./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-numeric/Fibonacci01-2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version ff03de63 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/termination-numeric/Fibonacci01-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-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 64bit --witnessprinter.graph.data.programhash 14cfbc3a2ba2bfe3a03d4d1ebff24b0baf1851f06dbbd2468b59e09322e4ce16 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 20:46:37,621 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 20:46:37,623 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 20:46:37,683 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 20:46:37,683 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 20:46:37,685 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 20:46:37,687 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 20:46:37,689 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 20:46:37,691 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 20:46:37,694 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 20:46:37,695 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 20:46:37,696 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 20:46:37,696 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 20:46:37,698 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 20:46:37,699 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 20:46:37,700 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 20:46:37,701 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 20:46:37,702 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 20:46:37,705 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 20:46:37,713 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 20:46:37,714 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 20:46:37,715 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 20:46:37,716 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 20:46:37,717 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 20:46:37,721 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 20:46:37,722 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 20:46:37,722 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 20:46:37,722 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 20:46:37,723 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 20:46:37,723 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 20:46:37,724 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 20:46:37,724 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 20:46:37,725 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 20:46:37,726 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 20:46:37,727 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 20:46:37,727 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 20:46:37,727 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 20:46:37,728 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 20:46:37,728 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 20:46:37,728 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 20:46:37,729 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 20:46:37,730 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2021-12-21 20:46:37,754 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 20:46:37,754 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 20:46:37,754 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 20:46:37,755 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 20:46:37,755 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 20:46:37,755 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 20:46:37,756 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 20:46:37,757 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 20:46:37,757 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 20:46:37,757 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 20:46:37,757 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-21 20:46:37,758 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 20:46:37,758 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 20:46:37,758 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 20:46:37,758 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 20:46:37,758 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 20:46:37,758 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-12-21 20:46:37,759 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 20:46:37,759 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 20:46:37,759 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 20:46:37,759 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 20:46:37,759 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 20:46:37,759 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 20:46:37,760 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 20:46:37,760 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 20:46:37,760 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 20:46:37,760 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 20:46:37,761 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 20:46:37,761 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-21 20:46:37,761 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 20:46:37,761 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 20:46:37,761 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 14cfbc3a2ba2bfe3a03d4d1ebff24b0baf1851f06dbbd2468b59e09322e4ce16 [2021-12-21 20:46:37,955 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 20:46:37,973 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 20:46:37,975 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 20:46:37,976 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 20:46:37,977 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 20:46:37,978 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-numeric/Fibonacci01-2.c [2021-12-21 20:46:38,041 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2595adac/09940cecddfb425e81bd8347d7a9b70c/FLAGb76f55029 [2021-12-21 20:46:38,376 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 20:46:38,377 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-numeric/Fibonacci01-2.c [2021-12-21 20:46:38,381 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2595adac/09940cecddfb425e81bd8347d7a9b70c/FLAGb76f55029 [2021-12-21 20:46:38,818 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2595adac/09940cecddfb425e81bd8347d7a9b70c [2021-12-21 20:46:38,820 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 20:46:38,822 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 20:46:38,825 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 20:46:38,825 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 20:46:38,827 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 20:46:38,828 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 08:46:38" (1/1) ... [2021-12-21 20:46:38,829 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f4be5c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:46:38, skipping insertion in model container [2021-12-21 20:46:38,829 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 08:46:38" (1/1) ... [2021-12-21 20:46:38,834 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 20:46:38,843 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 20:46:38,974 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/termination-numeric/Fibonacci01-2.c[761,774] [2021-12-21 20:46:38,974 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 20:46:38,983 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 20:46:38,996 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/termination-numeric/Fibonacci01-2.c[761,774] [2021-12-21 20:46:38,997 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 20:46:39,008 INFO L208 MainTranslator]: Completed translation [2021-12-21 20:46:39,009 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:46:39 WrapperNode [2021-12-21 20:46:39,009 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 20:46:39,010 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 20:46:39,011 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 20:46:39,011 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 20:46:39,016 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:46:39" (1/1) ... [2021-12-21 20:46:39,021 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:46:39" (1/1) ... [2021-12-21 20:46:39,033 INFO L137 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 26 [2021-12-21 20:46:39,034 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 20:46:39,035 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 20:46:39,035 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 20:46:39,035 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 20:46:39,040 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:46:39" (1/1) ... [2021-12-21 20:46:39,040 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:46:39" (1/1) ... [2021-12-21 20:46:39,048 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:46:39" (1/1) ... [2021-12-21 20:46:39,048 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:46:39" (1/1) ... [2021-12-21 20:46:39,053 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:46:39" (1/1) ... [2021-12-21 20:46:39,056 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:46:39" (1/1) ... [2021-12-21 20:46:39,057 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:46:39" (1/1) ... [2021-12-21 20:46:39,061 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 20:46:39,062 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 20:46:39,062 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 20:46:39,063 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 20:46:39,063 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:46:39" (1/1) ... [2021-12-21 20:46:39,069 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 20:46:39,076 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 20:46:39,086 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) [2021-12-21 20:46:39,103 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 [2021-12-21 20:46:39,121 INFO L130 BoogieDeclarations]: Found specification of procedure fibonacci [2021-12-21 20:46:39,121 INFO L138 BoogieDeclarations]: Found implementation of procedure fibonacci [2021-12-21 20:46:39,122 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 20:46:39,122 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 20:46:39,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 20:46:39,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 20:46:39,164 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 20:46:39,165 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 20:46:39,250 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 20:46:39,254 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 20:46:39,255 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-21 20:46:39,256 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 08:46:39 BoogieIcfgContainer [2021-12-21 20:46:39,271 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 20:46:39,272 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-21 20:46:39,273 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-21 20:46:39,275 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-21 20:46:39,276 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 08:46:38" (1/3) ... [2021-12-21 20:46:39,276 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21ec0dec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 08:46:39, skipping insertion in model container [2021-12-21 20:46:39,276 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:46:39" (2/3) ... [2021-12-21 20:46:39,276 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21ec0dec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 08:46:39, skipping insertion in model container [2021-12-21 20:46:39,276 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 08:46:39" (3/3) ... [2021-12-21 20:46:39,277 INFO L111 eAbstractionObserver]: Analyzing ICFG Fibonacci01-2.c [2021-12-21 20:46:39,281 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-21 20:46:39,282 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-12-21 20:46:39,314 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 20:46:39,318 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 [2021-12-21 20:46:39,319 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-12-21 20:46:39,329 INFO L276 IsEmpty]: Start isEmpty. Operand has 31 states, 20 states have (on average 1.5) internal successors, (30), 26 states have internal predecessors, (30), 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) [2021-12-21 20:46:39,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-12-21 20:46:39,333 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 20:46:39,333 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 20:46:39,333 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-21 20:46:39,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 20:46:39,337 INFO L85 PathProgramCache]: Analyzing trace with hash 627182713, now seen corresponding path program 1 times [2021-12-21 20:46:39,343 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 20:46:39,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066541008] [2021-12-21 20:46:39,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 20:46:39,344 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 20:46:39,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:39,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 20:46:39,527 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 20:46:39,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066541008] [2021-12-21 20:46:39,529 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066541008] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 20:46:39,529 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 20:46:39,530 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 20:46:39,531 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81013098] [2021-12-21 20:46:39,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 20:46:39,535 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-21 20:46:39,536 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 20:46:39,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-21 20:46:39,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-21 20:46:39,559 INFO L87 Difference]: Start difference. First operand has 31 states, 20 states have (on average 1.5) internal successors, (30), 26 states have internal predecessors, (30), 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, 4 states have (on average 1.75) 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) [2021-12-21 20:46:39,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 20:46:39,650 INFO L93 Difference]: Finished difference Result 34 states and 38 transitions. [2021-12-21 20:46:39,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 20:46:39,652 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) 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 [2021-12-21 20:46:39,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 20:46:39,659 INFO L225 Difference]: With dead ends: 34 [2021-12-21 20:46:39,659 INFO L226 Difference]: Without dead ends: 23 [2021-12-21 20:46:39,661 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 [2021-12-21 20:46:39,665 INFO L933 BasicCegarLoop]: 17 mSDtfsCounter, 39 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-21 20:46:39,666 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 41 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-21 20:46:39,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2021-12-21 20:46:39,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2021-12-21 20:46:39,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 15 states have (on average 1.4) internal successors, (21), 19 states have internal predecessors, (21), 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) [2021-12-21 20:46:39,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2021-12-21 20:46:39,698 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 8 [2021-12-21 20:46:39,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 20:46:39,699 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2021-12-21 20:46:39,699 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) 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) [2021-12-21 20:46:39,699 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2021-12-21 20:46:39,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-12-21 20:46:39,700 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 20:46:39,701 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 20:46:39,701 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-21 20:46:39,702 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-21 20:46:39,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 20:46:39,705 INFO L85 PathProgramCache]: Analyzing trace with hash -2032172335, now seen corresponding path program 1 times [2021-12-21 20:46:39,705 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 20:46:39,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655098418] [2021-12-21 20:46:39,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 20:46:39,705 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 20:46:39,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:39,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 20:46:39,745 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 20:46:39,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655098418] [2021-12-21 20:46:39,746 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655098418] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 20:46:39,746 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 20:46:39,746 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-21 20:46:39,746 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261111340] [2021-12-21 20:46:39,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 20:46:39,747 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 20:46:39,747 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 20:46:39,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 20:46:39,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 20:46:39,749 INFO L87 Difference]: Start difference. First operand 23 states and 26 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) [2021-12-21 20:46:39,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 20:46:39,766 INFO L93 Difference]: Finished difference Result 25 states and 29 transitions. [2021-12-21 20:46:39,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 20:46:39,766 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 [2021-12-21 20:46:39,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 20:46:39,768 INFO L225 Difference]: With dead ends: 25 [2021-12-21 20:46:39,768 INFO L226 Difference]: Without dead ends: 23 [2021-12-21 20:46:39,771 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 [2021-12-21 20:46:39,773 INFO L933 BasicCegarLoop]: 21 mSDtfsCounter, 11 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 28 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 [2021-12-21 20:46:39,773 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 28 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 20:46:39,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2021-12-21 20:46:39,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 21. [2021-12-21 20:46:39,785 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) [2021-12-21 20:46:39,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2021-12-21 20:46:39,787 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 9 [2021-12-21 20:46:39,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 20:46:39,788 INFO L470 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2021-12-21 20:46:39,788 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) [2021-12-21 20:46:39,788 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2021-12-21 20:46:39,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-12-21 20:46:39,789 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 20:46:39,790 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] [2021-12-21 20:46:39,791 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-21 20:46:39,792 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-21 20:46:39,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 20:46:39,793 INFO L85 PathProgramCache]: Analyzing trace with hash 1173651673, now seen corresponding path program 1 times [2021-12-21 20:46:39,794 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 20:46:39,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400803883] [2021-12-21 20:46:39,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 20:46:39,795 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 20:46:39,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:39,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-21 20:46:39,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:39,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-21 20:46:39,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:39,941 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-21 20:46:39,942 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 20:46:39,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400803883] [2021-12-21 20:46:39,942 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400803883] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 20:46:39,942 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 20:46:39,942 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 20:46:39,943 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896819614] [2021-12-21 20:46:39,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 20:46:39,943 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-21 20:46:39,943 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 20:46:39,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-21 20:46:39,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-21 20:46:39,945 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) [2021-12-21 20:46:39,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 20:46:39,976 INFO L93 Difference]: Finished difference Result 37 states and 43 transitions. [2021-12-21 20:46:39,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 20:46:39,976 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 [2021-12-21 20:46:39,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 20:46:39,977 INFO L225 Difference]: With dead ends: 37 [2021-12-21 20:46:39,977 INFO L226 Difference]: Without dead ends: 35 [2021-12-21 20:46:39,978 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 [2021-12-21 20:46:39,978 INFO L933 BasicCegarLoop]: 19 mSDtfsCounter, 7 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 20:46:39,979 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 57 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 20:46:39,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2021-12-21 20:46:39,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 30. [2021-12-21 20:46:39,983 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) [2021-12-21 20:46:39,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 36 transitions. [2021-12-21 20:46:39,984 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 36 transitions. Word has length 30 [2021-12-21 20:46:39,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 20:46:39,985 INFO L470 AbstractCegarLoop]: Abstraction has 30 states and 36 transitions. [2021-12-21 20:46:39,985 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) [2021-12-21 20:46:39,985 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 36 transitions. [2021-12-21 20:46:39,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-12-21 20:46:39,986 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 20:46:39,986 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] [2021-12-21 20:46:39,986 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-21 20:46:39,987 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-21 20:46:39,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 20:46:39,987 INFO L85 PathProgramCache]: Analyzing trace with hash 2034782143, now seen corresponding path program 1 times [2021-12-21 20:46:39,987 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 20:46:39,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510526535] [2021-12-21 20:46:39,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 20:46:39,988 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 20:46:39,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:40,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-21 20:46:40,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:40,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-21 20:46:40,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:40,098 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-21 20:46:40,098 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 20:46:40,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510526535] [2021-12-21 20:46:40,098 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510526535] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 20:46:40,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [239455041] [2021-12-21 20:46:40,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 20:46:40,099 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 20:46:40,099 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 20:46:40,100 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) [2021-12-21 20:46:40,101 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-21 20:46:40,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:40,136 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-21 20:46:40,139 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 20:46:40,274 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-12-21 20:46:40,274 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-21 20:46:40,455 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-12-21 20:46:40,455 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [239455041] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-21 20:46:40,455 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-21 20:46:40,455 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7, 7] total 15 [2021-12-21 20:46:40,455 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991196765] [2021-12-21 20:46:40,455 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-21 20:46:40,456 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-12-21 20:46:40,456 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 20:46:40,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-12-21 20:46:40,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2021-12-21 20:46:40,456 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) [2021-12-21 20:46:40,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 20:46:40,694 INFO L93 Difference]: Finished difference Result 91 states and 129 transitions. [2021-12-21 20:46:40,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-21 20:46:40,694 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 [2021-12-21 20:46:40,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 20:46:40,695 INFO L225 Difference]: With dead ends: 91 [2021-12-21 20:46:40,695 INFO L226 Difference]: Without dead ends: 65 [2021-12-21 20:46:40,697 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 [2021-12-21 20:46:40,697 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 116 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-21 20:46:40,697 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 93 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-21 20:46:40,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2021-12-21 20:46:40,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 53. [2021-12-21 20:46:40,703 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) [2021-12-21 20:46:40,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 68 transitions. [2021-12-21 20:46:40,705 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 68 transitions. Word has length 31 [2021-12-21 20:46:40,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 20:46:40,705 INFO L470 AbstractCegarLoop]: Abstraction has 53 states and 68 transitions. [2021-12-21 20:46:40,705 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) [2021-12-21 20:46:40,705 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 68 transitions. [2021-12-21 20:46:40,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-12-21 20:46:40,706 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 20:46:40,706 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] [2021-12-21 20:46:40,728 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-21 20:46:40,926 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 20:46:40,926 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-21 20:46:40,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 20:46:40,926 INFO L85 PathProgramCache]: Analyzing trace with hash -603092359, now seen corresponding path program 2 times [2021-12-21 20:46:40,927 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 20:46:40,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826466642] [2021-12-21 20:46:40,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 20:46:40,927 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 20:46:40,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:40,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-21 20:46:40,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:40,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 20:46:40,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:40,977 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-12-21 20:46:40,978 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 20:46:40,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826466642] [2021-12-21 20:46:40,978 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826466642] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 20:46:40,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1106912510] [2021-12-21 20:46:40,978 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-21 20:46:40,978 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 20:46:40,978 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 20:46:40,979 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) [2021-12-21 20:46:40,980 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-21 20:46:41,004 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-21 20:46:41,004 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-21 20:46:41,005 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-21 20:46:41,006 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 20:46:41,058 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-12-21 20:46:41,059 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-21 20:46:41,059 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1106912510] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 20:46:41,059 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-21 20:46:41,059 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2021-12-21 20:46:41,059 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528863522] [2021-12-21 20:46:41,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 20:46:41,059 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-21 20:46:41,059 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 20:46:41,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-21 20:46:41,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-12-21 20:46:41,060 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) [2021-12-21 20:46:41,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 20:46:41,076 INFO L93 Difference]: Finished difference Result 61 states and 76 transitions. [2021-12-21 20:46:41,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 20:46:41,077 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 [2021-12-21 20:46:41,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 20:46:41,078 INFO L225 Difference]: With dead ends: 61 [2021-12-21 20:46:41,078 INFO L226 Difference]: Without dead ends: 60 [2021-12-21 20:46:41,078 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 [2021-12-21 20:46:41,079 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 [2021-12-21 20:46:41,079 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] [2021-12-21 20:46:41,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2021-12-21 20:46:41,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 55. [2021-12-21 20:46:41,084 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) [2021-12-21 20:46:41,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 70 transitions. [2021-12-21 20:46:41,085 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 70 transitions. Word has length 25 [2021-12-21 20:46:41,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 20:46:41,085 INFO L470 AbstractCegarLoop]: Abstraction has 55 states and 70 transitions. [2021-12-21 20:46:41,085 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) [2021-12-21 20:46:41,085 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 70 transitions. [2021-12-21 20:46:41,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-12-21 20:46:41,086 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 20:46:41,086 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, 1] [2021-12-21 20:46:41,102 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-12-21 20:46:41,299 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 20:46:41,299 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting fibonacciErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-21 20:46:41,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 20:46:41,300 INFO L85 PathProgramCache]: Analyzing trace with hash -736921595, now seen corresponding path program 1 times [2021-12-21 20:46:41,300 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 20:46:41,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465955696] [2021-12-21 20:46:41,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 20:46:41,300 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 20:46:41,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:41,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-21 20:46:41,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:41,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-21 20:46:41,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:41,392 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-21 20:46:41,393 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 20:46:41,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465955696] [2021-12-21 20:46:41,393 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465955696] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 20:46:41,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1477953087] [2021-12-21 20:46:41,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 20:46:41,393 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 20:46:41,394 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 20:46:41,395 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) [2021-12-21 20:46:41,396 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-21 20:46:41,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:41,420 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-21 20:46:41,421 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 20:46:41,496 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-21 20:46:41,496 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-21 20:46:41,565 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-21 20:46:41,565 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1477953087] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-21 20:46:41,565 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-21 20:46:41,565 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 11 [2021-12-21 20:46:41,565 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364721358] [2021-12-21 20:46:41,565 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-21 20:46:41,566 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-21 20:46:41,566 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 20:46:41,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-21 20:46:41,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2021-12-21 20:46:41,568 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) [2021-12-21 20:46:41,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 20:46:41,636 INFO L93 Difference]: Finished difference Result 70 states and 94 transitions. [2021-12-21 20:46:41,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-21 20:46:41,637 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 32 [2021-12-21 20:46:41,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 20:46:41,651 INFO L225 Difference]: With dead ends: 70 [2021-12-21 20:46:41,652 INFO L226 Difference]: Without dead ends: 69 [2021-12-21 20:46:41,652 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2021-12-21 20:46:41,653 INFO L933 BasicCegarLoop]: 28 mSDtfsCounter, 16 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 20:46:41,653 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 142 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 20:46:41,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2021-12-21 20:46:41,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 67. [2021-12-21 20:46:41,659 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) [2021-12-21 20:46:41,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 91 transitions. [2021-12-21 20:46:41,660 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 91 transitions. Word has length 32 [2021-12-21 20:46:41,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 20:46:41,660 INFO L470 AbstractCegarLoop]: Abstraction has 67 states and 91 transitions. [2021-12-21 20:46:41,660 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) [2021-12-21 20:46:41,660 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 91 transitions. [2021-12-21 20:46:41,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-12-21 20:46:41,661 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 20:46:41,661 INFO L514 BasicCegarLoop]: trace histogram [6, 5, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 20:46:41,680 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-21 20:46:41,871 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 20:46:41,871 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-21 20:46:41,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 20:46:41,872 INFO L85 PathProgramCache]: Analyzing trace with hash 1336761272, now seen corresponding path program 1 times [2021-12-21 20:46:41,872 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 20:46:41,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918067582] [2021-12-21 20:46:41,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 20:46:41,877 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 20:46:41,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:41,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-21 20:46:41,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:41,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:46:41,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:41,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:46:41,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:41,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-21 20:46:41,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:41,979 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-12-21 20:46:41,980 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 20:46:41,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918067582] [2021-12-21 20:46:41,980 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918067582] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 20:46:41,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [368335796] [2021-12-21 20:46:41,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 20:46:41,980 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 20:46:41,980 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 20:46:41,981 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) [2021-12-21 20:46:41,982 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-21 20:46:42,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:42,013 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-21 20:46:42,014 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 20:46:42,101 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2021-12-21 20:46:42,101 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-21 20:46:42,259 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-12-21 20:46:42,259 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [368335796] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-21 20:46:42,259 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-21 20:46:42,259 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 7] total 13 [2021-12-21 20:46:42,259 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843139888] [2021-12-21 20:46:42,259 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-21 20:46:42,260 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-12-21 20:46:42,260 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 20:46:42,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-12-21 20:46:42,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2021-12-21 20:46:42,260 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) [2021-12-21 20:46:42,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 20:46:42,377 INFO L93 Difference]: Finished difference Result 138 states and 205 transitions. [2021-12-21 20:46:42,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-12-21 20:46:42,377 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 51 [2021-12-21 20:46:42,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 20:46:42,379 INFO L225 Difference]: With dead ends: 138 [2021-12-21 20:46:42,379 INFO L226 Difference]: Without dead ends: 137 [2021-12-21 20:46:42,379 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-21 20:46:42,381 INFO L933 BasicCegarLoop]: 25 mSDtfsCounter, 33 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-21 20:46:42,381 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 107 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-21 20:46:42,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2021-12-21 20:46:42,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 99. [2021-12-21 20:46:42,392 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) [2021-12-21 20:46:42,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 160 transitions. [2021-12-21 20:46:42,394 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 160 transitions. Word has length 51 [2021-12-21 20:46:42,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 20:46:42,394 INFO L470 AbstractCegarLoop]: Abstraction has 99 states and 160 transitions. [2021-12-21 20:46:42,394 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) [2021-12-21 20:46:42,394 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 160 transitions. [2021-12-21 20:46:42,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-12-21 20:46:42,396 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 20:46:42,396 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] [2021-12-21 20:46:42,412 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-12-21 20:46:42,607 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 20:46:42,608 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting fibonacciErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-21 20:46:42,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 20:46:42,608 INFO L85 PathProgramCache]: Analyzing trace with hash -1034679801, now seen corresponding path program 1 times [2021-12-21 20:46:42,609 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 20:46:42,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458165138] [2021-12-21 20:46:42,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 20:46:42,609 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 20:46:42,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:42,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-21 20:46:42,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:42,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:46:42,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:42,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:46:42,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:42,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-21 20:46:42,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:42,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-21 20:46:42,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:42,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-21 20:46:42,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:42,670 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2021-12-21 20:46:42,671 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 20:46:42,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458165138] [2021-12-21 20:46:42,671 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458165138] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 20:46:42,671 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 20:46:42,671 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 20:46:42,671 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603921681] [2021-12-21 20:46:42,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 20:46:42,671 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-21 20:46:42,672 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 20:46:42,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-21 20:46:42,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-21 20:46:42,672 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) [2021-12-21 20:46:42,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 20:46:42,691 INFO L93 Difference]: Finished difference Result 112 states and 174 transitions. [2021-12-21 20:46:42,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 20:46:42,691 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 [2021-12-21 20:46:42,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 20:46:42,693 INFO L225 Difference]: With dead ends: 112 [2021-12-21 20:46:42,693 INFO L226 Difference]: Without dead ends: 111 [2021-12-21 20:46:42,693 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 [2021-12-21 20:46:42,694 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 [2021-12-21 20:46:42,694 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] [2021-12-21 20:46:42,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2021-12-21 20:46:42,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 99. [2021-12-21 20:46:42,702 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) [2021-12-21 20:46:42,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 160 transitions. [2021-12-21 20:46:42,704 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 160 transitions. Word has length 70 [2021-12-21 20:46:42,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 20:46:42,704 INFO L470 AbstractCegarLoop]: Abstraction has 99 states and 160 transitions. [2021-12-21 20:46:42,704 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) [2021-12-21 20:46:42,704 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 160 transitions. [2021-12-21 20:46:42,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-12-21 20:46:42,706 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 20:46:42,706 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] [2021-12-21 20:46:42,706 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-21 20:46:42,706 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting fibonacciErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-21 20:46:42,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 20:46:42,707 INFO L85 PathProgramCache]: Analyzing trace with hash 773706717, now seen corresponding path program 2 times [2021-12-21 20:46:42,707 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 20:46:42,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790727445] [2021-12-21 20:46:42,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 20:46:42,707 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 20:46:42,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:42,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-21 20:46:42,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:42,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:46:42,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:42,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:46:42,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:42,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-21 20:46:42,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:42,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:46:42,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:42,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:46:42,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:42,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:46:42,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:42,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 20:46:42,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:42,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-21 20:46:42,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:42,838 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2021-12-21 20:46:42,838 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 20:46:42,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790727445] [2021-12-21 20:46:42,838 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790727445] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 20:46:42,838 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 20:46:42,838 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 20:46:42,838 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698863465] [2021-12-21 20:46:42,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 20:46:42,838 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-21 20:46:42,838 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 20:46:42,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-21 20:46:42,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-21 20:46:42,839 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) [2021-12-21 20:46:42,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 20:46:42,854 INFO L93 Difference]: Finished difference Result 112 states and 174 transitions. [2021-12-21 20:46:42,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 20:46:42,854 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 [2021-12-21 20:46:42,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 20:46:42,855 INFO L225 Difference]: With dead ends: 112 [2021-12-21 20:46:42,855 INFO L226 Difference]: Without dead ends: 111 [2021-12-21 20:46:42,856 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 [2021-12-21 20:46:42,856 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 6 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 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 [2021-12-21 20:46:42,856 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 51 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 20:46:42,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2021-12-21 20:46:42,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 99. [2021-12-21 20:46:42,863 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) [2021-12-21 20:46:42,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 160 transitions. [2021-12-21 20:46:42,864 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 160 transitions. Word has length 99 [2021-12-21 20:46:42,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 20:46:42,865 INFO L470 AbstractCegarLoop]: Abstraction has 99 states and 160 transitions. [2021-12-21 20:46:42,865 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) [2021-12-21 20:46:42,865 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 160 transitions. [2021-12-21 20:46:42,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-12-21 20:46:42,867 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 20:46:42,867 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] [2021-12-21 20:46:42,867 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-21 20:46:42,867 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-21 20:46:42,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 20:46:42,867 INFO L85 PathProgramCache]: Analyzing trace with hash 489976848, now seen corresponding path program 2 times [2021-12-21 20:46:42,867 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 20:46:42,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142995828] [2021-12-21 20:46:42,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 20:46:42,868 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 20:46:42,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:42,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-21 20:46:42,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:42,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:46:42,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:42,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:46:42,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:42,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-21 20:46:42,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:42,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:46:42,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:42,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:46:42,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:42,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:46:42,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:42,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 20:46:43,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:43,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:46:43,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:43,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:46:43,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:43,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:46:43,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:43,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 20:46:43,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:43,029 INFO L134 CoverageAnalysis]: Checked inductivity of 478 backedges. 61 proven. 158 refuted. 0 times theorem prover too weak. 259 trivial. 0 not checked. [2021-12-21 20:46:43,029 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 20:46:43,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142995828] [2021-12-21 20:46:43,029 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142995828] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 20:46:43,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1015248268] [2021-12-21 20:46:43,029 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-21 20:46:43,029 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 20:46:43,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 20:46:43,044 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) [2021-12-21 20:46:43,045 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-21 20:46:43,095 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-21 20:46:43,095 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-21 20:46:43,096 INFO L263 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-21 20:46:43,106 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 20:46:43,270 INFO L134 CoverageAnalysis]: Checked inductivity of 478 backedges. 68 proven. 206 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2021-12-21 20:46:43,270 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-21 20:46:43,605 INFO L134 CoverageAnalysis]: Checked inductivity of 478 backedges. 68 proven. 209 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2021-12-21 20:46:43,605 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1015248268] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-21 20:46:43,605 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-21 20:46:43,605 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 11] total 17 [2021-12-21 20:46:43,605 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350649455] [2021-12-21 20:46:43,605 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-21 20:46:43,606 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-12-21 20:46:43,606 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 20:46:43,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-12-21 20:46:43,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=196, Unknown=0, NotChecked=0, Total=272 [2021-12-21 20:46:43,607 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) [2021-12-21 20:46:43,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 20:46:43,693 INFO L93 Difference]: Finished difference Result 178 states and 303 transitions. [2021-12-21 20:46:43,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-21 20:46:43,694 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 [2021-12-21 20:46:43,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 20:46:43,694 INFO L225 Difference]: With dead ends: 178 [2021-12-21 20:46:43,694 INFO L226 Difference]: Without dead ends: 83 [2021-12-21 20:46:43,696 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 [2021-12-21 20:46:43,696 INFO L933 BasicCegarLoop]: 16 mSDtfsCounter, 187 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-21 20:46:43,696 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [190 Valid, 59 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-21 20:46:43,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2021-12-21 20:46:43,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 70. [2021-12-21 20:46:43,701 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) [2021-12-21 20:46:43,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 94 transitions. [2021-12-21 20:46:43,701 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 94 transitions. Word has length 123 [2021-12-21 20:46:43,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 20:46:43,702 INFO L470 AbstractCegarLoop]: Abstraction has 70 states and 94 transitions. [2021-12-21 20:46:43,702 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) [2021-12-21 20:46:43,702 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 94 transitions. [2021-12-21 20:46:43,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-12-21 20:46:43,702 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 20:46:43,703 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] [2021-12-21 20:46:43,735 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-12-21 20:46:43,919 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,SelfDestructingSolverStorable9 [2021-12-21 20:46:43,919 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-21 20:46:43,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 20:46:43,920 INFO L85 PathProgramCache]: Analyzing trace with hash -720593886, now seen corresponding path program 3 times [2021-12-21 20:46:43,920 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 20:46:43,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352986283] [2021-12-21 20:46:43,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 20:46:43,920 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 20:46:43,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:43,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-21 20:46:43,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:43,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:46:43,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:43,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:46:43,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:43,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:46:43,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:43,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 20:46:43,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:43,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-21 20:46:43,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:44,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:46:44,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:44,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:46:44,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:44,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:46:44,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:44,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:46:44,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:44,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 20:46:44,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:44,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-21 20:46:44,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:44,017 INFO L134 CoverageAnalysis]: Checked inductivity of 478 backedges. 49 proven. 134 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2021-12-21 20:46:44,018 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 20:46:44,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352986283] [2021-12-21 20:46:44,018 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352986283] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 20:46:44,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1535668586] [2021-12-21 20:46:44,018 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-21 20:46:44,018 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 20:46:44,018 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 20:46:44,019 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) [2021-12-21 20:46:44,020 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-21 20:46:44,056 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2021-12-21 20:46:44,056 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-21 20:46:44,056 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-21 20:46:44,058 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 20:46:44,243 INFO L134 CoverageAnalysis]: Checked inductivity of 478 backedges. 191 proven. 21 refuted. 0 times theorem prover too weak. 266 trivial. 0 not checked. [2021-12-21 20:46:44,243 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-21 20:46:44,591 INFO L134 CoverageAnalysis]: Checked inductivity of 478 backedges. 191 proven. 22 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2021-12-21 20:46:44,592 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1535668586] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-21 20:46:44,592 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-21 20:46:44,592 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 9] total 17 [2021-12-21 20:46:44,592 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885126685] [2021-12-21 20:46:44,592 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-21 20:46:44,592 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-12-21 20:46:44,592 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 20:46:44,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-12-21 20:46:44,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2021-12-21 20:46:44,593 INFO L87 Difference]: Start difference. First operand 70 states and 94 transitions. Second operand has 17 states, 17 states have (on average 4.529411764705882) internal successors, (77), 17 states have internal predecessors, (77), 7 states have call successors, (12), 1 states have call predecessors, (12), 7 states have return successors, (15), 9 states have call predecessors, (15), 7 states have call successors, (15) [2021-12-21 20:46:44,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 20:46:44,706 INFO L93 Difference]: Finished difference Result 125 states and 175 transitions. [2021-12-21 20:46:44,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-21 20:46:44,706 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 4.529411764705882) internal successors, (77), 17 states have internal predecessors, (77), 7 states have call successors, (12), 1 states have call predecessors, (12), 7 states have return successors, (15), 9 states have call predecessors, (15), 7 states have call successors, (15) Word has length 123 [2021-12-21 20:46:44,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 20:46:44,707 INFO L225 Difference]: With dead ends: 125 [2021-12-21 20:46:44,707 INFO L226 Difference]: Without dead ends: 59 [2021-12-21 20:46:44,707 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 260 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=119, Invalid=301, Unknown=0, NotChecked=0, Total=420 [2021-12-21 20:46:44,708 INFO L933 BasicCegarLoop]: 28 mSDtfsCounter, 74 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-21 20:46:44,708 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [75 Valid, 96 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-21 20:46:44,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2021-12-21 20:46:44,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2021-12-21 20:46:44,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 46 states have (on average 1.0869565217391304) internal successors, (50), 45 states have internal predecessors, (50), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (12), 8 states have call predecessors, (12), 5 states have call successors, (12) [2021-12-21 20:46:44,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 68 transitions. [2021-12-21 20:46:44,711 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 68 transitions. Word has length 123 [2021-12-21 20:46:44,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 20:46:44,712 INFO L470 AbstractCegarLoop]: Abstraction has 59 states and 68 transitions. [2021-12-21 20:46:44,712 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 4.529411764705882) internal successors, (77), 17 states have internal predecessors, (77), 7 states have call successors, (12), 1 states have call predecessors, (12), 7 states have return successors, (15), 9 states have call predecessors, (15), 7 states have call successors, (15) [2021-12-21 20:46:44,712 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 68 transitions. [2021-12-21 20:46:44,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-12-21 20:46:44,712 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 20:46:44,712 INFO L514 BasicCegarLoop]: trace histogram [12, 10, 10, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 2, 1, 1, 1, 1, 1] [2021-12-21 20:46:44,732 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-12-21 20:46:44,921 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 20:46:44,922 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-21 20:46:44,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 20:46:44,922 INFO L85 PathProgramCache]: Analyzing trace with hash -46810727, now seen corresponding path program 4 times [2021-12-21 20:46:44,922 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 20:46:44,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546640853] [2021-12-21 20:46:44,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 20:46:44,922 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 20:46:44,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:44,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-21 20:46:44,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:44,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:46:44,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:44,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:46:44,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:45,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:46:45,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:45,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 20:46:45,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:45,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-21 20:46:45,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:45,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:46:45,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:45,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:46:45,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:45,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:46:45,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:45,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 20:46:45,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:45,086 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 104 proven. 129 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2021-12-21 20:46:45,086 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 20:46:45,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546640853] [2021-12-21 20:46:45,086 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546640853] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 20:46:45,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [142314284] [2021-12-21 20:46:45,086 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-12-21 20:46:45,087 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 20:46:45,087 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 20:46:45,088 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) [2021-12-21 20:46:45,138 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-21 20:46:45,146 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-12-21 20:46:45,146 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-21 20:46:45,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 14 conjunts are in the unsatisfiable core [2021-12-21 20:46:45,150 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 20:46:45,309 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 102 proven. 158 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2021-12-21 20:46:45,309 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-21 20:46:45,779 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 102 proven. 174 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2021-12-21 20:46:45,779 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [142314284] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-21 20:46:45,779 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-21 20:46:45,779 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11, 15] total 23 [2021-12-21 20:46:45,780 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811508433] [2021-12-21 20:46:45,780 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-21 20:46:45,780 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-12-21 20:46:45,780 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 20:46:45,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-12-21 20:46:45,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=371, Unknown=0, NotChecked=0, Total=506 [2021-12-21 20:46:45,781 INFO L87 Difference]: Start difference. First operand 59 states and 68 transitions. Second operand has 23 states, 23 states have (on average 4.608695652173913) internal successors, (106), 23 states have internal predecessors, (106), 17 states have call successors, (19), 1 states have call predecessors, (19), 7 states have return successors, (22), 10 states have call predecessors, (22), 17 states have call successors, (22) [2021-12-21 20:46:45,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 20:46:45,920 INFO L93 Difference]: Finished difference Result 128 states and 153 transitions. [2021-12-21 20:46:45,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-21 20:46:45,920 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 4.608695652173913) internal successors, (106), 23 states have internal predecessors, (106), 17 states have call successors, (19), 1 states have call predecessors, (19), 7 states have return successors, (22), 10 states have call predecessors, (22), 17 states have call successors, (22) Word has length 110 [2021-12-21 20:46:45,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 20:46:45,921 INFO L225 Difference]: With dead ends: 128 [2021-12-21 20:46:45,921 INFO L226 Difference]: Without dead ends: 75 [2021-12-21 20:46:45,921 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 231 SyntacticMatches, 2 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=274, Invalid=656, Unknown=0, NotChecked=0, Total=930 [2021-12-21 20:46:45,922 INFO L933 BasicCegarLoop]: 24 mSDtfsCounter, 132 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-21 20:46:45,922 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 114 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-21 20:46:45,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2021-12-21 20:46:45,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 65. [2021-12-21 20:46:45,925 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) [2021-12-21 20:46:45,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 73 transitions. [2021-12-21 20:46:45,925 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 73 transitions. Word has length 110 [2021-12-21 20:46:45,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 20:46:45,925 INFO L470 AbstractCegarLoop]: Abstraction has 65 states and 73 transitions. [2021-12-21 20:46:45,925 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 4.608695652173913) internal successors, (106), 23 states have internal predecessors, (106), 17 states have call successors, (19), 1 states have call predecessors, (19), 7 states have return successors, (22), 10 states have call predecessors, (22), 17 states have call successors, (22) [2021-12-21 20:46:45,925 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 73 transitions. [2021-12-21 20:46:45,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-12-21 20:46:45,926 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 20:46:45,926 INFO L514 BasicCegarLoop]: trace histogram [9, 8, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 1, 1, 1, 1, 1] [2021-12-21 20:46:45,945 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-12-21 20:46:46,126 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 20:46:46,127 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting fibonacciErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-21 20:46:46,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 20:46:46,127 INFO L85 PathProgramCache]: Analyzing trace with hash 184548158, now seen corresponding path program 3 times [2021-12-21 20:46:46,127 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 20:46:46,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610241815] [2021-12-21 20:46:46,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 20:46:46,127 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 20:46:46,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:46,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-21 20:46:46,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:46,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:46:46,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:46,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:46:46,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:46,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:46:46,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:46,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 20:46:46,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:46,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-21 20:46:46,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:46,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:46:46,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:46,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:46:46,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:46,229 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 38 proven. 23 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2021-12-21 20:46:46,229 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 20:46:46,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610241815] [2021-12-21 20:46:46,229 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610241815] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 20:46:46,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [839583381] [2021-12-21 20:46:46,229 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-21 20:46:46,229 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 20:46:46,230 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 20:46:46,230 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) [2021-12-21 20:46:46,232 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-12-21 20:46:46,266 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-12-21 20:46:46,266 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-21 20:46:46,267 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-21 20:46:46,268 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 20:46:46,382 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 62 proven. 5 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2021-12-21 20:46:46,382 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-21 20:46:46,538 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 62 proven. 5 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2021-12-21 20:46:46,539 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [839583381] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-21 20:46:46,539 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-21 20:46:46,539 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 7] total 14 [2021-12-21 20:46:46,539 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592139927] [2021-12-21 20:46:46,539 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-21 20:46:46,540 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-12-21 20:46:46,540 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 20:46:46,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-12-21 20:46:46,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2021-12-21 20:46:46,541 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) [2021-12-21 20:46:46,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 20:46:46,597 INFO L93 Difference]: Finished difference Result 65 states and 73 transitions. [2021-12-21 20:46:46,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-21 20:46:46,598 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 85 [2021-12-21 20:46:46,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 20:46:46,598 INFO L225 Difference]: With dead ends: 65 [2021-12-21 20:46:46,598 INFO L226 Difference]: Without dead ends: 64 [2021-12-21 20:46:46,599 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2021-12-21 20:46:46,600 INFO L933 BasicCegarLoop]: 27 mSDtfsCounter, 15 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 20:46:46,600 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 207 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 20:46:46,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2021-12-21 20:46:46,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2021-12-21 20:46:46,604 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) [2021-12-21 20:46:46,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 72 transitions. [2021-12-21 20:46:46,605 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 72 transitions. Word has length 85 [2021-12-21 20:46:46,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 20:46:46,605 INFO L470 AbstractCegarLoop]: Abstraction has 64 states and 72 transitions. [2021-12-21 20:46:46,605 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) [2021-12-21 20:46:46,605 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 72 transitions. [2021-12-21 20:46:46,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2021-12-21 20:46:46,609 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 20:46:46,609 INFO L514 BasicCegarLoop]: trace histogram [19, 18, 15, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 6, 4, 1, 1, 1, 1, 1] [2021-12-21 20:46:46,630 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-12-21 20:46:46,828 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,SelfDestructingSolverStorable12 [2021-12-21 20:46:46,828 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-21 20:46:46,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 20:46:46,829 INFO L85 PathProgramCache]: Analyzing trace with hash 570135007, now seen corresponding path program 5 times [2021-12-21 20:46:46,829 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 20:46:46,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665195684] [2021-12-21 20:46:46,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 20:46:46,829 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 20:46:46,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:46,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-21 20:46:46,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:46,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:46:46,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:46,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:46:46,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:46,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:46:46,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:46,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:46:46,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:46,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 20:46:46,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:46,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-21 20:46:46,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:46,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:46:46,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:46,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:46:46,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:46,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-21 20:46:46,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:46,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:46:47,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:47,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:46:47,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:47,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:46:47,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:47,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:46:47,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:47,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 20:46:47,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:47,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-21 20:46:47,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:47,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:46:47,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:47,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:46:47,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:47,073 INFO L134 CoverageAnalysis]: Checked inductivity of 1105 backedges. 228 proven. 420 refuted. 0 times theorem prover too weak. 457 trivial. 0 not checked. [2021-12-21 20:46:47,073 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 20:46:47,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665195684] [2021-12-21 20:46:47,073 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665195684] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 20:46:47,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [778673383] [2021-12-21 20:46:47,073 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-12-21 20:46:47,073 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 20:46:47,073 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 20:46:47,074 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) [2021-12-21 20:46:47,075 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-12-21 20:46:47,128 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2021-12-21 20:46:47,128 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-21 20:46:47,130 INFO L263 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 14 conjunts are in the unsatisfiable core [2021-12-21 20:46:47,131 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 20:46:47,329 INFO L134 CoverageAnalysis]: Checked inductivity of 1105 backedges. 255 proven. 345 refuted. 0 times theorem prover too weak. 505 trivial. 0 not checked. [2021-12-21 20:46:47,330 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-21 20:46:47,970 INFO L134 CoverageAnalysis]: Checked inductivity of 1105 backedges. 259 proven. 357 refuted. 0 times theorem prover too weak. 489 trivial. 0 not checked. [2021-12-21 20:46:47,970 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [778673383] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-21 20:46:47,970 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-21 20:46:47,970 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 11, 15] total 27 [2021-12-21 20:46:47,970 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127679352] [2021-12-21 20:46:47,970 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-21 20:46:47,972 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-12-21 20:46:47,972 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 20:46:47,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-12-21 20:46:47,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=183, Invalid=519, Unknown=0, NotChecked=0, Total=702 [2021-12-21 20:46:47,973 INFO L87 Difference]: Start difference. First operand 64 states and 72 transitions. Second operand has 27 states, 27 states have (on average 4.888888888888889) internal successors, (132), 27 states have internal predecessors, (132), 17 states have call successors, (24), 1 states have call predecessors, (24), 9 states have return successors, (30), 19 states have call predecessors, (30), 17 states have call successors, (30) [2021-12-21 20:46:48,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 20:46:48,241 INFO L93 Difference]: Finished difference Result 153 states and 185 transitions. [2021-12-21 20:46:48,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-12-21 20:46:48,241 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 4.888888888888889) internal successors, (132), 27 states have internal predecessors, (132), 17 states have call successors, (24), 1 states have call predecessors, (24), 9 states have return successors, (30), 19 states have call predecessors, (30), 17 states have call successors, (30) Word has length 182 [2021-12-21 20:46:48,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 20:46:48,242 INFO L225 Difference]: With dead ends: 153 [2021-12-21 20:46:48,242 INFO L226 Difference]: Without dead ends: 95 [2021-12-21 20:46:48,243 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 429 GetRequests, 390 SyntacticMatches, 2 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 402 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=405, Invalid=1077, Unknown=0, NotChecked=0, Total=1482 [2021-12-21 20:46:48,244 INFO L933 BasicCegarLoop]: 28 mSDtfsCounter, 256 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-21 20:46:48,244 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [260 Valid, 153 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-21 20:46:48,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2021-12-21 20:46:48,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 82. [2021-12-21 20:46:48,249 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) [2021-12-21 20:46:48,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 97 transitions. [2021-12-21 20:46:48,250 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 97 transitions. Word has length 182 [2021-12-21 20:46:48,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 20:46:48,250 INFO L470 AbstractCegarLoop]: Abstraction has 82 states and 97 transitions. [2021-12-21 20:46:48,250 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 4.888888888888889) internal successors, (132), 27 states have internal predecessors, (132), 17 states have call successors, (24), 1 states have call predecessors, (24), 9 states have return successors, (30), 19 states have call predecessors, (30), 17 states have call successors, (30) [2021-12-21 20:46:48,250 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 97 transitions. [2021-12-21 20:46:48,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-12-21 20:46:48,251 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 20:46:48,252 INFO L514 BasicCegarLoop]: trace histogram [14, 12, 11, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 3, 1, 1, 1, 1, 1] [2021-12-21 20:46:48,283 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-12-21 20:46:48,466 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,SelfDestructingSolverStorable13 [2021-12-21 20:46:48,466 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-21 20:46:48,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 20:46:48,466 INFO L85 PathProgramCache]: Analyzing trace with hash 472435048, now seen corresponding path program 6 times [2021-12-21 20:46:48,466 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 20:46:48,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505932559] [2021-12-21 20:46:48,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 20:46:48,467 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 20:46:48,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:48,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-21 20:46:48,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:48,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:46:48,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:48,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:46:48,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:48,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:46:48,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:48,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:46:48,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:48,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 20:46:48,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:48,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-21 20:46:48,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:48,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:46:48,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:48,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:46:48,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:48,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-21 20:46:48,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:48,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:46:48,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:48,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:46:48,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:48,600 INFO L134 CoverageAnalysis]: Checked inductivity of 532 backedges. 214 proven. 68 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2021-12-21 20:46:48,601 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 20:46:48,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505932559] [2021-12-21 20:46:48,601 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505932559] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 20:46:48,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [366150466] [2021-12-21 20:46:48,601 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-12-21 20:46:48,601 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 20:46:48,601 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 20:46:48,602 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) [2021-12-21 20:46:48,634 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-12-21 20:46:48,659 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2021-12-21 20:46:48,659 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-21 20:46:48,660 INFO L263 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 25 conjunts are in the unsatisfiable core [2021-12-21 20:46:48,662 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 20:46:48,970 INFO L134 CoverageAnalysis]: Checked inductivity of 532 backedges. 61 proven. 90 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2021-12-21 20:46:48,971 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-21 20:46:49,703 INFO L134 CoverageAnalysis]: Checked inductivity of 532 backedges. 103 proven. 90 refuted. 0 times theorem prover too weak. 339 trivial. 0 not checked. [2021-12-21 20:46:49,704 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [366150466] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-21 20:46:49,704 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-21 20:46:49,704 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12, 15] total 33 [2021-12-21 20:46:49,704 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349326550] [2021-12-21 20:46:49,704 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-21 20:46:49,704 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2021-12-21 20:46:49,705 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 20:46:49,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-12-21 20:46:49,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=161, Invalid=895, Unknown=0, NotChecked=0, Total=1056 [2021-12-21 20:46:49,706 INFO L87 Difference]: Start difference. First operand 82 states and 97 transitions. Second operand has 33 states, 33 states have (on average 3.242424242424242) internal successors, (107), 33 states have internal predecessors, (107), 11 states have call successors, (15), 1 states have call predecessors, (15), 12 states have return successors, (25), 24 states have call predecessors, (25), 11 states have call successors, (25) [2021-12-21 20:46:50,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 20:46:50,201 INFO L93 Difference]: Finished difference Result 184 states and 237 transitions. [2021-12-21 20:46:50,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-12-21 20:46:50,201 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 3.242424242424242) internal successors, (107), 33 states have internal predecessors, (107), 11 states have call successors, (15), 1 states have call predecessors, (15), 12 states have return successors, (25), 24 states have call predecessors, (25), 11 states have call successors, (25) Word has length 129 [2021-12-21 20:46:50,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 20:46:50,202 INFO L225 Difference]: With dead ends: 184 [2021-12-21 20:46:50,202 INFO L226 Difference]: Without dead ends: 108 [2021-12-21 20:46:50,204 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 316 GetRequests, 262 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 840 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=491, Invalid=2589, Unknown=0, NotChecked=0, Total=3080 [2021-12-21 20:46:50,204 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 135 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 560 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 560 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-21 20:46:50,204 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 113 Invalid, 659 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 560 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-21 20:46:50,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2021-12-21 20:46:50,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 91. [2021-12-21 20:46:50,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 73 states have (on average 1.0547945205479452) internal successors, (77), 70 states have internal predecessors, (77), 10 states have call successors, (10), 8 states have call predecessors, (10), 7 states have return successors, (20), 12 states have call predecessors, (20), 9 states have call successors, (20) [2021-12-21 20:46:50,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 107 transitions. [2021-12-21 20:46:50,209 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 107 transitions. Word has length 129 [2021-12-21 20:46:50,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 20:46:50,209 INFO L470 AbstractCegarLoop]: Abstraction has 91 states and 107 transitions. [2021-12-21 20:46:50,209 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 3.242424242424242) internal successors, (107), 33 states have internal predecessors, (107), 11 states have call successors, (15), 1 states have call predecessors, (15), 12 states have return successors, (25), 24 states have call predecessors, (25), 11 states have call successors, (25) [2021-12-21 20:46:50,210 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 107 transitions. [2021-12-21 20:46:50,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2021-12-21 20:46:50,211 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 20:46:50,212 INFO L514 BasicCegarLoop]: trace histogram [31, 30, 25, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 10, 6, 1, 1, 1, 1, 1] [2021-12-21 20:46:50,230 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-12-21 20:46:50,424 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,SelfDestructingSolverStorable14 [2021-12-21 20:46:50,425 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-21 20:46:50,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 20:46:50,425 INFO L85 PathProgramCache]: Analyzing trace with hash -99623585, now seen corresponding path program 7 times [2021-12-21 20:46:50,425 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 20:46:50,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640492606] [2021-12-21 20:46:50,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 20:46:50,425 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 20:46:50,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:50,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-21 20:46:50,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:50,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:46:50,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:50,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:46:50,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:50,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:46:50,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:50,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:46:50,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:50,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:46:50,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:50,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 20:46:50,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:50,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-21 20:46:50,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:50,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:46:50,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:50,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:46:50,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:50,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-21 20:46:50,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:50,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:46:50,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:50,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:46:50,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:50,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:46:50,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:50,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 20:46:50,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:50,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-21 20:46:50,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:50,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:46:50,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:50,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:46:50,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:50,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:46:50,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:50,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:46:50,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:50,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:46:50,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:50,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 20:46:50,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:50,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-21 20:46:50,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:50,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:46:50,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:50,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:46:50,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:50,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-21 20:46:50,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:50,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:46:50,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:50,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:46:50,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:50,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:46:50,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:50,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 20:46:50,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:50,714 INFO L134 CoverageAnalysis]: Checked inductivity of 3136 backedges. 497 proven. 998 refuted. 0 times theorem prover too weak. 1641 trivial. 0 not checked. [2021-12-21 20:46:50,714 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 20:46:50,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640492606] [2021-12-21 20:46:50,715 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640492606] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 20:46:50,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1690586624] [2021-12-21 20:46:50,715 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-12-21 20:46:50,715 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 20:46:50,715 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 20:46:50,716 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) [2021-12-21 20:46:50,739 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-12-21 20:46:50,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:50,810 INFO L263 TraceCheckSpWp]: Trace formula consists of 579 conjuncts, 22 conjunts are in the unsatisfiable core [2021-12-21 20:46:50,813 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 20:46:51,229 INFO L134 CoverageAnalysis]: Checked inductivity of 3136 backedges. 555 proven. 1181 refuted. 0 times theorem prover too weak. 1400 trivial. 0 not checked. [2021-12-21 20:46:51,230 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-21 20:46:52,503 INFO L134 CoverageAnalysis]: Checked inductivity of 3136 backedges. 555 proven. 1253 refuted. 0 times theorem prover too weak. 1328 trivial. 0 not checked. [2021-12-21 20:46:52,504 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1690586624] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-21 20:46:52,504 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-21 20:46:52,504 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 15, 23] total 33 [2021-12-21 20:46:52,504 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203144249] [2021-12-21 20:46:52,504 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-21 20:46:52,505 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2021-12-21 20:46:52,505 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 20:46:52,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-12-21 20:46:52,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=257, Invalid=799, Unknown=0, NotChecked=0, Total=1056 [2021-12-21 20:46:52,506 INFO L87 Difference]: Start difference. First operand 91 states and 107 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) [2021-12-21 20:46:52,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 20:46:52,871 INFO L93 Difference]: Finished difference Result 221 states and 291 transitions. [2021-12-21 20:46:52,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-12-21 20:46:52,871 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 300 [2021-12-21 20:46:52,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 20:46:52,872 INFO L225 Difference]: With dead ends: 221 [2021-12-21 20:46:52,872 INFO L226 Difference]: Without dead ends: 136 [2021-12-21 20:46:52,874 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 695 GetRequests, 645 SyntacticMatches, 2 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 694 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=646, Invalid=1804, Unknown=0, NotChecked=0, Total=2450 [2021-12-21 20:46:52,874 INFO L933 BasicCegarLoop]: 35 mSDtfsCounter, 329 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 400 mSolverCounterSat, 195 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 333 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 195 IncrementalHoareTripleChecker+Valid, 400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-21 20:46:52,874 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [333 Valid, 184 Invalid, 595 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [195 Valid, 400 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-21 20:46:52,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2021-12-21 20:46:52,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 120. [2021-12-21 20:46:52,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 97 states have (on average 1.0515463917525774) internal successors, (102), 93 states have internal predecessors, (102), 14 states have call successors, (14), 11 states have call predecessors, (14), 8 states have return successors, (32), 15 states have call predecessors, (32), 13 states have call successors, (32) [2021-12-21 20:46:52,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 148 transitions. [2021-12-21 20:46:52,880 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 148 transitions. Word has length 300 [2021-12-21 20:46:52,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 20:46:52,881 INFO L470 AbstractCegarLoop]: Abstraction has 120 states and 148 transitions. [2021-12-21 20:46:52,881 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) [2021-12-21 20:46:52,881 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 148 transitions. [2021-12-21 20:46:52,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2021-12-21 20:46:52,883 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 20:46:52,883 INFO L514 BasicCegarLoop]: trace histogram [28, 26, 23, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 12, 12, 9, 5, 1, 1, 1, 1, 1] [2021-12-21 20:46:52,902 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-12-21 20:46:53,095 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,SelfDestructingSolverStorable15 [2021-12-21 20:46:53,095 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-21 20:46:53,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 20:46:53,096 INFO L85 PathProgramCache]: Analyzing trace with hash 513022449, now seen corresponding path program 8 times [2021-12-21 20:46:53,096 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 20:46:53,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005863263] [2021-12-21 20:46:53,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 20:46:53,096 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 20:46:53,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:53,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-21 20:46:53,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:53,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:46:53,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:53,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:46:53,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:53,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:46:53,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:53,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:46:53,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:53,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:46:53,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:53,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:46:53,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:53,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 20:46:53,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:53,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-21 20:46:53,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:53,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:46:53,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:53,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:46:53,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:53,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-21 20:46:53,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:53,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:46:53,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:53,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:46:53,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:53,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:46:53,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:53,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 20:46:53,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:53,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-21 20:46:53,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:53,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:46:53,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:53,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:46:53,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:53,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:46:53,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:53,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 20:46:53,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:53,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-12-21 20:46:53,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:53,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:46:53,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:53,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:46:53,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:53,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:46:53,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:53,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 20:46:53,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:53,397 INFO L134 CoverageAnalysis]: Checked inductivity of 2466 backedges. 782 proven. 379 refuted. 0 times theorem prover too weak. 1305 trivial. 0 not checked. [2021-12-21 20:46:53,397 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 20:46:53,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005863263] [2021-12-21 20:46:53,398 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005863263] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 20:46:53,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2129649855] [2021-12-21 20:46:53,398 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-21 20:46:53,398 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 20:46:53,398 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 20:46:53,399 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) [2021-12-21 20:46:53,400 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-12-21 20:46:53,491 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-21 20:46:53,491 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-21 20:46:53,493 INFO L263 TraceCheckSpWp]: Trace formula consists of 517 conjuncts, 18 conjunts are in the unsatisfiable core [2021-12-21 20:46:53,496 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 20:46:53,873 INFO L134 CoverageAnalysis]: Checked inductivity of 2466 backedges. 1242 proven. 484 refuted. 0 times theorem prover too weak. 740 trivial. 0 not checked. [2021-12-21 20:46:53,873 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-21 20:46:55,054 INFO L134 CoverageAnalysis]: Checked inductivity of 2466 backedges. 534 proven. 831 refuted. 0 times theorem prover too weak. 1101 trivial. 0 not checked. [2021-12-21 20:46:55,054 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2129649855] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-21 20:46:55,054 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-21 20:46:55,055 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 13, 19] total 27 [2021-12-21 20:46:55,055 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231919714] [2021-12-21 20:46:55,055 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-21 20:46:55,057 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-12-21 20:46:55,057 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 20:46:55,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-12-21 20:46:55,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=176, Invalid=526, Unknown=0, NotChecked=0, Total=702 [2021-12-21 20:46:55,058 INFO L87 Difference]: Start difference. First operand 120 states and 148 transitions. Second operand has 27 states, 27 states have (on average 5.851851851851852) internal successors, (158), 27 states have internal predecessors, (158), 23 states have call successors, (29), 2 states have call predecessors, (29), 10 states have return successors, (38), 16 states have call predecessors, (38), 23 states have call successors, (38) [2021-12-21 20:46:55,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 20:46:55,276 INFO L93 Difference]: Finished difference Result 232 states and 297 transitions. [2021-12-21 20:46:55,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-12-21 20:46:55,278 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 5.851851851851852) internal successors, (158), 27 states have internal predecessors, (158), 23 states have call successors, (29), 2 states have call predecessors, (29), 10 states have return successors, (38), 16 states have call predecessors, (38), 23 states have call successors, (38) Word has length 267 [2021-12-21 20:46:55,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 20:46:55,279 INFO L225 Difference]: With dead ends: 232 [2021-12-21 20:46:55,279 INFO L226 Difference]: Without dead ends: 118 [2021-12-21 20:46:55,280 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 608 GetRequests, 573 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 310 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=332, Invalid=858, Unknown=0, NotChecked=0, Total=1190 [2021-12-21 20:46:55,280 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 159 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-21 20:46:55,280 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 157 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-21 20:46:55,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2021-12-21 20:46:55,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 106. [2021-12-21 20:46:55,284 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) [2021-12-21 20:46:55,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 127 transitions. [2021-12-21 20:46:55,285 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 127 transitions. Word has length 267 [2021-12-21 20:46:55,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 20:46:55,285 INFO L470 AbstractCegarLoop]: Abstraction has 106 states and 127 transitions. [2021-12-21 20:46:55,286 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 5.851851851851852) internal successors, (158), 27 states have internal predecessors, (158), 23 states have call successors, (29), 2 states have call predecessors, (29), 10 states have return successors, (38), 16 states have call predecessors, (38), 23 states have call successors, (38) [2021-12-21 20:46:55,286 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 127 transitions. [2021-12-21 20:46:55,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 608 [2021-12-21 20:46:55,291 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 20:46:55,291 INFO L514 BasicCegarLoop]: trace histogram [64, 59, 52, 33, 33, 33, 33, 30, 30, 30, 30, 30, 29, 29, 28, 28, 19, 12, 1, 1, 1, 1, 1] [2021-12-21 20:46:55,309 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-12-21 20:46:55,508 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,SelfDestructingSolverStorable16 [2021-12-21 20:46:55,509 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-21 20:46:55,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 20:46:55,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1784146494, now seen corresponding path program 9 times [2021-12-21 20:46:55,509 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 20:46:55,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104882699] [2021-12-21 20:46:55,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 20:46:55,509 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 20:46:55,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:55,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-21 20:46:55,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:55,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:46:55,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:55,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:46:55,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:55,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:46:55,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:55,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:46:55,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:55,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:46:55,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:55,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:46:55,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:55,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 20:46:55,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:55,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-21 20:46:55,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:55,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:46:55,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:55,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:46:55,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:55,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-21 20:46:55,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:55,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:46:55,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:55,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:46:55,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:55,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:46:55,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:55,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 20:46:55,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:55,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-21 20:46:55,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:55,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:46:55,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:55,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:46:55,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:55,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:46:55,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:55,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:46:55,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:55,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 20:46:55,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:55,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-21 20:46:55,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:55,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:46:55,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:55,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:46:55,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:55,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2021-12-21 20:46:55,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:55,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:46:55,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:55,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:46:55,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:55,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:46:55,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:55,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:46:55,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:55,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:46:55,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:55,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:46:55,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:55,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 20:46:55,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:55,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-21 20:46:55,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:55,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:46:55,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:55,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:46:55,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:55,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-21 20:46:55,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:55,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:46:55,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:55,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:46:55,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:55,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:46:55,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:55,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 20:46:55,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:55,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-21 20:46:55,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:55,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:46:55,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:55,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:46:55,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:55,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:46:55,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:55,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:46:55,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:55,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 20:46:55,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:55,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-21 20:46:55,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:55,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:46:55,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:55,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:46:55,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:55,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 521 [2021-12-21 20:46:55,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:55,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:46:55,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:55,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:46:55,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:55,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:46:55,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:55,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:46:55,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:55,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 20:46:55,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:55,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-21 20:46:55,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:55,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:46:55,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:55,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:46:55,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:46:56,001 INFO L134 CoverageAnalysis]: Checked inductivity of 13294 backedges. 1052 proven. 2957 refuted. 0 times theorem prover too weak. 9285 trivial. 0 not checked. [2021-12-21 20:46:56,002 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 20:46:56,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104882699] [2021-12-21 20:46:56,002 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104882699] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 20:46:56,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [415935926] [2021-12-21 20:46:56,002 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-21 20:46:56,002 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 20:46:56,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 20:46:56,003 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) [2021-12-21 20:46:56,007 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-12-21 20:46:56,148 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 23 check-sat command(s) [2021-12-21 20:46:56,149 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-21 20:46:56,151 INFO L263 TraceCheckSpWp]: Trace formula consists of 641 conjuncts, 69 conjunts are in the unsatisfiable core [2021-12-21 20:46:56,156 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 20:46:57,111 INFO L134 CoverageAnalysis]: Checked inductivity of 13294 backedges. 3773 proven. 781 refuted. 0 times theorem prover too weak. 8740 trivial. 0 not checked. [2021-12-21 20:46:57,111 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-21 20:47:01,079 INFO L134 CoverageAnalysis]: Checked inductivity of 13294 backedges. 4021 proven. 720 refuted. 0 times theorem prover too weak. 8553 trivial. 0 not checked. [2021-12-21 20:47:01,079 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [415935926] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-21 20:47:01,080 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-21 20:47:01,080 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 18, 26] total 57 [2021-12-21 20:47:01,080 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295770640] [2021-12-21 20:47:01,080 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-21 20:47:01,081 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 57 states [2021-12-21 20:47:01,081 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 20:47:01,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2021-12-21 20:47:01,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=423, Invalid=2769, Unknown=0, NotChecked=0, Total=3192 [2021-12-21 20:47:01,082 INFO L87 Difference]: Start difference. First operand 106 states and 127 transitions. Second operand has 57 states, 57 states have (on average 3.1578947368421053) internal successors, (180), 57 states have internal predecessors, (180), 22 states have call successors, (26), 4 states have call predecessors, (26), 19 states have return successors, (42), 41 states have call predecessors, (42), 19 states have call successors, (42) [2021-12-21 20:47:02,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 20:47:02,256 INFO L93 Difference]: Finished difference Result 321 states and 460 transitions. [2021-12-21 20:47:02,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-12-21 20:47:02,256 INFO L78 Accepts]: Start accepts. Automaton has has 57 states, 57 states have (on average 3.1578947368421053) internal successors, (180), 57 states have internal predecessors, (180), 22 states have call successors, (26), 4 states have call predecessors, (26), 19 states have return successors, (42), 41 states have call predecessors, (42), 19 states have call successors, (42) Word has length 607 [2021-12-21 20:47:02,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 20:47:02,258 INFO L225 Difference]: With dead ends: 321 [2021-12-21 20:47:02,258 INFO L226 Difference]: Without dead ends: 221 [2021-12-21 20:47:02,261 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1411 GetRequests, 1303 SyntacticMatches, 0 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4138 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1808, Invalid=10182, Unknown=0, NotChecked=0, Total=11990 [2021-12-21 20:47:02,264 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 383 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 1060 mSolverCounterSat, 275 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 384 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 1335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 275 IncrementalHoareTripleChecker+Valid, 1060 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-21 20:47:02,264 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [384 Valid, 163 Invalid, 1335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [275 Valid, 1060 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-21 20:47:02,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2021-12-21 20:47:02,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 192. [2021-12-21 20:47:02,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 154 states have (on average 1.0324675324675325) internal successors, (159), 150 states have internal predecessors, (159), 23 states have call successors, (23), 14 states have call predecessors, (23), 14 states have return successors, (90), 27 states have call predecessors, (90), 22 states have call successors, (90) [2021-12-21 20:47:02,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 272 transitions. [2021-12-21 20:47:02,278 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 272 transitions. Word has length 607 [2021-12-21 20:47:02,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 20:47:02,279 INFO L470 AbstractCegarLoop]: Abstraction has 192 states and 272 transitions. [2021-12-21 20:47:02,279 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 57 states, 57 states have (on average 3.1578947368421053) internal successors, (180), 57 states have internal predecessors, (180), 22 states have call successors, (26), 4 states have call predecessors, (26), 19 states have return successors, (42), 41 states have call predecessors, (42), 19 states have call successors, (42) [2021-12-21 20:47:02,279 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 272 transitions. [2021-12-21 20:47:02,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1459 [2021-12-21 20:47:02,319 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 20:47:02,319 INFO L514 BasicCegarLoop]: trace histogram [150, 147, 121, 75, 75, 75, 75, 74, 74, 74, 74, 74, 73, 73, 72, 72, 46, 29, 1, 1, 1, 1, 1] [2021-12-21 20:47:02,339 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-12-21 20:47:02,535 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-12-21 20:47:02,535 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-21 20:47:02,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 20:47:02,536 INFO L85 PathProgramCache]: Analyzing trace with hash 424783418, now seen corresponding path program 10 times [2021-12-21 20:47:02,536 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 20:47:02,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686362538] [2021-12-21 20:47:02,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 20:47:02,536 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 20:47:02,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:02,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-21 20:47:02,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:02,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:02,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:02,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:02,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:02,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:03,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:03,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:03,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:03,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:03,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 20:47:03,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-21 20:47:03,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:03,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:03,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-21 20:47:03,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:03,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:03,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:03,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 20:47:03,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-21 20:47:03,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:03,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:03,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:03,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:03,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 20:47:03,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-21 20:47:03,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:03,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:03,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2021-12-21 20:47:03,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:03,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:03,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:03,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:03,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:03,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 20:47:03,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-21 20:47:03,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:03,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:03,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-21 20:47:03,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:03,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:03,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:03,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 20:47:03,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 422 [2021-12-21 20:47:03,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:03,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:03,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:03,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:03,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:03,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:03,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:03,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:03,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 20:47:03,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-21 20:47:03,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:03,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:03,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-21 20:47:03,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:03,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:03,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:03,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 20:47:03,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-21 20:47:03,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:03,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:03,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:03,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:03,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 20:47:03,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-21 20:47:03,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:03,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:03,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2021-12-21 20:47:03,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:03,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:03,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:03,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:03,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 20:47:03,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-21 20:47:03,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:03,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:03,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2021-12-21 20:47:03,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:03,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:03,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:03,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:03,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:03,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 20:47:03,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-21 20:47:03,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:03,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:03,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-21 20:47:03,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:03,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:03,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:03,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 20:47:03,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 921 [2021-12-21 20:47:03,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:03,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:03,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:03,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:03,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:03,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:03,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:03,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:03,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:03,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 20:47:03,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-21 20:47:03,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:03,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:03,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-21 20:47:03,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:03,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:03,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:03,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 20:47:03,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-21 20:47:03,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:03,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:03,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:03,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:03,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 20:47:03,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-21 20:47:03,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:03,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:03,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2021-12-21 20:47:03,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:03,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:03,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:03,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:03,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 20:47:03,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-21 20:47:03,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:03,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:03,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2021-12-21 20:47:03,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:03,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:03,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:03,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:03,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 20:47:03,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-21 20:47:03,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:03,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:03,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 445 [2021-12-21 20:47:03,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:03,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:03,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:03,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:03,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 20:47:03,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-21 20:47:03,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:03,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:03,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:03,928 INFO L134 CoverageAnalysis]: Checked inductivity of 78013 backedges. 3000 proven. 11377 refuted. 0 times theorem prover too weak. 63636 trivial. 0 not checked. [2021-12-21 20:47:03,929 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 20:47:03,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686362538] [2021-12-21 20:47:03,929 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686362538] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 20:47:03,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [894099623] [2021-12-21 20:47:03,929 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-12-21 20:47:03,929 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 20:47:03,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 20:47:03,930 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) [2021-12-21 20:47:03,964 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-12-21 20:47:04,234 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-12-21 20:47:04,234 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-21 20:47:04,240 INFO L263 TraceCheckSpWp]: Trace formula consists of 1811 conjuncts, 30 conjunts are in the unsatisfiable core [2021-12-21 20:47:04,256 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 20:47:05,781 INFO L134 CoverageAnalysis]: Checked inductivity of 78013 backedges. 39359 proven. 6472 refuted. 0 times theorem prover too weak. 32182 trivial. 0 not checked. [2021-12-21 20:47:05,781 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-21 20:47:09,557 INFO L134 CoverageAnalysis]: Checked inductivity of 78013 backedges. 2954 proven. 12757 refuted. 0 times theorem prover too weak. 62302 trivial. 0 not checked. [2021-12-21 20:47:09,557 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [894099623] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-21 20:47:09,557 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-21 20:47:09,558 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 19, 29] total 42 [2021-12-21 20:47:09,558 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535735623] [2021-12-21 20:47:09,558 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-21 20:47:09,559 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2021-12-21 20:47:09,559 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 20:47:09,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2021-12-21 20:47:09,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=402, Invalid=1320, Unknown=0, NotChecked=0, Total=1722 [2021-12-21 20:47:09,560 INFO L87 Difference]: Start difference. First operand 192 states and 272 transitions. Second operand has 42 states, 42 states have (on average 5.5476190476190474) internal successors, (233), 42 states have internal predecessors, (233), 38 states have call successors, (45), 4 states have call predecessors, (45), 14 states have return successors, (59), 24 states have call predecessors, (59), 36 states have call successors, (59) [2021-12-21 20:47:10,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 20:47:10,172 INFO L93 Difference]: Finished difference Result 439 states and 687 transitions. [2021-12-21 20:47:10,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-12-21 20:47:10,173 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 5.5476190476190474) internal successors, (233), 42 states have internal predecessors, (233), 38 states have call successors, (45), 4 states have call predecessors, (45), 14 states have return successors, (59), 24 states have call predecessors, (59), 36 states have call successors, (59) Word has length 1458 [2021-12-21 20:47:10,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 20:47:10,177 INFO L225 Difference]: With dead ends: 439 [2021-12-21 20:47:10,177 INFO L226 Difference]: Without dead ends: 253 [2021-12-21 20:47:10,180 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3269 GetRequests, 3197 SyntacticMatches, 2 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1466 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=1305, Invalid=3807, Unknown=0, NotChecked=0, Total=5112 [2021-12-21 20:47:10,181 INFO L933 BasicCegarLoop]: 35 mSDtfsCounter, 697 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 493 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 701 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 975 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 493 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-21 20:47:10,181 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [701 Valid, 194 Invalid, 975 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [493 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-21 20:47:10,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2021-12-21 20:47:10,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 224. [2021-12-21 20:47:10,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 181 states have (on average 1.0386740331491713) internal successors, (188), 175 states have internal predecessors, (188), 27 states have call successors, (27), 18 states have call predecessors, (27), 15 states have return successors, (92), 30 states have call predecessors, (92), 26 states have call successors, (92) [2021-12-21 20:47:10,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 307 transitions. [2021-12-21 20:47:10,192 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 307 transitions. Word has length 1458 [2021-12-21 20:47:10,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 20:47:10,193 INFO L470 AbstractCegarLoop]: Abstraction has 224 states and 307 transitions. [2021-12-21 20:47:10,194 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 5.5476190476190474) internal successors, (233), 42 states have internal predecessors, (233), 38 states have call successors, (45), 4 states have call predecessors, (45), 14 states have return successors, (59), 24 states have call predecessors, (59), 36 states have call successors, (59) [2021-12-21 20:47:10,194 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 307 transitions. [2021-12-21 20:47:10,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 693 [2021-12-21 20:47:10,198 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 20:47:10,198 INFO L514 BasicCegarLoop]: trace histogram [71, 70, 57, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 34, 34, 22, 14, 1, 1, 1, 1, 1] [2021-12-21 20:47:10,216 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-12-21 20:47:10,403 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 20:47:10,403 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-21 20:47:10,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 20:47:10,404 INFO L85 PathProgramCache]: Analyzing trace with hash 875501793, now seen corresponding path program 11 times [2021-12-21 20:47:10,404 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 20:47:10,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374662288] [2021-12-21 20:47:10,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 20:47:10,404 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 20:47:10,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:10,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-21 20:47:10,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:10,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:10,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:10,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:10,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:10,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:10,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:10,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:10,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:10,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:10,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:10,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:10,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:10,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:10,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:10,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:10,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:10,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:10,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:10,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 20:47:10,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:10,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-21 20:47:10,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:10,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:10,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:10,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:10,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:10,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-21 20:47:10,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:10,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:10,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:10,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:10,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:10,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:10,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:10,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 20:47:10,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:10,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-21 20:47:10,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:10,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:10,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:10,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:10,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:10,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:10,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:10,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:10,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:10,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 20:47:10,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:10,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-21 20:47:10,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:10,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:10,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:10,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:10,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:10,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2021-12-21 20:47:10,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:10,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:10,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:10,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:10,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:10,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:10,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:10,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:10,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:10,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 20:47:10,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:10,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-21 20:47:10,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:10,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:10,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:10,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:10,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:10,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2021-12-21 20:47:10,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:10,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:10,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:10,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:10,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:10,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:10,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:10,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:10,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:10,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 20:47:10,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:10,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-21 20:47:10,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:10,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:10,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:10,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:10,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:10,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 445 [2021-12-21 20:47:10,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:10,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:10,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:11,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:11,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:11,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:11,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:11,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:11,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:11,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:11,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:11,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 20:47:11,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:11,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-21 20:47:11,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:11,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:11,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:11,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:11,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:11,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-21 20:47:11,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:11,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:11,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:11,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:11,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:11,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:11,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:11,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 20:47:11,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:11,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 606 [2021-12-21 20:47:11,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:11,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:11,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:11,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:11,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:11,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:11,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:11,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:11,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:11,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 20:47:11,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:11,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-21 20:47:11,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:11,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:11,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:11,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:11,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:11,114 INFO L134 CoverageAnalysis]: Checked inductivity of 17312 backedges. 3019 proven. 1674 refuted. 0 times theorem prover too weak. 12619 trivial. 0 not checked. [2021-12-21 20:47:11,115 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 20:47:11,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374662288] [2021-12-21 20:47:11,115 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374662288] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 20:47:11,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [3430574] [2021-12-21 20:47:11,115 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-12-21 20:47:11,115 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 20:47:11,115 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 20:47:11,116 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) [2021-12-21 20:47:11,118 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-12-21 20:47:11,337 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 23 check-sat command(s) [2021-12-21 20:47:11,337 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-21 20:47:11,339 INFO L263 TraceCheckSpWp]: Trace formula consists of 706 conjuncts, 16 conjunts are in the unsatisfiable core [2021-12-21 20:47:11,345 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 20:47:12,073 INFO L134 CoverageAnalysis]: Checked inductivity of 17312 backedges. 9872 proven. 500 refuted. 0 times theorem prover too weak. 6940 trivial. 0 not checked. [2021-12-21 20:47:12,073 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-21 20:47:13,987 INFO L134 CoverageAnalysis]: Checked inductivity of 17312 backedges. 1879 proven. 2554 refuted. 0 times theorem prover too weak. 12879 trivial. 0 not checked. [2021-12-21 20:47:13,987 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [3430574] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-21 20:47:13,987 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-21 20:47:13,988 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 12, 17] total 31 [2021-12-21 20:47:13,988 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399460054] [2021-12-21 20:47:13,988 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-21 20:47:13,989 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2021-12-21 20:47:13,989 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 20:47:13,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-12-21 20:47:13,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=237, Invalid=693, Unknown=0, NotChecked=0, Total=930 [2021-12-21 20:47:13,990 INFO L87 Difference]: Start difference. First operand 224 states and 307 transitions. Second operand has 31 states, 31 states have (on average 5.387096774193548) internal successors, (167), 31 states have internal predecessors, (167), 20 states have call successors, (31), 2 states have call predecessors, (31), 12 states have return successors, (41), 24 states have call predecessors, (41), 20 states have call successors, (41) [2021-12-21 20:47:14,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 20:47:14,356 INFO L93 Difference]: Finished difference Result 423 states and 617 transitions. [2021-12-21 20:47:14,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-12-21 20:47:14,356 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 5.387096774193548) internal successors, (167), 31 states have internal predecessors, (167), 20 states have call successors, (31), 2 states have call predecessors, (31), 12 states have return successors, (41), 24 states have call predecessors, (41), 20 states have call successors, (41) Word has length 692 [2021-12-21 20:47:14,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 20:47:14,358 INFO L225 Difference]: With dead ends: 423 [2021-12-21 20:47:14,358 INFO L226 Difference]: Without dead ends: 205 [2021-12-21 20:47:14,359 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1552 GetRequests, 1512 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 456 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=413, Invalid=1147, Unknown=0, NotChecked=0, Total=1560 [2021-12-21 20:47:14,360 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 216 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 567 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 724 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-21 20:47:14,360 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [218 Valid, 243 Invalid, 724 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [157 Valid, 567 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-21 20:47:14,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2021-12-21 20:47:14,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 174. [2021-12-21 20:47:14,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 141 states have (on average 1.0354609929078014) internal successors, (146), 137 states have internal predecessors, (146), 22 states have call successors, (22), 17 states have call predecessors, (22), 10 states have return successors, (57), 19 states have call predecessors, (57), 21 states have call successors, (57) [2021-12-21 20:47:14,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 225 transitions. [2021-12-21 20:47:14,367 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 225 transitions. Word has length 692 [2021-12-21 20:47:14,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 20:47:14,367 INFO L470 AbstractCegarLoop]: Abstraction has 174 states and 225 transitions. [2021-12-21 20:47:14,368 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 5.387096774193548) internal successors, (167), 31 states have internal predecessors, (167), 20 states have call successors, (31), 2 states have call predecessors, (31), 12 states have return successors, (41), 24 states have call predecessors, (41), 20 states have call successors, (41) [2021-12-21 20:47:14,368 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 225 transitions. [2021-12-21 20:47:14,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 811 [2021-12-21 20:47:14,372 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 20:47:14,372 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] [2021-12-21 20:47:14,393 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-12-21 20:47:14,586 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 20:47:14,586 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-21 20:47:14,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 20:47:14,587 INFO L85 PathProgramCache]: Analyzing trace with hash -697208895, now seen corresponding path program 12 times [2021-12-21 20:47:14,587 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 20:47:14,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557513891] [2021-12-21 20:47:14,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 20:47:14,587 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 20:47:14,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:14,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-21 20:47:14,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:14,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:14,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:14,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:14,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:14,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:14,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:14,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:14,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:14,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:14,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:14,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:14,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:14,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:14,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:14,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:14,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:14,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 20:47:14,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:14,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-21 20:47:14,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:15,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:15,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:15,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:15,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:15,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-21 20:47:15,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:15,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:15,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:15,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:15,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:15,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:15,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:15,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 20:47:15,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:15,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-21 20:47:15,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:15,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:15,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:15,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:15,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:15,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:15,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:15,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:15,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:15,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 20:47:15,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:15,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-21 20:47:15,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:15,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:15,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:15,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:15,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:15,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2021-12-21 20:47:15,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:15,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:15,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:15,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:15,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:15,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:15,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:15,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:15,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:15,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:15,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:15,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 20:47:15,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:15,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-21 20:47:15,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:15,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:15,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:15,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:15,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:15,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-21 20:47:15,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:15,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:15,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:15,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:15,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:15,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:15,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:15,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 20:47:15,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:15,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 406 [2021-12-21 20:47:15,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:15,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:15,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:15,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:15,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:15,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:15,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:15,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:15,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:15,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:15,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:15,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 20:47:15,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:15,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-21 20:47:15,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:15,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:15,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:15,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:15,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:15,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-21 20:47:15,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:15,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:15,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:15,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:15,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:15,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:15,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:15,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 20:47:15,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:15,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 567 [2021-12-21 20:47:15,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:15,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:15,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:15,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:15,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:15,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:15,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:15,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:15,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:15,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:15,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:15,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:15,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:15,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 20:47:15,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:15,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-21 20:47:15,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:15,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:15,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:15,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:15,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:15,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-21 20:47:15,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:15,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:15,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:15,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:15,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:15,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:15,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:15,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 20:47:15,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:15,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-21 20:47:15,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:15,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:15,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:15,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:15,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:15,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:15,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:15,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:15,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:15,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 20:47:15,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:15,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-21 20:47:15,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:15,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:15,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:15,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:15,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:15,331 INFO L134 CoverageAnalysis]: Checked inductivity of 23819 backedges. 2337 proven. 4185 refuted. 0 times theorem prover too weak. 17297 trivial. 0 not checked. [2021-12-21 20:47:15,332 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 20:47:15,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557513891] [2021-12-21 20:47:15,332 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557513891] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 20:47:15,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1335579499] [2021-12-21 20:47:15,332 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-12-21 20:47:15,332 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 20:47:15,333 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 20:47:15,333 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) [2021-12-21 20:47:15,334 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-12-21 20:47:15,623 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 45 check-sat command(s) [2021-12-21 20:47:15,624 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-21 20:47:15,627 INFO L263 TraceCheckSpWp]: Trace formula consists of 1070 conjuncts, 22 conjunts are in the unsatisfiable core [2021-12-21 20:47:15,633 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 20:47:16,483 INFO L134 CoverageAnalysis]: Checked inductivity of 23819 backedges. 3035 proven. 2843 refuted. 0 times theorem prover too weak. 17941 trivial. 0 not checked. [2021-12-21 20:47:16,483 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-21 20:47:18,647 INFO L134 CoverageAnalysis]: Checked inductivity of 23819 backedges. 3055 proven. 2912 refuted. 0 times theorem prover too weak. 17852 trivial. 0 not checked. [2021-12-21 20:47:18,648 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1335579499] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-21 20:47:18,649 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-21 20:47:18,649 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 15, 23] total 41 [2021-12-21 20:47:18,649 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469582050] [2021-12-21 20:47:18,649 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-21 20:47:18,650 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2021-12-21 20:47:18,650 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 20:47:18,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-12-21 20:47:18,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=368, Invalid=1272, Unknown=0, NotChecked=0, Total=1640 [2021-12-21 20:47:18,651 INFO L87 Difference]: Start difference. First operand 174 states and 225 transitions. Second operand has 41 states, 41 states have (on average 5.024390243902439) internal successors, (206), 41 states have internal predecessors, (206), 26 states have call successors, (37), 1 states have call predecessors, (37), 17 states have return successors, (52), 32 states have call predecessors, (52), 26 states have call successors, (52) [2021-12-21 20:47:19,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 20:47:19,168 INFO L93 Difference]: Finished difference Result 367 states and 502 transitions. [2021-12-21 20:47:19,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-12-21 20:47:19,168 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 41 states have (on average 5.024390243902439) internal successors, (206), 41 states have internal predecessors, (206), 26 states have call successors, (37), 1 states have call predecessors, (37), 17 states have return successors, (52), 32 states have call predecessors, (52), 26 states have call successors, (52) Word has length 810 [2021-12-21 20:47:19,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 20:47:19,170 INFO L225 Difference]: With dead ends: 367 [2021-12-21 20:47:19,170 INFO L226 Difference]: Without dead ends: 199 [2021-12-21 20:47:19,172 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1821 GetRequests, 1763 SyntacticMatches, 4 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1127 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=730, Invalid=2350, Unknown=0, NotChecked=0, Total=3080 [2021-12-21 20:47:19,172 INFO L933 BasicCegarLoop]: 63 mSDtfsCounter, 375 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 872 mSolverCounterSat, 305 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 376 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 1177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 305 IncrementalHoareTripleChecker+Valid, 872 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-21 20:47:19,172 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [376 Valid, 335 Invalid, 1177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [305 Valid, 872 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-21 20:47:19,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2021-12-21 20:47:19,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 154. [2021-12-21 20:47:19,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 124 states have (on average 1.0241935483870968) internal successors, (127), 122 states have internal predecessors, (127), 20 states have call successors, (20), 15 states have call predecessors, (20), 9 states have return successors, (47), 16 states have call predecessors, (47), 19 states have call successors, (47) [2021-12-21 20:47:19,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 194 transitions. [2021-12-21 20:47:19,179 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 194 transitions. Word has length 810 [2021-12-21 20:47:19,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 20:47:19,179 INFO L470 AbstractCegarLoop]: Abstraction has 154 states and 194 transitions. [2021-12-21 20:47:19,179 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 5.024390243902439) internal successors, (206), 41 states have internal predecessors, (206), 26 states have call successors, (37), 1 states have call predecessors, (37), 17 states have return successors, (52), 32 states have call predecessors, (52), 26 states have call successors, (52) [2021-12-21 20:47:19,180 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 194 transitions. [2021-12-21 20:47:19,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1752 [2021-12-21 20:47:19,195 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 20:47:19,195 INFO L514 BasicCegarLoop]: trace histogram [181, 175, 147, 92, 92, 92, 92, 88, 88, 88, 88, 88, 87, 87, 86, 86, 55, 34, 1, 1, 1, 1, 1] [2021-12-21 20:47:19,219 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-12-21 20:47:19,411 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 20:47:19,411 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-21 20:47:19,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 20:47:19,412 INFO L85 PathProgramCache]: Analyzing trace with hash -338303144, now seen corresponding path program 13 times [2021-12-21 20:47:19,412 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 20:47:19,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428811258] [2021-12-21 20:47:19,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 20:47:19,412 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 20:47:19,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:19,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-21 20:47:19,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:19,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:19,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:19,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:19,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:20,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:20,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:20,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:20,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:20,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:20,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 20:47:20,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-21 20:47:20,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:20,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:20,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-21 20:47:20,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:20,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:20,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:20,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 20:47:20,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-21 20:47:20,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:20,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:20,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:20,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:20,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 20:47:20,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-21 20:47:20,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:20,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:20,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2021-12-21 20:47:20,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:20,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:20,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:20,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:20,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:20,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 20:47:20,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-21 20:47:20,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:20,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:20,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-21 20:47:20,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:20,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:20,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:20,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 20:47:20,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 406 [2021-12-21 20:47:20,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:20,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:20,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:20,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:20,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:20,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:20,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 20:47:20,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-21 20:47:20,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:20,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:20,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-21 20:47:20,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:20,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:20,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:20,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 20:47:20,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-21 20:47:20,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:20,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:20,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:20,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:20,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 20:47:20,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-21 20:47:20,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:20,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:20,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 695 [2021-12-21 20:47:20,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:20,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:20,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:20,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:20,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:20,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:20,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:20,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:20,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 20:47:20,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-21 20:47:20,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:20,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:20,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-21 20:47:20,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:20,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:20,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:20,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 20:47:20,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-21 20:47:20,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:20,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:20,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:20,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:20,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 20:47:20,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-21 20:47:20,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:20,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:20,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2021-12-21 20:47:20,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:20,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:20,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:20,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:20,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:20,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 20:47:20,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-21 20:47:20,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:20,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:20,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-21 20:47:20,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:20,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:20,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:20,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 20:47:20,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 406 [2021-12-21 20:47:20,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:20,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:20,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:20,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:20,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:20,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:20,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 20:47:20,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-21 20:47:20,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:20,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:20,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-21 20:47:20,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:20,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:20,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:20,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 20:47:20,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-21 20:47:20,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:20,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:20,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:20,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:20,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 20:47:20,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-21 20:47:20,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:20,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:20,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1351 [2021-12-21 20:47:20,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:20,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:20,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:20,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:20,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:20,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:20,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:20,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 20:47:20,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-21 20:47:20,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:20,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:20,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-21 20:47:20,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:20,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:20,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:20,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 20:47:20,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-21 20:47:20,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:20,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:20,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:20,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:20,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 20:47:20,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-21 20:47:20,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:20,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:20,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2021-12-21 20:47:20,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:20,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:20,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:20,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:20,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:20,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 20:47:20,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-21 20:47:20,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:20,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:20,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-21 20:47:20,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:20,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:20,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:20,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:20,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 20:47:20,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:21,001 INFO L134 CoverageAnalysis]: Checked inductivity of 112768 backedges. 4333 proven. 14619 refuted. 0 times theorem prover too weak. 93816 trivial. 0 not checked. [2021-12-21 20:47:21,002 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 20:47:21,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428811258] [2021-12-21 20:47:21,002 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428811258] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 20:47:21,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1599757433] [2021-12-21 20:47:21,002 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-12-21 20:47:21,002 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 20:47:21,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 20:47:21,003 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) [2021-12-21 20:47:21,032 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-12-21 20:47:21,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:21,463 INFO L263 TraceCheckSpWp]: Trace formula consists of 3255 conjuncts, 34 conjunts are in the unsatisfiable core [2021-12-21 20:47:21,476 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 20:47:23,180 INFO L134 CoverageAnalysis]: Checked inductivity of 112768 backedges. 44681 proven. 10618 refuted. 0 times theorem prover too weak. 57469 trivial. 0 not checked. [2021-12-21 20:47:23,180 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-21 20:47:27,471 INFO L134 CoverageAnalysis]: Checked inductivity of 112768 backedges. 4851 proven. 15687 refuted. 0 times theorem prover too weak. 92230 trivial. 0 not checked. [2021-12-21 20:47:27,471 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1599757433] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-21 20:47:27,472 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-21 20:47:27,472 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 21, 31] total 45 [2021-12-21 20:47:27,472 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036882513] [2021-12-21 20:47:27,472 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-21 20:47:27,474 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2021-12-21 20:47:27,474 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 20:47:27,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2021-12-21 20:47:27,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=458, Invalid=1522, Unknown=0, NotChecked=0, Total=1980 [2021-12-21 20:47:27,475 INFO L87 Difference]: Start difference. First operand 154 states and 194 transitions. Second operand has 45 states, 45 states have (on average 5.4) internal successors, (243), 45 states have internal predecessors, (243), 41 states have call successors, (47), 6 states have call predecessors, (47), 14 states have return successors, (59), 24 states have call predecessors, (59), 37 states have call successors, (59) [2021-12-21 20:47:28,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 20:47:28,047 INFO L93 Difference]: Finished difference Result 366 states and 500 transitions. [2021-12-21 20:47:28,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-12-21 20:47:28,049 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 45 states have (on average 5.4) internal successors, (243), 45 states have internal predecessors, (243), 41 states have call successors, (47), 6 states have call predecessors, (47), 14 states have return successors, (59), 24 states have call predecessors, (59), 37 states have call successors, (59) Word has length 1751 [2021-12-21 20:47:28,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 20:47:28,052 INFO L225 Difference]: With dead ends: 366 [2021-12-21 20:47:28,052 INFO L226 Difference]: Without dead ends: 218 [2021-12-21 20:47:28,054 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3916 GetRequests, 3839 SyntacticMatches, 2 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1729 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=1534, Invalid=4318, Unknown=0, NotChecked=0, Total=5852 [2021-12-21 20:47:28,054 INFO L933 BasicCegarLoop]: 28 mSDtfsCounter, 557 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 281 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 559 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 281 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-21 20:47:28,055 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [559 Valid, 202 Invalid, 733 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [281 Valid, 452 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-21 20:47:28,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2021-12-21 20:47:28,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 167. [2021-12-21 20:47:28,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 134 states have (on average 1.0223880597014925) internal successors, (137), 133 states have internal predecessors, (137), 22 states have call successors, (22), 16 states have call predecessors, (22), 10 states have return successors, (56), 17 states have call predecessors, (56), 21 states have call successors, (56) [2021-12-21 20:47:28,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 215 transitions. [2021-12-21 20:47:28,064 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 215 transitions. Word has length 1751 [2021-12-21 20:47:28,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 20:47:28,065 INFO L470 AbstractCegarLoop]: Abstraction has 167 states and 215 transitions. [2021-12-21 20:47:28,065 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 45 states have (on average 5.4) internal successors, (243), 45 states have internal predecessors, (243), 41 states have call successors, (47), 6 states have call predecessors, (47), 14 states have return successors, (59), 24 states have call predecessors, (59), 37 states have call successors, (59) [2021-12-21 20:47:28,065 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 215 transitions. [2021-12-21 20:47:28,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1072 [2021-12-21 20:47:28,074 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 20:47:28,074 INFO L514 BasicCegarLoop]: trace histogram [110, 108, 89, 55, 55, 55, 55, 54, 54, 54, 54, 54, 54, 54, 53, 53, 34, 21, 1, 1, 1, 1, 1] [2021-12-21 20:47:28,101 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2021-12-21 20:47:28,291 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 20:47:28,291 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-21 20:47:28,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 20:47:28,292 INFO L85 PathProgramCache]: Analyzing trace with hash -1677138856, now seen corresponding path program 14 times [2021-12-21 20:47:28,292 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 20:47:28,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497118138] [2021-12-21 20:47:28,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 20:47:28,292 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 20:47:28,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:28,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-21 20:47:28,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:28,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:28,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:28,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:28,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:28,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:28,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:28,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:28,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:28,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:28,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:28,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:28,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:28,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:28,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:28,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:28,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:28,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 20:47:28,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:28,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-21 20:47:28,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:28,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:28,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:28,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:28,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:28,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-21 20:47:28,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:28,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:28,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:28,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:28,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:28,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:28,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:28,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 20:47:28,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:28,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-21 20:47:28,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:29,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:29,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:29,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:29,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:29,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:29,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:29,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:29,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:29,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 20:47:29,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:29,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-21 20:47:29,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:29,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:29,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:29,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:29,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:29,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2021-12-21 20:47:29,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:29,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:29,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:29,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:29,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:29,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:29,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:29,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:29,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:29,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:29,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:29,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 20:47:29,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:29,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-21 20:47:29,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:29,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:29,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:29,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:29,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:29,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-21 20:47:29,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:29,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:29,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:29,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:29,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:29,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:29,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:29,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 20:47:29,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:29,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 406 [2021-12-21 20:47:29,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:29,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:29,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:29,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:29,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:29,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:29,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:29,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:29,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:29,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:29,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:29,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:29,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:29,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 20:47:29,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:29,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-21 20:47:29,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:29,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:29,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:29,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:29,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:29,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-21 20:47:29,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:29,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:29,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:29,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:29,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:29,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:29,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:29,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 20:47:29,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:29,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-21 20:47:29,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:29,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:29,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:29,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:29,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:29,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:29,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:29,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:29,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:29,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 20:47:29,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:29,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-21 20:47:29,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:29,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:29,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:29,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:29,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:29,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 671 [2021-12-21 20:47:29,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:29,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:29,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:29,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:29,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:29,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:29,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:29,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:29,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:29,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:29,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:29,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:29,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:29,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:29,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:29,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 20:47:29,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:29,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-21 20:47:29,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:29,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:29,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:29,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:29,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:29,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-21 20:47:29,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:29,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:29,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:29,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:29,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:29,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:29,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:29,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 20:47:29,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:29,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-21 20:47:29,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:29,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:29,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:29,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:29,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:29,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:29,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:29,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:29,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:29,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 20:47:29,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:29,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-21 20:47:29,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:29,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:29,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:29,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:29,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:29,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2021-12-21 20:47:29,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:29,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:29,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:29,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:29,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:29,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:29,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:29,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:29,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:29,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:29,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:29,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 20:47:29,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:29,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-21 20:47:29,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:29,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:29,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:29,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:29,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:29,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-21 20:47:29,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:29,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:29,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:29,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 20:47:29,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:29,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 20:47:29,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:29,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 20:47:29,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 20:47:29,630 INFO L134 CoverageAnalysis]: Checked inductivity of 41881 backedges. 6686 proven. 7802 refuted. 0 times theorem prover too weak. 27393 trivial. 0 not checked. [2021-12-21 20:47:29,630 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 20:47:29,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497118138] [2021-12-21 20:47:29,631 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497118138] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 20:47:29,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [806343403] [2021-12-21 20:47:29,631 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-21 20:47:29,631 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 20:47:29,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 20:47:29,632 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) [2021-12-21 20:47:29,635 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-12-21 20:47:30,009 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-21 20:47:30,009 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-21 20:47:30,020 INFO L263 TraceCheckSpWp]: Trace formula consists of 2002 conjuncts, 217 conjunts are in the unsatisfiable core [2021-12-21 20:47:30,032 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 20:47:31,705 INFO L134 CoverageAnalysis]: Checked inductivity of 41881 backedges. 6686 proven. 7802 refuted. 0 times theorem prover too weak. 27393 trivial. 0 not checked. [2021-12-21 20:47:31,705 INFO L328 TraceCheckSpWp]: Computing backward predicates...