 161.4 MB in the beginning and 332.9 MB in the end (delta: -171.5 MB). Peak memory consumption was 22.0 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: 21.7s, OverallIterations: 11, TraceHistogramMax: 7, AutomataDifference: 12.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 338 SDtfs, 376 SDslu, 2413 SDs, 0 SdLazy, 2484 SolverSat, 312 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 789 GetRequests, 616 SyntacticMatches, 5 SemanticMatches, 168 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 467 ImplicationChecksByTransitivity, 2.3s 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: 0.6s AutomataMinimizationTime, 11 MinimizatonAttempts, 82 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 404 PreInvPairs, 485 NumberOfFragments, 111 HoareAnnotationTreeSize, 404 FomulaSimplifications, 684 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 11 FomulaSimplificationsInter, 1094 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 5.3s InterpolantComputationTime, 973 NumberOfCodeBlocks, 973 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 953 ConstructedInterpolants, 0 QuantifiedInterpolants, 127421 SizeOfPredicates, 33 NumberOfNonLiveVariables, 1060 ConjunctsInSsa, 103 ConjunctsInUnsatCore, 20 InterpolantComputations, 2 PerfectInterpolantSequences, 680/968 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...