/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 --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/recursive-simple/fibo_2calls_4-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-46f3038-m [2020-07-08 22:03:52,957 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-08 22:03:52,960 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-08 22:03:52,981 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-08 22:03:52,982 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-08 22:03:52,984 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-08 22:03:52,986 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-08 22:03:52,998 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-08 22:03:53,002 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-08 22:03:53,005 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-08 22:03:53,008 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-08 22:03:53,011 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-08 22:03:53,011 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-08 22:03:53,013 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-08 22:03:53,016 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-08 22:03:53,017 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-08 22:03:53,019 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-08 22:03:53,020 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-08 22:03:53,022 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-08 22:03:53,027 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-08 22:03:53,032 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-08 22:03:53,037 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-08 22:03:53,038 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-08 22:03:53,039 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-08 22:03:53,041 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-08 22:03:53,041 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-08 22:03:53,042 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-08 22:03:53,044 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-08 22:03:53,045 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-08 22:03:53,046 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-08 22:03:53,046 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-08 22:03:53,047 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-08 22:03:53,048 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-08 22:03:53,049 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-08 22:03:53,050 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-08 22:03:53,050 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-08 22:03:53,051 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-08 22:03:53,051 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-08 22:03:53,051 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-08 22:03:53,052 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-08 22:03:53,054 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-08 22:03:53,055 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-08 22:03:53,079 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-08 22:03:53,080 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-08 22:03:53,089 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-08 22:03:53,089 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-08 22:03:53,090 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-08 22:03:53,090 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-08 22:03:53,090 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-08 22:03:53,090 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-08 22:03:53,090 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-08 22:03:53,091 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-08 22:03:53,091 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-08 22:03:53,091 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-08 22:03:53,091 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-08 22:03:53,091 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-08 22:03:53,092 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-08 22:03:53,092 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-08 22:03:53,092 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-08 22:03:53,093 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-08 22:03:53,094 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-08 22:03:53,094 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-08 22:03:53,094 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-08 22:03:53,094 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-08 22:03:53,094 INFO L138 SettingsManager]: * Use separate solver for trace checks=false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-07-08 22:03:53,418 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-08 22:03:53,439 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-08 22:03:53,443 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-08 22:03:53,444 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-08 22:03:53,445 INFO L275 PluginConnector]: CDTParser initialized [2020-07-08 22:03:53,446 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/fibo_2calls_4-2.c [2020-07-08 22:03:53,523 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8cdf429c7/dc894d9891634636b11680a19510330c/FLAG17bcc7702 [2020-07-08 22:03:54,032 INFO L306 CDTParser]: Found 1 translation units. [2020-07-08 22:03:54,032 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/recursive-simple/fibo_2calls_4-2.c [2020-07-08 22:03:54,039 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8cdf429c7/dc894d9891634636b11680a19510330c/FLAG17bcc7702 [2020-07-08 22:03:54,371 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8cdf429c7/dc894d9891634636b11680a19510330c [2020-07-08 22:03:54,380 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-08 22:03:54,382 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-08 22:03:54,383 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-08 22:03:54,383 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-08 22:03:54,387 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-08 22:03:54,389 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.07 10:03:54" (1/1) ... [2020-07-08 22:03:54,392 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d1f65e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 10:03:54, skipping insertion in model container [2020-07-08 22:03:54,392 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.07 10:03:54" (1/1) ... [2020-07-08 22:03:54,401 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-08 22:03:54,419 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-08 22:03:54,671 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-08 22:03:54,683 INFO L203 MainTranslator]: Completed pre-run [2020-07-08 22:03:54,712 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-08 22:03:54,731 INFO L208 MainTranslator]: Completed translation [2020-07-08 22:03:54,731 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 10:03:54 WrapperNode [2020-07-08 22:03:54,731 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-08 22:03:54,732 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-08 22:03:54,732 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-08 22:03:54,733 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-08 22:03:54,750 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 10:03:54" (1/1) ... [2020-07-08 22:03:54,751 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 10:03:54" (1/1) ... [2020-07-08 22:03:54,757 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 10:03:54" (1/1) ... [2020-07-08 22:03:54,757 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 10:03:54" (1/1) ... [2020-07-08 22:03:54,765 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 10:03:54" (1/1) ... [2020-07-08 22:03:54,769 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 10:03:54" (1/1) ... [2020-07-08 22:03:54,774 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 10:03:54" (1/1) ... [2020-07-08 22:03:54,782 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-08 22:03:54,782 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-08 22:03:54,782 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-08 22:03:54,783 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-08 22:03:54,786 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 10:03:54" (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 22:03:55,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-08 22:03:55,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-08 22:03:55,038 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2020-07-08 22:03:55,038 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2020-07-08 22:03:55,038 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-08 22:03:55,039 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-08 22:03:55,039 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-08 22:03:55,039 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2020-07-08 22:03:55,039 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2020-07-08 22:03:55,040 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-08 22:03:55,040 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-08 22:03:55,040 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-08 22:03:55,445 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-08 22:03:55,445 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-08 22:03:55,450 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.07 10:03:55 BoogieIcfgContainer [2020-07-08 22:03:55,451 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-08 22:03:55,452 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-08 22:03:55,452 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-08 22:03:55,455 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-08 22:03:55,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.07 10:03:54" (1/3) ... [2020-07-08 22:03:55,456 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1270e084 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.07 10:03:55, skipping insertion in model container [2020-07-08 22:03:55,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 10:03:54" (2/3) ... [2020-07-08 22:03:55,457 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1270e084 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.07 10:03:55, skipping insertion in model container [2020-07-08 22:03:55,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.07 10:03:55" (3/3) ... [2020-07-08 22:03:55,459 INFO L109 eAbstractionObserver]: Analyzing ICFG fibo_2calls_4-2.c [2020-07-08 22:03:55,468 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-08 22:03:55,477 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-08 22:03:55,492 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-08 22:03:55,515 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-08 22:03:55,515 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-08 22:03:55,515 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-07-08 22:03:55,516 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-08 22:03:55,516 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-08 22:03:55,516 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-08 22:03:55,517 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-08 22:03:55,517 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-08 22:03:55,533 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2020-07-08 22:03:55,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-07-08 22:03:55,544 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 22:03:55,545 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 22:03:55,545 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 22:03:55,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 22:03:55,552 INFO L82 PathProgramCache]: Analyzing trace with hash -1089710179, now seen corresponding path program 1 times [2020-07-08 22:03:55,561 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 22:03:55,561 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [868164050] [2020-07-08 22:03:55,562 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 22:03:55,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:03:55,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:03:55,791 INFO L280 TraceCheckUtils]: 0: Hoare triple {48#true} assume true; {48#true} is VALID [2020-07-08 22:03:55,792 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {48#true} {48#true} #59#return; {48#true} is VALID [2020-07-08 22:03:55,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:03:55,869 INFO L280 TraceCheckUtils]: 0: Hoare triple {48#true} ~n := #in~n; {58#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 22:03:55,877 INFO L280 TraceCheckUtils]: 1: Hoare triple {58#(= fibo1_~n |fibo1_#in~n|)} assume ~n < 1; {59#(<= |fibo1_#in~n| 0)} is VALID [2020-07-08 22:03:55,878 INFO L280 TraceCheckUtils]: 2: Hoare triple {59#(<= |fibo1_#in~n| 0)} #res := 0; {59#(<= |fibo1_#in~n| 0)} is VALID [2020-07-08 22:03:55,879 INFO L280 TraceCheckUtils]: 3: Hoare triple {59#(<= |fibo1_#in~n| 0)} assume true; {59#(<= |fibo1_#in~n| 0)} is VALID [2020-07-08 22:03:55,881 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {59#(<= |fibo1_#in~n| 0)} {52#(<= 4 main_~x~0)} #63#return; {49#false} is VALID [2020-07-08 22:03:55,882 INFO L263 TraceCheckUtils]: 0: Hoare triple {48#true} call ULTIMATE.init(); {48#true} is VALID [2020-07-08 22:03:55,882 INFO L280 TraceCheckUtils]: 1: Hoare triple {48#true} assume true; {48#true} is VALID [2020-07-08 22:03:55,883 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {48#true} {48#true} #59#return; {48#true} is VALID [2020-07-08 22:03:55,883 INFO L263 TraceCheckUtils]: 3: Hoare triple {48#true} call #t~ret5 := main(); {48#true} is VALID [2020-07-08 22:03:55,884 INFO L280 TraceCheckUtils]: 4: Hoare triple {48#true} ~x~0 := 4; {52#(<= 4 main_~x~0)} is VALID [2020-07-08 22:03:55,885 INFO L263 TraceCheckUtils]: 5: Hoare triple {52#(<= 4 main_~x~0)} call #t~ret4 := fibo1(~x~0); {48#true} is VALID [2020-07-08 22:03:55,886 INFO L280 TraceCheckUtils]: 6: Hoare triple {48#true} ~n := #in~n; {58#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 22:03:55,896 INFO L280 TraceCheckUtils]: 7: Hoare triple {58#(= fibo1_~n |fibo1_#in~n|)} assume ~n < 1; {59#(<= |fibo1_#in~n| 0)} is VALID [2020-07-08 22:03:55,898 INFO L280 TraceCheckUtils]: 8: Hoare triple {59#(<= |fibo1_#in~n| 0)} #res := 0; {59#(<= |fibo1_#in~n| 0)} is VALID [2020-07-08 22:03:55,898 INFO L280 TraceCheckUtils]: 9: Hoare triple {59#(<= |fibo1_#in~n| 0)} assume true; {59#(<= |fibo1_#in~n| 0)} is VALID [2020-07-08 22:03:55,907 INFO L275 TraceCheckUtils]: 10: Hoare quadruple {59#(<= |fibo1_#in~n| 0)} {52#(<= 4 main_~x~0)} #63#return; {49#false} is VALID [2020-07-08 22:03:55,907 INFO L280 TraceCheckUtils]: 11: Hoare triple {49#false} assume -2147483648 <= #t~ret4 && #t~ret4 <= 2147483647; {49#false} is VALID [2020-07-08 22:03:55,908 INFO L280 TraceCheckUtils]: 12: Hoare triple {49#false} ~result~0 := #t~ret4; {49#false} is VALID [2020-07-08 22:03:55,908 INFO L280 TraceCheckUtils]: 13: Hoare triple {49#false} havoc #t~ret4; {49#false} is VALID [2020-07-08 22:03:55,908 INFO L280 TraceCheckUtils]: 14: Hoare triple {49#false} assume 3 == ~result~0; {49#false} is VALID [2020-07-08 22:03:55,909 INFO L280 TraceCheckUtils]: 15: Hoare triple {49#false} assume !false; {49#false} is VALID [2020-07-08 22:03:55,913 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 22:03:55,914 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [868164050] [2020-07-08 22:03:55,916 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 22:03:55,916 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-08 22:03:55,917 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709044958] [2020-07-08 22:03:55,923 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-07-08 22:03:55,925 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 22:03:55,928 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-08 22:03:55,980 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 16 edges. 16 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:03:55,981 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-08 22:03:55,981 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 22:03:55,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-08 22:03:55,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-08 22:03:55,992 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 5 states. [2020-07-08 22:03:56,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:03:56,428 INFO L93 Difference]: Finished difference Result 58 states and 67 transitions. [2020-07-08 22:03:56,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-08 22:03:56,429 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-07-08 22:03:56,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 22:03:56,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-08 22:03:56,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 67 transitions. [2020-07-08 22:03:56,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-08 22:03:56,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 67 transitions. [2020-07-08 22:03:56,470 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 67 transitions. [2020-07-08 22:03:56,589 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 67 edges. 67 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:03:56,615 INFO L225 Difference]: With dead ends: 58 [2020-07-08 22:03:56,615 INFO L226 Difference]: Without dead ends: 42 [2020-07-08 22:03:56,627 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-08 22:03:56,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-07-08 22:03:56,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-07-08 22:03:56,755 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 22:03:56,755 INFO L82 GeneralOperation]: Start isEquivalent. First operand 42 states. Second operand 42 states. [2020-07-08 22:03:56,756 INFO L74 IsIncluded]: Start isIncluded. First operand 42 states. Second operand 42 states. [2020-07-08 22:03:56,756 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 42 states. [2020-07-08 22:03:56,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:03:56,770 INFO L93 Difference]: Finished difference Result 42 states and 49 transitions. [2020-07-08 22:03:56,771 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2020-07-08 22:03:56,772 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:03:56,773 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:03:56,773 INFO L74 IsIncluded]: Start isIncluded. First operand 42 states. Second operand 42 states. [2020-07-08 22:03:56,773 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 42 states. [2020-07-08 22:03:56,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:03:56,790 INFO L93 Difference]: Finished difference Result 42 states and 49 transitions. [2020-07-08 22:03:56,791 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2020-07-08 22:03:56,793 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:03:56,794 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:03:56,794 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 22:03:56,794 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 22:03:56,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-07-08 22:03:56,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2020-07-08 22:03:56,807 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 16 [2020-07-08 22:03:56,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 22:03:56,808 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2020-07-08 22:03:56,808 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-08 22:03:56,809 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 42 states and 49 transitions. [2020-07-08 22:03:56,871 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 49 edges. 49 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:03:56,871 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2020-07-08 22:03:56,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-07-08 22:03:56,873 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 22:03:56,873 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 22:03:56,874 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-08 22:03:56,875 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 22:03:56,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 22:03:56,876 INFO L82 PathProgramCache]: Analyzing trace with hash -653728005, now seen corresponding path program 1 times [2020-07-08 22:03:56,876 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 22:03:56,876 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [467150428] [2020-07-08 22:03:56,876 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 22:03:56,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:03:56,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:03:56,939 INFO L280 TraceCheckUtils]: 0: Hoare triple {348#true} assume true; {348#true} is VALID [2020-07-08 22:03:56,940 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {348#true} {348#true} #59#return; {348#true} is VALID [2020-07-08 22:03:56,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:03:56,978 INFO L280 TraceCheckUtils]: 0: Hoare triple {348#true} ~n := #in~n; {359#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 22:03:56,979 INFO L280 TraceCheckUtils]: 1: Hoare triple {359#(= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {359#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 22:03:56,980 INFO L280 TraceCheckUtils]: 2: Hoare triple {359#(= fibo1_~n |fibo1_#in~n|)} assume 1 == ~n; {360#(<= |fibo1_#in~n| 1)} is VALID [2020-07-08 22:03:56,981 INFO L280 TraceCheckUtils]: 3: Hoare triple {360#(<= |fibo1_#in~n| 1)} #res := 1; {360#(<= |fibo1_#in~n| 1)} is VALID [2020-07-08 22:03:56,981 INFO L280 TraceCheckUtils]: 4: Hoare triple {360#(<= |fibo1_#in~n| 1)} assume true; {360#(<= |fibo1_#in~n| 1)} is VALID [2020-07-08 22:03:56,983 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {360#(<= |fibo1_#in~n| 1)} {352#(<= 4 main_~x~0)} #63#return; {349#false} is VALID [2020-07-08 22:03:56,983 INFO L263 TraceCheckUtils]: 0: Hoare triple {348#true} call ULTIMATE.init(); {348#true} is VALID [2020-07-08 22:03:56,983 INFO L280 TraceCheckUtils]: 1: Hoare triple {348#true} assume true; {348#true} is VALID [2020-07-08 22:03:56,984 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {348#true} {348#true} #59#return; {348#true} is VALID [2020-07-08 22:03:56,984 INFO L263 TraceCheckUtils]: 3: Hoare triple {348#true} call #t~ret5 := main(); {348#true} is VALID [2020-07-08 22:03:56,985 INFO L280 TraceCheckUtils]: 4: Hoare triple {348#true} ~x~0 := 4; {352#(<= 4 main_~x~0)} is VALID [2020-07-08 22:03:56,985 INFO L263 TraceCheckUtils]: 5: Hoare triple {352#(<= 4 main_~x~0)} call #t~ret4 := fibo1(~x~0); {348#true} is VALID [2020-07-08 22:03:56,986 INFO L280 TraceCheckUtils]: 6: Hoare triple {348#true} ~n := #in~n; {359#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 22:03:56,987 INFO L280 TraceCheckUtils]: 7: Hoare triple {359#(= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {359#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 22:03:56,988 INFO L280 TraceCheckUtils]: 8: Hoare triple {359#(= fibo1_~n |fibo1_#in~n|)} assume 1 == ~n; {360#(<= |fibo1_#in~n| 1)} is VALID [2020-07-08 22:03:56,988 INFO L280 TraceCheckUtils]: 9: Hoare triple {360#(<= |fibo1_#in~n| 1)} #res := 1; {360#(<= |fibo1_#in~n| 1)} is VALID [2020-07-08 22:03:56,989 INFO L280 TraceCheckUtils]: 10: Hoare triple {360#(<= |fibo1_#in~n| 1)} assume true; {360#(<= |fibo1_#in~n| 1)} is VALID [2020-07-08 22:03:56,990 INFO L275 TraceCheckUtils]: 11: Hoare quadruple {360#(<= |fibo1_#in~n| 1)} {352#(<= 4 main_~x~0)} #63#return; {349#false} is VALID [2020-07-08 22:03:56,991 INFO L280 TraceCheckUtils]: 12: Hoare triple {349#false} assume -2147483648 <= #t~ret4 && #t~ret4 <= 2147483647; {349#false} is VALID [2020-07-08 22:03:56,991 INFO L280 TraceCheckUtils]: 13: Hoare triple {349#false} ~result~0 := #t~ret4; {349#false} is VALID [2020-07-08 22:03:56,991 INFO L280 TraceCheckUtils]: 14: Hoare triple {349#false} havoc #t~ret4; {349#false} is VALID [2020-07-08 22:03:56,992 INFO L280 TraceCheckUtils]: 15: Hoare triple {349#false} assume 3 == ~result~0; {349#false} is VALID [2020-07-08 22:03:56,992 INFO L280 TraceCheckUtils]: 16: Hoare triple {349#false} assume !false; {349#false} is VALID [2020-07-08 22:03:56,993 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 22:03:56,993 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [467150428] [2020-07-08 22:03:56,994 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 22:03:56,994 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-08 22:03:56,994 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619182922] [2020-07-08 22:03:56,996 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-07-08 22:03:56,996 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 22:03:56,996 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-08 22:03:57,015 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 17 edges. 17 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:03:57,015 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-08 22:03:57,016 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 22:03:57,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-08 22:03:57,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-08 22:03:57,017 INFO L87 Difference]: Start difference. First operand 42 states and 49 transitions. Second operand 5 states. [2020-07-08 22:03:57,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:03:57,265 INFO L93 Difference]: Finished difference Result 50 states and 58 transitions. [2020-07-08 22:03:57,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-08 22:03:57,265 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-07-08 22:03:57,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 22:03:57,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-08 22:03:57,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 55 transitions. [2020-07-08 22:03:57,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-08 22:03:57,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 55 transitions. [2020-07-08 22:03:57,273 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 55 transitions. [2020-07-08 22:03:57,346 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 55 edges. 55 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:03:57,349 INFO L225 Difference]: With dead ends: 50 [2020-07-08 22:03:57,349 INFO L226 Difference]: Without dead ends: 44 [2020-07-08 22:03:57,350 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 22:03:57,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-07-08 22:03:57,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 42. [2020-07-08 22:03:57,401 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 22:03:57,401 INFO L82 GeneralOperation]: Start isEquivalent. First operand 44 states. Second operand 42 states. [2020-07-08 22:03:57,401 INFO L74 IsIncluded]: Start isIncluded. First operand 44 states. Second operand 42 states. [2020-07-08 22:03:57,401 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 42 states. [2020-07-08 22:03:57,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:03:57,407 INFO L93 Difference]: Finished difference Result 44 states and 52 transitions. [2020-07-08 22:03:57,407 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 52 transitions. [2020-07-08 22:03:57,408 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:03:57,408 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:03:57,409 INFO L74 IsIncluded]: Start isIncluded. First operand 42 states. Second operand 44 states. [2020-07-08 22:03:57,409 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 44 states. [2020-07-08 22:03:57,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:03:57,414 INFO L93 Difference]: Finished difference Result 44 states and 52 transitions. [2020-07-08 22:03:57,414 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 52 transitions. [2020-07-08 22:03:57,416 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:03:57,416 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:03:57,416 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 22:03:57,417 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 22:03:57,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-07-08 22:03:57,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2020-07-08 22:03:57,421 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 17 [2020-07-08 22:03:57,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 22:03:57,421 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2020-07-08 22:03:57,421 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-08 22:03:57,422 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 42 states and 49 transitions. [2020-07-08 22:03:57,512 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 49 edges. 49 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:03:57,513 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2020-07-08 22:03:57,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-07-08 22:03:57,514 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 22:03:57,514 INFO L422 BasicCegarLoop]: trace histogram [2, 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] [2020-07-08 22:03:57,515 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-08 22:03:57,515 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 22:03:57,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 22:03:57,516 INFO L82 PathProgramCache]: Analyzing trace with hash -1617834856, now seen corresponding path program 1 times [2020-07-08 22:03:57,516 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 22:03:57,516 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1788157073] [2020-07-08 22:03:57,516 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 22:03:57,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:03:57,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:03:57,561 INFO L280 TraceCheckUtils]: 0: Hoare triple {637#true} assume true; {637#true} is VALID [2020-07-08 22:03:57,561 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {637#true} {637#true} #59#return; {637#true} is VALID [2020-07-08 22:03:57,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:03:57,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:03:57,656 INFO L280 TraceCheckUtils]: 0: Hoare triple {637#true} ~n := #in~n; {676#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 22:03:57,657 INFO L280 TraceCheckUtils]: 1: Hoare triple {676#(= fibo2_~n |fibo2_#in~n|)} assume ~n < 1; {677#(<= |fibo2_#in~n| 0)} is VALID [2020-07-08 22:03:57,658 INFO L280 TraceCheckUtils]: 2: Hoare triple {677#(<= |fibo2_#in~n| 0)} #res := 0; {677#(<= |fibo2_#in~n| 0)} is VALID [2020-07-08 22:03:57,659 INFO L280 TraceCheckUtils]: 3: Hoare triple {677#(<= |fibo2_#in~n| 0)} assume true; {677#(<= |fibo2_#in~n| 0)} is VALID [2020-07-08 22:03:57,660 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {677#(<= |fibo2_#in~n| 0)} {665#(< 1 fibo1_~n)} #69#return; {638#false} is VALID [2020-07-08 22:03:57,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:03:57,667 INFO L280 TraceCheckUtils]: 0: Hoare triple {637#true} ~n := #in~n; {637#true} is VALID [2020-07-08 22:03:57,667 INFO L280 TraceCheckUtils]: 1: Hoare triple {637#true} assume ~n < 1; {637#true} is VALID [2020-07-08 22:03:57,668 INFO L280 TraceCheckUtils]: 2: Hoare triple {637#true} #res := 0; {637#true} is VALID [2020-07-08 22:03:57,668 INFO L280 TraceCheckUtils]: 3: Hoare triple {637#true} assume true; {637#true} is VALID [2020-07-08 22:03:57,668 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {637#true} {638#false} #71#return; {638#false} is VALID [2020-07-08 22:03:57,669 INFO L280 TraceCheckUtils]: 0: Hoare triple {637#true} ~n := #in~n; {637#true} is VALID [2020-07-08 22:03:57,670 INFO L280 TraceCheckUtils]: 1: Hoare triple {637#true} assume !(~n < 1); {664#(< 0 fibo1_~n)} is VALID [2020-07-08 22:03:57,671 INFO L280 TraceCheckUtils]: 2: Hoare triple {664#(< 0 fibo1_~n)} assume !(1 == ~n); {665#(< 1 fibo1_~n)} is VALID [2020-07-08 22:03:57,671 INFO L263 TraceCheckUtils]: 3: Hoare triple {665#(< 1 fibo1_~n)} call #t~ret0 := fibo2(~n - 1); {637#true} is VALID [2020-07-08 22:03:57,672 INFO L280 TraceCheckUtils]: 4: Hoare triple {637#true} ~n := #in~n; {676#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 22:03:57,673 INFO L280 TraceCheckUtils]: 5: Hoare triple {676#(= fibo2_~n |fibo2_#in~n|)} assume ~n < 1; {677#(<= |fibo2_#in~n| 0)} is VALID [2020-07-08 22:03:57,673 INFO L280 TraceCheckUtils]: 6: Hoare triple {677#(<= |fibo2_#in~n| 0)} #res := 0; {677#(<= |fibo2_#in~n| 0)} is VALID [2020-07-08 22:03:57,674 INFO L280 TraceCheckUtils]: 7: Hoare triple {677#(<= |fibo2_#in~n| 0)} assume true; {677#(<= |fibo2_#in~n| 0)} is VALID [2020-07-08 22:03:57,676 INFO L275 TraceCheckUtils]: 8: Hoare quadruple {677#(<= |fibo2_#in~n| 0)} {665#(< 1 fibo1_~n)} #69#return; {638#false} is VALID [2020-07-08 22:03:57,676 INFO L280 TraceCheckUtils]: 9: Hoare triple {638#false} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {638#false} is VALID [2020-07-08 22:03:57,676 INFO L263 TraceCheckUtils]: 10: Hoare triple {638#false} call #t~ret1 := fibo2(~n - 2); {637#true} is VALID [2020-07-08 22:03:57,677 INFO L280 TraceCheckUtils]: 11: Hoare triple {637#true} ~n := #in~n; {637#true} is VALID [2020-07-08 22:03:57,677 INFO L280 TraceCheckUtils]: 12: Hoare triple {637#true} assume ~n < 1; {637#true} is VALID [2020-07-08 22:03:57,677 INFO L280 TraceCheckUtils]: 13: Hoare triple {637#true} #res := 0; {637#true} is VALID [2020-07-08 22:03:57,678 INFO L280 TraceCheckUtils]: 14: Hoare triple {637#true} assume true; {637#true} is VALID [2020-07-08 22:03:57,678 INFO L275 TraceCheckUtils]: 15: Hoare quadruple {637#true} {638#false} #71#return; {638#false} is VALID [2020-07-08 22:03:57,678 INFO L280 TraceCheckUtils]: 16: Hoare triple {638#false} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647; {638#false} is VALID [2020-07-08 22:03:57,679 INFO L280 TraceCheckUtils]: 17: Hoare triple {638#false} #res := #t~ret0 + #t~ret1; {638#false} is VALID [2020-07-08 22:03:57,679 INFO L280 TraceCheckUtils]: 18: Hoare triple {638#false} havoc #t~ret1; {638#false} is VALID [2020-07-08 22:03:57,679 INFO L280 TraceCheckUtils]: 19: Hoare triple {638#false} havoc #t~ret0; {638#false} is VALID [2020-07-08 22:03:57,680 INFO L280 TraceCheckUtils]: 20: Hoare triple {638#false} assume true; {638#false} is VALID [2020-07-08 22:03:57,680 INFO L275 TraceCheckUtils]: 21: Hoare quadruple {638#false} {641#(<= 4 main_~x~0)} #63#return; {638#false} is VALID [2020-07-08 22:03:57,681 INFO L263 TraceCheckUtils]: 0: Hoare triple {637#true} call ULTIMATE.init(); {637#true} is VALID [2020-07-08 22:03:57,681 INFO L280 TraceCheckUtils]: 1: Hoare triple {637#true} assume true; {637#true} is VALID [2020-07-08 22:03:57,681 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {637#true} {637#true} #59#return; {637#true} is VALID [2020-07-08 22:03:57,682 INFO L263 TraceCheckUtils]: 3: Hoare triple {637#true} call #t~ret5 := main(); {637#true} is VALID [2020-07-08 22:03:57,683 INFO L280 TraceCheckUtils]: 4: Hoare triple {637#true} ~x~0 := 4; {641#(<= 4 main_~x~0)} is VALID [2020-07-08 22:03:57,683 INFO L263 TraceCheckUtils]: 5: Hoare triple {641#(<= 4 main_~x~0)} call #t~ret4 := fibo1(~x~0); {637#true} is VALID [2020-07-08 22:03:57,683 INFO L280 TraceCheckUtils]: 6: Hoare triple {637#true} ~n := #in~n; {637#true} is VALID [2020-07-08 22:03:57,684 INFO L280 TraceCheckUtils]: 7: Hoare triple {637#true} assume !(~n < 1); {664#(< 0 fibo1_~n)} is VALID [2020-07-08 22:03:57,685 INFO L280 TraceCheckUtils]: 8: Hoare triple {664#(< 0 fibo1_~n)} assume !(1 == ~n); {665#(< 1 fibo1_~n)} is VALID [2020-07-08 22:03:57,685 INFO L263 TraceCheckUtils]: 9: Hoare triple {665#(< 1 fibo1_~n)} call #t~ret0 := fibo2(~n - 1); {637#true} is VALID [2020-07-08 22:03:57,686 INFO L280 TraceCheckUtils]: 10: Hoare triple {637#true} ~n := #in~n; {676#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 22:03:57,687 INFO L280 TraceCheckUtils]: 11: Hoare triple {676#(= fibo2_~n |fibo2_#in~n|)} assume ~n < 1; {677#(<= |fibo2_#in~n| 0)} is VALID [2020-07-08 22:03:57,688 INFO L280 TraceCheckUtils]: 12: Hoare triple {677#(<= |fibo2_#in~n| 0)} #res := 0; {677#(<= |fibo2_#in~n| 0)} is VALID [2020-07-08 22:03:57,689 INFO L280 TraceCheckUtils]: 13: Hoare triple {677#(<= |fibo2_#in~n| 0)} assume true; {677#(<= |fibo2_#in~n| 0)} is VALID [2020-07-08 22:03:57,690 INFO L275 TraceCheckUtils]: 14: Hoare quadruple {677#(<= |fibo2_#in~n| 0)} {665#(< 1 fibo1_~n)} #69#return; {638#false} is VALID [2020-07-08 22:03:57,691 INFO L280 TraceCheckUtils]: 15: Hoare triple {638#false} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {638#false} is VALID [2020-07-08 22:03:57,691 INFO L263 TraceCheckUtils]: 16: Hoare triple {638#false} call #t~ret1 := fibo2(~n - 2); {637#true} is VALID [2020-07-08 22:03:57,691 INFO L280 TraceCheckUtils]: 17: Hoare triple {637#true} ~n := #in~n; {637#true} is VALID [2020-07-08 22:03:57,691 INFO L280 TraceCheckUtils]: 18: Hoare triple {637#true} assume ~n < 1; {637#true} is VALID [2020-07-08 22:03:57,692 INFO L280 TraceCheckUtils]: 19: Hoare triple {637#true} #res := 0; {637#true} is VALID [2020-07-08 22:03:57,692 INFO L280 TraceCheckUtils]: 20: Hoare triple {637#true} assume true; {637#true} is VALID [2020-07-08 22:03:57,692 INFO L275 TraceCheckUtils]: 21: Hoare quadruple {637#true} {638#false} #71#return; {638#false} is VALID [2020-07-08 22:03:57,692 INFO L280 TraceCheckUtils]: 22: Hoare triple {638#false} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647; {638#false} is VALID [2020-07-08 22:03:57,693 INFO L280 TraceCheckUtils]: 23: Hoare triple {638#false} #res := #t~ret0 + #t~ret1; {638#false} is VALID [2020-07-08 22:03:57,693 INFO L280 TraceCheckUtils]: 24: Hoare triple {638#false} havoc #t~ret1; {638#false} is VALID [2020-07-08 22:03:57,693 INFO L280 TraceCheckUtils]: 25: Hoare triple {638#false} havoc #t~ret0; {638#false} is VALID [2020-07-08 22:03:57,693 INFO L280 TraceCheckUtils]: 26: Hoare triple {638#false} assume true; {638#false} is VALID [2020-07-08 22:03:57,694 INFO L275 TraceCheckUtils]: 27: Hoare quadruple {638#false} {641#(<= 4 main_~x~0)} #63#return; {638#false} is VALID [2020-07-08 22:03:57,694 INFO L280 TraceCheckUtils]: 28: Hoare triple {638#false} assume -2147483648 <= #t~ret4 && #t~ret4 <= 2147483647; {638#false} is VALID [2020-07-08 22:03:57,694 INFO L280 TraceCheckUtils]: 29: Hoare triple {638#false} ~result~0 := #t~ret4; {638#false} is VALID [2020-07-08 22:03:57,695 INFO L280 TraceCheckUtils]: 30: Hoare triple {638#false} havoc #t~ret4; {638#false} is VALID [2020-07-08 22:03:57,695 INFO L280 TraceCheckUtils]: 31: Hoare triple {638#false} assume 3 == ~result~0; {638#false} is VALID [2020-07-08 22:03:57,695 INFO L280 TraceCheckUtils]: 32: Hoare triple {638#false} assume !false; {638#false} is VALID [2020-07-08 22:03:57,697 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-08 22:03:57,697 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1788157073] [2020-07-08 22:03:57,697 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-08 22:03:57,698 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-07-08 22:03:57,698 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805307040] [2020-07-08 22:03:57,698 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2020-07-08 22:03:57,699 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 22:03:57,699 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states. [2020-07-08 22:03:57,734 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 33 edges. 33 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:03:57,734 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-08 22:03:57,735 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 22:03:57,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-08 22:03:57,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-07-08 22:03:57,735 INFO L87 Difference]: Start difference. First operand 42 states and 49 transitions. Second operand 7 states. [2020-07-08 22:03:58,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:03:58,118 INFO L93 Difference]: Finished difference Result 82 states and 102 transitions. [2020-07-08 22:03:58,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-08 22:03:58,119 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2020-07-08 22:03:58,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 22:03:58,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-08 22:03:58,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 99 transitions. [2020-07-08 22:03:58,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-08 22:03:58,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 99 transitions. [2020-07-08 22:03:58,128 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states and 99 transitions. [2020-07-08 22:03:58,276 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 99 edges. 99 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:03:58,281 INFO L225 Difference]: With dead ends: 82 [2020-07-08 22:03:58,281 INFO L226 Difference]: Without dead ends: 46 [2020-07-08 22:03:58,287 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-07-08 22:03:58,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-07-08 22:03:58,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 44. [2020-07-08 22:03:58,347 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 22:03:58,347 INFO L82 GeneralOperation]: Start isEquivalent. First operand 46 states. Second operand 44 states. [2020-07-08 22:03:58,347 INFO L74 IsIncluded]: Start isIncluded. First operand 46 states. Second operand 44 states. [2020-07-08 22:03:58,348 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 44 states. [2020-07-08 22:03:58,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:03:58,352 INFO L93 Difference]: Finished difference Result 46 states and 54 transitions. [2020-07-08 22:03:58,352 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 54 transitions. [2020-07-08 22:03:58,353 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:03:58,353 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:03:58,353 INFO L74 IsIncluded]: Start isIncluded. First operand 44 states. Second operand 46 states. [2020-07-08 22:03:58,353 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 46 states. [2020-07-08 22:03:58,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:03:58,357 INFO L93 Difference]: Finished difference Result 46 states and 54 transitions. [2020-07-08 22:03:58,357 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 54 transitions. [2020-07-08 22:03:58,358 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:03:58,358 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:03:58,358 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 22:03:58,358 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 22:03:58,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-07-08 22:03:58,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 51 transitions. [2020-07-08 22:03:58,362 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 51 transitions. Word has length 33 [2020-07-08 22:03:58,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 22:03:58,362 INFO L479 AbstractCegarLoop]: Abstraction has 44 states and 51 transitions. [2020-07-08 22:03:58,363 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-08 22:03:58,363 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 44 states and 51 transitions. [2020-07-08 22:03:58,441 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 51 edges. 51 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:03:58,442 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 51 transitions. [2020-07-08 22:03:58,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-07-08 22:03:58,444 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 22:03:58,444 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, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 22:03:58,445 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-08 22:03:58,445 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 22:03:58,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 22:03:58,445 INFO L82 PathProgramCache]: Analyzing trace with hash 887160861, now seen corresponding path program 1 times [2020-07-08 22:03:58,446 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 22:03:58,446 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1093416146] [2020-07-08 22:03:58,446 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 22:03:58,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:03:58,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:03:58,484 INFO L280 TraceCheckUtils]: 0: Hoare triple {1026#true} assume true; {1026#true} is VALID [2020-07-08 22:03:58,484 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {1026#true} {1026#true} #59#return; {1026#true} is VALID [2020-07-08 22:03:58,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:03:58,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:03:58,579 INFO L280 TraceCheckUtils]: 0: Hoare triple {1026#true} ~n := #in~n; {1068#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 22:03:58,584 INFO L280 TraceCheckUtils]: 1: Hoare triple {1068#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {1068#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 22:03:58,585 INFO L280 TraceCheckUtils]: 2: Hoare triple {1068#(= fibo2_~n |fibo2_#in~n|)} assume 1 == ~n; {1069#(<= |fibo2_#in~n| 1)} is VALID [2020-07-08 22:03:58,585 INFO L280 TraceCheckUtils]: 3: Hoare triple {1069#(<= |fibo2_#in~n| 1)} #res := 1; {1069#(<= |fibo2_#in~n| 1)} is VALID [2020-07-08 22:03:58,589 INFO L280 TraceCheckUtils]: 4: Hoare triple {1069#(<= |fibo2_#in~n| 1)} assume true; {1069#(<= |fibo2_#in~n| 1)} is VALID [2020-07-08 22:03:58,592 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {1069#(<= |fibo2_#in~n| 1)} {1054#(= fibo1_~n |fibo1_#in~n|)} #69#return; {1061#(and (<= fibo1_~n 2) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 22:03:58,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:03:58,619 INFO L280 TraceCheckUtils]: 0: Hoare triple {1026#true} ~n := #in~n; {1026#true} is VALID [2020-07-08 22:03:58,620 INFO L280 TraceCheckUtils]: 1: Hoare triple {1026#true} assume ~n < 1; {1026#true} is VALID [2020-07-08 22:03:58,620 INFO L280 TraceCheckUtils]: 2: Hoare triple {1026#true} #res := 0; {1026#true} is VALID [2020-07-08 22:03:58,620 INFO L280 TraceCheckUtils]: 3: Hoare triple {1026#true} assume true; {1026#true} is VALID [2020-07-08 22:03:58,621 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {1026#true} {1061#(and (<= fibo1_~n 2) (= fibo1_~n |fibo1_#in~n|))} #71#return; {1067#(<= |fibo1_#in~n| 2)} is VALID [2020-07-08 22:03:58,624 INFO L280 TraceCheckUtils]: 0: Hoare triple {1026#true} ~n := #in~n; {1054#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 22:03:58,624 INFO L280 TraceCheckUtils]: 1: Hoare triple {1054#(= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {1054#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 22:03:58,625 INFO L280 TraceCheckUtils]: 2: Hoare triple {1054#(= fibo1_~n |fibo1_#in~n|)} assume !(1 == ~n); {1054#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 22:03:58,625 INFO L263 TraceCheckUtils]: 3: Hoare triple {1054#(= fibo1_~n |fibo1_#in~n|)} call #t~ret0 := fibo2(~n - 1); {1026#true} is VALID [2020-07-08 22:03:58,626 INFO L280 TraceCheckUtils]: 4: Hoare triple {1026#true} ~n := #in~n; {1068#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 22:03:58,626 INFO L280 TraceCheckUtils]: 5: Hoare triple {1068#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {1068#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 22:03:58,626 INFO L280 TraceCheckUtils]: 6: Hoare triple {1068#(= fibo2_~n |fibo2_#in~n|)} assume 1 == ~n; {1069#(<= |fibo2_#in~n| 1)} is VALID [2020-07-08 22:03:58,627 INFO L280 TraceCheckUtils]: 7: Hoare triple {1069#(<= |fibo2_#in~n| 1)} #res := 1; {1069#(<= |fibo2_#in~n| 1)} is VALID [2020-07-08 22:03:58,627 INFO L280 TraceCheckUtils]: 8: Hoare triple {1069#(<= |fibo2_#in~n| 1)} assume true; {1069#(<= |fibo2_#in~n| 1)} is VALID [2020-07-08 22:03:58,629 INFO L275 TraceCheckUtils]: 9: Hoare quadruple {1069#(<= |fibo2_#in~n| 1)} {1054#(= fibo1_~n |fibo1_#in~n|)} #69#return; {1061#(and (<= fibo1_~n 2) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 22:03:58,630 INFO L280 TraceCheckUtils]: 10: Hoare triple {1061#(and (<= fibo1_~n 2) (= fibo1_~n |fibo1_#in~n|))} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {1061#(and (<= fibo1_~n 2) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 22:03:58,630 INFO L263 TraceCheckUtils]: 11: Hoare triple {1061#(and (<= fibo1_~n 2) (= fibo1_~n |fibo1_#in~n|))} call #t~ret1 := fibo2(~n - 2); {1026#true} is VALID [2020-07-08 22:03:58,631 INFO L280 TraceCheckUtils]: 12: Hoare triple {1026#true} ~n := #in~n; {1026#true} is VALID [2020-07-08 22:03:58,631 INFO L280 TraceCheckUtils]: 13: Hoare triple {1026#true} assume ~n < 1; {1026#true} is VALID [2020-07-08 22:03:58,631 INFO L280 TraceCheckUtils]: 14: Hoare triple {1026#true} #res := 0; {1026#true} is VALID [2020-07-08 22:03:58,632 INFO L280 TraceCheckUtils]: 15: Hoare triple {1026#true} assume true; {1026#true} is VALID [2020-07-08 22:03:58,633 INFO L275 TraceCheckUtils]: 16: Hoare quadruple {1026#true} {1061#(and (<= fibo1_~n 2) (= fibo1_~n |fibo1_#in~n|))} #71#return; {1067#(<= |fibo1_#in~n| 2)} is VALID [2020-07-08 22:03:58,634 INFO L280 TraceCheckUtils]: 17: Hoare triple {1067#(<= |fibo1_#in~n| 2)} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647; {1067#(<= |fibo1_#in~n| 2)} is VALID [2020-07-08 22:03:58,634 INFO L280 TraceCheckUtils]: 18: Hoare triple {1067#(<= |fibo1_#in~n| 2)} #res := #t~ret0 + #t~ret1; {1067#(<= |fibo1_#in~n| 2)} is VALID [2020-07-08 22:03:58,635 INFO L280 TraceCheckUtils]: 19: Hoare triple {1067#(<= |fibo1_#in~n| 2)} havoc #t~ret1; {1067#(<= |fibo1_#in~n| 2)} is VALID [2020-07-08 22:03:58,635 INFO L280 TraceCheckUtils]: 20: Hoare triple {1067#(<= |fibo1_#in~n| 2)} havoc #t~ret0; {1067#(<= |fibo1_#in~n| 2)} is VALID [2020-07-08 22:03:58,636 INFO L280 TraceCheckUtils]: 21: Hoare triple {1067#(<= |fibo1_#in~n| 2)} assume true; {1067#(<= |fibo1_#in~n| 2)} is VALID [2020-07-08 22:03:58,637 INFO L275 TraceCheckUtils]: 22: Hoare quadruple {1067#(<= |fibo1_#in~n| 2)} {1030#(<= 4 main_~x~0)} #63#return; {1027#false} is VALID [2020-07-08 22:03:58,638 INFO L263 TraceCheckUtils]: 0: Hoare triple {1026#true} call ULTIMATE.init(); {1026#true} is VALID [2020-07-08 22:03:58,638 INFO L280 TraceCheckUtils]: 1: Hoare triple {1026#true} assume true; {1026#true} is VALID [2020-07-08 22:03:58,639 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {1026#true} {1026#true} #59#return; {1026#true} is VALID [2020-07-08 22:03:58,639 INFO L263 TraceCheckUtils]: 3: Hoare triple {1026#true} call #t~ret5 := main(); {1026#true} is VALID [2020-07-08 22:03:58,640 INFO L280 TraceCheckUtils]: 4: Hoare triple {1026#true} ~x~0 := 4; {1030#(<= 4 main_~x~0)} is VALID [2020-07-08 22:03:58,640 INFO L263 TraceCheckUtils]: 5: Hoare triple {1030#(<= 4 main_~x~0)} call #t~ret4 := fibo1(~x~0); {1026#true} is VALID [2020-07-08 22:03:58,641 INFO L280 TraceCheckUtils]: 6: Hoare triple {1026#true} ~n := #in~n; {1054#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 22:03:58,641 INFO L280 TraceCheckUtils]: 7: Hoare triple {1054#(= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {1054#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 22:03:58,642 INFO L280 TraceCheckUtils]: 8: Hoare triple {1054#(= fibo1_~n |fibo1_#in~n|)} assume !(1 == ~n); {1054#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 22:03:58,642 INFO L263 TraceCheckUtils]: 9: Hoare triple {1054#(= fibo1_~n |fibo1_#in~n|)} call #t~ret0 := fibo2(~n - 1); {1026#true} is VALID [2020-07-08 22:03:58,642 INFO L280 TraceCheckUtils]: 10: Hoare triple {1026#true} ~n := #in~n; {1068#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 22:03:58,643 INFO L280 TraceCheckUtils]: 11: Hoare triple {1068#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {1068#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 22:03:58,643 INFO L280 TraceCheckUtils]: 12: Hoare triple {1068#(= fibo2_~n |fibo2_#in~n|)} assume 1 == ~n; {1069#(<= |fibo2_#in~n| 1)} is VALID [2020-07-08 22:03:58,644 INFO L280 TraceCheckUtils]: 13: Hoare triple {1069#(<= |fibo2_#in~n| 1)} #res := 1; {1069#(<= |fibo2_#in~n| 1)} is VALID [2020-07-08 22:03:58,645 INFO L280 TraceCheckUtils]: 14: Hoare triple {1069#(<= |fibo2_#in~n| 1)} assume true; {1069#(<= |fibo2_#in~n| 1)} is VALID [2020-07-08 22:03:58,646 INFO L275 TraceCheckUtils]: 15: Hoare quadruple {1069#(<= |fibo2_#in~n| 1)} {1054#(= fibo1_~n |fibo1_#in~n|)} #69#return; {1061#(and (<= fibo1_~n 2) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 22:03:58,646 INFO L280 TraceCheckUtils]: 16: Hoare triple {1061#(and (<= fibo1_~n 2) (= fibo1_~n |fibo1_#in~n|))} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {1061#(and (<= fibo1_~n 2) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 22:03:58,647 INFO L263 TraceCheckUtils]: 17: Hoare triple {1061#(and (<= fibo1_~n 2) (= fibo1_~n |fibo1_#in~n|))} call #t~ret1 := fibo2(~n - 2); {1026#true} is VALID [2020-07-08 22:03:58,647 INFO L280 TraceCheckUtils]: 18: Hoare triple {1026#true} ~n := #in~n; {1026#true} is VALID [2020-07-08 22:03:58,647 INFO L280 TraceCheckUtils]: 19: Hoare triple {1026#true} assume ~n < 1; {1026#true} is VALID [2020-07-08 22:03:58,647 INFO L280 TraceCheckUtils]: 20: Hoare triple {1026#true} #res := 0; {1026#true} is VALID [2020-07-08 22:03:58,647 INFO L280 TraceCheckUtils]: 21: Hoare triple {1026#true} assume true; {1026#true} is VALID [2020-07-08 22:03:58,650 INFO L275 TraceCheckUtils]: 22: Hoare quadruple {1026#true} {1061#(and (<= fibo1_~n 2) (= fibo1_~n |fibo1_#in~n|))} #71#return; {1067#(<= |fibo1_#in~n| 2)} is VALID [2020-07-08 22:03:58,651 INFO L280 TraceCheckUtils]: 23: Hoare triple {1067#(<= |fibo1_#in~n| 2)} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647; {1067#(<= |fibo1_#in~n| 2)} is VALID [2020-07-08 22:03:58,651 INFO L280 TraceCheckUtils]: 24: Hoare triple {1067#(<= |fibo1_#in~n| 2)} #res := #t~ret0 + #t~ret1; {1067#(<= |fibo1_#in~n| 2)} is VALID [2020-07-08 22:03:58,652 INFO L280 TraceCheckUtils]: 25: Hoare triple {1067#(<= |fibo1_#in~n| 2)} havoc #t~ret1; {1067#(<= |fibo1_#in~n| 2)} is VALID [2020-07-08 22:03:58,652 INFO L280 TraceCheckUtils]: 26: Hoare triple {1067#(<= |fibo1_#in~n| 2)} havoc #t~ret0; {1067#(<= |fibo1_#in~n| 2)} is VALID [2020-07-08 22:03:58,653 INFO L280 TraceCheckUtils]: 27: Hoare triple {1067#(<= |fibo1_#in~n| 2)} assume true; {1067#(<= |fibo1_#in~n| 2)} is VALID [2020-07-08 22:03:58,654 INFO L275 TraceCheckUtils]: 28: Hoare quadruple {1067#(<= |fibo1_#in~n| 2)} {1030#(<= 4 main_~x~0)} #63#return; {1027#false} is VALID [2020-07-08 22:03:58,654 INFO L280 TraceCheckUtils]: 29: Hoare triple {1027#false} assume -2147483648 <= #t~ret4 && #t~ret4 <= 2147483647; {1027#false} is VALID [2020-07-08 22:03:58,654 INFO L280 TraceCheckUtils]: 30: Hoare triple {1027#false} ~result~0 := #t~ret4; {1027#false} is VALID [2020-07-08 22:03:58,654 INFO L280 TraceCheckUtils]: 31: Hoare triple {1027#false} havoc #t~ret4; {1027#false} is VALID [2020-07-08 22:03:58,655 INFO L280 TraceCheckUtils]: 32: Hoare triple {1027#false} assume 3 == ~result~0; {1027#false} is VALID [2020-07-08 22:03:58,655 INFO L280 TraceCheckUtils]: 33: Hoare triple {1027#false} assume !false; {1027#false} is VALID [2020-07-08 22:03:58,657 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 22:03:58,657 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1093416146] [2020-07-08 22:03:58,657 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-08 22:03:58,657 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-07-08 22:03:58,658 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113391652] [2020-07-08 22:03:58,658 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2020-07-08 22:03:58,659 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 22:03:58,659 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 8 states. [2020-07-08 22:03:58,708 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 34 edges. 34 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:03:58,708 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-08 22:03:58,708 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 22:03:58,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-08 22:03:58,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-07-08 22:03:58,709 INFO L87 Difference]: Start difference. First operand 44 states and 51 transitions. Second operand 8 states. [2020-07-08 22:03:59,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:03:59,448 INFO L93 Difference]: Finished difference Result 74 states and 94 transitions. [2020-07-08 22:03:59,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-08 22:03:59,449 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2020-07-08 22:03:59,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 22:03:59,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-07-08 22:03:59,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 86 transitions. [2020-07-08 22:03:59,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-07-08 22:03:59,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 86 transitions. [2020-07-08 22:03:59,456 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states and 86 transitions. [2020-07-08 22:03:59,558 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 86 edges. 86 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:03:59,562 INFO L225 Difference]: With dead ends: 74 [2020-07-08 22:03:59,562 INFO L226 Difference]: Without dead ends: 68 [2020-07-08 22:03:59,563 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-07-08 22:03:59,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-07-08 22:03:59,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 66. [2020-07-08 22:03:59,678 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 22:03:59,679 INFO L82 GeneralOperation]: Start isEquivalent. First operand 68 states. Second operand 66 states. [2020-07-08 22:03:59,679 INFO L74 IsIncluded]: Start isIncluded. First operand 68 states. Second operand 66 states. [2020-07-08 22:03:59,679 INFO L87 Difference]: Start difference. First operand 68 states. Second operand 66 states. [2020-07-08 22:03:59,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:03:59,684 INFO L93 Difference]: Finished difference Result 68 states and 88 transitions. [2020-07-08 22:03:59,685 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 88 transitions. [2020-07-08 22:03:59,686 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:03:59,686 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:03:59,686 INFO L74 IsIncluded]: Start isIncluded. First operand 66 states. Second operand 68 states. [2020-07-08 22:03:59,686 INFO L87 Difference]: Start difference. First operand 66 states. Second operand 68 states. [2020-07-08 22:03:59,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:03:59,691 INFO L93 Difference]: Finished difference Result 68 states and 88 transitions. [2020-07-08 22:03:59,692 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 88 transitions. [2020-07-08 22:03:59,692 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:03:59,693 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:03:59,693 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 22:03:59,693 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 22:03:59,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-07-08 22:03:59,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 83 transitions. [2020-07-08 22:03:59,698 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 83 transitions. Word has length 34 [2020-07-08 22:03:59,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 22:03:59,698 INFO L479 AbstractCegarLoop]: Abstraction has 66 states and 83 transitions. [2020-07-08 22:03:59,698 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-08 22:03:59,698 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 66 states and 83 transitions. [2020-07-08 22:03:59,803 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 83 edges. 83 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:03:59,803 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 83 transitions. [2020-07-08 22:03:59,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-07-08 22:03:59,806 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 22:03:59,806 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 22:03:59,806 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-08 22:03:59,807 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 22:03:59,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 22:03:59,807 INFO L82 PathProgramCache]: Analyzing trace with hash 1875452576, now seen corresponding path program 1 times [2020-07-08 22:03:59,807 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 22:03:59,808 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [510293509] [2020-07-08 22:03:59,808 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 22:03:59,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:03:59,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:03:59,845 INFO L280 TraceCheckUtils]: 0: Hoare triple {1491#true} assume true; {1491#true} is VALID [2020-07-08 22:03:59,845 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {1491#true} {1491#true} #59#return; {1491#true} is VALID [2020-07-08 22:03:59,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:03:59,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:03:59,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:03:59,945 INFO L280 TraceCheckUtils]: 0: Hoare triple {1491#true} ~n := #in~n; {1573#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 22:03:59,946 INFO L280 TraceCheckUtils]: 1: Hoare triple {1573#(= fibo1_~n |fibo1_#in~n|)} assume ~n < 1; {1574#(<= |fibo1_#in~n| 0)} is VALID [2020-07-08 22:03:59,946 INFO L280 TraceCheckUtils]: 2: Hoare triple {1574#(<= |fibo1_#in~n| 0)} #res := 0; {1574#(<= |fibo1_#in~n| 0)} is VALID [2020-07-08 22:03:59,947 INFO L280 TraceCheckUtils]: 3: Hoare triple {1574#(<= |fibo1_#in~n| 0)} assume true; {1574#(<= |fibo1_#in~n| 0)} is VALID [2020-07-08 22:03:59,948 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {1574#(<= |fibo1_#in~n| 0)} {1562#(< 1 fibo2_~n)} #65#return; {1492#false} is VALID [2020-07-08 22:03:59,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:03:59,956 INFO L280 TraceCheckUtils]: 0: Hoare triple {1491#true} ~n := #in~n; {1491#true} is VALID [2020-07-08 22:03:59,956 INFO L280 TraceCheckUtils]: 1: Hoare triple {1491#true} assume ~n < 1; {1491#true} is VALID [2020-07-08 22:03:59,957 INFO L280 TraceCheckUtils]: 2: Hoare triple {1491#true} #res := 0; {1491#true} is VALID [2020-07-08 22:03:59,957 INFO L280 TraceCheckUtils]: 3: Hoare triple {1491#true} assume true; {1491#true} is VALID [2020-07-08 22:03:59,957 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {1491#true} {1492#false} #67#return; {1492#false} is VALID [2020-07-08 22:03:59,957 INFO L280 TraceCheckUtils]: 0: Hoare triple {1491#true} ~n := #in~n; {1491#true} is VALID [2020-07-08 22:03:59,960 INFO L280 TraceCheckUtils]: 1: Hoare triple {1491#true} assume !(~n < 1); {1561#(< 0 fibo2_~n)} is VALID [2020-07-08 22:03:59,961 INFO L280 TraceCheckUtils]: 2: Hoare triple {1561#(< 0 fibo2_~n)} assume !(1 == ~n); {1562#(< 1 fibo2_~n)} is VALID [2020-07-08 22:03:59,962 INFO L263 TraceCheckUtils]: 3: Hoare triple {1562#(< 1 fibo2_~n)} call #t~ret2 := fibo1(~n - 1); {1491#true} is VALID [2020-07-08 22:03:59,962 INFO L280 TraceCheckUtils]: 4: Hoare triple {1491#true} ~n := #in~n; {1573#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 22:03:59,963 INFO L280 TraceCheckUtils]: 5: Hoare triple {1573#(= fibo1_~n |fibo1_#in~n|)} assume ~n < 1; {1574#(<= |fibo1_#in~n| 0)} is VALID [2020-07-08 22:03:59,963 INFO L280 TraceCheckUtils]: 6: Hoare triple {1574#(<= |fibo1_#in~n| 0)} #res := 0; {1574#(<= |fibo1_#in~n| 0)} is VALID [2020-07-08 22:03:59,963 INFO L280 TraceCheckUtils]: 7: Hoare triple {1574#(<= |fibo1_#in~n| 0)} assume true; {1574#(<= |fibo1_#in~n| 0)} is VALID [2020-07-08 22:03:59,965 INFO L275 TraceCheckUtils]: 8: Hoare quadruple {1574#(<= |fibo1_#in~n| 0)} {1562#(< 1 fibo2_~n)} #65#return; {1492#false} is VALID [2020-07-08 22:03:59,965 INFO L280 TraceCheckUtils]: 9: Hoare triple {1492#false} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {1492#false} is VALID [2020-07-08 22:03:59,966 INFO L263 TraceCheckUtils]: 10: Hoare triple {1492#false} call #t~ret3 := fibo1(~n - 2); {1491#true} is VALID [2020-07-08 22:03:59,966 INFO L280 TraceCheckUtils]: 11: Hoare triple {1491#true} ~n := #in~n; {1491#true} is VALID [2020-07-08 22:03:59,966 INFO L280 TraceCheckUtils]: 12: Hoare triple {1491#true} assume ~n < 1; {1491#true} is VALID [2020-07-08 22:03:59,966 INFO L280 TraceCheckUtils]: 13: Hoare triple {1491#true} #res := 0; {1491#true} is VALID [2020-07-08 22:03:59,966 INFO L280 TraceCheckUtils]: 14: Hoare triple {1491#true} assume true; {1491#true} is VALID [2020-07-08 22:03:59,967 INFO L275 TraceCheckUtils]: 15: Hoare quadruple {1491#true} {1492#false} #67#return; {1492#false} is VALID [2020-07-08 22:03:59,967 INFO L280 TraceCheckUtils]: 16: Hoare triple {1492#false} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647; {1492#false} is VALID [2020-07-08 22:03:59,967 INFO L280 TraceCheckUtils]: 17: Hoare triple {1492#false} #res := #t~ret2 + #t~ret3; {1492#false} is VALID [2020-07-08 22:03:59,967 INFO L280 TraceCheckUtils]: 18: Hoare triple {1492#false} havoc #t~ret2; {1492#false} is VALID [2020-07-08 22:03:59,968 INFO L280 TraceCheckUtils]: 19: Hoare triple {1492#false} havoc #t~ret3; {1492#false} is VALID [2020-07-08 22:03:59,968 INFO L280 TraceCheckUtils]: 20: Hoare triple {1492#false} assume true; {1492#false} is VALID [2020-07-08 22:03:59,968 INFO L275 TraceCheckUtils]: 21: Hoare quadruple {1492#false} {1491#true} #69#return; {1492#false} is VALID [2020-07-08 22:03:59,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:03:59,975 INFO L280 TraceCheckUtils]: 0: Hoare triple {1491#true} ~n := #in~n; {1491#true} is VALID [2020-07-08 22:03:59,975 INFO L280 TraceCheckUtils]: 1: Hoare triple {1491#true} assume ~n < 1; {1491#true} is VALID [2020-07-08 22:03:59,975 INFO L280 TraceCheckUtils]: 2: Hoare triple {1491#true} #res := 0; {1491#true} is VALID [2020-07-08 22:03:59,976 INFO L280 TraceCheckUtils]: 3: Hoare triple {1491#true} assume true; {1491#true} is VALID [2020-07-08 22:03:59,976 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {1491#true} {1492#false} #71#return; {1492#false} is VALID [2020-07-08 22:03:59,976 INFO L280 TraceCheckUtils]: 0: Hoare triple {1491#true} ~n := #in~n; {1491#true} is VALID [2020-07-08 22:03:59,976 INFO L280 TraceCheckUtils]: 1: Hoare triple {1491#true} assume !(~n < 1); {1491#true} is VALID [2020-07-08 22:03:59,976 INFO L280 TraceCheckUtils]: 2: Hoare triple {1491#true} assume !(1 == ~n); {1491#true} is VALID [2020-07-08 22:03:59,977 INFO L263 TraceCheckUtils]: 3: Hoare triple {1491#true} call #t~ret0 := fibo2(~n - 1); {1491#true} is VALID [2020-07-08 22:03:59,977 INFO L280 TraceCheckUtils]: 4: Hoare triple {1491#true} ~n := #in~n; {1491#true} is VALID [2020-07-08 22:03:59,982 INFO L280 TraceCheckUtils]: 5: Hoare triple {1491#true} assume !(~n < 1); {1561#(< 0 fibo2_~n)} is VALID [2020-07-08 22:03:59,983 INFO L280 TraceCheckUtils]: 6: Hoare triple {1561#(< 0 fibo2_~n)} assume !(1 == ~n); {1562#(< 1 fibo2_~n)} is VALID [2020-07-08 22:03:59,983 INFO L263 TraceCheckUtils]: 7: Hoare triple {1562#(< 1 fibo2_~n)} call #t~ret2 := fibo1(~n - 1); {1491#true} is VALID [2020-07-08 22:03:59,984 INFO L280 TraceCheckUtils]: 8: Hoare triple {1491#true} ~n := #in~n; {1573#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 22:03:59,984 INFO L280 TraceCheckUtils]: 9: Hoare triple {1573#(= fibo1_~n |fibo1_#in~n|)} assume ~n < 1; {1574#(<= |fibo1_#in~n| 0)} is VALID [2020-07-08 22:03:59,985 INFO L280 TraceCheckUtils]: 10: Hoare triple {1574#(<= |fibo1_#in~n| 0)} #res := 0; {1574#(<= |fibo1_#in~n| 0)} is VALID [2020-07-08 22:03:59,985 INFO L280 TraceCheckUtils]: 11: Hoare triple {1574#(<= |fibo1_#in~n| 0)} assume true; {1574#(<= |fibo1_#in~n| 0)} is VALID [2020-07-08 22:03:59,987 INFO L275 TraceCheckUtils]: 12: Hoare quadruple {1574#(<= |fibo1_#in~n| 0)} {1562#(< 1 fibo2_~n)} #65#return; {1492#false} is VALID [2020-07-08 22:03:59,987 INFO L280 TraceCheckUtils]: 13: Hoare triple {1492#false} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {1492#false} is VALID [2020-07-08 22:03:59,987 INFO L263 TraceCheckUtils]: 14: Hoare triple {1492#false} call #t~ret3 := fibo1(~n - 2); {1491#true} is VALID [2020-07-08 22:03:59,987 INFO L280 TraceCheckUtils]: 15: Hoare triple {1491#true} ~n := #in~n; {1491#true} is VALID [2020-07-08 22:03:59,988 INFO L280 TraceCheckUtils]: 16: Hoare triple {1491#true} assume ~n < 1; {1491#true} is VALID [2020-07-08 22:03:59,988 INFO L280 TraceCheckUtils]: 17: Hoare triple {1491#true} #res := 0; {1491#true} is VALID [2020-07-08 22:03:59,999 INFO L280 TraceCheckUtils]: 18: Hoare triple {1491#true} assume true; {1491#true} is VALID [2020-07-08 22:03:59,999 INFO L275 TraceCheckUtils]: 19: Hoare quadruple {1491#true} {1492#false} #67#return; {1492#false} is VALID [2020-07-08 22:03:59,999 INFO L280 TraceCheckUtils]: 20: Hoare triple {1492#false} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647; {1492#false} is VALID [2020-07-08 22:04:00,000 INFO L280 TraceCheckUtils]: 21: Hoare triple {1492#false} #res := #t~ret2 + #t~ret3; {1492#false} is VALID [2020-07-08 22:04:00,000 INFO L280 TraceCheckUtils]: 22: Hoare triple {1492#false} havoc #t~ret2; {1492#false} is VALID [2020-07-08 22:04:00,000 INFO L280 TraceCheckUtils]: 23: Hoare triple {1492#false} havoc #t~ret3; {1492#false} is VALID [2020-07-08 22:04:00,000 INFO L280 TraceCheckUtils]: 24: Hoare triple {1492#false} assume true; {1492#false} is VALID [2020-07-08 22:04:00,000 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {1492#false} {1491#true} #69#return; {1492#false} is VALID [2020-07-08 22:04:00,001 INFO L280 TraceCheckUtils]: 26: Hoare triple {1492#false} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {1492#false} is VALID [2020-07-08 22:04:00,001 INFO L263 TraceCheckUtils]: 27: Hoare triple {1492#false} call #t~ret1 := fibo2(~n - 2); {1491#true} is VALID [2020-07-08 22:04:00,001 INFO L280 TraceCheckUtils]: 28: Hoare triple {1491#true} ~n := #in~n; {1491#true} is VALID [2020-07-08 22:04:00,001 INFO L280 TraceCheckUtils]: 29: Hoare triple {1491#true} assume ~n < 1; {1491#true} is VALID [2020-07-08 22:04:00,002 INFO L280 TraceCheckUtils]: 30: Hoare triple {1491#true} #res := 0; {1491#true} is VALID [2020-07-08 22:04:00,002 INFO L280 TraceCheckUtils]: 31: Hoare triple {1491#true} assume true; {1491#true} is VALID [2020-07-08 22:04:00,002 INFO L275 TraceCheckUtils]: 32: Hoare quadruple {1491#true} {1492#false} #71#return; {1492#false} is VALID [2020-07-08 22:04:00,003 INFO L280 TraceCheckUtils]: 33: Hoare triple {1492#false} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647; {1492#false} is VALID [2020-07-08 22:04:00,003 INFO L280 TraceCheckUtils]: 34: Hoare triple {1492#false} #res := #t~ret0 + #t~ret1; {1492#false} is VALID [2020-07-08 22:04:00,003 INFO L280 TraceCheckUtils]: 35: Hoare triple {1492#false} havoc #t~ret1; {1492#false} is VALID [2020-07-08 22:04:00,004 INFO L280 TraceCheckUtils]: 36: Hoare triple {1492#false} havoc #t~ret0; {1492#false} is VALID [2020-07-08 22:04:00,004 INFO L280 TraceCheckUtils]: 37: Hoare triple {1492#false} assume true; {1492#false} is VALID [2020-07-08 22:04:00,004 INFO L275 TraceCheckUtils]: 38: Hoare quadruple {1492#false} {1491#true} #63#return; {1492#false} is VALID [2020-07-08 22:04:00,006 INFO L263 TraceCheckUtils]: 0: Hoare triple {1491#true} call ULTIMATE.init(); {1491#true} is VALID [2020-07-08 22:04:00,006 INFO L280 TraceCheckUtils]: 1: Hoare triple {1491#true} assume true; {1491#true} is VALID [2020-07-08 22:04:00,006 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {1491#true} {1491#true} #59#return; {1491#true} is VALID [2020-07-08 22:04:00,006 INFO L263 TraceCheckUtils]: 3: Hoare triple {1491#true} call #t~ret5 := main(); {1491#true} is VALID [2020-07-08 22:04:00,006 INFO L280 TraceCheckUtils]: 4: Hoare triple {1491#true} ~x~0 := 4; {1491#true} is VALID [2020-07-08 22:04:00,007 INFO L263 TraceCheckUtils]: 5: Hoare triple {1491#true} call #t~ret4 := fibo1(~x~0); {1491#true} is VALID [2020-07-08 22:04:00,007 INFO L280 TraceCheckUtils]: 6: Hoare triple {1491#true} ~n := #in~n; {1491#true} is VALID [2020-07-08 22:04:00,007 INFO L280 TraceCheckUtils]: 7: Hoare triple {1491#true} assume !(~n < 1); {1491#true} is VALID [2020-07-08 22:04:00,007 INFO L280 TraceCheckUtils]: 8: Hoare triple {1491#true} assume !(1 == ~n); {1491#true} is VALID [2020-07-08 22:04:00,008 INFO L263 TraceCheckUtils]: 9: Hoare triple {1491#true} call #t~ret0 := fibo2(~n - 1); {1491#true} is VALID [2020-07-08 22:04:00,008 INFO L280 TraceCheckUtils]: 10: Hoare triple {1491#true} ~n := #in~n; {1491#true} is VALID [2020-07-08 22:04:00,014 INFO L280 TraceCheckUtils]: 11: Hoare triple {1491#true} assume !(~n < 1); {1561#(< 0 fibo2_~n)} is VALID [2020-07-08 22:04:00,015 INFO L280 TraceCheckUtils]: 12: Hoare triple {1561#(< 0 fibo2_~n)} assume !(1 == ~n); {1562#(< 1 fibo2_~n)} is VALID [2020-07-08 22:04:00,015 INFO L263 TraceCheckUtils]: 13: Hoare triple {1562#(< 1 fibo2_~n)} call #t~ret2 := fibo1(~n - 1); {1491#true} is VALID [2020-07-08 22:04:00,016 INFO L280 TraceCheckUtils]: 14: Hoare triple {1491#true} ~n := #in~n; {1573#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 22:04:00,017 INFO L280 TraceCheckUtils]: 15: Hoare triple {1573#(= fibo1_~n |fibo1_#in~n|)} assume ~n < 1; {1574#(<= |fibo1_#in~n| 0)} is VALID [2020-07-08 22:04:00,017 INFO L280 TraceCheckUtils]: 16: Hoare triple {1574#(<= |fibo1_#in~n| 0)} #res := 0; {1574#(<= |fibo1_#in~n| 0)} is VALID [2020-07-08 22:04:00,018 INFO L280 TraceCheckUtils]: 17: Hoare triple {1574#(<= |fibo1_#in~n| 0)} assume true; {1574#(<= |fibo1_#in~n| 0)} is VALID [2020-07-08 22:04:00,019 INFO L275 TraceCheckUtils]: 18: Hoare quadruple {1574#(<= |fibo1_#in~n| 0)} {1562#(< 1 fibo2_~n)} #65#return; {1492#false} is VALID [2020-07-08 22:04:00,019 INFO L280 TraceCheckUtils]: 19: Hoare triple {1492#false} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {1492#false} is VALID [2020-07-08 22:04:00,019 INFO L263 TraceCheckUtils]: 20: Hoare triple {1492#false} call #t~ret3 := fibo1(~n - 2); {1491#true} is VALID [2020-07-08 22:04:00,020 INFO L280 TraceCheckUtils]: 21: Hoare triple {1491#true} ~n := #in~n; {1491#true} is VALID [2020-07-08 22:04:00,020 INFO L280 TraceCheckUtils]: 22: Hoare triple {1491#true} assume ~n < 1; {1491#true} is VALID [2020-07-08 22:04:00,020 INFO L280 TraceCheckUtils]: 23: Hoare triple {1491#true} #res := 0; {1491#true} is VALID [2020-07-08 22:04:00,020 INFO L280 TraceCheckUtils]: 24: Hoare triple {1491#true} assume true; {1491#true} is VALID [2020-07-08 22:04:00,020 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {1491#true} {1492#false} #67#return; {1492#false} is VALID [2020-07-08 22:04:00,021 INFO L280 TraceCheckUtils]: 26: Hoare triple {1492#false} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647; {1492#false} is VALID [2020-07-08 22:04:00,021 INFO L280 TraceCheckUtils]: 27: Hoare triple {1492#false} #res := #t~ret2 + #t~ret3; {1492#false} is VALID [2020-07-08 22:04:00,021 INFO L280 TraceCheckUtils]: 28: Hoare triple {1492#false} havoc #t~ret2; {1492#false} is VALID [2020-07-08 22:04:00,021 INFO L280 TraceCheckUtils]: 29: Hoare triple {1492#false} havoc #t~ret3; {1492#false} is VALID [2020-07-08 22:04:00,022 INFO L280 TraceCheckUtils]: 30: Hoare triple {1492#false} assume true; {1492#false} is VALID [2020-07-08 22:04:00,022 INFO L275 TraceCheckUtils]: 31: Hoare quadruple {1492#false} {1491#true} #69#return; {1492#false} is VALID [2020-07-08 22:04:00,022 INFO L280 TraceCheckUtils]: 32: Hoare triple {1492#false} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {1492#false} is VALID [2020-07-08 22:04:00,022 INFO L263 TraceCheckUtils]: 33: Hoare triple {1492#false} call #t~ret1 := fibo2(~n - 2); {1491#true} is VALID [2020-07-08 22:04:00,022 INFO L280 TraceCheckUtils]: 34: Hoare triple {1491#true} ~n := #in~n; {1491#true} is VALID [2020-07-08 22:04:00,023 INFO L280 TraceCheckUtils]: 35: Hoare triple {1491#true} assume ~n < 1; {1491#true} is VALID [2020-07-08 22:04:00,023 INFO L280 TraceCheckUtils]: 36: Hoare triple {1491#true} #res := 0; {1491#true} is VALID [2020-07-08 22:04:00,023 INFO L280 TraceCheckUtils]: 37: Hoare triple {1491#true} assume true; {1491#true} is VALID [2020-07-08 22:04:00,023 INFO L275 TraceCheckUtils]: 38: Hoare quadruple {1491#true} {1492#false} #71#return; {1492#false} is VALID [2020-07-08 22:04:00,024 INFO L280 TraceCheckUtils]: 39: Hoare triple {1492#false} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647; {1492#false} is VALID [2020-07-08 22:04:00,024 INFO L280 TraceCheckUtils]: 40: Hoare triple {1492#false} #res := #t~ret0 + #t~ret1; {1492#false} is VALID [2020-07-08 22:04:00,024 INFO L280 TraceCheckUtils]: 41: Hoare triple {1492#false} havoc #t~ret1; {1492#false} is VALID [2020-07-08 22:04:00,024 INFO L280 TraceCheckUtils]: 42: Hoare triple {1492#false} havoc #t~ret0; {1492#false} is VALID [2020-07-08 22:04:00,024 INFO L280 TraceCheckUtils]: 43: Hoare triple {1492#false} assume true; {1492#false} is VALID [2020-07-08 22:04:00,025 INFO L275 TraceCheckUtils]: 44: Hoare quadruple {1492#false} {1491#true} #63#return; {1492#false} is VALID [2020-07-08 22:04:00,025 INFO L280 TraceCheckUtils]: 45: Hoare triple {1492#false} assume -2147483648 <= #t~ret4 && #t~ret4 <= 2147483647; {1492#false} is VALID [2020-07-08 22:04:00,025 INFO L280 TraceCheckUtils]: 46: Hoare triple {1492#false} ~result~0 := #t~ret4; {1492#false} is VALID [2020-07-08 22:04:00,025 INFO L280 TraceCheckUtils]: 47: Hoare triple {1492#false} havoc #t~ret4; {1492#false} is VALID [2020-07-08 22:04:00,026 INFO L280 TraceCheckUtils]: 48: Hoare triple {1492#false} assume 3 == ~result~0; {1492#false} is VALID [2020-07-08 22:04:00,026 INFO L280 TraceCheckUtils]: 49: Hoare triple {1492#false} assume !false; {1492#false} is VALID [2020-07-08 22:04:00,028 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-07-08 22:04:00,028 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [510293509] [2020-07-08 22:04:00,028 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-08 22:04:00,028 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-07-08 22:04:00,029 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701310155] [2020-07-08 22:04:00,029 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 50 [2020-07-08 22:04:00,030 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 22:04:00,030 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states. [2020-07-08 22:04:00,082 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 48 edges. 48 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:04:00,082 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-08 22:04:00,082 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 22:04:00,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-08 22:04:00,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-08 22:04:00,083 INFO L87 Difference]: Start difference. First operand 66 states and 83 transitions. Second operand 6 states. [2020-07-08 22:04:00,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:04:00,426 INFO L93 Difference]: Finished difference Result 130 states and 178 transitions. [2020-07-08 22:04:00,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-08 22:04:00,426 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 50 [2020-07-08 22:04:00,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 22:04:00,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-08 22:04:00,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 98 transitions. [2020-07-08 22:04:00,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-08 22:04:00,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 98 transitions. [2020-07-08 22:04:00,433 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 98 transitions. [2020-07-08 22:04:00,538 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 98 edges. 98 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:04:00,542 INFO L225 Difference]: With dead ends: 130 [2020-07-08 22:04:00,542 INFO L226 Difference]: Without dead ends: 70 [2020-07-08 22:04:00,544 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-07-08 22:04:00,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-07-08 22:04:00,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2020-07-08 22:04:00,644 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 22:04:00,645 INFO L82 GeneralOperation]: Start isEquivalent. First operand 70 states. Second operand 70 states. [2020-07-08 22:04:00,645 INFO L74 IsIncluded]: Start isIncluded. First operand 70 states. Second operand 70 states. [2020-07-08 22:04:00,645 INFO L87 Difference]: Start difference. First operand 70 states. Second operand 70 states. [2020-07-08 22:04:00,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:04:00,650 INFO L93 Difference]: Finished difference Result 70 states and 89 transitions. [2020-07-08 22:04:00,650 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 89 transitions. [2020-07-08 22:04:00,651 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:04:00,651 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:04:00,651 INFO L74 IsIncluded]: Start isIncluded. First operand 70 states. Second operand 70 states. [2020-07-08 22:04:00,651 INFO L87 Difference]: Start difference. First operand 70 states. Second operand 70 states. [2020-07-08 22:04:00,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:04:00,656 INFO L93 Difference]: Finished difference Result 70 states and 89 transitions. [2020-07-08 22:04:00,656 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 89 transitions. [2020-07-08 22:04:00,657 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:04:00,657 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:04:00,657 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 22:04:00,658 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 22:04:00,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-07-08 22:04:00,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 89 transitions. [2020-07-08 22:04:00,662 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 89 transitions. Word has length 50 [2020-07-08 22:04:00,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 22:04:00,663 INFO L479 AbstractCegarLoop]: Abstraction has 70 states and 89 transitions. [2020-07-08 22:04:00,663 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-08 22:04:00,663 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 70 states and 89 transitions. [2020-07-08 22:04:00,788 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 89 edges. 89 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:04:00,789 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 89 transitions. [2020-07-08 22:04:00,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-07-08 22:04:00,791 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 22:04:00,791 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 22:04:00,792 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-08 22:04:00,792 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 22:04:00,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 22:04:00,792 INFO L82 PathProgramCache]: Analyzing trace with hash 104828256, now seen corresponding path program 1 times [2020-07-08 22:04:00,793 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 22:04:00,793 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1066375762] [2020-07-08 22:04:00,793 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 22:04:00,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:04:00,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:04:00,840 INFO L280 TraceCheckUtils]: 0: Hoare triple {2119#true} assume true; {2119#true} is VALID [2020-07-08 22:04:00,841 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {2119#true} {2119#true} #59#return; {2119#true} is VALID [2020-07-08 22:04:00,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:04:00,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:04:00,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:04:00,961 INFO L280 TraceCheckUtils]: 0: Hoare triple {2119#true} ~n := #in~n; {2119#true} is VALID [2020-07-08 22:04:00,961 INFO L280 TraceCheckUtils]: 1: Hoare triple {2119#true} assume !(~n < 1); {2119#true} is VALID [2020-07-08 22:04:00,962 INFO L280 TraceCheckUtils]: 2: Hoare triple {2119#true} assume 1 == ~n; {2119#true} is VALID [2020-07-08 22:04:00,962 INFO L280 TraceCheckUtils]: 3: Hoare triple {2119#true} #res := 1; {2119#true} is VALID [2020-07-08 22:04:00,962 INFO L280 TraceCheckUtils]: 4: Hoare triple {2119#true} assume true; {2119#true} is VALID [2020-07-08 22:04:00,963 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {2119#true} {2195#(and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} #65#return; {2195#(and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} is VALID [2020-07-08 22:04:00,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:04:00,971 INFO L280 TraceCheckUtils]: 0: Hoare triple {2119#true} ~n := #in~n; {2119#true} is VALID [2020-07-08 22:04:00,972 INFO L280 TraceCheckUtils]: 1: Hoare triple {2119#true} assume ~n < 1; {2119#true} is VALID [2020-07-08 22:04:00,972 INFO L280 TraceCheckUtils]: 2: Hoare triple {2119#true} #res := 0; {2119#true} is VALID [2020-07-08 22:04:00,972 INFO L280 TraceCheckUtils]: 3: Hoare triple {2119#true} assume true; {2119#true} is VALID [2020-07-08 22:04:00,974 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {2119#true} {2195#(and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} #67#return; {2207#(<= 2 |fibo2_#in~n|)} is VALID [2020-07-08 22:04:00,975 INFO L280 TraceCheckUtils]: 0: Hoare triple {2119#true} ~n := #in~n; {2193#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 22:04:00,975 INFO L280 TraceCheckUtils]: 1: Hoare triple {2193#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {2194#(and (< 0 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} is VALID [2020-07-08 22:04:00,976 INFO L280 TraceCheckUtils]: 2: Hoare triple {2194#(and (< 0 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} assume !(1 == ~n); {2195#(and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} is VALID [2020-07-08 22:04:00,977 INFO L263 TraceCheckUtils]: 3: Hoare triple {2195#(and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} call #t~ret2 := fibo1(~n - 1); {2119#true} is VALID [2020-07-08 22:04:00,977 INFO L280 TraceCheckUtils]: 4: Hoare triple {2119#true} ~n := #in~n; {2119#true} is VALID [2020-07-08 22:04:00,977 INFO L280 TraceCheckUtils]: 5: Hoare triple {2119#true} assume !(~n < 1); {2119#true} is VALID [2020-07-08 22:04:00,977 INFO L280 TraceCheckUtils]: 6: Hoare triple {2119#true} assume 1 == ~n; {2119#true} is VALID [2020-07-08 22:04:00,978 INFO L280 TraceCheckUtils]: 7: Hoare triple {2119#true} #res := 1; {2119#true} is VALID [2020-07-08 22:04:00,978 INFO L280 TraceCheckUtils]: 8: Hoare triple {2119#true} assume true; {2119#true} is VALID [2020-07-08 22:04:00,979 INFO L275 TraceCheckUtils]: 9: Hoare quadruple {2119#true} {2195#(and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} #65#return; {2195#(and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} is VALID [2020-07-08 22:04:00,980 INFO L280 TraceCheckUtils]: 10: Hoare triple {2195#(and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {2195#(and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} is VALID [2020-07-08 22:04:00,980 INFO L263 TraceCheckUtils]: 11: Hoare triple {2195#(and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} call #t~ret3 := fibo1(~n - 2); {2119#true} is VALID [2020-07-08 22:04:00,980 INFO L280 TraceCheckUtils]: 12: Hoare triple {2119#true} ~n := #in~n; {2119#true} is VALID [2020-07-08 22:04:00,981 INFO L280 TraceCheckUtils]: 13: Hoare triple {2119#true} assume ~n < 1; {2119#true} is VALID [2020-07-08 22:04:00,981 INFO L280 TraceCheckUtils]: 14: Hoare triple {2119#true} #res := 0; {2119#true} is VALID [2020-07-08 22:04:00,981 INFO L280 TraceCheckUtils]: 15: Hoare triple {2119#true} assume true; {2119#true} is VALID [2020-07-08 22:04:00,982 INFO L275 TraceCheckUtils]: 16: Hoare quadruple {2119#true} {2195#(and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} #67#return; {2207#(<= 2 |fibo2_#in~n|)} is VALID [2020-07-08 22:04:00,983 INFO L280 TraceCheckUtils]: 17: Hoare triple {2207#(<= 2 |fibo2_#in~n|)} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647; {2207#(<= 2 |fibo2_#in~n|)} is VALID [2020-07-08 22:04:00,984 INFO L280 TraceCheckUtils]: 18: Hoare triple {2207#(<= 2 |fibo2_#in~n|)} #res := #t~ret2 + #t~ret3; {2207#(<= 2 |fibo2_#in~n|)} is VALID [2020-07-08 22:04:00,984 INFO L280 TraceCheckUtils]: 19: Hoare triple {2207#(<= 2 |fibo2_#in~n|)} havoc #t~ret2; {2207#(<= 2 |fibo2_#in~n|)} is VALID [2020-07-08 22:04:00,985 INFO L280 TraceCheckUtils]: 20: Hoare triple {2207#(<= 2 |fibo2_#in~n|)} havoc #t~ret3; {2207#(<= 2 |fibo2_#in~n|)} is VALID [2020-07-08 22:04:00,985 INFO L280 TraceCheckUtils]: 21: Hoare triple {2207#(<= 2 |fibo2_#in~n|)} assume true; {2207#(<= 2 |fibo2_#in~n|)} is VALID [2020-07-08 22:04:00,987 INFO L275 TraceCheckUtils]: 22: Hoare quadruple {2207#(<= 2 |fibo2_#in~n|)} {2119#true} #69#return; {2187#(<= 3 fibo1_~n)} is VALID [2020-07-08 22:04:00,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:04:01,010 INFO L280 TraceCheckUtils]: 0: Hoare triple {2119#true} ~n := #in~n; {2193#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 22:04:01,011 INFO L280 TraceCheckUtils]: 1: Hoare triple {2193#(= fibo2_~n |fibo2_#in~n|)} assume ~n < 1; {2208#(<= |fibo2_#in~n| 0)} is VALID [2020-07-08 22:04:01,012 INFO L280 TraceCheckUtils]: 2: Hoare triple {2208#(<= |fibo2_#in~n| 0)} #res := 0; {2208#(<= |fibo2_#in~n| 0)} is VALID [2020-07-08 22:04:01,012 INFO L280 TraceCheckUtils]: 3: Hoare triple {2208#(<= |fibo2_#in~n| 0)} assume true; {2208#(<= |fibo2_#in~n| 0)} is VALID [2020-07-08 22:04:01,014 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {2208#(<= |fibo2_#in~n| 0)} {2187#(<= 3 fibo1_~n)} #71#return; {2120#false} is VALID [2020-07-08 22:04:01,014 INFO L280 TraceCheckUtils]: 0: Hoare triple {2119#true} ~n := #in~n; {2119#true} is VALID [2020-07-08 22:04:01,014 INFO L280 TraceCheckUtils]: 1: Hoare triple {2119#true} assume !(~n < 1); {2119#true} is VALID [2020-07-08 22:04:01,015 INFO L280 TraceCheckUtils]: 2: Hoare triple {2119#true} assume !(1 == ~n); {2119#true} is VALID [2020-07-08 22:04:01,015 INFO L263 TraceCheckUtils]: 3: Hoare triple {2119#true} call #t~ret0 := fibo2(~n - 1); {2119#true} is VALID [2020-07-08 22:04:01,015 INFO L280 TraceCheckUtils]: 4: Hoare triple {2119#true} ~n := #in~n; {2193#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 22:04:01,016 INFO L280 TraceCheckUtils]: 5: Hoare triple {2193#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {2194#(and (< 0 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} is VALID [2020-07-08 22:04:01,017 INFO L280 TraceCheckUtils]: 6: Hoare triple {2194#(and (< 0 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} assume !(1 == ~n); {2195#(and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} is VALID [2020-07-08 22:04:01,017 INFO L263 TraceCheckUtils]: 7: Hoare triple {2195#(and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} call #t~ret2 := fibo1(~n - 1); {2119#true} is VALID [2020-07-08 22:04:01,018 INFO L280 TraceCheckUtils]: 8: Hoare triple {2119#true} ~n := #in~n; {2119#true} is VALID [2020-07-08 22:04:01,018 INFO L280 TraceCheckUtils]: 9: Hoare triple {2119#true} assume !(~n < 1); {2119#true} is VALID [2020-07-08 22:04:01,018 INFO L280 TraceCheckUtils]: 10: Hoare triple {2119#true} assume 1 == ~n; {2119#true} is VALID [2020-07-08 22:04:01,018 INFO L280 TraceCheckUtils]: 11: Hoare triple {2119#true} #res := 1; {2119#true} is VALID [2020-07-08 22:04:01,019 INFO L280 TraceCheckUtils]: 12: Hoare triple {2119#true} assume true; {2119#true} is VALID [2020-07-08 22:04:01,020 INFO L275 TraceCheckUtils]: 13: Hoare quadruple {2119#true} {2195#(and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} #65#return; {2195#(and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} is VALID [2020-07-08 22:04:01,020 INFO L280 TraceCheckUtils]: 14: Hoare triple {2195#(and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {2195#(and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} is VALID [2020-07-08 22:04:01,021 INFO L263 TraceCheckUtils]: 15: Hoare triple {2195#(and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} call #t~ret3 := fibo1(~n - 2); {2119#true} is VALID [2020-07-08 22:04:01,021 INFO L280 TraceCheckUtils]: 16: Hoare triple {2119#true} ~n := #in~n; {2119#true} is VALID [2020-07-08 22:04:01,021 INFO L280 TraceCheckUtils]: 17: Hoare triple {2119#true} assume ~n < 1; {2119#true} is VALID [2020-07-08 22:04:01,022 INFO L280 TraceCheckUtils]: 18: Hoare triple {2119#true} #res := 0; {2119#true} is VALID [2020-07-08 22:04:01,022 INFO L280 TraceCheckUtils]: 19: Hoare triple {2119#true} assume true; {2119#true} is VALID [2020-07-08 22:04:01,023 INFO L275 TraceCheckUtils]: 20: Hoare quadruple {2119#true} {2195#(and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} #67#return; {2207#(<= 2 |fibo2_#in~n|)} is VALID [2020-07-08 22:04:01,024 INFO L280 TraceCheckUtils]: 21: Hoare triple {2207#(<= 2 |fibo2_#in~n|)} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647; {2207#(<= 2 |fibo2_#in~n|)} is VALID [2020-07-08 22:04:01,025 INFO L280 TraceCheckUtils]: 22: Hoare triple {2207#(<= 2 |fibo2_#in~n|)} #res := #t~ret2 + #t~ret3; {2207#(<= 2 |fibo2_#in~n|)} is VALID [2020-07-08 22:04:01,025 INFO L280 TraceCheckUtils]: 23: Hoare triple {2207#(<= 2 |fibo2_#in~n|)} havoc #t~ret2; {2207#(<= 2 |fibo2_#in~n|)} is VALID [2020-07-08 22:04:01,026 INFO L280 TraceCheckUtils]: 24: Hoare triple {2207#(<= 2 |fibo2_#in~n|)} havoc #t~ret3; {2207#(<= 2 |fibo2_#in~n|)} is VALID [2020-07-08 22:04:01,027 INFO L280 TraceCheckUtils]: 25: Hoare triple {2207#(<= 2 |fibo2_#in~n|)} assume true; {2207#(<= 2 |fibo2_#in~n|)} is VALID [2020-07-08 22:04:01,028 INFO L275 TraceCheckUtils]: 26: Hoare quadruple {2207#(<= 2 |fibo2_#in~n|)} {2119#true} #69#return; {2187#(<= 3 fibo1_~n)} is VALID [2020-07-08 22:04:01,029 INFO L280 TraceCheckUtils]: 27: Hoare triple {2187#(<= 3 fibo1_~n)} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {2187#(<= 3 fibo1_~n)} is VALID [2020-07-08 22:04:01,029 INFO L263 TraceCheckUtils]: 28: Hoare triple {2187#(<= 3 fibo1_~n)} call #t~ret1 := fibo2(~n - 2); {2119#true} is VALID [2020-07-08 22:04:01,030 INFO L280 TraceCheckUtils]: 29: Hoare triple {2119#true} ~n := #in~n; {2193#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 22:04:01,031 INFO L280 TraceCheckUtils]: 30: Hoare triple {2193#(= fibo2_~n |fibo2_#in~n|)} assume ~n < 1; {2208#(<= |fibo2_#in~n| 0)} is VALID [2020-07-08 22:04:01,031 INFO L280 TraceCheckUtils]: 31: Hoare triple {2208#(<= |fibo2_#in~n| 0)} #res := 0; {2208#(<= |fibo2_#in~n| 0)} is VALID [2020-07-08 22:04:01,032 INFO L280 TraceCheckUtils]: 32: Hoare triple {2208#(<= |fibo2_#in~n| 0)} assume true; {2208#(<= |fibo2_#in~n| 0)} is VALID [2020-07-08 22:04:01,033 INFO L275 TraceCheckUtils]: 33: Hoare quadruple {2208#(<= |fibo2_#in~n| 0)} {2187#(<= 3 fibo1_~n)} #71#return; {2120#false} is VALID [2020-07-08 22:04:01,034 INFO L280 TraceCheckUtils]: 34: Hoare triple {2120#false} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647; {2120#false} is VALID [2020-07-08 22:04:01,034 INFO L280 TraceCheckUtils]: 35: Hoare triple {2120#false} #res := #t~ret0 + #t~ret1; {2120#false} is VALID [2020-07-08 22:04:01,034 INFO L280 TraceCheckUtils]: 36: Hoare triple {2120#false} havoc #t~ret1; {2120#false} is VALID [2020-07-08 22:04:01,034 INFO L280 TraceCheckUtils]: 37: Hoare triple {2120#false} havoc #t~ret0; {2120#false} is VALID [2020-07-08 22:04:01,035 INFO L280 TraceCheckUtils]: 38: Hoare triple {2120#false} assume true; {2120#false} is VALID [2020-07-08 22:04:01,035 INFO L275 TraceCheckUtils]: 39: Hoare quadruple {2120#false} {2123#(<= 4 main_~x~0)} #63#return; {2120#false} is VALID [2020-07-08 22:04:01,037 INFO L263 TraceCheckUtils]: 0: Hoare triple {2119#true} call ULTIMATE.init(); {2119#true} is VALID [2020-07-08 22:04:01,037 INFO L280 TraceCheckUtils]: 1: Hoare triple {2119#true} assume true; {2119#true} is VALID [2020-07-08 22:04:01,038 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {2119#true} {2119#true} #59#return; {2119#true} is VALID [2020-07-08 22:04:01,038 INFO L263 TraceCheckUtils]: 3: Hoare triple {2119#true} call #t~ret5 := main(); {2119#true} is VALID [2020-07-08 22:04:01,042 INFO L280 TraceCheckUtils]: 4: Hoare triple {2119#true} ~x~0 := 4; {2123#(<= 4 main_~x~0)} is VALID [2020-07-08 22:04:01,043 INFO L263 TraceCheckUtils]: 5: Hoare triple {2123#(<= 4 main_~x~0)} call #t~ret4 := fibo1(~x~0); {2119#true} is VALID [2020-07-08 22:04:01,043 INFO L280 TraceCheckUtils]: 6: Hoare triple {2119#true} ~n := #in~n; {2119#true} is VALID [2020-07-08 22:04:01,043 INFO L280 TraceCheckUtils]: 7: Hoare triple {2119#true} assume !(~n < 1); {2119#true} is VALID [2020-07-08 22:04:01,043 INFO L280 TraceCheckUtils]: 8: Hoare triple {2119#true} assume !(1 == ~n); {2119#true} is VALID [2020-07-08 22:04:01,043 INFO L263 TraceCheckUtils]: 9: Hoare triple {2119#true} call #t~ret0 := fibo2(~n - 1); {2119#true} is VALID [2020-07-08 22:04:01,044 INFO L280 TraceCheckUtils]: 10: Hoare triple {2119#true} ~n := #in~n; {2193#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 22:04:01,045 INFO L280 TraceCheckUtils]: 11: Hoare triple {2193#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {2194#(and (< 0 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} is VALID [2020-07-08 22:04:01,045 INFO L280 TraceCheckUtils]: 12: Hoare triple {2194#(and (< 0 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} assume !(1 == ~n); {2195#(and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} is VALID [2020-07-08 22:04:01,045 INFO L263 TraceCheckUtils]: 13: Hoare triple {2195#(and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} call #t~ret2 := fibo1(~n - 1); {2119#true} is VALID [2020-07-08 22:04:01,046 INFO L280 TraceCheckUtils]: 14: Hoare triple {2119#true} ~n := #in~n; {2119#true} is VALID [2020-07-08 22:04:01,046 INFO L280 TraceCheckUtils]: 15: Hoare triple {2119#true} assume !(~n < 1); {2119#true} is VALID [2020-07-08 22:04:01,046 INFO L280 TraceCheckUtils]: 16: Hoare triple {2119#true} assume 1 == ~n; {2119#true} is VALID [2020-07-08 22:04:01,046 INFO L280 TraceCheckUtils]: 17: Hoare triple {2119#true} #res := 1; {2119#true} is VALID [2020-07-08 22:04:01,046 INFO L280 TraceCheckUtils]: 18: Hoare triple {2119#true} assume true; {2119#true} is VALID [2020-07-08 22:04:01,047 INFO L275 TraceCheckUtils]: 19: Hoare quadruple {2119#true} {2195#(and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} #65#return; {2195#(and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} is VALID [2020-07-08 22:04:01,048 INFO L280 TraceCheckUtils]: 20: Hoare triple {2195#(and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {2195#(and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} is VALID [2020-07-08 22:04:01,048 INFO L263 TraceCheckUtils]: 21: Hoare triple {2195#(and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} call #t~ret3 := fibo1(~n - 2); {2119#true} is VALID [2020-07-08 22:04:01,048 INFO L280 TraceCheckUtils]: 22: Hoare triple {2119#true} ~n := #in~n; {2119#true} is VALID [2020-07-08 22:04:01,048 INFO L280 TraceCheckUtils]: 23: Hoare triple {2119#true} assume ~n < 1; {2119#true} is VALID [2020-07-08 22:04:01,048 INFO L280 TraceCheckUtils]: 24: Hoare triple {2119#true} #res := 0; {2119#true} is VALID [2020-07-08 22:04:01,049 INFO L280 TraceCheckUtils]: 25: Hoare triple {2119#true} assume true; {2119#true} is VALID [2020-07-08 22:04:01,054 INFO L275 TraceCheckUtils]: 26: Hoare quadruple {2119#true} {2195#(and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|))} #67#return; {2207#(<= 2 |fibo2_#in~n|)} is VALID [2020-07-08 22:04:01,055 INFO L280 TraceCheckUtils]: 27: Hoare triple {2207#(<= 2 |fibo2_#in~n|)} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647; {2207#(<= 2 |fibo2_#in~n|)} is VALID [2020-07-08 22:04:01,056 INFO L280 TraceCheckUtils]: 28: Hoare triple {2207#(<= 2 |fibo2_#in~n|)} #res := #t~ret2 + #t~ret3; {2207#(<= 2 |fibo2_#in~n|)} is VALID [2020-07-08 22:04:01,056 INFO L280 TraceCheckUtils]: 29: Hoare triple {2207#(<= 2 |fibo2_#in~n|)} havoc #t~ret2; {2207#(<= 2 |fibo2_#in~n|)} is VALID [2020-07-08 22:04:01,057 INFO L280 TraceCheckUtils]: 30: Hoare triple {2207#(<= 2 |fibo2_#in~n|)} havoc #t~ret3; {2207#(<= 2 |fibo2_#in~n|)} is VALID [2020-07-08 22:04:01,057 INFO L280 TraceCheckUtils]: 31: Hoare triple {2207#(<= 2 |fibo2_#in~n|)} assume true; {2207#(<= 2 |fibo2_#in~n|)} is VALID [2020-07-08 22:04:01,059 INFO L275 TraceCheckUtils]: 32: Hoare quadruple {2207#(<= 2 |fibo2_#in~n|)} {2119#true} #69#return; {2187#(<= 3 fibo1_~n)} is VALID [2020-07-08 22:04:01,060 INFO L280 TraceCheckUtils]: 33: Hoare triple {2187#(<= 3 fibo1_~n)} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {2187#(<= 3 fibo1_~n)} is VALID [2020-07-08 22:04:01,060 INFO L263 TraceCheckUtils]: 34: Hoare triple {2187#(<= 3 fibo1_~n)} call #t~ret1 := fibo2(~n - 2); {2119#true} is VALID [2020-07-08 22:04:01,061 INFO L280 TraceCheckUtils]: 35: Hoare triple {2119#true} ~n := #in~n; {2193#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 22:04:01,062 INFO L280 TraceCheckUtils]: 36: Hoare triple {2193#(= fibo2_~n |fibo2_#in~n|)} assume ~n < 1; {2208#(<= |fibo2_#in~n| 0)} is VALID [2020-07-08 22:04:01,063 INFO L280 TraceCheckUtils]: 37: Hoare triple {2208#(<= |fibo2_#in~n| 0)} #res := 0; {2208#(<= |fibo2_#in~n| 0)} is VALID [2020-07-08 22:04:01,064 INFO L280 TraceCheckUtils]: 38: Hoare triple {2208#(<= |fibo2_#in~n| 0)} assume true; {2208#(<= |fibo2_#in~n| 0)} is VALID [2020-07-08 22:04:01,066 INFO L275 TraceCheckUtils]: 39: Hoare quadruple {2208#(<= |fibo2_#in~n| 0)} {2187#(<= 3 fibo1_~n)} #71#return; {2120#false} is VALID [2020-07-08 22:04:01,066 INFO L280 TraceCheckUtils]: 40: Hoare triple {2120#false} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647; {2120#false} is VALID [2020-07-08 22:04:01,067 INFO L280 TraceCheckUtils]: 41: Hoare triple {2120#false} #res := #t~ret0 + #t~ret1; {2120#false} is VALID [2020-07-08 22:04:01,067 INFO L280 TraceCheckUtils]: 42: Hoare triple {2120#false} havoc #t~ret1; {2120#false} is VALID [2020-07-08 22:04:01,067 INFO L280 TraceCheckUtils]: 43: Hoare triple {2120#false} havoc #t~ret0; {2120#false} is VALID [2020-07-08 22:04:01,068 INFO L280 TraceCheckUtils]: 44: Hoare triple {2120#false} assume true; {2120#false} is VALID [2020-07-08 22:04:01,068 INFO L275 TraceCheckUtils]: 45: Hoare quadruple {2120#false} {2123#(<= 4 main_~x~0)} #63#return; {2120#false} is VALID [2020-07-08 22:04:01,068 INFO L280 TraceCheckUtils]: 46: Hoare triple {2120#false} assume -2147483648 <= #t~ret4 && #t~ret4 <= 2147483647; {2120#false} is VALID [2020-07-08 22:04:01,069 INFO L280 TraceCheckUtils]: 47: Hoare triple {2120#false} ~result~0 := #t~ret4; {2120#false} is VALID [2020-07-08 22:04:01,069 INFO L280 TraceCheckUtils]: 48: Hoare triple {2120#false} havoc #t~ret4; {2120#false} is VALID [2020-07-08 22:04:01,069 INFO L280 TraceCheckUtils]: 49: Hoare triple {2120#false} assume 3 == ~result~0; {2120#false} is VALID [2020-07-08 22:04:01,070 INFO L280 TraceCheckUtils]: 50: Hoare triple {2120#false} assume !false; {2120#false} is VALID [2020-07-08 22:04:01,074 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 22:04:01,076 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1066375762] [2020-07-08 22:04:01,077 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-08 22:04:01,077 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-07-08 22:04:01,077 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21817188] [2020-07-08 22:04:01,078 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 51 [2020-07-08 22:04:01,078 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 22:04:01,078 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states. [2020-07-08 22:04:01,139 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 46 edges. 46 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:04:01,140 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-08 22:04:01,140 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 22:04:01,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-08 22:04:01,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-07-08 22:04:01,141 INFO L87 Difference]: Start difference. First operand 70 states and 89 transitions. Second operand 9 states. [2020-07-08 22:04:01,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:04:01,764 INFO L93 Difference]: Finished difference Result 142 states and 197 transitions. [2020-07-08 22:04:01,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-08 22:04:01,764 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 51 [2020-07-08 22:04:01,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 22:04:01,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-07-08 22:04:01,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 108 transitions. [2020-07-08 22:04:01,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-07-08 22:04:01,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 108 transitions. [2020-07-08 22:04:01,777 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 8 states and 108 transitions. [2020-07-08 22:04:01,900 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 108 edges. 108 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:04:01,904 INFO L225 Difference]: With dead ends: 142 [2020-07-08 22:04:01,905 INFO L226 Difference]: Without dead ends: 78 [2020-07-08 22:04:01,907 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-07-08 22:04:01,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2020-07-08 22:04:02,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 72. [2020-07-08 22:04:02,020 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 22:04:02,021 INFO L82 GeneralOperation]: Start isEquivalent. First operand 78 states. Second operand 72 states. [2020-07-08 22:04:02,021 INFO L74 IsIncluded]: Start isIncluded. First operand 78 states. Second operand 72 states. [2020-07-08 22:04:02,021 INFO L87 Difference]: Start difference. First operand 78 states. Second operand 72 states. [2020-07-08 22:04:02,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:04:02,026 INFO L93 Difference]: Finished difference Result 78 states and 101 transitions. [2020-07-08 22:04:02,026 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 101 transitions. [2020-07-08 22:04:02,027 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:04:02,028 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:04:02,028 INFO L74 IsIncluded]: Start isIncluded. First operand 72 states. Second operand 78 states. [2020-07-08 22:04:02,028 INFO L87 Difference]: Start difference. First operand 72 states. Second operand 78 states. [2020-07-08 22:04:02,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:04:02,033 INFO L93 Difference]: Finished difference Result 78 states and 101 transitions. [2020-07-08 22:04:02,033 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 101 transitions. [2020-07-08 22:04:02,034 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:04:02,034 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:04:02,034 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 22:04:02,034 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 22:04:02,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-07-08 22:04:02,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 92 transitions. [2020-07-08 22:04:02,038 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 92 transitions. Word has length 51 [2020-07-08 22:04:02,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 22:04:02,039 INFO L479 AbstractCegarLoop]: Abstraction has 72 states and 92 transitions. [2020-07-08 22:04:02,039 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-08 22:04:02,039 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 72 states and 92 transitions. [2020-07-08 22:04:02,151 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 92 edges. 92 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:04:02,151 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 92 transitions. [2020-07-08 22:04:02,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-08 22:04:02,153 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 22:04:02,153 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 22:04:02,153 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-08 22:04:02,153 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 22:04:02,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 22:04:02,154 INFO L82 PathProgramCache]: Analyzing trace with hash 1703786405, now seen corresponding path program 1 times [2020-07-08 22:04:02,154 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 22:04:02,154 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [5637748] [2020-07-08 22:04:02,154 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 22:04:02,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:04:02,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:04:02,207 INFO L280 TraceCheckUtils]: 0: Hoare triple {2797#true} assume true; {2797#true} is VALID [2020-07-08 22:04:02,207 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {2797#true} {2797#true} #59#return; {2797#true} is VALID [2020-07-08 22:04:02,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:04:02,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:04:02,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:04:02,327 INFO L280 TraceCheckUtils]: 0: Hoare triple {2797#true} ~n := #in~n; {2843#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 22:04:02,327 INFO L280 TraceCheckUtils]: 1: Hoare triple {2843#(= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {2843#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 22:04:02,328 INFO L280 TraceCheckUtils]: 2: Hoare triple {2843#(= fibo1_~n |fibo1_#in~n|)} assume 1 == ~n; {2889#(<= |fibo1_#in~n| 1)} is VALID [2020-07-08 22:04:02,328 INFO L280 TraceCheckUtils]: 3: Hoare triple {2889#(<= |fibo1_#in~n| 1)} #res := 1; {2889#(<= |fibo1_#in~n| 1)} is VALID [2020-07-08 22:04:02,329 INFO L280 TraceCheckUtils]: 4: Hoare triple {2889#(<= |fibo1_#in~n| 1)} assume true; {2889#(<= |fibo1_#in~n| 1)} is VALID [2020-07-08 22:04:02,330 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {2889#(<= |fibo1_#in~n| 1)} {2875#(= fibo2_~n |fibo2_#in~n|)} #65#return; {2882#(and (<= fibo2_~n 2) (= fibo2_~n |fibo2_#in~n|))} is VALID [2020-07-08 22:04:02,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:04:02,337 INFO L280 TraceCheckUtils]: 0: Hoare triple {2797#true} ~n := #in~n; {2797#true} is VALID [2020-07-08 22:04:02,337 INFO L280 TraceCheckUtils]: 1: Hoare triple {2797#true} assume ~n < 1; {2797#true} is VALID [2020-07-08 22:04:02,338 INFO L280 TraceCheckUtils]: 2: Hoare triple {2797#true} #res := 0; {2797#true} is VALID [2020-07-08 22:04:02,338 INFO L280 TraceCheckUtils]: 3: Hoare triple {2797#true} assume true; {2797#true} is VALID [2020-07-08 22:04:02,339 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {2797#true} {2882#(and (<= fibo2_~n 2) (= fibo2_~n |fibo2_#in~n|))} #67#return; {2888#(<= |fibo2_#in~n| 2)} is VALID [2020-07-08 22:04:02,340 INFO L280 TraceCheckUtils]: 0: Hoare triple {2797#true} ~n := #in~n; {2875#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 22:04:02,340 INFO L280 TraceCheckUtils]: 1: Hoare triple {2875#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {2875#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 22:04:02,341 INFO L280 TraceCheckUtils]: 2: Hoare triple {2875#(= fibo2_~n |fibo2_#in~n|)} assume !(1 == ~n); {2875#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 22:04:02,341 INFO L263 TraceCheckUtils]: 3: Hoare triple {2875#(= fibo2_~n |fibo2_#in~n|)} call #t~ret2 := fibo1(~n - 1); {2797#true} is VALID [2020-07-08 22:04:02,342 INFO L280 TraceCheckUtils]: 4: Hoare triple {2797#true} ~n := #in~n; {2843#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 22:04:02,342 INFO L280 TraceCheckUtils]: 5: Hoare triple {2843#(= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {2843#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 22:04:02,343 INFO L280 TraceCheckUtils]: 6: Hoare triple {2843#(= fibo1_~n |fibo1_#in~n|)} assume 1 == ~n; {2889#(<= |fibo1_#in~n| 1)} is VALID [2020-07-08 22:04:02,343 INFO L280 TraceCheckUtils]: 7: Hoare triple {2889#(<= |fibo1_#in~n| 1)} #res := 1; {2889#(<= |fibo1_#in~n| 1)} is VALID [2020-07-08 22:04:02,344 INFO L280 TraceCheckUtils]: 8: Hoare triple {2889#(<= |fibo1_#in~n| 1)} assume true; {2889#(<= |fibo1_#in~n| 1)} is VALID [2020-07-08 22:04:02,345 INFO L275 TraceCheckUtils]: 9: Hoare quadruple {2889#(<= |fibo1_#in~n| 1)} {2875#(= fibo2_~n |fibo2_#in~n|)} #65#return; {2882#(and (<= fibo2_~n 2) (= fibo2_~n |fibo2_#in~n|))} is VALID [2020-07-08 22:04:02,346 INFO L280 TraceCheckUtils]: 10: Hoare triple {2882#(and (<= fibo2_~n 2) (= fibo2_~n |fibo2_#in~n|))} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {2882#(and (<= fibo2_~n 2) (= fibo2_~n |fibo2_#in~n|))} is VALID [2020-07-08 22:04:02,346 INFO L263 TraceCheckUtils]: 11: Hoare triple {2882#(and (<= fibo2_~n 2) (= fibo2_~n |fibo2_#in~n|))} call #t~ret3 := fibo1(~n - 2); {2797#true} is VALID [2020-07-08 22:04:02,346 INFO L280 TraceCheckUtils]: 12: Hoare triple {2797#true} ~n := #in~n; {2797#true} is VALID [2020-07-08 22:04:02,346 INFO L280 TraceCheckUtils]: 13: Hoare triple {2797#true} assume ~n < 1; {2797#true} is VALID [2020-07-08 22:04:02,347 INFO L280 TraceCheckUtils]: 14: Hoare triple {2797#true} #res := 0; {2797#true} is VALID [2020-07-08 22:04:02,347 INFO L280 TraceCheckUtils]: 15: Hoare triple {2797#true} assume true; {2797#true} is VALID [2020-07-08 22:04:02,348 INFO L275 TraceCheckUtils]: 16: Hoare quadruple {2797#true} {2882#(and (<= fibo2_~n 2) (= fibo2_~n |fibo2_#in~n|))} #67#return; {2888#(<= |fibo2_#in~n| 2)} is VALID [2020-07-08 22:04:02,356 INFO L280 TraceCheckUtils]: 17: Hoare triple {2888#(<= |fibo2_#in~n| 2)} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647; {2888#(<= |fibo2_#in~n| 2)} is VALID [2020-07-08 22:04:02,357 INFO L280 TraceCheckUtils]: 18: Hoare triple {2888#(<= |fibo2_#in~n| 2)} #res := #t~ret2 + #t~ret3; {2888#(<= |fibo2_#in~n| 2)} is VALID [2020-07-08 22:04:02,357 INFO L280 TraceCheckUtils]: 19: Hoare triple {2888#(<= |fibo2_#in~n| 2)} havoc #t~ret2; {2888#(<= |fibo2_#in~n| 2)} is VALID [2020-07-08 22:04:02,358 INFO L280 TraceCheckUtils]: 20: Hoare triple {2888#(<= |fibo2_#in~n| 2)} havoc #t~ret3; {2888#(<= |fibo2_#in~n| 2)} is VALID [2020-07-08 22:04:02,358 INFO L280 TraceCheckUtils]: 21: Hoare triple {2888#(<= |fibo2_#in~n| 2)} assume true; {2888#(<= |fibo2_#in~n| 2)} is VALID [2020-07-08 22:04:02,359 INFO L275 TraceCheckUtils]: 22: Hoare quadruple {2888#(<= |fibo2_#in~n| 2)} {2843#(= fibo1_~n |fibo1_#in~n|)} #69#return; {2867#(and (<= fibo1_~n 3) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 22:04:02,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:04:02,374 INFO L280 TraceCheckUtils]: 0: Hoare triple {2797#true} ~n := #in~n; {2797#true} is VALID [2020-07-08 22:04:02,375 INFO L280 TraceCheckUtils]: 1: Hoare triple {2797#true} assume !(~n < 1); {2797#true} is VALID [2020-07-08 22:04:02,375 INFO L280 TraceCheckUtils]: 2: Hoare triple {2797#true} assume 1 == ~n; {2797#true} is VALID [2020-07-08 22:04:02,375 INFO L280 TraceCheckUtils]: 3: Hoare triple {2797#true} #res := 1; {2797#true} is VALID [2020-07-08 22:04:02,375 INFO L280 TraceCheckUtils]: 4: Hoare triple {2797#true} assume true; {2797#true} is VALID [2020-07-08 22:04:02,376 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {2797#true} {2867#(and (<= fibo1_~n 3) (= fibo1_~n |fibo1_#in~n|))} #71#return; {2874#(<= |fibo1_#in~n| 3)} is VALID [2020-07-08 22:04:02,377 INFO L280 TraceCheckUtils]: 0: Hoare triple {2797#true} ~n := #in~n; {2843#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 22:04:02,377 INFO L280 TraceCheckUtils]: 1: Hoare triple {2843#(= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {2843#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 22:04:02,378 INFO L280 TraceCheckUtils]: 2: Hoare triple {2843#(= fibo1_~n |fibo1_#in~n|)} assume !(1 == ~n); {2843#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 22:04:02,378 INFO L263 TraceCheckUtils]: 3: Hoare triple {2843#(= fibo1_~n |fibo1_#in~n|)} call #t~ret0 := fibo2(~n - 1); {2797#true} is VALID [2020-07-08 22:04:02,379 INFO L280 TraceCheckUtils]: 4: Hoare triple {2797#true} ~n := #in~n; {2875#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 22:04:02,379 INFO L280 TraceCheckUtils]: 5: Hoare triple {2875#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {2875#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 22:04:02,380 INFO L280 TraceCheckUtils]: 6: Hoare triple {2875#(= fibo2_~n |fibo2_#in~n|)} assume !(1 == ~n); {2875#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 22:04:02,380 INFO L263 TraceCheckUtils]: 7: Hoare triple {2875#(= fibo2_~n |fibo2_#in~n|)} call #t~ret2 := fibo1(~n - 1); {2797#true} is VALID [2020-07-08 22:04:02,381 INFO L280 TraceCheckUtils]: 8: Hoare triple {2797#true} ~n := #in~n; {2843#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 22:04:02,381 INFO L280 TraceCheckUtils]: 9: Hoare triple {2843#(= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {2843#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 22:04:02,382 INFO L280 TraceCheckUtils]: 10: Hoare triple {2843#(= fibo1_~n |fibo1_#in~n|)} assume 1 == ~n; {2889#(<= |fibo1_#in~n| 1)} is VALID [2020-07-08 22:04:02,382 INFO L280 TraceCheckUtils]: 11: Hoare triple {2889#(<= |fibo1_#in~n| 1)} #res := 1; {2889#(<= |fibo1_#in~n| 1)} is VALID [2020-07-08 22:04:02,383 INFO L280 TraceCheckUtils]: 12: Hoare triple {2889#(<= |fibo1_#in~n| 1)} assume true; {2889#(<= |fibo1_#in~n| 1)} is VALID [2020-07-08 22:04:02,384 INFO L275 TraceCheckUtils]: 13: Hoare quadruple {2889#(<= |fibo1_#in~n| 1)} {2875#(= fibo2_~n |fibo2_#in~n|)} #65#return; {2882#(and (<= fibo2_~n 2) (= fibo2_~n |fibo2_#in~n|))} is VALID [2020-07-08 22:04:02,385 INFO L280 TraceCheckUtils]: 14: Hoare triple {2882#(and (<= fibo2_~n 2) (= fibo2_~n |fibo2_#in~n|))} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {2882#(and (<= fibo2_~n 2) (= fibo2_~n |fibo2_#in~n|))} is VALID [2020-07-08 22:04:02,385 INFO L263 TraceCheckUtils]: 15: Hoare triple {2882#(and (<= fibo2_~n 2) (= fibo2_~n |fibo2_#in~n|))} call #t~ret3 := fibo1(~n - 2); {2797#true} is VALID [2020-07-08 22:04:02,385 INFO L280 TraceCheckUtils]: 16: Hoare triple {2797#true} ~n := #in~n; {2797#true} is VALID [2020-07-08 22:04:02,386 INFO L280 TraceCheckUtils]: 17: Hoare triple {2797#true} assume ~n < 1; {2797#true} is VALID [2020-07-08 22:04:02,386 INFO L280 TraceCheckUtils]: 18: Hoare triple {2797#true} #res := 0; {2797#true} is VALID [2020-07-08 22:04:02,386 INFO L280 TraceCheckUtils]: 19: Hoare triple {2797#true} assume true; {2797#true} is VALID [2020-07-08 22:04:02,390 INFO L275 TraceCheckUtils]: 20: Hoare quadruple {2797#true} {2882#(and (<= fibo2_~n 2) (= fibo2_~n |fibo2_#in~n|))} #67#return; {2888#(<= |fibo2_#in~n| 2)} is VALID [2020-07-08 22:04:02,391 INFO L280 TraceCheckUtils]: 21: Hoare triple {2888#(<= |fibo2_#in~n| 2)} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647; {2888#(<= |fibo2_#in~n| 2)} is VALID [2020-07-08 22:04:02,391 INFO L280 TraceCheckUtils]: 22: Hoare triple {2888#(<= |fibo2_#in~n| 2)} #res := #t~ret2 + #t~ret3; {2888#(<= |fibo2_#in~n| 2)} is VALID [2020-07-08 22:04:02,392 INFO L280 TraceCheckUtils]: 23: Hoare triple {2888#(<= |fibo2_#in~n| 2)} havoc #t~ret2; {2888#(<= |fibo2_#in~n| 2)} is VALID [2020-07-08 22:04:02,396 INFO L280 TraceCheckUtils]: 24: Hoare triple {2888#(<= |fibo2_#in~n| 2)} havoc #t~ret3; {2888#(<= |fibo2_#in~n| 2)} is VALID [2020-07-08 22:04:02,402 INFO L280 TraceCheckUtils]: 25: Hoare triple {2888#(<= |fibo2_#in~n| 2)} assume true; {2888#(<= |fibo2_#in~n| 2)} is VALID [2020-07-08 22:04:02,406 INFO L275 TraceCheckUtils]: 26: Hoare quadruple {2888#(<= |fibo2_#in~n| 2)} {2843#(= fibo1_~n |fibo1_#in~n|)} #69#return; {2867#(and (<= fibo1_~n 3) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 22:04:02,410 INFO L280 TraceCheckUtils]: 27: Hoare triple {2867#(and (<= fibo1_~n 3) (= fibo1_~n |fibo1_#in~n|))} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {2867#(and (<= fibo1_~n 3) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 22:04:02,410 INFO L263 TraceCheckUtils]: 28: Hoare triple {2867#(and (<= fibo1_~n 3) (= fibo1_~n |fibo1_#in~n|))} call #t~ret1 := fibo2(~n - 2); {2797#true} is VALID [2020-07-08 22:04:02,410 INFO L280 TraceCheckUtils]: 29: Hoare triple {2797#true} ~n := #in~n; {2797#true} is VALID [2020-07-08 22:04:02,410 INFO L280 TraceCheckUtils]: 30: Hoare triple {2797#true} assume !(~n < 1); {2797#true} is VALID [2020-07-08 22:04:02,411 INFO L280 TraceCheckUtils]: 31: Hoare triple {2797#true} assume 1 == ~n; {2797#true} is VALID [2020-07-08 22:04:02,411 INFO L280 TraceCheckUtils]: 32: Hoare triple {2797#true} #res := 1; {2797#true} is VALID [2020-07-08 22:04:02,411 INFO L280 TraceCheckUtils]: 33: Hoare triple {2797#true} assume true; {2797#true} is VALID [2020-07-08 22:04:02,412 INFO L275 TraceCheckUtils]: 34: Hoare quadruple {2797#true} {2867#(and (<= fibo1_~n 3) (= fibo1_~n |fibo1_#in~n|))} #71#return; {2874#(<= |fibo1_#in~n| 3)} is VALID [2020-07-08 22:04:02,415 INFO L280 TraceCheckUtils]: 35: Hoare triple {2874#(<= |fibo1_#in~n| 3)} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647; {2874#(<= |fibo1_#in~n| 3)} is VALID [2020-07-08 22:04:02,415 INFO L280 TraceCheckUtils]: 36: Hoare triple {2874#(<= |fibo1_#in~n| 3)} #res := #t~ret0 + #t~ret1; {2874#(<= |fibo1_#in~n| 3)} is VALID [2020-07-08 22:04:02,416 INFO L280 TraceCheckUtils]: 37: Hoare triple {2874#(<= |fibo1_#in~n| 3)} havoc #t~ret1; {2874#(<= |fibo1_#in~n| 3)} is VALID [2020-07-08 22:04:02,416 INFO L280 TraceCheckUtils]: 38: Hoare triple {2874#(<= |fibo1_#in~n| 3)} havoc #t~ret0; {2874#(<= |fibo1_#in~n| 3)} is VALID [2020-07-08 22:04:02,417 INFO L280 TraceCheckUtils]: 39: Hoare triple {2874#(<= |fibo1_#in~n| 3)} assume true; {2874#(<= |fibo1_#in~n| 3)} is VALID [2020-07-08 22:04:02,418 INFO L275 TraceCheckUtils]: 40: Hoare quadruple {2874#(<= |fibo1_#in~n| 3)} {2801#(<= 4 main_~x~0)} #63#return; {2798#false} is VALID [2020-07-08 22:04:02,420 INFO L263 TraceCheckUtils]: 0: Hoare triple {2797#true} call ULTIMATE.init(); {2797#true} is VALID [2020-07-08 22:04:02,420 INFO L280 TraceCheckUtils]: 1: Hoare triple {2797#true} assume true; {2797#true} is VALID [2020-07-08 22:04:02,420 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {2797#true} {2797#true} #59#return; {2797#true} is VALID [2020-07-08 22:04:02,420 INFO L263 TraceCheckUtils]: 3: Hoare triple {2797#true} call #t~ret5 := main(); {2797#true} is VALID [2020-07-08 22:04:02,421 INFO L280 TraceCheckUtils]: 4: Hoare triple {2797#true} ~x~0 := 4; {2801#(<= 4 main_~x~0)} is VALID [2020-07-08 22:04:02,421 INFO L263 TraceCheckUtils]: 5: Hoare triple {2801#(<= 4 main_~x~0)} call #t~ret4 := fibo1(~x~0); {2797#true} is VALID [2020-07-08 22:04:02,422 INFO L280 TraceCheckUtils]: 6: Hoare triple {2797#true} ~n := #in~n; {2843#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 22:04:02,422 INFO L280 TraceCheckUtils]: 7: Hoare triple {2843#(= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {2843#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 22:04:02,423 INFO L280 TraceCheckUtils]: 8: Hoare triple {2843#(= fibo1_~n |fibo1_#in~n|)} assume !(1 == ~n); {2843#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 22:04:02,423 INFO L263 TraceCheckUtils]: 9: Hoare triple {2843#(= fibo1_~n |fibo1_#in~n|)} call #t~ret0 := fibo2(~n - 1); {2797#true} is VALID [2020-07-08 22:04:02,423 INFO L280 TraceCheckUtils]: 10: Hoare triple {2797#true} ~n := #in~n; {2875#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 22:04:02,424 INFO L280 TraceCheckUtils]: 11: Hoare triple {2875#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {2875#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 22:04:02,424 INFO L280 TraceCheckUtils]: 12: Hoare triple {2875#(= fibo2_~n |fibo2_#in~n|)} assume !(1 == ~n); {2875#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 22:04:02,425 INFO L263 TraceCheckUtils]: 13: Hoare triple {2875#(= fibo2_~n |fibo2_#in~n|)} call #t~ret2 := fibo1(~n - 1); {2797#true} is VALID [2020-07-08 22:04:02,425 INFO L280 TraceCheckUtils]: 14: Hoare triple {2797#true} ~n := #in~n; {2843#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 22:04:02,426 INFO L280 TraceCheckUtils]: 15: Hoare triple {2843#(= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {2843#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 22:04:02,426 INFO L280 TraceCheckUtils]: 16: Hoare triple {2843#(= fibo1_~n |fibo1_#in~n|)} assume 1 == ~n; {2889#(<= |fibo1_#in~n| 1)} is VALID [2020-07-08 22:04:02,427 INFO L280 TraceCheckUtils]: 17: Hoare triple {2889#(<= |fibo1_#in~n| 1)} #res := 1; {2889#(<= |fibo1_#in~n| 1)} is VALID [2020-07-08 22:04:02,427 INFO L280 TraceCheckUtils]: 18: Hoare triple {2889#(<= |fibo1_#in~n| 1)} assume true; {2889#(<= |fibo1_#in~n| 1)} is VALID [2020-07-08 22:04:02,428 INFO L275 TraceCheckUtils]: 19: Hoare quadruple {2889#(<= |fibo1_#in~n| 1)} {2875#(= fibo2_~n |fibo2_#in~n|)} #65#return; {2882#(and (<= fibo2_~n 2) (= fibo2_~n |fibo2_#in~n|))} is VALID [2020-07-08 22:04:02,429 INFO L280 TraceCheckUtils]: 20: Hoare triple {2882#(and (<= fibo2_~n 2) (= fibo2_~n |fibo2_#in~n|))} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {2882#(and (<= fibo2_~n 2) (= fibo2_~n |fibo2_#in~n|))} is VALID [2020-07-08 22:04:02,429 INFO L263 TraceCheckUtils]: 21: Hoare triple {2882#(and (<= fibo2_~n 2) (= fibo2_~n |fibo2_#in~n|))} call #t~ret3 := fibo1(~n - 2); {2797#true} is VALID [2020-07-08 22:04:02,429 INFO L280 TraceCheckUtils]: 22: Hoare triple {2797#true} ~n := #in~n; {2797#true} is VALID [2020-07-08 22:04:02,429 INFO L280 TraceCheckUtils]: 23: Hoare triple {2797#true} assume ~n < 1; {2797#true} is VALID [2020-07-08 22:04:02,429 INFO L280 TraceCheckUtils]: 24: Hoare triple {2797#true} #res := 0; {2797#true} is VALID [2020-07-08 22:04:02,430 INFO L280 TraceCheckUtils]: 25: Hoare triple {2797#true} assume true; {2797#true} is VALID [2020-07-08 22:04:02,430 INFO L275 TraceCheckUtils]: 26: Hoare quadruple {2797#true} {2882#(and (<= fibo2_~n 2) (= fibo2_~n |fibo2_#in~n|))} #67#return; {2888#(<= |fibo2_#in~n| 2)} is VALID [2020-07-08 22:04:02,431 INFO L280 TraceCheckUtils]: 27: Hoare triple {2888#(<= |fibo2_#in~n| 2)} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647; {2888#(<= |fibo2_#in~n| 2)} is VALID [2020-07-08 22:04:02,431 INFO L280 TraceCheckUtils]: 28: Hoare triple {2888#(<= |fibo2_#in~n| 2)} #res := #t~ret2 + #t~ret3; {2888#(<= |fibo2_#in~n| 2)} is VALID [2020-07-08 22:04:02,431 INFO L280 TraceCheckUtils]: 29: Hoare triple {2888#(<= |fibo2_#in~n| 2)} havoc #t~ret2; {2888#(<= |fibo2_#in~n| 2)} is VALID [2020-07-08 22:04:02,432 INFO L280 TraceCheckUtils]: 30: Hoare triple {2888#(<= |fibo2_#in~n| 2)} havoc #t~ret3; {2888#(<= |fibo2_#in~n| 2)} is VALID [2020-07-08 22:04:02,432 INFO L280 TraceCheckUtils]: 31: Hoare triple {2888#(<= |fibo2_#in~n| 2)} assume true; {2888#(<= |fibo2_#in~n| 2)} is VALID [2020-07-08 22:04:02,433 INFO L275 TraceCheckUtils]: 32: Hoare quadruple {2888#(<= |fibo2_#in~n| 2)} {2843#(= fibo1_~n |fibo1_#in~n|)} #69#return; {2867#(and (<= fibo1_~n 3) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 22:04:02,433 INFO L280 TraceCheckUtils]: 33: Hoare triple {2867#(and (<= fibo1_~n 3) (= fibo1_~n |fibo1_#in~n|))} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {2867#(and (<= fibo1_~n 3) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 22:04:02,434 INFO L263 TraceCheckUtils]: 34: Hoare triple {2867#(and (<= fibo1_~n 3) (= fibo1_~n |fibo1_#in~n|))} call #t~ret1 := fibo2(~n - 2); {2797#true} is VALID [2020-07-08 22:04:02,434 INFO L280 TraceCheckUtils]: 35: Hoare triple {2797#true} ~n := #in~n; {2797#true} is VALID [2020-07-08 22:04:02,434 INFO L280 TraceCheckUtils]: 36: Hoare triple {2797#true} assume !(~n < 1); {2797#true} is VALID [2020-07-08 22:04:02,434 INFO L280 TraceCheckUtils]: 37: Hoare triple {2797#true} assume 1 == ~n; {2797#true} is VALID [2020-07-08 22:04:02,434 INFO L280 TraceCheckUtils]: 38: Hoare triple {2797#true} #res := 1; {2797#true} is VALID [2020-07-08 22:04:02,434 INFO L280 TraceCheckUtils]: 39: Hoare triple {2797#true} assume true; {2797#true} is VALID [2020-07-08 22:04:02,435 INFO L275 TraceCheckUtils]: 40: Hoare quadruple {2797#true} {2867#(and (<= fibo1_~n 3) (= fibo1_~n |fibo1_#in~n|))} #71#return; {2874#(<= |fibo1_#in~n| 3)} is VALID [2020-07-08 22:04:02,435 INFO L280 TraceCheckUtils]: 41: Hoare triple {2874#(<= |fibo1_#in~n| 3)} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647; {2874#(<= |fibo1_#in~n| 3)} is VALID [2020-07-08 22:04:02,436 INFO L280 TraceCheckUtils]: 42: Hoare triple {2874#(<= |fibo1_#in~n| 3)} #res := #t~ret0 + #t~ret1; {2874#(<= |fibo1_#in~n| 3)} is VALID [2020-07-08 22:04:02,436 INFO L280 TraceCheckUtils]: 43: Hoare triple {2874#(<= |fibo1_#in~n| 3)} havoc #t~ret1; {2874#(<= |fibo1_#in~n| 3)} is VALID [2020-07-08 22:04:02,436 INFO L280 TraceCheckUtils]: 44: Hoare triple {2874#(<= |fibo1_#in~n| 3)} havoc #t~ret0; {2874#(<= |fibo1_#in~n| 3)} is VALID [2020-07-08 22:04:02,437 INFO L280 TraceCheckUtils]: 45: Hoare triple {2874#(<= |fibo1_#in~n| 3)} assume true; {2874#(<= |fibo1_#in~n| 3)} is VALID [2020-07-08 22:04:02,438 INFO L275 TraceCheckUtils]: 46: Hoare quadruple {2874#(<= |fibo1_#in~n| 3)} {2801#(<= 4 main_~x~0)} #63#return; {2798#false} is VALID [2020-07-08 22:04:02,438 INFO L280 TraceCheckUtils]: 47: Hoare triple {2798#false} assume -2147483648 <= #t~ret4 && #t~ret4 <= 2147483647; {2798#false} is VALID [2020-07-08 22:04:02,438 INFO L280 TraceCheckUtils]: 48: Hoare triple {2798#false} ~result~0 := #t~ret4; {2798#false} is VALID [2020-07-08 22:04:02,438 INFO L280 TraceCheckUtils]: 49: Hoare triple {2798#false} havoc #t~ret4; {2798#false} is VALID [2020-07-08 22:04:02,438 INFO L280 TraceCheckUtils]: 50: Hoare triple {2798#false} assume 3 == ~result~0; {2798#false} is VALID [2020-07-08 22:04:02,438 INFO L280 TraceCheckUtils]: 51: Hoare triple {2798#false} assume !false; {2798#false} is VALID [2020-07-08 22:04:02,440 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-07-08 22:04:02,440 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [5637748] [2020-07-08 22:04:02,440 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-08 22:04:02,440 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-07-08 22:04:02,441 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796772294] [2020-07-08 22:04:02,441 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 52 [2020-07-08 22:04:02,441 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 22:04:02,441 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 10 states. [2020-07-08 22:04:02,497 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 50 edges. 50 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:04:02,498 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-08 22:04:02,498 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 22:04:02,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-08 22:04:02,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-07-08 22:04:02,499 INFO L87 Difference]: Start difference. First operand 72 states and 92 transitions. Second operand 10 states. [2020-07-08 22:04:03,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:04:03,483 INFO L93 Difference]: Finished difference Result 118 states and 158 transitions. [2020-07-08 22:04:03,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-08 22:04:03,483 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 52 [2020-07-08 22:04:03,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 22:04:03,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-07-08 22:04:03,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 96 transitions. [2020-07-08 22:04:03,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-07-08 22:04:03,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 96 transitions. [2020-07-08 22:04:03,490 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 10 states and 96 transitions. [2020-07-08 22:04:03,630 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 96 edges. 96 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:04:03,635 INFO L225 Difference]: With dead ends: 118 [2020-07-08 22:04:03,640 INFO L226 Difference]: Without dead ends: 112 [2020-07-08 22:04:03,643 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-07-08 22:04:03,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-07-08 22:04:03,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 106. [2020-07-08 22:04:03,855 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 22:04:03,856 INFO L82 GeneralOperation]: Start isEquivalent. First operand 112 states. Second operand 106 states. [2020-07-08 22:04:03,856 INFO L74 IsIncluded]: Start isIncluded. First operand 112 states. Second operand 106 states. [2020-07-08 22:04:03,856 INFO L87 Difference]: Start difference. First operand 112 states. Second operand 106 states. [2020-07-08 22:04:03,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:04:03,864 INFO L93 Difference]: Finished difference Result 112 states and 152 transitions. [2020-07-08 22:04:03,864 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 152 transitions. [2020-07-08 22:04:03,865 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:04:03,865 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:04:03,865 INFO L74 IsIncluded]: Start isIncluded. First operand 106 states. Second operand 112 states. [2020-07-08 22:04:03,866 INFO L87 Difference]: Start difference. First operand 106 states. Second operand 112 states. [2020-07-08 22:04:03,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:04:03,873 INFO L93 Difference]: Finished difference Result 112 states and 152 transitions. [2020-07-08 22:04:03,873 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 152 transitions. [2020-07-08 22:04:03,874 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:04:03,874 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:04:03,875 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 22:04:03,875 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 22:04:03,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-07-08 22:04:03,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 145 transitions. [2020-07-08 22:04:03,881 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 145 transitions. Word has length 52 [2020-07-08 22:04:03,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 22:04:03,881 INFO L479 AbstractCegarLoop]: Abstraction has 106 states and 145 transitions. [2020-07-08 22:04:03,881 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-08 22:04:03,882 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 106 states and 145 transitions. [2020-07-08 22:04:04,078 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 145 edges. 145 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:04:04,078 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 145 transitions. [2020-07-08 22:04:04,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-07-08 22:04:04,080 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 22:04:04,081 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 22:04:04,081 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-08 22:04:04,081 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 22:04:04,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 22:04:04,082 INFO L82 PathProgramCache]: Analyzing trace with hash -521446491, now seen corresponding path program 1 times [2020-07-08 22:04:04,082 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 22:04:04,083 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1670232516] [2020-07-08 22:04:04,083 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 22:04:04,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:04:04,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:04:04,131 INFO L280 TraceCheckUtils]: 0: Hoare triple {3567#true} assume true; {3567#true} is VALID [2020-07-08 22:04:04,131 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {3567#true} {3567#true} #59#return; {3567#true} is VALID [2020-07-08 22:04:04,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:04:04,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:04:04,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:04:04,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:04:04,250 INFO L280 TraceCheckUtils]: 0: Hoare triple {3567#true} ~n := #in~n; {3567#true} is VALID [2020-07-08 22:04:04,250 INFO L280 TraceCheckUtils]: 1: Hoare triple {3567#true} assume !(~n < 1); {3567#true} is VALID [2020-07-08 22:04:04,250 INFO L280 TraceCheckUtils]: 2: Hoare triple {3567#true} assume 1 == ~n; {3567#true} is VALID [2020-07-08 22:04:04,251 INFO L280 TraceCheckUtils]: 3: Hoare triple {3567#true} #res := 1; {3567#true} is VALID [2020-07-08 22:04:04,251 INFO L280 TraceCheckUtils]: 4: Hoare triple {3567#true} assume true; {3567#true} is VALID [2020-07-08 22:04:04,252 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {3567#true} {3707#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} #69#return; {3707#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 22:04:04,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:04:04,258 INFO L280 TraceCheckUtils]: 0: Hoare triple {3567#true} ~n := #in~n; {3567#true} is VALID [2020-07-08 22:04:04,258 INFO L280 TraceCheckUtils]: 1: Hoare triple {3567#true} assume ~n < 1; {3567#true} is VALID [2020-07-08 22:04:04,258 INFO L280 TraceCheckUtils]: 2: Hoare triple {3567#true} #res := 0; {3567#true} is VALID [2020-07-08 22:04:04,258 INFO L280 TraceCheckUtils]: 3: Hoare triple {3567#true} assume true; {3567#true} is VALID [2020-07-08 22:04:04,260 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {3567#true} {3707#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} #71#return; {3719#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 22:04:04,261 INFO L280 TraceCheckUtils]: 0: Hoare triple {3567#true} ~n := #in~n; {3705#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 22:04:04,262 INFO L280 TraceCheckUtils]: 1: Hoare triple {3705#(= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {3706#(and (< 0 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 22:04:04,263 INFO L280 TraceCheckUtils]: 2: Hoare triple {3706#(and (< 0 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} assume !(1 == ~n); {3707#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 22:04:04,263 INFO L263 TraceCheckUtils]: 3: Hoare triple {3707#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} call #t~ret0 := fibo2(~n - 1); {3567#true} is VALID [2020-07-08 22:04:04,263 INFO L280 TraceCheckUtils]: 4: Hoare triple {3567#true} ~n := #in~n; {3567#true} is VALID [2020-07-08 22:04:04,264 INFO L280 TraceCheckUtils]: 5: Hoare triple {3567#true} assume !(~n < 1); {3567#true} is VALID [2020-07-08 22:04:04,264 INFO L280 TraceCheckUtils]: 6: Hoare triple {3567#true} assume 1 == ~n; {3567#true} is VALID [2020-07-08 22:04:04,264 INFO L280 TraceCheckUtils]: 7: Hoare triple {3567#true} #res := 1; {3567#true} is VALID [2020-07-08 22:04:04,264 INFO L280 TraceCheckUtils]: 8: Hoare triple {3567#true} assume true; {3567#true} is VALID [2020-07-08 22:04:04,265 INFO L275 TraceCheckUtils]: 9: Hoare quadruple {3567#true} {3707#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} #69#return; {3707#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 22:04:04,266 INFO L280 TraceCheckUtils]: 10: Hoare triple {3707#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {3707#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 22:04:04,266 INFO L263 TraceCheckUtils]: 11: Hoare triple {3707#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} call #t~ret1 := fibo2(~n - 2); {3567#true} is VALID [2020-07-08 22:04:04,266 INFO L280 TraceCheckUtils]: 12: Hoare triple {3567#true} ~n := #in~n; {3567#true} is VALID [2020-07-08 22:04:04,267 INFO L280 TraceCheckUtils]: 13: Hoare triple {3567#true} assume ~n < 1; {3567#true} is VALID [2020-07-08 22:04:04,267 INFO L280 TraceCheckUtils]: 14: Hoare triple {3567#true} #res := 0; {3567#true} is VALID [2020-07-08 22:04:04,267 INFO L280 TraceCheckUtils]: 15: Hoare triple {3567#true} assume true; {3567#true} is VALID [2020-07-08 22:04:04,268 INFO L275 TraceCheckUtils]: 16: Hoare quadruple {3567#true} {3707#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} #71#return; {3719#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 22:04:04,269 INFO L280 TraceCheckUtils]: 17: Hoare triple {3719#(<= 2 |fibo1_#in~n|)} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647; {3719#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 22:04:04,270 INFO L280 TraceCheckUtils]: 18: Hoare triple {3719#(<= 2 |fibo1_#in~n|)} #res := #t~ret0 + #t~ret1; {3719#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 22:04:04,271 INFO L280 TraceCheckUtils]: 19: Hoare triple {3719#(<= 2 |fibo1_#in~n|)} havoc #t~ret1; {3719#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 22:04:04,271 INFO L280 TraceCheckUtils]: 20: Hoare triple {3719#(<= 2 |fibo1_#in~n|)} havoc #t~ret0; {3719#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 22:04:04,272 INFO L280 TraceCheckUtils]: 21: Hoare triple {3719#(<= 2 |fibo1_#in~n|)} assume true; {3719#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 22:04:04,274 INFO L275 TraceCheckUtils]: 22: Hoare quadruple {3719#(<= 2 |fibo1_#in~n|)} {3567#true} #65#return; {3699#(<= 3 fibo2_~n)} is VALID [2020-07-08 22:04:04,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:04:04,294 INFO L280 TraceCheckUtils]: 0: Hoare triple {3567#true} ~n := #in~n; {3705#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 22:04:04,295 INFO L280 TraceCheckUtils]: 1: Hoare triple {3705#(= fibo1_~n |fibo1_#in~n|)} assume ~n < 1; {3720#(<= |fibo1_#in~n| 0)} is VALID [2020-07-08 22:04:04,296 INFO L280 TraceCheckUtils]: 2: Hoare triple {3720#(<= |fibo1_#in~n| 0)} #res := 0; {3720#(<= |fibo1_#in~n| 0)} is VALID [2020-07-08 22:04:04,296 INFO L280 TraceCheckUtils]: 3: Hoare triple {3720#(<= |fibo1_#in~n| 0)} assume true; {3720#(<= |fibo1_#in~n| 0)} is VALID [2020-07-08 22:04:04,297 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {3720#(<= |fibo1_#in~n| 0)} {3699#(<= 3 fibo2_~n)} #67#return; {3568#false} is VALID [2020-07-08 22:04:04,298 INFO L280 TraceCheckUtils]: 0: Hoare triple {3567#true} ~n := #in~n; {3567#true} is VALID [2020-07-08 22:04:04,298 INFO L280 TraceCheckUtils]: 1: Hoare triple {3567#true} assume !(~n < 1); {3567#true} is VALID [2020-07-08 22:04:04,298 INFO L280 TraceCheckUtils]: 2: Hoare triple {3567#true} assume !(1 == ~n); {3567#true} is VALID [2020-07-08 22:04:04,299 INFO L263 TraceCheckUtils]: 3: Hoare triple {3567#true} call #t~ret2 := fibo1(~n - 1); {3567#true} is VALID [2020-07-08 22:04:04,299 INFO L280 TraceCheckUtils]: 4: Hoare triple {3567#true} ~n := #in~n; {3705#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 22:04:04,300 INFO L280 TraceCheckUtils]: 5: Hoare triple {3705#(= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {3706#(and (< 0 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 22:04:04,301 INFO L280 TraceCheckUtils]: 6: Hoare triple {3706#(and (< 0 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} assume !(1 == ~n); {3707#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 22:04:04,301 INFO L263 TraceCheckUtils]: 7: Hoare triple {3707#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} call #t~ret0 := fibo2(~n - 1); {3567#true} is VALID [2020-07-08 22:04:04,301 INFO L280 TraceCheckUtils]: 8: Hoare triple {3567#true} ~n := #in~n; {3567#true} is VALID [2020-07-08 22:04:04,302 INFO L280 TraceCheckUtils]: 9: Hoare triple {3567#true} assume !(~n < 1); {3567#true} is VALID [2020-07-08 22:04:04,302 INFO L280 TraceCheckUtils]: 10: Hoare triple {3567#true} assume 1 == ~n; {3567#true} is VALID [2020-07-08 22:04:04,302 INFO L280 TraceCheckUtils]: 11: Hoare triple {3567#true} #res := 1; {3567#true} is VALID [2020-07-08 22:04:04,302 INFO L280 TraceCheckUtils]: 12: Hoare triple {3567#true} assume true; {3567#true} is VALID [2020-07-08 22:04:04,303 INFO L275 TraceCheckUtils]: 13: Hoare quadruple {3567#true} {3707#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} #69#return; {3707#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 22:04:04,304 INFO L280 TraceCheckUtils]: 14: Hoare triple {3707#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {3707#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 22:04:04,305 INFO L263 TraceCheckUtils]: 15: Hoare triple {3707#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} call #t~ret1 := fibo2(~n - 2); {3567#true} is VALID [2020-07-08 22:04:04,305 INFO L280 TraceCheckUtils]: 16: Hoare triple {3567#true} ~n := #in~n; {3567#true} is VALID [2020-07-08 22:04:04,305 INFO L280 TraceCheckUtils]: 17: Hoare triple {3567#true} assume ~n < 1; {3567#true} is VALID [2020-07-08 22:04:04,306 INFO L280 TraceCheckUtils]: 18: Hoare triple {3567#true} #res := 0; {3567#true} is VALID [2020-07-08 22:04:04,306 INFO L280 TraceCheckUtils]: 19: Hoare triple {3567#true} assume true; {3567#true} is VALID [2020-07-08 22:04:04,307 INFO L275 TraceCheckUtils]: 20: Hoare quadruple {3567#true} {3707#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} #71#return; {3719#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 22:04:04,308 INFO L280 TraceCheckUtils]: 21: Hoare triple {3719#(<= 2 |fibo1_#in~n|)} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647; {3719#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 22:04:04,309 INFO L280 TraceCheckUtils]: 22: Hoare triple {3719#(<= 2 |fibo1_#in~n|)} #res := #t~ret0 + #t~ret1; {3719#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 22:04:04,309 INFO L280 TraceCheckUtils]: 23: Hoare triple {3719#(<= 2 |fibo1_#in~n|)} havoc #t~ret1; {3719#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 22:04:04,310 INFO L280 TraceCheckUtils]: 24: Hoare triple {3719#(<= 2 |fibo1_#in~n|)} havoc #t~ret0; {3719#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 22:04:04,310 INFO L280 TraceCheckUtils]: 25: Hoare triple {3719#(<= 2 |fibo1_#in~n|)} assume true; {3719#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 22:04:04,312 INFO L275 TraceCheckUtils]: 26: Hoare quadruple {3719#(<= 2 |fibo1_#in~n|)} {3567#true} #65#return; {3699#(<= 3 fibo2_~n)} is VALID [2020-07-08 22:04:04,312 INFO L280 TraceCheckUtils]: 27: Hoare triple {3699#(<= 3 fibo2_~n)} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {3699#(<= 3 fibo2_~n)} is VALID [2020-07-08 22:04:04,313 INFO L263 TraceCheckUtils]: 28: Hoare triple {3699#(<= 3 fibo2_~n)} call #t~ret3 := fibo1(~n - 2); {3567#true} is VALID [2020-07-08 22:04:04,313 INFO L280 TraceCheckUtils]: 29: Hoare triple {3567#true} ~n := #in~n; {3705#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 22:04:04,314 INFO L280 TraceCheckUtils]: 30: Hoare triple {3705#(= fibo1_~n |fibo1_#in~n|)} assume ~n < 1; {3720#(<= |fibo1_#in~n| 0)} is VALID [2020-07-08 22:04:04,315 INFO L280 TraceCheckUtils]: 31: Hoare triple {3720#(<= |fibo1_#in~n| 0)} #res := 0; {3720#(<= |fibo1_#in~n| 0)} is VALID [2020-07-08 22:04:04,316 INFO L280 TraceCheckUtils]: 32: Hoare triple {3720#(<= |fibo1_#in~n| 0)} assume true; {3720#(<= |fibo1_#in~n| 0)} is VALID [2020-07-08 22:04:04,317 INFO L275 TraceCheckUtils]: 33: Hoare quadruple {3720#(<= |fibo1_#in~n| 0)} {3699#(<= 3 fibo2_~n)} #67#return; {3568#false} is VALID [2020-07-08 22:04:04,317 INFO L280 TraceCheckUtils]: 34: Hoare triple {3568#false} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647; {3568#false} is VALID [2020-07-08 22:04:04,317 INFO L280 TraceCheckUtils]: 35: Hoare triple {3568#false} #res := #t~ret2 + #t~ret3; {3568#false} is VALID [2020-07-08 22:04:04,318 INFO L280 TraceCheckUtils]: 36: Hoare triple {3568#false} havoc #t~ret2; {3568#false} is VALID [2020-07-08 22:04:04,318 INFO L280 TraceCheckUtils]: 37: Hoare triple {3568#false} havoc #t~ret3; {3568#false} is VALID [2020-07-08 22:04:04,318 INFO L280 TraceCheckUtils]: 38: Hoare triple {3568#false} assume true; {3568#false} is VALID [2020-07-08 22:04:04,318 INFO L275 TraceCheckUtils]: 39: Hoare quadruple {3568#false} {3567#true} #69#return; {3568#false} is VALID [2020-07-08 22:04:04,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:04:04,324 INFO L280 TraceCheckUtils]: 0: Hoare triple {3567#true} ~n := #in~n; {3567#true} is VALID [2020-07-08 22:04:04,324 INFO L280 TraceCheckUtils]: 1: Hoare triple {3567#true} assume !(~n < 1); {3567#true} is VALID [2020-07-08 22:04:04,324 INFO L280 TraceCheckUtils]: 2: Hoare triple {3567#true} assume 1 == ~n; {3567#true} is VALID [2020-07-08 22:04:04,324 INFO L280 TraceCheckUtils]: 3: Hoare triple {3567#true} #res := 1; {3567#true} is VALID [2020-07-08 22:04:04,325 INFO L280 TraceCheckUtils]: 4: Hoare triple {3567#true} assume true; {3567#true} is VALID [2020-07-08 22:04:04,325 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {3567#true} {3568#false} #71#return; {3568#false} is VALID [2020-07-08 22:04:04,325 INFO L280 TraceCheckUtils]: 0: Hoare triple {3567#true} ~n := #in~n; {3567#true} is VALID [2020-07-08 22:04:04,325 INFO L280 TraceCheckUtils]: 1: Hoare triple {3567#true} assume !(~n < 1); {3567#true} is VALID [2020-07-08 22:04:04,326 INFO L280 TraceCheckUtils]: 2: Hoare triple {3567#true} assume !(1 == ~n); {3567#true} is VALID [2020-07-08 22:04:04,326 INFO L263 TraceCheckUtils]: 3: Hoare triple {3567#true} call #t~ret0 := fibo2(~n - 1); {3567#true} is VALID [2020-07-08 22:04:04,326 INFO L280 TraceCheckUtils]: 4: Hoare triple {3567#true} ~n := #in~n; {3567#true} is VALID [2020-07-08 22:04:04,326 INFO L280 TraceCheckUtils]: 5: Hoare triple {3567#true} assume !(~n < 1); {3567#true} is VALID [2020-07-08 22:04:04,326 INFO L280 TraceCheckUtils]: 6: Hoare triple {3567#true} assume !(1 == ~n); {3567#true} is VALID [2020-07-08 22:04:04,326 INFO L263 TraceCheckUtils]: 7: Hoare triple {3567#true} call #t~ret2 := fibo1(~n - 1); {3567#true} is VALID [2020-07-08 22:04:04,327 INFO L280 TraceCheckUtils]: 8: Hoare triple {3567#true} ~n := #in~n; {3705#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 22:04:04,328 INFO L280 TraceCheckUtils]: 9: Hoare triple {3705#(= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {3706#(and (< 0 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 22:04:04,329 INFO L280 TraceCheckUtils]: 10: Hoare triple {3706#(and (< 0 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} assume !(1 == ~n); {3707#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 22:04:04,329 INFO L263 TraceCheckUtils]: 11: Hoare triple {3707#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} call #t~ret0 := fibo2(~n - 1); {3567#true} is VALID [2020-07-08 22:04:04,329 INFO L280 TraceCheckUtils]: 12: Hoare triple {3567#true} ~n := #in~n; {3567#true} is VALID [2020-07-08 22:04:04,329 INFO L280 TraceCheckUtils]: 13: Hoare triple {3567#true} assume !(~n < 1); {3567#true} is VALID [2020-07-08 22:04:04,330 INFO L280 TraceCheckUtils]: 14: Hoare triple {3567#true} assume 1 == ~n; {3567#true} is VALID [2020-07-08 22:04:04,330 INFO L280 TraceCheckUtils]: 15: Hoare triple {3567#true} #res := 1; {3567#true} is VALID [2020-07-08 22:04:04,330 INFO L280 TraceCheckUtils]: 16: Hoare triple {3567#true} assume true; {3567#true} is VALID [2020-07-08 22:04:04,331 INFO L275 TraceCheckUtils]: 17: Hoare quadruple {3567#true} {3707#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} #69#return; {3707#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 22:04:04,332 INFO L280 TraceCheckUtils]: 18: Hoare triple {3707#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {3707#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 22:04:04,332 INFO L263 TraceCheckUtils]: 19: Hoare triple {3707#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} call #t~ret1 := fibo2(~n - 2); {3567#true} is VALID [2020-07-08 22:04:04,332 INFO L280 TraceCheckUtils]: 20: Hoare triple {3567#true} ~n := #in~n; {3567#true} is VALID [2020-07-08 22:04:04,332 INFO L280 TraceCheckUtils]: 21: Hoare triple {3567#true} assume ~n < 1; {3567#true} is VALID [2020-07-08 22:04:04,332 INFO L280 TraceCheckUtils]: 22: Hoare triple {3567#true} #res := 0; {3567#true} is VALID [2020-07-08 22:04:04,332 INFO L280 TraceCheckUtils]: 23: Hoare triple {3567#true} assume true; {3567#true} is VALID [2020-07-08 22:04:04,334 INFO L275 TraceCheckUtils]: 24: Hoare quadruple {3567#true} {3707#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} #71#return; {3719#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 22:04:04,334 INFO L280 TraceCheckUtils]: 25: Hoare triple {3719#(<= 2 |fibo1_#in~n|)} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647; {3719#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 22:04:04,335 INFO L280 TraceCheckUtils]: 26: Hoare triple {3719#(<= 2 |fibo1_#in~n|)} #res := #t~ret0 + #t~ret1; {3719#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 22:04:04,335 INFO L280 TraceCheckUtils]: 27: Hoare triple {3719#(<= 2 |fibo1_#in~n|)} havoc #t~ret1; {3719#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 22:04:04,336 INFO L280 TraceCheckUtils]: 28: Hoare triple {3719#(<= 2 |fibo1_#in~n|)} havoc #t~ret0; {3719#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 22:04:04,336 INFO L280 TraceCheckUtils]: 29: Hoare triple {3719#(<= 2 |fibo1_#in~n|)} assume true; {3719#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 22:04:04,337 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {3719#(<= 2 |fibo1_#in~n|)} {3567#true} #65#return; {3699#(<= 3 fibo2_~n)} is VALID [2020-07-08 22:04:04,338 INFO L280 TraceCheckUtils]: 31: Hoare triple {3699#(<= 3 fibo2_~n)} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {3699#(<= 3 fibo2_~n)} is VALID [2020-07-08 22:04:04,338 INFO L263 TraceCheckUtils]: 32: Hoare triple {3699#(<= 3 fibo2_~n)} call #t~ret3 := fibo1(~n - 2); {3567#true} is VALID [2020-07-08 22:04:04,339 INFO L280 TraceCheckUtils]: 33: Hoare triple {3567#true} ~n := #in~n; {3705#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 22:04:04,339 INFO L280 TraceCheckUtils]: 34: Hoare triple {3705#(= fibo1_~n |fibo1_#in~n|)} assume ~n < 1; {3720#(<= |fibo1_#in~n| 0)} is VALID [2020-07-08 22:04:04,340 INFO L280 TraceCheckUtils]: 35: Hoare triple {3720#(<= |fibo1_#in~n| 0)} #res := 0; {3720#(<= |fibo1_#in~n| 0)} is VALID [2020-07-08 22:04:04,340 INFO L280 TraceCheckUtils]: 36: Hoare triple {3720#(<= |fibo1_#in~n| 0)} assume true; {3720#(<= |fibo1_#in~n| 0)} is VALID [2020-07-08 22:04:04,342 INFO L275 TraceCheckUtils]: 37: Hoare quadruple {3720#(<= |fibo1_#in~n| 0)} {3699#(<= 3 fibo2_~n)} #67#return; {3568#false} is VALID [2020-07-08 22:04:04,343 INFO L280 TraceCheckUtils]: 38: Hoare triple {3568#false} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647; {3568#false} is VALID [2020-07-08 22:04:04,343 INFO L280 TraceCheckUtils]: 39: Hoare triple {3568#false} #res := #t~ret2 + #t~ret3; {3568#false} is VALID [2020-07-08 22:04:04,344 INFO L280 TraceCheckUtils]: 40: Hoare triple {3568#false} havoc #t~ret2; {3568#false} is VALID [2020-07-08 22:04:04,344 INFO L280 TraceCheckUtils]: 41: Hoare triple {3568#false} havoc #t~ret3; {3568#false} is VALID [2020-07-08 22:04:04,344 INFO L280 TraceCheckUtils]: 42: Hoare triple {3568#false} assume true; {3568#false} is VALID [2020-07-08 22:04:04,344 INFO L275 TraceCheckUtils]: 43: Hoare quadruple {3568#false} {3567#true} #69#return; {3568#false} is VALID [2020-07-08 22:04:04,344 INFO L280 TraceCheckUtils]: 44: Hoare triple {3568#false} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {3568#false} is VALID [2020-07-08 22:04:04,345 INFO L263 TraceCheckUtils]: 45: Hoare triple {3568#false} call #t~ret1 := fibo2(~n - 2); {3567#true} is VALID [2020-07-08 22:04:04,345 INFO L280 TraceCheckUtils]: 46: Hoare triple {3567#true} ~n := #in~n; {3567#true} is VALID [2020-07-08 22:04:04,345 INFO L280 TraceCheckUtils]: 47: Hoare triple {3567#true} assume !(~n < 1); {3567#true} is VALID [2020-07-08 22:04:04,345 INFO L280 TraceCheckUtils]: 48: Hoare triple {3567#true} assume 1 == ~n; {3567#true} is VALID [2020-07-08 22:04:04,345 INFO L280 TraceCheckUtils]: 49: Hoare triple {3567#true} #res := 1; {3567#true} is VALID [2020-07-08 22:04:04,346 INFO L280 TraceCheckUtils]: 50: Hoare triple {3567#true} assume true; {3567#true} is VALID [2020-07-08 22:04:04,346 INFO L275 TraceCheckUtils]: 51: Hoare quadruple {3567#true} {3568#false} #71#return; {3568#false} is VALID [2020-07-08 22:04:04,346 INFO L280 TraceCheckUtils]: 52: Hoare triple {3568#false} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647; {3568#false} is VALID [2020-07-08 22:04:04,346 INFO L280 TraceCheckUtils]: 53: Hoare triple {3568#false} #res := #t~ret0 + #t~ret1; {3568#false} is VALID [2020-07-08 22:04:04,346 INFO L280 TraceCheckUtils]: 54: Hoare triple {3568#false} havoc #t~ret1; {3568#false} is VALID [2020-07-08 22:04:04,347 INFO L280 TraceCheckUtils]: 55: Hoare triple {3568#false} havoc #t~ret0; {3568#false} is VALID [2020-07-08 22:04:04,347 INFO L280 TraceCheckUtils]: 56: Hoare triple {3568#false} assume true; {3568#false} is VALID [2020-07-08 22:04:04,347 INFO L275 TraceCheckUtils]: 57: Hoare quadruple {3568#false} {3571#(<= 4 main_~x~0)} #63#return; {3568#false} is VALID [2020-07-08 22:04:04,350 INFO L263 TraceCheckUtils]: 0: Hoare triple {3567#true} call ULTIMATE.init(); {3567#true} is VALID [2020-07-08 22:04:04,350 INFO L280 TraceCheckUtils]: 1: Hoare triple {3567#true} assume true; {3567#true} is VALID [2020-07-08 22:04:04,350 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {3567#true} {3567#true} #59#return; {3567#true} is VALID [2020-07-08 22:04:04,350 INFO L263 TraceCheckUtils]: 3: Hoare triple {3567#true} call #t~ret5 := main(); {3567#true} is VALID [2020-07-08 22:04:04,351 INFO L280 TraceCheckUtils]: 4: Hoare triple {3567#true} ~x~0 := 4; {3571#(<= 4 main_~x~0)} is VALID [2020-07-08 22:04:04,352 INFO L263 TraceCheckUtils]: 5: Hoare triple {3571#(<= 4 main_~x~0)} call #t~ret4 := fibo1(~x~0); {3567#true} is VALID [2020-07-08 22:04:04,352 INFO L280 TraceCheckUtils]: 6: Hoare triple {3567#true} ~n := #in~n; {3567#true} is VALID [2020-07-08 22:04:04,352 INFO L280 TraceCheckUtils]: 7: Hoare triple {3567#true} assume !(~n < 1); {3567#true} is VALID [2020-07-08 22:04:04,352 INFO L280 TraceCheckUtils]: 8: Hoare triple {3567#true} assume !(1 == ~n); {3567#true} is VALID [2020-07-08 22:04:04,352 INFO L263 TraceCheckUtils]: 9: Hoare triple {3567#true} call #t~ret0 := fibo2(~n - 1); {3567#true} is VALID [2020-07-08 22:04:04,353 INFO L280 TraceCheckUtils]: 10: Hoare triple {3567#true} ~n := #in~n; {3567#true} is VALID [2020-07-08 22:04:04,353 INFO L280 TraceCheckUtils]: 11: Hoare triple {3567#true} assume !(~n < 1); {3567#true} is VALID [2020-07-08 22:04:04,353 INFO L280 TraceCheckUtils]: 12: Hoare triple {3567#true} assume !(1 == ~n); {3567#true} is VALID [2020-07-08 22:04:04,353 INFO L263 TraceCheckUtils]: 13: Hoare triple {3567#true} call #t~ret2 := fibo1(~n - 1); {3567#true} is VALID [2020-07-08 22:04:04,354 INFO L280 TraceCheckUtils]: 14: Hoare triple {3567#true} ~n := #in~n; {3705#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 22:04:04,355 INFO L280 TraceCheckUtils]: 15: Hoare triple {3705#(= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {3706#(and (< 0 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 22:04:04,355 INFO L280 TraceCheckUtils]: 16: Hoare triple {3706#(and (< 0 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} assume !(1 == ~n); {3707#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 22:04:04,356 INFO L263 TraceCheckUtils]: 17: Hoare triple {3707#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} call #t~ret0 := fibo2(~n - 1); {3567#true} is VALID [2020-07-08 22:04:04,356 INFO L280 TraceCheckUtils]: 18: Hoare triple {3567#true} ~n := #in~n; {3567#true} is VALID [2020-07-08 22:04:04,356 INFO L280 TraceCheckUtils]: 19: Hoare triple {3567#true} assume !(~n < 1); {3567#true} is VALID [2020-07-08 22:04:04,356 INFO L280 TraceCheckUtils]: 20: Hoare triple {3567#true} assume 1 == ~n; {3567#true} is VALID [2020-07-08 22:04:04,356 INFO L280 TraceCheckUtils]: 21: Hoare triple {3567#true} #res := 1; {3567#true} is VALID [2020-07-08 22:04:04,357 INFO L280 TraceCheckUtils]: 22: Hoare triple {3567#true} assume true; {3567#true} is VALID [2020-07-08 22:04:04,358 INFO L275 TraceCheckUtils]: 23: Hoare quadruple {3567#true} {3707#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} #69#return; {3707#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 22:04:04,359 INFO L280 TraceCheckUtils]: 24: Hoare triple {3707#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {3707#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 22:04:04,359 INFO L263 TraceCheckUtils]: 25: Hoare triple {3707#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} call #t~ret1 := fibo2(~n - 2); {3567#true} is VALID [2020-07-08 22:04:04,359 INFO L280 TraceCheckUtils]: 26: Hoare triple {3567#true} ~n := #in~n; {3567#true} is VALID [2020-07-08 22:04:04,359 INFO L280 TraceCheckUtils]: 27: Hoare triple {3567#true} assume ~n < 1; {3567#true} is VALID [2020-07-08 22:04:04,359 INFO L280 TraceCheckUtils]: 28: Hoare triple {3567#true} #res := 0; {3567#true} is VALID [2020-07-08 22:04:04,359 INFO L280 TraceCheckUtils]: 29: Hoare triple {3567#true} assume true; {3567#true} is VALID [2020-07-08 22:04:04,361 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {3567#true} {3707#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} #71#return; {3719#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 22:04:04,362 INFO L280 TraceCheckUtils]: 31: Hoare triple {3719#(<= 2 |fibo1_#in~n|)} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647; {3719#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 22:04:04,362 INFO L280 TraceCheckUtils]: 32: Hoare triple {3719#(<= 2 |fibo1_#in~n|)} #res := #t~ret0 + #t~ret1; {3719#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 22:04:04,363 INFO L280 TraceCheckUtils]: 33: Hoare triple {3719#(<= 2 |fibo1_#in~n|)} havoc #t~ret1; {3719#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 22:04:04,363 INFO L280 TraceCheckUtils]: 34: Hoare triple {3719#(<= 2 |fibo1_#in~n|)} havoc #t~ret0; {3719#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 22:04:04,364 INFO L280 TraceCheckUtils]: 35: Hoare triple {3719#(<= 2 |fibo1_#in~n|)} assume true; {3719#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 22:04:04,365 INFO L275 TraceCheckUtils]: 36: Hoare quadruple {3719#(<= 2 |fibo1_#in~n|)} {3567#true} #65#return; {3699#(<= 3 fibo2_~n)} is VALID [2020-07-08 22:04:04,366 INFO L280 TraceCheckUtils]: 37: Hoare triple {3699#(<= 3 fibo2_~n)} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {3699#(<= 3 fibo2_~n)} is VALID [2020-07-08 22:04:04,366 INFO L263 TraceCheckUtils]: 38: Hoare triple {3699#(<= 3 fibo2_~n)} call #t~ret3 := fibo1(~n - 2); {3567#true} is VALID [2020-07-08 22:04:04,367 INFO L280 TraceCheckUtils]: 39: Hoare triple {3567#true} ~n := #in~n; {3705#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 22:04:04,367 INFO L280 TraceCheckUtils]: 40: Hoare triple {3705#(= fibo1_~n |fibo1_#in~n|)} assume ~n < 1; {3720#(<= |fibo1_#in~n| 0)} is VALID [2020-07-08 22:04:04,368 INFO L280 TraceCheckUtils]: 41: Hoare triple {3720#(<= |fibo1_#in~n| 0)} #res := 0; {3720#(<= |fibo1_#in~n| 0)} is VALID [2020-07-08 22:04:04,368 INFO L280 TraceCheckUtils]: 42: Hoare triple {3720#(<= |fibo1_#in~n| 0)} assume true; {3720#(<= |fibo1_#in~n| 0)} is VALID [2020-07-08 22:04:04,370 INFO L275 TraceCheckUtils]: 43: Hoare quadruple {3720#(<= |fibo1_#in~n| 0)} {3699#(<= 3 fibo2_~n)} #67#return; {3568#false} is VALID [2020-07-08 22:04:04,370 INFO L280 TraceCheckUtils]: 44: Hoare triple {3568#false} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647; {3568#false} is VALID [2020-07-08 22:04:04,370 INFO L280 TraceCheckUtils]: 45: Hoare triple {3568#false} #res := #t~ret2 + #t~ret3; {3568#false} is VALID [2020-07-08 22:04:04,370 INFO L280 TraceCheckUtils]: 46: Hoare triple {3568#false} havoc #t~ret2; {3568#false} is VALID [2020-07-08 22:04:04,370 INFO L280 TraceCheckUtils]: 47: Hoare triple {3568#false} havoc #t~ret3; {3568#false} is VALID [2020-07-08 22:04:04,371 INFO L280 TraceCheckUtils]: 48: Hoare triple {3568#false} assume true; {3568#false} is VALID [2020-07-08 22:04:04,371 INFO L275 TraceCheckUtils]: 49: Hoare quadruple {3568#false} {3567#true} #69#return; {3568#false} is VALID [2020-07-08 22:04:04,371 INFO L280 TraceCheckUtils]: 50: Hoare triple {3568#false} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {3568#false} is VALID [2020-07-08 22:04:04,371 INFO L263 TraceCheckUtils]: 51: Hoare triple {3568#false} call #t~ret1 := fibo2(~n - 2); {3567#true} is VALID [2020-07-08 22:04:04,371 INFO L280 TraceCheckUtils]: 52: Hoare triple {3567#true} ~n := #in~n; {3567#true} is VALID [2020-07-08 22:04:04,372 INFO L280 TraceCheckUtils]: 53: Hoare triple {3567#true} assume !(~n < 1); {3567#true} is VALID [2020-07-08 22:04:04,372 INFO L280 TraceCheckUtils]: 54: Hoare triple {3567#true} assume 1 == ~n; {3567#true} is VALID [2020-07-08 22:04:04,372 INFO L280 TraceCheckUtils]: 55: Hoare triple {3567#true} #res := 1; {3567#true} is VALID [2020-07-08 22:04:04,372 INFO L280 TraceCheckUtils]: 56: Hoare triple {3567#true} assume true; {3567#true} is VALID [2020-07-08 22:04:04,372 INFO L275 TraceCheckUtils]: 57: Hoare quadruple {3567#true} {3568#false} #71#return; {3568#false} is VALID [2020-07-08 22:04:04,372 INFO L280 TraceCheckUtils]: 58: Hoare triple {3568#false} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647; {3568#false} is VALID [2020-07-08 22:04:04,373 INFO L280 TraceCheckUtils]: 59: Hoare triple {3568#false} #res := #t~ret0 + #t~ret1; {3568#false} is VALID [2020-07-08 22:04:04,373 INFO L280 TraceCheckUtils]: 60: Hoare triple {3568#false} havoc #t~ret1; {3568#false} is VALID [2020-07-08 22:04:04,373 INFO L280 TraceCheckUtils]: 61: Hoare triple {3568#false} havoc #t~ret0; {3568#false} is VALID [2020-07-08 22:04:04,373 INFO L280 TraceCheckUtils]: 62: Hoare triple {3568#false} assume true; {3568#false} is VALID [2020-07-08 22:04:04,373 INFO L275 TraceCheckUtils]: 63: Hoare quadruple {3568#false} {3571#(<= 4 main_~x~0)} #63#return; {3568#false} is VALID [2020-07-08 22:04:04,374 INFO L280 TraceCheckUtils]: 64: Hoare triple {3568#false} assume -2147483648 <= #t~ret4 && #t~ret4 <= 2147483647; {3568#false} is VALID [2020-07-08 22:04:04,374 INFO L280 TraceCheckUtils]: 65: Hoare triple {3568#false} ~result~0 := #t~ret4; {3568#false} is VALID [2020-07-08 22:04:04,374 INFO L280 TraceCheckUtils]: 66: Hoare triple {3568#false} havoc #t~ret4; {3568#false} is VALID [2020-07-08 22:04:04,374 INFO L280 TraceCheckUtils]: 67: Hoare triple {3568#false} assume 3 == ~result~0; {3568#false} is VALID [2020-07-08 22:04:04,374 INFO L280 TraceCheckUtils]: 68: Hoare triple {3568#false} assume !false; {3568#false} is VALID [2020-07-08 22:04:04,378 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-07-08 22:04:04,378 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1670232516] [2020-07-08 22:04:04,378 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-08 22:04:04,379 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-07-08 22:04:04,379 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039168638] [2020-07-08 22:04:04,379 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 69 [2020-07-08 22:04:04,380 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 22:04:04,380 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states. [2020-07-08 22:04:04,451 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 59 edges. 59 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:04:04,451 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-08 22:04:04,452 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 22:04:04,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-08 22:04:04,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-07-08 22:04:04,453 INFO L87 Difference]: Start difference. First operand 106 states and 145 transitions. Second operand 9 states. [2020-07-08 22:04:05,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:04:05,153 INFO L93 Difference]: Finished difference Result 227 states and 348 transitions. [2020-07-08 22:04:05,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-08 22:04:05,153 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 69 [2020-07-08 22:04:05,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 22:04:05,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-07-08 22:04:05,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 113 transitions. [2020-07-08 22:04:05,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-07-08 22:04:05,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 113 transitions. [2020-07-08 22:04:05,163 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states and 113 transitions. [2020-07-08 22:04:05,288 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 113 edges. 113 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:04:05,294 INFO L225 Difference]: With dead ends: 227 [2020-07-08 22:04:05,294 INFO L226 Difference]: Without dead ends: 127 [2020-07-08 22:04:05,296 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-07-08 22:04:05,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2020-07-08 22:04:05,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 115. [2020-07-08 22:04:05,554 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 22:04:05,555 INFO L82 GeneralOperation]: Start isEquivalent. First operand 127 states. Second operand 115 states. [2020-07-08 22:04:05,555 INFO L74 IsIncluded]: Start isIncluded. First operand 127 states. Second operand 115 states. [2020-07-08 22:04:05,555 INFO L87 Difference]: Start difference. First operand 127 states. Second operand 115 states. [2020-07-08 22:04:05,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:04:05,565 INFO L93 Difference]: Finished difference Result 127 states and 180 transitions. [2020-07-08 22:04:05,565 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 180 transitions. [2020-07-08 22:04:05,566 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:04:05,566 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:04:05,566 INFO L74 IsIncluded]: Start isIncluded. First operand 115 states. Second operand 127 states. [2020-07-08 22:04:05,567 INFO L87 Difference]: Start difference. First operand 115 states. Second operand 127 states. [2020-07-08 22:04:05,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:04:05,575 INFO L93 Difference]: Finished difference Result 127 states and 180 transitions. [2020-07-08 22:04:05,575 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 180 transitions. [2020-07-08 22:04:05,576 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:04:05,577 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:04:05,577 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 22:04:05,577 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 22:04:05,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-07-08 22:04:05,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 161 transitions. [2020-07-08 22:04:05,584 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 161 transitions. Word has length 69 [2020-07-08 22:04:05,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 22:04:05,584 INFO L479 AbstractCegarLoop]: Abstraction has 115 states and 161 transitions. [2020-07-08 22:04:05,585 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-08 22:04:05,585 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 115 states and 161 transitions. [2020-07-08 22:04:05,803 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 161 edges. 161 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:04:05,804 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 161 transitions. [2020-07-08 22:04:05,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-07-08 22:04:05,807 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 22:04:05,807 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 22:04:05,807 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-07-08 22:04:05,808 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 22:04:05,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 22:04:05,808 INFO L82 PathProgramCache]: Analyzing trace with hash -439633211, now seen corresponding path program 1 times [2020-07-08 22:04:05,808 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 22:04:05,809 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [264528935] [2020-07-08 22:04:05,809 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 22:04:05,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:04:05,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:04:05,854 INFO L280 TraceCheckUtils]: 0: Hoare triple {4663#true} assume true; {4663#true} is VALID [2020-07-08 22:04:05,855 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {4663#true} {4663#true} #59#return; {4663#true} is VALID [2020-07-08 22:04:05,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:04:05,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:04:05,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:04:06,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:04:06,012 INFO L280 TraceCheckUtils]: 0: Hoare triple {4663#true} ~n := #in~n; {4663#true} is VALID [2020-07-08 22:04:06,013 INFO L280 TraceCheckUtils]: 1: Hoare triple {4663#true} assume !(~n < 1); {4663#true} is VALID [2020-07-08 22:04:06,013 INFO L280 TraceCheckUtils]: 2: Hoare triple {4663#true} assume 1 == ~n; {4663#true} is VALID [2020-07-08 22:04:06,013 INFO L280 TraceCheckUtils]: 3: Hoare triple {4663#true} #res := 1; {4663#true} is VALID [2020-07-08 22:04:06,013 INFO L280 TraceCheckUtils]: 4: Hoare triple {4663#true} assume true; {4663#true} is VALID [2020-07-08 22:04:06,017 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {4663#true} {4809#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} #69#return; {4809#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 22:04:06,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:04:06,025 INFO L280 TraceCheckUtils]: 0: Hoare triple {4663#true} ~n := #in~n; {4663#true} is VALID [2020-07-08 22:04:06,025 INFO L280 TraceCheckUtils]: 1: Hoare triple {4663#true} assume ~n < 1; {4663#true} is VALID [2020-07-08 22:04:06,026 INFO L280 TraceCheckUtils]: 2: Hoare triple {4663#true} #res := 0; {4663#true} is VALID [2020-07-08 22:04:06,026 INFO L280 TraceCheckUtils]: 3: Hoare triple {4663#true} assume true; {4663#true} is VALID [2020-07-08 22:04:06,027 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {4663#true} {4809#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} #71#return; {4821#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 22:04:06,028 INFO L280 TraceCheckUtils]: 0: Hoare triple {4663#true} ~n := #in~n; {4807#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 22:04:06,028 INFO L280 TraceCheckUtils]: 1: Hoare triple {4807#(= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {4808#(and (< 0 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 22:04:06,029 INFO L280 TraceCheckUtils]: 2: Hoare triple {4808#(and (< 0 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} assume !(1 == ~n); {4809#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 22:04:06,029 INFO L263 TraceCheckUtils]: 3: Hoare triple {4809#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} call #t~ret0 := fibo2(~n - 1); {4663#true} is VALID [2020-07-08 22:04:06,029 INFO L280 TraceCheckUtils]: 4: Hoare triple {4663#true} ~n := #in~n; {4663#true} is VALID [2020-07-08 22:04:06,029 INFO L280 TraceCheckUtils]: 5: Hoare triple {4663#true} assume !(~n < 1); {4663#true} is VALID [2020-07-08 22:04:06,029 INFO L280 TraceCheckUtils]: 6: Hoare triple {4663#true} assume 1 == ~n; {4663#true} is VALID [2020-07-08 22:04:06,029 INFO L280 TraceCheckUtils]: 7: Hoare triple {4663#true} #res := 1; {4663#true} is VALID [2020-07-08 22:04:06,030 INFO L280 TraceCheckUtils]: 8: Hoare triple {4663#true} assume true; {4663#true} is VALID [2020-07-08 22:04:06,030 INFO L275 TraceCheckUtils]: 9: Hoare quadruple {4663#true} {4809#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} #69#return; {4809#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 22:04:06,031 INFO L280 TraceCheckUtils]: 10: Hoare triple {4809#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {4809#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 22:04:06,031 INFO L263 TraceCheckUtils]: 11: Hoare triple {4809#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} call #t~ret1 := fibo2(~n - 2); {4663#true} is VALID [2020-07-08 22:04:06,031 INFO L280 TraceCheckUtils]: 12: Hoare triple {4663#true} ~n := #in~n; {4663#true} is VALID [2020-07-08 22:04:06,031 INFO L280 TraceCheckUtils]: 13: Hoare triple {4663#true} assume ~n < 1; {4663#true} is VALID [2020-07-08 22:04:06,031 INFO L280 TraceCheckUtils]: 14: Hoare triple {4663#true} #res := 0; {4663#true} is VALID [2020-07-08 22:04:06,032 INFO L280 TraceCheckUtils]: 15: Hoare triple {4663#true} assume true; {4663#true} is VALID [2020-07-08 22:04:06,032 INFO L275 TraceCheckUtils]: 16: Hoare quadruple {4663#true} {4809#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} #71#return; {4821#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 22:04:06,033 INFO L280 TraceCheckUtils]: 17: Hoare triple {4821#(<= 2 |fibo1_#in~n|)} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647; {4821#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 22:04:06,037 INFO L280 TraceCheckUtils]: 18: Hoare triple {4821#(<= 2 |fibo1_#in~n|)} #res := #t~ret0 + #t~ret1; {4821#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 22:04:06,041 INFO L280 TraceCheckUtils]: 19: Hoare triple {4821#(<= 2 |fibo1_#in~n|)} havoc #t~ret1; {4821#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 22:04:06,041 INFO L280 TraceCheckUtils]: 20: Hoare triple {4821#(<= 2 |fibo1_#in~n|)} havoc #t~ret0; {4821#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 22:04:06,042 INFO L280 TraceCheckUtils]: 21: Hoare triple {4821#(<= 2 |fibo1_#in~n|)} assume true; {4821#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 22:04:06,043 INFO L275 TraceCheckUtils]: 22: Hoare quadruple {4821#(<= 2 |fibo1_#in~n|)} {4775#(= fibo2_~n |fibo2_#in~n|)} #65#return; {4799#(and (= fibo2_~n |fibo2_#in~n|) (<= 3 fibo2_~n))} is VALID [2020-07-08 22:04:06,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:04:06,049 INFO L280 TraceCheckUtils]: 0: Hoare triple {4663#true} ~n := #in~n; {4663#true} is VALID [2020-07-08 22:04:06,050 INFO L280 TraceCheckUtils]: 1: Hoare triple {4663#true} assume !(~n < 1); {4663#true} is VALID [2020-07-08 22:04:06,050 INFO L280 TraceCheckUtils]: 2: Hoare triple {4663#true} assume 1 == ~n; {4663#true} is VALID [2020-07-08 22:04:06,050 INFO L280 TraceCheckUtils]: 3: Hoare triple {4663#true} #res := 1; {4663#true} is VALID [2020-07-08 22:04:06,051 INFO L280 TraceCheckUtils]: 4: Hoare triple {4663#true} assume true; {4663#true} is VALID [2020-07-08 22:04:06,052 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {4663#true} {4799#(and (= fibo2_~n |fibo2_#in~n|) (<= 3 fibo2_~n))} #67#return; {4806#(<= 3 |fibo2_#in~n|)} is VALID [2020-07-08 22:04:06,052 INFO L280 TraceCheckUtils]: 0: Hoare triple {4663#true} ~n := #in~n; {4775#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 22:04:06,053 INFO L280 TraceCheckUtils]: 1: Hoare triple {4775#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {4775#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 22:04:06,053 INFO L280 TraceCheckUtils]: 2: Hoare triple {4775#(= fibo2_~n |fibo2_#in~n|)} assume !(1 == ~n); {4775#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 22:04:06,054 INFO L263 TraceCheckUtils]: 3: Hoare triple {4775#(= fibo2_~n |fibo2_#in~n|)} call #t~ret2 := fibo1(~n - 1); {4663#true} is VALID [2020-07-08 22:04:06,056 INFO L280 TraceCheckUtils]: 4: Hoare triple {4663#true} ~n := #in~n; {4807#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 22:04:06,057 INFO L280 TraceCheckUtils]: 5: Hoare triple {4807#(= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {4808#(and (< 0 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 22:04:06,058 INFO L280 TraceCheckUtils]: 6: Hoare triple {4808#(and (< 0 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} assume !(1 == ~n); {4809#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 22:04:06,058 INFO L263 TraceCheckUtils]: 7: Hoare triple {4809#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} call #t~ret0 := fibo2(~n - 1); {4663#true} is VALID [2020-07-08 22:04:06,059 INFO L280 TraceCheckUtils]: 8: Hoare triple {4663#true} ~n := #in~n; {4663#true} is VALID [2020-07-08 22:04:06,059 INFO L280 TraceCheckUtils]: 9: Hoare triple {4663#true} assume !(~n < 1); {4663#true} is VALID [2020-07-08 22:04:06,059 INFO L280 TraceCheckUtils]: 10: Hoare triple {4663#true} assume 1 == ~n; {4663#true} is VALID [2020-07-08 22:04:06,059 INFO L280 TraceCheckUtils]: 11: Hoare triple {4663#true} #res := 1; {4663#true} is VALID [2020-07-08 22:04:06,059 INFO L280 TraceCheckUtils]: 12: Hoare triple {4663#true} assume true; {4663#true} is VALID [2020-07-08 22:04:06,061 INFO L275 TraceCheckUtils]: 13: Hoare quadruple {4663#true} {4809#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} #69#return; {4809#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 22:04:06,062 INFO L280 TraceCheckUtils]: 14: Hoare triple {4809#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {4809#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 22:04:06,062 INFO L263 TraceCheckUtils]: 15: Hoare triple {4809#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} call #t~ret1 := fibo2(~n - 2); {4663#true} is VALID [2020-07-08 22:04:06,062 INFO L280 TraceCheckUtils]: 16: Hoare triple {4663#true} ~n := #in~n; {4663#true} is VALID [2020-07-08 22:04:06,062 INFO L280 TraceCheckUtils]: 17: Hoare triple {4663#true} assume ~n < 1; {4663#true} is VALID [2020-07-08 22:04:06,062 INFO L280 TraceCheckUtils]: 18: Hoare triple {4663#true} #res := 0; {4663#true} is VALID [2020-07-08 22:04:06,063 INFO L280 TraceCheckUtils]: 19: Hoare triple {4663#true} assume true; {4663#true} is VALID [2020-07-08 22:04:06,064 INFO L275 TraceCheckUtils]: 20: Hoare quadruple {4663#true} {4809#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} #71#return; {4821#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 22:04:06,064 INFO L280 TraceCheckUtils]: 21: Hoare triple {4821#(<= 2 |fibo1_#in~n|)} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647; {4821#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 22:04:06,065 INFO L280 TraceCheckUtils]: 22: Hoare triple {4821#(<= 2 |fibo1_#in~n|)} #res := #t~ret0 + #t~ret1; {4821#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 22:04:06,065 INFO L280 TraceCheckUtils]: 23: Hoare triple {4821#(<= 2 |fibo1_#in~n|)} havoc #t~ret1; {4821#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 22:04:06,066 INFO L280 TraceCheckUtils]: 24: Hoare triple {4821#(<= 2 |fibo1_#in~n|)} havoc #t~ret0; {4821#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 22:04:06,067 INFO L280 TraceCheckUtils]: 25: Hoare triple {4821#(<= 2 |fibo1_#in~n|)} assume true; {4821#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 22:04:06,069 INFO L275 TraceCheckUtils]: 26: Hoare quadruple {4821#(<= 2 |fibo1_#in~n|)} {4775#(= fibo2_~n |fibo2_#in~n|)} #65#return; {4799#(and (= fibo2_~n |fibo2_#in~n|) (<= 3 fibo2_~n))} is VALID [2020-07-08 22:04:06,069 INFO L280 TraceCheckUtils]: 27: Hoare triple {4799#(and (= fibo2_~n |fibo2_#in~n|) (<= 3 fibo2_~n))} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {4799#(and (= fibo2_~n |fibo2_#in~n|) (<= 3 fibo2_~n))} is VALID [2020-07-08 22:04:06,070 INFO L263 TraceCheckUtils]: 28: Hoare triple {4799#(and (= fibo2_~n |fibo2_#in~n|) (<= 3 fibo2_~n))} call #t~ret3 := fibo1(~n - 2); {4663#true} is VALID [2020-07-08 22:04:06,070 INFO L280 TraceCheckUtils]: 29: Hoare triple {4663#true} ~n := #in~n; {4663#true} is VALID [2020-07-08 22:04:06,070 INFO L280 TraceCheckUtils]: 30: Hoare triple {4663#true} assume !(~n < 1); {4663#true} is VALID [2020-07-08 22:04:06,070 INFO L280 TraceCheckUtils]: 31: Hoare triple {4663#true} assume 1 == ~n; {4663#true} is VALID [2020-07-08 22:04:06,070 INFO L280 TraceCheckUtils]: 32: Hoare triple {4663#true} #res := 1; {4663#true} is VALID [2020-07-08 22:04:06,071 INFO L280 TraceCheckUtils]: 33: Hoare triple {4663#true} assume true; {4663#true} is VALID [2020-07-08 22:04:06,072 INFO L275 TraceCheckUtils]: 34: Hoare quadruple {4663#true} {4799#(and (= fibo2_~n |fibo2_#in~n|) (<= 3 fibo2_~n))} #67#return; {4806#(<= 3 |fibo2_#in~n|)} is VALID [2020-07-08 22:04:06,072 INFO L280 TraceCheckUtils]: 35: Hoare triple {4806#(<= 3 |fibo2_#in~n|)} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647; {4806#(<= 3 |fibo2_#in~n|)} is VALID [2020-07-08 22:04:06,073 INFO L280 TraceCheckUtils]: 36: Hoare triple {4806#(<= 3 |fibo2_#in~n|)} #res := #t~ret2 + #t~ret3; {4806#(<= 3 |fibo2_#in~n|)} is VALID [2020-07-08 22:04:06,073 INFO L280 TraceCheckUtils]: 37: Hoare triple {4806#(<= 3 |fibo2_#in~n|)} havoc #t~ret2; {4806#(<= 3 |fibo2_#in~n|)} is VALID [2020-07-08 22:04:06,074 INFO L280 TraceCheckUtils]: 38: Hoare triple {4806#(<= 3 |fibo2_#in~n|)} havoc #t~ret3; {4806#(<= 3 |fibo2_#in~n|)} is VALID [2020-07-08 22:04:06,074 INFO L280 TraceCheckUtils]: 39: Hoare triple {4806#(<= 3 |fibo2_#in~n|)} assume true; {4806#(<= 3 |fibo2_#in~n|)} is VALID [2020-07-08 22:04:06,075 INFO L275 TraceCheckUtils]: 40: Hoare quadruple {4806#(<= 3 |fibo2_#in~n|)} {4663#true} #69#return; {4768#(<= 4 fibo1_~n)} is VALID [2020-07-08 22:04:06,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:04:06,097 INFO L280 TraceCheckUtils]: 0: Hoare triple {4663#true} ~n := #in~n; {4775#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 22:04:06,098 INFO L280 TraceCheckUtils]: 1: Hoare triple {4775#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {4775#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 22:04:06,099 INFO L280 TraceCheckUtils]: 2: Hoare triple {4775#(= fibo2_~n |fibo2_#in~n|)} assume 1 == ~n; {4822#(<= |fibo2_#in~n| 1)} is VALID [2020-07-08 22:04:06,099 INFO L280 TraceCheckUtils]: 3: Hoare triple {4822#(<= |fibo2_#in~n| 1)} #res := 1; {4822#(<= |fibo2_#in~n| 1)} is VALID [2020-07-08 22:04:06,100 INFO L280 TraceCheckUtils]: 4: Hoare triple {4822#(<= |fibo2_#in~n| 1)} assume true; {4822#(<= |fibo2_#in~n| 1)} is VALID [2020-07-08 22:04:06,101 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {4822#(<= |fibo2_#in~n| 1)} {4768#(<= 4 fibo1_~n)} #71#return; {4664#false} is VALID [2020-07-08 22:04:06,101 INFO L280 TraceCheckUtils]: 0: Hoare triple {4663#true} ~n := #in~n; {4663#true} is VALID [2020-07-08 22:04:06,102 INFO L280 TraceCheckUtils]: 1: Hoare triple {4663#true} assume !(~n < 1); {4663#true} is VALID [2020-07-08 22:04:06,102 INFO L280 TraceCheckUtils]: 2: Hoare triple {4663#true} assume !(1 == ~n); {4663#true} is VALID [2020-07-08 22:04:06,102 INFO L263 TraceCheckUtils]: 3: Hoare triple {4663#true} call #t~ret0 := fibo2(~n - 1); {4663#true} is VALID [2020-07-08 22:04:06,102 INFO L280 TraceCheckUtils]: 4: Hoare triple {4663#true} ~n := #in~n; {4775#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 22:04:06,103 INFO L280 TraceCheckUtils]: 5: Hoare triple {4775#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {4775#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 22:04:06,104 INFO L280 TraceCheckUtils]: 6: Hoare triple {4775#(= fibo2_~n |fibo2_#in~n|)} assume !(1 == ~n); {4775#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 22:04:06,104 INFO L263 TraceCheckUtils]: 7: Hoare triple {4775#(= fibo2_~n |fibo2_#in~n|)} call #t~ret2 := fibo1(~n - 1); {4663#true} is VALID [2020-07-08 22:04:06,104 INFO L280 TraceCheckUtils]: 8: Hoare triple {4663#true} ~n := #in~n; {4807#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 22:04:06,105 INFO L280 TraceCheckUtils]: 9: Hoare triple {4807#(= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {4808#(and (< 0 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 22:04:06,105 INFO L280 TraceCheckUtils]: 10: Hoare triple {4808#(and (< 0 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} assume !(1 == ~n); {4809#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 22:04:06,106 INFO L263 TraceCheckUtils]: 11: Hoare triple {4809#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} call #t~ret0 := fibo2(~n - 1); {4663#true} is VALID [2020-07-08 22:04:06,106 INFO L280 TraceCheckUtils]: 12: Hoare triple {4663#true} ~n := #in~n; {4663#true} is VALID [2020-07-08 22:04:06,106 INFO L280 TraceCheckUtils]: 13: Hoare triple {4663#true} assume !(~n < 1); {4663#true} is VALID [2020-07-08 22:04:06,106 INFO L280 TraceCheckUtils]: 14: Hoare triple {4663#true} assume 1 == ~n; {4663#true} is VALID [2020-07-08 22:04:06,106 INFO L280 TraceCheckUtils]: 15: Hoare triple {4663#true} #res := 1; {4663#true} is VALID [2020-07-08 22:04:06,106 INFO L280 TraceCheckUtils]: 16: Hoare triple {4663#true} assume true; {4663#true} is VALID [2020-07-08 22:04:06,108 INFO L275 TraceCheckUtils]: 17: Hoare quadruple {4663#true} {4809#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} #69#return; {4809#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 22:04:06,108 INFO L280 TraceCheckUtils]: 18: Hoare triple {4809#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {4809#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 22:04:06,109 INFO L263 TraceCheckUtils]: 19: Hoare triple {4809#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} call #t~ret1 := fibo2(~n - 2); {4663#true} is VALID [2020-07-08 22:04:06,109 INFO L280 TraceCheckUtils]: 20: Hoare triple {4663#true} ~n := #in~n; {4663#true} is VALID [2020-07-08 22:04:06,109 INFO L280 TraceCheckUtils]: 21: Hoare triple {4663#true} assume ~n < 1; {4663#true} is VALID [2020-07-08 22:04:06,110 INFO L280 TraceCheckUtils]: 22: Hoare triple {4663#true} #res := 0; {4663#true} is VALID [2020-07-08 22:04:06,110 INFO L280 TraceCheckUtils]: 23: Hoare triple {4663#true} assume true; {4663#true} is VALID [2020-07-08 22:04:06,111 INFO L275 TraceCheckUtils]: 24: Hoare quadruple {4663#true} {4809#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} #71#return; {4821#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 22:04:06,111 INFO L280 TraceCheckUtils]: 25: Hoare triple {4821#(<= 2 |fibo1_#in~n|)} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647; {4821#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 22:04:06,111 INFO L280 TraceCheckUtils]: 26: Hoare triple {4821#(<= 2 |fibo1_#in~n|)} #res := #t~ret0 + #t~ret1; {4821#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 22:04:06,112 INFO L280 TraceCheckUtils]: 27: Hoare triple {4821#(<= 2 |fibo1_#in~n|)} havoc #t~ret1; {4821#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 22:04:06,112 INFO L280 TraceCheckUtils]: 28: Hoare triple {4821#(<= 2 |fibo1_#in~n|)} havoc #t~ret0; {4821#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 22:04:06,112 INFO L280 TraceCheckUtils]: 29: Hoare triple {4821#(<= 2 |fibo1_#in~n|)} assume true; {4821#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 22:04:06,113 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {4821#(<= 2 |fibo1_#in~n|)} {4775#(= fibo2_~n |fibo2_#in~n|)} #65#return; {4799#(and (= fibo2_~n |fibo2_#in~n|) (<= 3 fibo2_~n))} is VALID [2020-07-08 22:04:06,114 INFO L280 TraceCheckUtils]: 31: Hoare triple {4799#(and (= fibo2_~n |fibo2_#in~n|) (<= 3 fibo2_~n))} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {4799#(and (= fibo2_~n |fibo2_#in~n|) (<= 3 fibo2_~n))} is VALID [2020-07-08 22:04:06,114 INFO L263 TraceCheckUtils]: 32: Hoare triple {4799#(and (= fibo2_~n |fibo2_#in~n|) (<= 3 fibo2_~n))} call #t~ret3 := fibo1(~n - 2); {4663#true} is VALID [2020-07-08 22:04:06,114 INFO L280 TraceCheckUtils]: 33: Hoare triple {4663#true} ~n := #in~n; {4663#true} is VALID [2020-07-08 22:04:06,114 INFO L280 TraceCheckUtils]: 34: Hoare triple {4663#true} assume !(~n < 1); {4663#true} is VALID [2020-07-08 22:04:06,114 INFO L280 TraceCheckUtils]: 35: Hoare triple {4663#true} assume 1 == ~n; {4663#true} is VALID [2020-07-08 22:04:06,114 INFO L280 TraceCheckUtils]: 36: Hoare triple {4663#true} #res := 1; {4663#true} is VALID [2020-07-08 22:04:06,115 INFO L280 TraceCheckUtils]: 37: Hoare triple {4663#true} assume true; {4663#true} is VALID [2020-07-08 22:04:06,115 INFO L275 TraceCheckUtils]: 38: Hoare quadruple {4663#true} {4799#(and (= fibo2_~n |fibo2_#in~n|) (<= 3 fibo2_~n))} #67#return; {4806#(<= 3 |fibo2_#in~n|)} is VALID [2020-07-08 22:04:06,116 INFO L280 TraceCheckUtils]: 39: Hoare triple {4806#(<= 3 |fibo2_#in~n|)} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647; {4806#(<= 3 |fibo2_#in~n|)} is VALID [2020-07-08 22:04:06,116 INFO L280 TraceCheckUtils]: 40: Hoare triple {4806#(<= 3 |fibo2_#in~n|)} #res := #t~ret2 + #t~ret3; {4806#(<= 3 |fibo2_#in~n|)} is VALID [2020-07-08 22:04:06,117 INFO L280 TraceCheckUtils]: 41: Hoare triple {4806#(<= 3 |fibo2_#in~n|)} havoc #t~ret2; {4806#(<= 3 |fibo2_#in~n|)} is VALID [2020-07-08 22:04:06,119 INFO L280 TraceCheckUtils]: 42: Hoare triple {4806#(<= 3 |fibo2_#in~n|)} havoc #t~ret3; {4806#(<= 3 |fibo2_#in~n|)} is VALID [2020-07-08 22:04:06,124 INFO L280 TraceCheckUtils]: 43: Hoare triple {4806#(<= 3 |fibo2_#in~n|)} assume true; {4806#(<= 3 |fibo2_#in~n|)} is VALID [2020-07-08 22:04:06,125 INFO L275 TraceCheckUtils]: 44: Hoare quadruple {4806#(<= 3 |fibo2_#in~n|)} {4663#true} #69#return; {4768#(<= 4 fibo1_~n)} is VALID [2020-07-08 22:04:06,126 INFO L280 TraceCheckUtils]: 45: Hoare triple {4768#(<= 4 fibo1_~n)} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {4768#(<= 4 fibo1_~n)} is VALID [2020-07-08 22:04:06,126 INFO L263 TraceCheckUtils]: 46: Hoare triple {4768#(<= 4 fibo1_~n)} call #t~ret1 := fibo2(~n - 2); {4663#true} is VALID [2020-07-08 22:04:06,126 INFO L280 TraceCheckUtils]: 47: Hoare triple {4663#true} ~n := #in~n; {4775#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 22:04:06,127 INFO L280 TraceCheckUtils]: 48: Hoare triple {4775#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {4775#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 22:04:06,130 INFO L280 TraceCheckUtils]: 49: Hoare triple {4775#(= fibo2_~n |fibo2_#in~n|)} assume 1 == ~n; {4822#(<= |fibo2_#in~n| 1)} is VALID [2020-07-08 22:04:06,134 INFO L280 TraceCheckUtils]: 50: Hoare triple {4822#(<= |fibo2_#in~n| 1)} #res := 1; {4822#(<= |fibo2_#in~n| 1)} is VALID [2020-07-08 22:04:06,135 INFO L280 TraceCheckUtils]: 51: Hoare triple {4822#(<= |fibo2_#in~n| 1)} assume true; {4822#(<= |fibo2_#in~n| 1)} is VALID [2020-07-08 22:04:06,136 INFO L275 TraceCheckUtils]: 52: Hoare quadruple {4822#(<= |fibo2_#in~n| 1)} {4768#(<= 4 fibo1_~n)} #71#return; {4664#false} is VALID [2020-07-08 22:04:06,137 INFO L280 TraceCheckUtils]: 53: Hoare triple {4664#false} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647; {4664#false} is VALID [2020-07-08 22:04:06,137 INFO L280 TraceCheckUtils]: 54: Hoare triple {4664#false} #res := #t~ret0 + #t~ret1; {4664#false} is VALID [2020-07-08 22:04:06,137 INFO L280 TraceCheckUtils]: 55: Hoare triple {4664#false} havoc #t~ret1; {4664#false} is VALID [2020-07-08 22:04:06,137 INFO L280 TraceCheckUtils]: 56: Hoare triple {4664#false} havoc #t~ret0; {4664#false} is VALID [2020-07-08 22:04:06,137 INFO L280 TraceCheckUtils]: 57: Hoare triple {4664#false} assume true; {4664#false} is VALID [2020-07-08 22:04:06,138 INFO L275 TraceCheckUtils]: 58: Hoare quadruple {4664#false} {4667#(<= 4 main_~x~0)} #63#return; {4664#false} is VALID [2020-07-08 22:04:06,140 INFO L263 TraceCheckUtils]: 0: Hoare triple {4663#true} call ULTIMATE.init(); {4663#true} is VALID [2020-07-08 22:04:06,141 INFO L280 TraceCheckUtils]: 1: Hoare triple {4663#true} assume true; {4663#true} is VALID [2020-07-08 22:04:06,141 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {4663#true} {4663#true} #59#return; {4663#true} is VALID [2020-07-08 22:04:06,141 INFO L263 TraceCheckUtils]: 3: Hoare triple {4663#true} call #t~ret5 := main(); {4663#true} is VALID [2020-07-08 22:04:06,142 INFO L280 TraceCheckUtils]: 4: Hoare triple {4663#true} ~x~0 := 4; {4667#(<= 4 main_~x~0)} is VALID [2020-07-08 22:04:06,142 INFO L263 TraceCheckUtils]: 5: Hoare triple {4667#(<= 4 main_~x~0)} call #t~ret4 := fibo1(~x~0); {4663#true} is VALID [2020-07-08 22:04:06,142 INFO L280 TraceCheckUtils]: 6: Hoare triple {4663#true} ~n := #in~n; {4663#true} is VALID [2020-07-08 22:04:06,142 INFO L280 TraceCheckUtils]: 7: Hoare triple {4663#true} assume !(~n < 1); {4663#true} is VALID [2020-07-08 22:04:06,143 INFO L280 TraceCheckUtils]: 8: Hoare triple {4663#true} assume !(1 == ~n); {4663#true} is VALID [2020-07-08 22:04:06,143 INFO L263 TraceCheckUtils]: 9: Hoare triple {4663#true} call #t~ret0 := fibo2(~n - 1); {4663#true} is VALID [2020-07-08 22:04:06,143 INFO L280 TraceCheckUtils]: 10: Hoare triple {4663#true} ~n := #in~n; {4775#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 22:04:06,144 INFO L280 TraceCheckUtils]: 11: Hoare triple {4775#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {4775#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 22:04:06,145 INFO L280 TraceCheckUtils]: 12: Hoare triple {4775#(= fibo2_~n |fibo2_#in~n|)} assume !(1 == ~n); {4775#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 22:04:06,145 INFO L263 TraceCheckUtils]: 13: Hoare triple {4775#(= fibo2_~n |fibo2_#in~n|)} call #t~ret2 := fibo1(~n - 1); {4663#true} is VALID [2020-07-08 22:04:06,145 INFO L280 TraceCheckUtils]: 14: Hoare triple {4663#true} ~n := #in~n; {4807#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 22:04:06,146 INFO L280 TraceCheckUtils]: 15: Hoare triple {4807#(= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {4808#(and (< 0 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 22:04:06,147 INFO L280 TraceCheckUtils]: 16: Hoare triple {4808#(and (< 0 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} assume !(1 == ~n); {4809#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 22:04:06,147 INFO L263 TraceCheckUtils]: 17: Hoare triple {4809#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} call #t~ret0 := fibo2(~n - 1); {4663#true} is VALID [2020-07-08 22:04:06,147 INFO L280 TraceCheckUtils]: 18: Hoare triple {4663#true} ~n := #in~n; {4663#true} is VALID [2020-07-08 22:04:06,148 INFO L280 TraceCheckUtils]: 19: Hoare triple {4663#true} assume !(~n < 1); {4663#true} is VALID [2020-07-08 22:04:06,148 INFO L280 TraceCheckUtils]: 20: Hoare triple {4663#true} assume 1 == ~n; {4663#true} is VALID [2020-07-08 22:04:06,148 INFO L280 TraceCheckUtils]: 21: Hoare triple {4663#true} #res := 1; {4663#true} is VALID [2020-07-08 22:04:06,148 INFO L280 TraceCheckUtils]: 22: Hoare triple {4663#true} assume true; {4663#true} is VALID [2020-07-08 22:04:06,149 INFO L275 TraceCheckUtils]: 23: Hoare quadruple {4663#true} {4809#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} #69#return; {4809#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 22:04:06,150 INFO L280 TraceCheckUtils]: 24: Hoare triple {4809#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {4809#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 22:04:06,150 INFO L263 TraceCheckUtils]: 25: Hoare triple {4809#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} call #t~ret1 := fibo2(~n - 2); {4663#true} is VALID [2020-07-08 22:04:06,150 INFO L280 TraceCheckUtils]: 26: Hoare triple {4663#true} ~n := #in~n; {4663#true} is VALID [2020-07-08 22:04:06,150 INFO L280 TraceCheckUtils]: 27: Hoare triple {4663#true} assume ~n < 1; {4663#true} is VALID [2020-07-08 22:04:06,151 INFO L280 TraceCheckUtils]: 28: Hoare triple {4663#true} #res := 0; {4663#true} is VALID [2020-07-08 22:04:06,151 INFO L280 TraceCheckUtils]: 29: Hoare triple {4663#true} assume true; {4663#true} is VALID [2020-07-08 22:04:06,154 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {4663#true} {4809#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} #71#return; {4821#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 22:04:06,157 INFO L280 TraceCheckUtils]: 31: Hoare triple {4821#(<= 2 |fibo1_#in~n|)} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647; {4821#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 22:04:06,158 INFO L280 TraceCheckUtils]: 32: Hoare triple {4821#(<= 2 |fibo1_#in~n|)} #res := #t~ret0 + #t~ret1; {4821#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 22:04:06,159 INFO L280 TraceCheckUtils]: 33: Hoare triple {4821#(<= 2 |fibo1_#in~n|)} havoc #t~ret1; {4821#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 22:04:06,159 INFO L280 TraceCheckUtils]: 34: Hoare triple {4821#(<= 2 |fibo1_#in~n|)} havoc #t~ret0; {4821#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 22:04:06,160 INFO L280 TraceCheckUtils]: 35: Hoare triple {4821#(<= 2 |fibo1_#in~n|)} assume true; {4821#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 22:04:06,161 INFO L275 TraceCheckUtils]: 36: Hoare quadruple {4821#(<= 2 |fibo1_#in~n|)} {4775#(= fibo2_~n |fibo2_#in~n|)} #65#return; {4799#(and (= fibo2_~n |fibo2_#in~n|) (<= 3 fibo2_~n))} is VALID [2020-07-08 22:04:06,162 INFO L280 TraceCheckUtils]: 37: Hoare triple {4799#(and (= fibo2_~n |fibo2_#in~n|) (<= 3 fibo2_~n))} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {4799#(and (= fibo2_~n |fibo2_#in~n|) (<= 3 fibo2_~n))} is VALID [2020-07-08 22:04:06,162 INFO L263 TraceCheckUtils]: 38: Hoare triple {4799#(and (= fibo2_~n |fibo2_#in~n|) (<= 3 fibo2_~n))} call #t~ret3 := fibo1(~n - 2); {4663#true} is VALID [2020-07-08 22:04:06,162 INFO L280 TraceCheckUtils]: 39: Hoare triple {4663#true} ~n := #in~n; {4663#true} is VALID [2020-07-08 22:04:06,162 INFO L280 TraceCheckUtils]: 40: Hoare triple {4663#true} assume !(~n < 1); {4663#true} is VALID [2020-07-08 22:04:06,163 INFO L280 TraceCheckUtils]: 41: Hoare triple {4663#true} assume 1 == ~n; {4663#true} is VALID [2020-07-08 22:04:06,163 INFO L280 TraceCheckUtils]: 42: Hoare triple {4663#true} #res := 1; {4663#true} is VALID [2020-07-08 22:04:06,163 INFO L280 TraceCheckUtils]: 43: Hoare triple {4663#true} assume true; {4663#true} is VALID [2020-07-08 22:04:06,164 INFO L275 TraceCheckUtils]: 44: Hoare quadruple {4663#true} {4799#(and (= fibo2_~n |fibo2_#in~n|) (<= 3 fibo2_~n))} #67#return; {4806#(<= 3 |fibo2_#in~n|)} is VALID [2020-07-08 22:04:06,164 INFO L280 TraceCheckUtils]: 45: Hoare triple {4806#(<= 3 |fibo2_#in~n|)} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647; {4806#(<= 3 |fibo2_#in~n|)} is VALID [2020-07-08 22:04:06,165 INFO L280 TraceCheckUtils]: 46: Hoare triple {4806#(<= 3 |fibo2_#in~n|)} #res := #t~ret2 + #t~ret3; {4806#(<= 3 |fibo2_#in~n|)} is VALID [2020-07-08 22:04:06,166 INFO L280 TraceCheckUtils]: 47: Hoare triple {4806#(<= 3 |fibo2_#in~n|)} havoc #t~ret2; {4806#(<= 3 |fibo2_#in~n|)} is VALID [2020-07-08 22:04:06,166 INFO L280 TraceCheckUtils]: 48: Hoare triple {4806#(<= 3 |fibo2_#in~n|)} havoc #t~ret3; {4806#(<= 3 |fibo2_#in~n|)} is VALID [2020-07-08 22:04:06,167 INFO L280 TraceCheckUtils]: 49: Hoare triple {4806#(<= 3 |fibo2_#in~n|)} assume true; {4806#(<= 3 |fibo2_#in~n|)} is VALID [2020-07-08 22:04:06,168 INFO L275 TraceCheckUtils]: 50: Hoare quadruple {4806#(<= 3 |fibo2_#in~n|)} {4663#true} #69#return; {4768#(<= 4 fibo1_~n)} is VALID [2020-07-08 22:04:06,168 INFO L280 TraceCheckUtils]: 51: Hoare triple {4768#(<= 4 fibo1_~n)} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {4768#(<= 4 fibo1_~n)} is VALID [2020-07-08 22:04:06,168 INFO L263 TraceCheckUtils]: 52: Hoare triple {4768#(<= 4 fibo1_~n)} call #t~ret1 := fibo2(~n - 2); {4663#true} is VALID [2020-07-08 22:04:06,169 INFO L280 TraceCheckUtils]: 53: Hoare triple {4663#true} ~n := #in~n; {4775#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 22:04:06,169 INFO L280 TraceCheckUtils]: 54: Hoare triple {4775#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {4775#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 22:04:06,170 INFO L280 TraceCheckUtils]: 55: Hoare triple {4775#(= fibo2_~n |fibo2_#in~n|)} assume 1 == ~n; {4822#(<= |fibo2_#in~n| 1)} is VALID [2020-07-08 22:04:06,170 INFO L280 TraceCheckUtils]: 56: Hoare triple {4822#(<= |fibo2_#in~n| 1)} #res := 1; {4822#(<= |fibo2_#in~n| 1)} is VALID [2020-07-08 22:04:06,171 INFO L280 TraceCheckUtils]: 57: Hoare triple {4822#(<= |fibo2_#in~n| 1)} assume true; {4822#(<= |fibo2_#in~n| 1)} is VALID [2020-07-08 22:04:06,172 INFO L275 TraceCheckUtils]: 58: Hoare quadruple {4822#(<= |fibo2_#in~n| 1)} {4768#(<= 4 fibo1_~n)} #71#return; {4664#false} is VALID [2020-07-08 22:04:06,172 INFO L280 TraceCheckUtils]: 59: Hoare triple {4664#false} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647; {4664#false} is VALID [2020-07-08 22:04:06,172 INFO L280 TraceCheckUtils]: 60: Hoare triple {4664#false} #res := #t~ret0 + #t~ret1; {4664#false} is VALID [2020-07-08 22:04:06,173 INFO L280 TraceCheckUtils]: 61: Hoare triple {4664#false} havoc #t~ret1; {4664#false} is VALID [2020-07-08 22:04:06,173 INFO L280 TraceCheckUtils]: 62: Hoare triple {4664#false} havoc #t~ret0; {4664#false} is VALID [2020-07-08 22:04:06,173 INFO L280 TraceCheckUtils]: 63: Hoare triple {4664#false} assume true; {4664#false} is VALID [2020-07-08 22:04:06,173 INFO L275 TraceCheckUtils]: 64: Hoare quadruple {4664#false} {4667#(<= 4 main_~x~0)} #63#return; {4664#false} is VALID [2020-07-08 22:04:06,173 INFO L280 TraceCheckUtils]: 65: Hoare triple {4664#false} assume -2147483648 <= #t~ret4 && #t~ret4 <= 2147483647; {4664#false} is VALID [2020-07-08 22:04:06,174 INFO L280 TraceCheckUtils]: 66: Hoare triple {4664#false} ~result~0 := #t~ret4; {4664#false} is VALID [2020-07-08 22:04:06,174 INFO L280 TraceCheckUtils]: 67: Hoare triple {4664#false} havoc #t~ret4; {4664#false} is VALID [2020-07-08 22:04:06,174 INFO L280 TraceCheckUtils]: 68: Hoare triple {4664#false} assume 3 == ~result~0; {4664#false} is VALID [2020-07-08 22:04:06,174 INFO L280 TraceCheckUtils]: 69: Hoare triple {4664#false} assume !false; {4664#false} is VALID [2020-07-08 22:04:06,178 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 23 proven. 11 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-07-08 22:04:06,178 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [264528935] [2020-07-08 22:04:06,179 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-08 22:04:06,179 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-07-08 22:04:06,182 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605482884] [2020-07-08 22:04:06,184 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 70 [2020-07-08 22:04:06,185 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 22:04:06,185 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 12 states. [2020-07-08 22:04:06,254 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 64 edges. 64 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:04:06,255 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-08 22:04:06,255 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 22:04:06,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-08 22:04:06,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-07-08 22:04:06,256 INFO L87 Difference]: Start difference. First operand 115 states and 161 transitions. Second operand 12 states. [2020-07-08 22:04:07,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:04:07,386 INFO L93 Difference]: Finished difference Result 257 states and 400 transitions. [2020-07-08 22:04:07,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-08 22:04:07,386 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 70 [2020-07-08 22:04:07,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 22:04:07,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-07-08 22:04:07,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 127 transitions. [2020-07-08 22:04:07,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-07-08 22:04:07,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 127 transitions. [2020-07-08 22:04:07,393 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 11 states and 127 transitions. [2020-07-08 22:04:07,557 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 127 edges. 127 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:04:07,566 INFO L225 Difference]: With dead ends: 257 [2020-07-08 22:04:07,566 INFO L226 Difference]: Without dead ends: 151 [2020-07-08 22:04:07,568 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2020-07-08 22:04:07,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2020-07-08 22:04:07,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 133. [2020-07-08 22:04:07,828 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 22:04:07,829 INFO L82 GeneralOperation]: Start isEquivalent. First operand 151 states. Second operand 133 states. [2020-07-08 22:04:07,829 INFO L74 IsIncluded]: Start isIncluded. First operand 151 states. Second operand 133 states. [2020-07-08 22:04:07,829 INFO L87 Difference]: Start difference. First operand 151 states. Second operand 133 states. [2020-07-08 22:04:07,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:04:07,839 INFO L93 Difference]: Finished difference Result 151 states and 217 transitions. [2020-07-08 22:04:07,839 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 217 transitions. [2020-07-08 22:04:07,841 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:04:07,841 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:04:07,841 INFO L74 IsIncluded]: Start isIncluded. First operand 133 states. Second operand 151 states. [2020-07-08 22:04:07,841 INFO L87 Difference]: Start difference. First operand 133 states. Second operand 151 states. [2020-07-08 22:04:07,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:04:07,849 INFO L93 Difference]: Finished difference Result 151 states and 217 transitions. [2020-07-08 22:04:07,849 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 217 transitions. [2020-07-08 22:04:07,851 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:04:07,851 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:04:07,851 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 22:04:07,851 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 22:04:07,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2020-07-08 22:04:07,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 191 transitions. [2020-07-08 22:04:07,858 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 191 transitions. Word has length 70 [2020-07-08 22:04:07,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 22:04:07,858 INFO L479 AbstractCegarLoop]: Abstraction has 133 states and 191 transitions. [2020-07-08 22:04:07,858 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-08 22:04:07,858 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 133 states and 191 transitions. [2020-07-08 22:04:08,093 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 191 edges. 191 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:04:08,093 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 191 transitions. [2020-07-08 22:04:08,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-07-08 22:04:08,096 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 22:04:08,099 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 22:04:08,099 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-07-08 22:04:08,099 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 22:04:08,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 22:04:08,100 INFO L82 PathProgramCache]: Analyzing trace with hash 307755032, now seen corresponding path program 2 times [2020-07-08 22:04:08,100 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 22:04:08,100 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1196611105] [2020-07-08 22:04:08,100 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 22:04:08,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:04:08,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:04:08,167 INFO L280 TraceCheckUtils]: 0: Hoare triple {5912#true} assume true; {5912#true} is VALID [2020-07-08 22:04:08,167 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {5912#true} {5912#true} #59#return; {5912#true} is VALID [2020-07-08 22:04:08,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:04:08,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:04:08,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:04:08,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:04:08,374 INFO L280 TraceCheckUtils]: 0: Hoare triple {5912#true} ~n := #in~n; {6094#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 22:04:08,375 INFO L280 TraceCheckUtils]: 1: Hoare triple {6094#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {6094#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 22:04:08,376 INFO L280 TraceCheckUtils]: 2: Hoare triple {6094#(= fibo2_~n |fibo2_#in~n|)} assume 1 == ~n; {6140#(<= |fibo2_#in~n| 1)} is VALID [2020-07-08 22:04:08,376 INFO L280 TraceCheckUtils]: 3: Hoare triple {6140#(<= |fibo2_#in~n| 1)} #res := 1; {6140#(<= |fibo2_#in~n| 1)} is VALID [2020-07-08 22:04:08,377 INFO L280 TraceCheckUtils]: 4: Hoare triple {6140#(<= |fibo2_#in~n| 1)} assume true; {6140#(<= |fibo2_#in~n| 1)} is VALID [2020-07-08 22:04:08,378 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {6140#(<= |fibo2_#in~n| 1)} {6126#(= fibo1_~n |fibo1_#in~n|)} #69#return; {6133#(and (<= fibo1_~n 2) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 22:04:08,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:04:08,390 INFO L280 TraceCheckUtils]: 0: Hoare triple {5912#true} ~n := #in~n; {5912#true} is VALID [2020-07-08 22:04:08,391 INFO L280 TraceCheckUtils]: 1: Hoare triple {5912#true} assume ~n < 1; {5912#true} is VALID [2020-07-08 22:04:08,391 INFO L280 TraceCheckUtils]: 2: Hoare triple {5912#true} #res := 0; {5912#true} is VALID [2020-07-08 22:04:08,391 INFO L280 TraceCheckUtils]: 3: Hoare triple {5912#true} assume true; {5912#true} is VALID [2020-07-08 22:04:08,392 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {5912#true} {6133#(and (<= fibo1_~n 2) (= fibo1_~n |fibo1_#in~n|))} #71#return; {6139#(<= |fibo1_#in~n| 2)} is VALID [2020-07-08 22:04:08,393 INFO L280 TraceCheckUtils]: 0: Hoare triple {5912#true} ~n := #in~n; {6126#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 22:04:08,393 INFO L280 TraceCheckUtils]: 1: Hoare triple {6126#(= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {6126#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 22:04:08,394 INFO L280 TraceCheckUtils]: 2: Hoare triple {6126#(= fibo1_~n |fibo1_#in~n|)} assume !(1 == ~n); {6126#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 22:04:08,394 INFO L263 TraceCheckUtils]: 3: Hoare triple {6126#(= fibo1_~n |fibo1_#in~n|)} call #t~ret0 := fibo2(~n - 1); {5912#true} is VALID [2020-07-08 22:04:08,395 INFO L280 TraceCheckUtils]: 4: Hoare triple {5912#true} ~n := #in~n; {6094#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 22:04:08,395 INFO L280 TraceCheckUtils]: 5: Hoare triple {6094#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {6094#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 22:04:08,396 INFO L280 TraceCheckUtils]: 6: Hoare triple {6094#(= fibo2_~n |fibo2_#in~n|)} assume 1 == ~n; {6140#(<= |fibo2_#in~n| 1)} is VALID [2020-07-08 22:04:08,396 INFO L280 TraceCheckUtils]: 7: Hoare triple {6140#(<= |fibo2_#in~n| 1)} #res := 1; {6140#(<= |fibo2_#in~n| 1)} is VALID [2020-07-08 22:04:08,397 INFO L280 TraceCheckUtils]: 8: Hoare triple {6140#(<= |fibo2_#in~n| 1)} assume true; {6140#(<= |fibo2_#in~n| 1)} is VALID [2020-07-08 22:04:08,398 INFO L275 TraceCheckUtils]: 9: Hoare quadruple {6140#(<= |fibo2_#in~n| 1)} {6126#(= fibo1_~n |fibo1_#in~n|)} #69#return; {6133#(and (<= fibo1_~n 2) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 22:04:08,399 INFO L280 TraceCheckUtils]: 10: Hoare triple {6133#(and (<= fibo1_~n 2) (= fibo1_~n |fibo1_#in~n|))} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {6133#(and (<= fibo1_~n 2) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 22:04:08,399 INFO L263 TraceCheckUtils]: 11: Hoare triple {6133#(and (<= fibo1_~n 2) (= fibo1_~n |fibo1_#in~n|))} call #t~ret1 := fibo2(~n - 2); {5912#true} is VALID [2020-07-08 22:04:08,399 INFO L280 TraceCheckUtils]: 12: Hoare triple {5912#true} ~n := #in~n; {5912#true} is VALID [2020-07-08 22:04:08,399 INFO L280 TraceCheckUtils]: 13: Hoare triple {5912#true} assume ~n < 1; {5912#true} is VALID [2020-07-08 22:04:08,400 INFO L280 TraceCheckUtils]: 14: Hoare triple {5912#true} #res := 0; {5912#true} is VALID [2020-07-08 22:04:08,400 INFO L280 TraceCheckUtils]: 15: Hoare triple {5912#true} assume true; {5912#true} is VALID [2020-07-08 22:04:08,401 INFO L275 TraceCheckUtils]: 16: Hoare quadruple {5912#true} {6133#(and (<= fibo1_~n 2) (= fibo1_~n |fibo1_#in~n|))} #71#return; {6139#(<= |fibo1_#in~n| 2)} is VALID [2020-07-08 22:04:08,402 INFO L280 TraceCheckUtils]: 17: Hoare triple {6139#(<= |fibo1_#in~n| 2)} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647; {6139#(<= |fibo1_#in~n| 2)} is VALID [2020-07-08 22:04:08,402 INFO L280 TraceCheckUtils]: 18: Hoare triple {6139#(<= |fibo1_#in~n| 2)} #res := #t~ret0 + #t~ret1; {6139#(<= |fibo1_#in~n| 2)} is VALID [2020-07-08 22:04:08,403 INFO L280 TraceCheckUtils]: 19: Hoare triple {6139#(<= |fibo1_#in~n| 2)} havoc #t~ret1; {6139#(<= |fibo1_#in~n| 2)} is VALID [2020-07-08 22:04:08,403 INFO L280 TraceCheckUtils]: 20: Hoare triple {6139#(<= |fibo1_#in~n| 2)} havoc #t~ret0; {6139#(<= |fibo1_#in~n| 2)} is VALID [2020-07-08 22:04:08,404 INFO L280 TraceCheckUtils]: 21: Hoare triple {6139#(<= |fibo1_#in~n| 2)} assume true; {6139#(<= |fibo1_#in~n| 2)} is VALID [2020-07-08 22:04:08,405 INFO L275 TraceCheckUtils]: 22: Hoare quadruple {6139#(<= |fibo1_#in~n| 2)} {6094#(= fibo2_~n |fibo2_#in~n|)} #65#return; {6118#(and (= fibo2_~n |fibo2_#in~n|) (<= fibo2_~n 3))} is VALID [2020-07-08 22:04:08,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:04:08,412 INFO L280 TraceCheckUtils]: 0: Hoare triple {5912#true} ~n := #in~n; {5912#true} is VALID [2020-07-08 22:04:08,413 INFO L280 TraceCheckUtils]: 1: Hoare triple {5912#true} assume !(~n < 1); {5912#true} is VALID [2020-07-08 22:04:08,413 INFO L280 TraceCheckUtils]: 2: Hoare triple {5912#true} assume 1 == ~n; {5912#true} is VALID [2020-07-08 22:04:08,413 INFO L280 TraceCheckUtils]: 3: Hoare triple {5912#true} #res := 1; {5912#true} is VALID [2020-07-08 22:04:08,413 INFO L280 TraceCheckUtils]: 4: Hoare triple {5912#true} assume true; {5912#true} is VALID [2020-07-08 22:04:08,414 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {5912#true} {6118#(and (= fibo2_~n |fibo2_#in~n|) (<= fibo2_~n 3))} #67#return; {6125#(<= |fibo2_#in~n| 3)} is VALID [2020-07-08 22:04:08,415 INFO L280 TraceCheckUtils]: 0: Hoare triple {5912#true} ~n := #in~n; {6094#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 22:04:08,416 INFO L280 TraceCheckUtils]: 1: Hoare triple {6094#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {6094#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 22:04:08,416 INFO L280 TraceCheckUtils]: 2: Hoare triple {6094#(= fibo2_~n |fibo2_#in~n|)} assume !(1 == ~n); {6094#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 22:04:08,417 INFO L263 TraceCheckUtils]: 3: Hoare triple {6094#(= fibo2_~n |fibo2_#in~n|)} call #t~ret2 := fibo1(~n - 1); {5912#true} is VALID [2020-07-08 22:04:08,417 INFO L280 TraceCheckUtils]: 4: Hoare triple {5912#true} ~n := #in~n; {6126#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 22:04:08,418 INFO L280 TraceCheckUtils]: 5: Hoare triple {6126#(= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {6126#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 22:04:08,418 INFO L280 TraceCheckUtils]: 6: Hoare triple {6126#(= fibo1_~n |fibo1_#in~n|)} assume !(1 == ~n); {6126#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 22:04:08,418 INFO L263 TraceCheckUtils]: 7: Hoare triple {6126#(= fibo1_~n |fibo1_#in~n|)} call #t~ret0 := fibo2(~n - 1); {5912#true} is VALID [2020-07-08 22:04:08,419 INFO L280 TraceCheckUtils]: 8: Hoare triple {5912#true} ~n := #in~n; {6094#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 22:04:08,420 INFO L280 TraceCheckUtils]: 9: Hoare triple {6094#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {6094#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 22:04:08,421 INFO L280 TraceCheckUtils]: 10: Hoare triple {6094#(= fibo2_~n |fibo2_#in~n|)} assume 1 == ~n; {6140#(<= |fibo2_#in~n| 1)} is VALID [2020-07-08 22:04:08,421 INFO L280 TraceCheckUtils]: 11: Hoare triple {6140#(<= |fibo2_#in~n| 1)} #res := 1; {6140#(<= |fibo2_#in~n| 1)} is VALID [2020-07-08 22:04:08,422 INFO L280 TraceCheckUtils]: 12: Hoare triple {6140#(<= |fibo2_#in~n| 1)} assume true; {6140#(<= |fibo2_#in~n| 1)} is VALID [2020-07-08 22:04:08,423 INFO L275 TraceCheckUtils]: 13: Hoare quadruple {6140#(<= |fibo2_#in~n| 1)} {6126#(= fibo1_~n |fibo1_#in~n|)} #69#return; {6133#(and (<= fibo1_~n 2) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 22:04:08,423 INFO L280 TraceCheckUtils]: 14: Hoare triple {6133#(and (<= fibo1_~n 2) (= fibo1_~n |fibo1_#in~n|))} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {6133#(and (<= fibo1_~n 2) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 22:04:08,424 INFO L263 TraceCheckUtils]: 15: Hoare triple {6133#(and (<= fibo1_~n 2) (= fibo1_~n |fibo1_#in~n|))} call #t~ret1 := fibo2(~n - 2); {5912#true} is VALID [2020-07-08 22:04:08,424 INFO L280 TraceCheckUtils]: 16: Hoare triple {5912#true} ~n := #in~n; {5912#true} is VALID [2020-07-08 22:04:08,424 INFO L280 TraceCheckUtils]: 17: Hoare triple {5912#true} assume ~n < 1; {5912#true} is VALID [2020-07-08 22:04:08,424 INFO L280 TraceCheckUtils]: 18: Hoare triple {5912#true} #res := 0; {5912#true} is VALID [2020-07-08 22:04:08,425 INFO L280 TraceCheckUtils]: 19: Hoare triple {5912#true} assume true; {5912#true} is VALID [2020-07-08 22:04:08,426 INFO L275 TraceCheckUtils]: 20: Hoare quadruple {5912#true} {6133#(and (<= fibo1_~n 2) (= fibo1_~n |fibo1_#in~n|))} #71#return; {6139#(<= |fibo1_#in~n| 2)} is VALID [2020-07-08 22:04:08,426 INFO L280 TraceCheckUtils]: 21: Hoare triple {6139#(<= |fibo1_#in~n| 2)} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647; {6139#(<= |fibo1_#in~n| 2)} is VALID [2020-07-08 22:04:08,427 INFO L280 TraceCheckUtils]: 22: Hoare triple {6139#(<= |fibo1_#in~n| 2)} #res := #t~ret0 + #t~ret1; {6139#(<= |fibo1_#in~n| 2)} is VALID [2020-07-08 22:04:08,427 INFO L280 TraceCheckUtils]: 23: Hoare triple {6139#(<= |fibo1_#in~n| 2)} havoc #t~ret1; {6139#(<= |fibo1_#in~n| 2)} is VALID [2020-07-08 22:04:08,428 INFO L280 TraceCheckUtils]: 24: Hoare triple {6139#(<= |fibo1_#in~n| 2)} havoc #t~ret0; {6139#(<= |fibo1_#in~n| 2)} is VALID [2020-07-08 22:04:08,428 INFO L280 TraceCheckUtils]: 25: Hoare triple {6139#(<= |fibo1_#in~n| 2)} assume true; {6139#(<= |fibo1_#in~n| 2)} is VALID [2020-07-08 22:04:08,429 INFO L275 TraceCheckUtils]: 26: Hoare quadruple {6139#(<= |fibo1_#in~n| 2)} {6094#(= fibo2_~n |fibo2_#in~n|)} #65#return; {6118#(and (= fibo2_~n |fibo2_#in~n|) (<= fibo2_~n 3))} is VALID [2020-07-08 22:04:08,430 INFO L280 TraceCheckUtils]: 27: Hoare triple {6118#(and (= fibo2_~n |fibo2_#in~n|) (<= fibo2_~n 3))} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {6118#(and (= fibo2_~n |fibo2_#in~n|) (<= fibo2_~n 3))} is VALID [2020-07-08 22:04:08,430 INFO L263 TraceCheckUtils]: 28: Hoare triple {6118#(and (= fibo2_~n |fibo2_#in~n|) (<= fibo2_~n 3))} call #t~ret3 := fibo1(~n - 2); {5912#true} is VALID [2020-07-08 22:04:08,430 INFO L280 TraceCheckUtils]: 29: Hoare triple {5912#true} ~n := #in~n; {5912#true} is VALID [2020-07-08 22:04:08,431 INFO L280 TraceCheckUtils]: 30: Hoare triple {5912#true} assume !(~n < 1); {5912#true} is VALID [2020-07-08 22:04:08,431 INFO L280 TraceCheckUtils]: 31: Hoare triple {5912#true} assume 1 == ~n; {5912#true} is VALID [2020-07-08 22:04:08,431 INFO L280 TraceCheckUtils]: 32: Hoare triple {5912#true} #res := 1; {5912#true} is VALID [2020-07-08 22:04:08,431 INFO L280 TraceCheckUtils]: 33: Hoare triple {5912#true} assume true; {5912#true} is VALID [2020-07-08 22:04:08,432 INFO L275 TraceCheckUtils]: 34: Hoare quadruple {5912#true} {6118#(and (= fibo2_~n |fibo2_#in~n|) (<= fibo2_~n 3))} #67#return; {6125#(<= |fibo2_#in~n| 3)} is VALID [2020-07-08 22:04:08,433 INFO L280 TraceCheckUtils]: 35: Hoare triple {6125#(<= |fibo2_#in~n| 3)} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647; {6125#(<= |fibo2_#in~n| 3)} is VALID [2020-07-08 22:04:08,433 INFO L280 TraceCheckUtils]: 36: Hoare triple {6125#(<= |fibo2_#in~n| 3)} #res := #t~ret2 + #t~ret3; {6125#(<= |fibo2_#in~n| 3)} is VALID [2020-07-08 22:04:08,434 INFO L280 TraceCheckUtils]: 37: Hoare triple {6125#(<= |fibo2_#in~n| 3)} havoc #t~ret2; {6125#(<= |fibo2_#in~n| 3)} is VALID [2020-07-08 22:04:08,434 INFO L280 TraceCheckUtils]: 38: Hoare triple {6125#(<= |fibo2_#in~n| 3)} havoc #t~ret3; {6125#(<= |fibo2_#in~n| 3)} is VALID [2020-07-08 22:04:08,435 INFO L280 TraceCheckUtils]: 39: Hoare triple {6125#(<= |fibo2_#in~n| 3)} assume true; {6125#(<= |fibo2_#in~n| 3)} is VALID [2020-07-08 22:04:08,436 INFO L275 TraceCheckUtils]: 40: Hoare quadruple {6125#(<= |fibo2_#in~n| 3)} {5912#true} #69#return; {6052#(<= fibo1_~n 4)} is VALID [2020-07-08 22:04:08,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:04:08,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:04:08,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:04:08,603 INFO L280 TraceCheckUtils]: 0: Hoare triple {5912#true} ~n := #in~n; {5912#true} is VALID [2020-07-08 22:04:08,603 INFO L280 TraceCheckUtils]: 1: Hoare triple {5912#true} assume !(~n < 1); {5912#true} is VALID [2020-07-08 22:04:08,603 INFO L280 TraceCheckUtils]: 2: Hoare triple {5912#true} assume 1 == ~n; {5912#true} is VALID [2020-07-08 22:04:08,604 INFO L280 TraceCheckUtils]: 3: Hoare triple {5912#true} #res := 1; {5912#true} is VALID [2020-07-08 22:04:08,604 INFO L280 TraceCheckUtils]: 4: Hoare triple {5912#true} assume true; {5912#true} is VALID [2020-07-08 22:04:08,605 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {5912#true} {6173#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} #69#return; {6173#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 22:04:08,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:04:08,614 INFO L280 TraceCheckUtils]: 0: Hoare triple {5912#true} ~n := #in~n; {5912#true} is VALID [2020-07-08 22:04:08,614 INFO L280 TraceCheckUtils]: 1: Hoare triple {5912#true} assume ~n < 1; {5912#true} is VALID [2020-07-08 22:04:08,615 INFO L280 TraceCheckUtils]: 2: Hoare triple {5912#true} #res := 0; {5912#true} is VALID [2020-07-08 22:04:08,615 INFO L280 TraceCheckUtils]: 3: Hoare triple {5912#true} assume true; {5912#true} is VALID [2020-07-08 22:04:08,617 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {5912#true} {6173#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} #71#return; {6185#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 22:04:08,617 INFO L280 TraceCheckUtils]: 0: Hoare triple {5912#true} ~n := #in~n; {6126#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 22:04:08,618 INFO L280 TraceCheckUtils]: 1: Hoare triple {6126#(= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {6172#(and (< 0 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 22:04:08,619 INFO L280 TraceCheckUtils]: 2: Hoare triple {6172#(and (< 0 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} assume !(1 == ~n); {6173#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 22:04:08,619 INFO L263 TraceCheckUtils]: 3: Hoare triple {6173#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} call #t~ret0 := fibo2(~n - 1); {5912#true} is VALID [2020-07-08 22:04:08,620 INFO L280 TraceCheckUtils]: 4: Hoare triple {5912#true} ~n := #in~n; {5912#true} is VALID [2020-07-08 22:04:08,620 INFO L280 TraceCheckUtils]: 5: Hoare triple {5912#true} assume !(~n < 1); {5912#true} is VALID [2020-07-08 22:04:08,620 INFO L280 TraceCheckUtils]: 6: Hoare triple {5912#true} assume 1 == ~n; {5912#true} is VALID [2020-07-08 22:04:08,620 INFO L280 TraceCheckUtils]: 7: Hoare triple {5912#true} #res := 1; {5912#true} is VALID [2020-07-08 22:04:08,621 INFO L280 TraceCheckUtils]: 8: Hoare triple {5912#true} assume true; {5912#true} is VALID [2020-07-08 22:04:08,622 INFO L275 TraceCheckUtils]: 9: Hoare quadruple {5912#true} {6173#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} #69#return; {6173#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 22:04:08,623 INFO L280 TraceCheckUtils]: 10: Hoare triple {6173#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {6173#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 22:04:08,623 INFO L263 TraceCheckUtils]: 11: Hoare triple {6173#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} call #t~ret1 := fibo2(~n - 2); {5912#true} is VALID [2020-07-08 22:04:08,623 INFO L280 TraceCheckUtils]: 12: Hoare triple {5912#true} ~n := #in~n; {5912#true} is VALID [2020-07-08 22:04:08,623 INFO L280 TraceCheckUtils]: 13: Hoare triple {5912#true} assume ~n < 1; {5912#true} is VALID [2020-07-08 22:04:08,624 INFO L280 TraceCheckUtils]: 14: Hoare triple {5912#true} #res := 0; {5912#true} is VALID [2020-07-08 22:04:08,624 INFO L280 TraceCheckUtils]: 15: Hoare triple {5912#true} assume true; {5912#true} is VALID [2020-07-08 22:04:08,625 INFO L275 TraceCheckUtils]: 16: Hoare quadruple {5912#true} {6173#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} #71#return; {6185#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 22:04:08,626 INFO L280 TraceCheckUtils]: 17: Hoare triple {6185#(<= 2 |fibo1_#in~n|)} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647; {6185#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 22:04:08,627 INFO L280 TraceCheckUtils]: 18: Hoare triple {6185#(<= 2 |fibo1_#in~n|)} #res := #t~ret0 + #t~ret1; {6185#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 22:04:08,627 INFO L280 TraceCheckUtils]: 19: Hoare triple {6185#(<= 2 |fibo1_#in~n|)} havoc #t~ret1; {6185#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 22:04:08,628 INFO L280 TraceCheckUtils]: 20: Hoare triple {6185#(<= 2 |fibo1_#in~n|)} havoc #t~ret0; {6185#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 22:04:08,628 INFO L280 TraceCheckUtils]: 21: Hoare triple {6185#(<= 2 |fibo1_#in~n|)} assume true; {6185#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 22:04:08,629 INFO L275 TraceCheckUtils]: 22: Hoare quadruple {6185#(<= 2 |fibo1_#in~n|)} {6094#(= fibo2_~n |fibo2_#in~n|)} #65#return; {6164#(and (= fibo2_~n |fibo2_#in~n|) (<= 3 fibo2_~n))} is VALID [2020-07-08 22:04:08,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:04:08,636 INFO L280 TraceCheckUtils]: 0: Hoare triple {5912#true} ~n := #in~n; {5912#true} is VALID [2020-07-08 22:04:08,637 INFO L280 TraceCheckUtils]: 1: Hoare triple {5912#true} assume !(~n < 1); {5912#true} is VALID [2020-07-08 22:04:08,637 INFO L280 TraceCheckUtils]: 2: Hoare triple {5912#true} assume 1 == ~n; {5912#true} is VALID [2020-07-08 22:04:08,637 INFO L280 TraceCheckUtils]: 3: Hoare triple {5912#true} #res := 1; {5912#true} is VALID [2020-07-08 22:04:08,637 INFO L280 TraceCheckUtils]: 4: Hoare triple {5912#true} assume true; {5912#true} is VALID [2020-07-08 22:04:08,638 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {5912#true} {6164#(and (= fibo2_~n |fibo2_#in~n|) (<= 3 fibo2_~n))} #67#return; {6171#(<= 3 |fibo2_#in~n|)} is VALID [2020-07-08 22:04:08,639 INFO L280 TraceCheckUtils]: 0: Hoare triple {5912#true} ~n := #in~n; {6094#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 22:04:08,640 INFO L280 TraceCheckUtils]: 1: Hoare triple {6094#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {6094#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 22:04:08,640 INFO L280 TraceCheckUtils]: 2: Hoare triple {6094#(= fibo2_~n |fibo2_#in~n|)} assume !(1 == ~n); {6094#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 22:04:08,640 INFO L263 TraceCheckUtils]: 3: Hoare triple {6094#(= fibo2_~n |fibo2_#in~n|)} call #t~ret2 := fibo1(~n - 1); {5912#true} is VALID [2020-07-08 22:04:08,641 INFO L280 TraceCheckUtils]: 4: Hoare triple {5912#true} ~n := #in~n; {6126#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 22:04:08,642 INFO L280 TraceCheckUtils]: 5: Hoare triple {6126#(= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {6172#(and (< 0 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 22:04:08,642 INFO L280 TraceCheckUtils]: 6: Hoare triple {6172#(and (< 0 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} assume !(1 == ~n); {6173#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 22:04:08,643 INFO L263 TraceCheckUtils]: 7: Hoare triple {6173#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} call #t~ret0 := fibo2(~n - 1); {5912#true} is VALID [2020-07-08 22:04:08,643 INFO L280 TraceCheckUtils]: 8: Hoare triple {5912#true} ~n := #in~n; {5912#true} is VALID [2020-07-08 22:04:08,643 INFO L280 TraceCheckUtils]: 9: Hoare triple {5912#true} assume !(~n < 1); {5912#true} is VALID [2020-07-08 22:04:08,643 INFO L280 TraceCheckUtils]: 10: Hoare triple {5912#true} assume 1 == ~n; {5912#true} is VALID [2020-07-08 22:04:08,657 INFO L280 TraceCheckUtils]: 11: Hoare triple {5912#true} #res := 1; {5912#true} is VALID [2020-07-08 22:04:08,657 INFO L280 TraceCheckUtils]: 12: Hoare triple {5912#true} assume true; {5912#true} is VALID [2020-07-08 22:04:08,660 INFO L275 TraceCheckUtils]: 13: Hoare quadruple {5912#true} {6173#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} #69#return; {6173#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 22:04:08,661 INFO L280 TraceCheckUtils]: 14: Hoare triple {6173#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {6173#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 22:04:08,661 INFO L263 TraceCheckUtils]: 15: Hoare triple {6173#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} call #t~ret1 := fibo2(~n - 2); {5912#true} is VALID [2020-07-08 22:04:08,662 INFO L280 TraceCheckUtils]: 16: Hoare triple {5912#true} ~n := #in~n; {5912#true} is VALID [2020-07-08 22:04:08,662 INFO L280 TraceCheckUtils]: 17: Hoare triple {5912#true} assume ~n < 1; {5912#true} is VALID [2020-07-08 22:04:08,662 INFO L280 TraceCheckUtils]: 18: Hoare triple {5912#true} #res := 0; {5912#true} is VALID [2020-07-08 22:04:08,662 INFO L280 TraceCheckUtils]: 19: Hoare triple {5912#true} assume true; {5912#true} is VALID [2020-07-08 22:04:08,664 INFO L275 TraceCheckUtils]: 20: Hoare quadruple {5912#true} {6173#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} #71#return; {6185#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 22:04:08,664 INFO L280 TraceCheckUtils]: 21: Hoare triple {6185#(<= 2 |fibo1_#in~n|)} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647; {6185#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 22:04:08,665 INFO L280 TraceCheckUtils]: 22: Hoare triple {6185#(<= 2 |fibo1_#in~n|)} #res := #t~ret0 + #t~ret1; {6185#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 22:04:08,666 INFO L280 TraceCheckUtils]: 23: Hoare triple {6185#(<= 2 |fibo1_#in~n|)} havoc #t~ret1; {6185#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 22:04:08,666 INFO L280 TraceCheckUtils]: 24: Hoare triple {6185#(<= 2 |fibo1_#in~n|)} havoc #t~ret0; {6185#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 22:04:08,667 INFO L280 TraceCheckUtils]: 25: Hoare triple {6185#(<= 2 |fibo1_#in~n|)} assume true; {6185#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 22:04:08,668 INFO L275 TraceCheckUtils]: 26: Hoare quadruple {6185#(<= 2 |fibo1_#in~n|)} {6094#(= fibo2_~n |fibo2_#in~n|)} #65#return; {6164#(and (= fibo2_~n |fibo2_#in~n|) (<= 3 fibo2_~n))} is VALID [2020-07-08 22:04:08,669 INFO L280 TraceCheckUtils]: 27: Hoare triple {6164#(and (= fibo2_~n |fibo2_#in~n|) (<= 3 fibo2_~n))} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {6164#(and (= fibo2_~n |fibo2_#in~n|) (<= 3 fibo2_~n))} is VALID [2020-07-08 22:04:08,669 INFO L263 TraceCheckUtils]: 28: Hoare triple {6164#(and (= fibo2_~n |fibo2_#in~n|) (<= 3 fibo2_~n))} call #t~ret3 := fibo1(~n - 2); {5912#true} is VALID [2020-07-08 22:04:08,670 INFO L280 TraceCheckUtils]: 29: Hoare triple {5912#true} ~n := #in~n; {5912#true} is VALID [2020-07-08 22:04:08,670 INFO L280 TraceCheckUtils]: 30: Hoare triple {5912#true} assume !(~n < 1); {5912#true} is VALID [2020-07-08 22:04:08,670 INFO L280 TraceCheckUtils]: 31: Hoare triple {5912#true} assume 1 == ~n; {5912#true} is VALID [2020-07-08 22:04:08,671 INFO L280 TraceCheckUtils]: 32: Hoare triple {5912#true} #res := 1; {5912#true} is VALID [2020-07-08 22:04:08,671 INFO L280 TraceCheckUtils]: 33: Hoare triple {5912#true} assume true; {5912#true} is VALID [2020-07-08 22:04:08,672 INFO L275 TraceCheckUtils]: 34: Hoare quadruple {5912#true} {6164#(and (= fibo2_~n |fibo2_#in~n|) (<= 3 fibo2_~n))} #67#return; {6171#(<= 3 |fibo2_#in~n|)} is VALID [2020-07-08 22:04:08,673 INFO L280 TraceCheckUtils]: 35: Hoare triple {6171#(<= 3 |fibo2_#in~n|)} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647; {6171#(<= 3 |fibo2_#in~n|)} is VALID [2020-07-08 22:04:08,673 INFO L280 TraceCheckUtils]: 36: Hoare triple {6171#(<= 3 |fibo2_#in~n|)} #res := #t~ret2 + #t~ret3; {6171#(<= 3 |fibo2_#in~n|)} is VALID [2020-07-08 22:04:08,674 INFO L280 TraceCheckUtils]: 37: Hoare triple {6171#(<= 3 |fibo2_#in~n|)} havoc #t~ret2; {6171#(<= 3 |fibo2_#in~n|)} is VALID [2020-07-08 22:04:08,675 INFO L280 TraceCheckUtils]: 38: Hoare triple {6171#(<= 3 |fibo2_#in~n|)} havoc #t~ret3; {6171#(<= 3 |fibo2_#in~n|)} is VALID [2020-07-08 22:04:08,675 INFO L280 TraceCheckUtils]: 39: Hoare triple {6171#(<= 3 |fibo2_#in~n|)} assume true; {6171#(<= 3 |fibo2_#in~n|)} is VALID [2020-07-08 22:04:08,676 INFO L275 TraceCheckUtils]: 40: Hoare quadruple {6171#(<= 3 |fibo2_#in~n|)} {6052#(<= fibo1_~n 4)} #71#return; {5913#false} is VALID [2020-07-08 22:04:08,678 INFO L280 TraceCheckUtils]: 0: Hoare triple {5912#true} ~n := #in~n; {5912#true} is VALID [2020-07-08 22:04:08,679 INFO L280 TraceCheckUtils]: 1: Hoare triple {5912#true} assume !(~n < 1); {5912#true} is VALID [2020-07-08 22:04:08,679 INFO L280 TraceCheckUtils]: 2: Hoare triple {5912#true} assume !(1 == ~n); {5912#true} is VALID [2020-07-08 22:04:08,679 INFO L263 TraceCheckUtils]: 3: Hoare triple {5912#true} call #t~ret0 := fibo2(~n - 1); {5912#true} is VALID [2020-07-08 22:04:08,680 INFO L280 TraceCheckUtils]: 4: Hoare triple {5912#true} ~n := #in~n; {6094#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 22:04:08,680 INFO L280 TraceCheckUtils]: 5: Hoare triple {6094#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {6094#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 22:04:08,681 INFO L280 TraceCheckUtils]: 6: Hoare triple {6094#(= fibo2_~n |fibo2_#in~n|)} assume !(1 == ~n); {6094#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 22:04:08,681 INFO L263 TraceCheckUtils]: 7: Hoare triple {6094#(= fibo2_~n |fibo2_#in~n|)} call #t~ret2 := fibo1(~n - 1); {5912#true} is VALID [2020-07-08 22:04:08,682 INFO L280 TraceCheckUtils]: 8: Hoare triple {5912#true} ~n := #in~n; {6126#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 22:04:08,682 INFO L280 TraceCheckUtils]: 9: Hoare triple {6126#(= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {6126#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 22:04:08,683 INFO L280 TraceCheckUtils]: 10: Hoare triple {6126#(= fibo1_~n |fibo1_#in~n|)} assume !(1 == ~n); {6126#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 22:04:08,683 INFO L263 TraceCheckUtils]: 11: Hoare triple {6126#(= fibo1_~n |fibo1_#in~n|)} call #t~ret0 := fibo2(~n - 1); {5912#true} is VALID [2020-07-08 22:04:08,684 INFO L280 TraceCheckUtils]: 12: Hoare triple {5912#true} ~n := #in~n; {6094#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 22:04:08,684 INFO L280 TraceCheckUtils]: 13: Hoare triple {6094#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {6094#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 22:04:08,685 INFO L280 TraceCheckUtils]: 14: Hoare triple {6094#(= fibo2_~n |fibo2_#in~n|)} assume 1 == ~n; {6140#(<= |fibo2_#in~n| 1)} is VALID [2020-07-08 22:04:08,685 INFO L280 TraceCheckUtils]: 15: Hoare triple {6140#(<= |fibo2_#in~n| 1)} #res := 1; {6140#(<= |fibo2_#in~n| 1)} is VALID [2020-07-08 22:04:08,686 INFO L280 TraceCheckUtils]: 16: Hoare triple {6140#(<= |fibo2_#in~n| 1)} assume true; {6140#(<= |fibo2_#in~n| 1)} is VALID [2020-07-08 22:04:08,687 INFO L275 TraceCheckUtils]: 17: Hoare quadruple {6140#(<= |fibo2_#in~n| 1)} {6126#(= fibo1_~n |fibo1_#in~n|)} #69#return; {6133#(and (<= fibo1_~n 2) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 22:04:08,688 INFO L280 TraceCheckUtils]: 18: Hoare triple {6133#(and (<= fibo1_~n 2) (= fibo1_~n |fibo1_#in~n|))} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {6133#(and (<= fibo1_~n 2) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 22:04:08,688 INFO L263 TraceCheckUtils]: 19: Hoare triple {6133#(and (<= fibo1_~n 2) (= fibo1_~n |fibo1_#in~n|))} call #t~ret1 := fibo2(~n - 2); {5912#true} is VALID [2020-07-08 22:04:08,689 INFO L280 TraceCheckUtils]: 20: Hoare triple {5912#true} ~n := #in~n; {5912#true} is VALID [2020-07-08 22:04:08,689 INFO L280 TraceCheckUtils]: 21: Hoare triple {5912#true} assume ~n < 1; {5912#true} is VALID [2020-07-08 22:04:08,689 INFO L280 TraceCheckUtils]: 22: Hoare triple {5912#true} #res := 0; {5912#true} is VALID [2020-07-08 22:04:08,689 INFO L280 TraceCheckUtils]: 23: Hoare triple {5912#true} assume true; {5912#true} is VALID [2020-07-08 22:04:08,690 INFO L275 TraceCheckUtils]: 24: Hoare quadruple {5912#true} {6133#(and (<= fibo1_~n 2) (= fibo1_~n |fibo1_#in~n|))} #71#return; {6139#(<= |fibo1_#in~n| 2)} is VALID [2020-07-08 22:04:08,691 INFO L280 TraceCheckUtils]: 25: Hoare triple {6139#(<= |fibo1_#in~n| 2)} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647; {6139#(<= |fibo1_#in~n| 2)} is VALID [2020-07-08 22:04:08,692 INFO L280 TraceCheckUtils]: 26: Hoare triple {6139#(<= |fibo1_#in~n| 2)} #res := #t~ret0 + #t~ret1; {6139#(<= |fibo1_#in~n| 2)} is VALID [2020-07-08 22:04:08,692 INFO L280 TraceCheckUtils]: 27: Hoare triple {6139#(<= |fibo1_#in~n| 2)} havoc #t~ret1; {6139#(<= |fibo1_#in~n| 2)} is VALID [2020-07-08 22:04:08,693 INFO L280 TraceCheckUtils]: 28: Hoare triple {6139#(<= |fibo1_#in~n| 2)} havoc #t~ret0; {6139#(<= |fibo1_#in~n| 2)} is VALID [2020-07-08 22:04:08,693 INFO L280 TraceCheckUtils]: 29: Hoare triple {6139#(<= |fibo1_#in~n| 2)} assume true; {6139#(<= |fibo1_#in~n| 2)} is VALID [2020-07-08 22:04:08,695 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {6139#(<= |fibo1_#in~n| 2)} {6094#(= fibo2_~n |fibo2_#in~n|)} #65#return; {6118#(and (= fibo2_~n |fibo2_#in~n|) (<= fibo2_~n 3))} is VALID [2020-07-08 22:04:08,695 INFO L280 TraceCheckUtils]: 31: Hoare triple {6118#(and (= fibo2_~n |fibo2_#in~n|) (<= fibo2_~n 3))} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {6118#(and (= fibo2_~n |fibo2_#in~n|) (<= fibo2_~n 3))} is VALID [2020-07-08 22:04:08,696 INFO L263 TraceCheckUtils]: 32: Hoare triple {6118#(and (= fibo2_~n |fibo2_#in~n|) (<= fibo2_~n 3))} call #t~ret3 := fibo1(~n - 2); {5912#true} is VALID [2020-07-08 22:04:08,696 INFO L280 TraceCheckUtils]: 33: Hoare triple {5912#true} ~n := #in~n; {5912#true} is VALID [2020-07-08 22:04:08,696 INFO L280 TraceCheckUtils]: 34: Hoare triple {5912#true} assume !(~n < 1); {5912#true} is VALID [2020-07-08 22:04:08,696 INFO L280 TraceCheckUtils]: 35: Hoare triple {5912#true} assume 1 == ~n; {5912#true} is VALID [2020-07-08 22:04:08,697 INFO L280 TraceCheckUtils]: 36: Hoare triple {5912#true} #res := 1; {5912#true} is VALID [2020-07-08 22:04:08,697 INFO L280 TraceCheckUtils]: 37: Hoare triple {5912#true} assume true; {5912#true} is VALID [2020-07-08 22:04:08,698 INFO L275 TraceCheckUtils]: 38: Hoare quadruple {5912#true} {6118#(and (= fibo2_~n |fibo2_#in~n|) (<= fibo2_~n 3))} #67#return; {6125#(<= |fibo2_#in~n| 3)} is VALID [2020-07-08 22:04:08,699 INFO L280 TraceCheckUtils]: 39: Hoare triple {6125#(<= |fibo2_#in~n| 3)} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647; {6125#(<= |fibo2_#in~n| 3)} is VALID [2020-07-08 22:04:08,699 INFO L280 TraceCheckUtils]: 40: Hoare triple {6125#(<= |fibo2_#in~n| 3)} #res := #t~ret2 + #t~ret3; {6125#(<= |fibo2_#in~n| 3)} is VALID [2020-07-08 22:04:08,700 INFO L280 TraceCheckUtils]: 41: Hoare triple {6125#(<= |fibo2_#in~n| 3)} havoc #t~ret2; {6125#(<= |fibo2_#in~n| 3)} is VALID [2020-07-08 22:04:08,700 INFO L280 TraceCheckUtils]: 42: Hoare triple {6125#(<= |fibo2_#in~n| 3)} havoc #t~ret3; {6125#(<= |fibo2_#in~n| 3)} is VALID [2020-07-08 22:04:08,701 INFO L280 TraceCheckUtils]: 43: Hoare triple {6125#(<= |fibo2_#in~n| 3)} assume true; {6125#(<= |fibo2_#in~n| 3)} is VALID [2020-07-08 22:04:08,702 INFO L275 TraceCheckUtils]: 44: Hoare quadruple {6125#(<= |fibo2_#in~n| 3)} {5912#true} #69#return; {6052#(<= fibo1_~n 4)} is VALID [2020-07-08 22:04:08,703 INFO L280 TraceCheckUtils]: 45: Hoare triple {6052#(<= fibo1_~n 4)} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {6052#(<= fibo1_~n 4)} is VALID [2020-07-08 22:04:08,703 INFO L263 TraceCheckUtils]: 46: Hoare triple {6052#(<= fibo1_~n 4)} call #t~ret1 := fibo2(~n - 2); {5912#true} is VALID [2020-07-08 22:04:08,704 INFO L280 TraceCheckUtils]: 47: Hoare triple {5912#true} ~n := #in~n; {6094#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 22:04:08,704 INFO L280 TraceCheckUtils]: 48: Hoare triple {6094#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {6094#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 22:04:08,705 INFO L280 TraceCheckUtils]: 49: Hoare triple {6094#(= fibo2_~n |fibo2_#in~n|)} assume !(1 == ~n); {6094#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 22:04:08,705 INFO L263 TraceCheckUtils]: 50: Hoare triple {6094#(= fibo2_~n |fibo2_#in~n|)} call #t~ret2 := fibo1(~n - 1); {5912#true} is VALID [2020-07-08 22:04:08,706 INFO L280 TraceCheckUtils]: 51: Hoare triple {5912#true} ~n := #in~n; {6126#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 22:04:08,707 INFO L280 TraceCheckUtils]: 52: Hoare triple {6126#(= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {6172#(and (< 0 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 22:04:08,708 INFO L280 TraceCheckUtils]: 53: Hoare triple {6172#(and (< 0 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} assume !(1 == ~n); {6173#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 22:04:08,708 INFO L263 TraceCheckUtils]: 54: Hoare triple {6173#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} call #t~ret0 := fibo2(~n - 1); {5912#true} is VALID [2020-07-08 22:04:08,708 INFO L280 TraceCheckUtils]: 55: Hoare triple {5912#true} ~n := #in~n; {5912#true} is VALID [2020-07-08 22:04:08,708 INFO L280 TraceCheckUtils]: 56: Hoare triple {5912#true} assume !(~n < 1); {5912#true} is VALID [2020-07-08 22:04:08,708 INFO L280 TraceCheckUtils]: 57: Hoare triple {5912#true} assume 1 == ~n; {5912#true} is VALID [2020-07-08 22:04:08,709 INFO L280 TraceCheckUtils]: 58: Hoare triple {5912#true} #res := 1; {5912#true} is VALID [2020-07-08 22:04:08,709 INFO L280 TraceCheckUtils]: 59: Hoare triple {5912#true} assume true; {5912#true} is VALID [2020-07-08 22:04:08,710 INFO L275 TraceCheckUtils]: 60: Hoare quadruple {5912#true} {6173#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} #69#return; {6173#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 22:04:08,711 INFO L280 TraceCheckUtils]: 61: Hoare triple {6173#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {6173#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 22:04:08,711 INFO L263 TraceCheckUtils]: 62: Hoare triple {6173#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} call #t~ret1 := fibo2(~n - 2); {5912#true} is VALID [2020-07-08 22:04:08,711 INFO L280 TraceCheckUtils]: 63: Hoare triple {5912#true} ~n := #in~n; {5912#true} is VALID [2020-07-08 22:04:08,711 INFO L280 TraceCheckUtils]: 64: Hoare triple {5912#true} assume ~n < 1; {5912#true} is VALID [2020-07-08 22:04:08,712 INFO L280 TraceCheckUtils]: 65: Hoare triple {5912#true} #res := 0; {5912#true} is VALID [2020-07-08 22:04:08,712 INFO L280 TraceCheckUtils]: 66: Hoare triple {5912#true} assume true; {5912#true} is VALID [2020-07-08 22:04:08,713 INFO L275 TraceCheckUtils]: 67: Hoare quadruple {5912#true} {6173#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} #71#return; {6185#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 22:04:08,714 INFO L280 TraceCheckUtils]: 68: Hoare triple {6185#(<= 2 |fibo1_#in~n|)} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647; {6185#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 22:04:08,715 INFO L280 TraceCheckUtils]: 69: Hoare triple {6185#(<= 2 |fibo1_#in~n|)} #res := #t~ret0 + #t~ret1; {6185#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 22:04:08,715 INFO L280 TraceCheckUtils]: 70: Hoare triple {6185#(<= 2 |fibo1_#in~n|)} havoc #t~ret1; {6185#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 22:04:08,716 INFO L280 TraceCheckUtils]: 71: Hoare triple {6185#(<= 2 |fibo1_#in~n|)} havoc #t~ret0; {6185#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 22:04:08,716 INFO L280 TraceCheckUtils]: 72: Hoare triple {6185#(<= 2 |fibo1_#in~n|)} assume true; {6185#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 22:04:08,718 INFO L275 TraceCheckUtils]: 73: Hoare quadruple {6185#(<= 2 |fibo1_#in~n|)} {6094#(= fibo2_~n |fibo2_#in~n|)} #65#return; {6164#(and (= fibo2_~n |fibo2_#in~n|) (<= 3 fibo2_~n))} is VALID [2020-07-08 22:04:08,718 INFO L280 TraceCheckUtils]: 74: Hoare triple {6164#(and (= fibo2_~n |fibo2_#in~n|) (<= 3 fibo2_~n))} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {6164#(and (= fibo2_~n |fibo2_#in~n|) (<= 3 fibo2_~n))} is VALID [2020-07-08 22:04:08,719 INFO L263 TraceCheckUtils]: 75: Hoare triple {6164#(and (= fibo2_~n |fibo2_#in~n|) (<= 3 fibo2_~n))} call #t~ret3 := fibo1(~n - 2); {5912#true} is VALID [2020-07-08 22:04:08,719 INFO L280 TraceCheckUtils]: 76: Hoare triple {5912#true} ~n := #in~n; {5912#true} is VALID [2020-07-08 22:04:08,719 INFO L280 TraceCheckUtils]: 77: Hoare triple {5912#true} assume !(~n < 1); {5912#true} is VALID [2020-07-08 22:04:08,719 INFO L280 TraceCheckUtils]: 78: Hoare triple {5912#true} assume 1 == ~n; {5912#true} is VALID [2020-07-08 22:04:08,720 INFO L280 TraceCheckUtils]: 79: Hoare triple {5912#true} #res := 1; {5912#true} is VALID [2020-07-08 22:04:08,720 INFO L280 TraceCheckUtils]: 80: Hoare triple {5912#true} assume true; {5912#true} is VALID [2020-07-08 22:04:08,722 INFO L275 TraceCheckUtils]: 81: Hoare quadruple {5912#true} {6164#(and (= fibo2_~n |fibo2_#in~n|) (<= 3 fibo2_~n))} #67#return; {6171#(<= 3 |fibo2_#in~n|)} is VALID [2020-07-08 22:04:08,723 INFO L280 TraceCheckUtils]: 82: Hoare triple {6171#(<= 3 |fibo2_#in~n|)} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647; {6171#(<= 3 |fibo2_#in~n|)} is VALID [2020-07-08 22:04:08,723 INFO L280 TraceCheckUtils]: 83: Hoare triple {6171#(<= 3 |fibo2_#in~n|)} #res := #t~ret2 + #t~ret3; {6171#(<= 3 |fibo2_#in~n|)} is VALID [2020-07-08 22:04:08,724 INFO L280 TraceCheckUtils]: 84: Hoare triple {6171#(<= 3 |fibo2_#in~n|)} havoc #t~ret2; {6171#(<= 3 |fibo2_#in~n|)} is VALID [2020-07-08 22:04:08,724 INFO L280 TraceCheckUtils]: 85: Hoare triple {6171#(<= 3 |fibo2_#in~n|)} havoc #t~ret3; {6171#(<= 3 |fibo2_#in~n|)} is VALID [2020-07-08 22:04:08,725 INFO L280 TraceCheckUtils]: 86: Hoare triple {6171#(<= 3 |fibo2_#in~n|)} assume true; {6171#(<= 3 |fibo2_#in~n|)} is VALID [2020-07-08 22:04:08,726 INFO L275 TraceCheckUtils]: 87: Hoare quadruple {6171#(<= 3 |fibo2_#in~n|)} {6052#(<= fibo1_~n 4)} #71#return; {5913#false} is VALID [2020-07-08 22:04:08,726 INFO L280 TraceCheckUtils]: 88: Hoare triple {5913#false} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647; {5913#false} is VALID [2020-07-08 22:04:08,726 INFO L280 TraceCheckUtils]: 89: Hoare triple {5913#false} #res := #t~ret0 + #t~ret1; {5913#false} is VALID [2020-07-08 22:04:08,727 INFO L280 TraceCheckUtils]: 90: Hoare triple {5913#false} havoc #t~ret1; {5913#false} is VALID [2020-07-08 22:04:08,727 INFO L280 TraceCheckUtils]: 91: Hoare triple {5913#false} havoc #t~ret0; {5913#false} is VALID [2020-07-08 22:04:08,727 INFO L280 TraceCheckUtils]: 92: Hoare triple {5913#false} assume true; {5913#false} is VALID [2020-07-08 22:04:08,727 INFO L275 TraceCheckUtils]: 93: Hoare quadruple {5913#false} {5916#(<= main_~x~0 4)} #63#return; {5913#false} is VALID [2020-07-08 22:04:08,737 INFO L263 TraceCheckUtils]: 0: Hoare triple {5912#true} call ULTIMATE.init(); {5912#true} is VALID [2020-07-08 22:04:08,737 INFO L280 TraceCheckUtils]: 1: Hoare triple {5912#true} assume true; {5912#true} is VALID [2020-07-08 22:04:08,737 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {5912#true} {5912#true} #59#return; {5912#true} is VALID [2020-07-08 22:04:08,738 INFO L263 TraceCheckUtils]: 3: Hoare triple {5912#true} call #t~ret5 := main(); {5912#true} is VALID [2020-07-08 22:04:08,741 INFO L280 TraceCheckUtils]: 4: Hoare triple {5912#true} ~x~0 := 4; {5916#(<= main_~x~0 4)} is VALID [2020-07-08 22:04:08,742 INFO L263 TraceCheckUtils]: 5: Hoare triple {5916#(<= main_~x~0 4)} call #t~ret4 := fibo1(~x~0); {5912#true} is VALID [2020-07-08 22:04:08,742 INFO L280 TraceCheckUtils]: 6: Hoare triple {5912#true} ~n := #in~n; {5912#true} is VALID [2020-07-08 22:04:08,742 INFO L280 TraceCheckUtils]: 7: Hoare triple {5912#true} assume !(~n < 1); {5912#true} is VALID [2020-07-08 22:04:08,742 INFO L280 TraceCheckUtils]: 8: Hoare triple {5912#true} assume !(1 == ~n); {5912#true} is VALID [2020-07-08 22:04:08,743 INFO L263 TraceCheckUtils]: 9: Hoare triple {5912#true} call #t~ret0 := fibo2(~n - 1); {5912#true} is VALID [2020-07-08 22:04:08,743 INFO L280 TraceCheckUtils]: 10: Hoare triple {5912#true} ~n := #in~n; {6094#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 22:04:08,744 INFO L280 TraceCheckUtils]: 11: Hoare triple {6094#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {6094#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 22:04:08,744 INFO L280 TraceCheckUtils]: 12: Hoare triple {6094#(= fibo2_~n |fibo2_#in~n|)} assume !(1 == ~n); {6094#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 22:04:08,744 INFO L263 TraceCheckUtils]: 13: Hoare triple {6094#(= fibo2_~n |fibo2_#in~n|)} call #t~ret2 := fibo1(~n - 1); {5912#true} is VALID [2020-07-08 22:04:08,745 INFO L280 TraceCheckUtils]: 14: Hoare triple {5912#true} ~n := #in~n; {6126#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 22:04:08,745 INFO L280 TraceCheckUtils]: 15: Hoare triple {6126#(= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {6126#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 22:04:08,746 INFO L280 TraceCheckUtils]: 16: Hoare triple {6126#(= fibo1_~n |fibo1_#in~n|)} assume !(1 == ~n); {6126#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 22:04:08,746 INFO L263 TraceCheckUtils]: 17: Hoare triple {6126#(= fibo1_~n |fibo1_#in~n|)} call #t~ret0 := fibo2(~n - 1); {5912#true} is VALID [2020-07-08 22:04:08,746 INFO L280 TraceCheckUtils]: 18: Hoare triple {5912#true} ~n := #in~n; {6094#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 22:04:08,747 INFO L280 TraceCheckUtils]: 19: Hoare triple {6094#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {6094#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 22:04:08,747 INFO L280 TraceCheckUtils]: 20: Hoare triple {6094#(= fibo2_~n |fibo2_#in~n|)} assume 1 == ~n; {6140#(<= |fibo2_#in~n| 1)} is VALID [2020-07-08 22:04:08,748 INFO L280 TraceCheckUtils]: 21: Hoare triple {6140#(<= |fibo2_#in~n| 1)} #res := 1; {6140#(<= |fibo2_#in~n| 1)} is VALID [2020-07-08 22:04:08,748 INFO L280 TraceCheckUtils]: 22: Hoare triple {6140#(<= |fibo2_#in~n| 1)} assume true; {6140#(<= |fibo2_#in~n| 1)} is VALID [2020-07-08 22:04:08,750 INFO L275 TraceCheckUtils]: 23: Hoare quadruple {6140#(<= |fibo2_#in~n| 1)} {6126#(= fibo1_~n |fibo1_#in~n|)} #69#return; {6133#(and (<= fibo1_~n 2) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 22:04:08,750 INFO L280 TraceCheckUtils]: 24: Hoare triple {6133#(and (<= fibo1_~n 2) (= fibo1_~n |fibo1_#in~n|))} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {6133#(and (<= fibo1_~n 2) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 22:04:08,750 INFO L263 TraceCheckUtils]: 25: Hoare triple {6133#(and (<= fibo1_~n 2) (= fibo1_~n |fibo1_#in~n|))} call #t~ret1 := fibo2(~n - 2); {5912#true} is VALID [2020-07-08 22:04:08,751 INFO L280 TraceCheckUtils]: 26: Hoare triple {5912#true} ~n := #in~n; {5912#true} is VALID [2020-07-08 22:04:08,751 INFO L280 TraceCheckUtils]: 27: Hoare triple {5912#true} assume ~n < 1; {5912#true} is VALID [2020-07-08 22:04:08,751 INFO L280 TraceCheckUtils]: 28: Hoare triple {5912#true} #res := 0; {5912#true} is VALID [2020-07-08 22:04:08,751 INFO L280 TraceCheckUtils]: 29: Hoare triple {5912#true} assume true; {5912#true} is VALID [2020-07-08 22:04:08,752 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {5912#true} {6133#(and (<= fibo1_~n 2) (= fibo1_~n |fibo1_#in~n|))} #71#return; {6139#(<= |fibo1_#in~n| 2)} is VALID [2020-07-08 22:04:08,753 INFO L280 TraceCheckUtils]: 31: Hoare triple {6139#(<= |fibo1_#in~n| 2)} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647; {6139#(<= |fibo1_#in~n| 2)} is VALID [2020-07-08 22:04:08,753 INFO L280 TraceCheckUtils]: 32: Hoare triple {6139#(<= |fibo1_#in~n| 2)} #res := #t~ret0 + #t~ret1; {6139#(<= |fibo1_#in~n| 2)} is VALID [2020-07-08 22:04:08,754 INFO L280 TraceCheckUtils]: 33: Hoare triple {6139#(<= |fibo1_#in~n| 2)} havoc #t~ret1; {6139#(<= |fibo1_#in~n| 2)} is VALID [2020-07-08 22:04:08,754 INFO L280 TraceCheckUtils]: 34: Hoare triple {6139#(<= |fibo1_#in~n| 2)} havoc #t~ret0; {6139#(<= |fibo1_#in~n| 2)} is VALID [2020-07-08 22:04:08,754 INFO L280 TraceCheckUtils]: 35: Hoare triple {6139#(<= |fibo1_#in~n| 2)} assume true; {6139#(<= |fibo1_#in~n| 2)} is VALID [2020-07-08 22:04:08,756 INFO L275 TraceCheckUtils]: 36: Hoare quadruple {6139#(<= |fibo1_#in~n| 2)} {6094#(= fibo2_~n |fibo2_#in~n|)} #65#return; {6118#(and (= fibo2_~n |fibo2_#in~n|) (<= fibo2_~n 3))} is VALID [2020-07-08 22:04:08,756 INFO L280 TraceCheckUtils]: 37: Hoare triple {6118#(and (= fibo2_~n |fibo2_#in~n|) (<= fibo2_~n 3))} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {6118#(and (= fibo2_~n |fibo2_#in~n|) (<= fibo2_~n 3))} is VALID [2020-07-08 22:04:08,756 INFO L263 TraceCheckUtils]: 38: Hoare triple {6118#(and (= fibo2_~n |fibo2_#in~n|) (<= fibo2_~n 3))} call #t~ret3 := fibo1(~n - 2); {5912#true} is VALID [2020-07-08 22:04:08,757 INFO L280 TraceCheckUtils]: 39: Hoare triple {5912#true} ~n := #in~n; {5912#true} is VALID [2020-07-08 22:04:08,757 INFO L280 TraceCheckUtils]: 40: Hoare triple {5912#true} assume !(~n < 1); {5912#true} is VALID [2020-07-08 22:04:08,757 INFO L280 TraceCheckUtils]: 41: Hoare triple {5912#true} assume 1 == ~n; {5912#true} is VALID [2020-07-08 22:04:08,757 INFO L280 TraceCheckUtils]: 42: Hoare triple {5912#true} #res := 1; {5912#true} is VALID [2020-07-08 22:04:08,757 INFO L280 TraceCheckUtils]: 43: Hoare triple {5912#true} assume true; {5912#true} is VALID [2020-07-08 22:04:08,758 INFO L275 TraceCheckUtils]: 44: Hoare quadruple {5912#true} {6118#(and (= fibo2_~n |fibo2_#in~n|) (<= fibo2_~n 3))} #67#return; {6125#(<= |fibo2_#in~n| 3)} is VALID [2020-07-08 22:04:08,759 INFO L280 TraceCheckUtils]: 45: Hoare triple {6125#(<= |fibo2_#in~n| 3)} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647; {6125#(<= |fibo2_#in~n| 3)} is VALID [2020-07-08 22:04:08,759 INFO L280 TraceCheckUtils]: 46: Hoare triple {6125#(<= |fibo2_#in~n| 3)} #res := #t~ret2 + #t~ret3; {6125#(<= |fibo2_#in~n| 3)} is VALID [2020-07-08 22:04:08,760 INFO L280 TraceCheckUtils]: 47: Hoare triple {6125#(<= |fibo2_#in~n| 3)} havoc #t~ret2; {6125#(<= |fibo2_#in~n| 3)} is VALID [2020-07-08 22:04:08,760 INFO L280 TraceCheckUtils]: 48: Hoare triple {6125#(<= |fibo2_#in~n| 3)} havoc #t~ret3; {6125#(<= |fibo2_#in~n| 3)} is VALID [2020-07-08 22:04:08,761 INFO L280 TraceCheckUtils]: 49: Hoare triple {6125#(<= |fibo2_#in~n| 3)} assume true; {6125#(<= |fibo2_#in~n| 3)} is VALID [2020-07-08 22:04:08,762 INFO L275 TraceCheckUtils]: 50: Hoare quadruple {6125#(<= |fibo2_#in~n| 3)} {5912#true} #69#return; {6052#(<= fibo1_~n 4)} is VALID [2020-07-08 22:04:08,762 INFO L280 TraceCheckUtils]: 51: Hoare triple {6052#(<= fibo1_~n 4)} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {6052#(<= fibo1_~n 4)} is VALID [2020-07-08 22:04:08,762 INFO L263 TraceCheckUtils]: 52: Hoare triple {6052#(<= fibo1_~n 4)} call #t~ret1 := fibo2(~n - 2); {5912#true} is VALID [2020-07-08 22:04:08,763 INFO L280 TraceCheckUtils]: 53: Hoare triple {5912#true} ~n := #in~n; {6094#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 22:04:08,763 INFO L280 TraceCheckUtils]: 54: Hoare triple {6094#(= fibo2_~n |fibo2_#in~n|)} assume !(~n < 1); {6094#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 22:04:08,764 INFO L280 TraceCheckUtils]: 55: Hoare triple {6094#(= fibo2_~n |fibo2_#in~n|)} assume !(1 == ~n); {6094#(= fibo2_~n |fibo2_#in~n|)} is VALID [2020-07-08 22:04:08,764 INFO L263 TraceCheckUtils]: 56: Hoare triple {6094#(= fibo2_~n |fibo2_#in~n|)} call #t~ret2 := fibo1(~n - 1); {5912#true} is VALID [2020-07-08 22:04:08,765 INFO L280 TraceCheckUtils]: 57: Hoare triple {5912#true} ~n := #in~n; {6126#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-08 22:04:08,765 INFO L280 TraceCheckUtils]: 58: Hoare triple {6126#(= fibo1_~n |fibo1_#in~n|)} assume !(~n < 1); {6172#(and (< 0 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 22:04:08,766 INFO L280 TraceCheckUtils]: 59: Hoare triple {6172#(and (< 0 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} assume !(1 == ~n); {6173#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 22:04:08,766 INFO L263 TraceCheckUtils]: 60: Hoare triple {6173#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} call #t~ret0 := fibo2(~n - 1); {5912#true} is VALID [2020-07-08 22:04:08,766 INFO L280 TraceCheckUtils]: 61: Hoare triple {5912#true} ~n := #in~n; {5912#true} is VALID [2020-07-08 22:04:08,767 INFO L280 TraceCheckUtils]: 62: Hoare triple {5912#true} assume !(~n < 1); {5912#true} is VALID [2020-07-08 22:04:08,767 INFO L280 TraceCheckUtils]: 63: Hoare triple {5912#true} assume 1 == ~n; {5912#true} is VALID [2020-07-08 22:04:08,767 INFO L280 TraceCheckUtils]: 64: Hoare triple {5912#true} #res := 1; {5912#true} is VALID [2020-07-08 22:04:08,767 INFO L280 TraceCheckUtils]: 65: Hoare triple {5912#true} assume true; {5912#true} is VALID [2020-07-08 22:04:08,768 INFO L275 TraceCheckUtils]: 66: Hoare quadruple {5912#true} {6173#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} #69#return; {6173#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 22:04:08,769 INFO L280 TraceCheckUtils]: 67: Hoare triple {6173#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {6173#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} is VALID [2020-07-08 22:04:08,769 INFO L263 TraceCheckUtils]: 68: Hoare triple {6173#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} call #t~ret1 := fibo2(~n - 2); {5912#true} is VALID [2020-07-08 22:04:08,769 INFO L280 TraceCheckUtils]: 69: Hoare triple {5912#true} ~n := #in~n; {5912#true} is VALID [2020-07-08 22:04:08,769 INFO L280 TraceCheckUtils]: 70: Hoare triple {5912#true} assume ~n < 1; {5912#true} is VALID [2020-07-08 22:04:08,769 INFO L280 TraceCheckUtils]: 71: Hoare triple {5912#true} #res := 0; {5912#true} is VALID [2020-07-08 22:04:08,769 INFO L280 TraceCheckUtils]: 72: Hoare triple {5912#true} assume true; {5912#true} is VALID [2020-07-08 22:04:08,771 INFO L275 TraceCheckUtils]: 73: Hoare quadruple {5912#true} {6173#(and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|))} #71#return; {6185#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 22:04:08,771 INFO L280 TraceCheckUtils]: 74: Hoare triple {6185#(<= 2 |fibo1_#in~n|)} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647; {6185#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 22:04:08,772 INFO L280 TraceCheckUtils]: 75: Hoare triple {6185#(<= 2 |fibo1_#in~n|)} #res := #t~ret0 + #t~ret1; {6185#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 22:04:08,772 INFO L280 TraceCheckUtils]: 76: Hoare triple {6185#(<= 2 |fibo1_#in~n|)} havoc #t~ret1; {6185#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 22:04:08,773 INFO L280 TraceCheckUtils]: 77: Hoare triple {6185#(<= 2 |fibo1_#in~n|)} havoc #t~ret0; {6185#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 22:04:08,773 INFO L280 TraceCheckUtils]: 78: Hoare triple {6185#(<= 2 |fibo1_#in~n|)} assume true; {6185#(<= 2 |fibo1_#in~n|)} is VALID [2020-07-08 22:04:08,774 INFO L275 TraceCheckUtils]: 79: Hoare quadruple {6185#(<= 2 |fibo1_#in~n|)} {6094#(= fibo2_~n |fibo2_#in~n|)} #65#return; {6164#(and (= fibo2_~n |fibo2_#in~n|) (<= 3 fibo2_~n))} is VALID [2020-07-08 22:04:08,775 INFO L280 TraceCheckUtils]: 80: Hoare triple {6164#(and (= fibo2_~n |fibo2_#in~n|) (<= 3 fibo2_~n))} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {6164#(and (= fibo2_~n |fibo2_#in~n|) (<= 3 fibo2_~n))} is VALID [2020-07-08 22:04:08,775 INFO L263 TraceCheckUtils]: 81: Hoare triple {6164#(and (= fibo2_~n |fibo2_#in~n|) (<= 3 fibo2_~n))} call #t~ret3 := fibo1(~n - 2); {5912#true} is VALID [2020-07-08 22:04:08,775 INFO L280 TraceCheckUtils]: 82: Hoare triple {5912#true} ~n := #in~n; {5912#true} is VALID [2020-07-08 22:04:08,775 INFO L280 TraceCheckUtils]: 83: Hoare triple {5912#true} assume !(~n < 1); {5912#true} is VALID [2020-07-08 22:04:08,776 INFO L280 TraceCheckUtils]: 84: Hoare triple {5912#true} assume 1 == ~n; {5912#true} is VALID [2020-07-08 22:04:08,776 INFO L280 TraceCheckUtils]: 85: Hoare triple {5912#true} #res := 1; {5912#true} is VALID [2020-07-08 22:04:08,776 INFO L280 TraceCheckUtils]: 86: Hoare triple {5912#true} assume true; {5912#true} is VALID [2020-07-08 22:04:08,777 INFO L275 TraceCheckUtils]: 87: Hoare quadruple {5912#true} {6164#(and (= fibo2_~n |fibo2_#in~n|) (<= 3 fibo2_~n))} #67#return; {6171#(<= 3 |fibo2_#in~n|)} is VALID [2020-07-08 22:04:08,777 INFO L280 TraceCheckUtils]: 88: Hoare triple {6171#(<= 3 |fibo2_#in~n|)} assume -2147483648 <= #t~ret3 && #t~ret3 <= 2147483647; {6171#(<= 3 |fibo2_#in~n|)} is VALID [2020-07-08 22:04:08,778 INFO L280 TraceCheckUtils]: 89: Hoare triple {6171#(<= 3 |fibo2_#in~n|)} #res := #t~ret2 + #t~ret3; {6171#(<= 3 |fibo2_#in~n|)} is VALID [2020-07-08 22:04:08,779 INFO L280 TraceCheckUtils]: 90: Hoare triple {6171#(<= 3 |fibo2_#in~n|)} havoc #t~ret2; {6171#(<= 3 |fibo2_#in~n|)} is VALID [2020-07-08 22:04:08,780 INFO L280 TraceCheckUtils]: 91: Hoare triple {6171#(<= 3 |fibo2_#in~n|)} havoc #t~ret3; {6171#(<= 3 |fibo2_#in~n|)} is VALID [2020-07-08 22:04:08,781 INFO L280 TraceCheckUtils]: 92: Hoare triple {6171#(<= 3 |fibo2_#in~n|)} assume true; {6171#(<= 3 |fibo2_#in~n|)} is VALID [2020-07-08 22:04:08,782 INFO L275 TraceCheckUtils]: 93: Hoare quadruple {6171#(<= 3 |fibo2_#in~n|)} {6052#(<= fibo1_~n 4)} #71#return; {5913#false} is VALID [2020-07-08 22:04:08,782 INFO L280 TraceCheckUtils]: 94: Hoare triple {5913#false} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647; {5913#false} is VALID [2020-07-08 22:04:08,782 INFO L280 TraceCheckUtils]: 95: Hoare triple {5913#false} #res := #t~ret0 + #t~ret1; {5913#false} is VALID [2020-07-08 22:04:08,783 INFO L280 TraceCheckUtils]: 96: Hoare triple {5913#false} havoc #t~ret1; {5913#false} is VALID [2020-07-08 22:04:08,783 INFO L280 TraceCheckUtils]: 97: Hoare triple {5913#false} havoc #t~ret0; {5913#false} is VALID [2020-07-08 22:04:08,783 INFO L280 TraceCheckUtils]: 98: Hoare triple {5913#false} assume true; {5913#false} is VALID [2020-07-08 22:04:08,783 INFO L275 TraceCheckUtils]: 99: Hoare quadruple {5913#false} {5916#(<= main_~x~0 4)} #63#return; {5913#false} is VALID [2020-07-08 22:04:08,783 INFO L280 TraceCheckUtils]: 100: Hoare triple {5913#false} assume -2147483648 <= #t~ret4 && #t~ret4 <= 2147483647; {5913#false} is VALID [2020-07-08 22:04:08,784 INFO L280 TraceCheckUtils]: 101: Hoare triple {5913#false} ~result~0 := #t~ret4; {5913#false} is VALID [2020-07-08 22:04:08,784 INFO L280 TraceCheckUtils]: 102: Hoare triple {5913#false} havoc #t~ret4; {5913#false} is VALID [2020-07-08 22:04:08,784 INFO L280 TraceCheckUtils]: 103: Hoare triple {5913#false} assume 3 == ~result~0; {5913#false} is VALID [2020-07-08 22:04:08,784 INFO L280 TraceCheckUtils]: 104: Hoare triple {5913#false} assume !false; {5913#false} is VALID [2020-07-08 22:04:08,796 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 37 proven. 58 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2020-07-08 22:04:08,796 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1196611105] [2020-07-08 22:04:08,796 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-08 22:04:08,796 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-07-08 22:04:08,797 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719000014] [2020-07-08 22:04:08,798 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 105 [2020-07-08 22:04:08,799 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 22:04:08,799 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 16 states. [2020-07-08 22:04:08,884 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 85 edges. 85 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:04:08,884 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-07-08 22:04:08,885 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 22:04:08,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-07-08 22:04:08,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2020-07-08 22:04:08,885 INFO L87 Difference]: Start difference. First operand 133 states and 191 transitions. Second operand 16 states. [2020-07-08 22:04:10,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:04:10,612 INFO L93 Difference]: Finished difference Result 265 states and 420 transitions. [2020-07-08 22:04:10,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-07-08 22:04:10,612 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 105 [2020-07-08 22:04:10,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 22:04:10,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-07-08 22:04:10,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 172 transitions. [2020-07-08 22:04:10,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-07-08 22:04:10,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 172 transitions. [2020-07-08 22:04:10,620 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 18 states and 172 transitions. [2020-07-08 22:04:10,862 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 172 edges. 172 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:04:10,873 INFO L225 Difference]: With dead ends: 265 [2020-07-08 22:04:10,873 INFO L226 Difference]: Without dead ends: 116 [2020-07-08 22:04:10,876 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=341, Unknown=0, NotChecked=0, Total=420 [2020-07-08 22:04:10,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2020-07-08 22:04:11,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 103. [2020-07-08 22:04:11,102 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 22:04:11,102 INFO L82 GeneralOperation]: Start isEquivalent. First operand 116 states. Second operand 103 states. [2020-07-08 22:04:11,103 INFO L74 IsIncluded]: Start isIncluded. First operand 116 states. Second operand 103 states. [2020-07-08 22:04:11,103 INFO L87 Difference]: Start difference. First operand 116 states. Second operand 103 states. [2020-07-08 22:04:11,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:04:11,108 INFO L93 Difference]: Finished difference Result 116 states and 146 transitions. [2020-07-08 22:04:11,108 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 146 transitions. [2020-07-08 22:04:11,109 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:04:11,109 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:04:11,109 INFO L74 IsIncluded]: Start isIncluded. First operand 103 states. Second operand 116 states. [2020-07-08 22:04:11,109 INFO L87 Difference]: Start difference. First operand 103 states. Second operand 116 states. [2020-07-08 22:04:11,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:04:11,114 INFO L93 Difference]: Finished difference Result 116 states and 146 transitions. [2020-07-08 22:04:11,114 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 146 transitions. [2020-07-08 22:04:11,115 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:04:11,115 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:04:11,115 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 22:04:11,115 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 22:04:11,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2020-07-08 22:04:11,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 127 transitions. [2020-07-08 22:04:11,119 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 127 transitions. Word has length 105 [2020-07-08 22:04:11,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 22:04:11,120 INFO L479 AbstractCegarLoop]: Abstraction has 103 states and 127 transitions. [2020-07-08 22:04:11,120 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-07-08 22:04:11,120 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 103 states and 127 transitions. [2020-07-08 22:04:11,303 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 127 edges. 127 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:04:11,303 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 127 transitions. [2020-07-08 22:04:11,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-07-08 22:04:11,305 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 22:04:11,306 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, 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] [2020-07-08 22:04:11,306 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-07-08 22:04:11,306 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 22:04:11,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 22:04:11,307 INFO L82 PathProgramCache]: Analyzing trace with hash 1951493560, now seen corresponding path program 1 times [2020-07-08 22:04:11,307 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 22:04:11,307 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1380607705] [2020-07-08 22:04:11,307 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 22:04:11,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-08 22:04:11,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-08 22:04:11,354 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-08 22:04:11,354 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-08 22:04:11,354 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-07-08 22:04:11,392 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-08 22:04:11,392 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-08 22:04:11,392 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-08 22:04:11,392 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2020-07-08 22:04:11,393 WARN L170 areAnnotationChecker]: fibo2ENTRY has no Hoare annotation [2020-07-08 22:04:11,393 WARN L170 areAnnotationChecker]: fibo1ENTRY has no Hoare annotation [2020-07-08 22:04:11,393 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-08 22:04:11,393 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-08 22:04:11,393 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-08 22:04:11,393 WARN L170 areAnnotationChecker]: L37 has no Hoare annotation [2020-07-08 22:04:11,393 WARN L170 areAnnotationChecker]: L37 has no Hoare annotation [2020-07-08 22:04:11,393 WARN L170 areAnnotationChecker]: L18 has no Hoare annotation [2020-07-08 22:04:11,393 WARN L170 areAnnotationChecker]: L18 has no Hoare annotation [2020-07-08 22:04:11,394 WARN L170 areAnnotationChecker]: L8 has no Hoare annotation [2020-07-08 22:04:11,394 WARN L170 areAnnotationChecker]: L8 has no Hoare annotation [2020-07-08 22:04:11,394 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-08 22:04:11,394 WARN L170 areAnnotationChecker]: L37-1 has no Hoare annotation [2020-07-08 22:04:11,394 WARN L170 areAnnotationChecker]: L19 has no Hoare annotation [2020-07-08 22:04:11,394 WARN L170 areAnnotationChecker]: L20 has no Hoare annotation [2020-07-08 22:04:11,394 WARN L170 areAnnotationChecker]: L20 has no Hoare annotation [2020-07-08 22:04:11,394 WARN L170 areAnnotationChecker]: L9 has no Hoare annotation [2020-07-08 22:04:11,395 WARN L170 areAnnotationChecker]: L10 has no Hoare annotation [2020-07-08 22:04:11,395 WARN L170 areAnnotationChecker]: L10 has no Hoare annotation [2020-07-08 22:04:11,395 WARN L170 areAnnotationChecker]: L37-2 has no Hoare annotation [2020-07-08 22:04:11,395 WARN L170 areAnnotationChecker]: fibo2FINAL has no Hoare annotation [2020-07-08 22:04:11,395 WARN L170 areAnnotationChecker]: L21 has no Hoare annotation [2020-07-08 22:04:11,395 WARN L170 areAnnotationChecker]: L23 has no Hoare annotation [2020-07-08 22:04:11,395 WARN L170 areAnnotationChecker]: L23 has no Hoare annotation [2020-07-08 22:04:11,395 WARN L170 areAnnotationChecker]: fibo1FINAL has no Hoare annotation [2020-07-08 22:04:11,395 WARN L170 areAnnotationChecker]: L11 has no Hoare annotation [2020-07-08 22:04:11,396 WARN L170 areAnnotationChecker]: L13 has no Hoare annotation [2020-07-08 22:04:11,396 WARN L170 areAnnotationChecker]: L13 has no Hoare annotation [2020-07-08 22:04:11,396 WARN L170 areAnnotationChecker]: L37-3 has no Hoare annotation [2020-07-08 22:04:11,396 WARN L170 areAnnotationChecker]: fibo2EXIT has no Hoare annotation [2020-07-08 22:04:11,396 WARN L170 areAnnotationChecker]: fibo2EXIT has no Hoare annotation [2020-07-08 22:04:11,396 WARN L170 areAnnotationChecker]: L23-1 has no Hoare annotation [2020-07-08 22:04:11,396 WARN L170 areAnnotationChecker]: fibo1EXIT has no Hoare annotation [2020-07-08 22:04:11,396 WARN L170 areAnnotationChecker]: fibo1EXIT has no Hoare annotation [2020-07-08 22:04:11,396 WARN L170 areAnnotationChecker]: fibo1EXIT has no Hoare annotation [2020-07-08 22:04:11,397 WARN L170 areAnnotationChecker]: L13-1 has no Hoare annotation [2020-07-08 22:04:11,397 WARN L170 areAnnotationChecker]: L38 has no Hoare annotation [2020-07-08 22:04:11,397 WARN L170 areAnnotationChecker]: L38 has no Hoare annotation [2020-07-08 22:04:11,397 WARN L170 areAnnotationChecker]: L13-3 has no Hoare annotation [2020-07-08 22:04:11,397 WARN L170 areAnnotationChecker]: L23-2 has no Hoare annotation [2020-07-08 22:04:11,397 WARN L170 areAnnotationChecker]: L23-2 has no Hoare annotation [2020-07-08 22:04:11,397 WARN L170 areAnnotationChecker]: L23-3 has no Hoare annotation [2020-07-08 22:04:11,397 WARN L170 areAnnotationChecker]: L13-2 has no Hoare annotation [2020-07-08 22:04:11,397 WARN L170 areAnnotationChecker]: L13-2 has no Hoare annotation [2020-07-08 22:04:11,398 WARN L170 areAnnotationChecker]: L39 has no Hoare annotation [2020-07-08 22:04:11,398 WARN L170 areAnnotationChecker]: L39 has no Hoare annotation [2020-07-08 22:04:11,398 WARN L170 areAnnotationChecker]: L38-2 has no Hoare annotation [2020-07-08 22:04:11,398 WARN L170 areAnnotationChecker]: L13-4 has no Hoare annotation [2020-07-08 22:04:11,398 WARN L170 areAnnotationChecker]: L23-4 has no Hoare annotation [2020-07-08 22:04:11,398 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-08 22:04:11,398 WARN L170 areAnnotationChecker]: L13-5 has no Hoare annotation [2020-07-08 22:04:11,398 WARN L170 areAnnotationChecker]: L23-5 has no Hoare annotation [2020-07-08 22:04:11,398 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-08 22:04:11,398 WARN L170 areAnnotationChecker]: L13-6 has no Hoare annotation [2020-07-08 22:04:11,399 WARN L170 areAnnotationChecker]: L23-6 has no Hoare annotation [2020-07-08 22:04:11,399 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-08 22:04:11,402 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.07 10:04:11 BoogieIcfgContainer [2020-07-08 22:04:11,402 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-08 22:04:11,405 INFO L168 Benchmark]: Toolchain (without parser) took 17022.87 ms. Allocated memory was 146.8 MB in the beginning and 349.2 MB in the end (delta: 202.4 MB). Free memory was 105.6 MB in the beginning and 234.2 MB in the end (delta: -128.6 MB). Peak memory consumption was 73.8 MB. Max. memory is 7.1 GB. [2020-07-08 22:04:11,406 INFO L168 Benchmark]: CDTParser took 1.00 ms. Allocated memory is still 146.8 MB. Free memory was 123.4 MB in the beginning and 123.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-08 22:04:11,406 INFO L168 Benchmark]: CACSL2BoogieTranslator took 348.65 ms. Allocated memory is still 146.8 MB. Free memory was 105.4 MB in the beginning and 95.1 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. [2020-07-08 22:04:11,407 INFO L168 Benchmark]: Boogie Preprocessor took 49.64 ms. Allocated memory is still 146.8 MB. Free memory was 95.1 MB in the beginning and 93.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 7.1 GB. [2020-07-08 22:04:11,407 INFO L168 Benchmark]: RCFGBuilder took 668.61 ms. Allocated memory was 146.8 MB in the beginning and 207.6 MB in the end (delta: 60.8 MB). Free memory was 93.5 MB in the beginning and 165.7 MB in the end (delta: -72.2 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2020-07-08 22:04:11,408 INFO L168 Benchmark]: TraceAbstraction took 15950.13 ms. Allocated memory was 207.6 MB in the beginning and 349.2 MB in the end (delta: 141.6 MB). Free memory was 165.7 MB in the beginning and 234.2 MB in the end (delta: -68.5 MB). Peak memory consumption was 73.1 MB. Max. memory is 7.1 GB. [2020-07-08 22:04:11,410 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.00 ms. Allocated memory is still 146.8 MB. Free memory was 123.4 MB in the beginning and 123.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 348.65 ms. Allocated memory is still 146.8 MB. Free memory was 105.4 MB in the beginning and 95.1 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 49.64 ms. Allocated memory is still 146.8 MB. Free memory was 95.1 MB in the beginning and 93.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 668.61 ms. Allocated memory was 146.8 MB in the beginning and 207.6 MB in the end (delta: 60.8 MB). Free memory was 93.5 MB in the beginning and 165.7 MB in the end (delta: -72.2 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 15950.13 ms. Allocated memory was 207.6 MB in the beginning and 349.2 MB in the end (delta: 141.6 MB). Free memory was 165.7 MB in the beginning and 234.2 MB in the end (delta: -68.5 MB). Peak memory consumption was 73.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 39]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L36] int x = 4; VAL [x=4] [L37] CALL, EXPR fibo1(x) VAL [\old(n)=4] [L8] COND FALSE !(n < 1) VAL [\old(n)=4, n=4] [L10] COND FALSE !(n == 1) VAL [\old(n)=4, n=4] [L13] CALL, EXPR fibo2(n-1) VAL [\old(n)=3] [L18] COND FALSE !(n < 1) VAL [\old(n)=3, n=3] [L20] COND FALSE !(n == 1) VAL [\old(n)=3, n=3] [L23] CALL, EXPR fibo1(n-1) VAL [\old(n)=2] [L8] COND FALSE !(n < 1) VAL [\old(n)=2, n=2] [L10] COND FALSE !(n == 1) VAL [\old(n)=2, n=2] [L13] CALL, EXPR fibo2(n-1) VAL [\old(n)=1] [L18] COND FALSE !(n < 1) VAL [\old(n)=1, n=1] [L20] COND TRUE n == 1 VAL [\old(n)=1, n=1] [L21] return 1; VAL [\old(n)=1, \result=1, n=1] [L13] RET, EXPR fibo2(n-1) VAL [\old(n)=2, fibo2(n-1)=1, n=2] [L13] CALL, EXPR fibo2(n-2) VAL [\old(n)=0] [L18] COND TRUE n < 1 VAL [\old(n)=0, n=0] [L19] return 0; VAL [\old(n)=0, \result=0, n=0] [L13] RET, EXPR fibo2(n-2) VAL [\old(n)=2, fibo2(n-1)=1, fibo2(n-2)=0, n=2] [L13] return fibo2(n-1) + fibo2(n-2); VAL [\old(n)=2, \result=1, fibo2(n-1)=1, fibo2(n-2)=0, n=2] [L23] RET, EXPR fibo1(n-1) VAL [\old(n)=3, fibo1(n-1)=1, n=3] [L23] CALL, EXPR fibo1(n-2) VAL [\old(n)=1] [L8] COND FALSE !(n < 1) VAL [\old(n)=1, n=1] [L10] COND TRUE n == 1 VAL [\old(n)=1, n=1] [L11] return 1; VAL [\old(n)=1, \result=1, n=1] [L23] RET, EXPR fibo1(n-2) VAL [\old(n)=3, fibo1(n-1)=1, fibo1(n-2)=1, n=3] [L23] return fibo1(n-1) + fibo1(n-2); VAL [\old(n)=3, \result=2, fibo1(n-1)=1, fibo1(n-2)=1, n=3] [L13] RET, EXPR fibo2(n-1) VAL [\old(n)=4, fibo2(n-1)=2, n=4] [L13] CALL, EXPR fibo2(n-2) VAL [\old(n)=2] [L18] COND FALSE !(n < 1) VAL [\old(n)=2, n=2] [L20] COND FALSE !(n == 1) VAL [\old(n)=2, n=2] [L23] CALL, EXPR fibo1(n-1) VAL [\old(n)=1] [L8] COND FALSE !(n < 1) VAL [\old(n)=1, n=1] [L10] COND TRUE n == 1 VAL [\old(n)=1, n=1] [L11] return 1; VAL [\old(n)=1, \result=1, n=1] [L23] RET, EXPR fibo1(n-1) VAL [\old(n)=2, fibo1(n-1)=1, n=2] [L23] CALL, EXPR fibo1(n-2) VAL [\old(n)=0] [L8] COND TRUE n < 1 VAL [\old(n)=0, n=0] [L9] return 0; VAL [\old(n)=0, \result=0, n=0] [L23] RET, EXPR fibo1(n-2) VAL [\old(n)=2, fibo1(n-1)=1, fibo1(n-2)=0, n=2] [L23] return fibo1(n-1) + fibo1(n-2); VAL [\old(n)=2, \result=1, fibo1(n-1)=1, fibo1(n-2)=0, n=2] [L13] RET, EXPR fibo2(n-2) VAL [\old(n)=4, fibo2(n-1)=2, fibo2(n-2)=1, n=4] [L13] return fibo2(n-1) + fibo2(n-2); VAL [\old(n)=4, \result=3, fibo2(n-1)=2, fibo2(n-2)=1, n=4] [L37] RET, EXPR fibo1(x) VAL [fibo1(x)=3, x=4] [L37] int result = fibo1(x); VAL [fibo1(x)=3, result=3, x=4] [L38] COND TRUE result == 3 VAL [result=3, x=4] [L39] __VERIFIER_error() VAL [result=3, x=4] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 45 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 15.8s, OverallIterations: 11, TraceHistogramMax: 6, AutomataDifference: 8.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 436 SDtfs, 468 SDslu, 1778 SDs, 0 SdLazy, 1154 SolverSat, 156 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 221 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=133occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.7s AutomataMinimizationTime, 10 MinimizatonAttempts, 61 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 584 NumberOfCodeBlocks, 584 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 487 ConstructedInterpolants, 0 QuantifiedInterpolants, 63641 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 2 PerfectInterpolantSequences, 208/306 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 incorrect! Received shutdown request...