./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/recursive/Fibonacci03.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/recursive/Fibonacci03.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash be0a584ba9648c80e7a0523ff51ba530f1926c55cecd3c62f2cee05fbbff42e3 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-16 09:03:33,973 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-16 09:03:33,975 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-16 09:03:34,024 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-16 09:03:34,025 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-16 09:03:34,027 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-16 09:03:34,029 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-16 09:03:34,031 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-16 09:03:34,033 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-16 09:03:34,036 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-16 09:03:34,036 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-16 09:03:34,037 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-16 09:03:34,038 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-16 09:03:34,040 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-16 09:03:34,042 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-16 09:03:34,045 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-16 09:03:34,046 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-16 09:03:34,047 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-16 09:03:34,049 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-16 09:03:34,054 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-16 09:03:34,055 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-16 09:03:34,055 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-16 09:03:34,057 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-16 09:03:34,057 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-16 09:03:34,062 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-16 09:03:34,062 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-16 09:03:34,062 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-16 09:03:34,064 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-16 09:03:34,064 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-16 09:03:34,065 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-16 09:03:34,065 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-16 09:03:34,066 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-16 09:03:34,068 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-16 09:03:34,069 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-16 09:03:34,070 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-16 09:03:34,071 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-16 09:03:34,071 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-16 09:03:34,071 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-16 09:03:34,072 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-16 09:03:34,072 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-16 09:03:34,073 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-16 09:03:34,074 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2021-12-16 09:03:34,097 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-16 09:03:34,099 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-16 09:03:34,099 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-16 09:03:34,099 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-16 09:03:34,100 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-16 09:03:34,100 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-16 09:03:34,101 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-16 09:03:34,101 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-16 09:03:34,101 INFO L138 SettingsManager]: * Use SBE=true [2021-12-16 09:03:34,101 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-16 09:03:34,102 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-16 09:03:34,102 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-16 09:03:34,102 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-16 09:03:34,102 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-16 09:03:34,102 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-16 09:03:34,103 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-16 09:03:34,103 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-16 09:03:34,103 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-16 09:03:34,103 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-12-16 09:03:34,103 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-16 09:03:34,103 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-16 09:03:34,103 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-16 09:03:34,104 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-16 09:03:34,104 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-16 09:03:34,104 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-16 09:03:34,104 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-16 09:03:34,104 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 09:03:34,105 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-16 09:03:34,105 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-16 09:03:34,106 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-16 09:03:34,106 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-16 09:03:34,106 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-16 09:03:34,106 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-16 09:03:34,106 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-16 09:03:34,106 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> be0a584ba9648c80e7a0523ff51ba530f1926c55cecd3c62f2cee05fbbff42e3 [2021-12-16 09:03:34,337 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-16 09:03:34,353 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-16 09:03:34,355 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-16 09:03:34,356 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-16 09:03:34,356 INFO L275 PluginConnector]: CDTParser initialized [2021-12-16 09:03:34,357 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive/Fibonacci03.c [2021-12-16 09:03:34,413 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92f8d5bc1/9cd0eab33b8f4ade8be4ba6ffc8f0408/FLAGdb2b98bbe [2021-12-16 09:03:34,777 INFO L306 CDTParser]: Found 1 translation units. [2021-12-16 09:03:34,777 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/Fibonacci03.c [2021-12-16 09:03:34,781 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92f8d5bc1/9cd0eab33b8f4ade8be4ba6ffc8f0408/FLAGdb2b98bbe [2021-12-16 09:03:34,790 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92f8d5bc1/9cd0eab33b8f4ade8be4ba6ffc8f0408 [2021-12-16 09:03:34,792 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-16 09:03:34,793 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-16 09:03:34,794 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-16 09:03:34,794 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-16 09:03:34,796 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-16 09:03:34,797 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 09:03:34" (1/1) ... [2021-12-16 09:03:34,797 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44ee73ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:03:34, skipping insertion in model container [2021-12-16 09:03:34,798 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 09:03:34" (1/1) ... [2021-12-16 09:03:34,802 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-16 09:03:34,811 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-16 09:03:34,923 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/Fibonacci03.c[788,801] [2021-12-16 09:03:34,924 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 09:03:34,931 INFO L203 MainTranslator]: Completed pre-run [2021-12-16 09:03:34,944 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/Fibonacci03.c[788,801] [2021-12-16 09:03:34,945 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 09:03:34,954 INFO L208 MainTranslator]: Completed translation [2021-12-16 09:03:34,954 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:03:34 WrapperNode [2021-12-16 09:03:34,954 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-16 09:03:34,955 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-16 09:03:34,955 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-16 09:03:34,955 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-16 09:03:34,960 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:03:34" (1/1) ... [2021-12-16 09:03:34,965 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:03:34" (1/1) ... [2021-12-16 09:03:34,977 INFO L137 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 26 [2021-12-16 09:03:34,978 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-16 09:03:34,978 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-16 09:03:34,979 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-16 09:03:34,979 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-16 09:03:34,983 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:03:34" (1/1) ... [2021-12-16 09:03:34,984 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:03:34" (1/1) ... [2021-12-16 09:03:34,992 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:03:34" (1/1) ... [2021-12-16 09:03:34,992 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:03:34" (1/1) ... [2021-12-16 09:03:34,997 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:03:34" (1/1) ... [2021-12-16 09:03:35,000 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:03:34" (1/1) ... [2021-12-16 09:03:35,001 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:03:34" (1/1) ... [2021-12-16 09:03:35,007 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-16 09:03:35,008 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-16 09:03:35,008 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-16 09:03:35,008 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-16 09:03:35,009 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:03:34" (1/1) ... [2021-12-16 09:03:35,014 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 09:03:35,023 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:03:35,032 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) [2021-12-16 09:03:35,038 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 [2021-12-16 09:03:35,063 INFO L130 BoogieDeclarations]: Found specification of procedure fibonacci [2021-12-16 09:03:35,063 INFO L138 BoogieDeclarations]: Found implementation of procedure fibonacci [2021-12-16 09:03:35,063 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-16 09:03:35,064 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-16 09:03:35,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-16 09:03:35,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-16 09:03:35,103 INFO L236 CfgBuilder]: Building ICFG [2021-12-16 09:03:35,104 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-16 09:03:35,214 INFO L277 CfgBuilder]: Performing block encoding [2021-12-16 09:03:35,219 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-16 09:03:35,219 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-16 09:03:35,231 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 09:03:35 BoogieIcfgContainer [2021-12-16 09:03:35,231 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-16 09:03:35,232 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-16 09:03:35,232 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-16 09:03:35,234 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-16 09:03:35,235 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 09:03:34" (1/3) ... [2021-12-16 09:03:35,235 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ec38861 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 09:03:35, skipping insertion in model container [2021-12-16 09:03:35,235 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:03:34" (2/3) ... [2021-12-16 09:03:35,236 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ec38861 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 09:03:35, skipping insertion in model container [2021-12-16 09:03:35,236 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 09:03:35" (3/3) ... [2021-12-16 09:03:35,237 INFO L111 eAbstractionObserver]: Analyzing ICFG Fibonacci03.c [2021-12-16 09:03:35,240 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-16 09:03:35,250 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-12-16 09:03:35,279 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-16 09:03:35,294 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 [2021-12-16 09:03:35,294 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-12-16 09:03:35,306 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) [2021-12-16 09:03:35,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-12-16 09:03:35,311 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 09:03:35,311 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 09:03:35,312 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-16 09:03:35,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:03:35,323 INFO L85 PathProgramCache]: Analyzing trace with hash 627182713, now seen corresponding path program 1 times [2021-12-16 09:03:35,329 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:03:35,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912553766] [2021-12-16 09:03:35,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:03:35,330 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:03:35,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:35,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:03:35,521 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 09:03:35,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912553766] [2021-12-16 09:03:35,523 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912553766] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 09:03:35,523 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 09:03:35,523 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 09:03:35,525 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31087396] [2021-12-16 09:03:35,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 09:03:35,528 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 09:03:35,530 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 09:03:35,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 09:03:35,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 09:03:35,565 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, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:03:35,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 09:03:35,648 INFO L93 Difference]: Finished difference Result 37 states and 40 transitions. [2021-12-16 09:03:35,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 09:03:35,650 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-12-16 09:03:35,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 09:03:35,658 INFO L225 Difference]: With dead ends: 37 [2021-12-16 09:03:35,658 INFO L226 Difference]: Without dead ends: 23 [2021-12-16 09:03:35,665 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 [2021-12-16 09:03:35,670 INFO L933 BasicCegarLoop]: 19 mSDtfsCounter, 38 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 09:03:35,671 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 49 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 09:03:35,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2021-12-16 09:03:35,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2021-12-16 09:03:35,699 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) [2021-12-16 09:03:35,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2021-12-16 09:03:35,702 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 8 [2021-12-16 09:03:35,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 09:03:35,703 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2021-12-16 09:03:35,704 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:03:35,704 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2021-12-16 09:03:35,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-12-16 09:03:35,705 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 09:03:35,705 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 09:03:35,706 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-16 09:03:35,706 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-16 09:03:35,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:03:35,709 INFO L85 PathProgramCache]: Analyzing trace with hash -2032172335, now seen corresponding path program 1 times [2021-12-16 09:03:35,709 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:03:35,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518064871] [2021-12-16 09:03:35,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:03:35,710 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:03:35,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:35,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:03:35,758 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 09:03:35,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518064871] [2021-12-16 09:03:35,758 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518064871] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 09:03:35,759 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 09:03:35,759 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-16 09:03:35,759 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693830581] [2021-12-16 09:03:35,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 09:03:35,760 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-16 09:03:35,761 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 09:03:35,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 09:03:35,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 09:03:35,763 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) [2021-12-16 09:03:35,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 09:03:35,777 INFO L93 Difference]: Finished difference Result 25 states and 29 transitions. [2021-12-16 09:03:35,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 09:03:35,777 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 [2021-12-16 09:03:35,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 09:03:35,779 INFO L225 Difference]: With dead ends: 25 [2021-12-16 09:03:35,779 INFO L226 Difference]: Without dead ends: 23 [2021-12-16 09:03:35,782 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 [2021-12-16 09:03:35,784 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 [2021-12-16 09:03:35,784 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] [2021-12-16 09:03:35,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2021-12-16 09:03:35,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 21. [2021-12-16 09:03:35,793 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) [2021-12-16 09:03:35,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2021-12-16 09:03:35,795 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 9 [2021-12-16 09:03:35,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 09:03:35,796 INFO L470 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2021-12-16 09:03:35,796 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) [2021-12-16 09:03:35,796 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2021-12-16 09:03:35,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-12-16 09:03:35,797 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 09:03:35,797 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] [2021-12-16 09:03:35,797 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-16 09:03:35,797 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-16 09:03:35,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:03:35,798 INFO L85 PathProgramCache]: Analyzing trace with hash -60677199, now seen corresponding path program 1 times [2021-12-16 09:03:35,798 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:03:35,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351376985] [2021-12-16 09:03:35,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:03:35,799 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:03:35,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:35,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-16 09:03:35,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:35,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-16 09:03:35,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:35,915 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-12-16 09:03:35,916 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 09:03:35,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351376985] [2021-12-16 09:03:35,916 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351376985] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 09:03:35,916 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 09:03:35,916 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 09:03:35,917 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642334773] [2021-12-16 09:03:35,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 09:03:35,917 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 09:03:35,917 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 09:03:35,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 09:03:35,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-16 09:03:35,918 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) [2021-12-16 09:03:35,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 09:03:35,955 INFO L93 Difference]: Finished difference Result 37 states and 43 transitions. [2021-12-16 09:03:35,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 09:03:35,955 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 24 [2021-12-16 09:03:35,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 09:03:35,956 INFO L225 Difference]: With dead ends: 37 [2021-12-16 09:03:35,957 INFO L226 Difference]: Without dead ends: 35 [2021-12-16 09:03:35,957 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 [2021-12-16 09:03:35,958 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 [2021-12-16 09:03:35,958 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] [2021-12-16 09:03:35,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2021-12-16 09:03:35,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 30. [2021-12-16 09:03:35,965 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) [2021-12-16 09:03:35,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 36 transitions. [2021-12-16 09:03:35,969 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 36 transitions. Word has length 24 [2021-12-16 09:03:35,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 09:03:35,969 INFO L470 AbstractCegarLoop]: Abstraction has 30 states and 36 transitions. [2021-12-16 09:03:35,970 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) [2021-12-16 09:03:35,970 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 36 transitions. [2021-12-16 09:03:35,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-12-16 09:03:35,971 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 09:03:35,971 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] [2021-12-16 09:03:35,971 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-16 09:03:35,971 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-16 09:03:35,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:03:35,972 INFO L85 PathProgramCache]: Analyzing trace with hash 2034782143, now seen corresponding path program 1 times [2021-12-16 09:03:35,972 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:03:35,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065126723] [2021-12-16 09:03:35,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:03:35,973 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:03:35,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:36,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-16 09:03:36,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:36,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-16 09:03:36,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:36,045 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-16 09:03:36,045 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 09:03:36,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065126723] [2021-12-16 09:03:36,046 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065126723] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 09:03:36,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [195623911] [2021-12-16 09:03:36,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:03:36,047 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 09:03:36,047 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:03:36,052 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) [2021-12-16 09:03:36,053 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-16 09:03:36,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:36,089 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-16 09:03:36,092 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:03:36,196 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-12-16 09:03:36,196 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-16 09:03:36,332 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-12-16 09:03:36,332 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [195623911] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-16 09:03:36,333 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-16 09:03:36,333 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7, 7] total 15 [2021-12-16 09:03:36,333 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663076283] [2021-12-16 09:03:36,333 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-16 09:03:36,334 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-12-16 09:03:36,335 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 09:03:36,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-12-16 09:03:36,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2021-12-16 09:03:36,337 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) [2021-12-16 09:03:36,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 09:03:36,593 INFO L93 Difference]: Finished difference Result 91 states and 129 transitions. [2021-12-16 09:03:36,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-16 09:03:36,594 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 [2021-12-16 09:03:36,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 09:03:36,595 INFO L225 Difference]: With dead ends: 91 [2021-12-16 09:03:36,595 INFO L226 Difference]: Without dead ends: 65 [2021-12-16 09:03:36,596 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 [2021-12-16 09:03:36,597 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 108 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-16 09:03:36,597 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 86 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-16 09:03:36,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2021-12-16 09:03:36,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 53. [2021-12-16 09:03:36,604 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) [2021-12-16 09:03:36,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 68 transitions. [2021-12-16 09:03:36,605 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 68 transitions. Word has length 31 [2021-12-16 09:03:36,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 09:03:36,605 INFO L470 AbstractCegarLoop]: Abstraction has 53 states and 68 transitions. [2021-12-16 09:03:36,606 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) [2021-12-16 09:03:36,606 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 68 transitions. [2021-12-16 09:03:36,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-12-16 09:03:36,607 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 09:03:36,607 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] [2021-12-16 09:03:36,624 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-12-16 09:03:36,823 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 [2021-12-16 09:03:36,824 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-16 09:03:36,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:03:36,824 INFO L85 PathProgramCache]: Analyzing trace with hash -603092359, now seen corresponding path program 2 times [2021-12-16 09:03:36,825 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:03:36,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566384289] [2021-12-16 09:03:36,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:03:36,825 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:03:36,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:36,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-16 09:03:36,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:36,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 09:03:36,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:36,886 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-12-16 09:03:36,887 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 09:03:36,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566384289] [2021-12-16 09:03:36,889 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566384289] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 09:03:36,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [622577873] [2021-12-16 09:03:36,889 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-16 09:03:36,889 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 09:03:36,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:03:36,890 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) [2021-12-16 09:03:36,891 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-16 09:03:36,927 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-16 09:03:36,928 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-16 09:03:36,928 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-16 09:03:36,929 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:03:36,983 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-12-16 09:03:36,983 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-16 09:03:36,983 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [622577873] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 09:03:36,983 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-16 09:03:36,984 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2021-12-16 09:03:36,984 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682107988] [2021-12-16 09:03:36,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 09:03:36,984 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 09:03:36,984 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 09:03:36,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 09:03:36,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-12-16 09:03:36,985 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) [2021-12-16 09:03:37,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 09:03:37,002 INFO L93 Difference]: Finished difference Result 61 states and 76 transitions. [2021-12-16 09:03:37,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 09:03:37,003 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 [2021-12-16 09:03:37,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 09:03:37,004 INFO L225 Difference]: With dead ends: 61 [2021-12-16 09:03:37,004 INFO L226 Difference]: Without dead ends: 60 [2021-12-16 09:03:37,005 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 [2021-12-16 09:03:37,005 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 [2021-12-16 09:03:37,006 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] [2021-12-16 09:03:37,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2021-12-16 09:03:37,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 55. [2021-12-16 09:03:37,011 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) [2021-12-16 09:03:37,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 70 transitions. [2021-12-16 09:03:37,012 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 70 transitions. Word has length 25 [2021-12-16 09:03:37,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 09:03:37,013 INFO L470 AbstractCegarLoop]: Abstraction has 55 states and 70 transitions. [2021-12-16 09:03:37,013 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) [2021-12-16 09:03:37,013 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 70 transitions. [2021-12-16 09:03:37,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-12-16 09:03:37,014 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 09:03:37,014 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] [2021-12-16 09:03:37,041 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-16 09:03:37,227 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 [2021-12-16 09:03:37,228 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting fibonacciErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-16 09:03:37,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:03:37,228 INFO L85 PathProgramCache]: Analyzing trace with hash -1515993891, now seen corresponding path program 1 times [2021-12-16 09:03:37,228 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:03:37,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262110961] [2021-12-16 09:03:37,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:03:37,228 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:03:37,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:37,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-16 09:03:37,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:37,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 09:03:37,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:37,282 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-12-16 09:03:37,282 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 09:03:37,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262110961] [2021-12-16 09:03:37,282 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262110961] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 09:03:37,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [196715145] [2021-12-16 09:03:37,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:03:37,283 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 09:03:37,283 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:03:37,284 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) [2021-12-16 09:03:37,306 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-16 09:03:37,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:37,318 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-16 09:03:37,319 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:03:37,374 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-12-16 09:03:37,375 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-16 09:03:37,433 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-12-16 09:03:37,434 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [196715145] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-16 09:03:37,434 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-16 09:03:37,434 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 11 [2021-12-16 09:03:37,434 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802818092] [2021-12-16 09:03:37,434 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-16 09:03:37,435 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-16 09:03:37,435 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 09:03:37,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-16 09:03:37,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2021-12-16 09:03:37,436 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) [2021-12-16 09:03:37,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 09:03:37,495 INFO L93 Difference]: Finished difference Result 70 states and 94 transitions. [2021-12-16 09:03:37,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-16 09:03:37,496 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 [2021-12-16 09:03:37,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 09:03:37,497 INFO L225 Difference]: With dead ends: 70 [2021-12-16 09:03:37,497 INFO L226 Difference]: Without dead ends: 69 [2021-12-16 09:03:37,497 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 [2021-12-16 09:03:37,498 INFO L933 BasicCegarLoop]: 28 mSDtfsCounter, 16 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 09:03:37,498 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 141 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 09:03:37,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2021-12-16 09:03:37,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 67. [2021-12-16 09:03:37,504 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) [2021-12-16 09:03:37,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 91 transitions. [2021-12-16 09:03:37,505 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 91 transitions. Word has length 26 [2021-12-16 09:03:37,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 09:03:37,506 INFO L470 AbstractCegarLoop]: Abstraction has 67 states and 91 transitions. [2021-12-16 09:03:37,506 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) [2021-12-16 09:03:37,506 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 91 transitions. [2021-12-16 09:03:37,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-12-16 09:03:37,507 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 09:03:37,507 INFO L514 BasicCegarLoop]: trace histogram [6, 5, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 09:03:37,527 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-16 09:03:37,723 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 [2021-12-16 09:03:37,723 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-16 09:03:37,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:03:37,724 INFO L85 PathProgramCache]: Analyzing trace with hash 1336761272, now seen corresponding path program 1 times [2021-12-16 09:03:37,724 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:03:37,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007931893] [2021-12-16 09:03:37,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:03:37,724 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:03:37,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:37,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-16 09:03:37,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:37,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:37,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:37,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:03:37,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:37,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-16 09:03:37,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:37,820 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-12-16 09:03:37,821 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 09:03:37,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007931893] [2021-12-16 09:03:37,823 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007931893] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 09:03:37,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1312363868] [2021-12-16 09:03:37,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:03:37,823 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 09:03:37,823 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:03:37,824 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) [2021-12-16 09:03:37,825 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-16 09:03:37,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:37,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-16 09:03:37,854 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:03:37,956 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2021-12-16 09:03:37,957 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-16 09:03:38,112 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-12-16 09:03:38,112 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1312363868] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-16 09:03:38,112 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-16 09:03:38,112 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 7] total 13 [2021-12-16 09:03:38,112 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832410339] [2021-12-16 09:03:38,112 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-16 09:03:38,113 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-12-16 09:03:38,113 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 09:03:38,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-12-16 09:03:38,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2021-12-16 09:03:38,113 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) [2021-12-16 09:03:38,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 09:03:38,237 INFO L93 Difference]: Finished difference Result 138 states and 205 transitions. [2021-12-16 09:03:38,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-12-16 09:03:38,237 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 14 states have internal predecessors, (37), 3 states have call successors, (4), 1 states have call predecessors, (4), 4 states have return successors, (8), 8 states have call predecessors, (8), 3 states have call successors, (8) Word has length 51 [2021-12-16 09:03:38,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 09:03:38,239 INFO L225 Difference]: With dead ends: 138 [2021-12-16 09:03:38,240 INFO L226 Difference]: Without dead ends: 137 [2021-12-16 09:03:38,240 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-16 09:03:38,241 INFO L933 BasicCegarLoop]: 25 mSDtfsCounter, 29 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-16 09:03:38,241 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 172 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-16 09:03:38,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2021-12-16 09:03:38,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 99. [2021-12-16 09:03:38,267 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) [2021-12-16 09:03:38,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 160 transitions. [2021-12-16 09:03:38,269 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 160 transitions. Word has length 51 [2021-12-16 09:03:38,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 09:03:38,269 INFO L470 AbstractCegarLoop]: Abstraction has 99 states and 160 transitions. [2021-12-16 09:03:38,270 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) [2021-12-16 09:03:38,270 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 160 transitions. [2021-12-16 09:03:38,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-12-16 09:03:38,272 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 09:03:38,272 INFO L514 BasicCegarLoop]: trace histogram [12, 9, 8, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1] [2021-12-16 09:03:38,294 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-16 09:03:38,487 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 [2021-12-16 09:03:38,487 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting fibonacciErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-16 09:03:38,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:03:38,488 INFO L85 PathProgramCache]: Analyzing trace with hash 1157418223, now seen corresponding path program 1 times [2021-12-16 09:03:38,488 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:03:38,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851458419] [2021-12-16 09:03:38,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:03:38,488 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:03:38,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:38,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-16 09:03:38,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:38,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:38,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:38,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:03:38,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:38,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-16 09:03:38,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:38,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:38,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:38,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:38,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:38,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-16 09:03:38,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:38,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 09:03:38,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:38,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-16 09:03:38,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:38,570 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 298 trivial. 0 not checked. [2021-12-16 09:03:38,571 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 09:03:38,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851458419] [2021-12-16 09:03:38,571 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851458419] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 09:03:38,571 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 09:03:38,571 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 09:03:38,571 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437001954] [2021-12-16 09:03:38,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 09:03:38,572 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 09:03:38,572 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 09:03:38,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 09:03:38,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-16 09:03:38,572 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) [2021-12-16 09:03:38,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 09:03:38,591 INFO L93 Difference]: Finished difference Result 112 states and 174 transitions. [2021-12-16 09:03:38,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 09:03:38,592 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 104 [2021-12-16 09:03:38,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 09:03:38,593 INFO L225 Difference]: With dead ends: 112 [2021-12-16 09:03:38,593 INFO L226 Difference]: Without dead ends: 111 [2021-12-16 09:03:38,593 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-16 09:03:38,594 INFO L933 BasicCegarLoop]: 23 mSDtfsCounter, 5 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 09:03:38,594 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 77 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 09:03:38,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2021-12-16 09:03:38,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 99. [2021-12-16 09:03:38,609 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) [2021-12-16 09:03:38,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 160 transitions. [2021-12-16 09:03:38,613 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 160 transitions. Word has length 104 [2021-12-16 09:03:38,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 09:03:38,614 INFO L470 AbstractCegarLoop]: Abstraction has 99 states and 160 transitions. [2021-12-16 09:03:38,614 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) [2021-12-16 09:03:38,614 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 160 transitions. [2021-12-16 09:03:38,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-12-16 09:03:38,615 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 09:03:38,616 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] [2021-12-16 09:03:38,616 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-16 09:03:38,616 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting fibonacciErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-16 09:03:38,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:03:38,616 INFO L85 PathProgramCache]: Analyzing trace with hash 53232581, now seen corresponding path program 2 times [2021-12-16 09:03:38,616 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:03:38,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246172619] [2021-12-16 09:03:38,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:03:38,617 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:03:38,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:38,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-16 09:03:38,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:38,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:38,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:38,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:38,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:38,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:03:38,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:38,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 09:03:38,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:38,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-16 09:03:38,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:38,668 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2021-12-16 09:03:38,669 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 09:03:38,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246172619] [2021-12-16 09:03:38,669 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246172619] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 09:03:38,669 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 09:03:38,669 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 09:03:38,669 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922180732] [2021-12-16 09:03:38,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 09:03:38,670 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 09:03:38,670 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 09:03:38,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 09:03:38,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-16 09:03:38,671 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) [2021-12-16 09:03:38,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 09:03:38,691 INFO L93 Difference]: Finished difference Result 112 states and 174 transitions. [2021-12-16 09:03:38,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 09:03:38,691 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 [2021-12-16 09:03:38,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 09:03:38,693 INFO L225 Difference]: With dead ends: 112 [2021-12-16 09:03:38,693 INFO L226 Difference]: Without dead ends: 111 [2021-12-16 09:03:38,694 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 [2021-12-16 09:03:38,695 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 6 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 09:03:38,695 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 51 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 09:03:38,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2021-12-16 09:03:38,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 99. [2021-12-16 09:03:38,724 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) [2021-12-16 09:03:38,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 160 transitions. [2021-12-16 09:03:38,727 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 160 transitions. Word has length 65 [2021-12-16 09:03:38,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 09:03:38,728 INFO L470 AbstractCegarLoop]: Abstraction has 99 states and 160 transitions. [2021-12-16 09:03:38,728 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) [2021-12-16 09:03:38,728 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 160 transitions. [2021-12-16 09:03:38,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-12-16 09:03:38,730 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 09:03:38,730 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] [2021-12-16 09:03:38,731 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-16 09:03:38,731 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-16 09:03:38,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:03:38,731 INFO L85 PathProgramCache]: Analyzing trace with hash -1501153665, now seen corresponding path program 2 times [2021-12-16 09:03:38,731 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:03:38,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680425632] [2021-12-16 09:03:38,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:03:38,732 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:03:38,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:38,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-16 09:03:38,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:38,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:38,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:38,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:38,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:38,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-16 09:03:38,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:38,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 09:03:38,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:38,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-16 09:03:38,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:38,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:38,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:38,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:03:38,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:38,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-16 09:03:38,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:38,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:38,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:38,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:38,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:38,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:03:38,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:38,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 09:03:38,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:38,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:38,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:38,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:38,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:38,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:03:38,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:38,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 09:03:38,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:38,890 INFO L134 CoverageAnalysis]: Checked inductivity of 1021 backedges. 59 proven. 270 refuted. 0 times theorem prover too weak. 692 trivial. 0 not checked. [2021-12-16 09:03:38,890 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 09:03:38,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680425632] [2021-12-16 09:03:38,890 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680425632] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 09:03:38,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1480117933] [2021-12-16 09:03:38,891 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-16 09:03:38,891 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 09:03:38,891 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:03:38,908 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) [2021-12-16 09:03:38,909 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-16 09:03:38,977 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-16 09:03:38,977 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-16 09:03:38,979 INFO L263 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 12 conjunts are in the unsatisfiable core [2021-12-16 09:03:38,982 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:03:39,276 INFO L134 CoverageAnalysis]: Checked inductivity of 1021 backedges. 593 proven. 113 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked. [2021-12-16 09:03:39,276 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-16 09:03:39,761 INFO L134 CoverageAnalysis]: Checked inductivity of 1021 backedges. 75 proven. 438 refuted. 0 times theorem prover too weak. 508 trivial. 0 not checked. [2021-12-16 09:03:39,761 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1480117933] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-16 09:03:39,761 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-16 09:03:39,761 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 10, 12] total 17 [2021-12-16 09:03:39,761 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013957075] [2021-12-16 09:03:39,762 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-16 09:03:39,762 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-12-16 09:03:39,762 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 09:03:39,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-12-16 09:03:39,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=216, Unknown=0, NotChecked=0, Total=272 [2021-12-16 09:03:39,763 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) [2021-12-16 09:03:39,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 09:03:39,892 INFO L93 Difference]: Finished difference Result 177 states and 305 transitions. [2021-12-16 09:03:39,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-16 09:03:39,892 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 [2021-12-16 09:03:39,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 09:03:39,893 INFO L225 Difference]: With dead ends: 177 [2021-12-16 09:03:39,893 INFO L226 Difference]: Without dead ends: 82 [2021-12-16 09:03:39,894 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 399 GetRequests, 372 SyntacticMatches, 5 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=157, Invalid=395, Unknown=0, NotChecked=0, Total=552 [2021-12-16 09:03:39,895 INFO L933 BasicCegarLoop]: 16 mSDtfsCounter, 146 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-16 09:03:39,895 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 76 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-16 09:03:39,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2021-12-16 09:03:39,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 79. [2021-12-16 09:03:39,899 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) [2021-12-16 09:03:39,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 103 transitions. [2021-12-16 09:03:39,899 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 103 transitions. Word has length 175 [2021-12-16 09:03:39,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 09:03:39,900 INFO L470 AbstractCegarLoop]: Abstraction has 79 states and 103 transitions. [2021-12-16 09:03:39,900 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) [2021-12-16 09:03:39,900 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 103 transitions. [2021-12-16 09:03:39,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2021-12-16 09:03:39,901 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 09:03:39,901 INFO L514 BasicCegarLoop]: trace histogram [18, 15, 15, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 6, 6, 6, 3, 1, 1, 1, 1, 1] [2021-12-16 09:03:39,918 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-12-16 09:03:40,115 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 [2021-12-16 09:03:40,115 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-16 09:03:40,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:03:40,116 INFO L85 PathProgramCache]: Analyzing trace with hash 297813178, now seen corresponding path program 3 times [2021-12-16 09:03:40,116 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:03:40,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920396719] [2021-12-16 09:03:40,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:03:40,116 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:03:40,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:40,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-16 09:03:40,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:40,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:40,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:40,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:40,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:40,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:03:40,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:40,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 09:03:40,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:40,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-16 09:03:40,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:40,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:40,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:40,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:40,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:40,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:03:40,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:40,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 09:03:40,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:40,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-16 09:03:40,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:40,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:40,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:40,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:40,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:40,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:03:40,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:40,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 09:03:40,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:40,292 INFO L134 CoverageAnalysis]: Checked inductivity of 898 backedges. 123 proven. 343 refuted. 0 times theorem prover too weak. 432 trivial. 0 not checked. [2021-12-16 09:03:40,292 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 09:03:40,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920396719] [2021-12-16 09:03:40,293 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920396719] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 09:03:40,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [159515204] [2021-12-16 09:03:40,293 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-16 09:03:40,293 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 09:03:40,293 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:03:40,294 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) [2021-12-16 09:03:40,295 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-16 09:03:40,338 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2021-12-16 09:03:40,338 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-16 09:03:40,339 INFO L263 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-16 09:03:40,341 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:03:40,538 INFO L134 CoverageAnalysis]: Checked inductivity of 898 backedges. 276 proven. 89 refuted. 0 times theorem prover too weak. 533 trivial. 0 not checked. [2021-12-16 09:03:40,539 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-16 09:03:40,978 INFO L134 CoverageAnalysis]: Checked inductivity of 898 backedges. 276 proven. 92 refuted. 0 times theorem prover too weak. 530 trivial. 0 not checked. [2021-12-16 09:03:40,978 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [159515204] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-16 09:03:40,978 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-16 09:03:40,978 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 9, 11] total 21 [2021-12-16 09:03:40,978 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402572498] [2021-12-16 09:03:40,979 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-16 09:03:40,979 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-12-16 09:03:40,979 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 09:03:40,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-12-16 09:03:40,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=316, Unknown=0, NotChecked=0, Total=420 [2021-12-16 09:03:40,980 INFO L87 Difference]: Start difference. First operand 79 states and 103 transitions. Second operand has 21 states, 21 states have (on average 5.095238095238095) internal successors, (107), 21 states have internal predecessors, (107), 12 states have call successors, (20), 2 states have call predecessors, (20), 7 states have return successors, (20), 14 states have call predecessors, (20), 12 states have call successors, (20) [2021-12-16 09:03:41,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 09:03:41,162 INFO L93 Difference]: Finished difference Result 161 states and 233 transitions. [2021-12-16 09:03:41,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-16 09:03:41,163 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 5.095238095238095) internal successors, (107), 21 states have internal predecessors, (107), 12 states have call successors, (20), 2 states have call predecessors, (20), 7 states have return successors, (20), 14 states have call predecessors, (20), 12 states have call successors, (20) Word has length 164 [2021-12-16 09:03:41,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 09:03:41,164 INFO L225 Difference]: With dead ends: 161 [2021-12-16 09:03:41,164 INFO L226 Difference]: Without dead ends: 86 [2021-12-16 09:03:41,165 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 381 GetRequests, 351 SyntacticMatches, 2 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=247, Invalid=623, Unknown=0, NotChecked=0, Total=870 [2021-12-16 09:03:41,165 INFO L933 BasicCegarLoop]: 23 mSDtfsCounter, 187 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-16 09:03:41,165 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [187 Valid, 95 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-16 09:03:41,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2021-12-16 09:03:41,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 73. [2021-12-16 09:03:41,168 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) [2021-12-16 09:03:41,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 88 transitions. [2021-12-16 09:03:41,169 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 88 transitions. Word has length 164 [2021-12-16 09:03:41,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 09:03:41,169 INFO L470 AbstractCegarLoop]: Abstraction has 73 states and 88 transitions. [2021-12-16 09:03:41,170 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 5.095238095238095) internal successors, (107), 21 states have internal predecessors, (107), 12 states have call successors, (20), 2 states have call predecessors, (20), 7 states have return successors, (20), 14 states have call predecessors, (20), 12 states have call successors, (20) [2021-12-16 09:03:41,170 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 88 transitions. [2021-12-16 09:03:41,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-12-16 09:03:41,170 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 09:03:41,170 INFO L514 BasicCegarLoop]: trace histogram [9, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1] [2021-12-16 09:03:41,190 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-12-16 09:03:41,387 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 [2021-12-16 09:03:41,387 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-16 09:03:41,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:03:41,388 INFO L85 PathProgramCache]: Analyzing trace with hash -1570138642, now seen corresponding path program 4 times [2021-12-16 09:03:41,388 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:03:41,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625435229] [2021-12-16 09:03:41,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:03:41,388 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:03:41,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:41,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-16 09:03:41,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:41,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:41,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:41,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:41,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:41,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:41,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:41,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:03:41,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:41,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 09:03:41,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:41,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-16 09:03:41,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:41,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-16 09:03:41,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:41,479 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 95 proven. 40 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2021-12-16 09:03:41,479 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 09:03:41,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625435229] [2021-12-16 09:03:41,480 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625435229] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 09:03:41,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [734377987] [2021-12-16 09:03:41,480 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-12-16 09:03:41,480 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 09:03:41,480 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:03:41,481 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) [2021-12-16 09:03:41,514 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-16 09:03:41,528 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-12-16 09:03:41,528 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-16 09:03:41,529 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-16 09:03:41,530 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:03:41,674 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 123 proven. 37 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2021-12-16 09:03:41,674 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-16 09:03:42,087 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 88 proven. 62 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2021-12-16 09:03:42,087 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [734377987] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-16 09:03:42,087 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-16 09:03:42,087 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 11] total 17 [2021-12-16 09:03:42,087 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155970922] [2021-12-16 09:03:42,088 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-16 09:03:42,088 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-12-16 09:03:42,088 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 09:03:42,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-12-16 09:03:42,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2021-12-16 09:03:42,089 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) [2021-12-16 09:03:42,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 09:03:42,167 INFO L93 Difference]: Finished difference Result 132 states and 162 transitions. [2021-12-16 09:03:42,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-16 09:03:42,168 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 85 [2021-12-16 09:03:42,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 09:03:42,168 INFO L225 Difference]: With dead ends: 132 [2021-12-16 09:03:42,168 INFO L226 Difference]: Without dead ends: 65 [2021-12-16 09:03:42,169 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 180 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=121, Invalid=259, Unknown=0, NotChecked=0, Total=380 [2021-12-16 09:03:42,169 INFO L933 BasicCegarLoop]: 28 mSDtfsCounter, 82 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-16 09:03:42,169 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [84 Valid, 83 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-16 09:03:42,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2021-12-16 09:03:42,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2021-12-16 09:03:42,171 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) [2021-12-16 09:03:42,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 73 transitions. [2021-12-16 09:03:42,172 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 73 transitions. Word has length 85 [2021-12-16 09:03:42,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 09:03:42,172 INFO L470 AbstractCegarLoop]: Abstraction has 65 states and 73 transitions. [2021-12-16 09:03:42,172 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) [2021-12-16 09:03:42,172 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 73 transitions. [2021-12-16 09:03:42,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-12-16 09:03:42,173 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 09:03:42,173 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] [2021-12-16 09:03:42,192 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-12-16 09:03:42,383 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 [2021-12-16 09:03:42,383 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting fibonacciErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-16 09:03:42,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:03:42,384 INFO L85 PathProgramCache]: Analyzing trace with hash -486789354, now seen corresponding path program 3 times [2021-12-16 09:03:42,384 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:03:42,384 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816450179] [2021-12-16 09:03:42,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:03:42,384 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:03:42,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:42,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-16 09:03:42,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:42,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:42,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:42,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:42,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:42,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:03:42,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:42,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 09:03:42,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:42,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-16 09:03:42,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:42,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:42,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:42,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:03:42,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:42,471 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 38 proven. 23 refuted. 0 times theorem prover too weak. 185 trivial. 0 not checked. [2021-12-16 09:03:42,471 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 09:03:42,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816450179] [2021-12-16 09:03:42,471 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816450179] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 09:03:42,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [402603926] [2021-12-16 09:03:42,471 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-16 09:03:42,471 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 09:03:42,472 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:03:42,472 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) [2021-12-16 09:03:42,508 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-12-16 09:03:42,518 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-12-16 09:03:42,518 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-16 09:03:42,519 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-16 09:03:42,520 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:03:42,671 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 62 proven. 5 refuted. 0 times theorem prover too weak. 179 trivial. 0 not checked. [2021-12-16 09:03:42,672 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-16 09:03:42,855 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 62 proven. 5 refuted. 0 times theorem prover too weak. 179 trivial. 0 not checked. [2021-12-16 09:03:42,855 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [402603926] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-16 09:03:42,856 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-16 09:03:42,856 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 7] total 14 [2021-12-16 09:03:42,856 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240127029] [2021-12-16 09:03:42,856 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-16 09:03:42,856 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-12-16 09:03:42,856 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 09:03:42,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-12-16 09:03:42,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2021-12-16 09:03:42,857 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) [2021-12-16 09:03:42,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 09:03:42,931 INFO L93 Difference]: Finished difference Result 65 states and 73 transitions. [2021-12-16 09:03:42,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-16 09:03:42,932 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 [2021-12-16 09:03:42,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 09:03:42,932 INFO L225 Difference]: With dead ends: 65 [2021-12-16 09:03:42,932 INFO L226 Difference]: Without dead ends: 64 [2021-12-16 09:03:42,933 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 [2021-12-16 09:03:42,934 INFO L933 BasicCegarLoop]: 27 mSDtfsCounter, 9 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 09:03:42,934 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 172 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 09:03:42,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2021-12-16 09:03:42,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2021-12-16 09:03:42,939 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) [2021-12-16 09:03:42,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 72 transitions. [2021-12-16 09:03:42,940 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 72 transitions. Word has length 91 [2021-12-16 09:03:42,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 09:03:42,940 INFO L470 AbstractCegarLoop]: Abstraction has 64 states and 72 transitions. [2021-12-16 09:03:42,940 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) [2021-12-16 09:03:42,941 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 72 transitions. [2021-12-16 09:03:42,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-12-16 09:03:42,942 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 09:03:42,942 INFO L514 BasicCegarLoop]: trace histogram [13, 12, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 3, 1, 1, 1, 1, 1] [2021-12-16 09:03:42,963 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-12-16 09:03:43,163 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 [2021-12-16 09:03:43,164 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-16 09:03:43,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:03:43,164 INFO L85 PathProgramCache]: Analyzing trace with hash 1461335952, now seen corresponding path program 5 times [2021-12-16 09:03:43,164 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:03:43,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984251233] [2021-12-16 09:03:43,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:03:43,165 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:03:43,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:43,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-16 09:03:43,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:43,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:43,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:43,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:43,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:43,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:43,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:43,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:03:43,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:43,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 09:03:43,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:43,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-16 09:03:43,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:43,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:43,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:43,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:03:43,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:43,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-16 09:03:43,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:43,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:43,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:43,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:03:43,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:43,288 INFO L134 CoverageAnalysis]: Checked inductivity of 478 backedges. 197 proven. 68 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2021-12-16 09:03:43,288 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 09:03:43,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984251233] [2021-12-16 09:03:43,288 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984251233] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 09:03:43,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [491139182] [2021-12-16 09:03:43,288 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-12-16 09:03:43,288 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 09:03:43,289 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:03:43,304 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) [2021-12-16 09:03:43,305 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-12-16 09:03:43,356 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2021-12-16 09:03:43,356 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-16 09:03:43,357 INFO L263 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 12 conjunts are in the unsatisfiable core [2021-12-16 09:03:43,359 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:03:43,567 INFO L134 CoverageAnalysis]: Checked inductivity of 478 backedges. 158 proven. 137 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2021-12-16 09:03:43,567 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-16 09:03:44,081 INFO L134 CoverageAnalysis]: Checked inductivity of 478 backedges. 162 proven. 142 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2021-12-16 09:03:44,082 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [491139182] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-16 09:03:44,082 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-16 09:03:44,082 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 13] total 20 [2021-12-16 09:03:44,082 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713279419] [2021-12-16 09:03:44,082 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-16 09:03:44,082 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-12-16 09:03:44,082 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 09:03:44,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-12-16 09:03:44,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=283, Unknown=0, NotChecked=0, Total=380 [2021-12-16 09:03:44,083 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) [2021-12-16 09:03:44,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 09:03:44,260 INFO L93 Difference]: Finished difference Result 131 states and 156 transitions. [2021-12-16 09:03:44,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-16 09:03:44,260 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 5.2) internal successors, (104), 20 states have internal predecessors, (104), 12 states have call successors, (18), 1 states have call predecessors, (18), 7 states have return successors, (20), 12 states have call predecessors, (20), 12 states have call successors, (20) Word has length 123 [2021-12-16 09:03:44,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 09:03:44,261 INFO L225 Difference]: With dead ends: 131 [2021-12-16 09:03:44,261 INFO L226 Difference]: Without dead ends: 73 [2021-12-16 09:03:44,261 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 259 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2021-12-16 09:03:44,262 INFO L933 BasicCegarLoop]: 34 mSDtfsCounter, 109 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-16 09:03:44,262 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 125 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-16 09:03:44,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2021-12-16 09:03:44,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 70. [2021-12-16 09:03:44,265 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) [2021-12-16 09:03:44,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 80 transitions. [2021-12-16 09:03:44,266 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 80 transitions. Word has length 123 [2021-12-16 09:03:44,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 09:03:44,266 INFO L470 AbstractCegarLoop]: Abstraction has 70 states and 80 transitions. [2021-12-16 09:03:44,266 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) [2021-12-16 09:03:44,267 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 80 transitions. [2021-12-16 09:03:44,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2021-12-16 09:03:44,268 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 09:03:44,268 INFO L514 BasicCegarLoop]: trace histogram [16, 14, 13, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 3, 1, 1, 1, 1, 1] [2021-12-16 09:03:44,306 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-12-16 09:03:44,471 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 [2021-12-16 09:03:44,471 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-16 09:03:44,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:03:44,472 INFO L85 PathProgramCache]: Analyzing trace with hash 111090145, now seen corresponding path program 6 times [2021-12-16 09:03:44,472 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:03:44,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893787660] [2021-12-16 09:03:44,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:03:44,472 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:03:44,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:44,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-16 09:03:44,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:44,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:44,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:44,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:44,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:44,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:44,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:44,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:03:44,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:44,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 09:03:44,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:44,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-16 09:03:44,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:44,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:44,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:44,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:03:44,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:44,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-16 09:03:44,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:44,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:44,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:44,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:44,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:44,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:03:44,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:44,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 09:03:44,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:44,687 INFO L134 CoverageAnalysis]: Checked inductivity of 725 backedges. 78 proven. 129 refuted. 0 times theorem prover too weak. 518 trivial. 0 not checked. [2021-12-16 09:03:44,687 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 09:03:44,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893787660] [2021-12-16 09:03:44,687 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893787660] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 09:03:44,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [776596255] [2021-12-16 09:03:44,688 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-12-16 09:03:44,688 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 09:03:44,688 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:03:44,704 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) [2021-12-16 09:03:44,707 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-12-16 09:03:44,778 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 13 check-sat command(s) [2021-12-16 09:03:44,778 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-16 09:03:44,780 INFO L263 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 29 conjunts are in the unsatisfiable core [2021-12-16 09:03:44,782 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:03:45,082 INFO L134 CoverageAnalysis]: Checked inductivity of 725 backedges. 78 proven. 129 refuted. 0 times theorem prover too weak. 518 trivial. 0 not checked. [2021-12-16 09:03:45,083 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-16 09:03:45,980 INFO L134 CoverageAnalysis]: Checked inductivity of 725 backedges. 144 proven. 122 refuted. 0 times theorem prover too weak. 459 trivial. 0 not checked. [2021-12-16 09:03:45,980 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [776596255] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-16 09:03:45,980 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-16 09:03:45,980 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 17] total 26 [2021-12-16 09:03:45,980 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883884835] [2021-12-16 09:03:45,981 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-16 09:03:45,981 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-12-16 09:03:45,981 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 09:03:45,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-12-16 09:03:45,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=168, Invalid=534, Unknown=0, NotChecked=0, Total=702 [2021-12-16 09:03:45,982 INFO L87 Difference]: Start difference. First operand 70 states and 80 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) [2021-12-16 09:03:46,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 09:03:46,112 INFO L93 Difference]: Finished difference Result 117 states and 153 transitions. [2021-12-16 09:03:46,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-12-16 09:03:46,112 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 2.6538461538461537) internal successors, (69), 27 states have internal predecessors, (69), 7 states have call successors, (8), 1 states have call predecessors, (8), 7 states have return successors, (18), 18 states have call predecessors, (18), 7 states have call successors, (18) Word has length 149 [2021-12-16 09:03:46,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 09:03:46,114 INFO L225 Difference]: With dead ends: 117 [2021-12-16 09:03:46,114 INFO L226 Difference]: Without dead ends: 116 [2021-12-16 09:03:46,116 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 358 GetRequests, 328 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 365 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=231, Invalid=761, Unknown=0, NotChecked=0, Total=992 [2021-12-16 09:03:46,117 INFO L933 BasicCegarLoop]: 29 mSDtfsCounter, 41 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-16 09:03:46,118 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 270 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-16 09:03:46,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2021-12-16 09:03:46,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 97. [2021-12-16 09:03:46,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 77 states have (on average 1.0389610389610389) internal successors, (80), 75 states have internal predecessors, (80), 11 states have call successors, (11), 7 states have call predecessors, (11), 8 states have return successors, (37), 14 states have call predecessors, (37), 10 states have call successors, (37) [2021-12-16 09:03:46,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 128 transitions. [2021-12-16 09:03:46,123 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 128 transitions. Word has length 149 [2021-12-16 09:03:46,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 09:03:46,124 INFO L470 AbstractCegarLoop]: Abstraction has 97 states and 128 transitions. [2021-12-16 09:03:46,124 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) [2021-12-16 09:03:46,124 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 128 transitions. [2021-12-16 09:03:46,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 478 [2021-12-16 09:03:46,128 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 09:03:46,128 INFO L514 BasicCegarLoop]: trace histogram [50, 47, 40, 25, 25, 25, 25, 24, 24, 24, 24, 24, 23, 23, 22, 22, 15, 10, 1, 1, 1, 1, 1] [2021-12-16 09:03:46,157 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-12-16 09:03:46,347 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 [2021-12-16 09:03:46,347 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-16 09:03:46,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:03:46,348 INFO L85 PathProgramCache]: Analyzing trace with hash -1205933040, now seen corresponding path program 7 times [2021-12-16 09:03:46,348 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:03:46,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840357573] [2021-12-16 09:03:46,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:03:46,348 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:03:46,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:46,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-16 09:03:46,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:46,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:46,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:46,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:46,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:46,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:46,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:46,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:03:46,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:46,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 09:03:46,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:46,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-16 09:03:46,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:46,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:46,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:46,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:03:46,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:46,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-16 09:03:46,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:46,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:46,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:46,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:46,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:46,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:46,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:46,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:03:46,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:46,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 09:03:46,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:46,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-16 09:03:46,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:46,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:46,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:46,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:03:46,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:46,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-12-16 09:03:46,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:46,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:46,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:46,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:46,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:46,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:46,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:46,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:46,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:46,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:03:46,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:46,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 09:03:46,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:46,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-16 09:03:46,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:46,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:46,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:46,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:03:46,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:46,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-16 09:03:46,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:46,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:46,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:46,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:46,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:46,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:46,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:46,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:46,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:46,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:03:46,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:46,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 09:03:46,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:46,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-16 09:03:46,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:46,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:46,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:46,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:03:46,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:46,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-16 09:03:46,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:46,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:46,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:46,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:46,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:46,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:46,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:46,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:03:46,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:46,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 09:03:46,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:46,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-16 09:03:46,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:46,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:46,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:46,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:03:46,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:46,686 INFO L134 CoverageAnalysis]: Checked inductivity of 8133 backedges. 393 proven. 1669 refuted. 0 times theorem prover too weak. 6071 trivial. 0 not checked. [2021-12-16 09:03:46,687 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 09:03:46,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840357573] [2021-12-16 09:03:46,687 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840357573] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 09:03:46,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [144021457] [2021-12-16 09:03:46,687 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-12-16 09:03:46,687 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 09:03:46,687 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:03:46,688 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) [2021-12-16 09:03:46,689 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-12-16 09:03:46,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:46,830 INFO L263 TraceCheckSpWp]: Trace formula consists of 905 conjuncts, 18 conjunts are in the unsatisfiable core [2021-12-16 09:03:46,835 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:03:47,403 INFO L134 CoverageAnalysis]: Checked inductivity of 8133 backedges. 4262 proven. 533 refuted. 0 times theorem prover too weak. 3338 trivial. 0 not checked. [2021-12-16 09:03:47,403 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-16 09:03:48,667 INFO L134 CoverageAnalysis]: Checked inductivity of 8133 backedges. 335 proven. 2406 refuted. 0 times theorem prover too weak. 5392 trivial. 0 not checked. [2021-12-16 09:03:48,667 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [144021457] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-16 09:03:48,668 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-16 09:03:48,668 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13, 18] total 26 [2021-12-16 09:03:48,668 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553740168] [2021-12-16 09:03:48,668 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-16 09:03:48,670 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-12-16 09:03:48,670 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 09:03:48,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-12-16 09:03:48,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=159, Invalid=491, Unknown=0, NotChecked=0, Total=650 [2021-12-16 09:03:48,672 INFO L87 Difference]: Start difference. First operand 97 states and 128 transitions. Second operand has 26 states, 26 states have (on average 5.884615384615385) internal successors, (153), 26 states have internal predecessors, (153), 22 states have call successors, (29), 3 states have call predecessors, (29), 9 states have return successors, (34), 14 states have call predecessors, (34), 21 states have call successors, (34) [2021-12-16 09:03:48,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 09:03:48,882 INFO L93 Difference]: Finished difference Result 211 states and 305 transitions. [2021-12-16 09:03:48,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-12-16 09:03:48,883 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.884615384615385) internal successors, (153), 26 states have internal predecessors, (153), 22 states have call successors, (29), 3 states have call predecessors, (29), 9 states have return successors, (34), 14 states have call predecessors, (34), 21 states have call successors, (34) Word has length 477 [2021-12-16 09:03:48,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 09:03:48,884 INFO L225 Difference]: With dead ends: 211 [2021-12-16 09:03:48,884 INFO L226 Difference]: Without dead ends: 120 [2021-12-16 09:03:48,885 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1076 GetRequests, 1037 SyntacticMatches, 2 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 376 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=428, Invalid=1054, Unknown=0, NotChecked=0, Total=1482 [2021-12-16 09:03:48,885 INFO L933 BasicCegarLoop]: 23 mSDtfsCounter, 191 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-16 09:03:48,886 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [191 Valid, 108 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-16 09:03:48,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2021-12-16 09:03:48,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 103. [2021-12-16 09:03:48,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 82 states have (on average 1.0365853658536586) internal successors, (85), 80 states have internal predecessors, (85), 12 states have call successors, (12), 8 states have call predecessors, (12), 8 states have return successors, (34), 14 states have call predecessors, (34), 11 states have call successors, (34) [2021-12-16 09:03:48,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 131 transitions. [2021-12-16 09:03:48,891 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 131 transitions. Word has length 477 [2021-12-16 09:03:48,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 09:03:48,892 INFO L470 AbstractCegarLoop]: Abstraction has 103 states and 131 transitions. [2021-12-16 09:03:48,892 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.884615384615385) internal successors, (153), 26 states have internal predecessors, (153), 22 states have call successors, (29), 3 states have call predecessors, (29), 9 states have return successors, (34), 14 states have call predecessors, (34), 21 states have call successors, (34) [2021-12-16 09:03:48,892 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 131 transitions. [2021-12-16 09:03:48,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2021-12-16 09:03:48,894 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 09:03:48,895 INFO L514 BasicCegarLoop]: trace histogram [32, 30, 26, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 14, 14, 10, 6, 1, 1, 1, 1, 1] [2021-12-16 09:03:48,934 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-12-16 09:03:49,107 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 [2021-12-16 09:03:49,107 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-16 09:03:49,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:03:49,108 INFO L85 PathProgramCache]: Analyzing trace with hash -1438443897, now seen corresponding path program 8 times [2021-12-16 09:03:49,108 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:03:49,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331848336] [2021-12-16 09:03:49,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:03:49,108 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:03:49,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:49,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-16 09:03:49,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:49,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:49,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:49,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:49,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:49,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:49,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:49,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:49,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:49,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:03:49,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:49,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 09:03:49,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:49,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-16 09:03:49,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:49,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:49,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:49,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:03:49,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:49,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-16 09:03:49,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:49,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:49,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:49,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:49,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:49,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:03:49,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:49,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 09:03:49,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:49,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-16 09:03:49,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:49,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:49,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:49,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:49,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:49,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:49,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:49,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:49,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:49,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:03:49,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:49,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 09:03:49,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:49,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-16 09:03:49,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:49,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:49,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:49,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:03:49,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:49,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-16 09:03:49,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:49,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:49,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:49,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:49,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:49,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:03:49,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:49,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 09:03:49,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:49,400 INFO L134 CoverageAnalysis]: Checked inductivity of 3268 backedges. 534 proven. 998 refuted. 0 times theorem prover too weak. 1736 trivial. 0 not checked. [2021-12-16 09:03:49,400 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 09:03:49,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331848336] [2021-12-16 09:03:49,400 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331848336] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 09:03:49,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2033370401] [2021-12-16 09:03:49,401 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-16 09:03:49,401 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 09:03:49,401 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:03:49,402 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) [2021-12-16 09:03:49,427 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-12-16 09:03:49,503 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-16 09:03:49,503 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-16 09:03:49,506 INFO L263 TraceCheckSpWp]: Trace formula consists of 589 conjuncts, 22 conjunts are in the unsatisfiable core [2021-12-16 09:03:49,508 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:03:49,901 INFO L134 CoverageAnalysis]: Checked inductivity of 3268 backedges. 599 proven. 1181 refuted. 0 times theorem prover too weak. 1488 trivial. 0 not checked. [2021-12-16 09:03:49,902 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-16 09:03:51,359 INFO L134 CoverageAnalysis]: Checked inductivity of 3268 backedges. 599 proven. 1253 refuted. 0 times theorem prover too weak. 1416 trivial. 0 not checked. [2021-12-16 09:03:51,360 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2033370401] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-16 09:03:51,360 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-16 09:03:51,360 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 15, 23] total 33 [2021-12-16 09:03:51,360 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585096535] [2021-12-16 09:03:51,360 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-16 09:03:51,361 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2021-12-16 09:03:51,361 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 09:03:51,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-12-16 09:03:51,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=257, Invalid=799, Unknown=0, NotChecked=0, Total=1056 [2021-12-16 09:03:51,362 INFO L87 Difference]: Start difference. First operand 103 states and 131 transitions. Second operand has 33 states, 33 states have (on average 5.121212121212121) internal successors, (169), 33 states have internal predecessors, (169), 27 states have call successors, (31), 1 states have call predecessors, (31), 11 states have return successors, (42), 18 states have call predecessors, (42), 27 states have call successors, (42) [2021-12-16 09:03:51,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 09:03:51,718 INFO L93 Difference]: Finished difference Result 239 states and 328 transitions. [2021-12-16 09:03:51,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-12-16 09:03:51,719 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 5.121212121212121) internal successors, (169), 33 states have internal predecessors, (169), 27 states have call successors, (31), 1 states have call predecessors, (31), 11 states have return successors, (42), 18 states have call predecessors, (42), 27 states have call successors, (42) Word has length 306 [2021-12-16 09:03:51,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 09:03:51,720 INFO L225 Difference]: With dead ends: 239 [2021-12-16 09:03:51,720 INFO L226 Difference]: Without dead ends: 142 [2021-12-16 09:03:51,721 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 707 GetRequests, 657 SyntacticMatches, 2 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 694 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=646, Invalid=1804, Unknown=0, NotChecked=0, Total=2450 [2021-12-16 09:03:51,722 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 298 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 215 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 215 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-16 09:03:51,722 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [302 Valid, 176 Invalid, 597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [215 Valid, 382 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-16 09:03:51,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2021-12-16 09:03:51,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 129. [2021-12-16 09:03:51,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 104 states have (on average 1.0480769230769231) internal successors, (109), 100 states have internal predecessors, (109), 15 states have call successors, (15), 11 states have call predecessors, (15), 9 states have return successors, (37), 17 states have call predecessors, (37), 14 states have call successors, (37) [2021-12-16 09:03:51,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 161 transitions. [2021-12-16 09:03:51,728 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 161 transitions. Word has length 306 [2021-12-16 09:03:51,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 09:03:51,728 INFO L470 AbstractCegarLoop]: Abstraction has 129 states and 161 transitions. [2021-12-16 09:03:51,729 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 5.121212121212121) internal successors, (169), 33 states have internal predecessors, (169), 27 states have call successors, (31), 1 states have call predecessors, (31), 11 states have return successors, (42), 18 states have call predecessors, (42), 27 states have call successors, (42) [2021-12-16 09:03:51,729 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 161 transitions. [2021-12-16 09:03:51,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2021-12-16 09:03:51,730 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 09:03:51,731 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] [2021-12-16 09:03:51,749 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-12-16 09:03:51,943 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 [2021-12-16 09:03:51,943 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-16 09:03:51,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:03:51,944 INFO L85 PathProgramCache]: Analyzing trace with hash -441922097, now seen corresponding path program 9 times [2021-12-16 09:03:51,944 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:03:51,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188790782] [2021-12-16 09:03:51,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:03:51,944 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:03:51,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:51,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-16 09:03:51,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:52,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:52,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:52,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:52,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:52,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:52,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:52,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:52,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:52,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:52,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:52,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:03:52,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:52,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 09:03:52,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:52,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-16 09:03:52,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:52,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:52,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:52,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:03:52,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:52,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-16 09:03:52,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:52,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:52,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:52,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:52,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:52,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:03:52,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:52,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 09:03:52,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:52,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-16 09:03:52,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:52,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:52,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:52,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:52,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:52,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:03:52,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:52,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 09:03:52,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:52,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2021-12-16 09:03:52,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:52,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:52,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:52,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:52,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:52,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:52,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:52,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:03:52,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:52,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 09:03:52,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:52,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-16 09:03:52,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:52,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:52,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:52,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:03:52,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:52,177 INFO L134 CoverageAnalysis]: Checked inductivity of 3136 backedges. 582 proven. 736 refuted. 0 times theorem prover too weak. 1818 trivial. 0 not checked. [2021-12-16 09:03:52,177 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 09:03:52,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188790782] [2021-12-16 09:03:52,177 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188790782] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 09:03:52,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1681235994] [2021-12-16 09:03:52,177 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-16 09:03:52,177 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 09:03:52,178 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:03:52,178 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) [2021-12-16 09:03:52,179 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-12-16 09:03:52,284 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2021-12-16 09:03:52,284 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-16 09:03:52,285 INFO L263 TraceCheckSpWp]: Trace formula consists of 409 conjuncts, 16 conjunts are in the unsatisfiable core [2021-12-16 09:03:52,296 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:03:52,732 INFO L134 CoverageAnalysis]: Checked inductivity of 3136 backedges. 771 proven. 527 refuted. 0 times theorem prover too weak. 1838 trivial. 0 not checked. [2021-12-16 09:03:52,732 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-16 09:03:53,635 INFO L134 CoverageAnalysis]: Checked inductivity of 3136 backedges. 779 proven. 552 refuted. 0 times theorem prover too weak. 1805 trivial. 0 not checked. [2021-12-16 09:03:53,635 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1681235994] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-16 09:03:53,635 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-16 09:03:53,635 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 12, 17] total 30 [2021-12-16 09:03:53,635 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556500915] [2021-12-16 09:03:53,636 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-16 09:03:53,636 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-12-16 09:03:53,636 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 09:03:53,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-12-16 09:03:53,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=194, Invalid=676, Unknown=0, NotChecked=0, Total=870 [2021-12-16 09:03:53,637 INFO L87 Difference]: Start difference. First operand 129 states and 161 transitions. Second operand has 30 states, 30 states have (on average 5.133333333333334) internal successors, (154), 30 states have internal predecessors, (154), 17 states have call successors, (27), 1 states have call predecessors, (27), 13 states have return successors, (35), 23 states have call predecessors, (35), 17 states have call successors, (35) [2021-12-16 09:03:54,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 09:03:54,015 INFO L93 Difference]: Finished difference Result 256 states and 344 transitions. [2021-12-16 09:03:54,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-12-16 09:03:54,015 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.133333333333334) internal successors, (154), 30 states have internal predecessors, (154), 17 states have call successors, (27), 1 states have call predecessors, (27), 13 states have return successors, (35), 23 states have call predecessors, (35), 17 states have call successors, (35) Word has length 300 [2021-12-16 09:03:54,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 09:03:54,016 INFO L225 Difference]: With dead ends: 256 [2021-12-16 09:03:54,016 INFO L226 Difference]: Without dead ends: 133 [2021-12-16 09:03:54,017 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 685 GetRequests, 643 SyntacticMatches, 3 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 533 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=406, Invalid=1234, Unknown=0, NotChecked=0, Total=1640 [2021-12-16 09:03:54,018 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 237 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 575 mSolverCounterSat, 152 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 727 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 152 IncrementalHoareTripleChecker+Valid, 575 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-16 09:03:54,018 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [238 Valid, 254 Invalid, 727 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [152 Valid, 575 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-16 09:03:54,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2021-12-16 09:03:54,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 112. [2021-12-16 09:03:54,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 90 states have (on average 1.0333333333333334) internal successors, (93), 88 states have internal predecessors, (93), 14 states have call successors, (14), 11 states have call predecessors, (14), 7 states have return successors, (28), 12 states have call predecessors, (28), 13 states have call successors, (28) [2021-12-16 09:03:54,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 135 transitions. [2021-12-16 09:03:54,022 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 135 transitions. Word has length 300 [2021-12-16 09:03:54,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 09:03:54,022 INFO L470 AbstractCegarLoop]: Abstraction has 112 states and 135 transitions. [2021-12-16 09:03:54,023 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.133333333333334) internal successors, (154), 30 states have internal predecessors, (154), 17 states have call successors, (27), 1 states have call predecessors, (27), 13 states have return successors, (35), 23 states have call predecessors, (35), 17 states have call successors, (35) [2021-12-16 09:03:54,023 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 135 transitions. [2021-12-16 09:03:54,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 747 [2021-12-16 09:03:54,027 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 09:03:54,027 INFO L514 BasicCegarLoop]: trace histogram [77, 75, 62, 38, 38, 38, 38, 38, 38, 38, 38, 38, 37, 37, 36, 36, 24, 15, 1, 1, 1, 1, 1] [2021-12-16 09:03:54,047 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2021-12-16 09:03:54,245 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 [2021-12-16 09:03:54,245 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-16 09:03:54,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:03:54,245 INFO L85 PathProgramCache]: Analyzing trace with hash -1169372590, now seen corresponding path program 10 times [2021-12-16 09:03:54,245 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:03:54,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803678163] [2021-12-16 09:03:54,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:03:54,246 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:03:54,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:54,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-16 09:03:54,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:54,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:54,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:54,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:54,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:54,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:54,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:54,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:54,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:54,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:54,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:54,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:03:54,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:54,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 09:03:54,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:54,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-16 09:03:54,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:54,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:54,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:54,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:03:54,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:54,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-16 09:03:54,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:54,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:54,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:54,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:54,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:54,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:03:54,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:54,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 09:03:54,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:54,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-16 09:03:54,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:54,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:54,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:54,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:54,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:54,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:54,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:54,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:03:54,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:54,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 09:03:54,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:54,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-16 09:03:54,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:54,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:54,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:54,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:03:54,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:54,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2021-12-16 09:03:54,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:54,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:54,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:54,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:54,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:54,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:54,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:54,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:54,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:54,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:54,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:54,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:03:54,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:54,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 09:03:54,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:54,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-16 09:03:54,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:54,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:54,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:54,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:03:54,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:54,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-16 09:03:54,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:54,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:54,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:54,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:54,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:54,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:03:54,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:54,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 09:03:54,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:54,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-16 09:03:54,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:54,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:54,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:54,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:54,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:54,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:54,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:54,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:03:54,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:54,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 09:03:54,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:54,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-16 09:03:54,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:54,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:54,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:54,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:03:54,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:54,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2021-12-16 09:03:54,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:54,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:54,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:54,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:54,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:54,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:54,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:54,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:54,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:54,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:54,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:54,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:03:54,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:54,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 09:03:54,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:54,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-16 09:03:54,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:54,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:54,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:54,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:03:54,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:54,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-16 09:03:54,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:54,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:54,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:54,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:54,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:54,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:03:54,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:54,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 09:03:54,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:54,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-16 09:03:54,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:54,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:54,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:54,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:54,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:54,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:54,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:54,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:03:54,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:54,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 09:03:54,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:54,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-16 09:03:54,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:54,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:54,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:54,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:03:54,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:54,831 INFO L134 CoverageAnalysis]: Checked inductivity of 20176 backedges. 1398 proven. 4592 refuted. 0 times theorem prover too weak. 14186 trivial. 0 not checked. [2021-12-16 09:03:54,832 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 09:03:54,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803678163] [2021-12-16 09:03:54,832 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803678163] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 09:03:54,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [404414947] [2021-12-16 09:03:54,832 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-12-16 09:03:54,832 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 09:03:54,833 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:03:54,848 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) [2021-12-16 09:03:54,887 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-12-16 09:03:55,023 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-12-16 09:03:55,024 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-16 09:03:55,027 INFO L263 TraceCheckSpWp]: Trace formula consists of 930 conjuncts, 26 conjunts are in the unsatisfiable core [2021-12-16 09:03:55,033 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:03:55,895 INFO L134 CoverageAnalysis]: Checked inductivity of 20176 backedges. 10304 proven. 2732 refuted. 0 times theorem prover too weak. 7140 trivial. 0 not checked. [2021-12-16 09:03:55,895 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-16 09:03:58,196 INFO L134 CoverageAnalysis]: Checked inductivity of 20176 backedges. 1388 proven. 5273 refuted. 0 times theorem prover too weak. 13515 trivial. 0 not checked. [2021-12-16 09:03:58,196 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [404414947] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-16 09:03:58,196 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-16 09:03:58,196 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 17, 26] total 37 [2021-12-16 09:03:58,196 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250912349] [2021-12-16 09:03:58,197 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-16 09:03:58,197 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2021-12-16 09:03:58,198 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 09:03:58,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-12-16 09:03:58,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=314, Invalid=1018, Unknown=0, NotChecked=0, Total=1332 [2021-12-16 09:03:58,199 INFO L87 Difference]: Start difference. First operand 112 states and 135 transitions. Second operand has 37 states, 37 states have (on average 5.756756756756757) internal successors, (213), 37 states have internal predecessors, (213), 34 states have call successors, (41), 3 states have call predecessors, (41), 13 states have return successors, (54), 22 states have call predecessors, (54), 33 states have call successors, (54) [2021-12-16 09:03:58,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 09:03:58,663 INFO L93 Difference]: Finished difference Result 267 states and 347 transitions. [2021-12-16 09:03:58,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-12-16 09:03:58,663 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 5.756756756756757) internal successors, (213), 37 states have internal predecessors, (213), 34 states have call successors, (41), 3 states have call predecessors, (41), 13 states have return successors, (54), 22 states have call predecessors, (54), 33 states have call successors, (54) Word has length 746 [2021-12-16 09:03:58,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 09:03:58,665 INFO L225 Difference]: With dead ends: 267 [2021-12-16 09:03:58,665 INFO L226 Difference]: Without dead ends: 161 [2021-12-16 09:03:58,666 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1688 GetRequests, 1627 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1034 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=945, Invalid=2715, Unknown=0, NotChecked=0, Total=3660 [2021-12-16 09:03:58,666 INFO L933 BasicCegarLoop]: 35 mSDtfsCounter, 533 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 371 mSolverCounterSat, 308 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 535 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 308 IncrementalHoareTripleChecker+Valid, 371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-16 09:03:58,667 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [535 Valid, 173 Invalid, 679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [308 Valid, 371 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-16 09:03:58,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2021-12-16 09:03:58,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 125. [2021-12-16 09:03:58,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 100 states have (on average 1.03) internal successors, (103), 99 states have internal predecessors, (103), 16 states have call successors, (16), 12 states have call predecessors, (16), 8 states have return successors, (35), 13 states have call predecessors, (35), 15 states have call successors, (35) [2021-12-16 09:03:58,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 154 transitions. [2021-12-16 09:03:58,671 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 154 transitions. Word has length 746 [2021-12-16 09:03:58,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 09:03:58,671 INFO L470 AbstractCegarLoop]: Abstraction has 125 states and 154 transitions. [2021-12-16 09:03:58,672 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 5.756756756756757) internal successors, (213), 37 states have internal predecessors, (213), 34 states have call successors, (41), 3 states have call predecessors, (41), 13 states have return successors, (54), 22 states have call predecessors, (54), 33 states have call successors, (54) [2021-12-16 09:03:58,672 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 154 transitions. [2021-12-16 09:03:58,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 399 [2021-12-16 09:03:58,673 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 09:03:58,673 INFO L514 BasicCegarLoop]: trace histogram [41, 40, 33, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 13, 8, 1, 1, 1, 1, 1] [2021-12-16 09:03:58,713 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-12-16 09:03:58,873 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 [2021-12-16 09:03:58,874 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-16 09:03:58,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:03:58,874 INFO L85 PathProgramCache]: Analyzing trace with hash -452646296, now seen corresponding path program 11 times [2021-12-16 09:03:58,874 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:03:58,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906258726] [2021-12-16 09:03:58,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:03:58,875 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:03:58,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:58,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-16 09:03:58,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:59,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:59,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:59,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:59,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:59,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:59,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:59,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:59,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:59,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:59,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:59,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:03:59,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:59,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 09:03:59,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:59,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-16 09:03:59,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:59,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:59,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:59,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:03:59,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:59,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-16 09:03:59,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:59,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:59,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:59,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:59,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:59,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:03:59,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:59,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 09:03:59,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:59,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-16 09:03:59,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:59,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:59,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:59,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:59,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:59,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:59,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:59,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:03:59,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:59,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 09:03:59,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:59,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-16 09:03:59,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:59,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:59,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:59,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:03:59,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:59,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2021-12-16 09:03:59,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:59,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:59,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:59,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:59,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:59,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:59,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:59,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:59,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:59,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:03:59,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:59,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 09:03:59,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:59,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-16 09:03:59,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:59,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:59,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:59,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:03:59,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:59,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-16 09:03:59,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:59,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:59,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:59,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:03:59,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:59,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:03:59,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:59,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 09:03:59,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:59,366 INFO L134 CoverageAnalysis]: Checked inductivity of 5609 backedges. 820 proven. 1093 refuted. 0 times theorem prover too weak. 3696 trivial. 0 not checked. [2021-12-16 09:03:59,366 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 09:03:59,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906258726] [2021-12-16 09:03:59,366 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906258726] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 09:03:59,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1496359866] [2021-12-16 09:03:59,366 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-12-16 09:03:59,366 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 09:03:59,367 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:03:59,367 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) [2021-12-16 09:03:59,368 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-12-16 09:03:59,532 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 29 check-sat command(s) [2021-12-16 09:03:59,532 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-16 09:03:59,536 INFO L263 TraceCheckSpWp]: Trace formula consists of 760 conjuncts, 81 conjunts are in the unsatisfiable core [2021-12-16 09:03:59,539 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:04:00,262 INFO L134 CoverageAnalysis]: Checked inductivity of 5609 backedges. 820 proven. 1093 refuted. 0 times theorem prover too weak. 3696 trivial. 0 not checked. [2021-12-16 09:04:00,262 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-16 09:04:04,589 INFO L134 CoverageAnalysis]: Checked inductivity of 5609 backedges. 1149 proven. 996 refuted. 0 times theorem prover too weak. 3464 trivial. 0 not checked. [2021-12-16 09:04:04,589 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1496359866] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-16 09:04:04,589 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-16 09:04:04,589 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 29] total 40 [2021-12-16 09:04:04,590 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043805404] [2021-12-16 09:04:04,590 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-16 09:04:04,591 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2021-12-16 09:04:04,591 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 09:04:04,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-12-16 09:04:04,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=367, Invalid=1273, Unknown=0, NotChecked=0, Total=1640 [2021-12-16 09:04:04,592 INFO L87 Difference]: Start difference. First operand 125 states and 154 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) [2021-12-16 09:04:04,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 09:04:04,771 INFO L93 Difference]: Finished difference Result 156 states and 206 transitions. [2021-12-16 09:04:04,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-12-16 09:04:04,774 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 40 states have (on average 2.575) internal successors, (103), 41 states have internal predecessors, (103), 11 states have call successors, (12), 1 states have call predecessors, (12), 11 states have return successors, (28), 28 states have call predecessors, (28), 11 states have call successors, (28) Word has length 398 [2021-12-16 09:04:04,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 09:04:04,777 INFO L225 Difference]: With dead ends: 156 [2021-12-16 09:04:04,777 INFO L226 Difference]: Without dead ends: 155 [2021-12-16 09:04:04,778 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 958 GetRequests, 916 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 844 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=409, Invalid=1483, Unknown=0, NotChecked=0, Total=1892 [2021-12-16 09:04:04,778 INFO L933 BasicCegarLoop]: 29 mSDtfsCounter, 43 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-16 09:04:04,778 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 264 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-16 09:04:04,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2021-12-16 09:04:04,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 145. [2021-12-16 09:04:04,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 116 states have (on average 1.0258620689655173) internal successors, (119), 114 states have internal predecessors, (119), 18 states have call successors, (18), 12 states have call predecessors, (18), 10 states have return successors, (55), 18 states have call predecessors, (55), 17 states have call successors, (55) [2021-12-16 09:04:04,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 192 transitions. [2021-12-16 09:04:04,786 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 192 transitions. Word has length 398 [2021-12-16 09:04:04,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 09:04:04,787 INFO L470 AbstractCegarLoop]: Abstraction has 145 states and 192 transitions. [2021-12-16 09:04:04,787 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) [2021-12-16 09:04:04,787 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 192 transitions. [2021-12-16 09:04:04,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 817 [2021-12-16 09:04:04,795 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 09:04:04,795 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] [2021-12-16 09:04:04,838 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-12-16 09:04:05,011 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 [2021-12-16 09:04:05,011 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-16 09:04:05,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:04:05,012 INFO L85 PathProgramCache]: Analyzing trace with hash -2007415225, now seen corresponding path program 12 times [2021-12-16 09:04:05,012 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:04:05,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781913823] [2021-12-16 09:04:05,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:04:05,012 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:04:05,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:05,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-16 09:04:05,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:05,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:05,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:05,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:05,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:05,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:05,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:05,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:05,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:05,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:05,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:05,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:05,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:05,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:04:05,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:05,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 09:04:05,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:05,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-16 09:04:05,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:05,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:05,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:05,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:04:05,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:05,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-16 09:04:05,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:05,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:05,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:05,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:05,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:05,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:04:05,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:05,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 09:04:05,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:05,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-16 09:04:05,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:05,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:05,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:05,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:05,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:05,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:05,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:05,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:04:05,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:05,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 09:04:05,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:05,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-16 09:04:05,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:05,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:05,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:05,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:04:05,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:05,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2021-12-16 09:04:05,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:05,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:05,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:05,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:05,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:05,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:05,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:05,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:05,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:05,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:04:05,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:05,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 09:04:05,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:05,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-16 09:04:05,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:05,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:05,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:05,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:04:05,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:05,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-16 09:04:05,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:05,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:05,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:05,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:05,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:05,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:04:05,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:05,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 09:04:05,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:05,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 416 [2021-12-16 09:04:05,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:05,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:05,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:05,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:05,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:05,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:05,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:05,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:05,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:05,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:05,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:05,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:05,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:05,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:04:05,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:05,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 09:04:05,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:05,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-16 09:04:05,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:05,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:05,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:05,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:04:05,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:05,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-16 09:04:05,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:05,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:05,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:05,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:05,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:05,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:04:05,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:05,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 09:04:05,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:05,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-16 09:04:05,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:05,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:05,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:05,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:05,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:05,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:05,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:05,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:04:05,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:05,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 09:04:05,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:05,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-16 09:04:05,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:05,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:05,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:05,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:04:05,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:05,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2021-12-16 09:04:05,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:05,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:05,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:05,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:05,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:05,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:05,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:05,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:05,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:05,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:04:05,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:05,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 09:04:05,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:05,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-16 09:04:05,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:05,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:05,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:05,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:04:05,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:05,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-16 09:04:05,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:05,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:05,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:05,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:05,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:05,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:04:05,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:05,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 09:04:05,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:05,805 INFO L134 CoverageAnalysis]: Checked inductivity of 24175 backedges. 2328 proven. 4942 refuted. 0 times theorem prover too weak. 16905 trivial. 0 not checked. [2021-12-16 09:04:05,805 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 09:04:05,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781913823] [2021-12-16 09:04:05,806 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781913823] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 09:04:05,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1535937503] [2021-12-16 09:04:05,806 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-12-16 09:04:05,806 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 09:04:05,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:04:05,820 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) [2021-12-16 09:04:05,821 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-12-16 09:04:06,228 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 52 check-sat command(s) [2021-12-16 09:04:06,228 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-16 09:04:06,233 INFO L263 TraceCheckSpWp]: Trace formula consists of 1400 conjuncts, 20 conjunts are in the unsatisfiable core [2021-12-16 09:04:06,241 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:04:07,165 INFO L134 CoverageAnalysis]: Checked inductivity of 24175 backedges. 3148 proven. 2246 refuted. 0 times theorem prover too weak. 18781 trivial. 0 not checked. [2021-12-16 09:04:07,165 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-16 09:04:09,211 INFO L134 CoverageAnalysis]: Checked inductivity of 24175 backedges. 3156 proven. 2310 refuted. 0 times theorem prover too weak. 18709 trivial. 0 not checked. [2021-12-16 09:04:09,211 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1535937503] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-16 09:04:09,211 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-16 09:04:09,212 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 14, 21] total 40 [2021-12-16 09:04:09,212 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935867121] [2021-12-16 09:04:09,212 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-16 09:04:09,214 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2021-12-16 09:04:09,214 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 09:04:09,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-12-16 09:04:09,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=380, Invalid=1180, Unknown=0, NotChecked=0, Total=1560 [2021-12-16 09:04:09,215 INFO L87 Difference]: Start difference. First operand 145 states and 192 transitions. Second operand has 40 states, 40 states have (on average 4.875) internal successors, (195), 40 states have internal predecessors, (195), 24 states have call successors, (35), 1 states have call predecessors, (35), 15 states have return successors, (49), 33 states have call predecessors, (49), 24 states have call successors, (49) [2021-12-16 09:04:09,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 09:04:09,845 INFO L93 Difference]: Finished difference Result 335 states and 487 transitions. [2021-12-16 09:04:09,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-12-16 09:04:09,846 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 4.875) internal successors, (195), 40 states have internal predecessors, (195), 24 states have call successors, (35), 1 states have call predecessors, (35), 15 states have return successors, (49), 33 states have call predecessors, (49), 24 states have call successors, (49) Word has length 816 [2021-12-16 09:04:09,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 09:04:09,848 INFO L225 Difference]: With dead ends: 335 [2021-12-16 09:04:09,848 INFO L226 Difference]: Without dead ends: 196 [2021-12-16 09:04:09,850 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1848 GetRequests, 1782 SyntacticMatches, 2 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1317 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=1030, Invalid=3260, Unknown=0, NotChecked=0, Total=4290 [2021-12-16 09:04:09,851 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 543 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 711 mSolverCounterSat, 410 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 547 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 1121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 410 IncrementalHoareTripleChecker+Valid, 711 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-16 09:04:09,852 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [547 Valid, 267 Invalid, 1121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [410 Valid, 711 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-16 09:04:09,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2021-12-16 09:04:09,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 183. [2021-12-16 09:04:09,859 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) [2021-12-16 09:04:09,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 240 transitions. [2021-12-16 09:04:09,860 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 240 transitions. Word has length 816 [2021-12-16 09:04:09,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 09:04:09,862 INFO L470 AbstractCegarLoop]: Abstraction has 183 states and 240 transitions. [2021-12-16 09:04:09,862 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 4.875) internal successors, (195), 40 states have internal predecessors, (195), 24 states have call successors, (35), 1 states have call predecessors, (35), 15 states have return successors, (49), 33 states have call predecessors, (49), 24 states have call successors, (49) [2021-12-16 09:04:09,862 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 240 transitions. [2021-12-16 09:04:09,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 811 [2021-12-16 09:04:09,868 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 09:04:09,868 INFO L514 BasicCegarLoop]: trace histogram [83, 82, 67, 41, 41, 41, 41, 41, 41, 41, 41, 41, 41, 41, 40, 40, 26, 16, 1, 1, 1, 1, 1] [2021-12-16 09:04:09,899 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-12-16 09:04:10,083 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 [2021-12-16 09:04:10,084 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-16 09:04:10,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:04:10,084 INFO L85 PathProgramCache]: Analyzing trace with hash -697208895, now seen corresponding path program 13 times [2021-12-16 09:04:10,084 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:04:10,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430988935] [2021-12-16 09:04:10,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:04:10,084 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:04:10,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:10,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-16 09:04:10,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:10,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:10,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:10,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:10,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:10,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:10,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:10,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:10,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:10,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:10,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:10,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:10,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:10,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:10,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:10,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:04:10,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:10,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 09:04:10,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:10,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-16 09:04:10,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:10,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:10,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:10,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:04:10,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:10,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-16 09:04:10,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:10,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:10,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:10,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:10,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:10,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:04:10,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:10,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 09:04:10,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:10,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-16 09:04:10,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:10,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:10,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:10,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:10,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:10,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:10,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:10,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:04:10,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:10,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 09:04:10,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:10,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-16 09:04:10,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:10,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:10,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:10,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:04:10,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:10,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2021-12-16 09:04:10,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:10,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:10,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:10,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:10,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:10,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:10,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:10,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:10,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:10,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:04:10,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:10,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 09:04:10,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:10,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-16 09:04:10,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:10,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:10,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:10,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:04:10,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:10,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-16 09:04:10,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:10,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:10,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:10,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:10,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:10,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:04:10,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:10,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 09:04:10,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:10,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 406 [2021-12-16 09:04:10,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:10,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:10,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:10,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:10,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:10,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:10,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:10,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:10,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:10,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:04:10,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:10,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 09:04:10,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:10,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-16 09:04:10,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:10,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:10,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:10,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:04:10,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:10,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-16 09:04:10,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:10,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:10,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:10,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:10,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:10,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:04:10,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:10,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 09:04:10,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:10,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 567 [2021-12-16 09:04:10,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:10,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:10,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:10,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:10,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:10,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:10,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:10,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:10,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:10,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:10,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:10,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:04:10,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:10,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 09:04:10,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:10,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-16 09:04:10,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:10,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:10,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:10,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:04:10,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:10,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-16 09:04:10,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:10,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:10,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:10,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:10,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:10,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:04:10,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:10,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 09:04:10,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:10,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-16 09:04:10,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:10,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:10,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:10,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:10,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:10,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:10,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:10,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:04:10,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:10,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 09:04:10,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:10,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-16 09:04:10,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:10,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:10,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:10,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:04:10,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:10,807 INFO L134 CoverageAnalysis]: Checked inductivity of 23819 backedges. 2337 proven. 4185 refuted. 0 times theorem prover too weak. 17297 trivial. 0 not checked. [2021-12-16 09:04:10,807 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 09:04:10,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430988935] [2021-12-16 09:04:10,807 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430988935] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 09:04:10,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [743429815] [2021-12-16 09:04:10,807 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-12-16 09:04:10,807 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 09:04:10,807 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:04:10,808 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) [2021-12-16 09:04:10,809 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-12-16 09:04:11,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:11,118 INFO L263 TraceCheckSpWp]: Trace formula consists of 1521 conjuncts, 26 conjunts are in the unsatisfiable core [2021-12-16 09:04:11,124 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:04:12,109 INFO L134 CoverageAnalysis]: Checked inductivity of 23819 backedges. 12183 proven. 2667 refuted. 0 times theorem prover too weak. 8969 trivial. 0 not checked. [2021-12-16 09:04:12,110 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-16 09:04:15,176 INFO L134 CoverageAnalysis]: Checked inductivity of 23819 backedges. 2207 proven. 5308 refuted. 0 times theorem prover too weak. 16304 trivial. 0 not checked. [2021-12-16 09:04:15,177 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [743429815] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-16 09:04:15,177 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-16 09:04:15,177 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 17, 27] total 39 [2021-12-16 09:04:15,177 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046363523] [2021-12-16 09:04:15,177 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-16 09:04:15,179 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2021-12-16 09:04:15,179 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 09:04:15,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2021-12-16 09:04:15,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=362, Invalid=1120, Unknown=0, NotChecked=0, Total=1482 [2021-12-16 09:04:15,180 INFO L87 Difference]: Start difference. First operand 183 states and 240 transitions. Second operand has 39 states, 39 states have (on average 5.435897435897436) internal successors, (212), 39 states have internal predecessors, (212), 34 states have call successors, (40), 2 states have call predecessors, (40), 14 states have return successors, (56), 22 states have call predecessors, (56), 34 states have call successors, (56) [2021-12-16 09:04:15,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 09:04:15,622 INFO L93 Difference]: Finished difference Result 361 states and 490 transitions. [2021-12-16 09:04:15,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-12-16 09:04:15,623 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 5.435897435897436) internal successors, (212), 39 states have internal predecessors, (212), 34 states have call successors, (40), 2 states have call predecessors, (40), 14 states have return successors, (56), 22 states have call predecessors, (56), 34 states have call successors, (56) Word has length 810 [2021-12-16 09:04:15,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 09:04:15,625 INFO L225 Difference]: With dead ends: 361 [2021-12-16 09:04:15,625 INFO L226 Difference]: Without dead ends: 184 [2021-12-16 09:04:15,627 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1818 GetRequests, 1767 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 796 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=662, Invalid=1888, Unknown=0, NotChecked=0, Total=2550 [2021-12-16 09:04:15,628 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 222 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 749 mSolverCounterSat, 144 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 893 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 144 IncrementalHoareTripleChecker+Valid, 749 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-16 09:04:15,628 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [224 Valid, 298 Invalid, 893 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [144 Valid, 749 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-16 09:04:15,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2021-12-16 09:04:15,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 148. [2021-12-16 09:04:15,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 119 states have (on average 1.0252100840336134) internal successors, (122), 117 states have internal predecessors, (122), 19 states have call successors, (19), 14 states have call predecessors, (19), 9 states have return successors, (45), 16 states have call predecessors, (45), 18 states have call successors, (45) [2021-12-16 09:04:15,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 186 transitions. [2021-12-16 09:04:15,638 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 186 transitions. Word has length 810 [2021-12-16 09:04:15,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 09:04:15,639 INFO L470 AbstractCegarLoop]: Abstraction has 148 states and 186 transitions. [2021-12-16 09:04:15,639 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 5.435897435897436) internal successors, (212), 39 states have internal predecessors, (212), 34 states have call successors, (40), 2 states have call predecessors, (40), 14 states have return successors, (56), 22 states have call predecessors, (56), 34 states have call successors, (56) [2021-12-16 09:04:15,639 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 186 transitions. [2021-12-16 09:04:15,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1746 [2021-12-16 09:04:15,666 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 09:04:15,667 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] [2021-12-16 09:04:15,687 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2021-12-16 09:04:15,883 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 [2021-12-16 09:04:15,883 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-16 09:04:15,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:04:15,884 INFO L85 PathProgramCache]: Analyzing trace with hash -796031104, now seen corresponding path program 14 times [2021-12-16 09:04:15,884 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:04:15,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843783859] [2021-12-16 09:04:15,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:04:15,884 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:04:16,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:16,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-16 09:04:16,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:16,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:16,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:16,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:16,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:16,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:16,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:16,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:16,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:16,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:16,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:16,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:16,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:16,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:16,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:16,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:04:16,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:16,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 09:04:16,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:16,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-16 09:04:16,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:16,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:16,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:16,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:04:16,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:16,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-16 09:04:16,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:16,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:16,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:16,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:16,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:16,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:04:16,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:16,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 09:04:16,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:16,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-16 09:04:16,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:16,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:16,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:16,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:16,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:16,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:16,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:16,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:04:16,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:16,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 09:04:16,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:16,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-16 09:04:16,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:16,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:16,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:16,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:04:16,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:16,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2021-12-16 09:04:16,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:16,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:16,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:16,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:16,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:16,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:16,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:16,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:16,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:16,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:04:16,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:16,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 09:04:16,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:16,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-16 09:04:16,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:16,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:16,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:16,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:04:16,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:16,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-16 09:04:16,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:16,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:16,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:16,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:16,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:16,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:04:16,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:16,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 09:04:16,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:16,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 406 [2021-12-16 09:04:16,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:16,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:16,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:16,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:16,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:16,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:16,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:16,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:16,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:16,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:16,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:16,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:04:16,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:16,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 09:04:16,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:16,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-16 09:04:16,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:16,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:16,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:16,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:04:16,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:16,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-16 09:04:16,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:16,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:16,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:16,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:16,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:16,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:04:16,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:16,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 09:04:16,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:16,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-16 09:04:16,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:16,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:16,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:16,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:16,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:16,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:16,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:16,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:04:16,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:16,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 09:04:16,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:16,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-16 09:04:16,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:16,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:16,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:16,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:04:16,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:16,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 689 [2021-12-16 09:04:16,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:16,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:16,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:16,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:16,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:17,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:17,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:17,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:17,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:17,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:04:17,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 09:04:17,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-16 09:04:17,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:17,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:04:17,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-16 09:04:17,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:17,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:17,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:04:17,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 09:04:17,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-16 09:04:17,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:17,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:17,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:17,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:04:17,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 09:04:17,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-16 09:04:17,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:17,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:04:17,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2021-12-16 09:04:17,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:17,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:17,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:17,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:17,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:04:17,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 09:04:17,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-16 09:04:17,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:17,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:04:17,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-16 09:04:17,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:17,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:17,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:04:17,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 09:04:17,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 406 [2021-12-16 09:04:17,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:17,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:17,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:17,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:17,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:17,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:04:17,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 09:04:17,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-16 09:04:17,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:17,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:04:17,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-16 09:04:17,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:17,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:17,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:04:17,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 09:04:17,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-16 09:04:17,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:17,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:17,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:17,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:04:17,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 09:04:17,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-16 09:04:17,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:17,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:04:17,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1345 [2021-12-16 09:04:17,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:17,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:17,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:17,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:17,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:17,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:17,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:04:17,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 09:04:17,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-16 09:04:17,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:17,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:04:17,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-16 09:04:17,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:17,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:17,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:04:17,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 09:04:17,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-16 09:04:17,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:17,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:17,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:17,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:04:17,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 09:04:17,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-16 09:04:17,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:17,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:04:17,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2021-12-16 09:04:17,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:17,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:17,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:17,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:17,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:04:17,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 09:04:17,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-16 09:04:17,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:17,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:04:17,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-16 09:04:17,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:17,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:17,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:04:17,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 09:04:17,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:17,345 INFO L134 CoverageAnalysis]: Checked inductivity of 111989 backedges. 4257 proven. 14619 refuted. 0 times theorem prover too weak. 93113 trivial. 0 not checked. [2021-12-16 09:04:17,345 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 09:04:17,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843783859] [2021-12-16 09:04:17,345 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843783859] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 09:04:17,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1927335515] [2021-12-16 09:04:17,345 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-16 09:04:17,345 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 09:04:17,345 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:04:17,346 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-16 09:04:17,349 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-12-16 09:04:17,795 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-16 09:04:17,796 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-16 09:04:17,805 INFO L263 TraceCheckSpWp]: Trace formula consists of 3245 conjuncts, 34 conjunts are in the unsatisfiable core [2021-12-16 09:04:17,817 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:04:19,617 INFO L134 CoverageAnalysis]: Checked inductivity of 111989 backedges. 44425 proven. 10618 refuted. 0 times theorem prover too weak. 56946 trivial. 0 not checked. [2021-12-16 09:04:19,617 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-16 09:04:24,178 INFO L134 CoverageAnalysis]: Checked inductivity of 111989 backedges. 4770 proven. 15687 refuted. 0 times theorem prover too weak. 91532 trivial. 0 not checked. [2021-12-16 09:04:24,179 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1927335515] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-16 09:04:24,179 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-16 09:04:24,179 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 21, 31] total 45 [2021-12-16 09:04:24,179 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926478619] [2021-12-16 09:04:24,179 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-16 09:04:24,181 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2021-12-16 09:04:24,181 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 09:04:24,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2021-12-16 09:04:24,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=458, Invalid=1522, Unknown=0, NotChecked=0, Total=1980 [2021-12-16 09:04:24,182 INFO L87 Difference]: Start difference. First operand 148 states and 186 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) [2021-12-16 09:04:24,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 09:04:24,710 INFO L93 Difference]: Finished difference Result 357 states and 491 transitions. [2021-12-16 09:04:24,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-12-16 09:04:24,710 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 [2021-12-16 09:04:24,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 09:04:24,712 INFO L225 Difference]: With dead ends: 357 [2021-12-16 09:04:24,712 INFO L226 Difference]: Without dead ends: 215 [2021-12-16 09:04:24,714 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3905 GetRequests, 3828 SyntacticMatches, 2 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1729 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=1534, Invalid=4318, Unknown=0, NotChecked=0, Total=5852 [2021-12-16 09:04:24,715 INFO L933 BasicCegarLoop]: 28 mSDtfsCounter, 491 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 279 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 493 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 279 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-16 09:04:24,715 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [493 Valid, 206 Invalid, 737 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [279 Valid, 458 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-16 09:04:24,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2021-12-16 09:04:24,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 190. [2021-12-16 09:04:24,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 154 states have (on average 1.0324675324675325) internal successors, (159), 151 states have internal predecessors, (159), 25 states have call successors, (25), 20 states have call predecessors, (25), 10 states have return successors, (63), 18 states have call predecessors, (63), 24 states have call successors, (63) [2021-12-16 09:04:24,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 247 transitions. [2021-12-16 09:04:24,722 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 247 transitions. Word has length 1745 [2021-12-16 09:04:24,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 09:04:24,722 INFO L470 AbstractCegarLoop]: Abstraction has 190 states and 247 transitions. [2021-12-16 09:04:24,723 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) [2021-12-16 09:04:24,723 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 247 transitions. [2021-12-16 09:04:24,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 909 [2021-12-16 09:04:24,728 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 09:04:24,729 INFO L514 BasicCegarLoop]: trace histogram [93, 92, 75, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 45, 45, 29, 18, 1, 1, 1, 1, 1] [2021-12-16 09:04:24,759 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2021-12-16 09:04:24,949 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 09:04:24,949 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-16 09:04:24,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:04:24,949 INFO L85 PathProgramCache]: Analyzing trace with hash 1483645144, now seen corresponding path program 15 times [2021-12-16 09:04:24,949 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:04:24,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450219432] [2021-12-16 09:04:24,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:04:24,949 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:04:25,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:25,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-16 09:04:25,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:25,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:25,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:25,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:25,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:25,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:25,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:25,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:25,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:25,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:25,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:25,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:25,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:25,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:25,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:25,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:04:25,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:25,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 09:04:25,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:25,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-16 09:04:25,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:25,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:25,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:25,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:04:25,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:25,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-16 09:04:25,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:25,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:25,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:25,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:25,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:25,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:04:25,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:25,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 09:04:25,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:25,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-16 09:04:25,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:25,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:25,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:25,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:25,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:25,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:25,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:25,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:04:25,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:25,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 09:04:25,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:25,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-16 09:04:25,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:25,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:25,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:25,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:04:25,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:25,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2021-12-16 09:04:25,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:25,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:25,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:25,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:25,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:25,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:25,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:25,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:25,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:25,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:04:25,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:25,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 09:04:25,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:25,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-16 09:04:25,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:25,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:25,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:25,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:04:25,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:25,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-16 09:04:25,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:25,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:25,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:25,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:25,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:25,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:04:25,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:25,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 09:04:25,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:25,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 406 [2021-12-16 09:04:25,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:25,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:25,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:25,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:25,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:25,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:25,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:25,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:25,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:25,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:25,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:25,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:04:25,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:25,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 09:04:25,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:25,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-16 09:04:25,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:25,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:25,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:25,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:04:25,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:25,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-16 09:04:25,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:25,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:25,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:25,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:25,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:25,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:04:25,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:25,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 09:04:25,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:25,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-16 09:04:25,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:25,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:25,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:25,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:25,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:25,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:25,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:25,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:04:25,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:25,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 09:04:25,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:25,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-16 09:04:25,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:25,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:25,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:25,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:04:25,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:25,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 665 [2021-12-16 09:04:25,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:25,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:25,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:25,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:25,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:25,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:25,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:25,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:25,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:25,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:25,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:25,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:04:25,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:25,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 09:04:25,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:25,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-16 09:04:25,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:25,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:25,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:25,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:04:25,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:25,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-16 09:04:25,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:25,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:25,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:25,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:25,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:25,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:04:25,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:25,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 09:04:25,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:25,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-16 09:04:25,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:25,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:25,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:25,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:25,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:25,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:25,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:25,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:04:25,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:25,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 09:04:25,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:25,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-16 09:04:25,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:25,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:25,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:25,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:04:25,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:25,681 INFO L134 CoverageAnalysis]: Checked inductivity of 30008 backedges. 3898 proven. 4351 refuted. 0 times theorem prover too weak. 21759 trivial. 0 not checked. [2021-12-16 09:04:25,681 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 09:04:25,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450219432] [2021-12-16 09:04:25,681 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450219432] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 09:04:25,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1649140532] [2021-12-16 09:04:25,681 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-16 09:04:25,681 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 09:04:25,682 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:04:25,682 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-16 09:04:25,685 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2021-12-16 09:04:26,017 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 41 check-sat command(s) [2021-12-16 09:04:26,018 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-16 09:04:26,021 INFO L263 TraceCheckSpWp]: Trace formula consists of 1038 conjuncts, 20 conjunts are in the unsatisfiable core [2021-12-16 09:04:26,026 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:04:27,021 INFO L134 CoverageAnalysis]: Checked inductivity of 30008 backedges. 4533 proven. 1474 refuted. 0 times theorem prover too weak. 24001 trivial. 0 not checked. [2021-12-16 09:04:27,021 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-16 09:04:29,221 INFO L134 CoverageAnalysis]: Checked inductivity of 30008 backedges. 4533 proven. 1550 refuted. 0 times theorem prover too weak. 23925 trivial. 0 not checked. [2021-12-16 09:04:29,222 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1649140532] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-16 09:04:29,222 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-16 09:04:29,222 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 14, 21] total 40 [2021-12-16 09:04:29,222 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589830201] [2021-12-16 09:04:29,222 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-16 09:04:29,223 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2021-12-16 09:04:29,223 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 09:04:29,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-12-16 09:04:29,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=378, Invalid=1182, Unknown=0, NotChecked=0, Total=1560 [2021-12-16 09:04:29,224 INFO L87 Difference]: Start difference. First operand 190 states and 247 transitions. Second operand has 40 states, 40 states have (on average 4.775) internal successors, (191), 40 states have internal predecessors, (191), 23 states have call successors, (35), 1 states have call predecessors, (35), 15 states have return successors, (49), 33 states have call predecessors, (49), 23 states have call successors, (49) [2021-12-16 09:04:29,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 09:04:29,791 INFO L93 Difference]: Finished difference Result 404 states and 532 transitions. [2021-12-16 09:04:29,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-12-16 09:04:29,792 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 4.775) internal successors, (191), 40 states have internal predecessors, (191), 23 states have call successors, (35), 1 states have call predecessors, (35), 15 states have return successors, (49), 33 states have call predecessors, (49), 23 states have call successors, (49) Word has length 908 [2021-12-16 09:04:29,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 09:04:29,794 INFO L225 Difference]: With dead ends: 404 [2021-12-16 09:04:29,794 INFO L226 Difference]: Without dead ends: 220 [2021-12-16 09:04:29,795 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2042 GetRequests, 1983 SyntacticMatches, 4 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1069 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=773, Invalid=2419, Unknown=0, NotChecked=0, Total=3192 [2021-12-16 09:04:29,796 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 288 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 797 mSolverCounterSat, 217 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 1014 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 217 IncrementalHoareTripleChecker+Valid, 797 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-16 09:04:29,797 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [290 Valid, 312 Invalid, 1014 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [217 Valid, 797 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-16 09:04:29,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2021-12-16 09:04:29,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 188. [2021-12-16 09:04:29,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 152 states have (on average 1.0263157894736843) internal successors, (156), 150 states have internal predecessors, (156), 25 states have call successors, (25), 20 states have call predecessors, (25), 10 states have return successors, (52), 17 states have call predecessors, (52), 24 states have call successors, (52) [2021-12-16 09:04:29,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 233 transitions. [2021-12-16 09:04:29,822 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 233 transitions. Word has length 908 [2021-12-16 09:04:29,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 09:04:29,824 INFO L470 AbstractCegarLoop]: Abstraction has 188 states and 233 transitions. [2021-12-16 09:04:29,824 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 4.775) internal successors, (191), 40 states have internal predecessors, (191), 23 states have call successors, (35), 1 states have call predecessors, (35), 15 states have return successors, (49), 33 states have call predecessors, (49), 23 states have call successors, (49) [2021-12-16 09:04:29,824 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 233 transitions. [2021-12-16 09:04:29,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1066 [2021-12-16 09:04:29,832 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 09:04:29,832 INFO L514 BasicCegarLoop]: trace histogram [109, 108, 88, 54, 54, 54, 54, 54, 54, 54, 54, 54, 54, 54, 53, 53, 34, 21, 1, 1, 1, 1, 1] [2021-12-16 09:04:29,853 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2021-12-16 09:04:30,043 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 09:04:30,043 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-16 09:04:30,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:04:30,044 INFO L85 PathProgramCache]: Analyzing trace with hash 873876608, now seen corresponding path program 16 times [2021-12-16 09:04:30,044 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:04:30,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473484439] [2021-12-16 09:04:30,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:04:30,044 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:04:30,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:30,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-16 09:04:30,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:30,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:30,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:30,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:30,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:30,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:30,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:30,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:30,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:30,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:30,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:30,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:30,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:30,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:30,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:30,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:04:30,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:30,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 09:04:30,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:30,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-16 09:04:30,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:30,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:30,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:30,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:04:30,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:30,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-16 09:04:30,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:30,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:30,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:30,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:30,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:30,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:04:30,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:30,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 09:04:30,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:30,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-16 09:04:30,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:30,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:30,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:30,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:30,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:30,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:30,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:30,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:04:30,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:30,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 09:04:30,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:30,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-16 09:04:30,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:30,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:30,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:30,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:04:30,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:30,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2021-12-16 09:04:30,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:30,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:30,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:30,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:30,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:30,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:30,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:30,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:30,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:30,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:04:30,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:30,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 09:04:30,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:30,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-16 09:04:30,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:30,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:30,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:30,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:04:30,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:30,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-16 09:04:30,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:30,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:30,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:30,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:30,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:30,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:04:30,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:30,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 09:04:30,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:30,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 406 [2021-12-16 09:04:30,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:30,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:30,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:30,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:30,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:30,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:30,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:30,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:30,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:30,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:30,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:30,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:04:30,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:30,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 09:04:30,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:30,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-16 09:04:30,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:30,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:30,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:30,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:04:30,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:30,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-16 09:04:30,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:30,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:30,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:30,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:30,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:30,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:04:30,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:30,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 09:04:30,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:30,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-16 09:04:30,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:30,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:30,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:30,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:30,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:30,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:30,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:30,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:04:30,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:30,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 09:04:30,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:30,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-16 09:04:30,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:30,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:30,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:30,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:04:30,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:30,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 665 [2021-12-16 09:04:30,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:30,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:30,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:30,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:30,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:31,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:31,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:31,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:31,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:31,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:31,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:31,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:31,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:31,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:04:31,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:31,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 09:04:31,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:31,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-16 09:04:31,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:31,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:31,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:31,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 09:04:31,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:31,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-16 09:04:31,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:31,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 09:04:31,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat