./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-numeric/Fibonacci01-2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/termination-numeric/Fibonacci01-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 14cfbc3a2ba2bfe3a03d4d1ebff24b0baf1851f06dbbd2468b59e09322e4ce16 --- Real Ultimate output --- This is Ultimate 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 22:40:08,048 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 22:40:08,050 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 22:40:08,107 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 22:40:08,108 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 22:40:08,109 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 22:40:08,110 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 22:40:08,111 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 22:40:08,112 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 22:40:08,113 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 22:40:08,114 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 22:40:08,115 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 22:40:08,115 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 22:40:08,116 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 22:40:08,117 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 22:40:08,118 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 22:40:08,119 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 22:40:08,120 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 22:40:08,121 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 22:40:08,123 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 22:40:08,124 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 22:40:08,125 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 22:40:08,126 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 22:40:08,127 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 22:40:08,130 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 22:40:08,130 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 22:40:08,130 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 22:40:08,131 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 22:40:08,132 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 22:40:08,133 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 22:40:08,133 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 22:40:08,134 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 22:40:08,134 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 22:40:08,135 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 22:40:08,136 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 22:40:08,136 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 22:40:08,136 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 22:40:08,137 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 22:40:08,137 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 22:40:08,138 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 22:40:08,138 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 22:40:08,139 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2021-12-14 22:40:08,157 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 22:40:08,158 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 22:40:08,158 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 22:40:08,158 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 22:40:08,159 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-14 22:40:08,159 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-14 22:40:08,159 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 22:40:08,159 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 22:40:08,160 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 22:40:08,160 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 22:40:08,160 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-14 22:40:08,160 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 22:40:08,160 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 22:40:08,161 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-14 22:40:08,161 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-14 22:40:08,161 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-14 22:40:08,161 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-12-14 22:40:08,161 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 22:40:08,161 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 22:40:08,162 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-14 22:40:08,162 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 22:40:08,162 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 22:40:08,162 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-14 22:40:08,162 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 22:40:08,163 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 22:40:08,163 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-14 22:40:08,163 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-14 22:40:08,163 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 22:40:08,163 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-14 22:40:08,163 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-14 22:40:08,164 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 22:40:08,164 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 14cfbc3a2ba2bfe3a03d4d1ebff24b0baf1851f06dbbd2468b59e09322e4ce16 [2021-12-14 22:40:08,376 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 22:40:08,400 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 22:40:08,404 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 22:40:08,405 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 22:40:08,405 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 22:40:08,407 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-numeric/Fibonacci01-2.c [2021-12-14 22:40:08,472 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d21cee789/53713eb3aefa4605b00ebb17d5ebc5a9/FLAGcfcad7665 [2021-12-14 22:40:08,901 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 22:40:08,902 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-numeric/Fibonacci01-2.c [2021-12-14 22:40:08,910 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d21cee789/53713eb3aefa4605b00ebb17d5ebc5a9/FLAGcfcad7665 [2021-12-14 22:40:08,929 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d21cee789/53713eb3aefa4605b00ebb17d5ebc5a9 [2021-12-14 22:40:08,932 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 22:40:08,934 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 22:40:08,938 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 22:40:08,938 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 22:40:08,941 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 22:40:08,942 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:40:08" (1/1) ... [2021-12-14 22:40:08,943 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@731cf6a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:40:08, skipping insertion in model container [2021-12-14 22:40:08,943 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:40:08" (1/1) ... [2021-12-14 22:40:08,949 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 22:40:08,959 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 22:40:09,112 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-numeric/Fibonacci01-2.c[761,774] [2021-12-14 22:40:09,113 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 22:40:09,119 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 22:40:09,132 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-numeric/Fibonacci01-2.c[761,774] [2021-12-14 22:40:09,132 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 22:40:09,143 INFO L208 MainTranslator]: Completed translation [2021-12-14 22:40:09,144 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:40:09 WrapperNode [2021-12-14 22:40:09,144 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 22:40:09,145 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 22:40:09,146 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 22:40:09,146 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 22:40:09,152 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:40:09" (1/1) ... [2021-12-14 22:40:09,159 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:40:09" (1/1) ... [2021-12-14 22:40:09,175 INFO L137 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 26 [2021-12-14 22:40:09,175 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 22:40:09,176 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 22:40:09,176 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 22:40:09,176 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 22:40:09,183 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:40:09" (1/1) ... [2021-12-14 22:40:09,183 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:40:09" (1/1) ... [2021-12-14 22:40:09,193 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:40:09" (1/1) ... [2021-12-14 22:40:09,194 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:40:09" (1/1) ... [2021-12-14 22:40:09,200 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:40:09" (1/1) ... [2021-12-14 22:40:09,202 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:40:09" (1/1) ... [2021-12-14 22:40:09,203 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:40:09" (1/1) ... [2021-12-14 22:40:09,206 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 22:40:09,208 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 22:40:09,208 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 22:40:09,208 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 22:40:09,209 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:40:09" (1/1) ... [2021-12-14 22:40:09,217 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 22:40:09,226 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 22:40:09,239 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-14 22:40:09,242 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-14 22:40:09,270 INFO L130 BoogieDeclarations]: Found specification of procedure fibonacci [2021-12-14 22:40:09,271 INFO L138 BoogieDeclarations]: Found implementation of procedure fibonacci [2021-12-14 22:40:09,271 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 22:40:09,271 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 22:40:09,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 22:40:09,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 22:40:09,318 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 22:40:09,320 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 22:40:09,466 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 22:40:09,472 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 22:40:09,474 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-14 22:40:09,479 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:40:09 BoogieIcfgContainer [2021-12-14 22:40:09,480 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 22:40:09,482 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-14 22:40:09,482 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-14 22:40:09,486 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-14 22:40:09,486 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 10:40:08" (1/3) ... [2021-12-14 22:40:09,487 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28b70cbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 10:40:09, skipping insertion in model container [2021-12-14 22:40:09,487 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:40:09" (2/3) ... [2021-12-14 22:40:09,488 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28b70cbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 10:40:09, skipping insertion in model container [2021-12-14 22:40:09,488 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:40:09" (3/3) ... [2021-12-14 22:40:09,489 INFO L111 eAbstractionObserver]: Analyzing ICFG Fibonacci01-2.c [2021-12-14 22:40:09,494 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-14 22:40:09,495 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-12-14 22:40:09,549 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-14 22:40:09,559 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-14 22:40:09,560 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-12-14 22:40:09,577 INFO L276 IsEmpty]: Start isEmpty. Operand has 31 states, 20 states have (on average 1.5) internal successors, (30), 26 states have internal predecessors, (30), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-14 22:40:09,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-12-14 22:40:09,592 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:40:09,593 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 22:40:09,594 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-14 22:40:09,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:40:09,599 INFO L85 PathProgramCache]: Analyzing trace with hash 627182713, now seen corresponding path program 1 times [2021-12-14 22:40:09,606 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:40:09,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635616714] [2021-12-14 22:40:09,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:40:09,608 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:40:09,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:09,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 22:40:09,817 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:40:09,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635616714] [2021-12-14 22:40:09,818 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635616714] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 22:40:09,818 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 22:40:09,819 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 22:40:09,820 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911361599] [2021-12-14 22:40:09,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 22:40:09,824 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 22:40:09,824 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:40:09,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 22:40:09,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-14 22:40:09,861 INFO L87 Difference]: Start difference. First operand has 31 states, 20 states have (on average 1.5) internal successors, (30), 26 states have internal predecessors, (30), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 22:40:09,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:40:09,976 INFO L93 Difference]: Finished difference Result 34 states and 38 transitions. [2021-12-14 22:40:09,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 22:40:09,979 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-12-14 22:40:09,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:40:09,996 INFO L225 Difference]: With dead ends: 34 [2021-12-14 22:40:09,997 INFO L226 Difference]: Without dead ends: 23 [2021-12-14 22:40:09,999 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-14 22:40:10,005 INFO L933 BasicCegarLoop]: 17 mSDtfsCounter, 39 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-14 22:40:10,007 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 41 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-14 22:40:10,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2021-12-14 22:40:10,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2021-12-14 22:40:10,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 15 states have (on average 1.4) internal successors, (21), 19 states have internal predecessors, (21), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-14 22:40:10,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2021-12-14 22:40:10,045 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 8 [2021-12-14 22:40:10,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:40:10,047 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2021-12-14 22:40:10,047 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 22:40:10,047 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2021-12-14 22:40:10,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-12-14 22:40:10,048 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:40:10,049 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 22:40:10,049 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-14 22:40:10,050 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-14 22:40:10,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:40:10,051 INFO L85 PathProgramCache]: Analyzing trace with hash -2032172335, now seen corresponding path program 1 times [2021-12-14 22:40:10,051 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:40:10,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66644563] [2021-12-14 22:40:10,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:40:10,052 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:40:10,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:10,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 22:40:10,107 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:40:10,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66644563] [2021-12-14 22:40:10,107 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66644563] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 22:40:10,108 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 22:40:10,108 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-14 22:40:10,108 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394985745] [2021-12-14 22:40:10,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 22:40:10,109 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 22:40:10,110 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:40:10,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 22:40:10,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 22:40:10,112 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 22:40:10,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:40:10,130 INFO L93 Difference]: Finished difference Result 25 states and 29 transitions. [2021-12-14 22:40:10,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 22:40:10,131 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-12-14 22:40:10,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:40:10,132 INFO L225 Difference]: With dead ends: 25 [2021-12-14 22:40:10,132 INFO L226 Difference]: Without dead ends: 23 [2021-12-14 22:40:10,136 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 22:40:10,139 INFO L933 BasicCegarLoop]: 21 mSDtfsCounter, 11 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 22:40:10,139 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 28 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 22:40:10,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2021-12-14 22:40:10,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 21. [2021-12-14 22:40:10,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 17 states have internal predecessors, (19), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-14 22:40:10,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2021-12-14 22:40:10,153 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 9 [2021-12-14 22:40:10,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:40:10,154 INFO L470 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2021-12-14 22:40:10,154 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 22:40:10,154 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2021-12-14 22:40:10,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-12-14 22:40:10,155 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:40:10,156 INFO L514 BasicCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 22:40:10,157 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-14 22:40:10,160 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-14 22:40:10,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:40:10,161 INFO L85 PathProgramCache]: Analyzing trace with hash 1173651673, now seen corresponding path program 1 times [2021-12-14 22:40:10,162 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:40:10,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329487330] [2021-12-14 22:40:10,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:40:10,163 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:40:10,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:10,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-14 22:40:10,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:10,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-14 22:40:10,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:10,315 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-14 22:40:10,316 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:40:10,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329487330] [2021-12-14 22:40:10,317 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329487330] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 22:40:10,317 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 22:40:10,317 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 22:40:10,318 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286206374] [2021-12-14 22:40:10,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 22:40:10,318 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 22:40:10,319 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:40:10,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 22:40:10,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-14 22:40:10,320 INFO L87 Difference]: Start difference. First operand 21 states and 24 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-14 22:40:10,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:40:10,369 INFO L93 Difference]: Finished difference Result 37 states and 43 transitions. [2021-12-14 22:40:10,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 22:40:10,369 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 30 [2021-12-14 22:40:10,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:40:10,372 INFO L225 Difference]: With dead ends: 37 [2021-12-14 22:40:10,372 INFO L226 Difference]: Without dead ends: 35 [2021-12-14 22:40:10,373 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-14 22:40:10,374 INFO L933 BasicCegarLoop]: 19 mSDtfsCounter, 7 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 22:40:10,377 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 57 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 22:40:10,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2021-12-14 22:40:10,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 30. [2021-12-14 22:40:10,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 24 states have internal predecessors, (26), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2021-12-14 22:40:10,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 36 transitions. [2021-12-14 22:40:10,389 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 36 transitions. Word has length 30 [2021-12-14 22:40:10,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:40:10,390 INFO L470 AbstractCegarLoop]: Abstraction has 30 states and 36 transitions. [2021-12-14 22:40:10,390 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-14 22:40:10,390 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 36 transitions. [2021-12-14 22:40:10,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-12-14 22:40:10,392 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:40:10,393 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 22:40:10,393 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-14 22:40:10,393 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-14 22:40:10,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:40:10,394 INFO L85 PathProgramCache]: Analyzing trace with hash 2034782143, now seen corresponding path program 1 times [2021-12-14 22:40:10,394 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:40:10,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167089885] [2021-12-14 22:40:10,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:40:10,395 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:40:10,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:10,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-14 22:40:10,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:10,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-14 22:40:10,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:10,483 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-14 22:40:10,483 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:40:10,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167089885] [2021-12-14 22:40:10,484 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167089885] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 22:40:10,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [396432859] [2021-12-14 22:40:10,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:40:10,484 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:40:10,485 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 22:40:10,487 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 22:40:10,525 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-14 22:40:10,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:10,538 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-14 22:40:10,543 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 22:40:10,714 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-12-14 22:40:10,714 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 22:40:10,894 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-12-14 22:40:10,894 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [396432859] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 22:40:10,894 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 22:40:10,895 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7, 7] total 15 [2021-12-14 22:40:10,895 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511929220] [2021-12-14 22:40:10,895 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 22:40:10,895 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-12-14 22:40:10,896 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:40:10,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-12-14 22:40:10,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2021-12-14 22:40:10,897 INFO L87 Difference]: Start difference. First operand 30 states and 36 transitions. Second operand has 15 states, 15 states have (on average 2.466666666666667) internal successors, (37), 15 states have internal predecessors, (37), 4 states have call successors, (5), 1 states have call predecessors, (5), 5 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2021-12-14 22:40:11,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:40:11,170 INFO L93 Difference]: Finished difference Result 91 states and 129 transitions. [2021-12-14 22:40:11,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-14 22:40:11,171 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.466666666666667) internal successors, (37), 15 states have internal predecessors, (37), 4 states have call successors, (5), 1 states have call predecessors, (5), 5 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) Word has length 31 [2021-12-14 22:40:11,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:40:11,173 INFO L225 Difference]: With dead ends: 91 [2021-12-14 22:40:11,173 INFO L226 Difference]: Without dead ends: 65 [2021-12-14 22:40:11,175 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=126, Invalid=380, Unknown=0, NotChecked=0, Total=506 [2021-12-14 22:40:11,176 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 116 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-14 22:40:11,176 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 93 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-14 22:40:11,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2021-12-14 22:40:11,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 53. [2021-12-14 22:40:11,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 39 states have (on average 1.1025641025641026) internal successors, (43), 42 states have internal predecessors, (43), 7 states have call successors, (7), 2 states have call predecessors, (7), 5 states have return successors, (18), 8 states have call predecessors, (18), 6 states have call successors, (18) [2021-12-14 22:40:11,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 68 transitions. [2021-12-14 22:40:11,186 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 68 transitions. Word has length 31 [2021-12-14 22:40:11,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:40:11,187 INFO L470 AbstractCegarLoop]: Abstraction has 53 states and 68 transitions. [2021-12-14 22:40:11,187 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.466666666666667) internal successors, (37), 15 states have internal predecessors, (37), 4 states have call successors, (5), 1 states have call predecessors, (5), 5 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2021-12-14 22:40:11,187 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 68 transitions. [2021-12-14 22:40:11,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-12-14 22:40:11,188 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:40:11,188 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 22:40:11,213 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-14 22:40:11,410 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:40:11,411 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-14 22:40:11,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:40:11,411 INFO L85 PathProgramCache]: Analyzing trace with hash -603092359, now seen corresponding path program 2 times [2021-12-14 22:40:11,411 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:40:11,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413043379] [2021-12-14 22:40:11,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:40:11,412 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:40:11,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:11,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-14 22:40:11,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:11,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 22:40:11,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:11,495 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-12-14 22:40:11,495 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:40:11,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413043379] [2021-12-14 22:40:11,495 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413043379] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 22:40:11,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1979228025] [2021-12-14 22:40:11,500 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-14 22:40:11,500 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:40:11,500 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 22:40:11,501 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 22:40:11,510 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-14 22:40:11,538 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-14 22:40:11,538 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-14 22:40:11,539 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-14 22:40:11,540 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 22:40:11,624 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-12-14 22:40:11,624 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-14 22:40:11,624 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1979228025] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 22:40:11,624 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-14 22:40:11,625 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2021-12-14 22:40:11,625 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489272843] [2021-12-14 22:40:11,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 22:40:11,625 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 22:40:11,626 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:40:11,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 22:40:11,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-12-14 22:40:11,626 INFO L87 Difference]: Start difference. First operand 53 states and 68 transitions. Second operand has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-14 22:40:11,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:40:11,645 INFO L93 Difference]: Finished difference Result 61 states and 76 transitions. [2021-12-14 22:40:11,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 22:40:11,645 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 25 [2021-12-14 22:40:11,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:40:11,646 INFO L225 Difference]: With dead ends: 61 [2021-12-14 22:40:11,647 INFO L226 Difference]: Without dead ends: 60 [2021-12-14 22:40:11,647 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-12-14 22:40:11,648 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 9 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 22:40:11,648 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 51 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 22:40:11,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2021-12-14 22:40:11,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 55. [2021-12-14 22:40:11,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 41 states have (on average 1.0975609756097562) internal successors, (45), 43 states have internal predecessors, (45), 7 states have call successors, (7), 2 states have call predecessors, (7), 5 states have return successors, (18), 9 states have call predecessors, (18), 6 states have call successors, (18) [2021-12-14 22:40:11,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 70 transitions. [2021-12-14 22:40:11,656 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 70 transitions. Word has length 25 [2021-12-14 22:40:11,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:40:11,657 INFO L470 AbstractCegarLoop]: Abstraction has 55 states and 70 transitions. [2021-12-14 22:40:11,657 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-14 22:40:11,657 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 70 transitions. [2021-12-14 22:40:11,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-12-14 22:40:11,658 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:40:11,658 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 22:40:11,679 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-14 22:40:11,871 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:40:11,872 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting fibonacciErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-14 22:40:11,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:40:11,872 INFO L85 PathProgramCache]: Analyzing trace with hash -736921595, now seen corresponding path program 1 times [2021-12-14 22:40:11,872 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:40:11,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852557477] [2021-12-14 22:40:11,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:40:11,873 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:40:11,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:11,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-14 22:40:11,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:11,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-14 22:40:11,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:11,967 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-14 22:40:11,967 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:40:11,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852557477] [2021-12-14 22:40:11,967 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852557477] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 22:40:11,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1689527605] [2021-12-14 22:40:11,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:40:11,968 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:40:11,968 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 22:40:11,978 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 22:40:12,005 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-14 22:40:12,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:12,062 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-14 22:40:12,064 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 22:40:12,150 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-14 22:40:12,150 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 22:40:12,239 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-14 22:40:12,239 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1689527605] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 22:40:12,240 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 22:40:12,240 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 11 [2021-12-14 22:40:12,240 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688010943] [2021-12-14 22:40:12,240 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 22:40:12,241 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-14 22:40:12,241 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:40:12,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-14 22:40:12,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2021-12-14 22:40:12,242 INFO L87 Difference]: Start difference. First operand 55 states and 70 transitions. Second operand has 12 states, 11 states have (on average 3.272727272727273) internal successors, (36), 12 states have internal predecessors, (36), 4 states have call successors, (5), 1 states have call predecessors, (5), 5 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2021-12-14 22:40:12,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:40:12,326 INFO L93 Difference]: Finished difference Result 70 states and 94 transitions. [2021-12-14 22:40:12,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-14 22:40:12,327 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.272727272727273) internal successors, (36), 12 states have internal predecessors, (36), 4 states have call successors, (5), 1 states have call predecessors, (5), 5 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 32 [2021-12-14 22:40:12,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:40:12,328 INFO L225 Difference]: With dead ends: 70 [2021-12-14 22:40:12,328 INFO L226 Difference]: Without dead ends: 69 [2021-12-14 22:40:12,329 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2021-12-14 22:40:12,330 INFO L933 BasicCegarLoop]: 28 mSDtfsCounter, 16 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-14 22:40:12,330 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 142 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-14 22:40:12,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2021-12-14 22:40:12,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 67. [2021-12-14 22:40:12,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 51 states have (on average 1.0980392156862746) internal successors, (56), 52 states have internal predecessors, (56), 8 states have call successors, (8), 2 states have call predecessors, (8), 6 states have return successors, (27), 12 states have call predecessors, (27), 7 states have call successors, (27) [2021-12-14 22:40:12,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 91 transitions. [2021-12-14 22:40:12,340 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 91 transitions. Word has length 32 [2021-12-14 22:40:12,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:40:12,340 INFO L470 AbstractCegarLoop]: Abstraction has 67 states and 91 transitions. [2021-12-14 22:40:12,341 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.272727272727273) internal successors, (36), 12 states have internal predecessors, (36), 4 states have call successors, (5), 1 states have call predecessors, (5), 5 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2021-12-14 22:40:12,341 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 91 transitions. [2021-12-14 22:40:12,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-12-14 22:40:12,342 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:40:12,342 INFO L514 BasicCegarLoop]: trace histogram [6, 5, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 22:40:12,361 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-14 22:40:12,555 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:40:12,556 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-14 22:40:12,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:40:12,556 INFO L85 PathProgramCache]: Analyzing trace with hash 1336761272, now seen corresponding path program 1 times [2021-12-14 22:40:12,556 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:40:12,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76014712] [2021-12-14 22:40:12,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:40:12,557 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:40:12,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:12,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-14 22:40:12,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:12,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:12,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:12,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:12,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:12,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-14 22:40:12,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:12,654 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-12-14 22:40:12,654 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:40:12,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76014712] [2021-12-14 22:40:12,654 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76014712] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 22:40:12,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1748400601] [2021-12-14 22:40:12,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:40:12,655 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:40:12,655 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 22:40:12,656 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 22:40:12,689 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-14 22:40:12,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:12,706 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-14 22:40:12,708 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 22:40:12,816 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2021-12-14 22:40:12,816 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 22:40:13,032 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-12-14 22:40:13,033 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1748400601] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 22:40:13,033 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 22:40:13,033 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 7] total 13 [2021-12-14 22:40:13,033 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111694368] [2021-12-14 22:40:13,034 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 22:40:13,034 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-12-14 22:40:13,034 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:40:13,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-12-14 22:40:13,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2021-12-14 22:40:13,035 INFO L87 Difference]: Start difference. First operand 67 states and 91 transitions. Second operand has 14 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 14 states have internal predecessors, (37), 3 states have call successors, (4), 1 states have call predecessors, (4), 4 states have return successors, (8), 8 states have call predecessors, (8), 3 states have call successors, (8) [2021-12-14 22:40:13,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:40:13,175 INFO L93 Difference]: Finished difference Result 138 states and 205 transitions. [2021-12-14 22:40:13,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-12-14 22:40:13,176 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 14 states have internal predecessors, (37), 3 states have call successors, (4), 1 states have call predecessors, (4), 4 states have return successors, (8), 8 states have call predecessors, (8), 3 states have call successors, (8) Word has length 51 [2021-12-14 22:40:13,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:40:13,179 INFO L225 Difference]: With dead ends: 138 [2021-12-14 22:40:13,179 INFO L226 Difference]: Without dead ends: 137 [2021-12-14 22:40:13,179 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-14 22:40:13,180 INFO L933 BasicCegarLoop]: 25 mSDtfsCounter, 33 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-14 22:40:13,180 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 107 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-14 22:40:13,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2021-12-14 22:40:13,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 99. [2021-12-14 22:40:13,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 77 states have (on average 1.077922077922078) internal successors, (83), 76 states have internal predecessors, (83), 11 states have call successors, (11), 2 states have call predecessors, (11), 9 states have return successors, (66), 20 states have call predecessors, (66), 10 states have call successors, (66) [2021-12-14 22:40:13,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 160 transitions. [2021-12-14 22:40:13,200 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 160 transitions. Word has length 51 [2021-12-14 22:40:13,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:40:13,200 INFO L470 AbstractCegarLoop]: Abstraction has 99 states and 160 transitions. [2021-12-14 22:40:13,200 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 14 states have internal predecessors, (37), 3 states have call successors, (4), 1 states have call predecessors, (4), 4 states have return successors, (8), 8 states have call predecessors, (8), 3 states have call successors, (8) [2021-12-14 22:40:13,201 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 160 transitions. [2021-12-14 22:40:13,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-12-14 22:40:13,203 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:40:13,203 INFO L514 BasicCegarLoop]: trace histogram [8, 6, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1] [2021-12-14 22:40:13,221 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-12-14 22:40:13,411 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:40:13,412 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting fibonacciErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-14 22:40:13,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:40:13,412 INFO L85 PathProgramCache]: Analyzing trace with hash -1034679801, now seen corresponding path program 1 times [2021-12-14 22:40:13,412 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:40:13,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466641574] [2021-12-14 22:40:13,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:40:13,413 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:40:13,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:13,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-14 22:40:13,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:13,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:13,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:13,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:13,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:13,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-14 22:40:13,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:13,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 22:40:13,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:13,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-14 22:40:13,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:13,504 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2021-12-14 22:40:13,504 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:40:13,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466641574] [2021-12-14 22:40:13,504 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466641574] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 22:40:13,505 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 22:40:13,505 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 22:40:13,505 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075577778] [2021-12-14 22:40:13,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 22:40:13,505 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 22:40:13,505 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:40:13,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 22:40:13,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-14 22:40:13,506 INFO L87 Difference]: Start difference. First operand 99 states and 160 transitions. Second operand has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-14 22:40:13,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:40:13,529 INFO L93 Difference]: Finished difference Result 112 states and 174 transitions. [2021-12-14 22:40:13,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 22:40:13,530 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 70 [2021-12-14 22:40:13,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:40:13,532 INFO L225 Difference]: With dead ends: 112 [2021-12-14 22:40:13,532 INFO L226 Difference]: Without dead ends: 111 [2021-12-14 22:40:13,532 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-14 22:40:13,533 INFO L933 BasicCegarLoop]: 23 mSDtfsCounter, 5 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 22:40:13,533 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 61 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 22:40:13,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2021-12-14 22:40:13,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 99. [2021-12-14 22:40:13,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 77 states have (on average 1.077922077922078) internal successors, (83), 76 states have internal predecessors, (83), 11 states have call successors, (11), 2 states have call predecessors, (11), 9 states have return successors, (66), 20 states have call predecessors, (66), 10 states have call successors, (66) [2021-12-14 22:40:13,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 160 transitions. [2021-12-14 22:40:13,548 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 160 transitions. Word has length 70 [2021-12-14 22:40:13,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:40:13,549 INFO L470 AbstractCegarLoop]: Abstraction has 99 states and 160 transitions. [2021-12-14 22:40:13,549 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-14 22:40:13,549 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 160 transitions. [2021-12-14 22:40:13,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-12-14 22:40:13,552 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:40:13,552 INFO L514 BasicCegarLoop]: trace histogram [11, 9, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1] [2021-12-14 22:40:13,552 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-14 22:40:13,552 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting fibonacciErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-14 22:40:13,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:40:13,553 INFO L85 PathProgramCache]: Analyzing trace with hash 773706717, now seen corresponding path program 2 times [2021-12-14 22:40:13,553 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:40:13,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105429698] [2021-12-14 22:40:13,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:40:13,553 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:40:13,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:13,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-14 22:40:13,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:13,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:13,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:13,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:13,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:13,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-14 22:40:13,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:13,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:13,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:13,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:13,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:13,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:13,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:13,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:40:13,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:13,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-14 22:40:13,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:13,678 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2021-12-14 22:40:13,679 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:40:13,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105429698] [2021-12-14 22:40:13,679 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105429698] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 22:40:13,679 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 22:40:13,679 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 22:40:13,679 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692860843] [2021-12-14 22:40:13,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 22:40:13,680 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 22:40:13,680 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:40:13,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 22:40:13,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-14 22:40:13,682 INFO L87 Difference]: Start difference. First operand 99 states and 160 transitions. Second operand has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-14 22:40:13,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:40:13,707 INFO L93 Difference]: Finished difference Result 112 states and 174 transitions. [2021-12-14 22:40:13,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 22:40:13,708 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 99 [2021-12-14 22:40:13,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:40:13,717 INFO L225 Difference]: With dead ends: 112 [2021-12-14 22:40:13,718 INFO L226 Difference]: Without dead ends: 111 [2021-12-14 22:40:13,719 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-14 22:40:13,721 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 6 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 22:40:13,721 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 51 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 22:40:13,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2021-12-14 22:40:13,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 99. [2021-12-14 22:40:13,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 77 states have (on average 1.077922077922078) internal successors, (83), 76 states have internal predecessors, (83), 11 states have call successors, (11), 2 states have call predecessors, (11), 9 states have return successors, (66), 20 states have call predecessors, (66), 10 states have call successors, (66) [2021-12-14 22:40:13,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 160 transitions. [2021-12-14 22:40:13,742 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 160 transitions. Word has length 99 [2021-12-14 22:40:13,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:40:13,743 INFO L470 AbstractCegarLoop]: Abstraction has 99 states and 160 transitions. [2021-12-14 22:40:13,744 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-14 22:40:13,744 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 160 transitions. [2021-12-14 22:40:13,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-12-14 22:40:13,751 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:40:13,751 INFO L514 BasicCegarLoop]: trace histogram [13, 12, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 3, 1, 1, 1, 1, 1] [2021-12-14 22:40:13,751 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-14 22:40:13,751 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-14 22:40:13,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:40:13,752 INFO L85 PathProgramCache]: Analyzing trace with hash 489976848, now seen corresponding path program 2 times [2021-12-14 22:40:13,752 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:40:13,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442280579] [2021-12-14 22:40:13,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:40:13,753 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:40:13,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:13,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-14 22:40:13,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:13,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:13,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:13,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:13,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:13,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-14 22:40:13,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:13,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:13,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:13,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:13,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:13,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:13,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:13,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:40:13,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:13,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:13,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:13,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:13,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:13,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:13,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:13,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:40:13,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:13,946 INFO L134 CoverageAnalysis]: Checked inductivity of 478 backedges. 61 proven. 158 refuted. 0 times theorem prover too weak. 259 trivial. 0 not checked. [2021-12-14 22:40:13,947 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:40:13,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442280579] [2021-12-14 22:40:13,947 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442280579] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 22:40:13,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1076849026] [2021-12-14 22:40:13,947 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-14 22:40:13,947 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:40:13,947 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 22:40:13,948 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 22:40:13,949 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-14 22:40:14,000 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-14 22:40:14,000 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-14 22:40:14,001 INFO L263 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-14 22:40:14,004 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 22:40:14,209 INFO L134 CoverageAnalysis]: Checked inductivity of 478 backedges. 68 proven. 206 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2021-12-14 22:40:14,210 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 22:40:14,684 INFO L134 CoverageAnalysis]: Checked inductivity of 478 backedges. 68 proven. 209 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2021-12-14 22:40:14,685 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1076849026] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 22:40:14,685 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 22:40:14,685 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 11] total 17 [2021-12-14 22:40:14,685 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296583250] [2021-12-14 22:40:14,685 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 22:40:14,686 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-12-14 22:40:14,686 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:40:14,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-12-14 22:40:14,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=196, Unknown=0, NotChecked=0, Total=272 [2021-12-14 22:40:14,687 INFO L87 Difference]: Start difference. First operand 99 states and 160 transitions. Second operand has 17 states, 17 states have (on average 5.294117647058823) internal successors, (90), 17 states have internal predecessors, (90), 12 states have call successors, (16), 1 states have call predecessors, (16), 5 states have return successors, (16), 8 states have call predecessors, (16), 12 states have call successors, (16) [2021-12-14 22:40:14,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:40:14,820 INFO L93 Difference]: Finished difference Result 178 states and 303 transitions. [2021-12-14 22:40:14,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-14 22:40:14,821 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.294117647058823) internal successors, (90), 17 states have internal predecessors, (90), 12 states have call successors, (16), 1 states have call predecessors, (16), 5 states have return successors, (16), 8 states have call predecessors, (16), 12 states have call successors, (16) Word has length 123 [2021-12-14 22:40:14,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:40:14,823 INFO L225 Difference]: With dead ends: 178 [2021-12-14 22:40:14,823 INFO L226 Difference]: Without dead ends: 83 [2021-12-14 22:40:14,825 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 261 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=284, Unknown=0, NotChecked=0, Total=420 [2021-12-14 22:40:14,825 INFO L933 BasicCegarLoop]: 16 mSDtfsCounter, 187 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-14 22:40:14,826 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [190 Valid, 59 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-14 22:40:14,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2021-12-14 22:40:14,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 70. [2021-12-14 22:40:14,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 55 states have (on average 1.1090909090909091) internal successors, (61), 53 states have internal predecessors, (61), 7 states have call successors, (7), 4 states have call predecessors, (7), 6 states have return successors, (26), 12 states have call predecessors, (26), 6 states have call successors, (26) [2021-12-14 22:40:14,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 94 transitions. [2021-12-14 22:40:14,841 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 94 transitions. Word has length 123 [2021-12-14 22:40:14,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:40:14,841 INFO L470 AbstractCegarLoop]: Abstraction has 70 states and 94 transitions. [2021-12-14 22:40:14,842 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.294117647058823) internal successors, (90), 17 states have internal predecessors, (90), 12 states have call successors, (16), 1 states have call predecessors, (16), 5 states have return successors, (16), 8 states have call predecessors, (16), 12 states have call successors, (16) [2021-12-14 22:40:14,842 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 94 transitions. [2021-12-14 22:40:14,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-12-14 22:40:14,847 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:40:14,847 INFO L514 BasicCegarLoop]: trace histogram [13, 12, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 3, 1, 1, 1, 1, 1] [2021-12-14 22:40:14,878 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-12-14 22:40:15,068 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-12-14 22:40:15,069 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-14 22:40:15,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:40:15,069 INFO L85 PathProgramCache]: Analyzing trace with hash -720593886, now seen corresponding path program 3 times [2021-12-14 22:40:15,069 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:40:15,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715254884] [2021-12-14 22:40:15,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:40:15,069 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:40:15,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:15,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-14 22:40:15,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:15,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:15,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:15,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:15,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:15,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:15,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:15,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:40:15,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:15,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-14 22:40:15,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:15,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:15,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:15,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:15,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:15,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:15,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:15,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:15,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:15,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:40:15,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:15,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 22:40:15,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:15,189 INFO L134 CoverageAnalysis]: Checked inductivity of 478 backedges. 49 proven. 134 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2021-12-14 22:40:15,189 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:40:15,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715254884] [2021-12-14 22:40:15,189 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715254884] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 22:40:15,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1005655315] [2021-12-14 22:40:15,189 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-14 22:40:15,189 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:40:15,190 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 22:40:15,191 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 22:40:15,222 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-14 22:40:15,244 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2021-12-14 22:40:15,245 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-14 22:40:15,246 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-14 22:40:15,250 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 22:40:15,491 INFO L134 CoverageAnalysis]: Checked inductivity of 478 backedges. 191 proven. 21 refuted. 0 times theorem prover too weak. 266 trivial. 0 not checked. [2021-12-14 22:40:15,492 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 22:40:15,920 INFO L134 CoverageAnalysis]: Checked inductivity of 478 backedges. 191 proven. 22 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2021-12-14 22:40:15,920 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1005655315] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 22:40:15,920 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 22:40:15,920 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 9] total 17 [2021-12-14 22:40:15,920 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395646953] [2021-12-14 22:40:15,920 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 22:40:15,921 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-12-14 22:40:15,921 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:40:15,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-12-14 22:40:15,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2021-12-14 22:40:15,921 INFO L87 Difference]: Start difference. First operand 70 states and 94 transitions. Second operand has 17 states, 17 states have (on average 4.529411764705882) internal successors, (77), 17 states have internal predecessors, (77), 7 states have call successors, (12), 1 states have call predecessors, (12), 7 states have return successors, (15), 9 states have call predecessors, (15), 7 states have call successors, (15) [2021-12-14 22:40:16,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:40:16,048 INFO L93 Difference]: Finished difference Result 125 states and 175 transitions. [2021-12-14 22:40:16,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-14 22:40:16,049 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 4.529411764705882) internal successors, (77), 17 states have internal predecessors, (77), 7 states have call successors, (12), 1 states have call predecessors, (12), 7 states have return successors, (15), 9 states have call predecessors, (15), 7 states have call successors, (15) Word has length 123 [2021-12-14 22:40:16,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:40:16,050 INFO L225 Difference]: With dead ends: 125 [2021-12-14 22:40:16,050 INFO L226 Difference]: Without dead ends: 59 [2021-12-14 22:40:16,050 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 260 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=119, Invalid=301, Unknown=0, NotChecked=0, Total=420 [2021-12-14 22:40:16,051 INFO L933 BasicCegarLoop]: 28 mSDtfsCounter, 74 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-14 22:40:16,051 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [75 Valid, 96 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-14 22:40:16,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2021-12-14 22:40:16,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2021-12-14 22:40:16,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 46 states have (on average 1.0869565217391304) internal successors, (50), 45 states have internal predecessors, (50), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (12), 8 states have call predecessors, (12), 5 states have call successors, (12) [2021-12-14 22:40:16,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 68 transitions. [2021-12-14 22:40:16,059 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 68 transitions. Word has length 123 [2021-12-14 22:40:16,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:40:16,059 INFO L470 AbstractCegarLoop]: Abstraction has 59 states and 68 transitions. [2021-12-14 22:40:16,060 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 4.529411764705882) internal successors, (77), 17 states have internal predecessors, (77), 7 states have call successors, (12), 1 states have call predecessors, (12), 7 states have return successors, (15), 9 states have call predecessors, (15), 7 states have call successors, (15) [2021-12-14 22:40:16,060 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 68 transitions. [2021-12-14 22:40:16,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-12-14 22:40:16,061 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:40:16,062 INFO L514 BasicCegarLoop]: trace histogram [17, 15, 14, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 6, 3, 1, 1, 1, 1, 1] [2021-12-14 22:40:16,089 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-12-14 22:40:16,275 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:40:16,275 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-14 22:40:16,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:40:16,276 INFO L85 PathProgramCache]: Analyzing trace with hash -45554286, now seen corresponding path program 4 times [2021-12-14 22:40:16,276 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:40:16,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820770128] [2021-12-14 22:40:16,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:40:16,276 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:40:16,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:16,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-14 22:40:16,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:16,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:16,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:16,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:16,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:16,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:16,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:16,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:40:16,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:16,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-14 22:40:16,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:16,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:16,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:16,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:16,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:16,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:16,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:16,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:40:16,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:16,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-14 22:40:16,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:16,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:16,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:16,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:16,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:16,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:16,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:16,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:40:16,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:16,463 INFO L134 CoverageAnalysis]: Checked inductivity of 826 backedges. 100 proven. 343 refuted. 0 times theorem prover too weak. 383 trivial. 0 not checked. [2021-12-14 22:40:16,463 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:40:16,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820770128] [2021-12-14 22:40:16,463 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820770128] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 22:40:16,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1498561144] [2021-12-14 22:40:16,463 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-12-14 22:40:16,463 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:40:16,463 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 22:40:16,464 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 22:40:16,495 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-14 22:40:16,521 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-12-14 22:40:16,521 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-14 22:40:16,523 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 14 conjunts are in the unsatisfiable core [2021-12-14 22:40:16,528 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 22:40:16,800 INFO L134 CoverageAnalysis]: Checked inductivity of 826 backedges. 463 proven. 189 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2021-12-14 22:40:16,800 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 22:40:17,413 INFO L134 CoverageAnalysis]: Checked inductivity of 826 backedges. 107 proven. 410 refuted. 0 times theorem prover too weak. 309 trivial. 0 not checked. [2021-12-14 22:40:17,413 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1498561144] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 22:40:17,413 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 22:40:17,414 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11, 14] total 21 [2021-12-14 22:40:17,414 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669645762] [2021-12-14 22:40:17,414 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 22:40:17,414 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-12-14 22:40:17,414 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:40:17,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-12-14 22:40:17,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=312, Unknown=0, NotChecked=0, Total=420 [2021-12-14 22:40:17,415 INFO L87 Difference]: Start difference. First operand 59 states and 68 transitions. Second operand has 21 states, 21 states have (on average 5.857142857142857) internal successors, (123), 21 states have internal predecessors, (123), 17 states have call successors, (23), 3 states have call predecessors, (23), 7 states have return successors, (24), 10 states have call predecessors, (24), 16 states have call successors, (24) [2021-12-14 22:40:17,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:40:17,608 INFO L93 Difference]: Finished difference Result 128 states and 153 transitions. [2021-12-14 22:40:17,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-14 22:40:17,609 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 5.857142857142857) internal successors, (123), 21 states have internal predecessors, (123), 17 states have call successors, (23), 3 states have call predecessors, (23), 7 states have return successors, (24), 10 states have call predecessors, (24), 16 states have call successors, (24) Word has length 158 [2021-12-14 22:40:17,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:40:17,609 INFO L225 Difference]: With dead ends: 128 [2021-12-14 22:40:17,610 INFO L226 Difference]: Without dead ends: 75 [2021-12-14 22:40:17,610 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 365 GetRequests, 337 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=231, Invalid=525, Unknown=0, NotChecked=0, Total=756 [2021-12-14 22:40:17,611 INFO L933 BasicCegarLoop]: 17 mSDtfsCounter, 181 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-14 22:40:17,612 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [184 Valid, 99 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-14 22:40:17,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2021-12-14 22:40:17,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 65. [2021-12-14 22:40:17,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 51 states have (on average 1.0784313725490196) internal successors, (55), 50 states have internal predecessors, (55), 7 states have call successors, (7), 6 states have call predecessors, (7), 5 states have return successors, (11), 8 states have call predecessors, (11), 6 states have call successors, (11) [2021-12-14 22:40:17,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 73 transitions. [2021-12-14 22:40:17,619 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 73 transitions. Word has length 158 [2021-12-14 22:40:17,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:40:17,620 INFO L470 AbstractCegarLoop]: Abstraction has 65 states and 73 transitions. [2021-12-14 22:40:17,620 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 5.857142857142857) internal successors, (123), 21 states have internal predecessors, (123), 17 states have call successors, (23), 3 states have call predecessors, (23), 7 states have return successors, (24), 10 states have call predecessors, (24), 16 states have call successors, (24) [2021-12-14 22:40:17,620 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 73 transitions. [2021-12-14 22:40:17,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-12-14 22:40:17,621 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:40:17,621 INFO L514 BasicCegarLoop]: trace histogram [10, 8, 8, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 1, 1, 1, 1, 1] [2021-12-14 22:40:17,647 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-12-14 22:40:17,835 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:40:17,836 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting fibonacciErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-14 22:40:17,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:40:17,836 INFO L85 PathProgramCache]: Analyzing trace with hash -486789354, now seen corresponding path program 3 times [2021-12-14 22:40:17,836 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:40:17,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413105499] [2021-12-14 22:40:17,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:40:17,836 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:40:17,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:17,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-14 22:40:17,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:17,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:17,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:17,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:17,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:17,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:17,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:17,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:40:17,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:17,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-14 22:40:17,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:17,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:17,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:17,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:17,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:17,949 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 38 proven. 23 refuted. 0 times theorem prover too weak. 185 trivial. 0 not checked. [2021-12-14 22:40:17,949 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:40:17,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413105499] [2021-12-14 22:40:17,949 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [413105499] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 22:40:17,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [214405288] [2021-12-14 22:40:17,950 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-14 22:40:17,950 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:40:17,950 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 22:40:17,951 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 22:40:17,953 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-12-14 22:40:18,004 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-12-14 22:40:18,004 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-14 22:40:18,005 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-14 22:40:18,006 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 22:40:18,178 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 62 proven. 5 refuted. 0 times theorem prover too weak. 179 trivial. 0 not checked. [2021-12-14 22:40:18,178 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 22:40:18,436 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 62 proven. 5 refuted. 0 times theorem prover too weak. 179 trivial. 0 not checked. [2021-12-14 22:40:18,436 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [214405288] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 22:40:18,436 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 22:40:18,436 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 7] total 14 [2021-12-14 22:40:18,436 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314411191] [2021-12-14 22:40:18,436 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 22:40:18,437 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-12-14 22:40:18,437 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:40:18,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-12-14 22:40:18,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2021-12-14 22:40:18,438 INFO L87 Difference]: Start difference. First operand 65 states and 73 transitions. Second operand has 15 states, 14 states have (on average 3.7142857142857144) internal successors, (52), 15 states have internal predecessors, (52), 5 states have call successors, (7), 1 states have call predecessors, (7), 4 states have return successors, (10), 9 states have call predecessors, (10), 5 states have call successors, (10) [2021-12-14 22:40:18,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:40:18,511 INFO L93 Difference]: Finished difference Result 65 states and 73 transitions. [2021-12-14 22:40:18,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-14 22:40:18,511 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 3.7142857142857144) internal successors, (52), 15 states have internal predecessors, (52), 5 states have call successors, (7), 1 states have call predecessors, (7), 4 states have return successors, (10), 9 states have call predecessors, (10), 5 states have call successors, (10) Word has length 91 [2021-12-14 22:40:18,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:40:18,512 INFO L225 Difference]: With dead ends: 65 [2021-12-14 22:40:18,512 INFO L226 Difference]: Without dead ends: 64 [2021-12-14 22:40:18,512 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2021-12-14 22:40:18,513 INFO L933 BasicCegarLoop]: 27 mSDtfsCounter, 13 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 22:40:18,513 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 176 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 22:40:18,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2021-12-14 22:40:18,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2021-12-14 22:40:18,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 51 states have (on average 1.0588235294117647) internal successors, (54), 49 states have internal predecessors, (54), 7 states have call successors, (7), 6 states have call predecessors, (7), 5 states have return successors, (11), 8 states have call predecessors, (11), 6 states have call successors, (11) [2021-12-14 22:40:18,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 72 transitions. [2021-12-14 22:40:18,517 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 72 transitions. Word has length 91 [2021-12-14 22:40:18,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:40:18,517 INFO L470 AbstractCegarLoop]: Abstraction has 64 states and 72 transitions. [2021-12-14 22:40:18,518 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 3.7142857142857144) internal successors, (52), 15 states have internal predecessors, (52), 5 states have call successors, (7), 1 states have call predecessors, (7), 4 states have return successors, (10), 9 states have call predecessors, (10), 5 states have call successors, (10) [2021-12-14 22:40:18,518 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 72 transitions. [2021-12-14 22:40:18,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2021-12-14 22:40:18,520 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:40:18,520 INFO L514 BasicCegarLoop]: trace histogram [30, 27, 24, 15, 15, 15, 15, 14, 14, 14, 14, 14, 13, 13, 12, 12, 9, 6, 1, 1, 1, 1, 1] [2021-12-14 22:40:18,548 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-12-14 22:40:18,735 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-12-14 22:40:18,736 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-14 22:40:18,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:40:18,736 INFO L85 PathProgramCache]: Analyzing trace with hash 1264446128, now seen corresponding path program 5 times [2021-12-14 22:40:18,736 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:40:18,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125399179] [2021-12-14 22:40:18,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:40:18,737 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:40:18,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:18,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-14 22:40:18,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:18,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:18,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:18,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:18,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:18,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:18,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:18,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:18,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:18,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:40:18,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:18,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 22:40:18,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:18,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:18,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:18,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:18,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:18,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-14 22:40:18,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:18,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:18,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:18,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:18,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:18,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:18,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:18,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:18,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:18,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:40:18,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:18,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 22:40:18,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:18,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:18,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:18,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:18,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:18,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-12-14 22:40:18,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:18,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:18,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:18,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:18,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:18,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:18,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:18,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:18,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:18,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:40:19,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:19,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 22:40:19,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:19,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:19,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:19,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:19,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:19,015 INFO L134 CoverageAnalysis]: Checked inductivity of 2749 backedges. 295 proven. 801 refuted. 0 times theorem prover too weak. 1653 trivial. 0 not checked. [2021-12-14 22:40:19,015 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:40:19,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125399179] [2021-12-14 22:40:19,016 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125399179] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 22:40:19,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1784514020] [2021-12-14 22:40:19,016 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-12-14 22:40:19,016 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:40:19,016 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 22:40:19,017 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 22:40:19,045 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-12-14 22:40:19,092 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2021-12-14 22:40:19,093 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-14 22:40:19,094 INFO L263 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 27 conjunts are in the unsatisfiable core [2021-12-14 22:40:19,098 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 22:40:19,637 INFO L134 CoverageAnalysis]: Checked inductivity of 2749 backedges. 1505 proven. 377 refuted. 0 times theorem prover too weak. 867 trivial. 0 not checked. [2021-12-14 22:40:19,637 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 22:40:20,654 INFO L134 CoverageAnalysis]: Checked inductivity of 2749 backedges. 329 proven. 792 refuted. 0 times theorem prover too weak. 1628 trivial. 0 not checked. [2021-12-14 22:40:20,654 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1784514020] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 22:40:20,654 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 22:40:20,654 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 11, 15] total 28 [2021-12-14 22:40:20,654 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011652109] [2021-12-14 22:40:20,654 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 22:40:20,657 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-12-14 22:40:20,657 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:40:20,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-12-14 22:40:20,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=601, Unknown=0, NotChecked=0, Total=756 [2021-12-14 22:40:20,658 INFO L87 Difference]: Start difference. First operand 64 states and 72 transitions. Second operand has 28 states, 28 states have (on average 5.25) internal successors, (147), 28 states have internal predecessors, (147), 17 states have call successors, (26), 4 states have call predecessors, (26), 12 states have return successors, (30), 19 states have call predecessors, (30), 15 states have call successors, (30) [2021-12-14 22:40:20,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:40:20,969 INFO L93 Difference]: Finished difference Result 153 states and 185 transitions. [2021-12-14 22:40:20,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-14 22:40:20,969 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 5.25) internal successors, (147), 28 states have internal predecessors, (147), 17 states have call successors, (26), 4 states have call predecessors, (26), 12 states have return successors, (30), 19 states have call predecessors, (30), 15 states have call successors, (30) Word has length 281 [2021-12-14 22:40:20,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:40:20,970 INFO L225 Difference]: With dead ends: 153 [2021-12-14 22:40:20,971 INFO L226 Difference]: Without dead ends: 95 [2021-12-14 22:40:20,971 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 641 GetRequests, 601 SyntacticMatches, 5 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 457 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=309, Invalid=1023, Unknown=0, NotChecked=0, Total=1332 [2021-12-14 22:40:20,972 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 240 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-14 22:40:20,972 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [240 Valid, 218 Invalid, 493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-14 22:40:20,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2021-12-14 22:40:20,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 79. [2021-12-14 22:40:20,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 63 states have (on average 1.0634920634920635) internal successors, (67), 61 states have internal predecessors, (67), 9 states have call successors, (9), 7 states have call predecessors, (9), 6 states have return successors, (15), 10 states have call predecessors, (15), 8 states have call successors, (15) [2021-12-14 22:40:20,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 91 transitions. [2021-12-14 22:40:20,978 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 91 transitions. Word has length 281 [2021-12-14 22:40:20,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:40:20,978 INFO L470 AbstractCegarLoop]: Abstraction has 79 states and 91 transitions. [2021-12-14 22:40:20,978 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 5.25) internal successors, (147), 28 states have internal predecessors, (147), 17 states have call successors, (26), 4 states have call predecessors, (26), 12 states have return successors, (30), 19 states have call predecessors, (30), 15 states have call successors, (30) [2021-12-14 22:40:20,979 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 91 transitions. [2021-12-14 22:40:20,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2021-12-14 22:40:20,980 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:40:20,980 INFO L514 BasicCegarLoop]: trace histogram [15, 14, 12, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 3, 1, 1, 1, 1, 1] [2021-12-14 22:40:21,007 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-12-14 22:40:21,180 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-12-14 22:40:21,180 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-14 22:40:21,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:40:21,181 INFO L85 PathProgramCache]: Analyzing trace with hash 276030473, now seen corresponding path program 6 times [2021-12-14 22:40:21,181 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:40:21,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520605813] [2021-12-14 22:40:21,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:40:21,181 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:40:21,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:21,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-14 22:40:21,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:21,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:21,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:21,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:21,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:21,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:21,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:21,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:21,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:21,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:40:21,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:21,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 22:40:21,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:21,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:21,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:21,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:21,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:21,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-14 22:40:21,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:21,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:21,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:21,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:21,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:21,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:21,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:21,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:40:21,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:21,442 INFO L134 CoverageAnalysis]: Checked inductivity of 662 backedges. 78 proven. 129 refuted. 0 times theorem prover too weak. 455 trivial. 0 not checked. [2021-12-14 22:40:21,442 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:40:21,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520605813] [2021-12-14 22:40:21,442 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520605813] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 22:40:21,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1665913692] [2021-12-14 22:40:21,443 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-12-14 22:40:21,443 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:40:21,443 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 22:40:21,444 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 22:40:21,468 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-12-14 22:40:21,513 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 12 check-sat command(s) [2021-12-14 22:40:21,513 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-14 22:40:21,514 INFO L263 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 29 conjunts are in the unsatisfiable core [2021-12-14 22:40:21,516 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 22:40:21,847 INFO L134 CoverageAnalysis]: Checked inductivity of 662 backedges. 78 proven. 129 refuted. 0 times theorem prover too weak. 455 trivial. 0 not checked. [2021-12-14 22:40:21,848 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 22:40:22,863 INFO L134 CoverageAnalysis]: Checked inductivity of 662 backedges. 144 proven. 122 refuted. 0 times theorem prover too weak. 396 trivial. 0 not checked. [2021-12-14 22:40:22,863 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1665913692] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 22:40:22,863 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 22:40:22,863 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 17] total 26 [2021-12-14 22:40:22,867 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427830458] [2021-12-14 22:40:22,867 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 22:40:22,868 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-12-14 22:40:22,868 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:40:22,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-12-14 22:40:22,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=168, Invalid=534, Unknown=0, NotChecked=0, Total=702 [2021-12-14 22:40:22,870 INFO L87 Difference]: Start difference. First operand 79 states and 91 transitions. Second operand has 27 states, 26 states have (on average 2.6538461538461537) internal successors, (69), 27 states have internal predecessors, (69), 7 states have call successors, (8), 1 states have call predecessors, (8), 7 states have return successors, (18), 18 states have call predecessors, (18), 7 states have call successors, (18) [2021-12-14 22:40:23,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:40:23,017 INFO L93 Difference]: Finished difference Result 132 states and 172 transitions. [2021-12-14 22:40:23,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-12-14 22:40:23,018 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 2.6538461538461537) internal successors, (69), 27 states have internal predecessors, (69), 7 states have call successors, (8), 1 states have call predecessors, (8), 7 states have return successors, (18), 18 states have call predecessors, (18), 7 states have call successors, (18) Word has length 143 [2021-12-14 22:40:23,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:40:23,019 INFO L225 Difference]: With dead ends: 132 [2021-12-14 22:40:23,019 INFO L226 Difference]: Without dead ends: 131 [2021-12-14 22:40:23,020 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 346 GetRequests, 316 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 366 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=228, Invalid=764, Unknown=0, NotChecked=0, Total=992 [2021-12-14 22:40:23,021 INFO L933 BasicCegarLoop]: 26 mSDtfsCounter, 43 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-14 22:40:23,021 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 229 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-14 22:40:23,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2021-12-14 22:40:23,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 117. [2021-12-14 22:40:23,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 93 states have (on average 1.043010752688172) internal successors, (97), 90 states have internal predecessors, (97), 13 states have call successors, (13), 7 states have call predecessors, (13), 10 states have return successors, (41), 19 states have call predecessors, (41), 12 states have call successors, (41) [2021-12-14 22:40:23,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 151 transitions. [2021-12-14 22:40:23,028 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 151 transitions. Word has length 143 [2021-12-14 22:40:23,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:40:23,028 INFO L470 AbstractCegarLoop]: Abstraction has 117 states and 151 transitions. [2021-12-14 22:40:23,028 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 2.6538461538461537) internal successors, (69), 27 states have internal predecessors, (69), 7 states have call successors, (8), 1 states have call predecessors, (8), 7 states have return successors, (18), 18 states have call predecessors, (18), 7 states have call successors, (18) [2021-12-14 22:40:23,028 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 151 transitions. [2021-12-14 22:40:23,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2021-12-14 22:40:23,031 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:40:23,031 INFO L514 BasicCegarLoop]: trace histogram [32, 30, 26, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 14, 14, 10, 6, 1, 1, 1, 1, 1] [2021-12-14 22:40:23,058 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-12-14 22:40:23,255 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-12-14 22:40:23,256 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-14 22:40:23,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:40:23,256 INFO L85 PathProgramCache]: Analyzing trace with hash -1438443897, now seen corresponding path program 7 times [2021-12-14 22:40:23,256 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:40:23,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560637284] [2021-12-14 22:40:23,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:40:23,256 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:40:23,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:23,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-14 22:40:23,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:23,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:23,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:23,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:23,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:23,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:23,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:23,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:23,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:23,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:23,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:23,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:40:23,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:23,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 22:40:23,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:23,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:23,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:23,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:23,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:23,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-14 22:40:23,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:23,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:23,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:23,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:23,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:23,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:23,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:23,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:40:23,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:23,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-14 22:40:23,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:23,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:23,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:23,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:23,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:23,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:23,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:23,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:23,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:23,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:23,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:23,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:40:23,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:23,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 22:40:23,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:23,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:23,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:23,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:23,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:23,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-14 22:40:23,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:23,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:23,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:23,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:23,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:23,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:23,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:23,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:40:23,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:23,678 INFO L134 CoverageAnalysis]: Checked inductivity of 3268 backedges. 534 proven. 998 refuted. 0 times theorem prover too weak. 1736 trivial. 0 not checked. [2021-12-14 22:40:23,678 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:40:23,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560637284] [2021-12-14 22:40:23,678 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560637284] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 22:40:23,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [520313089] [2021-12-14 22:40:23,678 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-12-14 22:40:23,678 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:40:23,678 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 22:40:23,679 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 22:40:23,681 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-12-14 22:40:23,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:23,782 INFO L263 TraceCheckSpWp]: Trace formula consists of 589 conjuncts, 22 conjunts are in the unsatisfiable core [2021-12-14 22:40:23,785 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 22:40:24,281 INFO L134 CoverageAnalysis]: Checked inductivity of 3268 backedges. 599 proven. 1181 refuted. 0 times theorem prover too weak. 1488 trivial. 0 not checked. [2021-12-14 22:40:24,281 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 22:40:25,965 INFO L134 CoverageAnalysis]: Checked inductivity of 3268 backedges. 599 proven. 1253 refuted. 0 times theorem prover too weak. 1416 trivial. 0 not checked. [2021-12-14 22:40:25,965 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [520313089] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 22:40:25,965 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 22:40:25,965 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 15, 23] total 33 [2021-12-14 22:40:25,966 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383770937] [2021-12-14 22:40:25,966 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 22:40:25,967 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2021-12-14 22:40:25,967 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:40:25,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-12-14 22:40:25,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=257, Invalid=799, Unknown=0, NotChecked=0, Total=1056 [2021-12-14 22:40:25,968 INFO L87 Difference]: Start difference. First operand 117 states and 151 transitions. Second operand has 33 states, 33 states have (on average 5.121212121212121) internal successors, (169), 33 states have internal predecessors, (169), 27 states have call successors, (31), 1 states have call predecessors, (31), 11 states have return successors, (42), 18 states have call predecessors, (42), 27 states have call successors, (42) [2021-12-14 22:40:26,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:40:26,430 INFO L93 Difference]: Finished difference Result 253 states and 374 transitions. [2021-12-14 22:40:26,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-12-14 22:40:26,431 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 5.121212121212121) internal successors, (169), 33 states have internal predecessors, (169), 27 states have call successors, (31), 1 states have call predecessors, (31), 11 states have return successors, (42), 18 states have call predecessors, (42), 27 states have call successors, (42) Word has length 306 [2021-12-14 22:40:26,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:40:26,433 INFO L225 Difference]: With dead ends: 253 [2021-12-14 22:40:26,433 INFO L226 Difference]: Without dead ends: 142 [2021-12-14 22:40:26,435 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 707 GetRequests, 657 SyntacticMatches, 2 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 694 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=646, Invalid=1804, Unknown=0, NotChecked=0, Total=2450 [2021-12-14 22:40:26,435 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 416 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 269 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 420 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 613 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 269 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-14 22:40:26,435 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [420 Valid, 152 Invalid, 613 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [269 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-14 22:40:26,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2021-12-14 22:40:26,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 129. [2021-12-14 22:40:26,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 104 states have (on average 1.0480769230769231) internal successors, (109), 100 states have internal predecessors, (109), 15 states have call successors, (15), 11 states have call predecessors, (15), 9 states have return successors, (37), 17 states have call predecessors, (37), 14 states have call successors, (37) [2021-12-14 22:40:26,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 161 transitions. [2021-12-14 22:40:26,444 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 161 transitions. Word has length 306 [2021-12-14 22:40:26,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:40:26,445 INFO L470 AbstractCegarLoop]: Abstraction has 129 states and 161 transitions. [2021-12-14 22:40:26,445 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 5.121212121212121) internal successors, (169), 33 states have internal predecessors, (169), 27 states have call successors, (31), 1 states have call predecessors, (31), 11 states have return successors, (42), 18 states have call predecessors, (42), 27 states have call successors, (42) [2021-12-14 22:40:26,445 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 161 transitions. [2021-12-14 22:40:26,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2021-12-14 22:40:26,448 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:40:26,448 INFO L514 BasicCegarLoop]: trace histogram [31, 30, 25, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 10, 6, 1, 1, 1, 1, 1] [2021-12-14 22:40:26,475 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-12-14 22:40:26,663 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-12-14 22:40:26,663 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-14 22:40:26,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:40:26,664 INFO L85 PathProgramCache]: Analyzing trace with hash -441922097, now seen corresponding path program 8 times [2021-12-14 22:40:26,664 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:40:26,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928767273] [2021-12-14 22:40:26,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:40:26,664 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:40:26,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:26,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-14 22:40:26,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:26,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:26,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:26,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:26,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:26,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:26,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:26,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:26,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:26,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:26,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:26,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:26,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:26,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:40:26,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:26,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 22:40:26,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:26,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:26,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:26,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:26,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:26,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-14 22:40:26,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:26,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:26,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:26,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:26,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:26,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:26,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:26,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:40:26,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:26,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-14 22:40:26,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:26,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:26,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:26,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:26,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:26,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:26,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:26,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:40:26,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:26,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2021-12-14 22:40:26,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:26,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:26,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:26,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:26,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:26,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:26,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:26,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:26,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:26,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:40:26,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:26,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 22:40:26,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:26,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:27,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:27,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:27,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:27,007 INFO L134 CoverageAnalysis]: Checked inductivity of 3136 backedges. 582 proven. 736 refuted. 0 times theorem prover too weak. 1818 trivial. 0 not checked. [2021-12-14 22:40:27,007 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:40:27,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928767273] [2021-12-14 22:40:27,007 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928767273] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 22:40:27,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1303847038] [2021-12-14 22:40:27,007 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-14 22:40:27,007 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:40:27,007 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 22:40:27,008 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 22:40:27,010 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-12-14 22:40:27,144 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-14 22:40:27,145 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-14 22:40:27,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 579 conjuncts, 18 conjunts are in the unsatisfiable core [2021-12-14 22:40:27,150 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 22:40:27,588 INFO L134 CoverageAnalysis]: Checked inductivity of 3136 backedges. 1778 proven. 484 refuted. 0 times theorem prover too weak. 874 trivial. 0 not checked. [2021-12-14 22:40:27,588 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 22:40:29,140 INFO L134 CoverageAnalysis]: Checked inductivity of 3136 backedges. 504 proven. 1101 refuted. 0 times theorem prover too weak. 1531 trivial. 0 not checked. [2021-12-14 22:40:29,140 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1303847038] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 22:40:29,140 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 22:40:29,141 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13, 19] total 27 [2021-12-14 22:40:29,141 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553071132] [2021-12-14 22:40:29,141 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 22:40:29,142 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-12-14 22:40:29,142 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:40:29,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-12-14 22:40:29,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=176, Invalid=526, Unknown=0, NotChecked=0, Total=702 [2021-12-14 22:40:29,143 INFO L87 Difference]: Start difference. First operand 129 states and 161 transitions. Second operand has 27 states, 27 states have (on average 5.62962962962963) internal successors, (152), 27 states have internal predecessors, (152), 22 states have call successors, (28), 2 states have call predecessors, (28), 10 states have return successors, (36), 14 states have call predecessors, (36), 22 states have call successors, (36) [2021-12-14 22:40:29,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:40:29,436 INFO L93 Difference]: Finished difference Result 241 states and 314 transitions. [2021-12-14 22:40:29,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-12-14 22:40:29,437 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 5.62962962962963) internal successors, (152), 27 states have internal predecessors, (152), 22 states have call successors, (28), 2 states have call predecessors, (28), 10 states have return successors, (36), 14 states have call predecessors, (36), 22 states have call successors, (36) Word has length 300 [2021-12-14 22:40:29,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:40:29,438 INFO L225 Difference]: With dead ends: 241 [2021-12-14 22:40:29,438 INFO L226 Difference]: Without dead ends: 118 [2021-12-14 22:40:29,439 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 682 GetRequests, 647 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 314 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=332, Invalid=858, Unknown=0, NotChecked=0, Total=1190 [2021-12-14 22:40:29,440 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 184 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-14 22:40:29,440 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [185 Valid, 187 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-14 22:40:29,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2021-12-14 22:40:29,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 106. [2021-12-14 22:40:29,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 85 states have (on average 1.035294117647059) internal successors, (88), 83 states have internal predecessors, (88), 13 states have call successors, (13), 10 states have call predecessors, (13), 7 states have return successors, (26), 12 states have call predecessors, (26), 12 states have call successors, (26) [2021-12-14 22:40:29,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 127 transitions. [2021-12-14 22:40:29,445 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 127 transitions. Word has length 300 [2021-12-14 22:40:29,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:40:29,445 INFO L470 AbstractCegarLoop]: Abstraction has 106 states and 127 transitions. [2021-12-14 22:40:29,446 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 5.62962962962963) internal successors, (152), 27 states have internal predecessors, (152), 22 states have call successors, (28), 2 states have call predecessors, (28), 10 states have return successors, (36), 14 states have call predecessors, (36), 22 states have call successors, (36) [2021-12-14 22:40:29,446 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 127 transitions. [2021-12-14 22:40:29,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2021-12-14 22:40:29,450 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:40:29,450 INFO L514 BasicCegarLoop]: trace histogram [36, 34, 29, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 17, 16, 16, 11, 7, 1, 1, 1, 1, 1] [2021-12-14 22:40:29,475 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2021-12-14 22:40:29,673 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-12-14 22:40:29,673 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-14 22:40:29,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:40:29,673 INFO L85 PathProgramCache]: Analyzing trace with hash 544597391, now seen corresponding path program 9 times [2021-12-14 22:40:29,673 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:40:29,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648086218] [2021-12-14 22:40:29,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:40:29,674 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:40:29,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:29,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-14 22:40:29,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:29,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:29,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:29,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:29,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:29,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:29,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:29,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:29,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:29,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:29,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:29,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:29,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:29,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:40:29,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:29,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 22:40:29,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:29,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:29,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:29,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:29,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:29,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-14 22:40:29,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:29,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:29,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:29,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:29,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:29,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:29,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:29,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:40:29,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:29,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-14 22:40:29,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:29,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:29,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:29,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:29,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:29,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:29,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:29,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:29,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:29,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:40:29,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:29,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 22:40:29,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:29,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:29,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:29,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:29,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:29,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2021-12-14 22:40:29,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:30,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:30,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:30,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:30,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:30,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:30,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:30,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:30,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:30,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:40:30,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:30,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 22:40:30,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:30,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:30,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:30,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:30,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:30,087 INFO L134 CoverageAnalysis]: Checked inductivity of 4183 backedges. 988 proven. 816 refuted. 0 times theorem prover too weak. 2379 trivial. 0 not checked. [2021-12-14 22:40:30,087 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:40:30,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648086218] [2021-12-14 22:40:30,087 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648086218] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 22:40:30,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1896667958] [2021-12-14 22:40:30,088 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-14 22:40:30,088 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:40:30,088 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 22:40:30,089 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 22:40:30,090 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-12-14 22:40:30,210 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2021-12-14 22:40:30,210 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-14 22:40:30,212 INFO L263 TraceCheckSpWp]: Trace formula consists of 398 conjuncts, 16 conjunts are in the unsatisfiable core [2021-12-14 22:40:30,216 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 22:40:30,812 INFO L134 CoverageAnalysis]: Checked inductivity of 4183 backedges. 1125 proven. 412 refuted. 0 times theorem prover too weak. 2646 trivial. 0 not checked. [2021-12-14 22:40:30,812 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 22:40:31,882 INFO L134 CoverageAnalysis]: Checked inductivity of 4183 backedges. 1125 proven. 448 refuted. 0 times theorem prover too weak. 2610 trivial. 0 not checked. [2021-12-14 22:40:31,883 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1896667958] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 22:40:31,883 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 22:40:31,883 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 12, 17] total 30 [2021-12-14 22:40:31,883 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051199042] [2021-12-14 22:40:31,883 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 22:40:31,884 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-12-14 22:40:31,884 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:40:31,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-12-14 22:40:31,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=215, Invalid=655, Unknown=0, NotChecked=0, Total=870 [2021-12-14 22:40:31,885 INFO L87 Difference]: Start difference. First operand 106 states and 127 transitions. Second operand has 30 states, 30 states have (on average 4.9) internal successors, (147), 30 states have internal predecessors, (147), 17 states have call successors, (27), 1 states have call predecessors, (27), 11 states have return successors, (35), 23 states have call predecessors, (35), 17 states have call successors, (35) [2021-12-14 22:40:32,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:40:32,266 INFO L93 Difference]: Finished difference Result 227 states and 277 transitions. [2021-12-14 22:40:32,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-12-14 22:40:32,267 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 4.9) internal successors, (147), 30 states have internal predecessors, (147), 17 states have call successors, (27), 1 states have call predecessors, (27), 11 states have return successors, (35), 23 states have call predecessors, (35), 17 states have call successors, (35) Word has length 345 [2021-12-14 22:40:32,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:40:32,269 INFO L225 Difference]: With dead ends: 227 [2021-12-14 22:40:32,269 INFO L226 Difference]: Without dead ends: 127 [2021-12-14 22:40:32,270 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 787 GetRequests, 744 SyntacticMatches, 3 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 513 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=448, Invalid=1274, Unknown=0, NotChecked=0, Total=1722 [2021-12-14 22:40:32,271 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 177 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-14 22:40:32,271 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [179 Valid, 194 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 434 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-14 22:40:32,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2021-12-14 22:40:32,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 106. [2021-12-14 22:40:32,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 85 states have (on average 1.035294117647059) internal successors, (88), 83 states have internal predecessors, (88), 13 states have call successors, (13), 10 states have call predecessors, (13), 7 states have return successors, (23), 12 states have call predecessors, (23), 12 states have call successors, (23) [2021-12-14 22:40:32,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 124 transitions. [2021-12-14 22:40:32,278 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 124 transitions. Word has length 345 [2021-12-14 22:40:32,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:40:32,278 INFO L470 AbstractCegarLoop]: Abstraction has 106 states and 124 transitions. [2021-12-14 22:40:32,279 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 4.9) internal successors, (147), 30 states have internal predecessors, (147), 17 states have call successors, (27), 1 states have call predecessors, (27), 11 states have return successors, (35), 23 states have call predecessors, (35), 17 states have call successors, (35) [2021-12-14 22:40:32,279 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 124 transitions. [2021-12-14 22:40:32,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 655 [2021-12-14 22:40:32,283 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:40:32,283 INFO L514 BasicCegarLoop]: trace histogram [68, 65, 55, 34, 34, 34, 34, 33, 33, 33, 33, 33, 32, 32, 31, 31, 21, 13, 1, 1, 1, 1, 1] [2021-12-14 22:40:32,311 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-12-14 22:40:32,503 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-12-14 22:40:32,503 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-14 22:40:32,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:40:32,503 INFO L85 PathProgramCache]: Analyzing trace with hash -421715791, now seen corresponding path program 10 times [2021-12-14 22:40:32,504 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:40:32,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986794454] [2021-12-14 22:40:32,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:40:32,504 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:40:32,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:32,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-14 22:40:32,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:32,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:32,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:32,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:32,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:32,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:32,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:32,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:32,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:32,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:32,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:32,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:32,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:32,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:40:32,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:32,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 22:40:32,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:32,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:32,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:32,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:32,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:32,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-14 22:40:32,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:32,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:32,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:32,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:32,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:32,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:32,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:32,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:40:32,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:32,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-14 22:40:32,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:32,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:32,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:32,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:32,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:32,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:32,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:32,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:32,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:32,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:40:32,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:32,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 22:40:32,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:32,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:32,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:32,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:32,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:32,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-12-14 22:40:32,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:32,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:32,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:33,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:33,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:33,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:33,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:33,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:33,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:33,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:33,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:33,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:33,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:33,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:40:33,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:33,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 22:40:33,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:33,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:33,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:33,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:33,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:33,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-14 22:40:33,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:33,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:33,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:33,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:33,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:33,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:33,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:33,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:40:33,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:33,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-14 22:40:33,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:33,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:33,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:33,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:33,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:33,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:33,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:33,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:33,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:33,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:40:33,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:33,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 22:40:33,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:33,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:33,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:33,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:33,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:33,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 509 [2021-12-14 22:40:33,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:33,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:33,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:33,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:33,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:33,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:33,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:33,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:33,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:33,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:33,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:33,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:40:33,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:33,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 22:40:33,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:33,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:33,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:33,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:33,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:33,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-14 22:40:33,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:33,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:33,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:33,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:33,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:33,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:33,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:33,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:40:33,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:33,239 INFO L134 CoverageAnalysis]: Checked inductivity of 15453 backedges. 1441 proven. 3679 refuted. 0 times theorem prover too weak. 10333 trivial. 0 not checked. [2021-12-14 22:40:33,239 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:40:33,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986794454] [2021-12-14 22:40:33,240 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986794454] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 22:40:33,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1825959387] [2021-12-14 22:40:33,240 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-12-14 22:40:33,240 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:40:33,240 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 22:40:33,244 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 22:40:33,275 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-12-14 22:40:33,426 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-12-14 22:40:33,426 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-14 22:40:33,429 INFO L263 TraceCheckSpWp]: Trace formula consists of 818 conjuncts, 26 conjunts are in the unsatisfiable core [2021-12-14 22:40:33,434 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 22:40:34,274 INFO L134 CoverageAnalysis]: Checked inductivity of 15453 backedges. 6799 proven. 2732 refuted. 0 times theorem prover too weak. 5922 trivial. 0 not checked. [2021-12-14 22:40:34,274 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 22:40:36,559 INFO L134 CoverageAnalysis]: Checked inductivity of 15453 backedges. 1436 proven. 4272 refuted. 0 times theorem prover too weak. 9745 trivial. 0 not checked. [2021-12-14 22:40:36,559 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1825959387] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 22:40:36,559 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 22:40:36,559 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 17, 26] total 37 [2021-12-14 22:40:36,559 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758133019] [2021-12-14 22:40:36,560 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 22:40:36,561 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2021-12-14 22:40:36,561 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:40:36,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-12-14 22:40:36,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=314, Invalid=1018, Unknown=0, NotChecked=0, Total=1332 [2021-12-14 22:40:36,562 INFO L87 Difference]: Start difference. First operand 106 states and 124 transitions. Second operand has 37 states, 37 states have (on average 5.756756756756757) internal successors, (213), 37 states have internal predecessors, (213), 34 states have call successors, (41), 3 states have call predecessors, (41), 13 states have return successors, (54), 22 states have call predecessors, (54), 33 states have call successors, (54) [2021-12-14 22:40:37,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:40:37,088 INFO L93 Difference]: Finished difference Result 255 states and 324 transitions. [2021-12-14 22:40:37,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-12-14 22:40:37,089 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 5.756756756756757) internal successors, (213), 37 states have internal predecessors, (213), 34 states have call successors, (41), 3 states have call predecessors, (41), 13 states have return successors, (54), 22 states have call predecessors, (54), 33 states have call successors, (54) Word has length 654 [2021-12-14 22:40:37,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:40:37,091 INFO L225 Difference]: With dead ends: 255 [2021-12-14 22:40:37,091 INFO L226 Difference]: Without dead ends: 155 [2021-12-14 22:40:37,093 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1484 GetRequests, 1423 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1034 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=945, Invalid=2715, Unknown=0, NotChecked=0, Total=3660 [2021-12-14 22:40:37,093 INFO L933 BasicCegarLoop]: 35 mSDtfsCounter, 426 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 408 mSolverCounterSat, 217 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 429 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 625 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 217 IncrementalHoareTripleChecker+Valid, 408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-14 22:40:37,093 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [429 Valid, 188 Invalid, 625 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [217 Valid, 408 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-14 22:40:37,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2021-12-14 22:40:37,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 134. [2021-12-14 22:40:37,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 108 states have (on average 1.037037037037037) internal successors, (112), 106 states have internal predecessors, (112), 17 states have call successors, (17), 14 states have call predecessors, (17), 8 states have return successors, (31), 13 states have call predecessors, (31), 16 states have call successors, (31) [2021-12-14 22:40:37,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 160 transitions. [2021-12-14 22:40:37,123 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 160 transitions. Word has length 654 [2021-12-14 22:40:37,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:40:37,126 INFO L470 AbstractCegarLoop]: Abstraction has 134 states and 160 transitions. [2021-12-14 22:40:37,126 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 5.756756756756757) internal successors, (213), 37 states have internal predecessors, (213), 34 states have call successors, (41), 3 states have call predecessors, (41), 13 states have return successors, (54), 22 states have call predecessors, (54), 33 states have call successors, (54) [2021-12-14 22:40:37,126 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 160 transitions. [2021-12-14 22:40:37,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 405 [2021-12-14 22:40:37,128 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:40:37,128 INFO L514 BasicCegarLoop]: trace histogram [42, 40, 34, 21, 21, 21, 21, 20, 20, 20, 20, 20, 20, 20, 19, 19, 13, 8, 1, 1, 1, 1, 1] [2021-12-14 22:40:37,156 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-12-14 22:40:37,351 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:40:37,351 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-14 22:40:37,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:40:37,352 INFO L85 PathProgramCache]: Analyzing trace with hash -201664112, now seen corresponding path program 11 times [2021-12-14 22:40:37,352 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:40:37,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718476810] [2021-12-14 22:40:37,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:40:37,352 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:40:37,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:37,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-14 22:40:37,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:37,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:37,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:37,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:37,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:37,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:37,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:37,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:37,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:37,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:37,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:37,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:37,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:37,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:40:37,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:37,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 22:40:37,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:37,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:37,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:37,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:37,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:37,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-14 22:40:37,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:37,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:37,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:37,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:37,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:37,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:37,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:37,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:40:37,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:37,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-14 22:40:37,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:37,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:37,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:37,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:37,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:37,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:37,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:37,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:37,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:37,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:40:37,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:37,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 22:40:37,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:37,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:37,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:37,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:37,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:37,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2021-12-14 22:40:37,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:37,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:37,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:37,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:37,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:37,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:37,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:37,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:37,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:37,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:37,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:37,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:40:37,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:37,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 22:40:37,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:37,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:37,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:37,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:37,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:37,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-14 22:40:37,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:37,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:37,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:37,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:37,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:37,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:37,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:37,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:40:37,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:37,964 INFO L134 CoverageAnalysis]: Checked inductivity of 5784 backedges. 820 proven. 1093 refuted. 0 times theorem prover too weak. 3871 trivial. 0 not checked. [2021-12-14 22:40:37,964 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:40:37,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718476810] [2021-12-14 22:40:37,964 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718476810] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 22:40:37,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1804390287] [2021-12-14 22:40:37,965 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-12-14 22:40:37,965 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:40:37,965 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 22:40:37,966 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 22:40:37,967 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-12-14 22:40:38,171 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 30 check-sat command(s) [2021-12-14 22:40:38,171 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-14 22:40:38,174 INFO L263 TraceCheckSpWp]: Trace formula consists of 770 conjuncts, 81 conjunts are in the unsatisfiable core [2021-12-14 22:40:38,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 22:40:38,968 INFO L134 CoverageAnalysis]: Checked inductivity of 5784 backedges. 820 proven. 1093 refuted. 0 times theorem prover too weak. 3871 trivial. 0 not checked. [2021-12-14 22:40:38,969 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 22:40:43,609 INFO L134 CoverageAnalysis]: Checked inductivity of 5784 backedges. 1149 proven. 996 refuted. 0 times theorem prover too weak. 3639 trivial. 0 not checked. [2021-12-14 22:40:43,609 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1804390287] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 22:40:43,609 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 22:40:43,610 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 29] total 40 [2021-12-14 22:40:43,610 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346356193] [2021-12-14 22:40:43,610 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 22:40:43,611 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2021-12-14 22:40:43,611 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:40:43,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-12-14 22:40:43,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=367, Invalid=1273, Unknown=0, NotChecked=0, Total=1640 [2021-12-14 22:40:43,612 INFO L87 Difference]: Start difference. First operand 134 states and 160 transitions. Second operand has 41 states, 40 states have (on average 2.575) internal successors, (103), 41 states have internal predecessors, (103), 11 states have call successors, (12), 1 states have call predecessors, (12), 11 states have return successors, (28), 28 states have call predecessors, (28), 11 states have call successors, (28) [2021-12-14 22:40:43,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:40:43,765 INFO L93 Difference]: Finished difference Result 165 states and 210 transitions. [2021-12-14 22:40:43,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-12-14 22:40:43,765 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 40 states have (on average 2.575) internal successors, (103), 41 states have internal predecessors, (103), 11 states have call successors, (12), 1 states have call predecessors, (12), 11 states have return successors, (28), 28 states have call predecessors, (28), 11 states have call successors, (28) Word has length 404 [2021-12-14 22:40:43,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:40:43,767 INFO L225 Difference]: With dead ends: 165 [2021-12-14 22:40:43,767 INFO L226 Difference]: Without dead ends: 164 [2021-12-14 22:40:43,768 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 970 GetRequests, 928 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 844 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=409, Invalid=1483, Unknown=0, NotChecked=0, Total=1892 [2021-12-14 22:40:43,768 INFO L933 BasicCegarLoop]: 27 mSDtfsCounter, 58 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-14 22:40:43,768 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 245 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-14 22:40:43,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2021-12-14 22:40:43,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 154. [2021-12-14 22:40:43,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 124 states have (on average 1.032258064516129) internal successors, (128), 121 states have internal predecessors, (128), 19 states have call successors, (19), 14 states have call predecessors, (19), 10 states have return successors, (49), 18 states have call predecessors, (49), 18 states have call successors, (49) [2021-12-14 22:40:43,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 196 transitions. [2021-12-14 22:40:43,776 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 196 transitions. Word has length 404 [2021-12-14 22:40:43,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:40:43,776 INFO L470 AbstractCegarLoop]: Abstraction has 154 states and 196 transitions. [2021-12-14 22:40:43,777 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 40 states have (on average 2.575) internal successors, (103), 41 states have internal predecessors, (103), 11 states have call successors, (12), 1 states have call predecessors, (12), 11 states have return successors, (28), 28 states have call predecessors, (28), 11 states have call successors, (28) [2021-12-14 22:40:43,777 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 196 transitions. [2021-12-14 22:40:43,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 817 [2021-12-14 22:40:43,782 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:40:43,782 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] [2021-12-14 22:40:43,807 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2021-12-14 22:40:43,996 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:40:43,996 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-14 22:40:43,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:40:43,996 INFO L85 PathProgramCache]: Analyzing trace with hash -2007415225, now seen corresponding path program 12 times [2021-12-14 22:40:43,996 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:40:43,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913141410] [2021-12-14 22:40:43,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:40:43,997 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:40:44,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:44,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-14 22:40:44,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:44,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:44,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:44,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:44,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:44,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:44,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:44,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:44,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:44,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:44,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:44,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:44,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:44,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:44,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:44,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:40:44,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:44,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 22:40:44,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:44,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:44,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:44,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:44,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:44,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-14 22:40:44,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:44,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:44,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:44,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:44,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:44,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:44,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:44,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:40:44,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:44,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-14 22:40:44,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:44,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:44,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:44,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:44,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:44,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:44,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:44,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:44,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:44,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:40:44,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:44,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 22:40:44,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:44,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:44,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:44,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:44,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:44,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2021-12-14 22:40:44,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:44,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:44,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:44,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:44,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:44,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:44,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:44,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:44,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:44,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:44,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:44,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:40:44,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:44,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 22:40:44,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:44,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:44,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:44,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:44,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:44,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-14 22:40:44,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:44,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:44,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:44,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:44,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:44,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:44,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:44,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:40:44,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:44,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 416 [2021-12-14 22:40:44,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:44,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:44,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:44,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:44,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:44,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:44,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:44,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:44,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:44,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:44,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:44,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:44,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:44,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:44,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:44,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:40:44,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:44,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 22:40:44,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:44,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:44,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:44,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:44,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:44,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-14 22:40:44,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:44,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:44,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:44,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:44,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:44,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:44,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:44,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:40:44,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:44,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-14 22:40:45,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:45,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:45,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:45,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:45,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:45,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:45,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:45,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:45,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:45,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:40:45,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:45,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 22:40:45,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:45,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:45,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:45,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:45,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:45,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2021-12-14 22:40:45,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:45,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:45,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:45,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:45,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:45,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:45,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:45,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:45,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:45,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:45,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:45,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:40:45,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:45,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 22:40:45,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:45,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:45,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:45,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:45,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:45,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-14 22:40:45,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:45,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:45,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:45,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:45,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:45,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:45,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:45,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:40:45,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:45,101 INFO L134 CoverageAnalysis]: Checked inductivity of 24175 backedges. 2328 proven. 4942 refuted. 0 times theorem prover too weak. 16905 trivial. 0 not checked. [2021-12-14 22:40:45,101 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:40:45,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913141410] [2021-12-14 22:40:45,101 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913141410] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 22:40:45,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1939003280] [2021-12-14 22:40:45,102 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-12-14 22:40:45,102 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:40:45,102 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 22:40:45,103 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 22:40:45,134 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-12-14 22:40:45,544 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 52 check-sat command(s) [2021-12-14 22:40:45,544 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-14 22:40:45,549 INFO L263 TraceCheckSpWp]: Trace formula consists of 1400 conjuncts, 20 conjunts are in the unsatisfiable core [2021-12-14 22:40:45,557 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 22:40:46,537 INFO L134 CoverageAnalysis]: Checked inductivity of 24175 backedges. 3148 proven. 2246 refuted. 0 times theorem prover too weak. 18781 trivial. 0 not checked. [2021-12-14 22:40:46,537 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 22:40:48,915 INFO L134 CoverageAnalysis]: Checked inductivity of 24175 backedges. 3156 proven. 2310 refuted. 0 times theorem prover too weak. 18709 trivial. 0 not checked. [2021-12-14 22:40:48,915 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1939003280] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 22:40:48,915 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 22:40:48,915 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 14, 21] total 40 [2021-12-14 22:40:48,915 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440518070] [2021-12-14 22:40:48,915 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 22:40:48,917 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2021-12-14 22:40:48,917 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:40:48,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-12-14 22:40:48,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=380, Invalid=1180, Unknown=0, NotChecked=0, Total=1560 [2021-12-14 22:40:48,918 INFO L87 Difference]: Start difference. First operand 154 states and 196 transitions. Second operand has 40 states, 40 states have (on average 4.875) internal successors, (195), 40 states have internal predecessors, (195), 24 states have call successors, (35), 1 states have call predecessors, (35), 15 states have return successors, (49), 33 states have call predecessors, (49), 24 states have call successors, (49) [2021-12-14 22:40:49,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:40:49,696 INFO L93 Difference]: Finished difference Result 359 states and 513 transitions. [2021-12-14 22:40:49,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-12-14 22:40:49,697 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 4.875) internal successors, (195), 40 states have internal predecessors, (195), 24 states have call successors, (35), 1 states have call predecessors, (35), 15 states have return successors, (49), 33 states have call predecessors, (49), 24 states have call successors, (49) Word has length 816 [2021-12-14 22:40:49,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:40:49,699 INFO L225 Difference]: With dead ends: 359 [2021-12-14 22:40:49,699 INFO L226 Difference]: Without dead ends: 211 [2021-12-14 22:40:49,702 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1848 GetRequests, 1782 SyntacticMatches, 2 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1317 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=1030, Invalid=3260, Unknown=0, NotChecked=0, Total=4290 [2021-12-14 22:40:49,703 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 587 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 778 mSolverCounterSat, 522 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 591 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 1300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 522 IncrementalHoareTripleChecker+Valid, 778 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-14 22:40:49,703 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [591 Valid, 281 Invalid, 1300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [522 Valid, 778 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-14 22:40:49,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2021-12-14 22:40:49,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 183. [2021-12-14 22:40:49,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 148 states have (on average 1.0337837837837838) internal successors, (153), 144 states have internal predecessors, (153), 23 states have call successors, (23), 17 states have call predecessors, (23), 11 states have return successors, (64), 21 states have call predecessors, (64), 22 states have call successors, (64) [2021-12-14 22:40:49,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 240 transitions. [2021-12-14 22:40:49,714 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 240 transitions. Word has length 816 [2021-12-14 22:40:49,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:40:49,716 INFO L470 AbstractCegarLoop]: Abstraction has 183 states and 240 transitions. [2021-12-14 22:40:49,716 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 4.875) internal successors, (195), 40 states have internal predecessors, (195), 24 states have call successors, (35), 1 states have call predecessors, (35), 15 states have return successors, (49), 33 states have call predecessors, (49), 24 states have call successors, (49) [2021-12-14 22:40:49,716 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 240 transitions. [2021-12-14 22:40:49,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 817 [2021-12-14 22:40:49,723 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:40:49,724 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] [2021-12-14 22:40:49,752 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-12-14 22:40:49,942 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:40:49,942 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-14 22:40:49,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:40:49,943 INFO L85 PathProgramCache]: Analyzing trace with hash 193385193, now seen corresponding path program 13 times [2021-12-14 22:40:49,943 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:40:49,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517203231] [2021-12-14 22:40:49,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:40:49,943 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:40:50,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:50,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-14 22:40:50,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:50,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:50,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:50,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:50,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:50,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:50,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:50,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:50,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:50,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:50,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:50,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:50,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:50,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:50,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:50,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:50,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:50,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:40:50,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:50,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 22:40:50,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:50,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:50,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:50,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:50,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:50,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-14 22:40:50,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:50,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:50,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:50,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:50,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:50,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:50,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:50,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:40:50,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:50,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-14 22:40:50,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:50,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:50,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:50,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:50,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:50,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:50,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:50,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:50,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:50,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:40:50,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:50,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 22:40:50,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:50,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:50,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:50,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:50,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:50,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2021-12-14 22:40:50,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:50,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:50,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:50,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:50,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:50,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:50,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:50,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:50,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:50,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:50,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:50,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:40:50,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:50,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 22:40:50,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:50,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:50,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:50,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:50,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:50,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-14 22:40:50,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:50,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:50,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:50,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:50,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:50,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:50,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:50,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:40:50,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:50,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 406 [2021-12-14 22:40:50,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:50,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:50,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:50,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:50,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:50,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:50,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:50,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:50,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:50,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:50,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:50,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:40:50,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:50,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 22:40:50,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:50,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:50,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:50,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:50,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:50,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-14 22:40:50,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:50,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:50,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:50,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:50,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:50,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:50,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:50,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:40:50,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:50,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 573 [2021-12-14 22:40:50,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:50,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:50,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:50,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:50,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:51,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:51,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:51,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:51,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:51,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:51,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:51,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:51,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:51,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:40:51,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:51,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 22:40:51,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:51,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:51,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:51,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:51,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:51,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-14 22:40:51,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:51,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:51,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:51,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:51,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:51,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:51,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:51,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:40:51,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:51,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-14 22:40:51,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:51,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:51,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:51,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:51,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:51,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:51,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:51,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:51,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:51,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:40:51,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:51,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 22:40:51,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:51,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:51,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:51,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:51,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:51,078 INFO L134 CoverageAnalysis]: Checked inductivity of 24175 backedges. 2384 proven. 4185 refuted. 0 times theorem prover too weak. 17606 trivial. 0 not checked. [2021-12-14 22:40:51,078 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:40:51,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517203231] [2021-12-14 22:40:51,079 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517203231] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 22:40:51,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2099279068] [2021-12-14 22:40:51,079 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-12-14 22:40:51,079 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:40:51,079 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 22:40:51,080 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 22:40:51,096 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-12-14 22:40:51,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:51,448 INFO L263 TraceCheckSpWp]: Trace formula consists of 1531 conjuncts, 26 conjunts are in the unsatisfiable core [2021-12-14 22:40:51,457 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 22:40:52,474 INFO L134 CoverageAnalysis]: Checked inductivity of 24175 backedges. 12343 proven. 2667 refuted. 0 times theorem prover too weak. 9165 trivial. 0 not checked. [2021-12-14 22:40:52,474 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 22:40:55,814 INFO L134 CoverageAnalysis]: Checked inductivity of 24175 backedges. 2261 proven. 5308 refuted. 0 times theorem prover too weak. 16606 trivial. 0 not checked. [2021-12-14 22:40:55,814 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2099279068] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 22:40:55,814 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 22:40:55,815 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 17, 27] total 39 [2021-12-14 22:40:55,815 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188785246] [2021-12-14 22:40:55,815 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 22:40:55,816 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2021-12-14 22:40:55,816 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:40:55,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2021-12-14 22:40:55,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=362, Invalid=1120, Unknown=0, NotChecked=0, Total=1482 [2021-12-14 22:40:55,817 INFO L87 Difference]: Start difference. First operand 183 states and 240 transitions. Second operand has 39 states, 39 states have (on average 5.435897435897436) internal successors, (212), 39 states have internal predecessors, (212), 34 states have call successors, (40), 2 states have call predecessors, (40), 14 states have return successors, (56), 22 states have call predecessors, (56), 34 states have call successors, (56) [2021-12-14 22:40:56,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:40:56,254 INFO L93 Difference]: Finished difference Result 361 states and 490 transitions. [2021-12-14 22:40:56,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-12-14 22:40:56,255 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 [2021-12-14 22:40:56,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:40:56,256 INFO L225 Difference]: With dead ends: 361 [2021-12-14 22:40:56,256 INFO L226 Difference]: Without dead ends: 184 [2021-12-14 22:40:56,258 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 [2021-12-14 22:40:56,259 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 240 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 616 mSolverCounterSat, 174 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 790 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 174 IncrementalHoareTripleChecker+Valid, 616 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-14 22:40:56,259 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [242 Valid, 261 Invalid, 790 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [174 Valid, 616 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-14 22:40:56,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2021-12-14 22:40:56,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 148. [2021-12-14 22:40:56,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 119 states have (on average 1.0252100840336134) internal successors, (122), 117 states have internal predecessors, (122), 19 states have call successors, (19), 14 states have call predecessors, (19), 9 states have return successors, (45), 16 states have call predecessors, (45), 18 states have call successors, (45) [2021-12-14 22:40:56,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 186 transitions. [2021-12-14 22:40:56,266 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 186 transitions. Word has length 816 [2021-12-14 22:40:56,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:40:56,267 INFO L470 AbstractCegarLoop]: Abstraction has 148 states and 186 transitions. [2021-12-14 22:40:56,267 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 5.435897435897436) internal successors, (212), 39 states have internal predecessors, (212), 34 states have call successors, (40), 2 states have call predecessors, (40), 14 states have return successors, (56), 22 states have call predecessors, (56), 34 states have call successors, (56) [2021-12-14 22:40:56,268 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 186 transitions. [2021-12-14 22:40:56,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1595 [2021-12-14 22:40:56,285 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:40:56,285 INFO L514 BasicCegarLoop]: trace histogram [165, 159, 134, 84, 84, 84, 84, 80, 80, 80, 80, 80, 79, 79, 78, 78, 50, 31, 1, 1, 1, 1, 1] [2021-12-14 22:40:56,310 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2021-12-14 22:40:56,499 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:40:56,499 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting fibonacciErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibonacciErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibonacciErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-14 22:40:56,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:40:56,500 INFO L85 PathProgramCache]: Analyzing trace with hash -236972288, now seen corresponding path program 14 times [2021-12-14 22:40:56,500 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:40:56,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843433314] [2021-12-14 22:40:56,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:40:56,500 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:40:56,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-14 22:40:57,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:57,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:57,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:57,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:57,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:57,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:57,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:57,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:57,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:40:57,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 22:40:57,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:57,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:57,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-14 22:40:57,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:57,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:57,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:57,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:40:57,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-14 22:40:57,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:57,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:57,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:57,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:57,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:40:57,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 22:40:57,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:57,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:57,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2021-12-14 22:40:57,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:57,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:57,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:57,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:57,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:57,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:40:57,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 22:40:57,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:57,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:57,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-14 22:40:57,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:57,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:57,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:57,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:40:57,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 406 [2021-12-14 22:40:57,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:57,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:57,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:57,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:57,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:57,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:57,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:40:57,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 22:40:57,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:57,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:57,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-14 22:40:57,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:57,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:57,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:57,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:40:57,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-14 22:40:57,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:57,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:57,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:57,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:57,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:40:57,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 22:40:57,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:57,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:57,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 695 [2021-12-14 22:40:57,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:58,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:58,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:58,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:58,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:58,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:58,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:58,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:58,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:58,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:58,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:58,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:58,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:58,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:58,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:58,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:58,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:58,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:40:58,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:58,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 22:40:58,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:58,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:58,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:58,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:58,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:58,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-14 22:40:58,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:58,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:58,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:58,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:58,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:58,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:58,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:58,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:40:58,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:58,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-14 22:40:58,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:58,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:58,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:58,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:58,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:58,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:58,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:58,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:58,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:58,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:40:58,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:58,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 22:40:58,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:58,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:58,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:58,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:58,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:58,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2021-12-14 22:40:58,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:58,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:58,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:58,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:58,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:58,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:58,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:58,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:58,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:58,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:58,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:58,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:40:58,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:58,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 22:40:58,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:58,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:58,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:58,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:58,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:58,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-14 22:40:58,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:58,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:58,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:58,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:58,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:58,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:58,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:58,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:40:58,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:58,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 406 [2021-12-14 22:40:58,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:58,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:58,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:58,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:58,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:58,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:58,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:58,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:58,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:58,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:58,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:58,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:58,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:58,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:40:58,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:58,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 22:40:58,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:58,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:58,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:58,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:58,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:58,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-14 22:40:58,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:58,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:58,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:58,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:58,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:58,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:58,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:58,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:40:58,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:58,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-14 22:40:58,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:58,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:58,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:58,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:58,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:58,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:58,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:58,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:58,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:58,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:40:58,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:58,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 22:40:58,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:58,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:58,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:58,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:58,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:58,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1351 [2021-12-14 22:40:58,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:58,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:58,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:58,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:58,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:58,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:58,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:58,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:58,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:58,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:58,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:58,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:58,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:58,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:40:58,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:58,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 22:40:58,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:58,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:58,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:58,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:58,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:58,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-14 22:40:58,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:58,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:58,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:58,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:58,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:58,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:58,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:58,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:40:58,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:58,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-14 22:40:58,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:58,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:58,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:58,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:58,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:58,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:58,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:58,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:58,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:58,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 22:40:58,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:58,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 22:40:58,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:58,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 22:40:58,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:58,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:58,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:58,583 INFO L134 CoverageAnalysis]: Checked inductivity of 93356 backedges. 4317 proven. 12808 refuted. 0 times theorem prover too weak. 76231 trivial. 0 not checked. [2021-12-14 22:40:58,584 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:40:58,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843433314] [2021-12-14 22:40:58,584 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843433314] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 22:40:58,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1437656548] [2021-12-14 22:40:58,584 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-14 22:40:58,584 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:40:58,585 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 22:40:58,588 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 22:40:58,597 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-12-14 22:40:59,173 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-14 22:40:59,174 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-14 22:40:59,185 INFO L263 TraceCheckSpWp]: Trace formula consists of 2965 conjuncts, 34 conjunts are in the unsatisfiable core [2021-12-14 22:40:59,226 INFO L286 TraceCheckSpWp]: Computing forward predicates...