./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/recursive/Fibonacci01-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/recursive/Fibonacci01-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6b0570f2e0d80d68bc280040cce27f654b3fe7a2c0bad30f9bb811af9ca3d994 --- Real Ultimate output --- This is Ultimate 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 22:41:35,589 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 22:41:35,591 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 22:41:35,635 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 22:41:35,635 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 22:41:35,638 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 22:41:35,639 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 22:41:35,641 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 22:41:35,643 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 22:41:35,647 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 22:41:35,648 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 22:41:35,649 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 22:41:35,649 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 22:41:35,651 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 22:41:35,653 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 22:41:35,659 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 22:41:35,660 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 22:41:35,661 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 22:41:35,663 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 22:41:35,664 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 22:41:35,665 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 22:41:35,667 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 22:41:35,668 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 22:41:35,668 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 22:41:35,670 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 22:41:35,670 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 22:41:35,670 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 22:41:35,671 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 22:41:35,671 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 22:41:35,672 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 22:41:35,672 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 22:41:35,672 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 22:41:35,673 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 22:41:35,674 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 22:41:35,674 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 22:41:35,675 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 22:41:35,675 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 22:41:35,676 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 22:41:35,676 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 22:41:35,677 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 22:41:35,677 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 22:41:35,678 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2021-12-14 22:41:35,703 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 22:41:35,704 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 22:41:35,704 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 22:41:35,704 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 22:41:35,705 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-14 22:41:35,705 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-14 22:41:35,707 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 22:41:35,707 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 22:41:35,707 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 22:41:35,707 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 22:41:35,708 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-14 22:41:35,708 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-14 22:41:35,709 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 22:41:35,709 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-14 22:41:35,709 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 22:41:35,709 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-14 22:41:35,709 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-14 22:41:35,710 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-14 22:41:35,710 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-12-14 22:41:35,710 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-14 22:41:35,710 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 22:41:35,710 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 22:41:35,711 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-14 22:41:35,711 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 22:41:35,711 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 22:41:35,711 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-14 22:41:35,711 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 22:41:35,712 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 22:41:35,712 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-14 22:41:35,712 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-14 22:41:35,712 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 22:41:35,712 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-14 22:41:35,713 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-14 22:41:35,713 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 22:41:35,713 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6b0570f2e0d80d68bc280040cce27f654b3fe7a2c0bad30f9bb811af9ca3d994 [2021-12-14 22:41:35,915 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 22:41:35,934 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 22:41:35,937 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 22:41:35,938 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 22:41:35,938 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 22:41:35,939 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive/Fibonacci01-1.c [2021-12-14 22:41:35,993 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/235e91a0f/475eb97550fc4018986f90314dd5a529/FLAG55c1610f2 [2021-12-14 22:41:36,360 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 22:41:36,361 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/Fibonacci01-1.c [2021-12-14 22:41:36,365 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/235e91a0f/475eb97550fc4018986f90314dd5a529/FLAG55c1610f2 [2021-12-14 22:41:36,375 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/235e91a0f/475eb97550fc4018986f90314dd5a529 [2021-12-14 22:41:36,377 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 22:41:36,378 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 22:41:36,380 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 22:41:36,380 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 22:41:36,382 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 22:41:36,383 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:41:36" (1/1) ... [2021-12-14 22:41:36,384 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3654caff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:41:36, skipping insertion in model container [2021-12-14 22:41:36,384 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:41:36" (1/1) ... [2021-12-14 22:41:36,389 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 22:41:36,398 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 22:41:36,539 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/Fibonacci01-1.c[804,817] [2021-12-14 22:41:36,539 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 22:41:36,547 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 22:41:36,567 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/Fibonacci01-1.c[804,817] [2021-12-14 22:41:36,569 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 22:41:36,586 INFO L208 MainTranslator]: Completed translation [2021-12-14 22:41:36,586 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:41:36 WrapperNode [2021-12-14 22:41:36,586 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 22:41:36,588 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 22:41:36,588 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 22:41:36,588 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 22:41:36,596 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:41:36" (1/1) ... [2021-12-14 22:41:36,604 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:41:36" (1/1) ... [2021-12-14 22:41:36,619 INFO L137 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 28 [2021-12-14 22:41:36,619 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 22:41:36,621 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 22:41:36,621 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 22:41:36,621 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 22:41:36,628 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:41:36" (1/1) ... [2021-12-14 22:41:36,628 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:41:36" (1/1) ... [2021-12-14 22:41:36,638 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:41:36" (1/1) ... [2021-12-14 22:41:36,638 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:41:36" (1/1) ... [2021-12-14 22:41:36,645 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:41:36" (1/1) ... [2021-12-14 22:41:36,651 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:41:36" (1/1) ... [2021-12-14 22:41:36,652 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:41:36" (1/1) ... [2021-12-14 22:41:36,654 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 22:41:36,659 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 22:41:36,659 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 22:41:36,659 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 22:41:36,660 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:41:36" (1/1) ... [2021-12-14 22:41:36,666 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 22:41:36,676 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 22:41:36,692 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-14 22:41:36,715 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-14 22:41:36,735 INFO L130 BoogieDeclarations]: Found specification of procedure fibonacci [2021-12-14 22:41:36,735 INFO L138 BoogieDeclarations]: Found implementation of procedure fibonacci [2021-12-14 22:41:36,735 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 22:41:36,735 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 22:41:36,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 22:41:36,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 22:41:36,787 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 22:41:36,789 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 22:41:36,923 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 22:41:36,928 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 22:41:36,929 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-14 22:41:36,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:41:36 BoogieIcfgContainer [2021-12-14 22:41:36,930 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 22:41:36,932 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-14 22:41:36,932 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-14 22:41:36,937 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-14 22:41:36,938 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 10:41:36" (1/3) ... [2021-12-14 22:41:36,938 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79d248c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 10:41:36, skipping insertion in model container [2021-12-14 22:41:36,939 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:41:36" (2/3) ... [2021-12-14 22:41:36,939 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79d248c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 10:41:36, skipping insertion in model container [2021-12-14 22:41:36,939 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:41:36" (3/3) ... [2021-12-14 22:41:36,940 INFO L111 eAbstractionObserver]: Analyzing ICFG Fibonacci01-1.c [2021-12-14 22:41:36,945 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-14 22:41:36,949 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2021-12-14 22:41:37,014 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-14 22:41:37,022 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-14 22:41:37,022 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-12-14 22:41:37,035 INFO L276 IsEmpty]: Start isEmpty. Operand has 35 states, 22 states have (on average 1.5454545454545454) internal successors, (34), 30 states have internal predecessors, (34), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-14 22:41:37,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-12-14 22:41:37,040 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:41:37,040 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 22:41:37,041 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-14 22:41:37,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:41:37,046 INFO L85 PathProgramCache]: Analyzing trace with hash 630876797, now seen corresponding path program 1 times [2021-12-14 22:41:37,053 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:41:37,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950606046] [2021-12-14 22:41:37,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:41:37,054 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:41:37,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:37,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 22:41:37,226 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:41:37,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950606046] [2021-12-14 22:41:37,228 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950606046] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 22:41:37,228 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 22:41:37,228 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 22:41:37,230 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147558753] [2021-12-14 22:41:37,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 22:41:37,234 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 22:41:37,235 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:41:37,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 22:41:37,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-14 22:41:37,268 INFO L87 Difference]: Start difference. First operand has 35 states, 22 states have (on average 1.5454545454545454) internal successors, (34), 30 states have internal predecessors, (34), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 22:41:37,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:41:37,376 INFO L93 Difference]: Finished difference Result 41 states and 44 transitions. [2021-12-14 22:41:37,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 22:41:37,379 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-12-14 22:41:37,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:41:37,386 INFO L225 Difference]: With dead ends: 41 [2021-12-14 22:41:37,386 INFO L226 Difference]: Without dead ends: 27 [2021-12-14 22:41:37,391 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-14 22:41:37,398 INFO L933 BasicCegarLoop]: 19 mSDtfsCounter, 41 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-14 22:41:37,399 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 49 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-14 22:41:37,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-12-14 22:41:37,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2021-12-14 22:41:37,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 22 states have internal predecessors, (24), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-14 22:41:37,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2021-12-14 22:41:37,440 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 8 [2021-12-14 22:41:37,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:41:37,441 INFO L470 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2021-12-14 22:41:37,441 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 22:41:37,442 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2021-12-14 22:41:37,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-12-14 22:41:37,448 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:41:37,448 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 22:41:37,448 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-14 22:41:37,449 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-14 22:41:37,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:41:37,452 INFO L85 PathProgramCache]: Analyzing trace with hash -1917655731, now seen corresponding path program 1 times [2021-12-14 22:41:37,453 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:41:37,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160257824] [2021-12-14 22:41:37,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:41:37,454 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:41:37,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:37,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 22:41:37,506 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:41:37,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160257824] [2021-12-14 22:41:37,507 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160257824] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 22:41:37,508 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 22:41:37,508 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-14 22:41:37,508 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497672101] [2021-12-14 22:41:37,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 22:41:37,510 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 22:41:37,510 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:41:37,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 22:41:37,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 22:41:37,512 INFO L87 Difference]: Start difference. First operand 27 states and 30 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 22:41:37,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:41:37,534 INFO L93 Difference]: Finished difference Result 29 states and 34 transitions. [2021-12-14 22:41:37,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 22:41:37,535 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-12-14 22:41:37,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:41:37,538 INFO L225 Difference]: With dead ends: 29 [2021-12-14 22:41:37,538 INFO L226 Difference]: Without dead ends: 27 [2021-12-14 22:41:37,542 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 22:41:37,544 INFO L933 BasicCegarLoop]: 26 mSDtfsCounter, 11 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 22:41:37,545 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 38 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 22:41:37,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-12-14 22:41:37,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 25. [2021-12-14 22:41:37,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 20 states have internal predecessors, (22), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-14 22:41:37,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2021-12-14 22:41:37,558 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 9 [2021-12-14 22:41:37,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:41:37,559 INFO L470 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2021-12-14 22:41:37,559 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 22:41:37,560 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2021-12-14 22:41:37,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-12-14 22:41:37,563 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:41:37,563 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 22:41:37,563 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-14 22:41:37,564 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-14 22:41:37,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:41:37,565 INFO L85 PathProgramCache]: Analyzing trace with hash -337751957, now seen corresponding path program 1 times [2021-12-14 22:41:37,565 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:41:37,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361826108] [2021-12-14 22:41:37,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:41:37,570 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:41:37,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:37,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-14 22:41:37,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:37,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 22:41:37,639 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:41:37,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361826108] [2021-12-14 22:41:37,639 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361826108] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 22:41:37,640 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 22:41:37,640 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-14 22:41:37,640 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120491947] [2021-12-14 22:41:37,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 22:41:37,641 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-14 22:41:37,641 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:41:37,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-14 22:41:37,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-14 22:41:37,643 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-14 22:41:37,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:41:37,660 INFO L93 Difference]: Finished difference Result 25 states and 28 transitions. [2021-12-14 22:41:37,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-14 22:41:37,661 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2021-12-14 22:41:37,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:41:37,663 INFO L225 Difference]: With dead ends: 25 [2021-12-14 22:41:37,663 INFO L226 Difference]: Without dead ends: 21 [2021-12-14 22:41:37,663 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-14 22:41:37,668 INFO L933 BasicCegarLoop]: 25 mSDtfsCounter, 3 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 22:41:37,670 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 69 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 22:41:37,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2021-12-14 22:41:37,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2021-12-14 22:41:37,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 17 states have internal predecessors, (19), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-14 22:41:37,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2021-12-14 22:41:37,681 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 11 [2021-12-14 22:41:37,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:41:37,681 INFO L470 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2021-12-14 22:41:37,681 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-14 22:41:37,682 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2021-12-14 22:41:37,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-12-14 22:41:37,683 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:41:37,683 INFO L514 BasicCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 22:41:37,684 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-14 22:41:37,684 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-14 22:41:37,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:41:37,685 INFO L85 PathProgramCache]: Analyzing trace with hash -332002831, now seen corresponding path program 1 times [2021-12-14 22:41:37,686 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:41:37,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699987239] [2021-12-14 22:41:37,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:41:37,686 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:41:37,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:37,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-14 22:41:37,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:37,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-14 22:41:37,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:37,824 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-14 22:41:37,824 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:41:37,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699987239] [2021-12-14 22:41:37,824 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699987239] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 22:41:37,825 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 22:41:37,825 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 22:41:37,825 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225317500] [2021-12-14 22:41:37,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 22:41:37,827 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 22:41:37,827 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:41:37,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 22:41:37,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-14 22:41:37,828 INFO L87 Difference]: Start difference. First operand 21 states and 24 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-14 22:41:37,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:41:37,877 INFO L93 Difference]: Finished difference Result 37 states and 43 transitions. [2021-12-14 22:41:37,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 22:41:37,877 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 30 [2021-12-14 22:41:37,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:41:37,879 INFO L225 Difference]: With dead ends: 37 [2021-12-14 22:41:37,879 INFO L226 Difference]: Without dead ends: 35 [2021-12-14 22:41:37,880 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-14 22:41:37,885 INFO L933 BasicCegarLoop]: 19 mSDtfsCounter, 6 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 22:41:37,886 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 71 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 22:41:37,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2021-12-14 22:41:37,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 30. [2021-12-14 22:41:37,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 24 states have internal predecessors, (26), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2021-12-14 22:41:37,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 36 transitions. [2021-12-14 22:41:37,901 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 36 transitions. Word has length 30 [2021-12-14 22:41:37,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:41:37,901 INFO L470 AbstractCegarLoop]: Abstraction has 30 states and 36 transitions. [2021-12-14 22:41:37,901 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-14 22:41:37,902 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 36 transitions. [2021-12-14 22:41:37,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-12-14 22:41:37,903 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:41:37,904 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 22:41:37,904 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-14 22:41:37,904 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-14 22:41:37,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:41:37,905 INFO L85 PathProgramCache]: Analyzing trace with hash -1690949841, now seen corresponding path program 1 times [2021-12-14 22:41:37,905 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:41:37,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028067380] [2021-12-14 22:41:37,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:41:37,906 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:41:37,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:37,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-14 22:41:37,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:37,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-14 22:41:37,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:38,004 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-14 22:41:38,005 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:41:38,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028067380] [2021-12-14 22:41:38,005 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028067380] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 22:41:38,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1168629602] [2021-12-14 22:41:38,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:41:38,006 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:41:38,006 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 22:41:38,011 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 22:41:38,031 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-14 22:41:38,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:38,058 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-14 22:41:38,062 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 22:41:38,194 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-12-14 22:41:38,194 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 22:41:38,352 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-12-14 22:41:38,353 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1168629602] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 22:41:38,353 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 22:41:38,353 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7, 7] total 15 [2021-12-14 22:41:38,353 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869421686] [2021-12-14 22:41:38,353 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 22:41:38,354 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-12-14 22:41:38,354 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:41:38,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-12-14 22:41:38,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2021-12-14 22:41:38,355 INFO L87 Difference]: Start difference. First operand 30 states and 36 transitions. Second operand has 15 states, 15 states have (on average 2.466666666666667) internal successors, (37), 15 states have internal predecessors, (37), 4 states have call successors, (5), 1 states have call predecessors, (5), 5 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2021-12-14 22:41:38,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:41:38,637 INFO L93 Difference]: Finished difference Result 91 states and 129 transitions. [2021-12-14 22:41:38,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-14 22:41:38,640 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.466666666666667) internal successors, (37), 15 states have internal predecessors, (37), 4 states have call successors, (5), 1 states have call predecessors, (5), 5 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) Word has length 31 [2021-12-14 22:41:38,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:41:38,642 INFO L225 Difference]: With dead ends: 91 [2021-12-14 22:41:38,642 INFO L226 Difference]: Without dead ends: 65 [2021-12-14 22:41:38,644 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=126, Invalid=380, Unknown=0, NotChecked=0, Total=506 [2021-12-14 22:41:38,644 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 107 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-14 22:41:38,644 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 101 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-14 22:41:38,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2021-12-14 22:41:38,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 53. [2021-12-14 22:41:38,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 39 states have (on average 1.1025641025641026) internal successors, (43), 42 states have internal predecessors, (43), 7 states have call successors, (7), 2 states have call predecessors, (7), 5 states have return successors, (18), 8 states have call predecessors, (18), 6 states have call successors, (18) [2021-12-14 22:41:38,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 68 transitions. [2021-12-14 22:41:38,654 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 68 transitions. Word has length 31 [2021-12-14 22:41:38,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:41:38,654 INFO L470 AbstractCegarLoop]: Abstraction has 53 states and 68 transitions. [2021-12-14 22:41:38,654 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.466666666666667) internal successors, (37), 15 states have internal predecessors, (37), 4 states have call successors, (5), 1 states have call predecessors, (5), 5 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2021-12-14 22:41:38,655 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 68 transitions. [2021-12-14 22:41:38,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-12-14 22:41:38,656 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:41:38,656 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 22:41:38,678 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-12-14 22:41:38,877 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:41:38,878 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-14 22:41:38,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:41:38,879 INFO L85 PathProgramCache]: Analyzing trace with hash -1550339203, now seen corresponding path program 2 times [2021-12-14 22:41:38,879 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:41:38,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775644831] [2021-12-14 22:41:38,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:41:38,879 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:41:38,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:38,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-14 22:41:38,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:38,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 22:41:38,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:38,961 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-12-14 22:41:38,962 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:41:38,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775644831] [2021-12-14 22:41:38,962 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775644831] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 22:41:38,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [523535359] [2021-12-14 22:41:38,962 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-14 22:41:38,962 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:41:38,963 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 22:41:38,964 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 22:41:39,012 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-14 22:41:39,016 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-14 22:41:39,016 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-14 22:41:39,017 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-14 22:41:39,018 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 22:41:39,103 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-12-14 22:41:39,104 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-14 22:41:39,104 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [523535359] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 22:41:39,104 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-14 22:41:39,104 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2021-12-14 22:41:39,105 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166178688] [2021-12-14 22:41:39,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 22:41:39,105 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 22:41:39,105 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:41:39,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 22:41:39,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-12-14 22:41:39,106 INFO L87 Difference]: Start difference. First operand 53 states and 68 transitions. Second operand has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-14 22:41:39,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:41:39,135 INFO L93 Difference]: Finished difference Result 61 states and 76 transitions. [2021-12-14 22:41:39,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 22:41:39,135 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 25 [2021-12-14 22:41:39,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:41:39,137 INFO L225 Difference]: With dead ends: 61 [2021-12-14 22:41:39,137 INFO L226 Difference]: Without dead ends: 60 [2021-12-14 22:41:39,137 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-12-14 22:41:39,138 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 9 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 22:41:39,138 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 51 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 22:41:39,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2021-12-14 22:41:39,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 55. [2021-12-14 22:41:39,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 41 states have (on average 1.0975609756097562) internal successors, (45), 43 states have internal predecessors, (45), 7 states have call successors, (7), 2 states have call predecessors, (7), 5 states have return successors, (18), 9 states have call predecessors, (18), 6 states have call successors, (18) [2021-12-14 22:41:39,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 70 transitions. [2021-12-14 22:41:39,153 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 70 transitions. Word has length 25 [2021-12-14 22:41:39,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:41:39,153 INFO L470 AbstractCegarLoop]: Abstraction has 55 states and 70 transitions. [2021-12-14 22:41:39,153 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-14 22:41:39,153 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 70 transitions. [2021-12-14 22:41:39,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-12-14 22:41:39,154 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:41:39,154 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 22:41:39,172 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-14 22:41:39,359 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-12-14 22:41:39,360 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting fibonacciErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-14 22:41:39,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:41:39,360 INFO L85 PathProgramCache]: Analyzing trace with hash -815874983, now seen corresponding path program 1 times [2021-12-14 22:41:39,360 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:41:39,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251539842] [2021-12-14 22:41:39,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:41:39,361 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:41:39,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:39,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-14 22:41:39,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:39,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 22:41:39,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:39,429 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-12-14 22:41:39,429 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:41:39,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251539842] [2021-12-14 22:41:39,429 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251539842] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 22:41:39,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1015287340] [2021-12-14 22:41:39,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:41:39,430 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:41:39,430 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 22:41:39,431 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 22:41:39,432 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-14 22:41:39,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:39,470 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-14 22:41:39,472 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 22:41:39,537 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-12-14 22:41:39,537 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 22:41:39,614 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-12-14 22:41:39,614 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1015287340] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 22:41:39,614 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 22:41:39,614 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 11 [2021-12-14 22:41:39,615 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159125903] [2021-12-14 22:41:39,615 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 22:41:39,615 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-14 22:41:39,615 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:41:39,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-14 22:41:39,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2021-12-14 22:41:39,616 INFO L87 Difference]: Start difference. First operand 55 states and 70 transitions. Second operand has 12 states, 11 states have (on average 3.272727272727273) internal successors, (36), 12 states have internal predecessors, (36), 4 states have call successors, (5), 1 states have call predecessors, (5), 5 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2021-12-14 22:41:39,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:41:39,697 INFO L93 Difference]: Finished difference Result 70 states and 94 transitions. [2021-12-14 22:41:39,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-14 22:41:39,697 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.272727272727273) internal successors, (36), 12 states have internal predecessors, (36), 4 states have call successors, (5), 1 states have call predecessors, (5), 5 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 26 [2021-12-14 22:41:39,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:41:39,699 INFO L225 Difference]: With dead ends: 70 [2021-12-14 22:41:39,699 INFO L226 Difference]: Without dead ends: 69 [2021-12-14 22:41:39,699 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2021-12-14 22:41:39,700 INFO L933 BasicCegarLoop]: 28 mSDtfsCounter, 17 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 22:41:39,700 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 147 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 22:41:39,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2021-12-14 22:41:39,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 67. [2021-12-14 22:41:39,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 51 states have (on average 1.0980392156862746) internal successors, (56), 52 states have internal predecessors, (56), 8 states have call successors, (8), 2 states have call predecessors, (8), 6 states have return successors, (27), 12 states have call predecessors, (27), 7 states have call successors, (27) [2021-12-14 22:41:39,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 91 transitions. [2021-12-14 22:41:39,708 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 91 transitions. Word has length 26 [2021-12-14 22:41:39,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:41:39,709 INFO L470 AbstractCegarLoop]: Abstraction has 67 states and 91 transitions. [2021-12-14 22:41:39,709 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.272727272727273) internal successors, (36), 12 states have internal predecessors, (36), 4 states have call successors, (5), 1 states have call predecessors, (5), 5 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2021-12-14 22:41:39,709 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 91 transitions. [2021-12-14 22:41:39,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-12-14 22:41:39,710 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:41:39,711 INFO L514 BasicCegarLoop]: trace histogram [5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 22:41:39,734 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-14 22:41:39,925 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:41:39,926 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-14 22:41:39,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:41:39,926 INFO L85 PathProgramCache]: Analyzing trace with hash 631942748, now seen corresponding path program 1 times [2021-12-14 22:41:39,926 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:41:39,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210373718] [2021-12-14 22:41:39,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:41:39,927 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:41:39,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:39,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-14 22:41:39,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:39,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:39,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:39,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:41:39,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:40,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-14 22:41:40,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:40,017 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-12-14 22:41:40,018 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:41:40,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210373718] [2021-12-14 22:41:40,018 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210373718] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 22:41:40,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2053473470] [2021-12-14 22:41:40,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:41:40,018 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:41:40,019 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 22:41:40,020 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 22:41:40,022 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-14 22:41:40,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:40,062 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-14 22:41:40,065 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 22:41:40,175 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2021-12-14 22:41:40,175 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 22:41:40,387 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-12-14 22:41:40,387 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2053473470] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 22:41:40,387 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 22:41:40,387 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 7] total 13 [2021-12-14 22:41:40,388 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326119648] [2021-12-14 22:41:40,388 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 22:41:40,389 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-12-14 22:41:40,390 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:41:40,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-12-14 22:41:40,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2021-12-14 22:41:40,392 INFO L87 Difference]: Start difference. First operand 67 states and 91 transitions. Second operand has 14 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 14 states have internal predecessors, (37), 3 states have call successors, (4), 1 states have call predecessors, (4), 4 states have return successors, (8), 8 states have call predecessors, (8), 3 states have call successors, (8) [2021-12-14 22:41:40,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:41:40,537 INFO L93 Difference]: Finished difference Result 138 states and 205 transitions. [2021-12-14 22:41:40,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-12-14 22:41:40,538 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 14 states have internal predecessors, (37), 3 states have call successors, (4), 1 states have call predecessors, (4), 4 states have return successors, (8), 8 states have call predecessors, (8), 3 states have call successors, (8) Word has length 45 [2021-12-14 22:41:40,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:41:40,542 INFO L225 Difference]: With dead ends: 138 [2021-12-14 22:41:40,543 INFO L226 Difference]: Without dead ends: 137 [2021-12-14 22:41:40,543 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-14 22:41:40,544 INFO L933 BasicCegarLoop]: 25 mSDtfsCounter, 30 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-14 22:41:40,544 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 130 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-14 22:41:40,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2021-12-14 22:41:40,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 99. [2021-12-14 22:41:40,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 77 states have (on average 1.077922077922078) internal successors, (83), 76 states have internal predecessors, (83), 11 states have call successors, (11), 2 states have call predecessors, (11), 9 states have return successors, (66), 20 states have call predecessors, (66), 10 states have call successors, (66) [2021-12-14 22:41:40,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 160 transitions. [2021-12-14 22:41:40,562 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 160 transitions. Word has length 45 [2021-12-14 22:41:40,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:41:40,562 INFO L470 AbstractCegarLoop]: Abstraction has 99 states and 160 transitions. [2021-12-14 22:41:40,562 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 14 states have internal predecessors, (37), 3 states have call successors, (4), 1 states have call predecessors, (4), 4 states have return successors, (8), 8 states have call predecessors, (8), 3 states have call successors, (8) [2021-12-14 22:41:40,562 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 160 transitions. [2021-12-14 22:41:40,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-12-14 22:41:40,564 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:41:40,565 INFO L514 BasicCegarLoop]: trace histogram [8, 6, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1] [2021-12-14 22:41:40,591 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-12-14 22:41:40,787 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:41:40,787 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting fibonacciErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-14 22:41:40,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:41:40,788 INFO L85 PathProgramCache]: Analyzing trace with hash -1516546273, now seen corresponding path program 1 times [2021-12-14 22:41:40,788 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:41:40,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157435299] [2021-12-14 22:41:40,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:41:40,788 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:41:40,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:40,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-14 22:41:40,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:40,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:40,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:40,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:40,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:40,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-14 22:41:40,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:40,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 22:41:40,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:40,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-14 22:41:40,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:40,859 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2021-12-14 22:41:40,859 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:41:40,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157435299] [2021-12-14 22:41:40,860 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157435299] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 22:41:40,860 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 22:41:40,860 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 22:41:40,860 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099936426] [2021-12-14 22:41:40,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 22:41:40,861 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 22:41:40,861 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:41:40,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 22:41:40,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-14 22:41:40,862 INFO L87 Difference]: Start difference. First operand 99 states and 160 transitions. Second operand has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-14 22:41:40,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:41:40,885 INFO L93 Difference]: Finished difference Result 112 states and 174 transitions. [2021-12-14 22:41:40,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 22:41:40,885 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 70 [2021-12-14 22:41:40,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:41:40,887 INFO L225 Difference]: With dead ends: 112 [2021-12-14 22:41:40,887 INFO L226 Difference]: Without dead ends: 111 [2021-12-14 22:41:40,888 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-14 22:41:40,888 INFO L933 BasicCegarLoop]: 23 mSDtfsCounter, 5 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 22:41:40,889 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 61 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 22:41:40,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2021-12-14 22:41:40,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 99. [2021-12-14 22:41:40,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 77 states have (on average 1.077922077922078) internal successors, (83), 76 states have internal predecessors, (83), 11 states have call successors, (11), 2 states have call predecessors, (11), 9 states have return successors, (66), 20 states have call predecessors, (66), 10 states have call successors, (66) [2021-12-14 22:41:40,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 160 transitions. [2021-12-14 22:41:40,905 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 160 transitions. Word has length 70 [2021-12-14 22:41:40,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:41:40,906 INFO L470 AbstractCegarLoop]: Abstraction has 99 states and 160 transitions. [2021-12-14 22:41:40,906 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-14 22:41:40,906 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 160 transitions. [2021-12-14 22:41:40,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-12-14 22:41:40,908 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:41:40,909 INFO L514 BasicCegarLoop]: trace histogram [11, 9, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1] [2021-12-14 22:41:40,909 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-14 22:41:40,909 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting fibonacciErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-14 22:41:40,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:41:40,910 INFO L85 PathProgramCache]: Analyzing trace with hash 777324869, now seen corresponding path program 2 times [2021-12-14 22:41:40,910 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:41:40,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448824887] [2021-12-14 22:41:40,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:41:40,910 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:41:40,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:40,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-14 22:41:40,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:40,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:40,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:40,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:41:40,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:40,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-14 22:41:40,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:40,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:40,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:40,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:40,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:40,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:41:40,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:40,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:41:40,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:40,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-14 22:41:40,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:41,006 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2021-12-14 22:41:41,007 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:41:41,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448824887] [2021-12-14 22:41:41,007 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448824887] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 22:41:41,007 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 22:41:41,007 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 22:41:41,008 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011138574] [2021-12-14 22:41:41,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 22:41:41,008 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 22:41:41,008 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:41:41,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 22:41:41,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-14 22:41:41,009 INFO L87 Difference]: Start difference. First operand 99 states and 160 transitions. Second operand has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-14 22:41:41,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:41:41,034 INFO L93 Difference]: Finished difference Result 112 states and 174 transitions. [2021-12-14 22:41:41,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 22:41:41,034 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 99 [2021-12-14 22:41:41,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:41:41,036 INFO L225 Difference]: With dead ends: 112 [2021-12-14 22:41:41,037 INFO L226 Difference]: Without dead ends: 111 [2021-12-14 22:41:41,037 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-14 22:41:41,038 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 6 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 22:41:41,038 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 65 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 22:41:41,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2021-12-14 22:41:41,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 99. [2021-12-14 22:41:41,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 77 states have (on average 1.077922077922078) internal successors, (83), 76 states have internal predecessors, (83), 11 states have call successors, (11), 2 states have call predecessors, (11), 9 states have return successors, (66), 20 states have call predecessors, (66), 10 states have call successors, (66) [2021-12-14 22:41:41,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 160 transitions. [2021-12-14 22:41:41,053 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 160 transitions. Word has length 99 [2021-12-14 22:41:41,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:41:41,054 INFO L470 AbstractCegarLoop]: Abstraction has 99 states and 160 transitions. [2021-12-14 22:41:41,054 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-14 22:41:41,054 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 160 transitions. [2021-12-14 22:41:41,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-12-14 22:41:41,058 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:41:41,058 INFO L514 BasicCegarLoop]: trace histogram [13, 12, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 3, 1, 1, 1, 1, 1] [2021-12-14 22:41:41,058 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-14 22:41:41,058 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-14 22:41:41,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:41:41,059 INFO L85 PathProgramCache]: Analyzing trace with hash -558108924, now seen corresponding path program 2 times [2021-12-14 22:41:41,059 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:41:41,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112633287] [2021-12-14 22:41:41,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:41:41,060 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:41:41,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:41,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-14 22:41:41,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:41,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:41,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:41,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:41:41,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:41,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-14 22:41:41,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:41,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:41,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:41,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:41,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:41,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:41:41,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:41,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:41:41,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:41,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:41,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:41,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:41,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:41,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:41:41,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:41,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:41:41,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:41,218 INFO L134 CoverageAnalysis]: Checked inductivity of 478 backedges. 61 proven. 158 refuted. 0 times theorem prover too weak. 259 trivial. 0 not checked. [2021-12-14 22:41:41,219 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:41:41,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112633287] [2021-12-14 22:41:41,219 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112633287] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 22:41:41,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1489132124] [2021-12-14 22:41:41,219 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-14 22:41:41,220 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:41:41,220 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 22:41:41,221 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 22:41:41,222 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-14 22:41:41,278 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-14 22:41:41,278 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-14 22:41:41,280 INFO L263 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-14 22:41:41,283 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 22:41:41,498 INFO L134 CoverageAnalysis]: Checked inductivity of 478 backedges. 68 proven. 206 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2021-12-14 22:41:41,498 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 22:41:41,941 INFO L134 CoverageAnalysis]: Checked inductivity of 478 backedges. 68 proven. 209 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2021-12-14 22:41:41,941 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1489132124] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 22:41:41,941 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 22:41:41,941 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 11] total 17 [2021-12-14 22:41:41,941 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080848212] [2021-12-14 22:41:41,941 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 22:41:41,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-12-14 22:41:41,942 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:41:41,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-12-14 22:41:41,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=196, Unknown=0, NotChecked=0, Total=272 [2021-12-14 22:41:41,943 INFO L87 Difference]: Start difference. First operand 99 states and 160 transitions. Second operand has 17 states, 17 states have (on average 5.294117647058823) internal successors, (90), 17 states have internal predecessors, (90), 12 states have call successors, (16), 1 states have call predecessors, (16), 5 states have return successors, (16), 8 states have call predecessors, (16), 12 states have call successors, (16) [2021-12-14 22:41:42,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:41:42,066 INFO L93 Difference]: Finished difference Result 178 states and 303 transitions. [2021-12-14 22:41:42,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-14 22:41:42,067 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.294117647058823) internal successors, (90), 17 states have internal predecessors, (90), 12 states have call successors, (16), 1 states have call predecessors, (16), 5 states have return successors, (16), 8 states have call predecessors, (16), 12 states have call successors, (16) Word has length 123 [2021-12-14 22:41:42,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:41:42,068 INFO L225 Difference]: With dead ends: 178 [2021-12-14 22:41:42,068 INFO L226 Difference]: Without dead ends: 83 [2021-12-14 22:41:42,070 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 261 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=284, Unknown=0, NotChecked=0, Total=420 [2021-12-14 22:41:42,070 INFO L933 BasicCegarLoop]: 16 mSDtfsCounter, 105 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-14 22:41:42,070 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 64 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-14 22:41:42,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2021-12-14 22:41:42,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 70. [2021-12-14 22:41:42,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 55 states have (on average 1.1090909090909091) internal successors, (61), 53 states have internal predecessors, (61), 7 states have call successors, (7), 4 states have call predecessors, (7), 6 states have return successors, (26), 12 states have call predecessors, (26), 6 states have call successors, (26) [2021-12-14 22:41:42,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 94 transitions. [2021-12-14 22:41:42,089 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 94 transitions. Word has length 123 [2021-12-14 22:41:42,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:41:42,089 INFO L470 AbstractCegarLoop]: Abstraction has 70 states and 94 transitions. [2021-12-14 22:41:42,090 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.294117647058823) internal successors, (90), 17 states have internal predecessors, (90), 12 states have call successors, (16), 1 states have call predecessors, (16), 5 states have return successors, (16), 8 states have call predecessors, (16), 12 states have call successors, (16) [2021-12-14 22:41:42,090 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 94 transitions. [2021-12-14 22:41:42,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2021-12-14 22:41:42,095 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:41:42,095 INFO L514 BasicCegarLoop]: trace histogram [19, 17, 15, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 4, 1, 1, 1, 1, 1] [2021-12-14 22:41:42,113 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-12-14 22:41:42,303 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-12-14 22:41:42,304 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-14 22:41:42,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:41:42,304 INFO L85 PathProgramCache]: Analyzing trace with hash -167323687, now seen corresponding path program 3 times [2021-12-14 22:41:42,304 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:41:42,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479144625] [2021-12-14 22:41:42,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:41:42,305 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:41:42,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:42,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-14 22:41:42,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:42,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:42,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:42,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:42,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:42,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:41:42,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:42,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:41:42,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:42,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-14 22:41:42,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:42,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:42,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:42,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:42,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:42,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:41:42,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:42,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:41:42,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:42,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-14 22:41:42,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:42,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:42,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:42,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:42,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:42,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:42,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:42,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:41:42,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:42,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:41:42,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:42,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 22:41:42,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:42,543 INFO L134 CoverageAnalysis]: Checked inductivity of 1048 backedges. 102 proven. 417 refuted. 0 times theorem prover too weak. 529 trivial. 0 not checked. [2021-12-14 22:41:42,543 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:41:42,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479144625] [2021-12-14 22:41:42,543 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479144625] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 22:41:42,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1685726470] [2021-12-14 22:41:42,544 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-14 22:41:42,544 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:41:42,544 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 22:41:42,547 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 22:41:42,551 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-14 22:41:42,596 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2021-12-14 22:41:42,596 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-14 22:41:42,597 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-14 22:41:42,601 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 22:41:42,874 INFO L134 CoverageAnalysis]: Checked inductivity of 1048 backedges. 313 proven. 21 refuted. 0 times theorem prover too weak. 714 trivial. 0 not checked. [2021-12-14 22:41:42,874 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 22:41:43,401 INFO L134 CoverageAnalysis]: Checked inductivity of 1048 backedges. 313 proven. 22 refuted. 0 times theorem prover too weak. 713 trivial. 0 not checked. [2021-12-14 22:41:43,401 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1685726470] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 22:41:43,401 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 22:41:43,401 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 8, 9] total 21 [2021-12-14 22:41:43,401 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678019752] [2021-12-14 22:41:43,401 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 22:41:43,402 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-12-14 22:41:43,402 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:41:43,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-12-14 22:41:43,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=324, Unknown=0, NotChecked=0, Total=420 [2021-12-14 22:41:43,403 INFO L87 Difference]: Start difference. First operand 70 states and 94 transitions. Second operand has 21 states, 21 states have (on average 4.714285714285714) internal successors, (99), 21 states have internal predecessors, (99), 11 states have call successors, (16), 2 states have call predecessors, (16), 8 states have return successors, (18), 13 states have call predecessors, (18), 10 states have call successors, (18) [2021-12-14 22:41:43,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:41:43,634 INFO L93 Difference]: Finished difference Result 141 states and 198 transitions. [2021-12-14 22:41:43,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-14 22:41:43,635 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 4.714285714285714) internal successors, (99), 21 states have internal predecessors, (99), 11 states have call successors, (16), 2 states have call predecessors, (16), 8 states have return successors, (18), 13 states have call predecessors, (18), 10 states have call successors, (18) Word has length 177 [2021-12-14 22:41:43,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:41:43,636 INFO L225 Difference]: With dead ends: 141 [2021-12-14 22:41:43,636 INFO L226 Difference]: Without dead ends: 75 [2021-12-14 22:41:43,637 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 409 GetRequests, 380 SyntacticMatches, 2 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=210, Invalid=602, Unknown=0, NotChecked=0, Total=812 [2021-12-14 22:41:43,637 INFO L933 BasicCegarLoop]: 30 mSDtfsCounter, 166 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-14 22:41:43,637 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 126 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-14 22:41:43,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2021-12-14 22:41:43,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 65. [2021-12-14 22:41:43,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 51 states have (on average 1.0784313725490196) internal successors, (55), 50 states have internal predecessors, (55), 7 states have call successors, (7), 6 states have call predecessors, (7), 5 states have return successors, (11), 8 states have call predecessors, (11), 6 states have call successors, (11) [2021-12-14 22:41:43,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 73 transitions. [2021-12-14 22:41:43,641 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 73 transitions. Word has length 177 [2021-12-14 22:41:43,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:41:43,642 INFO L470 AbstractCegarLoop]: Abstraction has 65 states and 73 transitions. [2021-12-14 22:41:43,642 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 4.714285714285714) internal successors, (99), 21 states have internal predecessors, (99), 11 states have call successors, (16), 2 states have call predecessors, (16), 8 states have return successors, (18), 13 states have call predecessors, (18), 10 states have call successors, (18) [2021-12-14 22:41:43,642 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 73 transitions. [2021-12-14 22:41:43,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-12-14 22:41:43,643 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:41:43,643 INFO L514 BasicCegarLoop]: trace histogram [10, 8, 8, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 1, 1, 1, 1, 1] [2021-12-14 22:41:43,671 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-12-14 22:41:43,855 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:41:43,856 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting fibonacciErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-14 22:41:43,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:41:43,856 INFO L85 PathProgramCache]: Analyzing trace with hash -1596262010, now seen corresponding path program 3 times [2021-12-14 22:41:43,856 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:41:43,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053003030] [2021-12-14 22:41:43,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:41:43,856 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:41:43,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:43,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-14 22:41:43,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:43,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:43,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:43,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:43,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:43,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:41:43,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:43,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:41:43,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:43,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-14 22:41:43,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:43,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:43,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:43,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:41:43,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:43,962 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 38 proven. 23 refuted. 0 times theorem prover too weak. 185 trivial. 0 not checked. [2021-12-14 22:41:43,962 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:41:43,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053003030] [2021-12-14 22:41:43,962 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053003030] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 22:41:43,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1694292417] [2021-12-14 22:41:43,962 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-14 22:41:43,962 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:41:43,963 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 22:41:43,964 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 22:41:43,965 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-14 22:41:44,001 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-12-14 22:41:44,001 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-14 22:41:44,002 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-14 22:41:44,004 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 22:41:44,161 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 62 proven. 5 refuted. 0 times theorem prover too weak. 179 trivial. 0 not checked. [2021-12-14 22:41:44,162 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 22:41:44,388 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 62 proven. 5 refuted. 0 times theorem prover too weak. 179 trivial. 0 not checked. [2021-12-14 22:41:44,389 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1694292417] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 22:41:44,389 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 22:41:44,389 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 7] total 14 [2021-12-14 22:41:44,389 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991010576] [2021-12-14 22:41:44,390 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 22:41:44,390 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-12-14 22:41:44,390 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:41:44,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-12-14 22:41:44,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2021-12-14 22:41:44,391 INFO L87 Difference]: Start difference. First operand 65 states and 73 transitions. Second operand has 15 states, 14 states have (on average 3.7142857142857144) internal successors, (52), 15 states have internal predecessors, (52), 5 states have call successors, (7), 1 states have call predecessors, (7), 4 states have return successors, (10), 9 states have call predecessors, (10), 5 states have call successors, (10) [2021-12-14 22:41:44,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:41:44,460 INFO L93 Difference]: Finished difference Result 65 states and 73 transitions. [2021-12-14 22:41:44,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-14 22:41:44,461 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 3.7142857142857144) internal successors, (52), 15 states have internal predecessors, (52), 5 states have call successors, (7), 1 states have call predecessors, (7), 4 states have return successors, (10), 9 states have call predecessors, (10), 5 states have call successors, (10) Word has length 91 [2021-12-14 22:41:44,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:41:44,462 INFO L225 Difference]: With dead ends: 65 [2021-12-14 22:41:44,462 INFO L226 Difference]: Without dead ends: 64 [2021-12-14 22:41:44,462 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2021-12-14 22:41:44,462 INFO L933 BasicCegarLoop]: 27 mSDtfsCounter, 12 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 22:41:44,463 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 176 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 22:41:44,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2021-12-14 22:41:44,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2021-12-14 22:41:44,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 51 states have (on average 1.0588235294117647) internal successors, (54), 49 states have internal predecessors, (54), 7 states have call successors, (7), 6 states have call predecessors, (7), 5 states have return successors, (11), 8 states have call predecessors, (11), 6 states have call successors, (11) [2021-12-14 22:41:44,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 72 transitions. [2021-12-14 22:41:44,467 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 72 transitions. Word has length 91 [2021-12-14 22:41:44,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:41:44,468 INFO L470 AbstractCegarLoop]: Abstraction has 64 states and 72 transitions. [2021-12-14 22:41:44,468 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 3.7142857142857144) internal successors, (52), 15 states have internal predecessors, (52), 5 states have call successors, (7), 1 states have call predecessors, (7), 4 states have return successors, (10), 9 states have call predecessors, (10), 5 states have call successors, (10) [2021-12-14 22:41:44,468 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 72 transitions. [2021-12-14 22:41:44,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2021-12-14 22:41:44,470 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:41:44,470 INFO L514 BasicCegarLoop]: trace histogram [25, 23, 20, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 10, 10, 8, 5, 1, 1, 1, 1, 1] [2021-12-14 22:41:44,495 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-12-14 22:41:44,671 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:41:44,671 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-14 22:41:44,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:41:44,671 INFO L85 PathProgramCache]: Analyzing trace with hash 1496476088, now seen corresponding path program 4 times [2021-12-14 22:41:44,672 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:41:44,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701168252] [2021-12-14 22:41:44,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:41:44,672 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:41:44,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:44,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-14 22:41:44,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:44,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:44,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:44,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:44,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:44,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:44,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:44,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:41:44,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:44,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:41:44,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:44,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 22:41:44,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:44,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:44,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:44,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:41:44,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:44,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-14 22:41:44,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:44,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:44,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:44,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:44,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:44,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:44,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:44,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:41:44,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:44,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:41:44,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:44,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 22:41:44,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:44,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:44,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:44,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:41:44,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:44,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-12-14 22:41:44,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:44,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:44,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:44,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:44,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:44,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:41:44,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:44,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:41:44,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:44,985 INFO L134 CoverageAnalysis]: Checked inductivity of 1913 backedges. 245 proven. 631 refuted. 0 times theorem prover too weak. 1037 trivial. 0 not checked. [2021-12-14 22:41:44,985 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:41:44,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701168252] [2021-12-14 22:41:44,985 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701168252] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 22:41:44,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [340868556] [2021-12-14 22:41:44,985 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-12-14 22:41:44,986 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:41:44,986 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 22:41:44,992 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 22:41:44,993 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-12-14 22:41:45,078 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-12-14 22:41:45,078 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-14 22:41:45,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 18 conjunts are in the unsatisfiable core [2021-12-14 22:41:45,082 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 22:41:45,499 INFO L134 CoverageAnalysis]: Checked inductivity of 1913 backedges. 893 proven. 533 refuted. 0 times theorem prover too weak. 487 trivial. 0 not checked. [2021-12-14 22:41:45,499 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 22:41:46,470 INFO L134 CoverageAnalysis]: Checked inductivity of 1913 backedges. 273 proven. 850 refuted. 0 times theorem prover too weak. 790 trivial. 0 not checked. [2021-12-14 22:41:46,470 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [340868556] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 22:41:46,470 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 22:41:46,471 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13, 18] total 26 [2021-12-14 22:41:46,471 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611569066] [2021-12-14 22:41:46,471 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 22:41:46,472 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-12-14 22:41:46,472 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:41:46,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-12-14 22:41:46,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=159, Invalid=491, Unknown=0, NotChecked=0, Total=650 [2021-12-14 22:41:46,473 INFO L87 Difference]: Start difference. First operand 64 states and 72 transitions. Second operand has 26 states, 26 states have (on average 5.884615384615385) internal successors, (153), 26 states have internal predecessors, (153), 22 states have call successors, (29), 3 states have call predecessors, (29), 9 states have return successors, (34), 14 states have call predecessors, (34), 21 states have call successors, (34) [2021-12-14 22:41:46,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:41:46,765 INFO L93 Difference]: Finished difference Result 153 states and 185 transitions. [2021-12-14 22:41:46,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-12-14 22:41:46,765 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.884615384615385) internal successors, (153), 26 states have internal predecessors, (153), 22 states have call successors, (29), 3 states have call predecessors, (29), 9 states have return successors, (34), 14 states have call predecessors, (34), 21 states have call successors, (34) Word has length 236 [2021-12-14 22:41:46,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:41:46,766 INFO L225 Difference]: With dead ends: 153 [2021-12-14 22:41:46,766 INFO L226 Difference]: Without dead ends: 95 [2021-12-14 22:41:46,767 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 547 GetRequests, 508 SyntacticMatches, 2 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 376 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=428, Invalid=1054, Unknown=0, NotChecked=0, Total=1482 [2021-12-14 22:41:46,768 INFO L933 BasicCegarLoop]: 22 mSDtfsCounter, 214 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-14 22:41:46,768 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [214 Valid, 111 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-14 22:41:46,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2021-12-14 22:41:46,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 82. [2021-12-14 22:41:46,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 66 states have (on average 1.0757575757575757) internal successors, (71), 63 states have internal predecessors, (71), 9 states have call successors, (9), 8 states have call predecessors, (9), 6 states have return successors, (17), 10 states have call predecessors, (17), 8 states have call successors, (17) [2021-12-14 22:41:46,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 97 transitions. [2021-12-14 22:41:46,773 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 97 transitions. Word has length 236 [2021-12-14 22:41:46,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:41:46,773 INFO L470 AbstractCegarLoop]: Abstraction has 82 states and 97 transitions. [2021-12-14 22:41:46,774 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.884615384615385) internal successors, (153), 26 states have internal predecessors, (153), 22 states have call successors, (29), 3 states have call predecessors, (29), 9 states have return successors, (34), 14 states have call predecessors, (34), 21 states have call successors, (34) [2021-12-14 22:41:46,774 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 97 transitions. [2021-12-14 22:41:46,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-12-14 22:41:46,775 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:41:46,775 INFO L514 BasicCegarLoop]: trace histogram [13, 12, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 3, 1, 1, 1, 1, 1] [2021-12-14 22:41:46,797 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-12-14 22:41:46,987 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-12-14 22:41:46,988 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-14 22:41:46,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:41:46,988 INFO L85 PathProgramCache]: Analyzing trace with hash 361843588, now seen corresponding path program 5 times [2021-12-14 22:41:46,988 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:41:46,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811301960] [2021-12-14 22:41:46,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:41:46,989 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:41:46,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:47,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-14 22:41:47,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:47,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:47,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:47,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:47,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:47,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:47,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:47,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:41:47,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:47,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:41:47,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:47,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 22:41:47,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:47,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:47,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:47,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:41:47,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:47,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-14 22:41:47,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:47,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:47,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:47,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:41:47,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:47,134 INFO L134 CoverageAnalysis]: Checked inductivity of 478 backedges. 197 proven. 68 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2021-12-14 22:41:47,135 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:41:47,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811301960] [2021-12-14 22:41:47,135 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811301960] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 22:41:47,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [16860271] [2021-12-14 22:41:47,135 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-12-14 22:41:47,135 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:41:47,136 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 22:41:47,140 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 22:41:47,141 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-12-14 22:41:47,196 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2021-12-14 22:41:47,196 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-14 22:41:47,197 INFO L263 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 12 conjunts are in the unsatisfiable core [2021-12-14 22:41:47,200 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 22:41:47,436 INFO L134 CoverageAnalysis]: Checked inductivity of 478 backedges. 158 proven. 137 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2021-12-14 22:41:47,436 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 22:41:47,965 INFO L134 CoverageAnalysis]: Checked inductivity of 478 backedges. 162 proven. 142 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2021-12-14 22:41:47,965 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [16860271] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 22:41:47,965 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 22:41:47,966 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 13] total 20 [2021-12-14 22:41:47,966 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393342092] [2021-12-14 22:41:47,966 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 22:41:47,966 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-12-14 22:41:47,966 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:41:47,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-12-14 22:41:47,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=283, Unknown=0, NotChecked=0, Total=380 [2021-12-14 22:41:47,967 INFO L87 Difference]: Start difference. First operand 82 states and 97 transitions. Second operand has 20 states, 20 states have (on average 5.2) internal successors, (104), 20 states have internal predecessors, (104), 12 states have call successors, (18), 1 states have call predecessors, (18), 7 states have return successors, (20), 12 states have call predecessors, (20), 12 states have call successors, (20) [2021-12-14 22:41:48,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:41:48,146 INFO L93 Difference]: Finished difference Result 162 states and 202 transitions. [2021-12-14 22:41:48,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-14 22:41:48,147 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 5.2) internal successors, (104), 20 states have internal predecessors, (104), 12 states have call successors, (18), 1 states have call predecessors, (18), 7 states have return successors, (20), 12 states have call predecessors, (20), 12 states have call successors, (20) Word has length 123 [2021-12-14 22:41:48,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:41:48,148 INFO L225 Difference]: With dead ends: 162 [2021-12-14 22:41:48,148 INFO L226 Difference]: Without dead ends: 86 [2021-12-14 22:41:48,149 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 259 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2021-12-14 22:41:48,151 INFO L933 BasicCegarLoop]: 34 mSDtfsCounter, 63 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-14 22:41:48,155 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 122 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-14 22:41:48,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2021-12-14 22:41:48,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 83. [2021-12-14 22:41:48,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 66 states have (on average 1.0454545454545454) internal successors, (69), 65 states have internal predecessors, (69), 10 states have call successors, (10), 8 states have call predecessors, (10), 6 states have return successors, (18), 9 states have call predecessors, (18), 9 states have call successors, (18) [2021-12-14 22:41:48,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 97 transitions. [2021-12-14 22:41:48,161 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 97 transitions. Word has length 123 [2021-12-14 22:41:48,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:41:48,162 INFO L470 AbstractCegarLoop]: Abstraction has 83 states and 97 transitions. [2021-12-14 22:41:48,162 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 5.2) internal successors, (104), 20 states have internal predecessors, (104), 12 states have call successors, (18), 1 states have call predecessors, (18), 7 states have return successors, (20), 12 states have call predecessors, (20), 12 states have call successors, (20) [2021-12-14 22:41:48,162 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 97 transitions. [2021-12-14 22:41:48,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2021-12-14 22:41:48,164 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:41:48,164 INFO L514 BasicCegarLoop]: trace histogram [16, 14, 13, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 3, 1, 1, 1, 1, 1] [2021-12-14 22:41:48,194 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-12-14 22:41:48,389 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-12-14 22:41:48,389 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-14 22:41:48,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:41:48,389 INFO L85 PathProgramCache]: Analyzing trace with hash 534661593, now seen corresponding path program 6 times [2021-12-14 22:41:48,390 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:41:48,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606498455] [2021-12-14 22:41:48,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:41:48,390 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:41:48,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:48,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-14 22:41:48,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:48,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:48,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:48,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:48,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:48,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:48,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:48,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:41:48,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:48,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:41:48,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:48,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 22:41:48,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:48,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:48,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:48,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:41:48,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:48,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-14 22:41:48,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:48,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:48,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:48,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:48,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:48,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:41:48,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:48,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:41:48,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:48,611 INFO L134 CoverageAnalysis]: Checked inductivity of 725 backedges. 78 proven. 129 refuted. 0 times theorem prover too weak. 518 trivial. 0 not checked. [2021-12-14 22:41:48,611 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:41:48,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606498455] [2021-12-14 22:41:48,611 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606498455] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 22:41:48,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1125224392] [2021-12-14 22:41:48,611 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-12-14 22:41:48,612 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:41:48,612 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 22:41:48,613 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 22:41:48,652 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-12-14 22:41:48,701 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 13 check-sat command(s) [2021-12-14 22:41:48,701 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-14 22:41:48,703 INFO L263 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 29 conjunts are in the unsatisfiable core [2021-12-14 22:41:48,705 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 22:41:48,991 INFO L134 CoverageAnalysis]: Checked inductivity of 725 backedges. 78 proven. 129 refuted. 0 times theorem prover too weak. 518 trivial. 0 not checked. [2021-12-14 22:41:48,991 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 22:41:50,011 INFO L134 CoverageAnalysis]: Checked inductivity of 725 backedges. 144 proven. 122 refuted. 0 times theorem prover too weak. 459 trivial. 0 not checked. [2021-12-14 22:41:50,012 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1125224392] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 22:41:50,012 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 22:41:50,012 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 17] total 26 [2021-12-14 22:41:50,012 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640088271] [2021-12-14 22:41:50,012 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 22:41:50,013 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-12-14 22:41:50,013 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:41:50,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-12-14 22:41:50,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=168, Invalid=534, Unknown=0, NotChecked=0, Total=702 [2021-12-14 22:41:50,014 INFO L87 Difference]: Start difference. First operand 83 states and 97 transitions. Second operand has 27 states, 26 states have (on average 2.6538461538461537) internal successors, (69), 27 states have internal predecessors, (69), 7 states have call successors, (8), 1 states have call predecessors, (8), 7 states have return successors, (18), 18 states have call predecessors, (18), 7 states have call successors, (18) [2021-12-14 22:41:50,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:41:50,130 INFO L93 Difference]: Finished difference Result 114 states and 145 transitions. [2021-12-14 22:41:50,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-12-14 22:41:50,130 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 2.6538461538461537) internal successors, (69), 27 states have internal predecessors, (69), 7 states have call successors, (8), 1 states have call predecessors, (8), 7 states have return successors, (18), 18 states have call predecessors, (18), 7 states have call successors, (18) Word has length 149 [2021-12-14 22:41:50,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:41:50,133 INFO L225 Difference]: With dead ends: 114 [2021-12-14 22:41:50,133 INFO L226 Difference]: Without dead ends: 113 [2021-12-14 22:41:50,134 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 356 GetRequests, 328 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 329 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=200, Invalid=670, Unknown=0, NotChecked=0, Total=870 [2021-12-14 22:41:50,135 INFO L933 BasicCegarLoop]: 28 mSDtfsCounter, 35 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-14 22:41:50,135 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 173 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-14 22:41:50,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2021-12-14 22:41:50,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 103. [2021-12-14 22:41:50,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 82 states have (on average 1.0365853658536586) internal successors, (85), 80 states have internal predecessors, (85), 12 states have call successors, (12), 8 states have call predecessors, (12), 8 states have return successors, (34), 14 states have call predecessors, (34), 11 states have call successors, (34) [2021-12-14 22:41:50,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 131 transitions. [2021-12-14 22:41:50,146 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 131 transitions. Word has length 149 [2021-12-14 22:41:50,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:41:50,146 INFO L470 AbstractCegarLoop]: Abstraction has 103 states and 131 transitions. [2021-12-14 22:41:50,146 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 2.6538461538461537) internal successors, (69), 27 states have internal predecessors, (69), 7 states have call successors, (8), 1 states have call predecessors, (8), 7 states have return successors, (18), 18 states have call predecessors, (18), 7 states have call successors, (18) [2021-12-14 22:41:50,147 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 131 transitions. [2021-12-14 22:41:50,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2021-12-14 22:41:50,151 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:41:50,151 INFO L514 BasicCegarLoop]: trace histogram [32, 30, 26, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 14, 14, 10, 6, 1, 1, 1, 1, 1] [2021-12-14 22:41:50,179 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-12-14 22:41:50,367 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-12-14 22:41:50,367 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-14 22:41:50,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:41:50,368 INFO L85 PathProgramCache]: Analyzing trace with hash -1985047649, now seen corresponding path program 7 times [2021-12-14 22:41:50,368 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:41:50,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471674700] [2021-12-14 22:41:50,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:41:50,368 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:41:50,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:50,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-14 22:41:50,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:50,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:50,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:50,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:50,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:50,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:50,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:50,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:50,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:50,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:41:50,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:50,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:41:50,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:50,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 22:41:50,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:50,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:50,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:50,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:41:50,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:50,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-14 22:41:50,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:50,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:50,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:50,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:50,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:50,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:41:50,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:50,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:41:50,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:50,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-14 22:41:50,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:50,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:50,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:50,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:50,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:50,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:50,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:50,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:50,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:50,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:41:50,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:50,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:41:50,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:50,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 22:41:50,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:50,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:50,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:50,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:41:50,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:50,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-14 22:41:50,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:50,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:50,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:50,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:50,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:50,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:41:50,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:50,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:41:50,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:50,724 INFO L134 CoverageAnalysis]: Checked inductivity of 3268 backedges. 534 proven. 998 refuted. 0 times theorem prover too weak. 1736 trivial. 0 not checked. [2021-12-14 22:41:50,725 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:41:50,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471674700] [2021-12-14 22:41:50,725 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471674700] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 22:41:50,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1468241309] [2021-12-14 22:41:50,725 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-12-14 22:41:50,725 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:41:50,725 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 22:41:50,726 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 22:41:50,727 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-12-14 22:41:50,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:50,840 INFO L263 TraceCheckSpWp]: Trace formula consists of 590 conjuncts, 22 conjunts are in the unsatisfiable core [2021-12-14 22:41:50,844 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 22:41:51,359 INFO L134 CoverageAnalysis]: Checked inductivity of 3268 backedges. 599 proven. 1181 refuted. 0 times theorem prover too weak. 1488 trivial. 0 not checked. [2021-12-14 22:41:51,360 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 22:41:53,023 INFO L134 CoverageAnalysis]: Checked inductivity of 3268 backedges. 599 proven. 1253 refuted. 0 times theorem prover too weak. 1416 trivial. 0 not checked. [2021-12-14 22:41:53,023 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1468241309] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 22:41:53,023 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 22:41:53,023 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 15, 23] total 33 [2021-12-14 22:41:53,024 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661042573] [2021-12-14 22:41:53,024 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 22:41:53,024 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2021-12-14 22:41:53,024 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:41:53,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-12-14 22:41:53,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=257, Invalid=799, Unknown=0, NotChecked=0, Total=1056 [2021-12-14 22:41:53,025 INFO L87 Difference]: Start difference. First operand 103 states and 131 transitions. Second operand has 33 states, 33 states have (on average 5.121212121212121) internal successors, (169), 33 states have internal predecessors, (169), 27 states have call successors, (31), 1 states have call predecessors, (31), 11 states have return successors, (42), 18 states have call predecessors, (42), 27 states have call successors, (42) [2021-12-14 22:41:53,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:41:53,470 INFO L93 Difference]: Finished difference Result 239 states and 328 transitions. [2021-12-14 22:41:53,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-12-14 22:41:53,471 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 5.121212121212121) internal successors, (169), 33 states have internal predecessors, (169), 27 states have call successors, (31), 1 states have call predecessors, (31), 11 states have return successors, (42), 18 states have call predecessors, (42), 27 states have call successors, (42) Word has length 306 [2021-12-14 22:41:53,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:41:53,479 INFO L225 Difference]: With dead ends: 239 [2021-12-14 22:41:53,479 INFO L226 Difference]: Without dead ends: 142 [2021-12-14 22:41:53,480 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 707 GetRequests, 657 SyntacticMatches, 2 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 694 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=646, Invalid=1804, Unknown=0, NotChecked=0, Total=2450 [2021-12-14 22:41:53,481 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 444 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 286 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 448 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 286 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-14 22:41:53,481 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [448 Valid, 155 Invalid, 620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [286 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-14 22:41:53,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2021-12-14 22:41:53,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 129. [2021-12-14 22:41:53,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 104 states have (on average 1.0480769230769231) internal successors, (109), 100 states have internal predecessors, (109), 15 states have call successors, (15), 11 states have call predecessors, (15), 9 states have return successors, (37), 17 states have call predecessors, (37), 14 states have call successors, (37) [2021-12-14 22:41:53,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 161 transitions. [2021-12-14 22:41:53,489 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 161 transitions. Word has length 306 [2021-12-14 22:41:53,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:41:53,489 INFO L470 AbstractCegarLoop]: Abstraction has 129 states and 161 transitions. [2021-12-14 22:41:53,490 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 5.121212121212121) internal successors, (169), 33 states have internal predecessors, (169), 27 states have call successors, (31), 1 states have call predecessors, (31), 11 states have return successors, (42), 18 states have call predecessors, (42), 27 states have call successors, (42) [2021-12-14 22:41:53,490 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 161 transitions. [2021-12-14 22:41:53,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2021-12-14 22:41:53,494 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:41:53,494 INFO L514 BasicCegarLoop]: trace histogram [32, 30, 26, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 14, 14, 10, 6, 1, 1, 1, 1, 1] [2021-12-14 22:41:53,520 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-12-14 22:41:53,703 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-12-14 22:41:53,703 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-14 22:41:53,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:41:53,703 INFO L85 PathProgramCache]: Analyzing trace with hash -448813433, now seen corresponding path program 8 times [2021-12-14 22:41:53,704 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:41:53,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840281323] [2021-12-14 22:41:53,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:41:53,704 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:41:53,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:53,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-14 22:41:53,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:53,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:53,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:53,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:53,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:53,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:53,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:53,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:53,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:53,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:53,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:53,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:41:53,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:53,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:41:53,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:53,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 22:41:53,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:53,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:53,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:53,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:41:53,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:53,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-14 22:41:53,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:53,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:53,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:53,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:53,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:53,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:41:53,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:53,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:41:53,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:53,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-14 22:41:53,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:53,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:53,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:53,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:53,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:53,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:41:53,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:53,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:41:54,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:54,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-12-14 22:41:54,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:54,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:54,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:54,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:54,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:54,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:54,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:54,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:41:54,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:54,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:41:54,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:54,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 22:41:54,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:54,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:54,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:54,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:41:54,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:54,035 INFO L134 CoverageAnalysis]: Checked inductivity of 3268 backedges. 609 proven. 736 refuted. 0 times theorem prover too weak. 1923 trivial. 0 not checked. [2021-12-14 22:41:54,036 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:41:54,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840281323] [2021-12-14 22:41:54,036 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840281323] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 22:41:54,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [825607612] [2021-12-14 22:41:54,036 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-14 22:41:54,036 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:41:54,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 22:41:54,037 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 22:41:54,059 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-12-14 22:41:54,176 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-14 22:41:54,177 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-14 22:41:54,179 INFO L263 TraceCheckSpWp]: Trace formula consists of 590 conjuncts, 18 conjunts are in the unsatisfiable core [2021-12-14 22:41:54,182 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 22:41:54,631 INFO L134 CoverageAnalysis]: Checked inductivity of 3268 backedges. 1849 proven. 484 refuted. 0 times theorem prover too weak. 935 trivial. 0 not checked. [2021-12-14 22:41:54,632 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 22:41:56,091 INFO L134 CoverageAnalysis]: Checked inductivity of 3268 backedges. 538 proven. 1101 refuted. 0 times theorem prover too weak. 1629 trivial. 0 not checked. [2021-12-14 22:41:56,092 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [825607612] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 22:41:56,092 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 22:41:56,092 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13, 19] total 27 [2021-12-14 22:41:56,093 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620660842] [2021-12-14 22:41:56,093 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 22:41:56,093 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-12-14 22:41:56,094 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:41:56,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-12-14 22:41:56,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=176, Invalid=526, Unknown=0, NotChecked=0, Total=702 [2021-12-14 22:41:56,095 INFO L87 Difference]: Start difference. First operand 129 states and 161 transitions. Second operand has 27 states, 27 states have (on average 5.62962962962963) internal successors, (152), 27 states have internal predecessors, (152), 22 states have call successors, (28), 2 states have call predecessors, (28), 10 states have return successors, (36), 14 states have call predecessors, (36), 22 states have call successors, (36) [2021-12-14 22:41:56,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:41:56,412 INFO L93 Difference]: Finished difference Result 241 states and 314 transitions. [2021-12-14 22:41:56,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-12-14 22:41:56,413 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 5.62962962962963) internal successors, (152), 27 states have internal predecessors, (152), 22 states have call successors, (28), 2 states have call predecessors, (28), 10 states have return successors, (36), 14 states have call predecessors, (36), 22 states have call successors, (36) Word has length 306 [2021-12-14 22:41:56,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:41:56,414 INFO L225 Difference]: With dead ends: 241 [2021-12-14 22:41:56,414 INFO L226 Difference]: Without dead ends: 118 [2021-12-14 22:41:56,416 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 694 GetRequests, 659 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 314 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=332, Invalid=858, Unknown=0, NotChecked=0, Total=1190 [2021-12-14 22:41:56,416 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 269 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 162 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 162 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-14 22:41:56,416 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [270 Valid, 179 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [162 Valid, 394 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-14 22:41:56,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2021-12-14 22:41:56,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 106. [2021-12-14 22:41:56,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 85 states have (on average 1.035294117647059) internal successors, (88), 83 states have internal predecessors, (88), 13 states have call successors, (13), 10 states have call predecessors, (13), 7 states have return successors, (26), 12 states have call predecessors, (26), 12 states have call successors, (26) [2021-12-14 22:41:56,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 127 transitions. [2021-12-14 22:41:56,423 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 127 transitions. Word has length 306 [2021-12-14 22:41:56,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:41:56,425 INFO L470 AbstractCegarLoop]: Abstraction has 106 states and 127 transitions. [2021-12-14 22:41:56,426 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 5.62962962962963) internal successors, (152), 27 states have internal predecessors, (152), 22 states have call successors, (28), 2 states have call predecessors, (28), 10 states have return successors, (36), 14 states have call predecessors, (36), 22 states have call successors, (36) [2021-12-14 22:41:56,426 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 127 transitions. [2021-12-14 22:41:56,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2021-12-14 22:41:56,430 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:41:56,430 INFO L514 BasicCegarLoop]: trace histogram [36, 34, 29, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 17, 16, 16, 11, 7, 1, 1, 1, 1, 1] [2021-12-14 22:41:56,457 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2021-12-14 22:41:56,643 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-12-14 22:41:56,643 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-14 22:41:56,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:41:56,644 INFO L85 PathProgramCache]: Analyzing trace with hash -101090713, now seen corresponding path program 9 times [2021-12-14 22:41:56,644 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:41:56,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187803105] [2021-12-14 22:41:56,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:41:56,644 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:41:56,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:56,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-14 22:41:56,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:56,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:56,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:56,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:56,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:56,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:56,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:56,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:56,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:56,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:56,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:56,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:41:56,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:56,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:41:56,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:56,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 22:41:56,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:56,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:56,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:56,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:41:56,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:56,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-14 22:41:56,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:56,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:56,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:56,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:56,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:56,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:41:56,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:56,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:41:56,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:56,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-14 22:41:56,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:56,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:56,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:56,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:56,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:56,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:56,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:56,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:41:56,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:56,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:41:56,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:56,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 22:41:56,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:56,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:56,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:56,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:41:56,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:56,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2021-12-14 22:41:56,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:56,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:56,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:56,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:56,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:57,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:57,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:57,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:41:57,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:57,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:41:57,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:57,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 22:41:57,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:57,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:57,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:57,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:41:57,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:57,056 INFO L134 CoverageAnalysis]: Checked inductivity of 4183 backedges. 988 proven. 816 refuted. 0 times theorem prover too weak. 2379 trivial. 0 not checked. [2021-12-14 22:41:57,056 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:41:57,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187803105] [2021-12-14 22:41:57,056 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187803105] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 22:41:57,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1953197778] [2021-12-14 22:41:57,056 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-14 22:41:57,057 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:41:57,057 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 22:41:57,059 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 22:41:57,061 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-12-14 22:41:57,204 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2021-12-14 22:41:57,204 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-14 22:41:57,206 INFO L263 TraceCheckSpWp]: Trace formula consists of 399 conjuncts, 16 conjunts are in the unsatisfiable core [2021-12-14 22:41:57,210 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 22:41:57,669 INFO L134 CoverageAnalysis]: Checked inductivity of 4183 backedges. 1125 proven. 412 refuted. 0 times theorem prover too weak. 2646 trivial. 0 not checked. [2021-12-14 22:41:57,670 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 22:41:58,824 INFO L134 CoverageAnalysis]: Checked inductivity of 4183 backedges. 1125 proven. 448 refuted. 0 times theorem prover too weak. 2610 trivial. 0 not checked. [2021-12-14 22:41:58,824 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1953197778] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 22:41:58,824 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 22:41:58,825 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 12, 17] total 30 [2021-12-14 22:41:58,825 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882527945] [2021-12-14 22:41:58,825 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 22:41:58,826 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-12-14 22:41:58,826 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:41:58,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-12-14 22:41:58,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=215, Invalid=655, Unknown=0, NotChecked=0, Total=870 [2021-12-14 22:41:58,827 INFO L87 Difference]: Start difference. First operand 106 states and 127 transitions. Second operand has 30 states, 30 states have (on average 4.9) internal successors, (147), 30 states have internal predecessors, (147), 17 states have call successors, (27), 1 states have call predecessors, (27), 11 states have return successors, (35), 23 states have call predecessors, (35), 17 states have call successors, (35) [2021-12-14 22:41:59,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:41:59,184 INFO L93 Difference]: Finished difference Result 227 states and 277 transitions. [2021-12-14 22:41:59,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-12-14 22:41:59,185 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 4.9) internal successors, (147), 30 states have internal predecessors, (147), 17 states have call successors, (27), 1 states have call predecessors, (27), 11 states have return successors, (35), 23 states have call predecessors, (35), 17 states have call successors, (35) Word has length 345 [2021-12-14 22:41:59,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:41:59,186 INFO L225 Difference]: With dead ends: 227 [2021-12-14 22:41:59,186 INFO L226 Difference]: Without dead ends: 127 [2021-12-14 22:41:59,187 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 787 GetRequests, 744 SyntacticMatches, 3 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 513 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=448, Invalid=1274, Unknown=0, NotChecked=0, Total=1722 [2021-12-14 22:41:59,187 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 166 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 504 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-14 22:41:59,187 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [168 Valid, 208 Invalid, 605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 504 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-14 22:41:59,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2021-12-14 22:41:59,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 106. [2021-12-14 22:41:59,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 85 states have (on average 1.035294117647059) internal successors, (88), 83 states have internal predecessors, (88), 13 states have call successors, (13), 10 states have call predecessors, (13), 7 states have return successors, (23), 12 states have call predecessors, (23), 12 states have call successors, (23) [2021-12-14 22:41:59,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 124 transitions. [2021-12-14 22:41:59,193 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 124 transitions. Word has length 345 [2021-12-14 22:41:59,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:41:59,194 INFO L470 AbstractCegarLoop]: Abstraction has 106 states and 124 transitions. [2021-12-14 22:41:59,194 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 4.9) internal successors, (147), 30 states have internal predecessors, (147), 17 states have call successors, (27), 1 states have call predecessors, (27), 11 states have return successors, (35), 23 states have call predecessors, (35), 17 states have call successors, (35) [2021-12-14 22:41:59,194 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 124 transitions. [2021-12-14 22:41:59,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 497 [2021-12-14 22:41:59,197 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:41:59,197 INFO L514 BasicCegarLoop]: trace histogram [51, 50, 41, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 24, 24, 16, 10, 1, 1, 1, 1, 1] [2021-12-14 22:41:59,219 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-12-14 22:41:59,411 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:41:59,411 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-14 22:41:59,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:41:59,412 INFO L85 PathProgramCache]: Analyzing trace with hash -561951835, now seen corresponding path program 10 times [2021-12-14 22:41:59,412 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:41:59,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934854385] [2021-12-14 22:41:59,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:41:59,412 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:41:59,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:59,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-14 22:41:59,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:59,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:59,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:59,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:59,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:59,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:59,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:59,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:59,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:59,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:59,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:59,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:41:59,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:59,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:41:59,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:59,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 22:41:59,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:59,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:59,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:59,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:41:59,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:59,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-14 22:41:59,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:59,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:59,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:59,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:59,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:59,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:41:59,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:59,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:41:59,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:59,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-14 22:41:59,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:59,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:59,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:59,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:59,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:59,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:59,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:59,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:41:59,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:59,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:41:59,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:59,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 22:41:59,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:59,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:59,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:59,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:41:59,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:59,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2021-12-14 22:41:59,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:59,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:59,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:59,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:59,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:59,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:59,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:59,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:59,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:59,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:59,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:59,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:41:59,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:59,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:41:59,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:59,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 22:41:59,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:59,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:59,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:59,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:41:59,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:59,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-14 22:41:59,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:59,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:59,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:59,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:59,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:59,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:41:59,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:59,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:41:59,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:59,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-14 22:41:59,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:59,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:59,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:59,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:59,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:59,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:59,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:59,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:41:59,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:59,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:41:59,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:59,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 22:41:59,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:59,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:41:59,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:59,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:41:59,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:00,002 INFO L134 CoverageAnalysis]: Checked inductivity of 8796 backedges. 1094 proven. 2322 refuted. 0 times theorem prover too weak. 5380 trivial. 0 not checked. [2021-12-14 22:42:00,002 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:42:00,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934854385] [2021-12-14 22:42:00,003 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934854385] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 22:42:00,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [302784718] [2021-12-14 22:42:00,003 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-12-14 22:42:00,003 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:42:00,003 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 22:42:00,008 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 22:42:00,016 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-12-14 22:42:00,171 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-12-14 22:42:00,172 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-14 22:42:00,174 INFO L263 TraceCheckSpWp]: Trace formula consists of 618 conjuncts, 26 conjunts are in the unsatisfiable core [2021-12-14 22:42:00,180 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 22:42:00,834 INFO L134 CoverageAnalysis]: Checked inductivity of 8796 backedges. 1252 proven. 2649 refuted. 0 times theorem prover too weak. 4895 trivial. 0 not checked. [2021-12-14 22:42:00,835 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 22:42:03,191 INFO L134 CoverageAnalysis]: Checked inductivity of 8796 backedges. 1252 proven. 2764 refuted. 0 times theorem prover too weak. 4780 trivial. 0 not checked. [2021-12-14 22:42:03,191 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [302784718] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 22:42:03,191 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 22:42:03,192 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 17, 27] total 39 [2021-12-14 22:42:03,192 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711145966] [2021-12-14 22:42:03,192 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 22:42:03,193 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2021-12-14 22:42:03,193 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:42:03,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2021-12-14 22:42:03,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=358, Invalid=1124, Unknown=0, NotChecked=0, Total=1482 [2021-12-14 22:42:03,194 INFO L87 Difference]: Start difference. First operand 106 states and 124 transitions. Second operand has 39 states, 39 states have (on average 5.102564102564102) internal successors, (199), 39 states have internal predecessors, (199), 33 states have call successors, (37), 1 states have call predecessors, (37), 13 states have return successors, (52), 22 states have call predecessors, (52), 33 states have call successors, (52) [2021-12-14 22:42:03,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:42:03,755 INFO L93 Difference]: Finished difference Result 246 states and 314 transitions. [2021-12-14 22:42:03,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-12-14 22:42:03,760 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 5.102564102564102) internal successors, (199), 39 states have internal predecessors, (199), 33 states have call successors, (37), 1 states have call predecessors, (37), 13 states have return successors, (52), 22 states have call predecessors, (52), 33 states have call successors, (52) Word has length 496 [2021-12-14 22:42:03,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:42:03,771 INFO L225 Difference]: With dead ends: 246 [2021-12-14 22:42:03,771 INFO L226 Difference]: Without dead ends: 146 [2021-12-14 22:42:03,772 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1135 GetRequests, 1074 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1085 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=931, Invalid=2729, Unknown=0, NotChecked=0, Total=3660 [2021-12-14 22:42:03,773 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 424 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 549 mSolverCounterSat, 263 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 427 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 812 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 263 IncrementalHoareTripleChecker+Valid, 549 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-14 22:42:03,773 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [427 Valid, 246 Invalid, 812 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [263 Valid, 549 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-14 22:42:03,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2021-12-14 22:42:03,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 134. [2021-12-14 22:42:03,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 108 states have (on average 1.037037037037037) internal successors, (112), 106 states have internal predecessors, (112), 17 states have call successors, (17), 14 states have call predecessors, (17), 8 states have return successors, (31), 13 states have call predecessors, (31), 16 states have call successors, (31) [2021-12-14 22:42:03,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 160 transitions. [2021-12-14 22:42:03,791 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 160 transitions. Word has length 496 [2021-12-14 22:42:03,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:42:03,792 INFO L470 AbstractCegarLoop]: Abstraction has 134 states and 160 transitions. [2021-12-14 22:42:03,792 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 5.102564102564102) internal successors, (199), 39 states have internal predecessors, (199), 33 states have call successors, (37), 1 states have call predecessors, (37), 13 states have return successors, (52), 22 states have call predecessors, (52), 33 states have call successors, (52) [2021-12-14 22:42:03,792 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 160 transitions. [2021-12-14 22:42:03,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 399 [2021-12-14 22:42:03,794 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:42:03,794 INFO L514 BasicCegarLoop]: trace histogram [41, 40, 33, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 13, 8, 1, 1, 1, 1, 1] [2021-12-14 22:42:03,819 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2021-12-14 22:42:04,018 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:42:04,019 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-14 22:42:04,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:42:04,019 INFO L85 PathProgramCache]: Analyzing trace with hash -1618302324, now seen corresponding path program 11 times [2021-12-14 22:42:04,019 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:42:04,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782840157] [2021-12-14 22:42:04,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:42:04,020 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:42:04,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:04,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-14 22:42:04,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:04,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:04,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:04,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:04,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:04,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:04,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:04,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:04,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:04,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:04,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:04,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:42:04,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:04,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:42:04,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:04,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 22:42:04,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:04,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:04,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:04,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:42:04,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:04,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-14 22:42:04,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:04,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:04,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:04,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:04,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:04,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:42:04,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:04,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:42:04,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:04,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-14 22:42:04,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:04,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:04,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:04,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:04,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:04,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:04,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:04,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:42:04,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:04,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:42:04,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:04,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 22:42:04,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:04,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:04,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:04,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:42:04,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:04,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2021-12-14 22:42:04,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:04,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:04,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:04,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:04,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:04,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:04,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:04,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:04,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:04,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:42:04,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:04,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:42:04,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:04,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 22:42:04,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:04,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:04,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:04,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:42:04,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:04,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-14 22:42:04,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:04,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:04,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:04,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:04,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:04,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:42:04,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:04,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:42:04,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:04,576 INFO L134 CoverageAnalysis]: Checked inductivity of 5609 backedges. 820 proven. 1093 refuted. 0 times theorem prover too weak. 3696 trivial. 0 not checked. [2021-12-14 22:42:04,576 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:42:04,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782840157] [2021-12-14 22:42:04,577 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782840157] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 22:42:04,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [279575288] [2021-12-14 22:42:04,577 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-12-14 22:42:04,577 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:42:04,577 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 22:42:04,580 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 22:42:04,604 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-12-14 22:42:04,805 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 29 check-sat command(s) [2021-12-14 22:42:04,805 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-14 22:42:04,809 INFO L263 TraceCheckSpWp]: Trace formula consists of 761 conjuncts, 81 conjunts are in the unsatisfiable core [2021-12-14 22:42:04,813 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 22:42:05,599 INFO L134 CoverageAnalysis]: Checked inductivity of 5609 backedges. 820 proven. 1093 refuted. 0 times theorem prover too weak. 3696 trivial. 0 not checked. [2021-12-14 22:42:05,599 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 22:42:10,595 INFO L134 CoverageAnalysis]: Checked inductivity of 5609 backedges. 1149 proven. 996 refuted. 0 times theorem prover too weak. 3464 trivial. 0 not checked. [2021-12-14 22:42:10,596 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [279575288] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 22:42:10,596 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 22:42:10,596 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 29] total 40 [2021-12-14 22:42:10,596 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268920912] [2021-12-14 22:42:10,596 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 22:42:10,597 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2021-12-14 22:42:10,598 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:42:10,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-12-14 22:42:10,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=367, Invalid=1273, Unknown=0, NotChecked=0, Total=1640 [2021-12-14 22:42:10,605 INFO L87 Difference]: Start difference. First operand 134 states and 160 transitions. Second operand has 41 states, 40 states have (on average 2.575) internal successors, (103), 41 states have internal predecessors, (103), 11 states have call successors, (12), 1 states have call predecessors, (12), 11 states have return successors, (28), 28 states have call predecessors, (28), 11 states have call successors, (28) [2021-12-14 22:42:11,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:42:11,064 INFO L93 Difference]: Finished difference Result 165 states and 210 transitions. [2021-12-14 22:42:11,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-12-14 22:42:11,065 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 40 states have (on average 2.575) internal successors, (103), 41 states have internal predecessors, (103), 11 states have call successors, (12), 1 states have call predecessors, (12), 11 states have return successors, (28), 28 states have call predecessors, (28), 11 states have call successors, (28) Word has length 398 [2021-12-14 22:42:11,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:42:11,067 INFO L225 Difference]: With dead ends: 165 [2021-12-14 22:42:11,067 INFO L226 Difference]: Without dead ends: 164 [2021-12-14 22:42:11,069 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 958 GetRequests, 916 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 844 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=409, Invalid=1483, Unknown=0, NotChecked=0, Total=1892 [2021-12-14 22:42:11,070 INFO L933 BasicCegarLoop]: 32 mSDtfsCounter, 47 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-14 22:42:11,070 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [56 Valid, 277 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-14 22:42:11,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2021-12-14 22:42:11,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 154. [2021-12-14 22:42:11,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 124 states have (on average 1.032258064516129) internal successors, (128), 121 states have internal predecessors, (128), 19 states have call successors, (19), 14 states have call predecessors, (19), 10 states have return successors, (49), 18 states have call predecessors, (49), 18 states have call successors, (49) [2021-12-14 22:42:11,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 196 transitions. [2021-12-14 22:42:11,083 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 196 transitions. Word has length 398 [2021-12-14 22:42:11,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:42:11,084 INFO L470 AbstractCegarLoop]: Abstraction has 154 states and 196 transitions. [2021-12-14 22:42:11,084 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 40 states have (on average 2.575) internal successors, (103), 41 states have internal predecessors, (103), 11 states have call successors, (12), 1 states have call predecessors, (12), 11 states have return successors, (28), 28 states have call predecessors, (28), 11 states have call successors, (28) [2021-12-14 22:42:11,084 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 196 transitions. [2021-12-14 22:42:11,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1224 [2021-12-14 22:42:11,103 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:42:11,104 INFO L514 BasicCegarLoop]: trace histogram [126, 123, 102, 63, 63, 63, 63, 62, 62, 62, 62, 62, 61, 61, 60, 60, 39, 24, 1, 1, 1, 1, 1] [2021-12-14 22:42:11,197 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-12-14 22:42:11,315 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:42:11,316 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-14 22:42:11,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:42:11,316 INFO L85 PathProgramCache]: Analyzing trace with hash 860846964, now seen corresponding path program 12 times [2021-12-14 22:42:11,316 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:42:11,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983649941] [2021-12-14 22:42:11,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:42:11,317 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:42:11,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:11,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-14 22:42:11,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:11,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:11,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:11,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:11,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:12,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:12,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:12,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:12,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:42:12,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:42:12,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 22:42:12,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:12,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:42:12,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-14 22:42:12,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:12,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:12,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:42:12,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:42:12,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-14 22:42:12,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:12,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:12,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:12,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:42:12,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:42:12,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 22:42:12,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:12,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:42:12,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2021-12-14 22:42:12,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:12,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:12,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:12,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:12,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:42:12,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:42:12,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 22:42:12,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:12,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:42:12,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-14 22:42:12,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:12,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:12,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:42:12,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:42:12,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 422 [2021-12-14 22:42:12,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:12,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:12,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:12,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:12,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:12,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:12,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:42:12,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:42:12,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 22:42:12,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:12,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:42:12,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-14 22:42:12,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:12,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:12,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:42:12,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:42:12,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-14 22:42:12,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:12,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:12,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:12,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:42:12,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:42:12,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 22:42:12,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:12,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:42:12,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2021-12-14 22:42:12,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:12,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:12,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:12,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:12,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:42:12,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:42:12,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 22:42:12,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:12,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:42:12,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-14 22:42:12,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:12,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:12,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:42:12,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:42:12,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 823 [2021-12-14 22:42:12,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:12,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:12,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:12,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:12,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:12,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:12,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:42:12,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:42:12,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 22:42:12,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:12,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:42:12,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-14 22:42:12,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:12,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:12,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:42:12,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:42:12,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-14 22:42:12,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:12,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:12,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:12,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:42:12,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:42:12,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 22:42:12,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:12,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:42:12,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2021-12-14 22:42:12,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:12,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:12,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:12,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:12,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:42:12,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:42:12,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 22:42:12,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:12,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:42:12,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-14 22:42:12,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:12,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:12,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:42:12,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:42:12,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:12,982 INFO L134 CoverageAnalysis]: Checked inductivity of 54760 backedges. 2670 proven. 9180 refuted. 0 times theorem prover too weak. 42910 trivial. 0 not checked. [2021-12-14 22:42:12,982 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:42:12,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983649941] [2021-12-14 22:42:12,982 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983649941] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 22:42:12,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1342699476] [2021-12-14 22:42:12,983 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-12-14 22:42:12,983 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:42:12,983 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 22:42:12,984 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 22:42:12,986 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-12-14 22:42:13,577 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 62 check-sat command(s) [2021-12-14 22:42:13,577 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-14 22:42:13,581 INFO L263 TraceCheckSpWp]: Trace formula consists of 1489 conjuncts, 28 conjunts are in the unsatisfiable core [2021-12-14 22:42:13,592 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 22:42:15,046 INFO L134 CoverageAnalysis]: Checked inductivity of 54760 backedges. 27411 proven. 4518 refuted. 0 times theorem prover too weak. 22831 trivial. 0 not checked. [2021-12-14 22:42:15,047 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 22:42:18,431 INFO L134 CoverageAnalysis]: Checked inductivity of 54760 backedges. 3232 proven. 8826 refuted. 0 times theorem prover too weak. 42702 trivial. 0 not checked. [2021-12-14 22:42:18,431 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1342699476] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 22:42:18,432 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 22:42:18,432 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 19, 28] total 41 [2021-12-14 22:42:18,432 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325201547] [2021-12-14 22:42:18,432 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 22:42:18,434 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2021-12-14 22:42:18,434 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:42:18,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-12-14 22:42:18,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=383, Invalid=1257, Unknown=0, NotChecked=0, Total=1640 [2021-12-14 22:42:18,435 INFO L87 Difference]: Start difference. First operand 154 states and 196 transitions. Second operand has 41 states, 41 states have (on average 5.560975609756097) internal successors, (228), 41 states have internal predecessors, (228), 35 states have call successors, (44), 4 states have call predecessors, (44), 14 states have return successors, (57), 26 states have call predecessors, (57), 33 states have call successors, (57) [2021-12-14 22:42:19,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:42:19,092 INFO L93 Difference]: Finished difference Result 362 states and 504 transitions. [2021-12-14 22:42:19,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-12-14 22:42:19,093 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 41 states have (on average 5.560975609756097) internal successors, (228), 41 states have internal predecessors, (228), 35 states have call successors, (44), 4 states have call predecessors, (44), 14 states have return successors, (57), 26 states have call predecessors, (57), 33 states have call successors, (57) Word has length 1223 [2021-12-14 22:42:19,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:42:19,095 INFO L225 Difference]: With dead ends: 362 [2021-12-14 22:42:19,095 INFO L226 Difference]: Without dead ends: 214 [2021-12-14 22:42:19,098 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2750 GetRequests, 2679 SyntacticMatches, 2 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1419 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=1257, Invalid=3713, Unknown=0, NotChecked=0, Total=4970 [2021-12-14 22:42:19,099 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 557 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 526 mSolverCounterSat, 403 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 559 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 929 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 403 IncrementalHoareTripleChecker+Valid, 526 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-14 22:42:19,099 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [559 Valid, 223 Invalid, 929 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [403 Valid, 526 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-14 22:42:19,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2021-12-14 22:42:19,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 189. [2021-12-14 22:42:19,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 153 states have (on average 1.0392156862745099) internal successors, (159), 149 states have internal predecessors, (159), 24 states have call successors, (24), 18 states have call predecessors, (24), 11 states have return successors, (57), 21 states have call predecessors, (57), 23 states have call successors, (57) [2021-12-14 22:42:19,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 240 transitions. [2021-12-14 22:42:19,109 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 240 transitions. Word has length 1223 [2021-12-14 22:42:19,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:42:19,110 INFO L470 AbstractCegarLoop]: Abstraction has 189 states and 240 transitions. [2021-12-14 22:42:19,110 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 5.560975609756097) internal successors, (228), 41 states have internal predecessors, (228), 35 states have call successors, (44), 4 states have call predecessors, (44), 14 states have return successors, (57), 26 states have call predecessors, (57), 33 states have call successors, (57) [2021-12-14 22:42:19,111 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 240 transitions. [2021-12-14 22:42:19,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 811 [2021-12-14 22:42:19,127 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:42:19,127 INFO L514 BasicCegarLoop]: trace histogram [83, 82, 67, 41, 41, 41, 41, 41, 41, 41, 41, 41, 41, 41, 40, 40, 26, 16, 1, 1, 1, 1, 1] [2021-12-14 22:42:19,152 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-12-14 22:42:19,355 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2021-12-14 22:42:19,356 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-14 22:42:19,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:42:19,357 INFO L85 PathProgramCache]: Analyzing trace with hash -595948931, now seen corresponding path program 13 times [2021-12-14 22:42:19,357 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:42:19,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123359995] [2021-12-14 22:42:19,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:42:19,357 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:42:19,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:19,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-14 22:42:19,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:19,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:19,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:19,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:19,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:20,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:20,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:20,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:20,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:20,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:20,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:20,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:20,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:20,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:20,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:20,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:42:20,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:20,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:42:20,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:20,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 22:42:20,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:20,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:20,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:20,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:42:20,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:20,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-14 22:42:20,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:20,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:20,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:20,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:20,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:20,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:42:20,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:20,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:42:20,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:20,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-14 22:42:20,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:20,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:20,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:20,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:20,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:20,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:20,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:20,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:42:20,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:20,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:42:20,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:20,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 22:42:20,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:20,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:20,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:20,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:42:20,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:20,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2021-12-14 22:42:20,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:20,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:20,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:20,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:20,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:20,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:20,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:20,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:20,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:20,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:42:20,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:20,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:42:20,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:20,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 22:42:20,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:20,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:20,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:20,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:42:20,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:20,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-14 22:42:20,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:20,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:20,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:20,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:20,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:20,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:42:20,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:20,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:42:20,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:20,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 406 [2021-12-14 22:42:20,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:20,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:20,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:20,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:20,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:20,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:20,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:20,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:20,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:20,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:42:20,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:20,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:42:20,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:20,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 22:42:20,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:20,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:20,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:20,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:42:20,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:20,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-14 22:42:20,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:20,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:20,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:20,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:20,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:20,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:42:20,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:20,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:42:20,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:20,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 567 [2021-12-14 22:42:20,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:20,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:20,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:20,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:20,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:20,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:20,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:20,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:20,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:20,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:20,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:20,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:42:20,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:20,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:42:20,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:20,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 22:42:20,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:20,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:20,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:20,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:42:20,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:20,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-14 22:42:20,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:20,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:20,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:20,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:20,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:20,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:42:20,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:20,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:42:20,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:20,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-14 22:42:20,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:20,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:20,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:20,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:20,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:20,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:20,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:20,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:42:20,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:20,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:42:20,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:20,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 22:42:20,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:20,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:20,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:20,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:42:20,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:20,580 INFO L134 CoverageAnalysis]: Checked inductivity of 23819 backedges. 2337 proven. 4185 refuted. 0 times theorem prover too weak. 17297 trivial. 0 not checked. [2021-12-14 22:42:20,580 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:42:20,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123359995] [2021-12-14 22:42:20,581 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123359995] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 22:42:20,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1820119171] [2021-12-14 22:42:20,581 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-12-14 22:42:20,581 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:42:20,581 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 22:42:20,584 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 22:42:20,602 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-12-14 22:42:20,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:20,925 INFO L263 TraceCheckSpWp]: Trace formula consists of 1522 conjuncts, 26 conjunts are in the unsatisfiable core [2021-12-14 22:42:20,938 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 22:42:22,031 INFO L134 CoverageAnalysis]: Checked inductivity of 23819 backedges. 12183 proven. 2667 refuted. 0 times theorem prover too weak. 8969 trivial. 0 not checked. [2021-12-14 22:42:22,031 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 22:42:25,800 INFO L134 CoverageAnalysis]: Checked inductivity of 23819 backedges. 2207 proven. 5308 refuted. 0 times theorem prover too weak. 16304 trivial. 0 not checked. [2021-12-14 22:42:25,800 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1820119171] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 22:42:25,800 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 22:42:25,800 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 17, 27] total 39 [2021-12-14 22:42:25,801 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131389067] [2021-12-14 22:42:25,801 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 22:42:25,802 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2021-12-14 22:42:25,802 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:42:25,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2021-12-14 22:42:25,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=362, Invalid=1120, Unknown=0, NotChecked=0, Total=1482 [2021-12-14 22:42:25,803 INFO L87 Difference]: Start difference. First operand 189 states and 240 transitions. Second operand has 39 states, 39 states have (on average 5.435897435897436) internal successors, (212), 39 states have internal predecessors, (212), 34 states have call successors, (40), 2 states have call predecessors, (40), 14 states have return successors, (56), 22 states have call predecessors, (56), 34 states have call successors, (56) [2021-12-14 22:42:26,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:42:26,399 INFO L93 Difference]: Finished difference Result 379 states and 507 transitions. [2021-12-14 22:42:26,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-12-14 22:42:26,400 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 5.435897435897436) internal successors, (212), 39 states have internal predecessors, (212), 34 states have call successors, (40), 2 states have call predecessors, (40), 14 states have return successors, (56), 22 states have call predecessors, (56), 34 states have call successors, (56) Word has length 810 [2021-12-14 22:42:26,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:42:26,403 INFO L225 Difference]: With dead ends: 379 [2021-12-14 22:42:26,403 INFO L226 Difference]: Without dead ends: 196 [2021-12-14 22:42:26,405 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1818 GetRequests, 1767 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 796 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=662, Invalid=1888, Unknown=0, NotChecked=0, Total=2550 [2021-12-14 22:42:26,405 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 287 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 807 mSolverCounterSat, 288 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 1095 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 288 IncrementalHoareTripleChecker+Valid, 807 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-14 22:42:26,406 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [289 Valid, 317 Invalid, 1095 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [288 Valid, 807 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-14 22:42:26,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2021-12-14 22:42:26,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 148. [2021-12-14 22:42:26,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 119 states have (on average 1.0252100840336134) internal successors, (122), 117 states have internal predecessors, (122), 19 states have call successors, (19), 14 states have call predecessors, (19), 9 states have return successors, (45), 16 states have call predecessors, (45), 18 states have call successors, (45) [2021-12-14 22:42:26,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 186 transitions. [2021-12-14 22:42:26,417 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 186 transitions. Word has length 810 [2021-12-14 22:42:26,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:42:26,418 INFO L470 AbstractCegarLoop]: Abstraction has 148 states and 186 transitions. [2021-12-14 22:42:26,418 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 5.435897435897436) internal successors, (212), 39 states have internal predecessors, (212), 34 states have call successors, (40), 2 states have call predecessors, (40), 14 states have return successors, (56), 22 states have call predecessors, (56), 34 states have call successors, (56) [2021-12-14 22:42:26,419 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 186 transitions. [2021-12-14 22:42:26,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1595 [2021-12-14 22:42:26,434 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:42:26,434 INFO L514 BasicCegarLoop]: trace histogram [165, 159, 134, 84, 84, 84, 84, 80, 80, 80, 80, 80, 79, 79, 78, 78, 50, 31, 1, 1, 1, 1, 1] [2021-12-14 22:42:26,466 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2021-12-14 22:42:26,659 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:42:26,659 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-14 22:42:26,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:42:26,660 INFO L85 PathProgramCache]: Analyzing trace with hash -2034410672, now seen corresponding path program 14 times [2021-12-14 22:42:26,660 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:42:26,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755740109] [2021-12-14 22:42:26,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:42:26,660 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:42:26,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:27,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-14 22:42:27,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:27,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:27,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:27,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:27,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:27,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:27,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:27,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:27,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:27,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:27,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:27,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:27,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:27,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:27,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:27,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:42:27,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:27,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:42:27,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:27,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 22:42:27,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:27,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:27,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:27,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:42:27,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:27,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-14 22:42:27,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:27,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:27,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:27,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:27,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:27,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:42:27,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:27,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:42:27,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:27,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-14 22:42:27,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:27,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:27,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:27,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:27,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:27,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:27,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:27,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:42:27,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:27,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:42:27,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:27,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 22:42:27,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:27,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:27,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:27,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:42:27,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:27,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2021-12-14 22:42:27,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:27,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:27,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:27,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:27,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:27,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:27,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:27,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:27,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:27,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:42:27,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:27,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:42:27,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:27,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 22:42:27,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:27,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:27,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:27,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:42:27,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:27,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-14 22:42:27,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:27,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:27,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:27,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:27,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:27,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:42:27,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:27,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:42:27,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:27,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 406 [2021-12-14 22:42:27,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:27,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:27,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:27,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:27,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:27,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:27,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:27,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:27,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:27,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:27,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:27,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:42:27,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:27,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:42:27,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:27,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 22:42:27,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:27,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:27,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:27,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:42:27,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:27,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-14 22:42:27,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:27,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:27,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:27,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:27,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:27,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:42:27,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:27,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:42:27,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:27,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-14 22:42:27,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:27,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:27,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:27,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:27,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:27,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:27,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:27,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:42:27,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:27,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:42:27,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:27,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 22:42:27,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:27,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:27,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:27,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:42:27,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:27,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 695 [2021-12-14 22:42:28,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:28,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:28,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:28,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:28,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:28,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:28,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:28,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:28,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:28,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:28,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:28,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:28,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:28,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:28,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:28,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:42:28,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:28,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:42:28,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:28,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 22:42:28,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:28,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:28,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:28,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:42:28,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:28,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-14 22:42:28,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:28,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:28,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:28,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:28,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:28,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:42:28,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:28,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:42:28,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:28,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-14 22:42:28,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:28,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:28,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:28,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:28,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:28,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:28,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:28,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:42:28,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:28,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:42:28,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:28,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 22:42:28,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:28,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:28,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:28,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:42:28,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:28,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2021-12-14 22:42:28,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:28,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:28,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:28,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:28,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:28,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:28,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:28,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:28,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:28,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:42:28,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:28,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:42:28,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:28,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 22:42:28,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:28,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:28,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:28,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:42:28,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:28,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-14 22:42:28,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:28,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:28,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:28,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:28,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:28,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:42:28,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:28,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:42:28,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:28,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 406 [2021-12-14 22:42:28,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:28,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:28,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:28,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:28,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:28,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:28,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:28,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:28,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:28,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:28,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:28,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:42:28,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:28,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:42:28,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:28,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 22:42:28,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:28,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:28,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:28,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:42:28,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:28,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-14 22:42:28,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:28,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:28,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:28,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:28,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:28,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:42:28,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:28,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:42:28,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:28,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-14 22:42:28,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:28,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:28,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:28,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:28,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:28,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:28,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:28,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:42:28,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:28,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:42:28,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:28,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 22:42:28,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:28,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:28,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:28,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:42:28,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:28,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1351 [2021-12-14 22:42:28,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:28,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:28,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:28,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:28,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:28,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:28,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:28,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:28,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:28,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:28,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:28,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:42:28,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:28,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:42:28,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:28,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 22:42:28,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:28,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:28,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:28,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:42:28,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:28,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-14 22:42:28,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:28,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:28,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:28,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:28,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:28,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:42:28,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:28,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:42:28,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:28,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-14 22:42:28,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:28,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:28,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:28,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:28,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:28,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:28,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:28,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:42:28,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:28,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:42:28,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:28,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 22:42:28,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:28,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:42:28,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:28,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:42:28,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:42:28,589 INFO L134 CoverageAnalysis]: Checked inductivity of 93356 backedges. 3601 proven. 11733 refuted. 0 times theorem prover too weak. 78022 trivial. 0 not checked. [2021-12-14 22:42:28,590 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:42:28,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755740109] [2021-12-14 22:42:28,590 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755740109] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 22:42:28,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [694911302] [2021-12-14 22:42:28,590 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-14 22:42:28,590 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:42:28,591 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 22:42:28,592 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 22:42:28,593 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-12-14 22:42:29,090 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-14 22:42:29,091 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-14 22:42:29,100 INFO L263 TraceCheckSpWp]: Trace formula consists of 2966 conjuncts, 34 conjunts are in the unsatisfiable core [2021-12-14 22:42:29,116 INFO L286 TraceCheckSpWp]: Computing forward predicates...