./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 ae007674 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-ae00767 [2021-12-28 08:44:13,255 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 08:44:13,259 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 08:44:13,294 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 08:44:13,297 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 08:44:13,300 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 08:44:13,302 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 08:44:13,306 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 08:44:13,308 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 08:44:13,312 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 08:44:13,313 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 08:44:13,315 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 08:44:13,315 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 08:44:13,317 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 08:44:13,318 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 08:44:13,322 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 08:44:13,323 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 08:44:13,324 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 08:44:13,327 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 08:44:13,334 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 08:44:13,336 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 08:44:13,337 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 08:44:13,338 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 08:44:13,339 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 08:44:13,343 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 08:44:13,344 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 08:44:13,344 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 08:44:13,345 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 08:44:13,346 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 08:44:13,346 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 08:44:13,347 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 08:44:13,347 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 08:44:13,349 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 08:44:13,349 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 08:44:13,350 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 08:44:13,351 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 08:44:13,351 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 08:44:13,352 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 08:44:13,352 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 08:44:13,353 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 08:44:13,354 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 08:44:13,355 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2021-12-28 08:44:13,387 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 08:44:13,387 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 08:44:13,388 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 08:44:13,389 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 08:44:13,389 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-28 08:44:13,390 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-28 08:44:13,390 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 08:44:13,391 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 08:44:13,391 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 08:44:13,391 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 08:44:13,392 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-28 08:44:13,392 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 08:44:13,392 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 08:44:13,392 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-28 08:44:13,393 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-28 08:44:13,393 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-28 08:44:13,393 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-12-28 08:44:13,393 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 08:44:13,393 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 08:44:13,394 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-28 08:44:13,394 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 08:44:13,394 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 08:44:13,394 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-28 08:44:13,394 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 08:44:13,395 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 08:44:13,395 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-28 08:44:13,395 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-28 08:44:13,395 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 08:44:13,395 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-28 08:44:13,396 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-28 08:44:13,396 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 14cfbc3a2ba2bfe3a03d4d1ebff24b0baf1851f06dbbd2468b59e09322e4ce16 [2021-12-28 08:44:13,689 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 08:44:13,705 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 08:44:13,707 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 08:44:13,708 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 08:44:13,709 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 08:44:13,710 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-numeric/Fibonacci01-2.c [2021-12-28 08:44:13,773 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/857690684/36534fc7feed400fbb8c0bd780c3804b/FLAG55abcfae5 [2021-12-28 08:44:14,170 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 08:44:14,171 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-numeric/Fibonacci01-2.c [2021-12-28 08:44:14,180 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/857690684/36534fc7feed400fbb8c0bd780c3804b/FLAG55abcfae5 [2021-12-28 08:44:14,578 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/857690684/36534fc7feed400fbb8c0bd780c3804b [2021-12-28 08:44:14,580 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 08:44:14,581 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 08:44:14,582 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 08:44:14,582 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 08:44:14,586 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 08:44:14,587 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 08:44:14" (1/1) ... [2021-12-28 08:44:14,587 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24fdf79e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:44:14, skipping insertion in model container [2021-12-28 08:44:14,588 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 08:44:14" (1/1) ... [2021-12-28 08:44:14,593 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 08:44:14,604 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 08:44:14,727 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] [2021-12-28 08:44:14,727 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 08:44:14,733 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 08:44:14,745 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] [2021-12-28 08:44:14,745 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 08:44:14,755 INFO L208 MainTranslator]: Completed translation [2021-12-28 08:44:14,755 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:44:14 WrapperNode [2021-12-28 08:44:14,755 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 08:44:14,756 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 08:44:14,756 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 08:44:14,757 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 08:44:14,762 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:44:14" (1/1) ... [2021-12-28 08:44:14,766 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:44:14" (1/1) ... [2021-12-28 08:44:14,793 INFO L137 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 26 [2021-12-28 08:44:14,793 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 08:44:14,794 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 08:44:14,794 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 08:44:14,795 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 08:44:14,801 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:44:14" (1/1) ... [2021-12-28 08:44:14,801 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:44:14" (1/1) ... [2021-12-28 08:44:14,811 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:44:14" (1/1) ... [2021-12-28 08:44:14,811 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:44:14" (1/1) ... [2021-12-28 08:44:14,831 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:44:14" (1/1) ... [2021-12-28 08:44:14,833 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:44:14" (1/1) ... [2021-12-28 08:44:14,834 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:44:14" (1/1) ... [2021-12-28 08:44:14,836 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 08:44:14,837 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 08:44:14,838 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 08:44:14,838 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 08:44:14,839 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:44:14" (1/1) ... [2021-12-28 08:44:14,845 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 08:44:14,854 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 08:44:14,872 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) [2021-12-28 08:44:14,897 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 [2021-12-28 08:44:14,912 INFO L130 BoogieDeclarations]: Found specification of procedure fibonacci [2021-12-28 08:44:14,913 INFO L138 BoogieDeclarations]: Found implementation of procedure fibonacci [2021-12-28 08:44:14,913 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 08:44:14,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 08:44:14,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 08:44:14,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-28 08:44:14,967 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 08:44:14,969 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 08:44:15,097 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 08:44:15,116 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 08:44:15,117 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-28 08:44:15,118 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 08:44:15 BoogieIcfgContainer [2021-12-28 08:44:15,131 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 08:44:15,132 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-28 08:44:15,133 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-28 08:44:15,135 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-28 08:44:15,135 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 08:44:14" (1/3) ... [2021-12-28 08:44:15,136 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cde2055 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 08:44:15, skipping insertion in model container [2021-12-28 08:44:15,136 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:44:14" (2/3) ... [2021-12-28 08:44:15,136 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cde2055 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 08:44:15, skipping insertion in model container [2021-12-28 08:44:15,137 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 08:44:15" (3/3) ... [2021-12-28 08:44:15,138 INFO L111 eAbstractionObserver]: Analyzing ICFG Fibonacci01-2.c [2021-12-28 08:44:15,141 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-28 08:44:15,142 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-12-28 08:44:15,179 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-28 08:44:15,185 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 [2021-12-28 08:44:15,186 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-12-28 08:44:15,216 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) [2021-12-28 08:44:15,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-12-28 08:44:15,220 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:44:15,220 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 08:44:15,221 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-28 08:44:15,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:44:15,225 INFO L85 PathProgramCache]: Analyzing trace with hash 627182713, now seen corresponding path program 1 times [2021-12-28 08:44:15,236 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:44:15,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813424674] [2021-12-28 08:44:15,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:44:15,238 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:44:15,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:15,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:44:15,451 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:44:15,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813424674] [2021-12-28 08:44:15,452 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813424674] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 08:44:15,454 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 08:44:15,454 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-28 08:44:15,455 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792423744] [2021-12-28 08:44:15,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 08:44:15,459 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 08:44:15,459 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:44:15,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 08:44:15,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 08:44:15,491 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) [2021-12-28 08:44:15,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:44:15,588 INFO L93 Difference]: Finished difference Result 34 states and 38 transitions. [2021-12-28 08:44:15,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 08:44:15,594 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 [2021-12-28 08:44:15,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:44:15,600 INFO L225 Difference]: With dead ends: 34 [2021-12-28 08:44:15,601 INFO L226 Difference]: Without dead ends: 23 [2021-12-28 08:44:15,604 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 [2021-12-28 08:44:15,608 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 [2021-12-28 08:44:15,609 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] [2021-12-28 08:44:15,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2021-12-28 08:44:15,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2021-12-28 08:44:15,648 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) [2021-12-28 08:44:15,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2021-12-28 08:44:15,651 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 8 [2021-12-28 08:44:15,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:44:15,653 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2021-12-28 08:44:15,653 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) [2021-12-28 08:44:15,653 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2021-12-28 08:44:15,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-12-28 08:44:15,654 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:44:15,655 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 08:44:15,655 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-28 08:44:15,656 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-28 08:44:15,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:44:15,658 INFO L85 PathProgramCache]: Analyzing trace with hash -2032172335, now seen corresponding path program 1 times [2021-12-28 08:44:15,658 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:44:15,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953938202] [2021-12-28 08:44:15,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:44:15,659 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:44:15,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:15,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:44:15,718 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:44:15,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953938202] [2021-12-28 08:44:15,719 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953938202] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 08:44:15,719 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 08:44:15,720 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-28 08:44:15,720 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757098434] [2021-12-28 08:44:15,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 08:44:15,721 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-28 08:44:15,721 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:44:15,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-28 08:44:15,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 08:44:15,724 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) [2021-12-28 08:44:15,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:44:15,742 INFO L93 Difference]: Finished difference Result 25 states and 29 transitions. [2021-12-28 08:44:15,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-28 08:44:15,743 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 [2021-12-28 08:44:15,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:44:15,745 INFO L225 Difference]: With dead ends: 25 [2021-12-28 08:44:15,746 INFO L226 Difference]: Without dead ends: 23 [2021-12-28 08:44:15,749 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 [2021-12-28 08:44:15,752 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 [2021-12-28 08:44:15,752 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] [2021-12-28 08:44:15,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2021-12-28 08:44:15,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 21. [2021-12-28 08:44:15,766 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) [2021-12-28 08:44:15,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2021-12-28 08:44:15,769 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 9 [2021-12-28 08:44:15,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:44:15,770 INFO L470 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2021-12-28 08:44:15,770 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) [2021-12-28 08:44:15,770 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2021-12-28 08:44:15,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-12-28 08:44:15,771 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:44:15,772 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] [2021-12-28 08:44:15,772 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-28 08:44:15,774 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-28 08:44:15,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:44:15,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1173651673, now seen corresponding path program 1 times [2021-12-28 08:44:15,777 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:44:15,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4404842] [2021-12-28 08:44:15,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:44:15,778 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:44:15,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:15,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-28 08:44:15,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:15,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-28 08:44:15,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:15,935 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-28 08:44:15,935 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:44:15,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4404842] [2021-12-28 08:44:15,936 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4404842] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 08:44:15,936 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 08:44:15,936 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-28 08:44:15,936 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4999087] [2021-12-28 08:44:15,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 08:44:15,937 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 08:44:15,937 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:44:15,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 08:44:15,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-28 08:44:15,939 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) [2021-12-28 08:44:15,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:44:15,982 INFO L93 Difference]: Finished difference Result 37 states and 43 transitions. [2021-12-28 08:44:15,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 08:44:15,982 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 [2021-12-28 08:44:15,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:44:15,986 INFO L225 Difference]: With dead ends: 37 [2021-12-28 08:44:15,986 INFO L226 Difference]: Without dead ends: 35 [2021-12-28 08:44:15,987 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 [2021-12-28 08:44:15,988 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 [2021-12-28 08:44:15,988 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] [2021-12-28 08:44:15,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2021-12-28 08:44:15,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 30. [2021-12-28 08:44:15,994 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) [2021-12-28 08:44:15,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 36 transitions. [2021-12-28 08:44:15,995 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 36 transitions. Word has length 30 [2021-12-28 08:44:15,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:44:15,996 INFO L470 AbstractCegarLoop]: Abstraction has 30 states and 36 transitions. [2021-12-28 08:44:15,996 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) [2021-12-28 08:44:15,996 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 36 transitions. [2021-12-28 08:44:15,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-12-28 08:44:15,997 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:44:15,997 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] [2021-12-28 08:44:15,997 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-28 08:44:15,998 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-28 08:44:15,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:44:15,998 INFO L85 PathProgramCache]: Analyzing trace with hash 2034782143, now seen corresponding path program 1 times [2021-12-28 08:44:15,998 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:44:15,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536405749] [2021-12-28 08:44:15,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:44:15,999 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:44:16,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:16,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-28 08:44:16,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:16,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-28 08:44:16,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:16,073 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-28 08:44:16,073 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:44:16,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536405749] [2021-12-28 08:44:16,073 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536405749] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 08:44:16,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1415829724] [2021-12-28 08:44:16,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:44:16,074 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:44:16,074 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 08:44:16,076 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) [2021-12-28 08:44:16,110 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-28 08:44:16,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:16,121 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-28 08:44:16,130 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 08:44:16,262 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-12-28 08:44:16,262 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 08:44:16,442 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-12-28 08:44:16,442 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1415829724] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-28 08:44:16,442 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-28 08:44:16,443 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7, 7] total 15 [2021-12-28 08:44:16,443 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827985984] [2021-12-28 08:44:16,443 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-28 08:44:16,444 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-12-28 08:44:16,444 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:44:16,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-12-28 08:44:16,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2021-12-28 08:44:16,445 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) [2021-12-28 08:44:16,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:44:16,724 INFO L93 Difference]: Finished difference Result 91 states and 129 transitions. [2021-12-28 08:44:16,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-28 08:44:16,725 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 [2021-12-28 08:44:16,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:44:16,727 INFO L225 Difference]: With dead ends: 91 [2021-12-28 08:44:16,727 INFO L226 Difference]: Without dead ends: 65 [2021-12-28 08:44:16,728 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 [2021-12-28 08:44:16,729 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 116 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-28 08:44:16,729 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 93 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-28 08:44:16,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2021-12-28 08:44:16,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 53. [2021-12-28 08:44:16,750 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) [2021-12-28 08:44:16,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 68 transitions. [2021-12-28 08:44:16,754 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 68 transitions. Word has length 31 [2021-12-28 08:44:16,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:44:16,755 INFO L470 AbstractCegarLoop]: Abstraction has 53 states and 68 transitions. [2021-12-28 08:44:16,755 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) [2021-12-28 08:44:16,756 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 68 transitions. [2021-12-28 08:44:16,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-12-28 08:44:16,757 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:44:16,758 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] [2021-12-28 08:44:16,786 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-28 08:44:16,983 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 [2021-12-28 08:44:16,983 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-28 08:44:16,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:44:16,984 INFO L85 PathProgramCache]: Analyzing trace with hash -603092359, now seen corresponding path program 2 times [2021-12-28 08:44:16,984 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:44:16,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935495952] [2021-12-28 08:44:16,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:44:16,984 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:44:16,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:17,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-28 08:44:17,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:17,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 08:44:17,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:17,059 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-12-28 08:44:17,059 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:44:17,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935495952] [2021-12-28 08:44:17,059 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935495952] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 08:44:17,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [892544109] [2021-12-28 08:44:17,060 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-28 08:44:17,060 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:44:17,060 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 08:44:17,061 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) [2021-12-28 08:44:17,063 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-28 08:44:17,093 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-28 08:44:17,093 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-28 08:44:17,094 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-28 08:44:17,095 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 08:44:17,156 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-12-28 08:44:17,156 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-28 08:44:17,157 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [892544109] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 08:44:17,157 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-28 08:44:17,157 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2021-12-28 08:44:17,157 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954778620] [2021-12-28 08:44:17,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 08:44:17,158 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 08:44:17,158 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:44:17,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 08:44:17,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-12-28 08:44:17,159 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) [2021-12-28 08:44:17,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:44:17,178 INFO L93 Difference]: Finished difference Result 61 states and 76 transitions. [2021-12-28 08:44:17,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 08:44:17,178 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 [2021-12-28 08:44:17,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:44:17,180 INFO L225 Difference]: With dead ends: 61 [2021-12-28 08:44:17,180 INFO L226 Difference]: Without dead ends: 60 [2021-12-28 08:44:17,180 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 [2021-12-28 08:44:17,181 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 [2021-12-28 08:44:17,181 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] [2021-12-28 08:44:17,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2021-12-28 08:44:17,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 55. [2021-12-28 08:44:17,188 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) [2021-12-28 08:44:17,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 70 transitions. [2021-12-28 08:44:17,189 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 70 transitions. Word has length 25 [2021-12-28 08:44:17,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:44:17,189 INFO L470 AbstractCegarLoop]: Abstraction has 55 states and 70 transitions. [2021-12-28 08:44:17,190 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) [2021-12-28 08:44:17,190 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 70 transitions. [2021-12-28 08:44:17,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-12-28 08:44:17,190 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:44:17,191 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 08:44:17,215 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-28 08:44:17,407 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 [2021-12-28 08:44:17,408 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting fibonacciErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-28 08:44:17,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:44:17,408 INFO L85 PathProgramCache]: Analyzing trace with hash -1515993891, now seen corresponding path program 1 times [2021-12-28 08:44:17,408 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:44:17,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146890865] [2021-12-28 08:44:17,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:44:17,409 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:44:17,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:17,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-28 08:44:17,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:17,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 08:44:17,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:17,493 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-12-28 08:44:17,498 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:44:17,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146890865] [2021-12-28 08:44:17,499 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146890865] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 08:44:17,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [528076219] [2021-12-28 08:44:17,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:44:17,500 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:44:17,502 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 08:44:17,503 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) [2021-12-28 08:44:17,505 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-28 08:44:17,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:17,534 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-28 08:44:17,535 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 08:44:17,597 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-12-28 08:44:17,597 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 08:44:17,666 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-12-28 08:44:17,666 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [528076219] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-28 08:44:17,667 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-28 08:44:17,667 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 11 [2021-12-28 08:44:17,667 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263976782] [2021-12-28 08:44:17,667 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-28 08:44:17,668 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-28 08:44:17,668 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:44:17,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-28 08:44:17,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2021-12-28 08:44:17,669 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) [2021-12-28 08:44:17,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:44:17,749 INFO L93 Difference]: Finished difference Result 70 states and 94 transitions. [2021-12-28 08:44:17,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-28 08:44:17,750 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.272727272727273) internal successors, (36), 12 states have internal predecessors, (36), 4 states have call successors, (5), 1 states have call predecessors, (5), 5 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 26 [2021-12-28 08:44:17,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:44:17,751 INFO L225 Difference]: With dead ends: 70 [2021-12-28 08:44:17,752 INFO L226 Difference]: Without dead ends: 69 [2021-12-28 08:44:17,752 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2021-12-28 08:44:17,753 INFO L933 BasicCegarLoop]: 28 mSDtfsCounter, 14 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-28 08:44:17,753 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 210 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-28 08:44:17,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2021-12-28 08:44:17,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 67. [2021-12-28 08:44:17,761 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) [2021-12-28 08:44:17,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 91 transitions. [2021-12-28 08:44:17,762 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 91 transitions. Word has length 26 [2021-12-28 08:44:17,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:44:17,762 INFO L470 AbstractCegarLoop]: Abstraction has 67 states and 91 transitions. [2021-12-28 08:44:17,763 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) [2021-12-28 08:44:17,763 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 91 transitions. [2021-12-28 08:44:17,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-12-28 08:44:17,764 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:44:17,764 INFO L514 BasicCegarLoop]: trace histogram [5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 08:44:17,783 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-28 08:44:17,975 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 [2021-12-28 08:44:17,976 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-28 08:44:17,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:44:17,976 INFO L85 PathProgramCache]: Analyzing trace with hash -263295008, now seen corresponding path program 1 times [2021-12-28 08:44:17,976 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:44:17,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868973035] [2021-12-28 08:44:17,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:44:17,977 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:44:17,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:18,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-28 08:44:18,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:18,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:18,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:18,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:18,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:18,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-28 08:44:18,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:18,114 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-12-28 08:44:18,114 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:44:18,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868973035] [2021-12-28 08:44:18,115 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868973035] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 08:44:18,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1105080759] [2021-12-28 08:44:18,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:44:18,120 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:44:18,120 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 08:44:18,122 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) [2021-12-28 08:44:18,123 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-28 08:44:18,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:18,160 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-28 08:44:18,162 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 08:44:18,280 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2021-12-28 08:44:18,281 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 08:44:18,486 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-12-28 08:44:18,487 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1105080759] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-28 08:44:18,487 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-28 08:44:18,487 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 7] total 13 [2021-12-28 08:44:18,487 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459285385] [2021-12-28 08:44:18,487 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-28 08:44:18,488 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-12-28 08:44:18,488 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:44:18,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-12-28 08:44:18,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2021-12-28 08:44:18,489 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) [2021-12-28 08:44:18,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:44:18,644 INFO L93 Difference]: Finished difference Result 138 states and 205 transitions. [2021-12-28 08:44:18,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-12-28 08:44:18,644 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 14 states have internal predecessors, (37), 3 states have call successors, (4), 1 states have call predecessors, (4), 4 states have return successors, (8), 8 states have call predecessors, (8), 3 states have call successors, (8) Word has length 45 [2021-12-28 08:44:18,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:44:18,646 INFO L225 Difference]: With dead ends: 138 [2021-12-28 08:44:18,646 INFO L226 Difference]: Without dead ends: 137 [2021-12-28 08:44:18,647 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-28 08:44:18,648 INFO L933 BasicCegarLoop]: 25 mSDtfsCounter, 24 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-28 08:44:18,648 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 141 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-28 08:44:18,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2021-12-28 08:44:18,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 99. [2021-12-28 08:44:18,662 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) [2021-12-28 08:44:18,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 160 transitions. [2021-12-28 08:44:18,665 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 160 transitions. Word has length 45 [2021-12-28 08:44:18,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:44:18,665 INFO L470 AbstractCegarLoop]: Abstraction has 99 states and 160 transitions. [2021-12-28 08:44:18,665 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) [2021-12-28 08:44:18,665 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 160 transitions. [2021-12-28 08:44:18,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-12-28 08:44:18,667 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:44:18,667 INFO L514 BasicCegarLoop]: trace histogram [7, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1] [2021-12-28 08:44:18,688 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-28 08:44:18,883 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 [2021-12-28 08:44:18,883 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting fibonacciErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-28 08:44:18,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:44:18,884 INFO L85 PathProgramCache]: Analyzing trace with hash -904137505, now seen corresponding path program 1 times [2021-12-28 08:44:18,884 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:44:18,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114629435] [2021-12-28 08:44:18,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:44:18,885 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:44:18,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:18,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-28 08:44:18,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:18,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:18,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:18,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:18,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:18,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-28 08:44:18,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:18,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 08:44:18,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:18,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-28 08:44:18,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:18,999 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2021-12-28 08:44:18,999 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:44:18,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114629435] [2021-12-28 08:44:18,999 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114629435] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 08:44:18,999 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 08:44:18,999 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-28 08:44:19,000 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548621518] [2021-12-28 08:44:19,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 08:44:19,001 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 08:44:19,001 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:44:19,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 08:44:19,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-28 08:44:19,002 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) [2021-12-28 08:44:19,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:44:19,027 INFO L93 Difference]: Finished difference Result 112 states and 174 transitions. [2021-12-28 08:44:19,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 08:44:19,031 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 64 [2021-12-28 08:44:19,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:44:19,036 INFO L225 Difference]: With dead ends: 112 [2021-12-28 08:44:19,036 INFO L226 Difference]: Without dead ends: 111 [2021-12-28 08:44:19,038 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 [2021-12-28 08:44:19,039 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 [2021-12-28 08:44:19,039 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] [2021-12-28 08:44:19,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2021-12-28 08:44:19,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 99. [2021-12-28 08:44:19,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 77 states have (on average 1.077922077922078) internal successors, (83), 76 states have internal predecessors, (83), 11 states have call successors, (11), 2 states have call predecessors, (11), 9 states have return successors, (66), 20 states have call predecessors, (66), 10 states have call successors, (66) [2021-12-28 08:44:19,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 160 transitions. [2021-12-28 08:44:19,053 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 160 transitions. Word has length 64 [2021-12-28 08:44:19,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:44:19,054 INFO L470 AbstractCegarLoop]: Abstraction has 99 states and 160 transitions. [2021-12-28 08:44:19,054 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) [2021-12-28 08:44:19,054 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 160 transitions. [2021-12-28 08:44:19,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-12-28 08:44:19,062 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:44:19,062 INFO L514 BasicCegarLoop]: trace histogram [7, 6, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1] [2021-12-28 08:44:19,062 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-28 08:44:19,062 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting fibonacciErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-28 08:44:19,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:44:19,063 INFO L85 PathProgramCache]: Analyzing trace with hash 53232581, now seen corresponding path program 2 times [2021-12-28 08:44:19,063 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:44:19,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786963796] [2021-12-28 08:44:19,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:44:19,063 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:44:19,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:19,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-28 08:44:19,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:19,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:19,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:19,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:19,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:19,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:19,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:19,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-28 08:44:19,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:19,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-28 08:44:19,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:19,123 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2021-12-28 08:44:19,123 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:44:19,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786963796] [2021-12-28 08:44:19,123 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786963796] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 08:44:19,124 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 08:44:19,124 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-28 08:44:19,124 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24845103] [2021-12-28 08:44:19,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 08:44:19,124 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 08:44:19,124 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:44:19,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 08:44:19,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-28 08:44:19,125 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) [2021-12-28 08:44:19,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:44:19,143 INFO L93 Difference]: Finished difference Result 112 states and 174 transitions. [2021-12-28 08:44:19,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 08:44:19,144 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 65 [2021-12-28 08:44:19,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:44:19,145 INFO L225 Difference]: With dead ends: 112 [2021-12-28 08:44:19,145 INFO L226 Difference]: Without dead ends: 111 [2021-12-28 08:44:19,146 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 [2021-12-28 08:44:19,146 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 6 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 08:44:19,146 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 65 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 08:44:19,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2021-12-28 08:44:19,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 99. [2021-12-28 08:44:19,156 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) [2021-12-28 08:44:19,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 160 transitions. [2021-12-28 08:44:19,158 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 160 transitions. Word has length 65 [2021-12-28 08:44:19,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:44:19,158 INFO L470 AbstractCegarLoop]: Abstraction has 99 states and 160 transitions. [2021-12-28 08:44:19,158 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) [2021-12-28 08:44:19,158 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 160 transitions. [2021-12-28 08:44:19,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-12-28 08:44:19,160 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:44:19,160 INFO L514 BasicCegarLoop]: trace histogram [19, 17, 13, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 4, 1, 1, 1, 1, 1] [2021-12-28 08:44:19,160 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-28 08:44:19,160 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-28 08:44:19,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:44:19,161 INFO L85 PathProgramCache]: Analyzing trace with hash -1501153665, now seen corresponding path program 2 times [2021-12-28 08:44:19,161 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:44:19,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723071830] [2021-12-28 08:44:19,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:44:19,161 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:44:19,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:19,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-28 08:44:19,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:19,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:19,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:19,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:19,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:19,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-28 08:44:19,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:19,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 08:44:19,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:19,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-28 08:44:19,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:19,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:19,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:19,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:19,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:19,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-28 08:44:19,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:19,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:19,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:19,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:19,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:19,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:19,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:19,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-28 08:44:19,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:19,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:19,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:19,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:19,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:19,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:19,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:19,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-28 08:44:19,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:19,374 INFO L134 CoverageAnalysis]: Checked inductivity of 1021 backedges. 59 proven. 270 refuted. 0 times theorem prover too weak. 692 trivial. 0 not checked. [2021-12-28 08:44:19,374 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:44:19,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723071830] [2021-12-28 08:44:19,375 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723071830] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 08:44:19,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1940718058] [2021-12-28 08:44:19,375 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-28 08:44:19,375 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:44:19,375 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 08:44:19,376 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) [2021-12-28 08:44:19,383 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-28 08:44:19,447 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-28 08:44:19,448 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-28 08:44:19,449 INFO L263 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 12 conjunts are in the unsatisfiable core [2021-12-28 08:44:19,453 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 08:44:19,802 INFO L134 CoverageAnalysis]: Checked inductivity of 1021 backedges. 593 proven. 113 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked. [2021-12-28 08:44:19,803 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 08:44:20,426 INFO L134 CoverageAnalysis]: Checked inductivity of 1021 backedges. 75 proven. 438 refuted. 0 times theorem prover too weak. 508 trivial. 0 not checked. [2021-12-28 08:44:20,426 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1940718058] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-28 08:44:20,426 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-28 08:44:20,427 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 10, 12] total 17 [2021-12-28 08:44:20,427 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899667101] [2021-12-28 08:44:20,427 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-28 08:44:20,428 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-12-28 08:44:20,428 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:44:20,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-12-28 08:44:20,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=216, Unknown=0, NotChecked=0, Total=272 [2021-12-28 08:44:20,429 INFO L87 Difference]: Start difference. First operand 99 states and 160 transitions. Second operand has 17 states, 17 states have (on average 5.470588235294118) internal successors, (93), 17 states have internal predecessors, (93), 11 states have call successors, (17), 3 states have call predecessors, (17), 6 states have return successors, (18), 6 states have call predecessors, (18), 10 states have call successors, (18) [2021-12-28 08:44:20,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:44:20,615 INFO L93 Difference]: Finished difference Result 177 states and 305 transitions. [2021-12-28 08:44:20,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-28 08:44:20,616 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.470588235294118) internal successors, (93), 17 states have internal predecessors, (93), 11 states have call successors, (17), 3 states have call predecessors, (17), 6 states have return successors, (18), 6 states have call predecessors, (18), 10 states have call successors, (18) Word has length 175 [2021-12-28 08:44:20,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:44:20,617 INFO L225 Difference]: With dead ends: 177 [2021-12-28 08:44:20,617 INFO L226 Difference]: Without dead ends: 82 [2021-12-28 08:44:20,619 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 399 GetRequests, 372 SyntacticMatches, 5 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=157, Invalid=395, Unknown=0, NotChecked=0, Total=552 [2021-12-28 08:44:20,620 INFO L933 BasicCegarLoop]: 16 mSDtfsCounter, 175 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-28 08:44:20,621 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 73 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-28 08:44:20,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2021-12-28 08:44:20,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 79. [2021-12-28 08:44:20,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 62 states have (on average 1.096774193548387) internal successors, (68), 60 states have internal predecessors, (68), 8 states have call successors, (8), 4 states have call predecessors, (8), 7 states have return successors, (27), 14 states have call predecessors, (27), 7 states have call successors, (27) [2021-12-28 08:44:20,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 103 transitions. [2021-12-28 08:44:20,633 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 103 transitions. Word has length 175 [2021-12-28 08:44:20,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:44:20,634 INFO L470 AbstractCegarLoop]: Abstraction has 79 states and 103 transitions. [2021-12-28 08:44:20,634 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.470588235294118) internal successors, (93), 17 states have internal predecessors, (93), 11 states have call successors, (17), 3 states have call predecessors, (17), 6 states have return successors, (18), 6 states have call predecessors, (18), 10 states have call successors, (18) [2021-12-28 08:44:20,634 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 103 transitions. [2021-12-28 08:44:20,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-12-28 08:44:20,635 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:44:20,635 INFO L514 BasicCegarLoop]: trace histogram [11, 10, 9, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 2, 1, 1, 1, 1, 1] [2021-12-28 08:44:20,661 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-12-28 08:44:20,851 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 [2021-12-28 08:44:20,852 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-28 08:44:20,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:44:20,852 INFO L85 PathProgramCache]: Analyzing trace with hash -2140148623, now seen corresponding path program 3 times [2021-12-28 08:44:20,852 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:44:20,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812518673] [2021-12-28 08:44:20,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:44:20,852 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:44:20,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:20,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-28 08:44:20,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:20,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:20,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:20,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:20,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:20,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:20,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:20,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-28 08:44:20,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:20,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-28 08:44:20,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:20,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:20,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:21,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:21,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:21,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:21,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:21,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-28 08:44:21,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:21,042 INFO L134 CoverageAnalysis]: Checked inductivity of 332 backedges. 82 proven. 129 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2021-12-28 08:44:21,042 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:44:21,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812518673] [2021-12-28 08:44:21,042 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812518673] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 08:44:21,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1134781924] [2021-12-28 08:44:21,042 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-28 08:44:21,042 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:44:21,043 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 08:44:21,044 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) [2021-12-28 08:44:21,045 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-28 08:44:21,094 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2021-12-28 08:44:21,094 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-28 08:44:21,095 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-28 08:44:21,097 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 08:44:21,276 INFO L134 CoverageAnalysis]: Checked inductivity of 332 backedges. 108 proven. 89 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2021-12-28 08:44:21,277 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 08:44:21,689 INFO L134 CoverageAnalysis]: Checked inductivity of 332 backedges. 108 proven. 92 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2021-12-28 08:44:21,689 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1134781924] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-28 08:44:21,689 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-28 08:44:21,689 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 9, 11] total 21 [2021-12-28 08:44:21,689 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130346987] [2021-12-28 08:44:21,690 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-28 08:44:21,690 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-12-28 08:44:21,690 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:44:21,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-12-28 08:44:21,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=307, Unknown=0, NotChecked=0, Total=420 [2021-12-28 08:44:21,691 INFO L87 Difference]: Start difference. First operand 79 states and 103 transitions. Second operand has 21 states, 21 states have (on average 4.857142857142857) internal successors, (102), 21 states have internal predecessors, (102), 11 states have call successors, (18), 1 states have call predecessors, (18), 7 states have return successors, (20), 15 states have call predecessors, (20), 11 states have call successors, (20) [2021-12-28 08:44:21,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:44:21,890 INFO L93 Difference]: Finished difference Result 161 states and 233 transitions. [2021-12-28 08:44:21,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-28 08:44:21,890 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 4.857142857142857) internal successors, (102), 21 states have internal predecessors, (102), 11 states have call successors, (18), 1 states have call predecessors, (18), 7 states have return successors, (20), 15 states have call predecessors, (20), 11 states have call successors, (20) Word has length 104 [2021-12-28 08:44:21,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:44:21,891 INFO L225 Difference]: With dead ends: 161 [2021-12-28 08:44:21,891 INFO L226 Difference]: Without dead ends: 86 [2021-12-28 08:44:21,892 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 220 SyntacticMatches, 2 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 198 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=238, Invalid=574, Unknown=0, NotChecked=0, Total=812 [2021-12-28 08:44:21,893 INFO L933 BasicCegarLoop]: 23 mSDtfsCounter, 164 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-28 08:44:21,893 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [168 Valid, 88 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-28 08:44:21,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2021-12-28 08:44:21,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 73. [2021-12-28 08:44:21,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 57 states have (on average 1.105263157894737) internal successors, (63), 56 states have internal predecessors, (63), 8 states have call successors, (8), 5 states have call predecessors, (8), 6 states have return successors, (17), 11 states have call predecessors, (17), 7 states have call successors, (17) [2021-12-28 08:44:21,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 88 transitions. [2021-12-28 08:44:21,899 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 88 transitions. Word has length 104 [2021-12-28 08:44:21,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:44:21,899 INFO L470 AbstractCegarLoop]: Abstraction has 73 states and 88 transitions. [2021-12-28 08:44:21,899 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 4.857142857142857) internal successors, (102), 21 states have internal predecessors, (102), 11 states have call successors, (18), 1 states have call predecessors, (18), 7 states have return successors, (20), 15 states have call predecessors, (20), 11 states have call successors, (20) [2021-12-28 08:44:21,900 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 88 transitions. [2021-12-28 08:44:21,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-12-28 08:44:21,900 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:44:21,900 INFO L514 BasicCegarLoop]: trace histogram [10, 9, 8, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1] [2021-12-28 08:44:21,926 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-12-28 08:44:22,115 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 [2021-12-28 08:44:22,116 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-28 08:44:22,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:44:22,116 INFO L85 PathProgramCache]: Analyzing trace with hash 2053491142, now seen corresponding path program 4 times [2021-12-28 08:44:22,116 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:44:22,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393527406] [2021-12-28 08:44:22,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:44:22,116 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:44:22,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:22,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-28 08:44:22,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:22,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:22,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:22,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:22,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:22,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:22,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:22,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:22,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:22,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-28 08:44:22,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:22,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-28 08:44:22,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:22,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-28 08:44:22,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:22,253 INFO L134 CoverageAnalysis]: Checked inductivity of 251 backedges. 109 proven. 40 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2021-12-28 08:44:22,253 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:44:22,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393527406] [2021-12-28 08:44:22,253 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393527406] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 08:44:22,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1733483331] [2021-12-28 08:44:22,254 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-12-28 08:44:22,254 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:44:22,254 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 08:44:22,255 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) [2021-12-28 08:44:22,288 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-28 08:44:22,303 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-12-28 08:44:22,303 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-28 08:44:22,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-28 08:44:22,307 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 08:44:22,455 INFO L134 CoverageAnalysis]: Checked inductivity of 251 backedges. 140 proven. 37 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2021-12-28 08:44:22,455 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 08:44:22,935 INFO L134 CoverageAnalysis]: Checked inductivity of 251 backedges. 102 proven. 62 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2021-12-28 08:44:22,935 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1733483331] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-28 08:44:22,935 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-28 08:44:22,936 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 11] total 17 [2021-12-28 08:44:22,936 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714793726] [2021-12-28 08:44:22,936 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-28 08:44:22,936 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-12-28 08:44:22,936 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:44:22,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-12-28 08:44:22,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2021-12-28 08:44:22,937 INFO L87 Difference]: Start difference. First operand 73 states and 88 transitions. Second operand has 17 states, 17 states have (on average 4.823529411764706) internal successors, (82), 17 states have internal predecessors, (82), 11 states have call successors, (14), 2 states have call predecessors, (14), 6 states have return successors, (16), 6 states have call predecessors, (16), 11 states have call successors, (16) [2021-12-28 08:44:23,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:44:23,041 INFO L93 Difference]: Finished difference Result 132 states and 162 transitions. [2021-12-28 08:44:23,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-28 08:44:23,042 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 4.823529411764706) internal successors, (82), 17 states have internal predecessors, (82), 11 states have call successors, (14), 2 states have call predecessors, (14), 6 states have return successors, (16), 6 states have call predecessors, (16), 11 states have call successors, (16) Word has length 91 [2021-12-28 08:44:23,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:44:23,043 INFO L225 Difference]: With dead ends: 132 [2021-12-28 08:44:23,043 INFO L226 Difference]: Without dead ends: 65 [2021-12-28 08:44:23,043 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 192 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=121, Invalid=259, Unknown=0, NotChecked=0, Total=380 [2021-12-28 08:44:23,044 INFO L933 BasicCegarLoop]: 28 mSDtfsCounter, 75 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-28 08:44:23,044 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [77 Valid, 93 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-28 08:44:23,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2021-12-28 08:44:23,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2021-12-28 08:44:23,047 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) [2021-12-28 08:44:23,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 73 transitions. [2021-12-28 08:44:23,048 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 73 transitions. Word has length 91 [2021-12-28 08:44:23,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:44:23,048 INFO L470 AbstractCegarLoop]: Abstraction has 65 states and 73 transitions. [2021-12-28 08:44:23,049 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 4.823529411764706) internal successors, (82), 17 states have internal predecessors, (82), 11 states have call successors, (14), 2 states have call predecessors, (14), 6 states have return successors, (16), 6 states have call predecessors, (16), 11 states have call successors, (16) [2021-12-28 08:44:23,049 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 73 transitions. [2021-12-28 08:44:23,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-12-28 08:44:23,050 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:44:23,050 INFO L514 BasicCegarLoop]: trace histogram [10, 8, 8, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 1, 1, 1, 1, 1] [2021-12-28 08:44:23,075 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-12-28 08:44:23,250 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 [2021-12-28 08:44:23,251 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting fibonacciErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-28 08:44:23,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:44:23,251 INFO L85 PathProgramCache]: Analyzing trace with hash -486789354, now seen corresponding path program 3 times [2021-12-28 08:44:23,251 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:44:23,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616792368] [2021-12-28 08:44:23,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:44:23,252 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:44:23,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:23,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-28 08:44:23,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:23,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:23,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:23,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:23,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:23,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:23,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:23,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-28 08:44:23,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:23,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-28 08:44:23,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:23,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:23,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:23,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:23,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:23,366 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 38 proven. 23 refuted. 0 times theorem prover too weak. 185 trivial. 0 not checked. [2021-12-28 08:44:23,366 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:44:23,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616792368] [2021-12-28 08:44:23,366 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616792368] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 08:44:23,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2021874930] [2021-12-28 08:44:23,366 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-28 08:44:23,367 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:44:23,367 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 08:44:23,368 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) [2021-12-28 08:44:23,378 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-12-28 08:44:23,422 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-12-28 08:44:23,423 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-28 08:44:23,423 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-28 08:44:23,428 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 08:44:23,582 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 62 proven. 5 refuted. 0 times theorem prover too weak. 179 trivial. 0 not checked. [2021-12-28 08:44:23,582 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 08:44:23,798 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 62 proven. 5 refuted. 0 times theorem prover too weak. 179 trivial. 0 not checked. [2021-12-28 08:44:23,798 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2021874930] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-28 08:44:23,798 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-28 08:44:23,799 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 7] total 14 [2021-12-28 08:44:23,799 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3814877] [2021-12-28 08:44:23,799 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-28 08:44:23,800 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-12-28 08:44:23,800 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:44:23,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-12-28 08:44:23,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2021-12-28 08:44:23,801 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) [2021-12-28 08:44:23,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:44:23,870 INFO L93 Difference]: Finished difference Result 65 states and 73 transitions. [2021-12-28 08:44:23,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-28 08:44:23,870 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 3.7142857142857144) internal successors, (52), 15 states have internal predecessors, (52), 5 states have call successors, (7), 1 states have call predecessors, (7), 4 states have return successors, (10), 9 states have call predecessors, (10), 5 states have call successors, (10) Word has length 91 [2021-12-28 08:44:23,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:44:23,871 INFO L225 Difference]: With dead ends: 65 [2021-12-28 08:44:23,871 INFO L226 Difference]: Without dead ends: 64 [2021-12-28 08:44:23,872 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2021-12-28 08:44:23,872 INFO L933 BasicCegarLoop]: 27 mSDtfsCounter, 14 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 08:44:23,872 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 155 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 08:44:23,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2021-12-28 08:44:23,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2021-12-28 08:44:23,876 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) [2021-12-28 08:44:23,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 72 transitions. [2021-12-28 08:44:23,876 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 72 transitions. Word has length 91 [2021-12-28 08:44:23,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:44:23,877 INFO L470 AbstractCegarLoop]: Abstraction has 64 states and 72 transitions. [2021-12-28 08:44:23,877 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) [2021-12-28 08:44:23,877 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 72 transitions. [2021-12-28 08:44:23,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-12-28 08:44:23,878 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:44:23,878 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] [2021-12-28 08:44:23,907 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-12-28 08:44:24,103 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 [2021-12-28 08:44:24,103 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-28 08:44:24,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:44:24,104 INFO L85 PathProgramCache]: Analyzing trace with hash 472435048, now seen corresponding path program 5 times [2021-12-28 08:44:24,104 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:44:24,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505575350] [2021-12-28 08:44:24,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:44:24,104 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:44:24,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:24,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-28 08:44:24,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:24,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:24,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:24,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:24,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:24,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:24,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:24,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:24,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:24,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-28 08:44:24,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:24,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-28 08:44:24,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:24,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:24,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:24,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:24,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:24,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-28 08:44:24,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:24,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:24,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:24,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:24,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:24,249 INFO L134 CoverageAnalysis]: Checked inductivity of 532 backedges. 214 proven. 68 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2021-12-28 08:44:24,249 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:44:24,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505575350] [2021-12-28 08:44:24,250 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505575350] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 08:44:24,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1338117495] [2021-12-28 08:44:24,250 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-12-28 08:44:24,250 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:44:24,250 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 08:44:24,251 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) [2021-12-28 08:44:24,282 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-12-28 08:44:24,319 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2021-12-28 08:44:24,320 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-28 08:44:24,321 INFO L263 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 12 conjunts are in the unsatisfiable core [2021-12-28 08:44:24,322 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 08:44:24,538 INFO L134 CoverageAnalysis]: Checked inductivity of 532 backedges. 177 proven. 137 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2021-12-28 08:44:24,538 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 08:44:25,090 INFO L134 CoverageAnalysis]: Checked inductivity of 532 backedges. 181 proven. 142 refuted. 0 times theorem prover too weak. 209 trivial. 0 not checked. [2021-12-28 08:44:25,090 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1338117495] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-28 08:44:25,091 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-28 08:44:25,091 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 13] total 20 [2021-12-28 08:44:25,091 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846099459] [2021-12-28 08:44:25,091 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-28 08:44:25,091 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-12-28 08:44:25,091 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:44:25,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-12-28 08:44:25,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=283, Unknown=0, NotChecked=0, Total=380 [2021-12-28 08:44:25,092 INFO L87 Difference]: Start difference. First operand 64 states and 72 transitions. Second operand has 20 states, 20 states have (on average 5.2) internal successors, (104), 20 states have internal predecessors, (104), 12 states have call successors, (18), 1 states have call predecessors, (18), 7 states have return successors, (20), 12 states have call predecessors, (20), 12 states have call successors, (20) [2021-12-28 08:44:25,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:44:25,300 INFO L93 Difference]: Finished difference Result 131 states and 156 transitions. [2021-12-28 08:44:25,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-28 08:44:25,300 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 5.2) internal successors, (104), 20 states have internal predecessors, (104), 12 states have call successors, (18), 1 states have call predecessors, (18), 7 states have return successors, (20), 12 states have call predecessors, (20), 12 states have call successors, (20) Word has length 129 [2021-12-28 08:44:25,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:44:25,301 INFO L225 Difference]: With dead ends: 131 [2021-12-28 08:44:25,301 INFO L226 Difference]: Without dead ends: 73 [2021-12-28 08:44:25,302 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 271 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2021-12-28 08:44:25,302 INFO L933 BasicCegarLoop]: 34 mSDtfsCounter, 119 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-28 08:44:25,303 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 140 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-28 08:44:25,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2021-12-28 08:44:25,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 70. [2021-12-28 08:44:25,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 56 states have (on average 1.0535714285714286) internal successors, (59), 54 states have internal predecessors, (59), 8 states have call successors, (8), 7 states have call predecessors, (8), 5 states have return successors, (13), 8 states have call predecessors, (13), 7 states have call successors, (13) [2021-12-28 08:44:25,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 80 transitions. [2021-12-28 08:44:25,307 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 80 transitions. Word has length 129 [2021-12-28 08:44:25,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:44:25,308 INFO L470 AbstractCegarLoop]: Abstraction has 70 states and 80 transitions. [2021-12-28 08:44:25,308 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 5.2) internal successors, (104), 20 states have internal predecessors, (104), 12 states have call successors, (18), 1 states have call predecessors, (18), 7 states have return successors, (20), 12 states have call predecessors, (20), 12 states have call successors, (20) [2021-12-28 08:44:25,308 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 80 transitions. [2021-12-28 08:44:25,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2021-12-28 08:44:25,311 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:44:25,311 INFO L514 BasicCegarLoop]: trace histogram [30, 27, 24, 15, 15, 15, 15, 14, 14, 14, 14, 14, 13, 13, 12, 12, 9, 6, 1, 1, 1, 1, 1] [2021-12-28 08:44:25,337 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-12-28 08:44:25,535 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 [2021-12-28 08:44:25,535 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-28 08:44:25,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:44:25,536 INFO L85 PathProgramCache]: Analyzing trace with hash 1264446128, now seen corresponding path program 6 times [2021-12-28 08:44:25,536 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:44:25,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974497808] [2021-12-28 08:44:25,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:44:25,536 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:44:25,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:25,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-28 08:44:25,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:25,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:25,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:25,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:25,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:25,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:25,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:25,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:25,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:25,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-28 08:44:25,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:25,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-28 08:44:25,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:25,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:25,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:25,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:25,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:25,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-28 08:44:25,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:25,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:25,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:25,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:25,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:25,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:25,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:25,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:25,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:25,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-28 08:44:25,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:25,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-28 08:44:25,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:25,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:25,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:25,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:25,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:25,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-12-28 08:44:25,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:25,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:25,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:25,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:25,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:25,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:25,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:25,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:25,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:25,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-28 08:44:25,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:25,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-28 08:44:25,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:25,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:25,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:25,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:25,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:25,842 INFO L134 CoverageAnalysis]: Checked inductivity of 2749 backedges. 295 proven. 801 refuted. 0 times theorem prover too weak. 1653 trivial. 0 not checked. [2021-12-28 08:44:25,842 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:44:25,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974497808] [2021-12-28 08:44:25,842 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974497808] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 08:44:25,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [168659818] [2021-12-28 08:44:25,842 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-12-28 08:44:25,843 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:44:25,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 08:44:25,844 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) [2021-12-28 08:44:25,846 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-12-28 08:44:25,943 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 18 check-sat command(s) [2021-12-28 08:44:25,943 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-28 08:44:25,945 INFO L263 TraceCheckSpWp]: Trace formula consists of 486 conjuncts, 16 conjunts are in the unsatisfiable core [2021-12-28 08:44:25,948 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 08:44:26,400 INFO L134 CoverageAnalysis]: Checked inductivity of 2749 backedges. 574 proven. 613 refuted. 0 times theorem prover too weak. 1562 trivial. 0 not checked. [2021-12-28 08:44:26,400 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 08:44:27,259 INFO L134 CoverageAnalysis]: Checked inductivity of 2749 backedges. 574 proven. 629 refuted. 0 times theorem prover too weak. 1546 trivial. 0 not checked. [2021-12-28 08:44:27,259 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [168659818] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-28 08:44:27,259 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-28 08:44:27,260 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 12, 17] total 28 [2021-12-28 08:44:27,260 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356584698] [2021-12-28 08:44:27,260 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-28 08:44:27,261 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-12-28 08:44:27,261 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:44:27,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-12-28 08:44:27,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=177, Invalid=579, Unknown=0, NotChecked=0, Total=756 [2021-12-28 08:44:27,262 INFO L87 Difference]: Start difference. First operand 70 states and 80 transitions. Second operand has 28 states, 28 states have (on average 5.178571428571429) internal successors, (145), 27 states have internal predecessors, (145), 18 states have call successors, (28), 3 states have call predecessors, (28), 9 states have return successors, (32), 19 states have call predecessors, (32), 17 states have call successors, (32) [2021-12-28 08:44:27,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:44:27,687 INFO L93 Difference]: Finished difference Result 214 states and 278 transitions. [2021-12-28 08:44:27,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-12-28 08:44:27,687 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 5.178571428571429) internal successors, (145), 27 states have internal predecessors, (145), 18 states have call successors, (28), 3 states have call predecessors, (28), 9 states have return successors, (32), 19 states have call predecessors, (32), 17 states have call successors, (32) Word has length 281 [2021-12-28 08:44:27,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:44:27,689 INFO L225 Difference]: With dead ends: 214 [2021-12-28 08:44:27,689 INFO L226 Difference]: Without dead ends: 150 [2021-12-28 08:44:27,690 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 605 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 615 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=620, Invalid=1732, Unknown=0, NotChecked=0, Total=2352 [2021-12-28 08:44:27,691 INFO L933 BasicCegarLoop]: 22 mSDtfsCounter, 274 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 166 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 166 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-28 08:44:27,691 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [274 Valid, 136 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [166 Valid, 326 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-28 08:44:27,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2021-12-28 08:44:27,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 131. [2021-12-28 08:44:27,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 106 states have (on average 1.0660377358490567) internal successors, (113), 103 states have internal predecessors, (113), 16 states have call successors, (16), 14 states have call predecessors, (16), 8 states have return successors, (39), 13 states have call predecessors, (39), 15 states have call successors, (39) [2021-12-28 08:44:27,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 168 transitions. [2021-12-28 08:44:27,699 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 168 transitions. Word has length 281 [2021-12-28 08:44:27,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:44:27,699 INFO L470 AbstractCegarLoop]: Abstraction has 131 states and 168 transitions. [2021-12-28 08:44:27,699 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 5.178571428571429) internal successors, (145), 27 states have internal predecessors, (145), 18 states have call successors, (28), 3 states have call predecessors, (28), 9 states have return successors, (32), 19 states have call predecessors, (32), 17 states have call successors, (32) [2021-12-28 08:44:27,700 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 168 transitions. [2021-12-28 08:44:27,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2021-12-28 08:44:27,701 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:44:27,701 INFO L514 BasicCegarLoop]: trace histogram [15, 14, 12, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 3, 1, 1, 1, 1, 1] [2021-12-28 08:44:27,730 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-12-28 08:44:27,927 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 [2021-12-28 08:44:27,927 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-28 08:44:27,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:44:27,928 INFO L85 PathProgramCache]: Analyzing trace with hash 276030473, now seen corresponding path program 7 times [2021-12-28 08:44:27,928 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:44:27,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858551261] [2021-12-28 08:44:27,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:44:27,928 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:44:27,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:27,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-28 08:44:27,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:28,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:28,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:28,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:28,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:28,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:28,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:28,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:28,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:28,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-28 08:44:28,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:28,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-28 08:44:28,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:28,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:28,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:28,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:28,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:28,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-28 08:44:28,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:28,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:28,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:28,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:28,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:28,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:28,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:28,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-28 08:44:28,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:28,109 INFO L134 CoverageAnalysis]: Checked inductivity of 662 backedges. 78 proven. 129 refuted. 0 times theorem prover too weak. 455 trivial. 0 not checked. [2021-12-28 08:44:28,110 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:44:28,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858551261] [2021-12-28 08:44:28,110 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858551261] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 08:44:28,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1691532981] [2021-12-28 08:44:28,110 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-12-28 08:44:28,110 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:44:28,110 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 08:44:28,111 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) [2021-12-28 08:44:28,112 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-12-28 08:44:28,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:28,176 INFO L263 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 29 conjunts are in the unsatisfiable core [2021-12-28 08:44:28,178 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 08:44:28,549 INFO L134 CoverageAnalysis]: Checked inductivity of 662 backedges. 78 proven. 129 refuted. 0 times theorem prover too weak. 455 trivial. 0 not checked. [2021-12-28 08:44:28,549 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 08:44:29,426 INFO L134 CoverageAnalysis]: Checked inductivity of 662 backedges. 144 proven. 122 refuted. 0 times theorem prover too weak. 396 trivial. 0 not checked. [2021-12-28 08:44:29,426 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1691532981] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-28 08:44:29,426 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-28 08:44:29,427 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 17] total 26 [2021-12-28 08:44:29,427 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632603323] [2021-12-28 08:44:29,427 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-28 08:44:29,427 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-12-28 08:44:29,428 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:44:29,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-12-28 08:44:29,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=168, Invalid=534, Unknown=0, NotChecked=0, Total=702 [2021-12-28 08:44:29,428 INFO L87 Difference]: Start difference. First operand 131 states and 168 transitions. Second operand has 27 states, 26 states have (on average 2.6538461538461537) internal successors, (69), 27 states have internal predecessors, (69), 7 states have call successors, (8), 1 states have call predecessors, (8), 7 states have return successors, (18), 18 states have call predecessors, (18), 7 states have call successors, (18) [2021-12-28 08:44:29,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:44:29,545 INFO L93 Difference]: Finished difference Result 160 states and 208 transitions. [2021-12-28 08:44:29,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-12-28 08:44:29,545 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 2.6538461538461537) internal successors, (69), 27 states have internal predecessors, (69), 7 states have call successors, (8), 1 states have call predecessors, (8), 7 states have return successors, (18), 18 states have call predecessors, (18), 7 states have call successors, (18) Word has length 143 [2021-12-28 08:44:29,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:44:29,549 INFO L225 Difference]: With dead ends: 160 [2021-12-28 08:44:29,549 INFO L226 Difference]: Without dead ends: 159 [2021-12-28 08:44:29,550 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 344 GetRequests, 316 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 329 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=200, Invalid=670, Unknown=0, NotChecked=0, Total=870 [2021-12-28 08:44:29,552 INFO L933 BasicCegarLoop]: 24 mSDtfsCounter, 42 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-28 08:44:29,553 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 169 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-28 08:44:29,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2021-12-28 08:44:29,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 153. [2021-12-28 08:44:29,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 124 states have (on average 1.0564516129032258) internal successors, (131), 119 states have internal predecessors, (131), 18 states have call successors, (18), 14 states have call predecessors, (18), 10 states have return successors, (49), 19 states have call predecessors, (49), 17 states have call successors, (49) [2021-12-28 08:44:29,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 198 transitions. [2021-12-28 08:44:29,566 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 198 transitions. Word has length 143 [2021-12-28 08:44:29,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:44:29,566 INFO L470 AbstractCegarLoop]: Abstraction has 153 states and 198 transitions. [2021-12-28 08:44:29,566 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 2.6538461538461537) internal successors, (69), 27 states have internal predecessors, (69), 7 states have call successors, (8), 1 states have call predecessors, (8), 7 states have return successors, (18), 18 states have call predecessors, (18), 7 states have call successors, (18) [2021-12-28 08:44:29,567 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 198 transitions. [2021-12-28 08:44:29,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2021-12-28 08:44:29,570 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:44:29,570 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] [2021-12-28 08:44:29,598 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-12-28 08:44:29,788 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 [2021-12-28 08:44:29,789 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-28 08:44:29,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:44:29,789 INFO L85 PathProgramCache]: Analyzing trace with hash -441922097, now seen corresponding path program 8 times [2021-12-28 08:44:29,789 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:44:29,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704114782] [2021-12-28 08:44:29,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:44:29,790 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:44:29,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:29,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-28 08:44:29,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:29,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:29,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:29,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:29,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:29,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:29,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:29,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:29,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:29,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:29,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:29,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:29,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:29,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-28 08:44:29,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:29,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-28 08:44:29,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:30,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:30,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:30,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:30,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:30,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-28 08:44:30,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:30,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:30,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:30,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:30,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:30,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:30,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:30,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-28 08:44:30,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:30,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-28 08:44:30,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:30,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:30,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:30,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:30,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:30,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:30,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:30,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-28 08:44:30,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:30,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2021-12-28 08:44:30,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:30,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:30,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:30,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:30,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:30,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:30,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:30,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:30,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:30,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-28 08:44:30,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:30,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-28 08:44:30,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:30,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:30,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:30,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:30,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:30,140 INFO L134 CoverageAnalysis]: Checked inductivity of 3136 backedges. 582 proven. 736 refuted. 0 times theorem prover too weak. 1818 trivial. 0 not checked. [2021-12-28 08:44:30,140 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:44:30,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704114782] [2021-12-28 08:44:30,140 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704114782] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 08:44:30,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [663316521] [2021-12-28 08:44:30,140 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-28 08:44:30,141 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:44:30,141 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 08:44:30,142 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) [2021-12-28 08:44:30,171 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-12-28 08:44:30,267 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-28 08:44:30,268 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-28 08:44:30,270 INFO L263 TraceCheckSpWp]: Trace formula consists of 579 conjuncts, 18 conjunts are in the unsatisfiable core [2021-12-28 08:44:30,273 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 08:44:30,761 INFO L134 CoverageAnalysis]: Checked inductivity of 3136 backedges. 1778 proven. 484 refuted. 0 times theorem prover too weak. 874 trivial. 0 not checked. [2021-12-28 08:44:30,762 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 08:44:32,232 INFO L134 CoverageAnalysis]: Checked inductivity of 3136 backedges. 504 proven. 1101 refuted. 0 times theorem prover too weak. 1531 trivial. 0 not checked. [2021-12-28 08:44:32,232 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [663316521] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-28 08:44:32,232 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-28 08:44:32,232 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13, 19] total 27 [2021-12-28 08:44:32,233 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169618543] [2021-12-28 08:44:32,233 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-28 08:44:32,234 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-12-28 08:44:32,234 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:44:32,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-12-28 08:44:32,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=176, Invalid=526, Unknown=0, NotChecked=0, Total=702 [2021-12-28 08:44:32,235 INFO L87 Difference]: Start difference. First operand 153 states and 198 transitions. Second operand has 27 states, 27 states have (on average 5.62962962962963) internal successors, (152), 27 states have internal predecessors, (152), 22 states have call successors, (28), 2 states have call predecessors, (28), 10 states have return successors, (36), 14 states have call predecessors, (36), 22 states have call successors, (36) [2021-12-28 08:44:32,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:44:32,559 INFO L93 Difference]: Finished difference Result 295 states and 402 transitions. [2021-12-28 08:44:32,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-12-28 08:44:32,560 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 5.62962962962963) internal successors, (152), 27 states have internal predecessors, (152), 22 states have call successors, (28), 2 states have call predecessors, (28), 10 states have return successors, (36), 14 states have call predecessors, (36), 22 states have call successors, (36) Word has length 300 [2021-12-28 08:44:32,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:44:32,562 INFO L225 Difference]: With dead ends: 295 [2021-12-28 08:44:32,562 INFO L226 Difference]: Without dead ends: 148 [2021-12-28 08:44:32,566 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 682 GetRequests, 647 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 314 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=332, Invalid=858, Unknown=0, NotChecked=0, Total=1190 [2021-12-28 08:44:32,567 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 154 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-28 08:44:32,567 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 217 Invalid, 568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 453 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-28 08:44:32,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2021-12-28 08:44:32,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 136. [2021-12-28 08:44:32,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 110 states have (on average 1.0454545454545454) internal successors, (115), 107 states have internal predecessors, (115), 17 states have call successors, (17), 14 states have call predecessors, (17), 8 states have return successors, (38), 14 states have call predecessors, (38), 16 states have call successors, (38) [2021-12-28 08:44:32,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 170 transitions. [2021-12-28 08:44:32,578 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 170 transitions. Word has length 300 [2021-12-28 08:44:32,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:44:32,578 INFO L470 AbstractCegarLoop]: Abstraction has 136 states and 170 transitions. [2021-12-28 08:44:32,579 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 5.62962962962963) internal successors, (152), 27 states have internal predecessors, (152), 22 states have call successors, (28), 2 states have call predecessors, (28), 10 states have return successors, (36), 14 states have call predecessors, (36), 22 states have call successors, (36) [2021-12-28 08:44:32,579 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 170 transitions. [2021-12-28 08:44:32,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2021-12-28 08:44:32,581 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:44:32,581 INFO L514 BasicCegarLoop]: trace histogram [36, 34, 29, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 17, 16, 16, 11, 7, 1, 1, 1, 1, 1] [2021-12-28 08:44:32,606 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-12-28 08:44:32,804 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 [2021-12-28 08:44:32,804 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-28 08:44:32,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:44:32,804 INFO L85 PathProgramCache]: Analyzing trace with hash 544597391, now seen corresponding path program 9 times [2021-12-28 08:44:32,804 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:44:32,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614585108] [2021-12-28 08:44:32,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:44:32,805 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:44:32,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:32,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-28 08:44:32,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:32,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:32,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:32,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:32,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:32,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:32,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:32,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:32,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:33,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:33,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:33,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:33,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:33,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-28 08:44:33,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:33,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-28 08:44:33,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:33,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:33,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:33,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:33,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:33,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-28 08:44:33,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:33,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:33,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:33,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:33,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:33,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:33,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:33,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-28 08:44:33,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:33,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-28 08:44:33,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:33,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:33,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:33,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:33,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:33,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:33,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:33,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:33,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:33,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-28 08:44:33,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:33,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-28 08:44:33,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:33,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:33,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:33,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:33,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:33,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2021-12-28 08:44:33,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:33,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:33,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:33,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:33,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:33,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:33,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:33,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:33,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:33,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-28 08:44:33,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:33,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-28 08:44:33,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:33,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:33,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:33,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:33,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:33,221 INFO L134 CoverageAnalysis]: Checked inductivity of 4183 backedges. 988 proven. 816 refuted. 0 times theorem prover too weak. 2379 trivial. 0 not checked. [2021-12-28 08:44:33,222 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:44:33,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614585108] [2021-12-28 08:44:33,222 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614585108] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 08:44:33,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [442903627] [2021-12-28 08:44:33,222 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-28 08:44:33,222 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:44:33,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 08:44:33,223 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) [2021-12-28 08:44:33,254 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-12-28 08:44:33,353 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2021-12-28 08:44:33,353 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-28 08:44:33,355 INFO L263 TraceCheckSpWp]: Trace formula consists of 398 conjuncts, 16 conjunts are in the unsatisfiable core [2021-12-28 08:44:33,359 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 08:44:33,832 INFO L134 CoverageAnalysis]: Checked inductivity of 4183 backedges. 1125 proven. 412 refuted. 0 times theorem prover too weak. 2646 trivial. 0 not checked. [2021-12-28 08:44:33,833 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 08:44:35,013 INFO L134 CoverageAnalysis]: Checked inductivity of 4183 backedges. 1125 proven. 448 refuted. 0 times theorem prover too weak. 2610 trivial. 0 not checked. [2021-12-28 08:44:35,014 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [442903627] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-28 08:44:35,014 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-28 08:44:35,014 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 12, 17] total 30 [2021-12-28 08:44:35,014 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124355197] [2021-12-28 08:44:35,014 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-28 08:44:35,015 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-12-28 08:44:35,015 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:44:35,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-12-28 08:44:35,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=215, Invalid=655, Unknown=0, NotChecked=0, Total=870 [2021-12-28 08:44:35,016 INFO L87 Difference]: Start difference. First operand 136 states and 170 transitions. Second operand has 30 states, 30 states have (on average 4.9) internal successors, (147), 30 states have internal predecessors, (147), 17 states have call successors, (27), 1 states have call predecessors, (27), 11 states have return successors, (35), 23 states have call predecessors, (35), 17 states have call successors, (35) [2021-12-28 08:44:35,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:44:35,454 INFO L93 Difference]: Finished difference Result 282 states and 358 transitions. [2021-12-28 08:44:35,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-12-28 08:44:35,455 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 4.9) internal successors, (147), 30 states have internal predecessors, (147), 17 states have call successors, (27), 1 states have call predecessors, (27), 11 states have return successors, (35), 23 states have call predecessors, (35), 17 states have call successors, (35) Word has length 345 [2021-12-28 08:44:35,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:44:35,456 INFO L225 Difference]: With dead ends: 282 [2021-12-28 08:44:35,456 INFO L226 Difference]: Without dead ends: 152 [2021-12-28 08:44:35,457 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 787 GetRequests, 744 SyntacticMatches, 3 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 513 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=448, Invalid=1274, Unknown=0, NotChecked=0, Total=1722 [2021-12-28 08:44:35,458 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 181 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 651 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 755 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 651 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-28 08:44:35,458 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [183 Valid, 261 Invalid, 755 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 651 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-28 08:44:35,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2021-12-28 08:44:35,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 134. [2021-12-28 08:44:35,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 108 states have (on average 1.037037037037037) internal successors, (112), 106 states have internal predecessors, (112), 17 states have call successors, (17), 14 states have call predecessors, (17), 8 states have return successors, (31), 13 states have call predecessors, (31), 16 states have call successors, (31) [2021-12-28 08:44:35,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 160 transitions. [2021-12-28 08:44:35,468 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 160 transitions. Word has length 345 [2021-12-28 08:44:35,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:44:35,470 INFO L470 AbstractCegarLoop]: Abstraction has 134 states and 160 transitions. [2021-12-28 08:44:35,470 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 4.9) internal successors, (147), 30 states have internal predecessors, (147), 17 states have call successors, (27), 1 states have call predecessors, (27), 11 states have return successors, (35), 23 states have call predecessors, (35), 17 states have call successors, (35) [2021-12-28 08:44:35,470 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 160 transitions. [2021-12-28 08:44:35,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 405 [2021-12-28 08:44:35,472 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:44:35,472 INFO L514 BasicCegarLoop]: trace histogram [42, 40, 34, 21, 21, 21, 21, 20, 20, 20, 20, 20, 20, 20, 19, 19, 13, 8, 1, 1, 1, 1, 1] [2021-12-28 08:44:35,500 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-12-28 08:44:35,687 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 [2021-12-28 08:44:35,687 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-28 08:44:35,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:44:35,688 INFO L85 PathProgramCache]: Analyzing trace with hash -201664112, now seen corresponding path program 10 times [2021-12-28 08:44:35,688 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:44:35,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128572142] [2021-12-28 08:44:35,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:44:35,688 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:44:35,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:35,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-28 08:44:35,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:35,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:35,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:35,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:35,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:35,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:35,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:35,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:35,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:35,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:35,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:36,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:36,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:36,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-28 08:44:36,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:36,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-28 08:44:36,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:36,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:36,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:36,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:36,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:36,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-28 08:44:36,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:36,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:36,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:36,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:36,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:36,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:36,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:36,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-28 08:44:36,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:36,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-28 08:44:36,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:36,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:36,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:36,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:36,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:36,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:36,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:36,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:36,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:36,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-28 08:44:36,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:36,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-28 08:44:36,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:36,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:36,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:36,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:36,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:36,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2021-12-28 08:44:36,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:36,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:36,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:36,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:36,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:36,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:36,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:36,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:36,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:36,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:36,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:36,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-28 08:44:36,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:36,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-28 08:44:36,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:36,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:36,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:36,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:36,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:36,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-28 08:44:36,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:36,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:36,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:36,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:36,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:36,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:36,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:36,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-28 08:44:36,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:36,306 INFO L134 CoverageAnalysis]: Checked inductivity of 5784 backedges. 820 proven. 1093 refuted. 0 times theorem prover too weak. 3871 trivial. 0 not checked. [2021-12-28 08:44:36,306 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:44:36,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128572142] [2021-12-28 08:44:36,307 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128572142] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 08:44:36,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [807416756] [2021-12-28 08:44:36,307 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-12-28 08:44:36,307 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:44:36,308 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 08:44:36,336 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) [2021-12-28 08:44:36,337 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-12-28 08:44:36,499 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-12-28 08:44:36,499 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-28 08:44:36,502 INFO L263 TraceCheckSpWp]: Trace formula consists of 770 conjuncts, 81 conjunts are in the unsatisfiable core [2021-12-28 08:44:36,507 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 08:44:37,264 INFO L134 CoverageAnalysis]: Checked inductivity of 5784 backedges. 820 proven. 1093 refuted. 0 times theorem prover too weak. 3871 trivial. 0 not checked. [2021-12-28 08:44:37,264 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 08:44:41,976 INFO L134 CoverageAnalysis]: Checked inductivity of 5784 backedges. 1149 proven. 996 refuted. 0 times theorem prover too weak. 3639 trivial. 0 not checked. [2021-12-28 08:44:41,976 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [807416756] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-28 08:44:41,977 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-28 08:44:41,977 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 29] total 40 [2021-12-28 08:44:41,977 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928359336] [2021-12-28 08:44:41,977 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-28 08:44:41,978 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2021-12-28 08:44:41,978 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:44:41,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-12-28 08:44:41,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=367, Invalid=1273, Unknown=0, NotChecked=0, Total=1640 [2021-12-28 08:44:41,979 INFO L87 Difference]: Start difference. First operand 134 states and 160 transitions. Second operand has 41 states, 40 states have (on average 2.575) internal successors, (103), 41 states have internal predecessors, (103), 11 states have call successors, (12), 1 states have call predecessors, (12), 11 states have return successors, (28), 28 states have call predecessors, (28), 11 states have call successors, (28) [2021-12-28 08:44:42,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:44:42,131 INFO L93 Difference]: Finished difference Result 165 states and 210 transitions. [2021-12-28 08:44:42,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-12-28 08:44:42,132 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 40 states have (on average 2.575) internal successors, (103), 41 states have internal predecessors, (103), 11 states have call successors, (12), 1 states have call predecessors, (12), 11 states have return successors, (28), 28 states have call predecessors, (28), 11 states have call successors, (28) Word has length 404 [2021-12-28 08:44:42,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:44:42,133 INFO L225 Difference]: With dead ends: 165 [2021-12-28 08:44:42,133 INFO L226 Difference]: Without dead ends: 164 [2021-12-28 08:44:42,134 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 970 GetRequests, 928 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 844 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=409, Invalid=1483, Unknown=0, NotChecked=0, Total=1892 [2021-12-28 08:44:42,135 INFO L933 BasicCegarLoop]: 27 mSDtfsCounter, 60 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-28 08:44:42,135 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [71 Valid, 233 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-28 08:44:42,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2021-12-28 08:44:42,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 154. [2021-12-28 08:44:42,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 124 states have (on average 1.032258064516129) internal successors, (128), 121 states have internal predecessors, (128), 19 states have call successors, (19), 14 states have call predecessors, (19), 10 states have return successors, (49), 18 states have call predecessors, (49), 18 states have call successors, (49) [2021-12-28 08:44:42,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 196 transitions. [2021-12-28 08:44:42,143 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 196 transitions. Word has length 404 [2021-12-28 08:44:42,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:44:42,144 INFO L470 AbstractCegarLoop]: Abstraction has 154 states and 196 transitions. [2021-12-28 08:44:42,144 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 40 states have (on average 2.575) internal successors, (103), 41 states have internal predecessors, (103), 11 states have call successors, (12), 1 states have call predecessors, (12), 11 states have return successors, (28), 28 states have call predecessors, (28), 11 states have call successors, (28) [2021-12-28 08:44:42,144 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 196 transitions. [2021-12-28 08:44:42,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1236 [2021-12-28 08:44:42,155 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:44:42,155 INFO L514 BasicCegarLoop]: trace histogram [128, 123, 104, 65, 65, 65, 65, 62, 62, 62, 62, 62, 61, 61, 60, 60, 39, 24, 1, 1, 1, 1, 1] [2021-12-28 08:44:42,182 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2021-12-28 08:44:42,375 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 [2021-12-28 08:44:42,376 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-28 08:44:42,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:44:42,376 INFO L85 PathProgramCache]: Analyzing trace with hash -1173458992, now seen corresponding path program 11 times [2021-12-28 08:44:42,376 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:44:42,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441627148] [2021-12-28 08:44:42,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:44:42,377 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:44:42,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:42,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-28 08:44:42,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:42,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:42,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:42,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:42,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:42,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:42,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:43,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:43,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:43,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:43,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-28 08:44:43,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-28 08:44:43,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:43,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:43,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-28 08:44:43,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:43,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:43,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:43,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-28 08:44:43,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-28 08:44:43,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:43,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:43,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:43,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:43,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-28 08:44:43,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-28 08:44:43,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:43,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:43,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2021-12-28 08:44:43,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:43,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:43,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:43,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:43,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:43,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-28 08:44:43,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-28 08:44:43,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:43,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:43,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-28 08:44:43,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:43,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:43,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:43,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-28 08:44:43,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 434 [2021-12-28 08:44:43,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:43,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:43,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:43,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:43,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:43,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:43,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:43,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-28 08:44:43,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-28 08:44:43,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:43,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:43,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-28 08:44:43,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:43,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:43,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:43,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-28 08:44:43,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-28 08:44:43,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:43,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:43,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:43,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:43,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-28 08:44:43,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-28 08:44:43,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:43,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:43,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2021-12-28 08:44:43,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:43,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:43,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:43,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:43,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:43,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-28 08:44:43,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-28 08:44:43,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:43,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:43,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-28 08:44:43,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:43,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:43,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:43,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-28 08:44:43,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 835 [2021-12-28 08:44:43,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:43,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:43,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:43,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:43,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:43,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:43,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:43,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-28 08:44:43,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-28 08:44:43,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:43,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:43,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-28 08:44:43,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:43,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:43,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:43,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-28 08:44:43,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-28 08:44:43,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:43,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:43,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:43,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:43,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-28 08:44:43,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-28 08:44:43,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:43,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:43,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2021-12-28 08:44:43,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:43,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:43,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:43,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:43,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:43,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-28 08:44:43,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-28 08:44:43,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:43,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:43,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-28 08:44:43,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:43,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:43,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:43,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-28 08:44:43,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:43,787 INFO L134 CoverageAnalysis]: Checked inductivity of 55852 backedges. 2371 proven. 9201 refuted. 0 times theorem prover too weak. 44280 trivial. 0 not checked. [2021-12-28 08:44:43,787 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:44:43,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441627148] [2021-12-28 08:44:43,787 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441627148] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 08:44:43,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1112776716] [2021-12-28 08:44:43,787 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-12-28 08:44:43,787 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:44:43,788 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 08:44:43,788 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) [2021-12-28 08:44:43,815 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-12-28 08:44:44,249 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 63 check-sat command(s) [2021-12-28 08:44:44,249 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-28 08:44:44,253 INFO L263 TraceCheckSpWp]: Trace formula consists of 1562 conjuncts, 29 conjunts are in the unsatisfiable core [2021-12-28 08:44:44,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 08:44:45,821 INFO L134 CoverageAnalysis]: Checked inductivity of 55852 backedges. 7328 proven. 5392 refuted. 0 times theorem prover too weak. 43132 trivial. 0 not checked. [2021-12-28 08:44:45,821 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 08:44:50,181 INFO L134 CoverageAnalysis]: Checked inductivity of 55852 backedges. 7323 proven. 5539 refuted. 0 times theorem prover too weak. 42990 trivial. 0 not checked. [2021-12-28 08:44:50,181 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1112776716] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-28 08:44:50,181 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-28 08:44:50,182 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 19, 30] total 47 [2021-12-28 08:44:50,182 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003057382] [2021-12-28 08:44:50,182 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-28 08:44:50,184 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2021-12-28 08:44:50,184 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:44:50,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2021-12-28 08:44:50,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=465, Invalid=1697, Unknown=0, NotChecked=0, Total=2162 [2021-12-28 08:44:50,186 INFO L87 Difference]: Start difference. First operand 154 states and 196 transitions. Second operand has 47 states, 47 states have (on average 5.0638297872340425) internal successors, (238), 47 states have internal predecessors, (238), 41 states have call successors, (46), 4 states have call predecessors, (46), 14 states have return successors, (59), 24 states have call predecessors, (59), 39 states have call successors, (59) [2021-12-28 08:44:50,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:44:50,929 INFO L93 Difference]: Finished difference Result 359 states and 513 transitions. [2021-12-28 08:44:50,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-12-28 08:44:50,930 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 47 states have (on average 5.0638297872340425) internal successors, (238), 47 states have internal predecessors, (238), 41 states have call successors, (46), 4 states have call predecessors, (46), 14 states have return successors, (59), 24 states have call predecessors, (59), 39 states have call successors, (59) Word has length 1235 [2021-12-28 08:44:50,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:44:50,933 INFO L225 Difference]: With dead ends: 359 [2021-12-28 08:44:50,933 INFO L226 Difference]: Without dead ends: 211 [2021-12-28 08:44:50,936 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2770 GetRequests, 2694 SyntacticMatches, 7 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1760 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=1201, Invalid=3769, Unknown=0, NotChecked=0, Total=4970 [2021-12-28 08:44:50,936 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 700 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 688 mSolverCounterSat, 650 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 700 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 1338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 650 IncrementalHoareTripleChecker+Valid, 688 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-28 08:44:50,937 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [700 Valid, 259 Invalid, 1338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [650 Valid, 688 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-28 08:44:50,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2021-12-28 08:44:50,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 183. [2021-12-28 08:44:50,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 148 states have (on average 1.0337837837837838) internal successors, (153), 144 states have internal predecessors, (153), 23 states have call successors, (23), 17 states have call predecessors, (23), 11 states have return successors, (64), 21 states have call predecessors, (64), 22 states have call successors, (64) [2021-12-28 08:44:50,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 240 transitions. [2021-12-28 08:44:50,955 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 240 transitions. Word has length 1235 [2021-12-28 08:44:50,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:44:50,956 INFO L470 AbstractCegarLoop]: Abstraction has 183 states and 240 transitions. [2021-12-28 08:44:50,956 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 47 states have (on average 5.0638297872340425) internal successors, (238), 47 states have internal predecessors, (238), 41 states have call successors, (46), 4 states have call predecessors, (46), 14 states have return successors, (59), 24 states have call predecessors, (59), 39 states have call successors, (59) [2021-12-28 08:44:50,957 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 240 transitions. [2021-12-28 08:44:50,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 817 [2021-12-28 08:44:50,962 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:44:50,962 INFO L514 BasicCegarLoop]: trace histogram [84, 82, 68, 42, 42, 42, 42, 41, 41, 41, 41, 41, 41, 41, 40, 40, 26, 16, 1, 1, 1, 1, 1] [2021-12-28 08:44:50,991 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-12-28 08:44:51,187 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 [2021-12-28 08:44:51,187 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-28 08:44:51,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:44:51,188 INFO L85 PathProgramCache]: Analyzing trace with hash 193385193, now seen corresponding path program 12 times [2021-12-28 08:44:51,188 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:44:51,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297360589] [2021-12-28 08:44:51,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:44:51,188 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:44:51,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:51,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-28 08:44:51,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:51,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:51,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:51,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:51,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:51,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:51,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:51,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:51,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:51,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:51,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:51,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:51,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:51,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:51,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:51,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:51,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:51,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-28 08:44:51,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:51,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-28 08:44:51,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:51,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:51,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:51,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:51,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:51,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-28 08:44:51,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:51,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:51,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:51,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:51,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:51,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:51,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:51,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-28 08:44:51,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:51,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-28 08:44:51,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:51,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:51,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:51,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:51,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:51,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:51,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:51,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:51,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:51,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-28 08:44:51,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:51,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-28 08:44:51,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:51,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:51,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:51,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:51,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:51,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2021-12-28 08:44:51,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:51,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:51,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:51,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:51,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:51,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:51,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:51,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:51,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:51,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:51,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:51,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-28 08:44:51,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:51,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-28 08:44:51,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:51,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:51,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:51,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:51,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:51,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-28 08:44:51,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:51,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:51,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:51,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:51,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:51,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:51,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:51,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-28 08:44:51,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:51,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 406 [2021-12-28 08:44:51,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:51,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:51,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:52,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:52,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:52,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:52,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:52,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:52,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:52,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:52,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:52,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-28 08:44:52,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:52,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-28 08:44:52,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:52,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:52,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:52,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:52,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:52,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-28 08:44:52,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:52,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:52,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:52,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:52,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:52,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:52,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:52,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-28 08:44:52,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:52,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 573 [2021-12-28 08:44:52,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:52,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:52,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:52,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:52,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:52,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:52,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:52,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:52,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:52,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:52,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:52,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:52,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:52,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-28 08:44:52,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:52,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-28 08:44:52,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:52,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:52,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:52,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:52,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:52,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-28 08:44:52,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:52,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:52,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:52,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:52,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:52,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:52,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:52,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-28 08:44:52,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:52,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-28 08:44:52,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:52,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:52,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:52,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:52,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:52,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:52,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:52,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:52,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:52,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-28 08:44:52,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:52,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-28 08:44:52,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:52,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:52,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:52,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:52,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:52,231 INFO L134 CoverageAnalysis]: Checked inductivity of 24175 backedges. 2384 proven. 4185 refuted. 0 times theorem prover too weak. 17606 trivial. 0 not checked. [2021-12-28 08:44:52,231 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:44:52,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297360589] [2021-12-28 08:44:52,231 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297360589] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 08:44:52,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1962076052] [2021-12-28 08:44:52,231 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-12-28 08:44:52,232 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:44:52,232 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 08:44:52,233 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) [2021-12-28 08:44:52,234 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-12-28 08:44:52,582 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 45 check-sat command(s) [2021-12-28 08:44:52,582 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-28 08:44:52,586 INFO L263 TraceCheckSpWp]: Trace formula consists of 1125 conjuncts, 24 conjunts are in the unsatisfiable core [2021-12-28 08:44:52,594 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 08:44:53,626 INFO L134 CoverageAnalysis]: Checked inductivity of 24175 backedges. 3645 proven. 2843 refuted. 0 times theorem prover too weak. 17687 trivial. 0 not checked. [2021-12-28 08:44:53,627 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 08:44:56,434 INFO L134 CoverageAnalysis]: Checked inductivity of 24175 backedges. 3649 proven. 2950 refuted. 0 times theorem prover too weak. 17576 trivial. 0 not checked. [2021-12-28 08:44:56,435 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1962076052] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-28 08:44:56,435 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-28 08:44:56,435 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 16, 25] total 42 [2021-12-28 08:44:56,436 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008569895] [2021-12-28 08:44:56,436 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-28 08:44:56,437 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2021-12-28 08:44:56,437 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:44:56,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2021-12-28 08:44:56,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=389, Invalid=1333, Unknown=0, NotChecked=0, Total=1722 [2021-12-28 08:44:56,438 INFO L87 Difference]: Start difference. First operand 183 states and 240 transitions. Second operand has 42 states, 42 states have (on average 5.095238095238095) internal successors, (214), 42 states have internal predecessors, (214), 29 states have call successors, (39), 1 states have call predecessors, (39), 17 states have return successors, (55), 31 states have call predecessors, (55), 29 states have call successors, (55) [2021-12-28 08:44:57,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:44:57,091 INFO L93 Difference]: Finished difference Result 376 states and 524 transitions. [2021-12-28 08:44:57,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-12-28 08:44:57,092 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 5.095238095238095) internal successors, (214), 42 states have internal predecessors, (214), 29 states have call successors, (39), 1 states have call predecessors, (39), 17 states have return successors, (55), 31 states have call predecessors, (55), 29 states have call successors, (55) Word has length 816 [2021-12-28 08:44:57,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:44:57,095 INFO L225 Difference]: With dead ends: 376 [2021-12-28 08:44:57,096 INFO L226 Difference]: Without dead ends: 199 [2021-12-28 08:44:57,098 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1833 GetRequests, 1774 SyntacticMatches, 4 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1159 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=765, Invalid=2427, Unknown=0, NotChecked=0, Total=3192 [2021-12-28 08:44:57,099 INFO L933 BasicCegarLoop]: 63 mSDtfsCounter, 271 mSDsluCounter, 392 mSDsCounter, 0 mSdLazyCounter, 1189 mSolverCounterSat, 266 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 455 SdHoareTripleChecker+Invalid, 1455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 266 IncrementalHoareTripleChecker+Valid, 1189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-28 08:44:57,099 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [272 Valid, 455 Invalid, 1455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [266 Valid, 1189 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-28 08:44:57,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2021-12-28 08:44:57,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 154. [2021-12-28 08:44:57,108 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) [2021-12-28 08:44:57,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 194 transitions. [2021-12-28 08:44:57,109 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 194 transitions. Word has length 816 [2021-12-28 08:44:57,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:44:57,110 INFO L470 AbstractCegarLoop]: Abstraction has 154 states and 194 transitions. [2021-12-28 08:44:57,111 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 5.095238095238095) internal successors, (214), 42 states have internal predecessors, (214), 29 states have call successors, (39), 1 states have call predecessors, (39), 17 states have return successors, (55), 31 states have call predecessors, (55), 29 states have call successors, (55) [2021-12-28 08:44:57,111 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 194 transitions. [2021-12-28 08:44:57,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1746 [2021-12-28 08:44:57,131 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:44:57,131 INFO L514 BasicCegarLoop]: trace histogram [180, 175, 146, 91, 91, 91, 91, 88, 88, 88, 88, 88, 87, 87, 86, 86, 55, 34, 1, 1, 1, 1, 1] [2021-12-28 08:44:57,159 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-12-28 08:44:57,351 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 [2021-12-28 08:44:57,352 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-28 08:44:57,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:44:57,352 INFO L85 PathProgramCache]: Analyzing trace with hash -796031104, now seen corresponding path program 13 times [2021-12-28 08:44:57,352 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:44:57,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528170370] [2021-12-28 08:44:57,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:44:57,353 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:44:57,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:58,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-28 08:44:58,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:58,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:58,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:58,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:58,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:58,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:58,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:58,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:58,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:58,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:58,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:58,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:58,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:58,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:58,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:58,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:58,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:58,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-28 08:44:58,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:58,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-28 08:44:58,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:58,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:58,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:58,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:58,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:58,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-28 08:44:58,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:58,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:58,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:58,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:58,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:58,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:58,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:58,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-28 08:44:58,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:58,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-28 08:44:58,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:58,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:58,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:58,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:58,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:58,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:58,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:58,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:58,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:58,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-28 08:44:58,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:58,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-28 08:44:58,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:58,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:58,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:58,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:58,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:58,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2021-12-28 08:44:58,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:58,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:58,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:58,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:58,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:58,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:58,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:58,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:58,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:58,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:58,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:58,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-28 08:44:58,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:58,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-28 08:44:58,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:58,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:58,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:58,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:58,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:58,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-28 08:44:58,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:58,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:58,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:58,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:58,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:58,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:58,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:58,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-28 08:44:58,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:58,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 406 [2021-12-28 08:44:58,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:58,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:58,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:58,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:58,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:58,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:58,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:58,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:58,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:58,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:58,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:58,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:58,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:58,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-28 08:44:58,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:58,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-28 08:44:58,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:58,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:58,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:58,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:58,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:58,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-28 08:44:58,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:58,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:58,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:58,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:58,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:58,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:58,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:58,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-28 08:44:58,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:58,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-28 08:44:58,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:58,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:58,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:58,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:58,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:58,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:58,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:58,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:58,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:58,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-28 08:44:58,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:58,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-28 08:44:58,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:58,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:58,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:58,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:58,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:58,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 689 [2021-12-28 08:44:58,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:58,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:58,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:58,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:58,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:59,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:59,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:59,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:59,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:59,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:59,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-28 08:44:59,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-28 08:44:59,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:59,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:59,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-28 08:44:59,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:59,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:59,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:59,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-28 08:44:59,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-28 08:44:59,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:59,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:59,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:59,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:59,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-28 08:44:59,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-28 08:44:59,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:59,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:59,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2021-12-28 08:44:59,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:59,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:59,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:59,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:59,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:59,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-28 08:44:59,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-28 08:44:59,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:59,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:59,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-28 08:44:59,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:59,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:59,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:59,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-28 08:44:59,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 406 [2021-12-28 08:44:59,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:59,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:59,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:59,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:59,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:59,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:59,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-28 08:44:59,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-28 08:44:59,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:59,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:59,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-28 08:44:59,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:59,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:59,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:59,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-28 08:44:59,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-28 08:44:59,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:59,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:59,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:59,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:59,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-28 08:44:59,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-28 08:44:59,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:59,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:59,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1345 [2021-12-28 08:44:59,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:59,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:59,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:59,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:59,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:59,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:59,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:59,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-28 08:44:59,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-28 08:44:59,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:59,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:59,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-28 08:44:59,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:59,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:59,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:59,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-28 08:44:59,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-28 08:44:59,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:59,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:59,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:59,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:59,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-28 08:44:59,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-28 08:44:59,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:59,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:59,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2021-12-28 08:44:59,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:59,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:59,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:59,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:59,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:59,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-28 08:44:59,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-28 08:44:59,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:59,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:59,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-28 08:44:59,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:59,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:44:59,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:59,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-28 08:44:59,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,452 INFO L134 CoverageAnalysis]: Checked inductivity of 111989 backedges. 4257 proven. 14619 refuted. 0 times theorem prover too weak. 93113 trivial. 0 not checked. [2021-12-28 08:44:59,452 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:44:59,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528170370] [2021-12-28 08:44:59,453 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528170370] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 08:44:59,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1717596700] [2021-12-28 08:44:59,453 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-12-28 08:44:59,453 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:44:59,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 08:44:59,456 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) [2021-12-28 08:44:59,484 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-12-28 08:44:59,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:59,991 INFO L263 TraceCheckSpWp]: Trace formula consists of 3245 conjuncts, 34 conjunts are in the unsatisfiable core [2021-12-28 08:45:00,010 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 08:45:01,977 INFO L134 CoverageAnalysis]: Checked inductivity of 111989 backedges. 44425 proven. 10618 refuted. 0 times theorem prover too weak. 56946 trivial. 0 not checked. [2021-12-28 08:45:01,977 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 08:45:06,952 INFO L134 CoverageAnalysis]: Checked inductivity of 111989 backedges. 4770 proven. 15687 refuted. 0 times theorem prover too weak. 91532 trivial. 0 not checked. [2021-12-28 08:45:06,952 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1717596700] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-28 08:45:06,952 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-28 08:45:06,953 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 21, 31] total 45 [2021-12-28 08:45:06,953 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420796279] [2021-12-28 08:45:06,953 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-28 08:45:06,955 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2021-12-28 08:45:06,955 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:45:06,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2021-12-28 08:45:06,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=458, Invalid=1522, Unknown=0, NotChecked=0, Total=1980 [2021-12-28 08:45:06,957 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) [2021-12-28 08:45:07,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:45:07,529 INFO L93 Difference]: Finished difference Result 366 states and 500 transitions. [2021-12-28 08:45:07,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-12-28 08:45:07,529 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 1745 [2021-12-28 08:45:07,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:45:07,532 INFO L225 Difference]: With dead ends: 366 [2021-12-28 08:45:07,532 INFO L226 Difference]: Without dead ends: 218 [2021-12-28 08:45:07,535 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3904 GetRequests, 3827 SyntacticMatches, 2 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1729 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=1534, Invalid=4318, Unknown=0, NotChecked=0, Total=5852 [2021-12-28 08:45:07,535 INFO L933 BasicCegarLoop]: 28 mSDtfsCounter, 553 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 420 mSolverCounterSat, 251 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 555 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 251 IncrementalHoareTripleChecker+Valid, 420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-28 08:45:07,536 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [555 Valid, 197 Invalid, 671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [251 Valid, 420 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-28 08:45:07,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2021-12-28 08:45:07,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 167. [2021-12-28 08:45:07,544 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) [2021-12-28 08:45:07,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 215 transitions. [2021-12-28 08:45:07,545 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 215 transitions. Word has length 1745 [2021-12-28 08:45:07,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:45:07,546 INFO L470 AbstractCegarLoop]: Abstraction has 167 states and 215 transitions. [2021-12-28 08:45:07,546 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) [2021-12-28 08:45:07,547 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 215 transitions. [2021-12-28 08:45:07,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1072 [2021-12-28 08:45:07,555 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:45:07,555 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] [2021-12-28 08:45:07,583 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2021-12-28 08:45:07,783 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 [2021-12-28 08:45:07,783 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-28 08:45:07,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:45:07,784 INFO L85 PathProgramCache]: Analyzing trace with hash -1677138856, now seen corresponding path program 14 times [2021-12-28 08:45:07,784 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:45:07,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64389655] [2021-12-28 08:45:07,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:45:07,784 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:45:07,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:08,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-28 08:45:08,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:08,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:45:08,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:08,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:45:08,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:08,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:45:08,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:08,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:45:08,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:08,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:45:08,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:08,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:45:08,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:08,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 08:45:08,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:08,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:45:08,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:08,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-28 08:45:08,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:08,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-28 08:45:08,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat