./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/recursive/Fibonacci01-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e19ca921 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/recursive/Fibonacci01-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6b0570f2e0d80d68bc280040cce27f654b3fe7a2c0bad30f9bb811af9ca3d994 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-e19ca92 [2021-12-22 19:29:00,031 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 19:29:00,033 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 19:29:00,065 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 19:29:00,067 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 19:29:00,070 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 19:29:00,072 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 19:29:00,074 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 19:29:00,075 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 19:29:00,079 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 19:29:00,080 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 19:29:00,081 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 19:29:00,081 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 19:29:00,081 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 19:29:00,082 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 19:29:00,083 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 19:29:00,083 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 19:29:00,083 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 19:29:00,087 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 19:29:00,088 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 19:29:00,091 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 19:29:00,093 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 19:29:00,093 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 19:29:00,094 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 19:29:00,096 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 19:29:00,098 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 19:29:00,098 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 19:29:00,098 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 19:29:00,099 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 19:29:00,100 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 19:29:00,100 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 19:29:00,101 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 19:29:00,101 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 19:29:00,102 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 19:29:00,103 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 19:29:00,103 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 19:29:00,104 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 19:29:00,104 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 19:29:00,104 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 19:29:00,105 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 19:29:00,105 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 19:29:00,106 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2021-12-22 19:29:00,123 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 19:29:00,124 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 19:29:00,124 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 19:29:00,124 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 19:29:00,125 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-22 19:29:00,125 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-22 19:29:00,126 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 19:29:00,126 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 19:29:00,126 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 19:29:00,126 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 19:29:00,127 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-22 19:29:00,127 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-22 19:29:00,127 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 19:29:00,127 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-22 19:29:00,127 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 19:29:00,127 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-22 19:29:00,128 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-22 19:29:00,128 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-22 19:29:00,128 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-12-22 19:29:00,128 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-22 19:29:00,128 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 19:29:00,128 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 19:29:00,128 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-22 19:29:00,129 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 19:29:00,129 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 19:29:00,129 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-22 19:29:00,129 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 19:29:00,129 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 19:29:00,129 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-22 19:29:00,129 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-22 19:29:00,130 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 19:29:00,130 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-22 19:29:00,130 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-22 19:29:00,130 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 19:29:00,130 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6b0570f2e0d80d68bc280040cce27f654b3fe7a2c0bad30f9bb811af9ca3d994 [2021-12-22 19:29:00,358 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 19:29:00,374 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 19:29:00,377 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 19:29:00,378 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 19:29:00,379 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 19:29:00,379 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive/Fibonacci01-1.c [2021-12-22 19:29:00,429 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e495f637/52b6e5f888c14b518942f79512dac28d/FLAGe4b9d9300 [2021-12-22 19:29:00,761 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 19:29:00,762 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/Fibonacci01-1.c [2021-12-22 19:29:00,765 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e495f637/52b6e5f888c14b518942f79512dac28d/FLAGe4b9d9300 [2021-12-22 19:29:00,773 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e495f637/52b6e5f888c14b518942f79512dac28d [2021-12-22 19:29:00,775 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 19:29:00,776 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 19:29:00,777 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 19:29:00,777 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 19:29:00,779 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 19:29:00,779 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 07:29:00" (1/1) ... [2021-12-22 19:29:00,780 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@318b214b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:29:00, skipping insertion in model container [2021-12-22 19:29:00,780 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 07:29:00" (1/1) ... [2021-12-22 19:29:00,784 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 19:29:00,803 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 19:29:00,888 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/Fibonacci01-1.c[804,817] [2021-12-22 19:29:00,889 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 19:29:00,894 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 19:29:00,903 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/Fibonacci01-1.c[804,817] [2021-12-22 19:29:00,904 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 19:29:00,912 INFO L208 MainTranslator]: Completed translation [2021-12-22 19:29:00,913 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:29:00 WrapperNode [2021-12-22 19:29:00,913 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 19:29:00,914 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 19:29:00,914 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 19:29:00,914 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 19:29:00,920 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:29:00" (1/1) ... [2021-12-22 19:29:00,931 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:29:00" (1/1) ... [2021-12-22 19:29:00,947 INFO L137 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 28 [2021-12-22 19:29:00,948 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 19:29:00,948 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 19:29:00,948 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 19:29:00,948 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 19:29:00,953 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:29:00" (1/1) ... [2021-12-22 19:29:00,953 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:29:00" (1/1) ... [2021-12-22 19:29:00,961 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:29:00" (1/1) ... [2021-12-22 19:29:00,961 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:29:00" (1/1) ... [2021-12-22 19:29:00,963 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:29:00" (1/1) ... [2021-12-22 19:29:00,964 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:29:00" (1/1) ... [2021-12-22 19:29:00,965 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:29:00" (1/1) ... [2021-12-22 19:29:00,966 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 19:29:00,969 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 19:29:00,969 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 19:29:00,969 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 19:29:00,970 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:29:00" (1/1) ... [2021-12-22 19:29:00,974 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 19:29:00,989 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:29:01,019 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) [2021-12-22 19:29:01,024 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 [2021-12-22 19:29:01,047 INFO L130 BoogieDeclarations]: Found specification of procedure fibonacci [2021-12-22 19:29:01,047 INFO L138 BoogieDeclarations]: Found implementation of procedure fibonacci [2021-12-22 19:29:01,048 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-22 19:29:01,048 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 19:29:01,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 19:29:01,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-22 19:29:01,086 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 19:29:01,087 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 19:29:01,162 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 19:29:01,166 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 19:29:01,166 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-22 19:29:01,167 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 07:29:01 BoogieIcfgContainer [2021-12-22 19:29:01,167 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 19:29:01,168 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-22 19:29:01,168 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-22 19:29:01,170 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-22 19:29:01,171 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 07:29:00" (1/3) ... [2021-12-22 19:29:01,171 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d4755bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 07:29:01, skipping insertion in model container [2021-12-22 19:29:01,171 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:29:00" (2/3) ... [2021-12-22 19:29:01,172 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d4755bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 07:29:01, skipping insertion in model container [2021-12-22 19:29:01,172 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 07:29:01" (3/3) ... [2021-12-22 19:29:01,172 INFO L111 eAbstractionObserver]: Analyzing ICFG Fibonacci01-1.c [2021-12-22 19:29:01,176 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-22 19:29:01,176 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2021-12-22 19:29:01,205 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-22 19:29:01,210 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 [2021-12-22 19:29:01,210 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-12-22 19:29:01,221 INFO L276 IsEmpty]: Start isEmpty. Operand has 35 states, 22 states have (on average 1.5454545454545454) internal successors, (34), 30 states have internal predecessors, (34), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-22 19:29:01,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-12-22 19:29:01,224 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 19:29:01,225 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 19:29:01,225 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-22 19:29:01,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:29:01,228 INFO L85 PathProgramCache]: Analyzing trace with hash 630876797, now seen corresponding path program 1 times [2021-12-22 19:29:01,234 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 19:29:01,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609442231] [2021-12-22 19:29:01,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 19:29:01,235 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 19:29:01,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:01,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 19:29:01,428 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 19:29:01,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609442231] [2021-12-22 19:29:01,431 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609442231] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 19:29:01,432 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 19:29:01,432 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-22 19:29:01,433 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959377979] [2021-12-22 19:29:01,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 19:29:01,437 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 19:29:01,438 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 19:29:01,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 19:29:01,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 19:29:01,466 INFO L87 Difference]: Start difference. First operand has 35 states, 22 states have (on average 1.5454545454545454) internal successors, (34), 30 states have internal predecessors, (34), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 19:29:01,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 19:29:01,560 INFO L93 Difference]: Finished difference Result 41 states and 44 transitions. [2021-12-22 19:29:01,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 19:29:01,563 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 [2021-12-22 19:29:01,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 19:29:01,568 INFO L225 Difference]: With dead ends: 41 [2021-12-22 19:29:01,568 INFO L226 Difference]: Without dead ends: 27 [2021-12-22 19:29:01,570 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 [2021-12-22 19:29:01,575 INFO L933 BasicCegarLoop]: 19 mSDtfsCounter, 41 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-22 19:29:01,578 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 49 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-22 19:29:01,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-12-22 19:29:01,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2021-12-22 19:29:01,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 22 states have internal predecessors, (24), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-22 19:29:01,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2021-12-22 19:29:01,610 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 8 [2021-12-22 19:29:01,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 19:29:01,610 INFO L470 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2021-12-22 19:29:01,610 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) [2021-12-22 19:29:01,611 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2021-12-22 19:29:01,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-12-22 19:29:01,613 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 19:29:01,613 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 19:29:01,614 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-22 19:29:01,614 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-22 19:29:01,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:29:01,617 INFO L85 PathProgramCache]: Analyzing trace with hash -1917655731, now seen corresponding path program 1 times [2021-12-22 19:29:01,617 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 19:29:01,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968275760] [2021-12-22 19:29:01,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 19:29:01,618 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 19:29:01,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:01,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 19:29:01,645 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 19:29:01,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968275760] [2021-12-22 19:29:01,646 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968275760] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 19:29:01,646 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 19:29:01,647 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-22 19:29:01,647 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935447454] [2021-12-22 19:29:01,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 19:29:01,648 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 19:29:01,649 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 19:29:01,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 19:29:01,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 19:29:01,650 INFO L87 Difference]: Start difference. First operand 27 states and 30 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 19:29:01,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 19:29:01,675 INFO L93 Difference]: Finished difference Result 29 states and 34 transitions. [2021-12-22 19:29:01,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 19:29:01,676 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 [2021-12-22 19:29:01,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 19:29:01,678 INFO L225 Difference]: With dead ends: 29 [2021-12-22 19:29:01,678 INFO L226 Difference]: Without dead ends: 27 [2021-12-22 19:29:01,680 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 [2021-12-22 19:29:01,681 INFO L933 BasicCegarLoop]: 26 mSDtfsCounter, 11 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-22 19:29:01,682 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 38 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 19:29:01,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-12-22 19:29:01,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 25. [2021-12-22 19:29:01,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 20 states have internal predecessors, (22), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-22 19:29:01,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2021-12-22 19:29:01,689 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 9 [2021-12-22 19:29:01,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 19:29:01,689 INFO L470 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2021-12-22 19:29:01,690 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) [2021-12-22 19:29:01,691 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2021-12-22 19:29:01,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-12-22 19:29:01,692 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 19:29:01,692 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 19:29:01,693 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-22 19:29:01,693 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-22 19:29:01,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:29:01,697 INFO L85 PathProgramCache]: Analyzing trace with hash -337751957, now seen corresponding path program 1 times [2021-12-22 19:29:01,697 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 19:29:01,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582626974] [2021-12-22 19:29:01,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 19:29:01,698 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 19:29:01,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:01,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 19:29:01,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:01,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 19:29:01,730 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 19:29:01,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582626974] [2021-12-22 19:29:01,730 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582626974] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 19:29:01,730 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 19:29:01,730 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-22 19:29:01,731 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249937334] [2021-12-22 19:29:01,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 19:29:01,731 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-22 19:29:01,731 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 19:29:01,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-22 19:29:01,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-22 19:29:01,732 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-22 19:29:01,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 19:29:01,744 INFO L93 Difference]: Finished difference Result 25 states and 28 transitions. [2021-12-22 19:29:01,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-22 19:29:01,758 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2021-12-22 19:29:01,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 19:29:01,760 INFO L225 Difference]: With dead ends: 25 [2021-12-22 19:29:01,760 INFO L226 Difference]: Without dead ends: 21 [2021-12-22 19:29:01,760 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-22 19:29:01,761 INFO L933 BasicCegarLoop]: 25 mSDtfsCounter, 3 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-22 19:29:01,762 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 69 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 19:29:01,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2021-12-22 19:29:01,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2021-12-22 19:29:01,765 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) [2021-12-22 19:29:01,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2021-12-22 19:29:01,766 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 11 [2021-12-22 19:29:01,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 19:29:01,766 INFO L470 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2021-12-22 19:29:01,766 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-22 19:29:01,766 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2021-12-22 19:29:01,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-12-22 19:29:01,767 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 19:29:01,767 INFO L514 BasicCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 19:29:01,767 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-22 19:29:01,767 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-22 19:29:01,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:29:01,768 INFO L85 PathProgramCache]: Analyzing trace with hash -332002831, now seen corresponding path program 1 times [2021-12-22 19:29:01,768 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 19:29:01,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821262516] [2021-12-22 19:29:01,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 19:29:01,769 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 19:29:01,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:01,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-22 19:29:01,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:01,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 19:29:01,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:01,884 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-22 19:29:01,884 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 19:29:01,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821262516] [2021-12-22 19:29:01,884 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821262516] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 19:29:01,884 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 19:29:01,884 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-22 19:29:01,884 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900795402] [2021-12-22 19:29:01,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 19:29:01,885 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 19:29:01,885 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 19:29:01,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 19:29:01,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-22 19:29:01,885 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) [2021-12-22 19:29:01,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 19:29:01,908 INFO L93 Difference]: Finished difference Result 37 states and 43 transitions. [2021-12-22 19:29:01,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 19:29:01,908 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 30 [2021-12-22 19:29:01,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 19:29:01,909 INFO L225 Difference]: With dead ends: 37 [2021-12-22 19:29:01,909 INFO L226 Difference]: Without dead ends: 35 [2021-12-22 19:29:01,909 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 [2021-12-22 19:29:01,910 INFO L933 BasicCegarLoop]: 19 mSDtfsCounter, 6 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-22 19:29:01,910 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 71 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 19:29:01,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2021-12-22 19:29:01,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 30. [2021-12-22 19:29:01,915 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) [2021-12-22 19:29:01,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 36 transitions. [2021-12-22 19:29:01,916 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 36 transitions. Word has length 30 [2021-12-22 19:29:01,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 19:29:01,916 INFO L470 AbstractCegarLoop]: Abstraction has 30 states and 36 transitions. [2021-12-22 19:29:01,916 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) [2021-12-22 19:29:01,916 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 36 transitions. [2021-12-22 19:29:01,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-12-22 19:29:01,917 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 19:29:01,917 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] [2021-12-22 19:29:01,918 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-22 19:29:01,918 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-22 19:29:01,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:29:01,918 INFO L85 PathProgramCache]: Analyzing trace with hash -1690949841, now seen corresponding path program 1 times [2021-12-22 19:29:01,918 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 19:29:01,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331723509] [2021-12-22 19:29:01,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 19:29:01,919 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 19:29:01,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:01,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-22 19:29:01,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:01,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 19:29:01,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:01,979 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-22 19:29:01,979 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 19:29:01,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331723509] [2021-12-22 19:29:01,980 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331723509] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 19:29:01,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1917792124] [2021-12-22 19:29:01,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 19:29:01,980 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 19:29:01,980 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:29:01,981 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) [2021-12-22 19:29:01,982 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-22 19:29:02,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:02,016 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-22 19:29:02,019 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 19:29:02,160 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-12-22 19:29:02,160 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-22 19:29:02,286 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-12-22 19:29:02,286 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1917792124] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-22 19:29:02,286 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-22 19:29:02,286 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7, 7] total 15 [2021-12-22 19:29:02,286 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712482287] [2021-12-22 19:29:02,286 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-22 19:29:02,287 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-12-22 19:29:02,287 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 19:29:02,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-12-22 19:29:02,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2021-12-22 19:29:02,287 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) [2021-12-22 19:29:02,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 19:29:02,531 INFO L93 Difference]: Finished difference Result 91 states and 129 transitions. [2021-12-22 19:29:02,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-22 19:29:02,535 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 [2021-12-22 19:29:02,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 19:29:02,536 INFO L225 Difference]: With dead ends: 91 [2021-12-22 19:29:02,536 INFO L226 Difference]: Without dead ends: 65 [2021-12-22 19:29:02,537 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 [2021-12-22 19:29:02,538 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 107 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-22 19:29:02,538 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 101 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-22 19:29:02,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2021-12-22 19:29:02,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 53. [2021-12-22 19:29:02,546 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) [2021-12-22 19:29:02,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 68 transitions. [2021-12-22 19:29:02,547 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 68 transitions. Word has length 31 [2021-12-22 19:29:02,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 19:29:02,547 INFO L470 AbstractCegarLoop]: Abstraction has 53 states and 68 transitions. [2021-12-22 19:29:02,548 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) [2021-12-22 19:29:02,548 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 68 transitions. [2021-12-22 19:29:02,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-12-22 19:29:02,548 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 19:29:02,549 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] [2021-12-22 19:29:02,567 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-22 19:29:02,764 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 19:29:02,765 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-22 19:29:02,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:29:02,766 INFO L85 PathProgramCache]: Analyzing trace with hash -1550339203, now seen corresponding path program 2 times [2021-12-22 19:29:02,766 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 19:29:02,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690170173] [2021-12-22 19:29:02,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 19:29:02,766 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 19:29:02,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:02,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-22 19:29:02,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:02,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 19:29:02,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:02,845 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-12-22 19:29:02,845 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 19:29:02,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690170173] [2021-12-22 19:29:02,845 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690170173] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 19:29:02,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1988299950] [2021-12-22 19:29:02,845 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-22 19:29:02,846 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 19:29:02,846 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:29:02,847 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) [2021-12-22 19:29:02,848 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-22 19:29:02,872 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-22 19:29:02,872 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-22 19:29:02,873 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-22 19:29:02,874 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 19:29:02,942 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-12-22 19:29:02,942 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-22 19:29:02,942 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1988299950] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 19:29:02,942 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-22 19:29:02,942 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2021-12-22 19:29:02,942 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831532081] [2021-12-22 19:29:02,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 19:29:02,943 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 19:29:02,943 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 19:29:02,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 19:29:02,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-12-22 19:29:02,943 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) [2021-12-22 19:29:02,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 19:29:02,963 INFO L93 Difference]: Finished difference Result 61 states and 76 transitions. [2021-12-22 19:29:02,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 19:29:02,963 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 [2021-12-22 19:29:02,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 19:29:02,967 INFO L225 Difference]: With dead ends: 61 [2021-12-22 19:29:02,968 INFO L226 Difference]: Without dead ends: 60 [2021-12-22 19:29:02,968 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 [2021-12-22 19:29:02,969 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 [2021-12-22 19:29:02,969 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] [2021-12-22 19:29:02,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2021-12-22 19:29:02,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 55. [2021-12-22 19:29:02,983 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) [2021-12-22 19:29:02,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 70 transitions. [2021-12-22 19:29:02,984 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 70 transitions. Word has length 25 [2021-12-22 19:29:02,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 19:29:02,984 INFO L470 AbstractCegarLoop]: Abstraction has 55 states and 70 transitions. [2021-12-22 19:29:02,985 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) [2021-12-22 19:29:02,985 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 70 transitions. [2021-12-22 19:29:02,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-12-22 19:29:02,985 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 19:29:02,985 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] [2021-12-22 19:29:03,002 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-12-22 19:29:03,199 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-12-22 19:29:03,199 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting fibonacciErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-22 19:29:03,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:29:03,200 INFO L85 PathProgramCache]: Analyzing trace with hash -815874983, now seen corresponding path program 1 times [2021-12-22 19:29:03,200 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 19:29:03,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149755979] [2021-12-22 19:29:03,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 19:29:03,200 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 19:29:03,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:03,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-22 19:29:03,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:03,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 19:29:03,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:03,253 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-12-22 19:29:03,254 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 19:29:03,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149755979] [2021-12-22 19:29:03,254 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149755979] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 19:29:03,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [413743287] [2021-12-22 19:29:03,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 19:29:03,254 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 19:29:03,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:29:03,255 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) [2021-12-22 19:29:03,257 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-22 19:29:03,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:03,277 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-22 19:29:03,278 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 19:29:03,341 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-12-22 19:29:03,341 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-22 19:29:03,417 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-12-22 19:29:03,417 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [413743287] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-22 19:29:03,417 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-22 19:29:03,417 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 11 [2021-12-22 19:29:03,417 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460212136] [2021-12-22 19:29:03,417 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-22 19:29:03,418 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-22 19:29:03,418 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 19:29:03,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-22 19:29:03,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2021-12-22 19:29:03,419 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) [2021-12-22 19:29:03,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 19:29:03,484 INFO L93 Difference]: Finished difference Result 70 states and 94 transitions. [2021-12-22 19:29:03,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-22 19:29:03,484 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 [2021-12-22 19:29:03,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 19:29:03,485 INFO L225 Difference]: With dead ends: 70 [2021-12-22 19:29:03,485 INFO L226 Difference]: Without dead ends: 69 [2021-12-22 19:29:03,486 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 [2021-12-22 19:29:03,486 INFO L933 BasicCegarLoop]: 28 mSDtfsCounter, 17 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-22 19:29:03,486 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 147 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 19:29:03,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2021-12-22 19:29:03,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 67. [2021-12-22 19:29:03,492 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) [2021-12-22 19:29:03,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 91 transitions. [2021-12-22 19:29:03,492 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 91 transitions. Word has length 26 [2021-12-22 19:29:03,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 19:29:03,493 INFO L470 AbstractCegarLoop]: Abstraction has 67 states and 91 transitions. [2021-12-22 19:29:03,493 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) [2021-12-22 19:29:03,493 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 91 transitions. [2021-12-22 19:29:03,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-12-22 19:29:03,494 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 19:29:03,494 INFO L514 BasicCegarLoop]: trace histogram [5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 19:29:03,509 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-12-22 19:29:03,699 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 19:29:03,700 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-22 19:29:03,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:29:03,700 INFO L85 PathProgramCache]: Analyzing trace with hash 631942748, now seen corresponding path program 1 times [2021-12-22 19:29:03,700 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 19:29:03,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287732049] [2021-12-22 19:29:03,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 19:29:03,700 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 19:29:03,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:03,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-22 19:29:03,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:03,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:03,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:03,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:03,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:03,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-22 19:29:03,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:03,819 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-12-22 19:29:03,819 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 19:29:03,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287732049] [2021-12-22 19:29:03,820 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287732049] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 19:29:03,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [289432715] [2021-12-22 19:29:03,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 19:29:03,820 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 19:29:03,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:29:03,821 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) [2021-12-22 19:29:03,822 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-22 19:29:03,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:03,848 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-22 19:29:03,850 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 19:29:03,934 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2021-12-22 19:29:03,934 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-22 19:29:04,081 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-12-22 19:29:04,081 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [289432715] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-22 19:29:04,081 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-22 19:29:04,081 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 7] total 13 [2021-12-22 19:29:04,081 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669832571] [2021-12-22 19:29:04,081 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-22 19:29:04,082 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-12-22 19:29:04,082 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 19:29:04,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-12-22 19:29:04,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2021-12-22 19:29:04,086 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) [2021-12-22 19:29:04,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 19:29:04,193 INFO L93 Difference]: Finished difference Result 138 states and 205 transitions. [2021-12-22 19:29:04,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-12-22 19:29:04,194 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 14 states have internal predecessors, (37), 3 states have call successors, (4), 1 states have call predecessors, (4), 4 states have return successors, (8), 8 states have call predecessors, (8), 3 states have call successors, (8) Word has length 45 [2021-12-22 19:29:04,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 19:29:04,195 INFO L225 Difference]: With dead ends: 138 [2021-12-22 19:29:04,196 INFO L226 Difference]: Without dead ends: 137 [2021-12-22 19:29:04,196 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-22 19:29:04,197 INFO L933 BasicCegarLoop]: 25 mSDtfsCounter, 30 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-22 19:29:04,197 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 130 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-22 19:29:04,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2021-12-22 19:29:04,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 99. [2021-12-22 19:29:04,207 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) [2021-12-22 19:29:04,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 160 transitions. [2021-12-22 19:29:04,208 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 160 transitions. Word has length 45 [2021-12-22 19:29:04,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 19:29:04,208 INFO L470 AbstractCegarLoop]: Abstraction has 99 states and 160 transitions. [2021-12-22 19:29:04,209 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) [2021-12-22 19:29:04,209 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 160 transitions. [2021-12-22 19:29:04,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-12-22 19:29:04,210 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 19:29:04,210 INFO L514 BasicCegarLoop]: trace histogram [8, 6, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1] [2021-12-22 19:29:04,228 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-22 19:29:04,419 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 19:29:04,419 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting fibonacciErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-22 19:29:04,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:29:04,420 INFO L85 PathProgramCache]: Analyzing trace with hash -1516546273, now seen corresponding path program 1 times [2021-12-22 19:29:04,420 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 19:29:04,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001986263] [2021-12-22 19:29:04,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 19:29:04,420 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 19:29:04,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:04,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-22 19:29:04,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:04,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:04,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:04,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:04,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:04,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-22 19:29:04,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:04,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-22 19:29:04,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:04,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-22 19:29:04,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:04,514 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2021-12-22 19:29:04,515 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 19:29:04,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001986263] [2021-12-22 19:29:04,515 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001986263] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 19:29:04,515 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 19:29:04,515 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-22 19:29:04,515 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067084349] [2021-12-22 19:29:04,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 19:29:04,516 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 19:29:04,516 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 19:29:04,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 19:29:04,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-22 19:29:04,516 INFO L87 Difference]: Start difference. First operand 99 states and 160 transitions. Second operand has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-22 19:29:04,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 19:29:04,538 INFO L93 Difference]: Finished difference Result 112 states and 174 transitions. [2021-12-22 19:29:04,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 19:29:04,541 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 70 [2021-12-22 19:29:04,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 19:29:04,542 INFO L225 Difference]: With dead ends: 112 [2021-12-22 19:29:04,542 INFO L226 Difference]: Without dead ends: 111 [2021-12-22 19:29:04,542 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 [2021-12-22 19:29:04,543 INFO L933 BasicCegarLoop]: 23 mSDtfsCounter, 5 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-22 19:29:04,543 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 61 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 19:29:04,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2021-12-22 19:29:04,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 99. [2021-12-22 19:29:04,550 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) [2021-12-22 19:29:04,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 160 transitions. [2021-12-22 19:29:04,554 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 160 transitions. Word has length 70 [2021-12-22 19:29:04,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 19:29:04,554 INFO L470 AbstractCegarLoop]: Abstraction has 99 states and 160 transitions. [2021-12-22 19:29:04,554 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-22 19:29:04,555 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 160 transitions. [2021-12-22 19:29:04,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-12-22 19:29:04,556 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 19:29:04,557 INFO L514 BasicCegarLoop]: trace histogram [11, 9, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1] [2021-12-22 19:29:04,557 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-22 19:29:04,557 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting fibonacciErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-22 19:29:04,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:29:04,557 INFO L85 PathProgramCache]: Analyzing trace with hash 777324869, now seen corresponding path program 2 times [2021-12-22 19:29:04,557 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 19:29:04,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793611513] [2021-12-22 19:29:04,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 19:29:04,557 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 19:29:04,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:04,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-22 19:29:04,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:04,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:04,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:04,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:04,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:04,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-22 19:29:04,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:04,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:04,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:04,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:04,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:04,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:04,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:04,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:04,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:04,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-22 19:29:04,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:04,646 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2021-12-22 19:29:04,647 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 19:29:04,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793611513] [2021-12-22 19:29:04,647 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793611513] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 19:29:04,647 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 19:29:04,647 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-22 19:29:04,647 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074822616] [2021-12-22 19:29:04,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 19:29:04,647 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 19:29:04,647 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 19:29:04,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 19:29:04,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-22 19:29:04,648 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) [2021-12-22 19:29:04,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 19:29:04,679 INFO L93 Difference]: Finished difference Result 112 states and 174 transitions. [2021-12-22 19:29:04,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 19:29:04,679 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 99 [2021-12-22 19:29:04,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 19:29:04,681 INFO L225 Difference]: With dead ends: 112 [2021-12-22 19:29:04,681 INFO L226 Difference]: Without dead ends: 111 [2021-12-22 19:29:04,682 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 [2021-12-22 19:29:04,682 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 6 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-22 19:29:04,683 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 65 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 19:29:04,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2021-12-22 19:29:04,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 99. [2021-12-22 19:29:04,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 77 states have (on average 1.077922077922078) internal successors, (83), 76 states have internal predecessors, (83), 11 states have call successors, (11), 2 states have call predecessors, (11), 9 states have return successors, (66), 20 states have call predecessors, (66), 10 states have call successors, (66) [2021-12-22 19:29:04,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 160 transitions. [2021-12-22 19:29:04,706 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 160 transitions. Word has length 99 [2021-12-22 19:29:04,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 19:29:04,707 INFO L470 AbstractCegarLoop]: Abstraction has 99 states and 160 transitions. [2021-12-22 19:29:04,707 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) [2021-12-22 19:29:04,707 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 160 transitions. [2021-12-22 19:29:04,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-12-22 19:29:04,709 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 19:29:04,709 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] [2021-12-22 19:29:04,710 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-22 19:29:04,710 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-22 19:29:04,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:29:04,710 INFO L85 PathProgramCache]: Analyzing trace with hash -558108924, now seen corresponding path program 2 times [2021-12-22 19:29:04,710 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 19:29:04,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424094535] [2021-12-22 19:29:04,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 19:29:04,711 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 19:29:04,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:04,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-22 19:29:04,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:04,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:04,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:04,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:04,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:04,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-22 19:29:04,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:04,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:04,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:04,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:04,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:04,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:04,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:04,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:04,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:04,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:04,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:04,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:04,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:04,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:04,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:04,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:04,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:04,887 INFO L134 CoverageAnalysis]: Checked inductivity of 478 backedges. 61 proven. 158 refuted. 0 times theorem prover too weak. 259 trivial. 0 not checked. [2021-12-22 19:29:04,887 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 19:29:04,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424094535] [2021-12-22 19:29:04,887 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424094535] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 19:29:04,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [660638165] [2021-12-22 19:29:04,888 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-22 19:29:04,888 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 19:29:04,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:29:04,889 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) [2021-12-22 19:29:04,890 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-22 19:29:04,934 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-22 19:29:04,935 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-22 19:29:04,936 INFO L263 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-22 19:29:04,948 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 19:29:05,112 INFO L134 CoverageAnalysis]: Checked inductivity of 478 backedges. 68 proven. 206 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2021-12-22 19:29:05,112 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-22 19:29:05,452 INFO L134 CoverageAnalysis]: Checked inductivity of 478 backedges. 68 proven. 209 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2021-12-22 19:29:05,452 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [660638165] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-22 19:29:05,452 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-22 19:29:05,452 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 11] total 17 [2021-12-22 19:29:05,454 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851416347] [2021-12-22 19:29:05,454 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-22 19:29:05,454 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-12-22 19:29:05,455 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 19:29:05,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-12-22 19:29:05,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=196, Unknown=0, NotChecked=0, Total=272 [2021-12-22 19:29:05,455 INFO L87 Difference]: Start difference. First operand 99 states and 160 transitions. Second operand has 17 states, 17 states have (on average 5.294117647058823) internal successors, (90), 17 states have internal predecessors, (90), 12 states have call successors, (16), 1 states have call predecessors, (16), 5 states have return successors, (16), 8 states have call predecessors, (16), 12 states have call successors, (16) [2021-12-22 19:29:05,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 19:29:05,547 INFO L93 Difference]: Finished difference Result 178 states and 303 transitions. [2021-12-22 19:29:05,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-22 19:29:05,548 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.294117647058823) internal successors, (90), 17 states have internal predecessors, (90), 12 states have call successors, (16), 1 states have call predecessors, (16), 5 states have return successors, (16), 8 states have call predecessors, (16), 12 states have call successors, (16) Word has length 123 [2021-12-22 19:29:05,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 19:29:05,549 INFO L225 Difference]: With dead ends: 178 [2021-12-22 19:29:05,549 INFO L226 Difference]: Without dead ends: 83 [2021-12-22 19:29:05,550 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 261 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=284, Unknown=0, NotChecked=0, Total=420 [2021-12-22 19:29:05,551 INFO L933 BasicCegarLoop]: 16 mSDtfsCounter, 105 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-22 19:29:05,551 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 64 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-22 19:29:05,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2021-12-22 19:29:05,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 70. [2021-12-22 19:29:05,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 55 states have (on average 1.1090909090909091) internal successors, (61), 53 states have internal predecessors, (61), 7 states have call successors, (7), 4 states have call predecessors, (7), 6 states have return successors, (26), 12 states have call predecessors, (26), 6 states have call successors, (26) [2021-12-22 19:29:05,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 94 transitions. [2021-12-22 19:29:05,564 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 94 transitions. Word has length 123 [2021-12-22 19:29:05,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 19:29:05,564 INFO L470 AbstractCegarLoop]: Abstraction has 70 states and 94 transitions. [2021-12-22 19:29:05,564 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.294117647058823) internal successors, (90), 17 states have internal predecessors, (90), 12 states have call successors, (16), 1 states have call predecessors, (16), 5 states have return successors, (16), 8 states have call predecessors, (16), 12 states have call successors, (16) [2021-12-22 19:29:05,564 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 94 transitions. [2021-12-22 19:29:05,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2021-12-22 19:29:05,566 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 19:29:05,566 INFO L514 BasicCegarLoop]: trace histogram [19, 17, 15, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 4, 1, 1, 1, 1, 1] [2021-12-22 19:29:05,582 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-12-22 19:29:05,779 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-12-22 19:29:05,779 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-22 19:29:05,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:29:05,780 INFO L85 PathProgramCache]: Analyzing trace with hash -167323687, now seen corresponding path program 3 times [2021-12-22 19:29:05,780 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 19:29:05,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695090729] [2021-12-22 19:29:05,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 19:29:05,780 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 19:29:05,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:05,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-22 19:29:05,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:05,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:05,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:05,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:05,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:05,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:05,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:05,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:05,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:05,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-22 19:29:05,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:05,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:05,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:05,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:05,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:05,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:05,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:05,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:05,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:05,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-22 19:29:05,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:05,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:05,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:05,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:05,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:05,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:05,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:05,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:05,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:05,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:05,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:05,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-22 19:29:05,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:05,939 INFO L134 CoverageAnalysis]: Checked inductivity of 1048 backedges. 102 proven. 417 refuted. 0 times theorem prover too weak. 529 trivial. 0 not checked. [2021-12-22 19:29:05,939 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 19:29:05,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695090729] [2021-12-22 19:29:05,939 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695090729] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 19:29:05,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [391608872] [2021-12-22 19:29:05,940 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-22 19:29:05,940 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 19:29:05,940 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:29:05,941 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) [2021-12-22 19:29:05,942 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-22 19:29:05,977 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2021-12-22 19:29:05,978 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-22 19:29:05,978 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-22 19:29:05,981 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 19:29:06,211 INFO L134 CoverageAnalysis]: Checked inductivity of 1048 backedges. 313 proven. 21 refuted. 0 times theorem prover too weak. 714 trivial. 0 not checked. [2021-12-22 19:29:06,212 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-22 19:29:06,606 INFO L134 CoverageAnalysis]: Checked inductivity of 1048 backedges. 313 proven. 22 refuted. 0 times theorem prover too weak. 713 trivial. 0 not checked. [2021-12-22 19:29:06,607 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [391608872] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-22 19:29:06,607 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-22 19:29:06,607 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 8, 9] total 21 [2021-12-22 19:29:06,607 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994007339] [2021-12-22 19:29:06,607 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-22 19:29:06,608 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-12-22 19:29:06,608 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 19:29:06,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-12-22 19:29:06,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=324, Unknown=0, NotChecked=0, Total=420 [2021-12-22 19:29:06,608 INFO L87 Difference]: Start difference. First operand 70 states and 94 transitions. Second operand has 21 states, 21 states have (on average 4.714285714285714) internal successors, (99), 21 states have internal predecessors, (99), 11 states have call successors, (16), 2 states have call predecessors, (16), 8 states have return successors, (18), 13 states have call predecessors, (18), 10 states have call successors, (18) [2021-12-22 19:29:06,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 19:29:06,794 INFO L93 Difference]: Finished difference Result 141 states and 198 transitions. [2021-12-22 19:29:06,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-22 19:29:06,794 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 4.714285714285714) internal successors, (99), 21 states have internal predecessors, (99), 11 states have call successors, (16), 2 states have call predecessors, (16), 8 states have return successors, (18), 13 states have call predecessors, (18), 10 states have call successors, (18) Word has length 177 [2021-12-22 19:29:06,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 19:29:06,795 INFO L225 Difference]: With dead ends: 141 [2021-12-22 19:29:06,795 INFO L226 Difference]: Without dead ends: 75 [2021-12-22 19:29:06,796 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 409 GetRequests, 380 SyntacticMatches, 2 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=210, Invalid=602, Unknown=0, NotChecked=0, Total=812 [2021-12-22 19:29:06,796 INFO L933 BasicCegarLoop]: 29 mSDtfsCounter, 170 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-22 19:29:06,796 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [170 Valid, 123 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-22 19:29:06,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2021-12-22 19:29:06,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 65. [2021-12-22 19:29:06,799 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) [2021-12-22 19:29:06,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 73 transitions. [2021-12-22 19:29:06,799 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 73 transitions. Word has length 177 [2021-12-22 19:29:06,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 19:29:06,800 INFO L470 AbstractCegarLoop]: Abstraction has 65 states and 73 transitions. [2021-12-22 19:29:06,800 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 4.714285714285714) internal successors, (99), 21 states have internal predecessors, (99), 11 states have call successors, (16), 2 states have call predecessors, (16), 8 states have return successors, (18), 13 states have call predecessors, (18), 10 states have call successors, (18) [2021-12-22 19:29:06,800 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 73 transitions. [2021-12-22 19:29:06,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-12-22 19:29:06,800 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 19:29:06,800 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] [2021-12-22 19:29:06,825 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-12-22 19:29:07,014 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 19:29:07,014 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting fibonacciErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-22 19:29:07,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:29:07,014 INFO L85 PathProgramCache]: Analyzing trace with hash -1596262010, now seen corresponding path program 3 times [2021-12-22 19:29:07,014 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 19:29:07,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972659227] [2021-12-22 19:29:07,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 19:29:07,015 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 19:29:07,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:07,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-22 19:29:07,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:07,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:07,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:07,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:07,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:07,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:07,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:07,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:07,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:07,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-22 19:29:07,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:07,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:07,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:07,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:07,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:07,112 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 38 proven. 23 refuted. 0 times theorem prover too weak. 185 trivial. 0 not checked. [2021-12-22 19:29:07,112 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 19:29:07,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972659227] [2021-12-22 19:29:07,112 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972659227] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 19:29:07,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [615624309] [2021-12-22 19:29:07,112 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-22 19:29:07,112 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 19:29:07,112 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:29:07,113 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) [2021-12-22 19:29:07,114 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-22 19:29:07,146 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-12-22 19:29:07,146 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-22 19:29:07,146 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-22 19:29:07,149 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 19:29:07,273 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 62 proven. 5 refuted. 0 times theorem prover too weak. 179 trivial. 0 not checked. [2021-12-22 19:29:07,273 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-22 19:29:07,445 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 62 proven. 5 refuted. 0 times theorem prover too weak. 179 trivial. 0 not checked. [2021-12-22 19:29:07,445 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [615624309] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-22 19:29:07,445 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-22 19:29:07,445 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 7] total 14 [2021-12-22 19:29:07,446 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745307919] [2021-12-22 19:29:07,446 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-22 19:29:07,446 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-12-22 19:29:07,446 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 19:29:07,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-12-22 19:29:07,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2021-12-22 19:29:07,447 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) [2021-12-22 19:29:07,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 19:29:07,500 INFO L93 Difference]: Finished difference Result 65 states and 73 transitions. [2021-12-22 19:29:07,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-22 19:29:07,500 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 [2021-12-22 19:29:07,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 19:29:07,501 INFO L225 Difference]: With dead ends: 65 [2021-12-22 19:29:07,501 INFO L226 Difference]: Without dead ends: 64 [2021-12-22 19:29:07,501 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 [2021-12-22 19:29:07,502 INFO L933 BasicCegarLoop]: 27 mSDtfsCounter, 12 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-22 19:29:07,502 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 176 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 19:29:07,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2021-12-22 19:29:07,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2021-12-22 19:29:07,506 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) [2021-12-22 19:29:07,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 72 transitions. [2021-12-22 19:29:07,507 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 72 transitions. Word has length 91 [2021-12-22 19:29:07,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 19:29:07,507 INFO L470 AbstractCegarLoop]: Abstraction has 64 states and 72 transitions. [2021-12-22 19:29:07,507 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) [2021-12-22 19:29:07,507 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 72 transitions. [2021-12-22 19:29:07,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2021-12-22 19:29:07,509 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 19:29:07,510 INFO L514 BasicCegarLoop]: trace histogram [25, 23, 20, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 10, 10, 8, 5, 1, 1, 1, 1, 1] [2021-12-22 19:29:07,526 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2021-12-22 19:29:07,723 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 19:29:07,723 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-22 19:29:07,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:29:07,724 INFO L85 PathProgramCache]: Analyzing trace with hash 1496476088, now seen corresponding path program 4 times [2021-12-22 19:29:07,724 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 19:29:07,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374379467] [2021-12-22 19:29:07,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 19:29:07,726 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 19:29:07,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:07,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-22 19:29:07,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:07,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:07,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:07,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:07,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:07,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:07,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:07,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:07,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:07,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:07,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:07,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-22 19:29:07,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:07,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:07,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:07,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:07,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:07,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-22 19:29:07,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:07,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:07,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:07,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:07,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:07,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:07,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:07,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:07,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:07,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:07,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:07,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-22 19:29:07,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:07,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:07,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:07,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:07,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:07,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-12-22 19:29:07,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:07,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:07,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:07,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:07,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:07,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:07,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:07,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:07,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:07,906 INFO L134 CoverageAnalysis]: Checked inductivity of 1913 backedges. 245 proven. 631 refuted. 0 times theorem prover too weak. 1037 trivial. 0 not checked. [2021-12-22 19:29:07,906 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 19:29:07,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374379467] [2021-12-22 19:29:07,906 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374379467] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 19:29:07,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [896964669] [2021-12-22 19:29:07,907 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-12-22 19:29:07,907 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 19:29:07,907 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:29:07,907 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) [2021-12-22 19:29:07,909 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-12-22 19:29:07,965 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-12-22 19:29:07,965 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-22 19:29:07,966 INFO L263 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 18 conjunts are in the unsatisfiable core [2021-12-22 19:29:07,969 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 19:29:08,290 INFO L134 CoverageAnalysis]: Checked inductivity of 1913 backedges. 893 proven. 533 refuted. 0 times theorem prover too weak. 487 trivial. 0 not checked. [2021-12-22 19:29:08,291 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-22 19:29:09,114 INFO L134 CoverageAnalysis]: Checked inductivity of 1913 backedges. 273 proven. 850 refuted. 0 times theorem prover too weak. 790 trivial. 0 not checked. [2021-12-22 19:29:09,114 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [896964669] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-22 19:29:09,114 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-22 19:29:09,115 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13, 18] total 26 [2021-12-22 19:29:09,115 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612915119] [2021-12-22 19:29:09,115 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-22 19:29:09,115 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-12-22 19:29:09,115 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 19:29:09,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-12-22 19:29:09,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=159, Invalid=491, Unknown=0, NotChecked=0, Total=650 [2021-12-22 19:29:09,116 INFO L87 Difference]: Start difference. First operand 64 states and 72 transitions. Second operand has 26 states, 26 states have (on average 5.884615384615385) internal successors, (153), 26 states have internal predecessors, (153), 22 states have call successors, (29), 3 states have call predecessors, (29), 9 states have return successors, (34), 14 states have call predecessors, (34), 21 states have call successors, (34) [2021-12-22 19:29:09,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 19:29:09,381 INFO L93 Difference]: Finished difference Result 153 states and 185 transitions. [2021-12-22 19:29:09,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-12-22 19:29:09,382 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.884615384615385) internal successors, (153), 26 states have internal predecessors, (153), 22 states have call successors, (29), 3 states have call predecessors, (29), 9 states have return successors, (34), 14 states have call predecessors, (34), 21 states have call successors, (34) Word has length 236 [2021-12-22 19:29:09,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 19:29:09,382 INFO L225 Difference]: With dead ends: 153 [2021-12-22 19:29:09,382 INFO L226 Difference]: Without dead ends: 95 [2021-12-22 19:29:09,383 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 547 GetRequests, 508 SyntacticMatches, 2 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 376 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=428, Invalid=1054, Unknown=0, NotChecked=0, Total=1482 [2021-12-22 19:29:09,383 INFO L933 BasicCegarLoop]: 22 mSDtfsCounter, 214 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-22 19:29:09,384 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [214 Valid, 111 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-22 19:29:09,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2021-12-22 19:29:09,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 82. [2021-12-22 19:29:09,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 66 states have (on average 1.0757575757575757) internal successors, (71), 63 states have internal predecessors, (71), 9 states have call successors, (9), 8 states have call predecessors, (9), 6 states have return successors, (17), 10 states have call predecessors, (17), 8 states have call successors, (17) [2021-12-22 19:29:09,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 97 transitions. [2021-12-22 19:29:09,387 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 97 transitions. Word has length 236 [2021-12-22 19:29:09,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 19:29:09,388 INFO L470 AbstractCegarLoop]: Abstraction has 82 states and 97 transitions. [2021-12-22 19:29:09,388 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) [2021-12-22 19:29:09,388 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 97 transitions. [2021-12-22 19:29:09,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-12-22 19:29:09,389 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 19:29:09,389 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] [2021-12-22 19:29:09,407 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-12-22 19:29:09,603 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-12-22 19:29:09,604 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-22 19:29:09,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:29:09,604 INFO L85 PathProgramCache]: Analyzing trace with hash 361843588, now seen corresponding path program 5 times [2021-12-22 19:29:09,604 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 19:29:09,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795204865] [2021-12-22 19:29:09,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 19:29:09,604 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 19:29:09,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:09,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-22 19:29:09,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:09,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:09,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:09,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:09,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:09,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:09,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:09,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:09,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:09,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:09,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:09,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-22 19:29:09,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:09,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:09,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:09,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:09,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:09,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-22 19:29:09,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:09,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:09,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:09,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:09,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:09,706 INFO L134 CoverageAnalysis]: Checked inductivity of 478 backedges. 197 proven. 68 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2021-12-22 19:29:09,706 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 19:29:09,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795204865] [2021-12-22 19:29:09,706 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795204865] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 19:29:09,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [468468437] [2021-12-22 19:29:09,706 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-12-22 19:29:09,706 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 19:29:09,707 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:29:09,707 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) [2021-12-22 19:29:09,708 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-12-22 19:29:09,752 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2021-12-22 19:29:09,752 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-22 19:29:09,753 INFO L263 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 12 conjunts are in the unsatisfiable core [2021-12-22 19:29:09,754 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 19:29:09,929 INFO L134 CoverageAnalysis]: Checked inductivity of 478 backedges. 158 proven. 137 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2021-12-22 19:29:09,930 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-22 19:29:10,355 INFO L134 CoverageAnalysis]: Checked inductivity of 478 backedges. 162 proven. 142 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2021-12-22 19:29:10,355 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [468468437] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-22 19:29:10,355 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-22 19:29:10,355 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 13] total 20 [2021-12-22 19:29:10,355 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741858944] [2021-12-22 19:29:10,355 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-22 19:29:10,356 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-12-22 19:29:10,356 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 19:29:10,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-12-22 19:29:10,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=283, Unknown=0, NotChecked=0, Total=380 [2021-12-22 19:29:10,356 INFO L87 Difference]: Start difference. First operand 82 states and 97 transitions. Second operand has 20 states, 20 states have (on average 5.2) internal successors, (104), 20 states have internal predecessors, (104), 12 states have call successors, (18), 1 states have call predecessors, (18), 7 states have return successors, (20), 12 states have call predecessors, (20), 12 states have call successors, (20) [2021-12-22 19:29:10,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 19:29:10,529 INFO L93 Difference]: Finished difference Result 162 states and 202 transitions. [2021-12-22 19:29:10,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-22 19:29:10,529 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 [2021-12-22 19:29:10,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 19:29:10,530 INFO L225 Difference]: With dead ends: 162 [2021-12-22 19:29:10,530 INFO L226 Difference]: Without dead ends: 86 [2021-12-22 19:29:10,532 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 [2021-12-22 19:29:10,533 INFO L933 BasicCegarLoop]: 34 mSDtfsCounter, 63 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-22 19:29:10,533 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 122 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-22 19:29:10,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2021-12-22 19:29:10,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 83. [2021-12-22 19:29:10,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 66 states have (on average 1.0454545454545454) internal successors, (69), 65 states have internal predecessors, (69), 10 states have call successors, (10), 8 states have call predecessors, (10), 6 states have return successors, (18), 9 states have call predecessors, (18), 9 states have call successors, (18) [2021-12-22 19:29:10,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 97 transitions. [2021-12-22 19:29:10,538 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 97 transitions. Word has length 123 [2021-12-22 19:29:10,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 19:29:10,538 INFO L470 AbstractCegarLoop]: Abstraction has 83 states and 97 transitions. [2021-12-22 19:29:10,538 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) [2021-12-22 19:29:10,538 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 97 transitions. [2021-12-22 19:29:10,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2021-12-22 19:29:10,539 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 19:29:10,539 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] [2021-12-22 19:29:10,565 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-12-22 19:29:10,755 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-12-22 19:29:10,755 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-22 19:29:10,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:29:10,756 INFO L85 PathProgramCache]: Analyzing trace with hash 534661593, now seen corresponding path program 6 times [2021-12-22 19:29:10,756 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 19:29:10,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640996538] [2021-12-22 19:29:10,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 19:29:10,756 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 19:29:10,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:10,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-22 19:29:10,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:10,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:10,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:10,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:10,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:10,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:10,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:10,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:10,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:10,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:10,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:10,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-22 19:29:10,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:10,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:10,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:10,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:10,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:10,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-22 19:29:10,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:10,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:10,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:10,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:10,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:10,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:10,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:10,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:10,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:10,920 INFO L134 CoverageAnalysis]: Checked inductivity of 725 backedges. 78 proven. 129 refuted. 0 times theorem prover too weak. 518 trivial. 0 not checked. [2021-12-22 19:29:10,921 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 19:29:10,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640996538] [2021-12-22 19:29:10,921 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640996538] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 19:29:10,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2133827553] [2021-12-22 19:29:10,921 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-12-22 19:29:10,921 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 19:29:10,921 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:29:10,922 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) [2021-12-22 19:29:10,947 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-12-22 19:29:10,983 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 13 check-sat command(s) [2021-12-22 19:29:10,983 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-22 19:29:10,984 INFO L263 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 29 conjunts are in the unsatisfiable core [2021-12-22 19:29:10,986 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 19:29:11,264 INFO L134 CoverageAnalysis]: Checked inductivity of 725 backedges. 78 proven. 129 refuted. 0 times theorem prover too weak. 518 trivial. 0 not checked. [2021-12-22 19:29:11,265 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-22 19:29:12,098 INFO L134 CoverageAnalysis]: Checked inductivity of 725 backedges. 144 proven. 122 refuted. 0 times theorem prover too weak. 459 trivial. 0 not checked. [2021-12-22 19:29:12,098 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2133827553] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-22 19:29:12,098 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-22 19:29:12,098 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 17] total 26 [2021-12-22 19:29:12,098 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682652674] [2021-12-22 19:29:12,098 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-22 19:29:12,099 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-12-22 19:29:12,099 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 19:29:12,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-12-22 19:29:12,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=168, Invalid=534, Unknown=0, NotChecked=0, Total=702 [2021-12-22 19:29:12,100 INFO L87 Difference]: Start difference. First operand 83 states and 97 transitions. Second operand has 27 states, 26 states have (on average 2.6538461538461537) internal successors, (69), 27 states have internal predecessors, (69), 7 states have call successors, (8), 1 states have call predecessors, (8), 7 states have return successors, (18), 18 states have call predecessors, (18), 7 states have call successors, (18) [2021-12-22 19:29:12,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 19:29:12,201 INFO L93 Difference]: Finished difference Result 114 states and 145 transitions. [2021-12-22 19:29:12,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-12-22 19:29:12,201 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 [2021-12-22 19:29:12,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 19:29:12,202 INFO L225 Difference]: With dead ends: 114 [2021-12-22 19:29:12,203 INFO L226 Difference]: Without dead ends: 113 [2021-12-22 19:29:12,203 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 356 GetRequests, 328 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 329 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=200, Invalid=670, Unknown=0, NotChecked=0, Total=870 [2021-12-22 19:29:12,203 INFO L933 BasicCegarLoop]: 27 mSDtfsCounter, 35 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-22 19:29:12,204 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 165 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-22 19:29:12,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2021-12-22 19:29:12,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 103. [2021-12-22 19:29:12,208 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) [2021-12-22 19:29:12,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 131 transitions. [2021-12-22 19:29:12,209 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 131 transitions. Word has length 149 [2021-12-22 19:29:12,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 19:29:12,209 INFO L470 AbstractCegarLoop]: Abstraction has 103 states and 131 transitions. [2021-12-22 19:29:12,209 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) [2021-12-22 19:29:12,209 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 131 transitions. [2021-12-22 19:29:12,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2021-12-22 19:29:12,211 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 19:29:12,211 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] [2021-12-22 19:29:12,230 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2021-12-22 19:29:12,430 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-12-22 19:29:12,431 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-22 19:29:12,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:29:12,431 INFO L85 PathProgramCache]: Analyzing trace with hash -1985047649, now seen corresponding path program 7 times [2021-12-22 19:29:12,431 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 19:29:12,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872115130] [2021-12-22 19:29:12,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 19:29:12,431 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 19:29:12,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:12,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-22 19:29:12,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:12,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:12,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:12,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:12,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:12,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:12,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:12,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:12,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:12,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:12,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:12,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:12,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:12,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-22 19:29:12,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:12,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:12,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:12,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:12,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:12,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-22 19:29:12,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:12,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:12,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:12,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:12,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:12,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:12,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:12,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:12,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:12,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-22 19:29:12,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:12,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:12,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:12,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:12,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:12,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:12,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:12,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:12,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:12,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:12,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:12,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:12,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:12,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-22 19:29:12,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:12,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:12,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:12,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:12,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:12,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-22 19:29:12,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:12,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:12,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:12,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:12,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:12,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:12,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:12,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:12,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:12,745 INFO L134 CoverageAnalysis]: Checked inductivity of 3268 backedges. 534 proven. 998 refuted. 0 times theorem prover too weak. 1736 trivial. 0 not checked. [2021-12-22 19:29:12,745 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 19:29:12,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872115130] [2021-12-22 19:29:12,745 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872115130] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 19:29:12,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1766709154] [2021-12-22 19:29:12,745 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-12-22 19:29:12,746 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 19:29:12,746 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:29:12,747 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) [2021-12-22 19:29:12,767 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-12-22 19:29:12,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:12,842 INFO L263 TraceCheckSpWp]: Trace formula consists of 590 conjuncts, 22 conjunts are in the unsatisfiable core [2021-12-22 19:29:12,845 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 19:29:13,224 INFO L134 CoverageAnalysis]: Checked inductivity of 3268 backedges. 599 proven. 1181 refuted. 0 times theorem prover too weak. 1488 trivial. 0 not checked. [2021-12-22 19:29:13,224 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-22 19:29:14,549 INFO L134 CoverageAnalysis]: Checked inductivity of 3268 backedges. 599 proven. 1253 refuted. 0 times theorem prover too weak. 1416 trivial. 0 not checked. [2021-12-22 19:29:14,549 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1766709154] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-22 19:29:14,549 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-22 19:29:14,549 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 15, 23] total 33 [2021-12-22 19:29:14,549 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852966369] [2021-12-22 19:29:14,549 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-22 19:29:14,550 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2021-12-22 19:29:14,550 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 19:29:14,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-12-22 19:29:14,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=257, Invalid=799, Unknown=0, NotChecked=0, Total=1056 [2021-12-22 19:29:14,551 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) [2021-12-22 19:29:14,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 19:29:14,926 INFO L93 Difference]: Finished difference Result 239 states and 328 transitions. [2021-12-22 19:29:14,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-12-22 19:29:14,926 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 [2021-12-22 19:29:14,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 19:29:14,928 INFO L225 Difference]: With dead ends: 239 [2021-12-22 19:29:14,928 INFO L226 Difference]: Without dead ends: 142 [2021-12-22 19:29:14,929 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 [2021-12-22 19:29:14,929 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 444 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 286 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 448 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 286 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-22 19:29:14,930 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [448 Valid, 155 Invalid, 620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [286 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-22 19:29:14,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2021-12-22 19:29:14,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 129. [2021-12-22 19:29:14,934 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) [2021-12-22 19:29:14,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 161 transitions. [2021-12-22 19:29:14,935 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 161 transitions. Word has length 306 [2021-12-22 19:29:14,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 19:29:14,936 INFO L470 AbstractCegarLoop]: Abstraction has 129 states and 161 transitions. [2021-12-22 19:29:14,936 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) [2021-12-22 19:29:14,936 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 161 transitions. [2021-12-22 19:29:14,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2021-12-22 19:29:14,937 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 19:29:14,937 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] [2021-12-22 19:29:14,957 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-12-22 19:29:15,147 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-12-22 19:29:15,147 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-22 19:29:15,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:29:15,148 INFO L85 PathProgramCache]: Analyzing trace with hash -448813433, now seen corresponding path program 8 times [2021-12-22 19:29:15,148 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 19:29:15,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322481378] [2021-12-22 19:29:15,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 19:29:15,148 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 19:29:15,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:15,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-22 19:29:15,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:15,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:15,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:15,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:15,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:15,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:15,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:15,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:15,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:15,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:15,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:15,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:15,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:15,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:15,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:15,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-22 19:29:15,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:15,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:15,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:15,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:15,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:15,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-22 19:29:15,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:15,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:15,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:15,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:15,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:15,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:15,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:15,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:15,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:15,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-22 19:29:15,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:15,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:15,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:15,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:15,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:15,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:15,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:15,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:15,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:15,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-12-22 19:29:15,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:15,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:15,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:15,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:15,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:15,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:15,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:15,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:15,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:15,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:15,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:15,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-22 19:29:15,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:15,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:15,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:15,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:15,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:15,398 INFO L134 CoverageAnalysis]: Checked inductivity of 3268 backedges. 609 proven. 736 refuted. 0 times theorem prover too weak. 1923 trivial. 0 not checked. [2021-12-22 19:29:15,398 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 19:29:15,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322481378] [2021-12-22 19:29:15,398 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322481378] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 19:29:15,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1908757236] [2021-12-22 19:29:15,398 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-22 19:29:15,398 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 19:29:15,399 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:29:15,399 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-22 19:29:15,400 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-12-22 19:29:15,506 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-22 19:29:15,507 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-22 19:29:15,509 INFO L263 TraceCheckSpWp]: Trace formula consists of 590 conjuncts, 18 conjunts are in the unsatisfiable core [2021-12-22 19:29:15,512 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 19:29:15,882 INFO L134 CoverageAnalysis]: Checked inductivity of 3268 backedges. 1849 proven. 484 refuted. 0 times theorem prover too weak. 935 trivial. 0 not checked. [2021-12-22 19:29:15,882 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-22 19:29:17,142 INFO L134 CoverageAnalysis]: Checked inductivity of 3268 backedges. 538 proven. 1101 refuted. 0 times theorem prover too weak. 1629 trivial. 0 not checked. [2021-12-22 19:29:17,142 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1908757236] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-22 19:29:17,142 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-22 19:29:17,142 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13, 19] total 27 [2021-12-22 19:29:17,142 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35067448] [2021-12-22 19:29:17,142 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-22 19:29:17,143 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-12-22 19:29:17,143 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 19:29:17,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-12-22 19:29:17,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=176, Invalid=526, Unknown=0, NotChecked=0, Total=702 [2021-12-22 19:29:17,144 INFO L87 Difference]: Start difference. First operand 129 states and 161 transitions. Second operand has 27 states, 27 states have (on average 5.62962962962963) internal successors, (152), 27 states have internal predecessors, (152), 22 states have call successors, (28), 2 states have call predecessors, (28), 10 states have return successors, (36), 14 states have call predecessors, (36), 22 states have call successors, (36) [2021-12-22 19:29:17,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 19:29:17,420 INFO L93 Difference]: Finished difference Result 241 states and 314 transitions. [2021-12-22 19:29:17,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-12-22 19:29:17,420 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 5.62962962962963) internal successors, (152), 27 states have internal predecessors, (152), 22 states have call successors, (28), 2 states have call predecessors, (28), 10 states have return successors, (36), 14 states have call predecessors, (36), 22 states have call successors, (36) Word has length 306 [2021-12-22 19:29:17,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 19:29:17,421 INFO L225 Difference]: With dead ends: 241 [2021-12-22 19:29:17,422 INFO L226 Difference]: Without dead ends: 118 [2021-12-22 19:29:17,422 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 694 GetRequests, 659 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 314 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=332, Invalid=858, Unknown=0, NotChecked=0, Total=1190 [2021-12-22 19:29:17,423 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 269 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 180 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 180 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-22 19:29:17,423 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [270 Valid, 179 Invalid, 562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [180 Valid, 382 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-22 19:29:17,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2021-12-22 19:29:17,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 106. [2021-12-22 19:29:17,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 85 states have (on average 1.035294117647059) internal successors, (88), 83 states have internal predecessors, (88), 13 states have call successors, (13), 10 states have call predecessors, (13), 7 states have return successors, (26), 12 states have call predecessors, (26), 12 states have call successors, (26) [2021-12-22 19:29:17,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 127 transitions. [2021-12-22 19:29:17,427 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 127 transitions. Word has length 306 [2021-12-22 19:29:17,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 19:29:17,428 INFO L470 AbstractCegarLoop]: Abstraction has 106 states and 127 transitions. [2021-12-22 19:29:17,428 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 5.62962962962963) internal successors, (152), 27 states have internal predecessors, (152), 22 states have call successors, (28), 2 states have call predecessors, (28), 10 states have return successors, (36), 14 states have call predecessors, (36), 22 states have call successors, (36) [2021-12-22 19:29:17,428 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 127 transitions. [2021-12-22 19:29:17,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2021-12-22 19:29:17,429 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 19:29:17,429 INFO L514 BasicCegarLoop]: trace histogram [36, 34, 29, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 17, 16, 16, 11, 7, 1, 1, 1, 1, 1] [2021-12-22 19:29:17,447 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-12-22 19:29:17,647 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-12-22 19:29:17,647 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-22 19:29:17,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:29:17,648 INFO L85 PathProgramCache]: Analyzing trace with hash -101090713, now seen corresponding path program 9 times [2021-12-22 19:29:17,648 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 19:29:17,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140547279] [2021-12-22 19:29:17,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 19:29:17,648 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 19:29:17,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:17,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-22 19:29:17,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:17,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:17,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:17,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:17,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:17,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:17,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:17,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:17,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:17,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:17,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:17,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:17,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:17,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:17,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:17,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-22 19:29:17,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:17,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:17,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:17,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:17,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:17,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-22 19:29:17,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:17,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:17,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:17,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:17,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:17,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:17,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:17,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:17,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:17,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-22 19:29:17,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:17,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:17,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:17,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:17,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:17,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:17,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:17,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:17,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:17,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:17,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:17,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-22 19:29:17,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:17,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:17,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:17,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:17,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:17,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2021-12-22 19:29:17,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:17,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:17,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:17,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:17,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:17,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:17,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:17,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:17,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:17,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:17,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:17,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-22 19:29:17,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:17,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:17,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:17,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:17,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:17,936 INFO L134 CoverageAnalysis]: Checked inductivity of 4183 backedges. 988 proven. 816 refuted. 0 times theorem prover too weak. 2379 trivial. 0 not checked. [2021-12-22 19:29:17,936 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 19:29:17,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140547279] [2021-12-22 19:29:17,936 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140547279] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 19:29:17,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [596558652] [2021-12-22 19:29:17,936 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-22 19:29:17,936 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 19:29:17,937 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:29:17,937 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) [2021-12-22 19:29:17,938 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-12-22 19:29:18,043 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2021-12-22 19:29:18,043 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-22 19:29:18,045 INFO L263 TraceCheckSpWp]: Trace formula consists of 399 conjuncts, 16 conjunts are in the unsatisfiable core [2021-12-22 19:29:18,048 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 19:29:18,487 INFO L134 CoverageAnalysis]: Checked inductivity of 4183 backedges. 1125 proven. 412 refuted. 0 times theorem prover too weak. 2646 trivial. 0 not checked. [2021-12-22 19:29:18,487 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-22 19:29:19,403 INFO L134 CoverageAnalysis]: Checked inductivity of 4183 backedges. 1125 proven. 448 refuted. 0 times theorem prover too weak. 2610 trivial. 0 not checked. [2021-12-22 19:29:19,404 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [596558652] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-22 19:29:19,404 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-22 19:29:19,404 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 12, 17] total 30 [2021-12-22 19:29:19,404 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550038084] [2021-12-22 19:29:19,404 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-22 19:29:19,405 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-12-22 19:29:19,405 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 19:29:19,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-12-22 19:29:19,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=215, Invalid=655, Unknown=0, NotChecked=0, Total=870 [2021-12-22 19:29:19,406 INFO L87 Difference]: Start difference. First operand 106 states and 127 transitions. Second operand has 30 states, 30 states have (on average 4.9) internal successors, (147), 30 states have internal predecessors, (147), 17 states have call successors, (27), 1 states have call predecessors, (27), 11 states have return successors, (35), 23 states have call predecessors, (35), 17 states have call successors, (35) [2021-12-22 19:29:19,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 19:29:19,729 INFO L93 Difference]: Finished difference Result 227 states and 277 transitions. [2021-12-22 19:29:19,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-12-22 19:29:19,730 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 4.9) internal successors, (147), 30 states have internal predecessors, (147), 17 states have call successors, (27), 1 states have call predecessors, (27), 11 states have return successors, (35), 23 states have call predecessors, (35), 17 states have call successors, (35) Word has length 345 [2021-12-22 19:29:19,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 19:29:19,732 INFO L225 Difference]: With dead ends: 227 [2021-12-22 19:29:19,732 INFO L226 Difference]: Without dead ends: 127 [2021-12-22 19:29:19,733 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 787 GetRequests, 744 SyntacticMatches, 3 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 513 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=448, Invalid=1274, Unknown=0, NotChecked=0, Total=1722 [2021-12-22 19:29:19,733 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 166 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-22 19:29:19,733 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [168 Valid, 208 Invalid, 605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 500 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-22 19:29:19,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2021-12-22 19:29:19,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 106. [2021-12-22 19:29:19,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 85 states have (on average 1.035294117647059) internal successors, (88), 83 states have internal predecessors, (88), 13 states have call successors, (13), 10 states have call predecessors, (13), 7 states have return successors, (23), 12 states have call predecessors, (23), 12 states have call successors, (23) [2021-12-22 19:29:19,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 124 transitions. [2021-12-22 19:29:19,738 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 124 transitions. Word has length 345 [2021-12-22 19:29:19,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 19:29:19,738 INFO L470 AbstractCegarLoop]: Abstraction has 106 states and 124 transitions. [2021-12-22 19:29:19,738 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 4.9) internal successors, (147), 30 states have internal predecessors, (147), 17 states have call successors, (27), 1 states have call predecessors, (27), 11 states have return successors, (35), 23 states have call predecessors, (35), 17 states have call successors, (35) [2021-12-22 19:29:19,738 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 124 transitions. [2021-12-22 19:29:19,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 497 [2021-12-22 19:29:19,741 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 19:29:19,741 INFO L514 BasicCegarLoop]: trace histogram [51, 50, 41, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 24, 24, 16, 10, 1, 1, 1, 1, 1] [2021-12-22 19:29:19,760 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-12-22 19:29:19,958 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 19:29:19,958 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-22 19:29:19,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:29:19,958 INFO L85 PathProgramCache]: Analyzing trace with hash -561951835, now seen corresponding path program 10 times [2021-12-22 19:29:19,958 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 19:29:19,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560991742] [2021-12-22 19:29:19,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 19:29:19,959 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 19:29:19,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:20,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-22 19:29:20,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:20,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:20,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:20,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:20,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:20,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:20,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:20,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:20,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:20,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:20,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:20,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:20,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:20,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:20,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:20,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-22 19:29:20,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:20,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:20,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:20,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:20,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:20,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-22 19:29:20,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:20,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:20,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:20,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:20,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:20,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:20,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:20,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:20,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:20,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-22 19:29:20,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:20,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:20,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:20,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:20,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:20,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:20,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:20,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:20,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:20,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:20,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:20,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-22 19:29:20,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:20,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:20,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:20,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:20,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:20,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2021-12-22 19:29:20,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:20,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:20,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:20,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:20,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:20,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:20,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:20,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:20,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:20,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:20,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:20,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:20,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:20,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:20,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:20,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-22 19:29:20,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:20,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:20,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:20,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:20,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:20,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-22 19:29:20,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:20,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:20,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:20,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:20,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:20,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:20,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:20,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:20,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:20,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-22 19:29:20,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:20,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:20,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:20,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:20,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:20,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:20,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:20,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:20,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:20,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:20,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:20,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-22 19:29:20,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:20,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:20,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:20,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:20,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:20,405 INFO L134 CoverageAnalysis]: Checked inductivity of 8796 backedges. 1094 proven. 2322 refuted. 0 times theorem prover too weak. 5380 trivial. 0 not checked. [2021-12-22 19:29:20,406 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 19:29:20,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560991742] [2021-12-22 19:29:20,406 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560991742] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 19:29:20,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [701439673] [2021-12-22 19:29:20,406 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-12-22 19:29:20,406 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 19:29:20,406 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:29:20,407 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) [2021-12-22 19:29:20,433 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-12-22 19:29:20,545 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-12-22 19:29:20,545 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-22 19:29:20,547 INFO L263 TraceCheckSpWp]: Trace formula consists of 618 conjuncts, 26 conjunts are in the unsatisfiable core [2021-12-22 19:29:20,553 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 19:29:21,104 INFO L134 CoverageAnalysis]: Checked inductivity of 8796 backedges. 1252 proven. 2649 refuted. 0 times theorem prover too weak. 4895 trivial. 0 not checked. [2021-12-22 19:29:21,104 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-22 19:29:23,144 INFO L134 CoverageAnalysis]: Checked inductivity of 8796 backedges. 1252 proven. 2764 refuted. 0 times theorem prover too weak. 4780 trivial. 0 not checked. [2021-12-22 19:29:23,144 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [701439673] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-22 19:29:23,144 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-22 19:29:23,144 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 17, 27] total 39 [2021-12-22 19:29:23,144 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292595396] [2021-12-22 19:29:23,144 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-22 19:29:23,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2021-12-22 19:29:23,145 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 19:29:23,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2021-12-22 19:29:23,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=358, Invalid=1124, Unknown=0, NotChecked=0, Total=1482 [2021-12-22 19:29:23,146 INFO L87 Difference]: Start difference. First operand 106 states and 124 transitions. Second operand has 39 states, 39 states have (on average 5.102564102564102) internal successors, (199), 39 states have internal predecessors, (199), 33 states have call successors, (37), 1 states have call predecessors, (37), 13 states have return successors, (52), 22 states have call predecessors, (52), 33 states have call successors, (52) [2021-12-22 19:29:23,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 19:29:23,624 INFO L93 Difference]: Finished difference Result 246 states and 314 transitions. [2021-12-22 19:29:23,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-12-22 19:29:23,624 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 5.102564102564102) internal successors, (199), 39 states have internal predecessors, (199), 33 states have call successors, (37), 1 states have call predecessors, (37), 13 states have return successors, (52), 22 states have call predecessors, (52), 33 states have call successors, (52) Word has length 496 [2021-12-22 19:29:23,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 19:29:23,625 INFO L225 Difference]: With dead ends: 246 [2021-12-22 19:29:23,625 INFO L226 Difference]: Without dead ends: 146 [2021-12-22 19:29:23,627 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1135 GetRequests, 1074 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1085 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=931, Invalid=2729, Unknown=0, NotChecked=0, Total=3660 [2021-12-22 19:29:23,627 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 424 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 553 mSolverCounterSat, 263 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 427 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 263 IncrementalHoareTripleChecker+Valid, 553 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-22 19:29:23,627 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [427 Valid, 246 Invalid, 816 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [263 Valid, 553 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-22 19:29:23,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2021-12-22 19:29:23,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 134. [2021-12-22 19:29:23,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 108 states have (on average 1.037037037037037) internal successors, (112), 106 states have internal predecessors, (112), 17 states have call successors, (17), 14 states have call predecessors, (17), 8 states have return successors, (31), 13 states have call predecessors, (31), 16 states have call successors, (31) [2021-12-22 19:29:23,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 160 transitions. [2021-12-22 19:29:23,632 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 160 transitions. Word has length 496 [2021-12-22 19:29:23,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 19:29:23,632 INFO L470 AbstractCegarLoop]: Abstraction has 134 states and 160 transitions. [2021-12-22 19:29:23,632 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 5.102564102564102) internal successors, (199), 39 states have internal predecessors, (199), 33 states have call successors, (37), 1 states have call predecessors, (37), 13 states have return successors, (52), 22 states have call predecessors, (52), 33 states have call successors, (52) [2021-12-22 19:29:23,633 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 160 transitions. [2021-12-22 19:29:23,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 399 [2021-12-22 19:29:23,634 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 19:29:23,634 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] [2021-12-22 19:29:23,653 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-12-22 19:29:23,851 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 19:29:23,851 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-22 19:29:23,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:29:23,852 INFO L85 PathProgramCache]: Analyzing trace with hash -1618302324, now seen corresponding path program 11 times [2021-12-22 19:29:23,852 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 19:29:23,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135400701] [2021-12-22 19:29:23,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 19:29:23,852 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 19:29:23,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:23,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-22 19:29:23,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:23,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:23,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:24,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:24,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:24,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:24,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:24,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:24,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:24,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:24,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:24,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:24,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:24,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:24,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:24,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-22 19:29:24,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:24,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:24,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:24,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:24,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:24,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-22 19:29:24,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:24,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:24,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:24,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:24,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:24,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:24,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:24,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:24,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:24,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-22 19:29:24,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:24,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:24,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:24,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:24,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:24,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:24,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:24,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:24,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:24,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:24,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:24,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-22 19:29:24,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:24,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:24,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:24,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:24,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:24,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2021-12-22 19:29:24,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:24,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:24,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:24,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:24,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:24,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:24,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:24,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:24,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:24,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:24,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:24,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:24,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:24,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-22 19:29:24,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:24,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:24,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:24,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:24,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:24,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-22 19:29:24,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:24,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:24,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:24,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:24,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:24,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:24,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:24,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:24,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:24,281 INFO L134 CoverageAnalysis]: Checked inductivity of 5609 backedges. 820 proven. 1093 refuted. 0 times theorem prover too weak. 3696 trivial. 0 not checked. [2021-12-22 19:29:24,281 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 19:29:24,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135400701] [2021-12-22 19:29:24,281 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135400701] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 19:29:24,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [136696289] [2021-12-22 19:29:24,281 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-12-22 19:29:24,281 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 19:29:24,282 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:29:24,282 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) [2021-12-22 19:29:24,287 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-12-22 19:29:24,483 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 29 check-sat command(s) [2021-12-22 19:29:24,483 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-22 19:29:24,486 INFO L263 TraceCheckSpWp]: Trace formula consists of 761 conjuncts, 81 conjunts are in the unsatisfiable core [2021-12-22 19:29:24,490 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 19:29:25,126 INFO L134 CoverageAnalysis]: Checked inductivity of 5609 backedges. 820 proven. 1093 refuted. 0 times theorem prover too weak. 3696 trivial. 0 not checked. [2021-12-22 19:29:25,126 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-22 19:29:29,267 INFO L134 CoverageAnalysis]: Checked inductivity of 5609 backedges. 1149 proven. 996 refuted. 0 times theorem prover too weak. 3464 trivial. 0 not checked. [2021-12-22 19:29:29,268 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [136696289] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-22 19:29:29,268 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-22 19:29:29,268 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 29] total 40 [2021-12-22 19:29:29,268 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326908939] [2021-12-22 19:29:29,268 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-22 19:29:29,269 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2021-12-22 19:29:29,269 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 19:29:29,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-12-22 19:29:29,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=367, Invalid=1273, Unknown=0, NotChecked=0, Total=1640 [2021-12-22 19:29:29,270 INFO L87 Difference]: Start difference. First operand 134 states and 160 transitions. Second operand has 41 states, 40 states have (on average 2.575) internal successors, (103), 41 states have internal predecessors, (103), 11 states have call successors, (12), 1 states have call predecessors, (12), 11 states have return successors, (28), 28 states have call predecessors, (28), 11 states have call successors, (28) [2021-12-22 19:29:29,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 19:29:29,409 INFO L93 Difference]: Finished difference Result 165 states and 210 transitions. [2021-12-22 19:29:29,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-12-22 19:29:29,410 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 [2021-12-22 19:29:29,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 19:29:29,411 INFO L225 Difference]: With dead ends: 165 [2021-12-22 19:29:29,411 INFO L226 Difference]: Without dead ends: 164 [2021-12-22 19:29:29,412 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 [2021-12-22 19:29:29,412 INFO L933 BasicCegarLoop]: 30 mSDtfsCounter, 42 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-22 19:29:29,412 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 263 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-22 19:29:29,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2021-12-22 19:29:29,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 154. [2021-12-22 19:29:29,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 124 states have (on average 1.032258064516129) internal successors, (128), 121 states have internal predecessors, (128), 19 states have call successors, (19), 14 states have call predecessors, (19), 10 states have return successors, (49), 18 states have call predecessors, (49), 18 states have call successors, (49) [2021-12-22 19:29:29,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 196 transitions. [2021-12-22 19:29:29,420 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 196 transitions. Word has length 398 [2021-12-22 19:29:29,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 19:29:29,420 INFO L470 AbstractCegarLoop]: Abstraction has 154 states and 196 transitions. [2021-12-22 19:29:29,421 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) [2021-12-22 19:29:29,421 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 196 transitions. [2021-12-22 19:29:29,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1224 [2021-12-22 19:29:29,428 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 19:29:29,428 INFO L514 BasicCegarLoop]: trace histogram [126, 123, 102, 63, 63, 63, 63, 62, 62, 62, 62, 62, 61, 61, 60, 60, 39, 24, 1, 1, 1, 1, 1] [2021-12-22 19:29:29,447 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-12-22 19:29:29,628 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 19:29:29,629 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-22 19:29:29,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:29:29,629 INFO L85 PathProgramCache]: Analyzing trace with hash 860846964, now seen corresponding path program 12 times [2021-12-22 19:29:29,629 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 19:29:29,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036596290] [2021-12-22 19:29:29,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 19:29:29,630 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 19:29:29,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:29,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-22 19:29:29,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:29,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:29,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:30,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:30,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:30,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:30,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:30,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:30,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:30,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-22 19:29:30,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:30,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:30,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-22 19:29:30,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:30,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:30,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:30,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:30,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-22 19:29:30,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:30,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:30,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:30,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:30,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:30,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-22 19:29:30,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:30,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:30,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2021-12-22 19:29:30,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:30,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:30,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:30,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:30,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:30,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:30,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-22 19:29:30,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:30,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:30,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-22 19:29:30,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:30,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:30,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:30,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:30,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 422 [2021-12-22 19:29:30,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:30,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:30,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:30,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:30,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:30,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:30,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:30,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:30,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-22 19:29:30,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:30,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:30,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-22 19:29:30,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:30,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:30,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:30,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:30,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-22 19:29:30,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:30,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:30,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:30,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:30,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:30,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-22 19:29:30,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:30,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:30,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2021-12-22 19:29:30,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:30,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:30,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:30,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:30,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:30,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:30,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-22 19:29:30,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:30,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:30,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-22 19:29:30,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:30,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:30,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:30,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:30,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 823 [2021-12-22 19:29:30,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:30,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:30,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:30,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:30,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:30,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:30,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:30,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:30,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-22 19:29:30,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:30,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:30,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-22 19:29:30,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:30,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:30,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:30,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:30,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-22 19:29:30,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:30,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:30,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:30,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:30,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:30,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-22 19:29:30,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:30,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:30,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2021-12-22 19:29:30,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:30,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:30,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:30,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:30,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:30,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:30,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-22 19:29:30,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:30,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:30,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-22 19:29:30,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:30,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:30,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:30,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:30,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:30,673 INFO L134 CoverageAnalysis]: Checked inductivity of 54760 backedges. 2670 proven. 9180 refuted. 0 times theorem prover too weak. 42910 trivial. 0 not checked. [2021-12-22 19:29:30,673 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 19:29:30,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036596290] [2021-12-22 19:29:30,673 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036596290] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 19:29:30,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1998198209] [2021-12-22 19:29:30,673 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-12-22 19:29:30,673 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 19:29:30,673 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:29:30,674 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) [2021-12-22 19:29:30,675 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-12-22 19:29:31,045 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 62 check-sat command(s) [2021-12-22 19:29:31,045 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-22 19:29:31,049 INFO L263 TraceCheckSpWp]: Trace formula consists of 1489 conjuncts, 28 conjunts are in the unsatisfiable core [2021-12-22 19:29:31,073 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 19:29:32,283 INFO L134 CoverageAnalysis]: Checked inductivity of 54760 backedges. 27411 proven. 4518 refuted. 0 times theorem prover too weak. 22831 trivial. 0 not checked. [2021-12-22 19:29:32,283 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-22 19:29:35,249 INFO L134 CoverageAnalysis]: Checked inductivity of 54760 backedges. 3232 proven. 8826 refuted. 0 times theorem prover too weak. 42702 trivial. 0 not checked. [2021-12-22 19:29:35,250 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1998198209] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-22 19:29:35,250 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-22 19:29:35,250 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 19, 28] total 41 [2021-12-22 19:29:35,250 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142012275] [2021-12-22 19:29:35,250 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-22 19:29:35,251 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2021-12-22 19:29:35,251 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 19:29:35,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-12-22 19:29:35,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=383, Invalid=1257, Unknown=0, NotChecked=0, Total=1640 [2021-12-22 19:29:35,253 INFO L87 Difference]: Start difference. First operand 154 states and 196 transitions. Second operand has 41 states, 41 states have (on average 5.560975609756097) internal successors, (228), 41 states have internal predecessors, (228), 35 states have call successors, (44), 4 states have call predecessors, (44), 14 states have return successors, (57), 26 states have call predecessors, (57), 33 states have call successors, (57) [2021-12-22 19:29:35,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 19:29:35,854 INFO L93 Difference]: Finished difference Result 362 states and 504 transitions. [2021-12-22 19:29:35,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-12-22 19:29:35,868 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 41 states have (on average 5.560975609756097) internal successors, (228), 41 states have internal predecessors, (228), 35 states have call successors, (44), 4 states have call predecessors, (44), 14 states have return successors, (57), 26 states have call predecessors, (57), 33 states have call successors, (57) Word has length 1223 [2021-12-22 19:29:35,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 19:29:35,869 INFO L225 Difference]: With dead ends: 362 [2021-12-22 19:29:35,869 INFO L226 Difference]: Without dead ends: 214 [2021-12-22 19:29:35,871 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2750 GetRequests, 2679 SyntacticMatches, 2 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1419 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=1257, Invalid=3713, Unknown=0, NotChecked=0, Total=4970 [2021-12-22 19:29:35,872 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 557 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 544 mSolverCounterSat, 397 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 559 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 941 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 397 IncrementalHoareTripleChecker+Valid, 544 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-22 19:29:35,872 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [559 Valid, 223 Invalid, 941 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [397 Valid, 544 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-22 19:29:35,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2021-12-22 19:29:35,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 189. [2021-12-22 19:29:35,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 153 states have (on average 1.0392156862745099) internal successors, (159), 149 states have internal predecessors, (159), 24 states have call successors, (24), 18 states have call predecessors, (24), 11 states have return successors, (57), 21 states have call predecessors, (57), 23 states have call successors, (57) [2021-12-22 19:29:35,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 240 transitions. [2021-12-22 19:29:35,879 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 240 transitions. Word has length 1223 [2021-12-22 19:29:35,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 19:29:35,879 INFO L470 AbstractCegarLoop]: Abstraction has 189 states and 240 transitions. [2021-12-22 19:29:35,880 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 5.560975609756097) internal successors, (228), 41 states have internal predecessors, (228), 35 states have call successors, (44), 4 states have call predecessors, (44), 14 states have return successors, (57), 26 states have call predecessors, (57), 33 states have call successors, (57) [2021-12-22 19:29:35,880 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 240 transitions. [2021-12-22 19:29:35,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 817 [2021-12-22 19:29:35,884 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 19:29:35,885 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] [2021-12-22 19:29:35,906 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2021-12-22 19:29:36,106 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2021-12-22 19:29:36,107 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-22 19:29:36,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:29:36,107 INFO L85 PathProgramCache]: Analyzing trace with hash 842626985, now seen corresponding path program 13 times [2021-12-22 19:29:36,107 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 19:29:36,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690156884] [2021-12-22 19:29:36,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 19:29:36,108 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 19:29:36,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:36,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-22 19:29:36,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:36,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:36,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:36,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:36,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:36,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:36,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:36,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:36,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:36,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:36,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:36,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:36,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:36,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:36,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:36,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:36,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:36,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:36,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:36,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-22 19:29:36,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:36,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:36,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:36,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:36,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:36,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-22 19:29:36,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:36,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:36,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:36,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:36,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:36,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:36,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:36,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:36,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:36,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-22 19:29:36,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:36,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:36,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:36,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:36,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:36,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:36,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:36,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:36,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:36,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:36,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:36,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-22 19:29:36,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:36,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:36,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:36,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:36,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:36,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2021-12-22 19:29:36,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:36,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:36,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:36,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:36,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:36,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:36,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:36,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:36,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:36,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:36,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:36,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:36,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:36,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-22 19:29:36,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:36,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:36,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:36,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:36,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:36,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-22 19:29:36,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:36,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:36,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:36,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:36,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:36,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:36,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:36,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:36,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:36,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 406 [2021-12-22 19:29:36,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:36,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:36,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:36,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:36,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:36,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:36,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:36,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:36,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:36,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:36,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:36,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:36,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:36,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-22 19:29:36,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:36,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:36,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:36,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:36,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:36,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-22 19:29:36,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:36,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:36,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:36,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:36,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:36,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:36,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:36,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:36,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:36,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 573 [2021-12-22 19:29:36,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:36,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:36,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:36,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:36,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:36,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:36,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:36,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:36,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:36,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:36,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:36,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:36,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:36,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:36,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:36,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-22 19:29:36,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:36,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:36,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:36,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:36,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:36,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-22 19:29:36,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:36,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:36,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:36,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:36,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:36,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:36,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:36,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:36,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:36,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-22 19:29:36,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:36,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:36,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:36,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:36,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:36,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:36,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:36,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:36,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:36,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:36,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:36,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-22 19:29:36,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:36,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:36,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:36,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:36,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:36,890 INFO L134 CoverageAnalysis]: Checked inductivity of 24175 backedges. 2384 proven. 4185 refuted. 0 times theorem prover too weak. 17606 trivial. 0 not checked. [2021-12-22 19:29:36,890 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 19:29:36,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690156884] [2021-12-22 19:29:36,891 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690156884] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 19:29:36,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1421119181] [2021-12-22 19:29:36,891 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-12-22 19:29:36,891 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 19:29:36,891 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:29:36,892 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) [2021-12-22 19:29:36,894 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-12-22 19:29:37,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:37,208 INFO L263 TraceCheckSpWp]: Trace formula consists of 1532 conjuncts, 26 conjunts are in the unsatisfiable core [2021-12-22 19:29:37,215 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 19:29:38,070 INFO L134 CoverageAnalysis]: Checked inductivity of 24175 backedges. 12343 proven. 2667 refuted. 0 times theorem prover too weak. 9165 trivial. 0 not checked. [2021-12-22 19:29:38,070 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-22 19:29:41,068 INFO L134 CoverageAnalysis]: Checked inductivity of 24175 backedges. 2261 proven. 5308 refuted. 0 times theorem prover too weak. 16606 trivial. 0 not checked. [2021-12-22 19:29:41,069 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1421119181] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-22 19:29:41,069 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-22 19:29:41,069 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 17, 27] total 39 [2021-12-22 19:29:41,069 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033686378] [2021-12-22 19:29:41,069 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-22 19:29:41,070 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2021-12-22 19:29:41,070 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 19:29:41,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2021-12-22 19:29:41,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=362, Invalid=1120, Unknown=0, NotChecked=0, Total=1482 [2021-12-22 19:29:41,071 INFO L87 Difference]: Start difference. First operand 189 states and 240 transitions. Second operand has 39 states, 39 states have (on average 5.435897435897436) internal successors, (212), 39 states have internal predecessors, (212), 34 states have call successors, (40), 2 states have call predecessors, (40), 14 states have return successors, (56), 22 states have call predecessors, (56), 34 states have call successors, (56) [2021-12-22 19:29:41,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 19:29:41,628 INFO L93 Difference]: Finished difference Result 379 states and 507 transitions. [2021-12-22 19:29:41,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-12-22 19:29:41,629 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 816 [2021-12-22 19:29:41,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 19:29:41,631 INFO L225 Difference]: With dead ends: 379 [2021-12-22 19:29:41,631 INFO L226 Difference]: Without dead ends: 196 [2021-12-22 19:29:41,632 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1830 GetRequests, 1779 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 796 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=662, Invalid=1888, Unknown=0, NotChecked=0, Total=2550 [2021-12-22 19:29:41,633 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 306 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 810 mSolverCounterSat, 281 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 1091 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 281 IncrementalHoareTripleChecker+Valid, 810 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-22 19:29:41,633 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [308 Valid, 316 Invalid, 1091 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [281 Valid, 810 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-22 19:29:41,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2021-12-22 19:29:41,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 148. [2021-12-22 19:29:41,638 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) [2021-12-22 19:29:41,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 186 transitions. [2021-12-22 19:29:41,639 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 186 transitions. Word has length 816 [2021-12-22 19:29:41,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 19:29:41,639 INFO L470 AbstractCegarLoop]: Abstraction has 148 states and 186 transitions. [2021-12-22 19:29:41,639 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) [2021-12-22 19:29:41,639 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 186 transitions. [2021-12-22 19:29:41,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1595 [2021-12-22 19:29:41,651 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 19:29:41,652 INFO L514 BasicCegarLoop]: trace histogram [165, 159, 134, 84, 84, 84, 84, 80, 80, 80, 80, 80, 79, 79, 78, 78, 50, 31, 1, 1, 1, 1, 1] [2021-12-22 19:29:41,673 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2021-12-22 19:29:41,863 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 19:29:41,863 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-22 19:29:41,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:29:41,864 INFO L85 PathProgramCache]: Analyzing trace with hash -2065795248, now seen corresponding path program 14 times [2021-12-22 19:29:41,864 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 19:29:41,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23860389] [2021-12-22 19:29:41,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 19:29:41,864 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 19:29:41,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:42,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-22 19:29:42,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:42,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:42,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:42,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:42,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:42,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:42,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:42,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:42,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:42,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:42,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:42,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:42,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:42,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:42,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:42,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:42,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:42,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:42,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:42,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-22 19:29:42,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:42,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:42,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:42,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:42,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:42,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-22 19:29:42,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:42,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:42,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:42,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:42,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:42,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:42,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:42,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:42,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:42,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-22 19:29:42,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:42,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:42,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:42,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:42,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:42,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:42,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:42,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:42,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:42,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:42,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:42,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-22 19:29:42,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:42,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:42,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:42,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:42,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:42,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2021-12-22 19:29:42,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:42,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:42,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:42,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:42,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:42,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:42,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:42,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:42,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:42,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:42,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:42,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:42,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:42,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-22 19:29:42,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:42,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:42,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:42,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:42,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:42,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-22 19:29:42,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:42,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:42,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:42,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:42,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:42,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:42,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:42,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:42,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:42,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 406 [2021-12-22 19:29:42,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:42,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:42,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:42,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:42,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:42,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:42,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:42,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:42,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:42,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:42,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:42,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:42,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:42,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:42,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:42,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-22 19:29:42,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:42,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:42,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:42,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:42,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:42,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-22 19:29:42,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:42,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:42,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:42,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:42,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:42,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:42,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:42,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:42,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:42,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-22 19:29:42,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:42,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:42,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:42,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:42,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:42,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:42,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:42,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:42,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:42,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:42,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:42,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-22 19:29:42,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:42,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:42,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:42,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:42,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:42,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 695 [2021-12-22 19:29:42,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:42,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:42,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:43,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:43,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:43,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:43,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:43,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:43,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:43,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:43,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:43,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:43,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:43,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:43,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:43,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:43,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:43,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:43,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:43,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-22 19:29:43,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:43,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:43,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:43,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:43,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:43,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-22 19:29:43,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:43,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:43,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:43,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:43,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:43,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:43,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:43,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:43,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:43,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-22 19:29:43,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:43,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:43,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:43,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:43,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:43,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:43,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:43,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:43,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:43,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:43,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:43,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-22 19:29:43,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:43,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:43,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:43,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:43,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:43,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2021-12-22 19:29:43,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:43,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:43,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:43,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:43,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:43,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:43,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:43,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:43,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:43,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:43,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:43,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:43,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:43,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-22 19:29:43,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:43,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:43,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:43,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:43,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:43,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-22 19:29:43,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:43,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:43,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:43,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:43,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:43,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:43,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:43,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:43,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:43,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 406 [2021-12-22 19:29:43,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:43,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:43,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:43,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:43,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:43,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:43,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:43,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:43,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:43,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:43,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:43,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:43,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:43,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:43,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:43,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-22 19:29:43,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:43,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:43,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:43,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:43,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:43,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-22 19:29:43,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:43,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:43,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:43,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:43,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:43,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:43,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:43,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:43,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:43,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-22 19:29:43,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:43,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:43,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:43,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:43,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:43,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:43,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:43,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:43,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:43,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:43,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:43,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-22 19:29:43,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:43,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:43,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:43,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:43,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:43,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1351 [2021-12-22 19:29:43,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:43,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:43,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:43,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:43,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:43,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:43,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:43,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:43,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:43,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:43,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:43,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:43,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:43,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:43,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:43,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-22 19:29:43,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:43,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:43,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:43,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:43,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:43,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-22 19:29:43,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:43,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:43,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:43,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:43,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:43,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:43,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:43,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:43,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:43,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-22 19:29:43,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:43,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:43,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:43,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:43,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:43,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:43,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:43,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:43,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:43,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:43,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:43,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-22 19:29:43,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:43,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:43,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:43,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:43,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:43,376 INFO L134 CoverageAnalysis]: Checked inductivity of 93356 backedges. 4317 proven. 12808 refuted. 0 times theorem prover too weak. 76231 trivial. 0 not checked. [2021-12-22 19:29:43,377 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 19:29:43,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23860389] [2021-12-22 19:29:43,377 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23860389] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 19:29:43,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2120616948] [2021-12-22 19:29:43,377 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-22 19:29:43,377 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 19:29:43,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:29:43,378 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) [2021-12-22 19:29:43,413 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-12-22 19:29:43,877 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-22 19:29:43,877 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-22 19:29:43,886 INFO L263 TraceCheckSpWp]: Trace formula consists of 2966 conjuncts, 34 conjunts are in the unsatisfiable core [2021-12-22 19:29:43,898 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 19:29:45,519 INFO L134 CoverageAnalysis]: Checked inductivity of 93356 backedges. 28975 proven. 10618 refuted. 0 times theorem prover too weak. 53763 trivial. 0 not checked. [2021-12-22 19:29:45,519 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-22 19:29:49,709 INFO L134 CoverageAnalysis]: Checked inductivity of 93356 backedges. 4835 proven. 13735 refuted. 0 times theorem prover too weak. 74786 trivial. 0 not checked. [2021-12-22 19:29:49,709 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2120616948] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-22 19:29:49,709 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-22 19:29:49,710 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 21, 31] total 45 [2021-12-22 19:29:49,710 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272555410] [2021-12-22 19:29:49,710 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-22 19:29:49,711 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2021-12-22 19:29:49,711 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 19:29:49,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2021-12-22 19:29:49,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=458, Invalid=1522, Unknown=0, NotChecked=0, Total=1980 [2021-12-22 19:29:49,712 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) [2021-12-22 19:29:50,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 19:29:50,265 INFO L93 Difference]: Finished difference Result 357 states and 491 transitions. [2021-12-22 19:29:50,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-12-22 19:29:50,266 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 1594 [2021-12-22 19:29:50,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 19:29:50,275 INFO L225 Difference]: With dead ends: 357 [2021-12-22 19:29:50,275 INFO L226 Difference]: Without dead ends: 215 [2021-12-22 19:29:50,278 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3571 GetRequests, 3494 SyntacticMatches, 2 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1729 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=1534, Invalid=4318, Unknown=0, NotChecked=0, Total=5852 [2021-12-22 19:29:50,278 INFO L933 BasicCegarLoop]: 28 mSDtfsCounter, 429 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 249 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 432 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 249 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-22 19:29:50,279 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [432 Valid, 206 Invalid, 720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [249 Valid, 471 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-22 19:29:50,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2021-12-22 19:29:50,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 190. [2021-12-22 19:29:50,289 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) [2021-12-22 19:29:50,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 247 transitions. [2021-12-22 19:29:50,291 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 247 transitions. Word has length 1594 [2021-12-22 19:29:50,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 19:29:50,293 INFO L470 AbstractCegarLoop]: Abstraction has 190 states and 247 transitions. [2021-12-22 19:29:50,293 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) [2021-12-22 19:29:50,293 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 247 transitions. [2021-12-22 19:29:50,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 915 [2021-12-22 19:29:50,298 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 19:29:50,298 INFO L514 BasicCegarLoop]: trace histogram [94, 92, 76, 47, 47, 47, 47, 46, 46, 46, 46, 46, 46, 46, 45, 45, 29, 18, 1, 1, 1, 1, 1] [2021-12-22 19:29:50,320 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2021-12-22 19:29:50,515 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 19:29:50,515 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-22 19:29:50,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:29:50,516 INFO L85 PathProgramCache]: Analyzing trace with hash -1561361232, now seen corresponding path program 15 times [2021-12-22 19:29:50,516 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 19:29:50,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056817637] [2021-12-22 19:29:50,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 19:29:50,516 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 19:29:50,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:50,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-22 19:29:50,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:50,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:50,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:50,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:50,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:50,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:50,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:50,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:50,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:50,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:50,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:50,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:50,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:50,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:50,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:50,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:50,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:50,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:50,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:50,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-22 19:29:50,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:50,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:50,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:50,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:50,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:50,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-22 19:29:50,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:50,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:50,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:50,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:50,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:50,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:50,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:50,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:50,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:51,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-22 19:29:51,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:51,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:51,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:51,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:51,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:51,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:51,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:51,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:51,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:51,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:51,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:51,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-22 19:29:51,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:51,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:51,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:51,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:51,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:51,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2021-12-22 19:29:51,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:51,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:51,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:51,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:51,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:51,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:51,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:51,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:51,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:51,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:51,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:51,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:51,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:51,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-22 19:29:51,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:51,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:51,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:51,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:51,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:51,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-22 19:29:51,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:51,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:51,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:51,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:51,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:51,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:51,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:51,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:51,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:51,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 406 [2021-12-22 19:29:51,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:51,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:51,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:51,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:51,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:51,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:51,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:51,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:51,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:51,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:51,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:51,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:51,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:51,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:51,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:51,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-22 19:29:51,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:51,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:51,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:51,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:51,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:51,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-22 19:29:51,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:51,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:51,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:51,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:51,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:51,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:51,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:51,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:51,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:51,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-22 19:29:51,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:51,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:51,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:51,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:51,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:51,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:51,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:51,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:51,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:51,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:51,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:51,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-22 19:29:51,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:51,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:51,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:51,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:51,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:51,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 671 [2021-12-22 19:29:51,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:51,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:51,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:51,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:51,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:51,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:51,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:51,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:51,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:51,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:51,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:51,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:51,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:51,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:51,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:51,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-22 19:29:51,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:51,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:51,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:51,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:51,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:51,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-22 19:29:51,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:51,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:51,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:51,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:51,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:51,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:51,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:51,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:51,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:51,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-22 19:29:51,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:51,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:51,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:51,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:51,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:51,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:51,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:51,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:51,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:51,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:51,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:51,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-22 19:29:51,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:51,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:51,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:51,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:51,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:51,348 INFO L134 CoverageAnalysis]: Checked inductivity of 30407 backedges. 3955 proven. 4351 refuted. 0 times theorem prover too weak. 22101 trivial. 0 not checked. [2021-12-22 19:29:51,348 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 19:29:51,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056817637] [2021-12-22 19:29:51,348 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056817637] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 19:29:51,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1579607263] [2021-12-22 19:29:51,348 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-22 19:29:51,349 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 19:29:51,349 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:29:51,350 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) [2021-12-22 19:29:51,351 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2021-12-22 19:29:51,713 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 41 check-sat command(s) [2021-12-22 19:29:51,713 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-22 19:29:51,716 INFO L263 TraceCheckSpWp]: Trace formula consists of 1039 conjuncts, 20 conjunts are in the unsatisfiable core [2021-12-22 19:29:51,722 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 19:29:52,707 INFO L134 CoverageAnalysis]: Checked inductivity of 30407 backedges. 4571 proven. 1474 refuted. 0 times theorem prover too weak. 24362 trivial. 0 not checked. [2021-12-22 19:29:52,707 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-22 19:29:54,877 INFO L134 CoverageAnalysis]: Checked inductivity of 30407 backedges. 4571 proven. 1550 refuted. 0 times theorem prover too weak. 24286 trivial. 0 not checked. [2021-12-22 19:29:54,877 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1579607263] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-22 19:29:54,877 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-22 19:29:54,877 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 14, 21] total 40 [2021-12-22 19:29:54,877 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539621814] [2021-12-22 19:29:54,878 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-22 19:29:54,878 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2021-12-22 19:29:54,878 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 19:29:54,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-12-22 19:29:54,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=378, Invalid=1182, Unknown=0, NotChecked=0, Total=1560 [2021-12-22 19:29:54,879 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) [2021-12-22 19:29:55,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 19:29:55,451 INFO L93 Difference]: Finished difference Result 404 states and 532 transitions. [2021-12-22 19:29:55,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-12-22 19:29:55,452 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 914 [2021-12-22 19:29:55,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 19:29:55,454 INFO L225 Difference]: With dead ends: 404 [2021-12-22 19:29:55,454 INFO L226 Difference]: Without dead ends: 220 [2021-12-22 19:29:55,456 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2054 GetRequests, 1995 SyntacticMatches, 4 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1069 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=773, Invalid=2419, Unknown=0, NotChecked=0, Total=3192 [2021-12-22 19:29:55,456 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 296 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 866 mSolverCounterSat, 212 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 1078 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 212 IncrementalHoareTripleChecker+Valid, 866 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-22 19:29:55,456 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [298 Valid, 341 Invalid, 1078 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [212 Valid, 866 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-22 19:29:55,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2021-12-22 19:29:55,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 188. [2021-12-22 19:29:55,463 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) [2021-12-22 19:29:55,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 233 transitions. [2021-12-22 19:29:55,464 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 233 transitions. Word has length 914 [2021-12-22 19:29:55,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 19:29:55,465 INFO L470 AbstractCegarLoop]: Abstraction has 188 states and 233 transitions. [2021-12-22 19:29:55,465 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) [2021-12-22 19:29:55,465 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 233 transitions. [2021-12-22 19:29:55,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1072 [2021-12-22 19:29:55,471 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 19:29:55,472 INFO L514 BasicCegarLoop]: trace histogram [110, 108, 89, 55, 55, 55, 55, 54, 54, 54, 54, 54, 54, 54, 53, 53, 34, 21, 1, 1, 1, 1, 1] [2021-12-22 19:29:55,493 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2021-12-22 19:29:55,690 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 19:29:55,690 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-22 19:29:55,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:29:55,691 INFO L85 PathProgramCache]: Analyzing trace with hash 1889901600, now seen corresponding path program 16 times [2021-12-22 19:29:55,691 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 19:29:55,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346436707] [2021-12-22 19:29:55,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 19:29:55,691 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 19:29:55,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-22 19:29:56,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:56,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:56,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:56,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:56,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:56,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:56,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:56,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:56,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:56,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-22 19:29:56,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:56,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:56,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-22 19:29:56,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:56,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:56,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:56,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:56,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-22 19:29:56,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:56,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:56,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:56,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:56,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:56,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-22 19:29:56,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:56,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:56,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2021-12-22 19:29:56,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:56,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:56,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:56,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:56,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:56,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:56,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-22 19:29:56,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:56,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:56,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-22 19:29:56,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:56,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:56,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:56,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:56,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 406 [2021-12-22 19:29:56,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:56,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:56,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:56,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:56,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:56,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:56,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:56,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-22 19:29:56,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:56,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:56,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-22 19:29:56,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:56,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:56,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:56,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:56,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-22 19:29:56,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:56,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:56,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:56,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:56,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:56,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-22 19:29:56,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:56,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:56,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 671 [2021-12-22 19:29:56,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:56,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:56,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:56,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:56,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:56,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:56,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:56,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:56,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-22 19:29:56,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:56,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:56,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-22 19:29:56,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:56,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:56,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:56,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:56,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-22 19:29:56,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:56,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:56,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:56,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:56,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:56,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-22 19:29:56,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:56,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:56,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2021-12-22 19:29:56,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:56,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:56,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:56,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:56,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:56,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:56,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-22 19:29:56,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:56,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:56,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-22 19:29:56,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:56,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 19:29:56,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 19:29:56,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 19:29:56,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:29:56,982 INFO L134 CoverageAnalysis]: Checked inductivity of 41881 backedges. 6686 proven. 7802 refuted. 0 times theorem prover too weak. 27393 trivial. 0 not checked. [2021-12-22 19:29:56,982 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 19:29:56,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346436707] [2021-12-22 19:29:56,982 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346436707] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 19:29:56,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [225725676] [2021-12-22 19:29:56,982 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-12-22 19:29:56,982 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 19:29:56,982 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:29:56,983 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-22 19:29:56,984 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2021-12-22 19:29:57,372 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-12-22 19:29:57,372 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-22 19:29:57,383 INFO L263 TraceCheckSpWp]: Trace formula consists of 2003 conjuncts, 217 conjunts are in the unsatisfiable core [2021-12-22 19:29:57,393 INFO L286 TraceCheckSpWp]: Computing forward predicates...