./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-numeric/recHanoi02-1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 574ddb4e 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/recHanoi02-1.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 fc483b08189ee3c98902d05e6dbaf5e8d67294309bb86f0f1cb0c68cd8f4471f --- Real Ultimate output --- This is Ultimate 0.2.2-?-574ddb4 [2023-02-18 23:37:34,255 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-18 23:37:34,257 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-18 23:37:34,278 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-18 23:37:34,278 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-18 23:37:34,279 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-18 23:37:34,279 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-18 23:37:34,286 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-18 23:37:34,289 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-18 23:37:34,294 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-18 23:37:34,295 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-18 23:37:34,298 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-18 23:37:34,298 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-18 23:37:34,299 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-18 23:37:34,299 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-18 23:37:34,300 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-18 23:37:34,300 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-18 23:37:34,301 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-18 23:37:34,301 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-18 23:37:34,302 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-18 23:37:34,303 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-18 23:37:34,306 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-18 23:37:34,308 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-18 23:37:34,308 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-18 23:37:34,315 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-18 23:37:34,315 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-18 23:37:34,315 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-18 23:37:34,316 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-18 23:37:34,316 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-18 23:37:34,317 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-18 23:37:34,317 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-18 23:37:34,318 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-18 23:37:34,319 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-18 23:37:34,320 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-18 23:37:34,320 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-18 23:37:34,320 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-18 23:37:34,321 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-18 23:37:34,321 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-18 23:37:34,321 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-18 23:37:34,321 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-18 23:37:34,322 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-18 23:37:34,322 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-02-18 23:37:34,348 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-18 23:37:34,349 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-18 23:37:34,349 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-18 23:37:34,349 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-18 23:37:34,350 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-18 23:37:34,350 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-18 23:37:34,351 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-18 23:37:34,351 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-18 23:37:34,351 INFO L138 SettingsManager]: * Use SBE=true [2023-02-18 23:37:34,351 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-18 23:37:34,352 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-18 23:37:34,352 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-18 23:37:34,352 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-18 23:37:34,352 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-18 23:37:34,352 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-18 23:37:34,352 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-18 23:37:34,352 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-02-18 23:37:34,352 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-18 23:37:34,352 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-18 23:37:34,353 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-18 23:37:34,353 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-18 23:37:34,353 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-18 23:37:34,353 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-18 23:37:34,353 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 23:37:34,353 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-18 23:37:34,353 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-18 23:37:34,353 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-18 23:37:34,353 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-18 23:37:34,353 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-18 23:37:34,353 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-18 23:37:34,353 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-18 23:37:34,354 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-18 23:37:34,354 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-18 23:37:34,354 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-18 23:37:34,354 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fc483b08189ee3c98902d05e6dbaf5e8d67294309bb86f0f1cb0c68cd8f4471f [2023-02-18 23:37:34,540 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-18 23:37:34,569 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-18 23:37:34,571 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-18 23:37:34,571 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-18 23:37:34,572 INFO L275 PluginConnector]: CDTParser initialized [2023-02-18 23:37:34,572 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-numeric/recHanoi02-1.c [2023-02-18 23:37:35,543 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-18 23:37:35,683 INFO L351 CDTParser]: Found 1 translation units. [2023-02-18 23:37:35,684 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-numeric/recHanoi02-1.c [2023-02-18 23:37:35,688 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c4178349/af5c9495908246c4b4df17d4897ece3e/FLAG4020db415 [2023-02-18 23:37:35,697 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c4178349/af5c9495908246c4b4df17d4897ece3e [2023-02-18 23:37:35,699 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-18 23:37:35,699 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-18 23:37:35,700 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-18 23:37:35,700 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-18 23:37:35,703 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-18 23:37:35,703 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 11:37:35" (1/1) ... [2023-02-18 23:37:35,704 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26ac1b32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:37:35, skipping insertion in model container [2023-02-18 23:37:35,704 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 11:37:35" (1/1) ... [2023-02-18 23:37:35,708 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-18 23:37:35,716 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-18 23:37:35,797 WARN L237 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/recHanoi02-1.c[769,782] [2023-02-18 23:37:35,798 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 23:37:35,804 INFO L203 MainTranslator]: Completed pre-run [2023-02-18 23:37:35,812 WARN L237 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/recHanoi02-1.c[769,782] [2023-02-18 23:37:35,813 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 23:37:35,820 INFO L208 MainTranslator]: Completed translation [2023-02-18 23:37:35,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:37:35 WrapperNode [2023-02-18 23:37:35,821 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-18 23:37:35,822 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-18 23:37:35,822 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-18 23:37:35,822 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-18 23:37:35,826 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:37:35" (1/1) ... [2023-02-18 23:37:35,830 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:37:35" (1/1) ... [2023-02-18 23:37:35,839 INFO L138 Inliner]: procedures = 13, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 26 [2023-02-18 23:37:35,839 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-18 23:37:35,840 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-18 23:37:35,840 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-18 23:37:35,840 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-18 23:37:35,845 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:37:35" (1/1) ... [2023-02-18 23:37:35,845 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:37:35" (1/1) ... [2023-02-18 23:37:35,845 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:37:35" (1/1) ... [2023-02-18 23:37:35,846 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:37:35" (1/1) ... [2023-02-18 23:37:35,847 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:37:35" (1/1) ... [2023-02-18 23:37:35,848 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:37:35" (1/1) ... [2023-02-18 23:37:35,848 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:37:35" (1/1) ... [2023-02-18 23:37:35,849 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:37:35" (1/1) ... [2023-02-18 23:37:35,850 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-18 23:37:35,850 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-18 23:37:35,850 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-18 23:37:35,850 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-18 23:37:35,851 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:37:35" (1/1) ... [2023-02-18 23:37:35,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 23:37:35,861 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:37:35,870 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) [2023-02-18 23:37:35,874 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 [2023-02-18 23:37:35,925 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-18 23:37:35,925 INFO L130 BoogieDeclarations]: Found specification of procedure hanoi [2023-02-18 23:37:35,925 INFO L138 BoogieDeclarations]: Found implementation of procedure hanoi [2023-02-18 23:37:35,925 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-18 23:37:35,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-18 23:37:35,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-18 23:37:36,015 INFO L235 CfgBuilder]: Building ICFG [2023-02-18 23:37:36,016 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-18 23:37:36,158 INFO L276 CfgBuilder]: Performing block encoding [2023-02-18 23:37:36,162 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-18 23:37:36,162 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2023-02-18 23:37:36,163 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 11:37:36 BoogieIcfgContainer [2023-02-18 23:37:36,164 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-18 23:37:36,165 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-18 23:37:36,165 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-18 23:37:36,167 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-18 23:37:36,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.02 11:37:35" (1/3) ... [2023-02-18 23:37:36,168 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6364ad60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 11:37:36, skipping insertion in model container [2023-02-18 23:37:36,168 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:37:35" (2/3) ... [2023-02-18 23:37:36,168 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6364ad60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 11:37:36, skipping insertion in model container [2023-02-18 23:37:36,168 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 11:37:36" (3/3) ... [2023-02-18 23:37:36,169 INFO L112 eAbstractionObserver]: Analyzing ICFG recHanoi02-1.c [2023-02-18 23:37:36,195 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-18 23:37:36,195 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-02-18 23:37:36,222 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-18 23:37:36,227 INFO L357 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=PETRI_NET, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@125be716, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-18 23:37:36,227 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-02-18 23:37:36,230 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 18 states have (on average 1.5) internal successors, (27), 24 states have internal predecessors, (27), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-02-18 23:37:36,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-02-18 23:37:36,234 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:37:36,234 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-02-18 23:37:36,235 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 23:37:36,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:37:36,238 INFO L85 PathProgramCache]: Analyzing trace with hash -1325924785, now seen corresponding path program 1 times [2023-02-18 23:37:36,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:37:36,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34910245] [2023-02-18 23:37:36,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:37:36,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:37:36,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:37:36,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:37:36,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:37:36,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34910245] [2023-02-18 23:37:36,362 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34910245] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 23:37:36,362 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 23:37:36,363 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-18 23:37:36,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071907862] [2023-02-18 23:37:36,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 23:37:36,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-18 23:37:36,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:37:36,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-18 23:37:36,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-18 23:37:36,386 INFO L87 Difference]: Start difference. First operand has 28 states, 18 states have (on average 1.5) internal successors, (27), 24 states have internal predecessors, (27), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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) [2023-02-18 23:37:36,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:37:36,442 INFO L93 Difference]: Finished difference Result 54 states and 57 transitions. [2023-02-18 23:37:36,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-18 23:37:36,444 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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 7 [2023-02-18 23:37:36,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:37:36,449 INFO L225 Difference]: With dead ends: 54 [2023-02-18 23:37:36,449 INFO L226 Difference]: Without dead ends: 39 [2023-02-18 23:37:36,452 INFO L412 NwaCegarLoop]: 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 [2023-02-18 23:37:36,455 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 36 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:37:36,457 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 86 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:37:36,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2023-02-18 23:37:36,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 32. [2023-02-18 23:37:36,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 22 states have (on average 1.5) internal successors, (33), 27 states have internal predecessors, (33), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-02-18 23:37:36,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 38 transitions. [2023-02-18 23:37:36,480 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 38 transitions. Word has length 7 [2023-02-18 23:37:36,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:37:36,480 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 38 transitions. [2023-02-18 23:37:36,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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) [2023-02-18 23:37:36,481 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 38 transitions. [2023-02-18 23:37:36,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-02-18 23:37:36,481 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:37:36,481 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 23:37:36,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-18 23:37:36,482 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 23:37:36,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:37:36,482 INFO L85 PathProgramCache]: Analyzing trace with hash 1846004663, now seen corresponding path program 1 times [2023-02-18 23:37:36,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:37:36,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27962041] [2023-02-18 23:37:36,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:37:36,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:37:36,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:37:36,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:37:36,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:37:36,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27962041] [2023-02-18 23:37:36,521 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27962041] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 23:37:36,522 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 23:37:36,522 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-18 23:37:36,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705480309] [2023-02-18 23:37:36,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 23:37:36,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-18 23:37:36,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:37:36,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-18 23:37:36,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-18 23:37:36,524 INFO L87 Difference]: Start difference. First operand 32 states and 38 transitions. Second operand has 5 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:37:36,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:37:36,554 INFO L93 Difference]: Finished difference Result 32 states and 38 transitions. [2023-02-18 23:37:36,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-18 23:37:36,557 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-02-18 23:37:36,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:37:36,558 INFO L225 Difference]: With dead ends: 32 [2023-02-18 23:37:36,559 INFO L226 Difference]: Without dead ends: 31 [2023-02-18 23:37:36,559 INFO L412 NwaCegarLoop]: 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 [2023-02-18 23:37:36,560 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 29 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:37:36,562 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 32 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:37:36,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2023-02-18 23:37:36,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2023-02-18 23:37:36,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 26 states have internal predecessors, (31), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-02-18 23:37:36,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 36 transitions. [2023-02-18 23:37:36,568 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 36 transitions. Word has length 8 [2023-02-18 23:37:36,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:37:36,569 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 36 transitions. [2023-02-18 23:37:36,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:37:36,570 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 36 transitions. [2023-02-18 23:37:36,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-02-18 23:37:36,570 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:37:36,570 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 23:37:36,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-18 23:37:36,571 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 23:37:36,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:37:36,571 INFO L85 PathProgramCache]: Analyzing trace with hash 1230855953, now seen corresponding path program 1 times [2023-02-18 23:37:36,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:37:36,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328809044] [2023-02-18 23:37:36,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:37:36,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:37:36,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:37:36,637 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:37:36,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:37:36,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328809044] [2023-02-18 23:37:36,637 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328809044] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:37:36,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [558257699] [2023-02-18 23:37:36,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:37:36,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:37:36,639 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:37:36,642 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) [2023-02-18 23:37:36,660 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-18 23:37:36,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:37:36,700 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-18 23:37:36,703 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:37:36,736 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:37:36,736 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:37:36,770 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:37:36,770 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [558257699] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:37:36,770 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:37:36,770 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2023-02-18 23:37:36,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69885785] [2023-02-18 23:37:36,771 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:37:36,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-02-18 23:37:36,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:37:36,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-02-18 23:37:36,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2023-02-18 23:37:36,772 INFO L87 Difference]: Start difference. First operand 31 states and 36 transitions. Second operand has 12 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:37:36,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:37:36,869 INFO L93 Difference]: Finished difference Result 92 states and 99 transitions. [2023-02-18 23:37:36,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-02-18 23:37:36,870 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-02-18 23:37:36,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:37:36,871 INFO L225 Difference]: With dead ends: 92 [2023-02-18 23:37:36,871 INFO L226 Difference]: Without dead ends: 91 [2023-02-18 23:37:36,871 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 14 SyntacticMatches, 4 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2023-02-18 23:37:36,872 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 192 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 23:37:36,872 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 116 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 23:37:36,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2023-02-18 23:37:36,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 67. [2023-02-18 23:37:36,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 52 states have (on average 1.4615384615384615) internal successors, (76), 56 states have internal predecessors, (76), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-02-18 23:37:36,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 87 transitions. [2023-02-18 23:37:36,883 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 87 transitions. Word has length 12 [2023-02-18 23:37:36,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:37:36,883 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 87 transitions. [2023-02-18 23:37:36,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:37:36,884 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 87 transitions. [2023-02-18 23:37:36,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-02-18 23:37:36,884 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:37:36,925 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 23:37:36,930 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-02-18 23:37:37,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:37:37,126 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 23:37:37,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:37:37,127 INFO L85 PathProgramCache]: Analyzing trace with hash -2001544150, now seen corresponding path program 1 times [2023-02-18 23:37:37,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:37:37,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902527568] [2023-02-18 23:37:37,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:37:37,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:37:37,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:37:37,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-02-18 23:37:37,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:37:37,227 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-02-18 23:37:37,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:37:37,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902527568] [2023-02-18 23:37:37,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902527568] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 23:37:37,229 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 23:37:37,229 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-18 23:37:37,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469212437] [2023-02-18 23:37:37,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 23:37:37,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-18 23:37:37,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:37:37,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-18 23:37:37,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-18 23:37:37,234 INFO L87 Difference]: Start difference. First operand 67 states and 87 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-18 23:37:37,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:37:37,265 INFO L93 Difference]: Finished difference Result 104 states and 140 transitions. [2023-02-18 23:37:37,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-18 23:37:37,267 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2023-02-18 23:37:37,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:37:37,269 INFO L225 Difference]: With dead ends: 104 [2023-02-18 23:37:37,270 INFO L226 Difference]: Without dead ends: 93 [2023-02-18 23:37:37,270 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-18 23:37:37,271 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 3 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:37:37,273 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 45 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:37:37,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2023-02-18 23:37:37,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2023-02-18 23:37:37,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 75 states have (on average 1.3066666666666666) internal successors, (98), 78 states have internal predecessors, (98), 6 states have call successors, (6), 5 states have call predecessors, (6), 7 states have return successors, (9), 9 states have call predecessors, (9), 5 states have call successors, (9) [2023-02-18 23:37:37,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 113 transitions. [2023-02-18 23:37:37,282 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 113 transitions. Word has length 15 [2023-02-18 23:37:37,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:37:37,283 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 113 transitions. [2023-02-18 23:37:37,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-18 23:37:37,283 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 113 transitions. [2023-02-18 23:37:37,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-02-18 23:37:37,283 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:37:37,284 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 1, 1, 1, 1, 1] [2023-02-18 23:37:37,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-02-18 23:37:37,284 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 23:37:37,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:37:37,284 INFO L85 PathProgramCache]: Analyzing trace with hash -1886011185, now seen corresponding path program 2 times [2023-02-18 23:37:37,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:37:37,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880283633] [2023-02-18 23:37:37,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:37:37,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:37:37,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:37:37,435 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:37:37,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:37:37,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880283633] [2023-02-18 23:37:37,436 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880283633] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:37:37,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1750418732] [2023-02-18 23:37:37,436 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-18 23:37:37,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:37:37,436 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:37:37,437 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) [2023-02-18 23:37:37,472 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-18 23:37:37,473 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-18 23:37:37,479 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:37:37,482 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 12 conjunts are in the unsatisfiable core [2023-02-18 23:37:37,485 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:37:37,557 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:37:37,557 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:37:37,667 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:37:37,667 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1750418732] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:37:37,667 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:37:37,668 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2023-02-18 23:37:37,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540754664] [2023-02-18 23:37:37,671 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:37:37,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-02-18 23:37:37,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:37:37,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-02-18 23:37:37,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=416, Unknown=0, NotChecked=0, Total=552 [2023-02-18 23:37:37,673 INFO L87 Difference]: Start difference. First operand 93 states and 113 transitions. Second operand has 24 states, 21 states have (on average 2.0) internal successors, (42), 14 states have internal predecessors, (42), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:37:37,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:37:37,968 INFO L93 Difference]: Finished difference Result 248 states and 263 transitions. [2023-02-18 23:37:37,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-02-18 23:37:37,969 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 21 states have (on average 2.0) internal successors, (42), 14 states have internal predecessors, (42), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2023-02-18 23:37:37,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:37:37,970 INFO L225 Difference]: With dead ends: 248 [2023-02-18 23:37:37,970 INFO L226 Difference]: Without dead ends: 247 [2023-02-18 23:37:37,971 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 33 SyntacticMatches, 9 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 357 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=515, Invalid=1207, Unknown=0, NotChecked=0, Total=1722 [2023-02-18 23:37:37,972 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 491 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 493 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-18 23:37:37,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [493 Valid, 275 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-18 23:37:37,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2023-02-18 23:37:37,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 207. [2023-02-18 23:37:37,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 171 states have (on average 1.3099415204678362) internal successors, (224), 174 states have internal predecessors, (224), 12 states have call successors, (12), 11 states have call predecessors, (12), 19 states have return successors, (21), 21 states have call predecessors, (21), 11 states have call successors, (21) [2023-02-18 23:37:37,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 257 transitions. [2023-02-18 23:37:37,984 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 257 transitions. Word has length 27 [2023-02-18 23:37:37,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:37:37,984 INFO L495 AbstractCegarLoop]: Abstraction has 207 states and 257 transitions. [2023-02-18 23:37:37,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 21 states have (on average 2.0) internal successors, (42), 14 states have internal predecessors, (42), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:37:37,985 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 257 transitions. [2023-02-18 23:37:37,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-02-18 23:37:37,985 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:37:37,986 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 23:37:38,010 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-02-18 23:37:38,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:37:38,190 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 23:37:38,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:37:38,191 INFO L85 PathProgramCache]: Analyzing trace with hash 907320634, now seen corresponding path program 1 times [2023-02-18 23:37:38,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:37:38,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997350862] [2023-02-18 23:37:38,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:37:38,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:37:38,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:37:38,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-02-18 23:37:38,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:37:38,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:37:38,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:37:38,290 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-02-18 23:37:38,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:37:38,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997350862] [2023-02-18 23:37:38,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997350862] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:37:38,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [464244437] [2023-02-18 23:37:38,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:37:38,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:37:38,290 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:37:38,291 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) [2023-02-18 23:37:38,331 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-02-18 23:37:38,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:37:38,359 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-18 23:37:38,360 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:37:38,380 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-02-18 23:37:38,381 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-18 23:37:38,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [464244437] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 23:37:38,381 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-18 23:37:38,381 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2023-02-18 23:37:38,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020772105] [2023-02-18 23:37:38,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 23:37:38,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-18 23:37:38,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:37:38,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-18 23:37:38,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-02-18 23:37:38,386 INFO L87 Difference]: Start difference. First operand 207 states and 257 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-02-18 23:37:38,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:37:38,412 INFO L93 Difference]: Finished difference Result 207 states and 257 transitions. [2023-02-18 23:37:38,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-18 23:37:38,412 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 27 [2023-02-18 23:37:38,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:37:38,413 INFO L225 Difference]: With dead ends: 207 [2023-02-18 23:37:38,413 INFO L226 Difference]: Without dead ends: 205 [2023-02-18 23:37:38,414 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 27 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-02-18 23:37:38,414 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 5 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:37:38,414 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 62 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:37:38,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2023-02-18 23:37:38,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 205. [2023-02-18 23:37:38,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 171 states have (on average 1.1812865497076024) internal successors, (202), 172 states have internal predecessors, (202), 12 states have call successors, (12), 11 states have call predecessors, (12), 19 states have return successors, (21), 21 states have call predecessors, (21), 11 states have call successors, (21) [2023-02-18 23:37:38,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 235 transitions. [2023-02-18 23:37:38,432 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 235 transitions. Word has length 27 [2023-02-18 23:37:38,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:37:38,432 INFO L495 AbstractCegarLoop]: Abstraction has 205 states and 235 transitions. [2023-02-18 23:37:38,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-02-18 23:37:38,432 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 235 transitions. [2023-02-18 23:37:38,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-02-18 23:37:38,433 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:37:38,433 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 23:37:38,451 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-02-18 23:37:38,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:37:38,637 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting hanoiErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 23:37:38,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:37:38,638 INFO L85 PathProgramCache]: Analyzing trace with hash -1937831374, now seen corresponding path program 1 times [2023-02-18 23:37:38,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:37:38,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720924091] [2023-02-18 23:37:38,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:37:38,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:37:38,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:37:38,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-02-18 23:37:38,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:37:38,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:37:38,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:37:38,688 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-02-18 23:37:38,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:37:38,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720924091] [2023-02-18 23:37:38,688 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720924091] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:37:38,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [615030028] [2023-02-18 23:37:38,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:37:38,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:37:38,689 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:37:38,691 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) [2023-02-18 23:37:38,725 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-02-18 23:37:38,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:37:38,726 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-18 23:37:38,728 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:37:38,739 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-02-18 23:37:38,739 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:37:38,762 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-02-18 23:37:38,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [615030028] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:37:38,762 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:37:38,762 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-02-18 23:37:38,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540975033] [2023-02-18 23:37:38,762 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:37:38,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-02-18 23:37:38,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:37:38,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-02-18 23:37:38,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-02-18 23:37:38,763 INFO L87 Difference]: Start difference. First operand 205 states and 235 transitions. Second operand has 12 states, 11 states have (on average 3.272727272727273) internal successors, (36), 12 states have internal predecessors, (36), 1 states have call successors, (2), 1 states have call predecessors, (2), 5 states have return successors, (5), 5 states have call predecessors, (5), 1 states have call successors, (5) [2023-02-18 23:37:38,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:37:38,795 INFO L93 Difference]: Finished difference Result 409 states and 494 transitions. [2023-02-18 23:37:38,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-02-18 23:37:38,796 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), 1 states have call successors, (2), 1 states have call predecessors, (2), 5 states have return successors, (5), 5 states have call predecessors, (5), 1 states have call successors, (5) Word has length 28 [2023-02-18 23:37:38,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:37:38,797 INFO L225 Difference]: With dead ends: 409 [2023-02-18 23:37:38,797 INFO L226 Difference]: Without dead ends: 344 [2023-02-18 23:37:38,798 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 52 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-02-18 23:37:38,798 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 4 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:37:38,798 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 76 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:37:38,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2023-02-18 23:37:38,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 344. [2023-02-18 23:37:38,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 290 states have (on average 1.0586206896551724) internal successors, (307), 287 states have internal predecessors, (307), 12 states have call successors, (12), 11 states have call predecessors, (12), 40 states have return successors, (45), 45 states have call predecessors, (45), 11 states have call successors, (45) [2023-02-18 23:37:38,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 364 transitions. [2023-02-18 23:37:38,805 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 364 transitions. Word has length 28 [2023-02-18 23:37:38,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:37:38,805 INFO L495 AbstractCegarLoop]: Abstraction has 344 states and 364 transitions. [2023-02-18 23:37:38,805 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.272727272727273) internal successors, (36), 12 states have internal predecessors, (36), 1 states have call successors, (2), 1 states have call predecessors, (2), 5 states have return successors, (5), 5 states have call predecessors, (5), 1 states have call successors, (5) [2023-02-18 23:37:38,805 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 364 transitions. [2023-02-18 23:37:38,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-02-18 23:37:38,806 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:37:38,806 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 1, 1, 1, 1, 1] [2023-02-18 23:37:38,812 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-02-18 23:37:39,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:37:39,010 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 23:37:39,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:37:39,011 INFO L85 PathProgramCache]: Analyzing trace with hash 244264079, now seen corresponding path program 3 times [2023-02-18 23:37:39,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:37:39,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291041406] [2023-02-18 23:37:39,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:37:39,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:37:39,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:37:39,291 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:37:39,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:37:39,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291041406] [2023-02-18 23:37:39,292 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291041406] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:37:39,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1417278762] [2023-02-18 23:37:39,292 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-18 23:37:39,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:37:39,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:37:39,299 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) [2023-02-18 23:37:39,302 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-02-18 23:37:39,337 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2023-02-18 23:37:39,337 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:37:39,338 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 24 conjunts are in the unsatisfiable core [2023-02-18 23:37:39,339 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:37:39,489 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:37:39,489 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:37:39,871 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:37:39,871 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1417278762] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:37:39,871 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:37:39,872 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2023-02-18 23:37:39,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201100517] [2023-02-18 23:37:39,872 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:37:39,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2023-02-18 23:37:39,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:37:39,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2023-02-18 23:37:39,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=556, Invalid=1700, Unknown=0, NotChecked=0, Total=2256 [2023-02-18 23:37:39,874 INFO L87 Difference]: Start difference. First operand 344 states and 364 transitions. Second operand has 48 states, 45 states have (on average 2.0) internal successors, (90), 26 states have internal predecessors, (90), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:37:40,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:37:40,577 INFO L93 Difference]: Finished difference Result 823 states and 856 transitions. [2023-02-18 23:37:40,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2023-02-18 23:37:40,577 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 45 states have (on average 2.0) internal successors, (90), 26 states have internal predecessors, (90), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2023-02-18 23:37:40,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:37:40,581 INFO L225 Difference]: With dead ends: 823 [2023-02-18 23:37:40,581 INFO L226 Difference]: Without dead ends: 822 [2023-02-18 23:37:40,584 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 69 SyntacticMatches, 21 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1881 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=2204, Invalid=5278, Unknown=0, NotChecked=0, Total=7482 [2023-02-18 23:37:40,585 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 911 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 188 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 913 SdHoareTripleChecker+Valid, 452 SdHoareTripleChecker+Invalid, 652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 188 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-18 23:37:40,585 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [913 Valid, 452 Invalid, 652 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [188 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-18 23:37:40,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 822 states. [2023-02-18 23:37:40,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 822 to 800. [2023-02-18 23:37:40,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 800 states, 674 states have (on average 1.0608308605341246) internal successors, (715), 671 states have internal predecessors, (715), 24 states have call successors, (24), 23 states have call predecessors, (24), 100 states have return successors, (105), 105 states have call predecessors, (105), 23 states have call successors, (105) [2023-02-18 23:37:40,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 800 states to 800 states and 844 transitions. [2023-02-18 23:37:40,605 INFO L78 Accepts]: Start accepts. Automaton has 800 states and 844 transitions. Word has length 57 [2023-02-18 23:37:40,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:37:40,606 INFO L495 AbstractCegarLoop]: Abstraction has 800 states and 844 transitions. [2023-02-18 23:37:40,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 45 states have (on average 2.0) internal successors, (90), 26 states have internal predecessors, (90), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:37:40,606 INFO L276 IsEmpty]: Start isEmpty. Operand 800 states and 844 transitions. [2023-02-18 23:37:40,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-02-18 23:37:40,612 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:37:40,612 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1] [2023-02-18 23:37:40,621 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-02-18 23:37:40,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:37:40,817 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting hanoiErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 23:37:40,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:37:40,817 INFO L85 PathProgramCache]: Analyzing trace with hash 841754434, now seen corresponding path program 2 times [2023-02-18 23:37:40,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:37:40,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082031503] [2023-02-18 23:37:40,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:37:40,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:37:40,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:37:40,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-02-18 23:37:40,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:37:40,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:37:40,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:37:40,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:37:40,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:37:40,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:37:40,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:37:40,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:37:40,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:37:40,977 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-02-18 23:37:40,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:37:40,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082031503] [2023-02-18 23:37:40,977 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082031503] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:37:40,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1330571718] [2023-02-18 23:37:40,977 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-18 23:37:40,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:37:40,978 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:37:40,979 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) [2023-02-18 23:37:40,981 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-02-18 23:37:41,011 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-18 23:37:41,011 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:37:41,011 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 11 conjunts are in the unsatisfiable core [2023-02-18 23:37:41,013 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:37:41,041 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-02-18 23:37:41,041 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:37:41,142 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-02-18 23:37:41,142 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1330571718] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:37:41,142 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:37:41,142 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 23 [2023-02-18 23:37:41,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599477755] [2023-02-18 23:37:41,142 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:37:41,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-02-18 23:37:41,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:37:41,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-02-18 23:37:41,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2023-02-18 23:37:41,144 INFO L87 Difference]: Start difference. First operand 800 states and 844 transitions. Second operand has 24 states, 23 states have (on average 3.130434782608696) internal successors, (72), 24 states have internal predecessors, (72), 1 states have call successors, (2), 1 states have call predecessors, (2), 11 states have return successors, (11), 11 states have call predecessors, (11), 1 states have call successors, (11) [2023-02-18 23:37:41,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:37:41,210 INFO L93 Difference]: Finished difference Result 1743 states and 1924 transitions. [2023-02-18 23:37:41,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-02-18 23:37:41,210 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 3.130434782608696) internal successors, (72), 24 states have internal predecessors, (72), 1 states have call successors, (2), 1 states have call predecessors, (2), 11 states have return successors, (11), 11 states have call predecessors, (11), 1 states have call successors, (11) Word has length 64 [2023-02-18 23:37:41,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:37:41,215 INFO L225 Difference]: With dead ends: 1743 [2023-02-18 23:37:41,215 INFO L226 Difference]: Without dead ends: 1439 [2023-02-18 23:37:41,218 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 121 SyntacticMatches, 4 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 263 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2023-02-18 23:37:41,219 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 4 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:37:41,219 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 71 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:37:41,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1439 states. [2023-02-18 23:37:41,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1439 to 1439. [2023-02-18 23:37:41,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1439 states, 1226 states have (on average 1.0285481239804242) internal successors, (1261), 1217 states have internal predecessors, (1261), 24 states have call successors, (24), 23 states have call predecessors, (24), 187 states have return successors, (198), 198 states have call predecessors, (198), 23 states have call successors, (198) [2023-02-18 23:37:41,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1439 states to 1439 states and 1483 transitions. [2023-02-18 23:37:41,248 INFO L78 Accepts]: Start accepts. Automaton has 1439 states and 1483 transitions. Word has length 64 [2023-02-18 23:37:41,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:37:41,248 INFO L495 AbstractCegarLoop]: Abstraction has 1439 states and 1483 transitions. [2023-02-18 23:37:41,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 3.130434782608696) internal successors, (72), 24 states have internal predecessors, (72), 1 states have call successors, (2), 1 states have call predecessors, (2), 11 states have return successors, (11), 11 states have call predecessors, (11), 1 states have call successors, (11) [2023-02-18 23:37:41,248 INFO L276 IsEmpty]: Start isEmpty. Operand 1439 states and 1483 transitions. [2023-02-18 23:37:41,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-02-18 23:37:41,250 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:37:41,250 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 22, 22, 22, 1, 1, 1, 1, 1] [2023-02-18 23:37:41,256 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-02-18 23:37:41,454 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:37:41,454 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 23:37:41,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:37:41,455 INFO L85 PathProgramCache]: Analyzing trace with hash 1809372175, now seen corresponding path program 4 times [2023-02-18 23:37:41,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:37:41,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811434494] [2023-02-18 23:37:41,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:37:41,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:37:41,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:37:42,414 INFO L134 CoverageAnalysis]: Checked inductivity of 1221 backedges. 0 proven. 1221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:37:42,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:37:42,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811434494] [2023-02-18 23:37:42,414 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811434494] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:37:42,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1223060200] [2023-02-18 23:37:42,414 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-18 23:37:42,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:37:42,414 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:37:42,415 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) [2023-02-18 23:37:42,419 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-02-18 23:37:42,481 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-18 23:37:42,482 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:37:42,483 INFO L263 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 48 conjunts are in the unsatisfiable core [2023-02-18 23:37:42,487 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:37:43,041 INFO L134 CoverageAnalysis]: Checked inductivity of 1221 backedges. 0 proven. 1221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:37:43,041 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:37:44,310 INFO L134 CoverageAnalysis]: Checked inductivity of 1221 backedges. 0 proven. 1221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:37:44,310 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1223060200] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:37:44,310 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:37:44,310 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 95 [2023-02-18 23:37:44,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826127240] [2023-02-18 23:37:44,311 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:37:44,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2023-02-18 23:37:44,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:37:44,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2023-02-18 23:37:44,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2260, Invalid=6860, Unknown=0, NotChecked=0, Total=9120 [2023-02-18 23:37:44,315 INFO L87 Difference]: Start difference. First operand 1439 states and 1483 transitions. Second operand has 96 states, 93 states have (on average 2.0) internal successors, (186), 50 states have internal predecessors, (186), 46 states have call successors, (46), 46 states have call predecessors, (46), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:37:46,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:37:46,849 INFO L93 Difference]: Finished difference Result 3406 states and 3475 transitions. [2023-02-18 23:37:46,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 132 states. [2023-02-18 23:37:46,850 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 93 states have (on average 2.0) internal successors, (186), 50 states have internal predecessors, (186), 46 states have call successors, (46), 46 states have call predecessors, (46), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2023-02-18 23:37:46,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:37:46,857 INFO L225 Difference]: With dead ends: 3406 [2023-02-18 23:37:46,857 INFO L226 Difference]: Without dead ends: 3405 [2023-02-18 23:37:46,863 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 361 GetRequests, 141 SyntacticMatches, 45 SemanticMatches, 175 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8547 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=9119, Invalid=22033, Unknown=0, NotChecked=0, Total=31152 [2023-02-18 23:37:46,864 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 2716 mSDsluCounter, 835 mSDsCounter, 0 mSdLazyCounter, 901 mSolverCounterSat, 724 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2718 SdHoareTripleChecker+Valid, 905 SdHoareTripleChecker+Invalid, 1625 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 724 IncrementalHoareTripleChecker+Valid, 901 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-02-18 23:37:46,864 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2718 Valid, 905 Invalid, 1625 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [724 Valid, 901 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-02-18 23:37:46,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3405 states. [2023-02-18 23:37:46,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3405 to 3359. [2023-02-18 23:37:46,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3359 states, 2858 states have (on average 1.0290412876137158) internal successors, (2941), 2849 states have internal predecessors, (2941), 48 states have call successors, (48), 47 states have call predecessors, (48), 451 states have return successors, (462), 462 states have call predecessors, (462), 47 states have call successors, (462) [2023-02-18 23:37:46,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3359 states to 3359 states and 3451 transitions. [2023-02-18 23:37:46,907 INFO L78 Accepts]: Start accepts. Automaton has 3359 states and 3451 transitions. Word has length 117 [2023-02-18 23:37:46,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:37:46,908 INFO L495 AbstractCegarLoop]: Abstraction has 3359 states and 3451 transitions. [2023-02-18 23:37:46,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 93 states have (on average 2.0) internal successors, (186), 50 states have internal predecessors, (186), 46 states have call successors, (46), 46 states have call predecessors, (46), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:37:46,908 INFO L276 IsEmpty]: Start isEmpty. Operand 3359 states and 3451 transitions. [2023-02-18 23:37:46,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-02-18 23:37:46,910 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:37:46,910 INFO L195 NwaCegarLoop]: trace histogram [12, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 1, 1, 1, 1, 1, 1] [2023-02-18 23:37:46,930 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-02-18 23:37:47,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:37:47,117 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting hanoiErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 23:37:47,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:37:47,117 INFO L85 PathProgramCache]: Analyzing trace with hash 1057662018, now seen corresponding path program 3 times [2023-02-18 23:37:47,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:37:47,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397650235] [2023-02-18 23:37:47,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:37:47,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:37:47,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:37:47,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-02-18 23:37:47,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:37:47,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:37:47,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:37:47,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:37:47,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:37:47,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:37:47,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:37:47,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:37:47,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:37:47,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:37:47,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:37:47,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:37:47,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:37:47,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:37:47,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:37:47,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:37:47,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:37:47,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:37:47,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:37:47,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:37:47,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:37:47,793 INFO L134 CoverageAnalysis]: Checked inductivity of 662 backedges. 0 proven. 365 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2023-02-18 23:37:47,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:37:47,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397650235] [2023-02-18 23:37:47,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397650235] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:37:47,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [487028891] [2023-02-18 23:37:47,794 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-18 23:37:47,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:37:47,794 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:37:47,809 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) [2023-02-18 23:37:47,837 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-02-18 23:37:47,886 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2023-02-18 23:37:47,886 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:37:47,887 INFO L263 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 23 conjunts are in the unsatisfiable core [2023-02-18 23:37:47,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:37:47,991 INFO L134 CoverageAnalysis]: Checked inductivity of 662 backedges. 0 proven. 365 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2023-02-18 23:37:47,992 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:37:48,481 INFO L134 CoverageAnalysis]: Checked inductivity of 662 backedges. 0 proven. 365 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2023-02-18 23:37:48,481 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [487028891] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:37:48,481 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:37:48,481 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 47 [2023-02-18 23:37:48,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283303619] [2023-02-18 23:37:48,482 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:37:48,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2023-02-18 23:37:48,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:37:48,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2023-02-18 23:37:48,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=599, Invalid=1657, Unknown=0, NotChecked=0, Total=2256 [2023-02-18 23:37:48,484 INFO L87 Difference]: Start difference. First operand 3359 states and 3451 transitions. Second operand has 48 states, 47 states have (on average 3.0638297872340425) internal successors, (144), 48 states have internal predecessors, (144), 1 states have call successors, (2), 1 states have call predecessors, (2), 23 states have return successors, (23), 23 states have call predecessors, (23), 1 states have call successors, (23) [2023-02-18 23:37:48,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:37:48,632 INFO L93 Difference]: Finished difference Result 7260 states and 7915 transitions. [2023-02-18 23:37:48,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2023-02-18 23:37:48,633 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 3.0638297872340425) internal successors, (144), 48 states have internal predecessors, (144), 1 states have call successors, (2), 1 states have call predecessors, (2), 23 states have return successors, (23), 23 states have call predecessors, (23), 1 states have call successors, (23) Word has length 136 [2023-02-18 23:37:48,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:37:48,647 INFO L225 Difference]: With dead ends: 7260 [2023-02-18 23:37:48,647 INFO L226 Difference]: Without dead ends: 5897 [2023-02-18 23:37:48,650 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 315 GetRequests, 259 SyntacticMatches, 10 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1268 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=599, Invalid=1657, Unknown=0, NotChecked=0, Total=2256 [2023-02-18 23:37:48,651 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 4 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 23:37:48,651 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 109 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 23:37:48,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5897 states. [2023-02-18 23:37:48,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5897 to 5897. [2023-02-18 23:37:48,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5897 states, 5042 states have (on average 1.014081713605712) internal successors, (5113), 5021 states have internal predecessors, (5113), 48 states have call successors, (48), 47 states have call predecessors, (48), 805 states have return successors, (828), 828 states have call predecessors, (828), 47 states have call successors, (828) [2023-02-18 23:37:48,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5897 states to 5897 states and 5989 transitions. [2023-02-18 23:37:48,754 INFO L78 Accepts]: Start accepts. Automaton has 5897 states and 5989 transitions. Word has length 136 [2023-02-18 23:37:48,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:37:48,754 INFO L495 AbstractCegarLoop]: Abstraction has 5897 states and 5989 transitions. [2023-02-18 23:37:48,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 3.0638297872340425) internal successors, (144), 48 states have internal predecessors, (144), 1 states have call successors, (2), 1 states have call predecessors, (2), 23 states have return successors, (23), 23 states have call predecessors, (23), 1 states have call successors, (23) [2023-02-18 23:37:48,755 INFO L276 IsEmpty]: Start isEmpty. Operand 5897 states and 5989 transitions. [2023-02-18 23:37:48,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2023-02-18 23:37:48,758 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:37:48,758 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 46, 46, 46, 1, 1, 1, 1, 1] [2023-02-18 23:37:48,773 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-02-18 23:37:48,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-02-18 23:37:48,962 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 23:37:48,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:37:48,963 INFO L85 PathProgramCache]: Analyzing trace with hash 1901552399, now seen corresponding path program 5 times [2023-02-18 23:37:48,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:37:48,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437107899] [2023-02-18 23:37:48,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:37:48,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:37:48,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:37:51,865 INFO L134 CoverageAnalysis]: Checked inductivity of 5313 backedges. 0 proven. 5313 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:37:51,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:37:51,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437107899] [2023-02-18 23:37:51,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437107899] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:37:51,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1556465156] [2023-02-18 23:37:51,866 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-18 23:37:51,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:37:51,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:37:51,867 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) [2023-02-18 23:37:51,870 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-02-18 23:37:52,054 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2023-02-18 23:37:52,054 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:37:52,056 INFO L263 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 96 conjunts are in the unsatisfiable core [2023-02-18 23:37:52,060 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:37:54,097 INFO L134 CoverageAnalysis]: Checked inductivity of 5313 backedges. 0 proven. 5313 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:37:54,097 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:37:57,782 INFO L134 CoverageAnalysis]: Checked inductivity of 5313 backedges. 0 proven. 5313 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:37:57,782 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1556465156] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:37:57,782 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:37:57,783 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96, 96] total 191 [2023-02-18 23:37:57,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52983113] [2023-02-18 23:37:57,783 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:37:57,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2023-02-18 23:37:57,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:37:57,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2023-02-18 23:37:57,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9124, Invalid=27548, Unknown=0, NotChecked=0, Total=36672 [2023-02-18 23:37:57,805 INFO L87 Difference]: Start difference. First operand 5897 states and 5989 transitions. Second operand has 192 states, 189 states have (on average 2.0) internal successors, (378), 98 states have internal predecessors, (378), 94 states have call successors, (94), 94 states have call predecessors, (94), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:38:09,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:38:09,309 INFO L93 Difference]: Finished difference Result 13864 states and 14005 transitions. [2023-02-18 23:38:09,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 264 states. [2023-02-18 23:38:09,309 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 189 states have (on average 2.0) internal successors, (378), 98 states have internal predecessors, (378), 94 states have call successors, (94), 94 states have call predecessors, (94), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 237 [2023-02-18 23:38:09,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:38:09,342 INFO L225 Difference]: With dead ends: 13864 [2023-02-18 23:38:09,342 INFO L226 Difference]: Without dead ends: 13863 [2023-02-18 23:38:09,350 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 733 GetRequests, 285 SyntacticMatches, 93 SemanticMatches, 355 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36351 ImplicationChecksByTransitivity, 12.8s TimeCoverageRelationStatistics Valid=37097, Invalid=89995, Unknown=0, NotChecked=0, Total=127092 [2023-02-18 23:38:09,350 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 6780 mSDsluCounter, 1949 mSDsCounter, 0 mSdLazyCounter, 1883 mSolverCounterSat, 1623 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6782 SdHoareTripleChecker+Valid, 2091 SdHoareTripleChecker+Invalid, 3506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1623 IncrementalHoareTripleChecker+Valid, 1883 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-02-18 23:38:09,350 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6782 Valid, 2091 Invalid, 3506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1623 Valid, 1883 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-02-18 23:38:09,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13863 states. [2023-02-18 23:38:09,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13863 to 13769. [2023-02-18 23:38:09,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13769 states, 11762 states have (on average 1.0141982656010882) internal successors, (11929), 11741 states have internal predecessors, (11929), 96 states have call successors, (96), 95 states have call predecessors, (96), 1909 states have return successors, (1932), 1932 states have call predecessors, (1932), 95 states have call successors, (1932) [2023-02-18 23:38:09,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13769 states to 13769 states and 13957 transitions. [2023-02-18 23:38:09,536 INFO L78 Accepts]: Start accepts. Automaton has 13769 states and 13957 transitions. Word has length 237 [2023-02-18 23:38:09,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:38:09,536 INFO L495 AbstractCegarLoop]: Abstraction has 13769 states and 13957 transitions. [2023-02-18 23:38:09,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 189 states have (on average 2.0) internal successors, (378), 98 states have internal predecessors, (378), 94 states have call successors, (94), 94 states have call predecessors, (94), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:38:09,537 INFO L276 IsEmpty]: Start isEmpty. Operand 13769 states and 13957 transitions. [2023-02-18 23:38:09,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2023-02-18 23:38:09,543 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:38:09,544 INFO L195 NwaCegarLoop]: trace histogram [24, 23, 23, 23, 23, 23, 23, 23, 23, 22, 22, 22, 1, 1, 1, 1, 1, 1] [2023-02-18 23:38:09,548 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-02-18 23:38:09,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:38:09,749 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting hanoiErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 23:38:09,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:38:09,749 INFO L85 PathProgramCache]: Analyzing trace with hash 169614914, now seen corresponding path program 4 times [2023-02-18 23:38:09,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:38:09,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707405074] [2023-02-18 23:38:09,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:38:09,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:38:09,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:38:10,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-02-18 23:38:10,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:38:10,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:38:10,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:38:10,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:38:10,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:38:10,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:38:10,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:38:10,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:38:10,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:38:11,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:38:11,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:38:11,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:38:11,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:38:11,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:38:11,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:38:11,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:38:11,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:38:11,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:38:11,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:38:11,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:38:11,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:38:12,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:38:12,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:38:12,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:38:12,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:38:12,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:38:12,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:38:12,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:38:12,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:38:12,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:38:12,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:38:12,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:38:12,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:38:12,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:38:12,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:38:12,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:38:12,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:38:12,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:38:12,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:38:12,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:38:12,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:38:12,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:38:12,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:38:12,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:38:12,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:38:12,817 INFO L134 CoverageAnalysis]: Checked inductivity of 3038 backedges. 0 proven. 1727 refuted. 0 times theorem prover too weak. 1311 trivial. 0 not checked. [2023-02-18 23:38:12,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:38:12,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707405074] [2023-02-18 23:38:12,818 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707405074] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:38:12,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [801474886] [2023-02-18 23:38:12,818 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-18 23:38:12,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:38:12,818 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:38:12,842 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) [2023-02-18 23:38:12,845 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-02-18 23:38:12,986 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-18 23:38:12,986 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:38:12,988 INFO L263 TraceCheckSpWp]: Trace formula consists of 495 conjuncts, 47 conjunts are in the unsatisfiable core [2023-02-18 23:38:12,990 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:38:13,300 INFO L134 CoverageAnalysis]: Checked inductivity of 3038 backedges. 0 proven. 1727 refuted. 0 times theorem prover too weak. 1311 trivial. 0 not checked. [2023-02-18 23:38:13,300 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:38:15,643 INFO L134 CoverageAnalysis]: Checked inductivity of 3038 backedges. 0 proven. 1727 refuted. 0 times theorem prover too weak. 1311 trivial. 0 not checked. [2023-02-18 23:38:15,643 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [801474886] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:38:15,643 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:38:15,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47, 47] total 63 [2023-02-18 23:38:15,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120680414] [2023-02-18 23:38:15,644 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:38:15,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2023-02-18 23:38:15,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:38:15,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2023-02-18 23:38:15,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1055, Invalid=2977, Unknown=0, NotChecked=0, Total=4032 [2023-02-18 23:38:15,647 INFO L87 Difference]: Start difference. First operand 13769 states and 13957 transitions. Second operand has 64 states, 63 states have (on average 3.0952380952380953) internal successors, (195), 64 states have internal predecessors, (195), 1 states have call successors, (2), 1 states have call predecessors, (2), 31 states have return successors, (31), 31 states have call predecessors, (31), 1 states have call successors, (31) [2023-02-18 23:38:15,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:38:15,860 INFO L93 Difference]: Finished difference Result 19058 states and 20005 transitions. [2023-02-18 23:38:15,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2023-02-18 23:38:15,861 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 63 states have (on average 3.0952380952380953) internal successors, (195), 64 states have internal predecessors, (195), 1 states have call successors, (2), 1 states have call predecessors, (2), 31 states have return successors, (31), 31 states have call predecessors, (31), 1 states have call successors, (31) Word has length 280 [2023-02-18 23:38:15,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:38:15,905 INFO L225 Difference]: With dead ends: 19058 [2023-02-18 23:38:15,905 INFO L226 Difference]: Without dead ends: 17589 [2023-02-18 23:38:15,914 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 651 GetRequests, 535 SyntacticMatches, 54 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4208 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1055, Invalid=2977, Unknown=0, NotChecked=0, Total=4032 [2023-02-18 23:38:15,915 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 2 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-18 23:38:15,915 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 103 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-18 23:38:15,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17589 states. [2023-02-18 23:38:16,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17589 to 17589. [2023-02-18 23:38:16,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17589 states, 15042 states have (on average 1.0105704028719584) internal successors, (15201), 15013 states have internal predecessors, (15201), 96 states have call successors, (96), 95 states have call predecessors, (96), 2449 states have return successors, (2480), 2480 states have call predecessors, (2480), 95 states have call successors, (2480) [2023-02-18 23:38:16,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17589 states to 17589 states and 17777 transitions. [2023-02-18 23:38:16,135 INFO L78 Accepts]: Start accepts. Automaton has 17589 states and 17777 transitions. Word has length 280 [2023-02-18 23:38:16,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:38:16,136 INFO L495 AbstractCegarLoop]: Abstraction has 17589 states and 17777 transitions. [2023-02-18 23:38:16,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 63 states have (on average 3.0952380952380953) internal successors, (195), 64 states have internal predecessors, (195), 1 states have call successors, (2), 1 states have call predecessors, (2), 31 states have return successors, (31), 31 states have call predecessors, (31), 1 states have call successors, (31) [2023-02-18 23:38:16,136 INFO L276 IsEmpty]: Start isEmpty. Operand 17589 states and 17777 transitions. [2023-02-18 23:38:16,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 377 [2023-02-18 23:38:16,149 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:38:16,149 INFO L195 NwaCegarLoop]: trace histogram [32, 31, 31, 31, 31, 31, 31, 31, 31, 30, 30, 30, 1, 1, 1, 1, 1, 1] [2023-02-18 23:38:16,156 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-02-18 23:38:16,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-02-18 23:38:16,354 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting hanoiErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 23:38:16,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:38:16,355 INFO L85 PathProgramCache]: Analyzing trace with hash 1751849538, now seen corresponding path program 5 times [2023-02-18 23:38:16,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:38:16,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546104521] [2023-02-18 23:38:16,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:38:16,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:38:16,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:38:16,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-02-18 23:38:16,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:38:17,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:38:17,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:38:17,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:38:17,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:38:18,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:38:18,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:38:18,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:38:18,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:38:19,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:38:19,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:38:19,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:38:19,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:38:19,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:38:19,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:38:19,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:38:19,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:38:20,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:38:20,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:38:20,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:38:20,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:38:20,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:38:20,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:38:20,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:38:20,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:38:20,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:38:20,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:38:21,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:38:21,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:38:21,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:38:21,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:38:21,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:38:21,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:38:21,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:38:21,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:38:21,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:38:21,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:38:21,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:38:21,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:38:21,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:38:21,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:38:21,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:38:21,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:38:21,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:38:21,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:38:21,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:38:21,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:38:21,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:38:21,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:38:22,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:38:22,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:38:22,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:38:22,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:38:22,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:38:22,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:38:22,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:38:22,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:38:22,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:38:22,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:38:22,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:38:22,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:38:22,193 INFO L134 CoverageAnalysis]: Checked inductivity of 5582 backedges. 3135 proven. 212 refuted. 0 times theorem prover too weak. 2235 trivial. 0 not checked. [2023-02-18 23:38:22,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:38:22,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546104521] [2023-02-18 23:38:22,194 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546104521] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:38:22,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1390858595] [2023-02-18 23:38:22,194 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-18 23:38:22,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:38:22,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:38:22,217 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) [2023-02-18 23:38:22,233 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-02-18 23:38:22,942 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 32 check-sat command(s) [2023-02-18 23:38:22,942 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:38:22,945 INFO L263 TraceCheckSpWp]: Trace formula consists of 655 conjuncts, 66 conjunts are in the unsatisfiable core [2023-02-18 23:38:22,949 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:38:23,413 INFO L134 CoverageAnalysis]: Checked inductivity of 5582 backedges. 3195 proven. 152 refuted. 0 times theorem prover too weak. 2235 trivial. 0 not checked. [2023-02-18 23:38:23,413 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:38:29,504 INFO L134 CoverageAnalysis]: Checked inductivity of 5582 backedges. 3195 proven. 1922 refuted. 0 times theorem prover too weak. 465 trivial. 0 not checked. [2023-02-18 23:38:29,504 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1390858595] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:38:29,504 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:38:29,505 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 37, 67] total 70 [2023-02-18 23:38:29,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712963602] [2023-02-18 23:38:29,505 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:38:29,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 70 states [2023-02-18 23:38:29,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:38:29,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2023-02-18 23:38:29,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1164, Invalid=3666, Unknown=0, NotChecked=0, Total=4830 [2023-02-18 23:38:29,508 INFO L87 Difference]: Start difference. First operand 17589 states and 17777 transitions. Second operand has 70 states, 69 states have (on average 4.695652173913044) internal successors, (324), 69 states have internal predecessors, (324), 34 states have call successors, (34), 2 states have call predecessors, (34), 32 states have return successors, (91), 31 states have call predecessors, (91), 33 states have call successors, (91) [2023-02-18 23:38:30,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:38:30,050 INFO L93 Difference]: Finished difference Result 17965 states and 18154 transitions. [2023-02-18 23:38:30,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-02-18 23:38:30,051 INFO L78 Accepts]: Start accepts. Automaton has has 70 states, 69 states have (on average 4.695652173913044) internal successors, (324), 69 states have internal predecessors, (324), 34 states have call successors, (34), 2 states have call predecessors, (34), 32 states have return successors, (91), 31 states have call predecessors, (91), 33 states have call successors, (91) Word has length 376 [2023-02-18 23:38:30,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:38:30,055 INFO L225 Difference]: With dead ends: 17965 [2023-02-18 23:38:30,055 INFO L226 Difference]: Without dead ends: 480 [2023-02-18 23:38:30,074 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 880 GetRequests, 683 SyntacticMatches, 97 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2077 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=3311, Invalid=6991, Unknown=0, NotChecked=0, Total=10302 [2023-02-18 23:38:30,074 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 204 mSDsluCounter, 990 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 1176 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 23:38:30,074 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 1176 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 23:38:30,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2023-02-18 23:38:30,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 478. [2023-02-18 23:38:30,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 382 states have (on average 1.0026178010471205) internal successors, (383), 382 states have internal predecessors, (383), 95 states have call successors, (95), 95 states have call predecessors, (95), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:38:30,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 478 transitions. [2023-02-18 23:38:30,084 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 478 transitions. Word has length 376 [2023-02-18 23:38:30,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:38:30,085 INFO L495 AbstractCegarLoop]: Abstraction has 478 states and 478 transitions. [2023-02-18 23:38:30,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 70 states, 69 states have (on average 4.695652173913044) internal successors, (324), 69 states have internal predecessors, (324), 34 states have call successors, (34), 2 states have call predecessors, (34), 32 states have return successors, (91), 31 states have call predecessors, (91), 33 states have call successors, (91) [2023-02-18 23:38:30,085 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 478 transitions. [2023-02-18 23:38:30,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 478 [2023-02-18 23:38:30,090 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:38:30,090 INFO L195 NwaCegarLoop]: trace histogram [95, 95, 94, 94, 94, 1, 1, 1, 1, 1] [2023-02-18 23:38:30,101 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-02-18 23:38:30,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-02-18 23:38:30,302 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 23:38:30,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:38:30,302 INFO L85 PathProgramCache]: Analyzing trace with hash 1283555599, now seen corresponding path program 6 times [2023-02-18 23:38:30,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:38:30,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621562612] [2023-02-18 23:38:30,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:38:30,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:38:30,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:38:41,449 INFO L134 CoverageAnalysis]: Checked inductivity of 22137 backedges. 0 proven. 22137 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:38:41,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:38:41,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621562612] [2023-02-18 23:38:41,449 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621562612] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:38:41,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [278396458] [2023-02-18 23:38:41,449 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-02-18 23:38:41,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:38:41,449 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:38:41,452 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) [2023-02-18 23:38:41,453 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-02-18 23:38:43,592 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2023-02-18 23:38:43,592 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:38:43,598 INFO L263 TraceCheckSpWp]: Trace formula consists of 883 conjuncts, 192 conjunts are in the unsatisfiable core [2023-02-18 23:38:43,603 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:38:49,149 INFO L134 CoverageAnalysis]: Checked inductivity of 22137 backedges. 0 proven. 22137 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:38:49,149 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:39:03,421 INFO L134 CoverageAnalysis]: Checked inductivity of 22137 backedges. 0 proven. 22137 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:39:03,422 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [278396458] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:39:03,422 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:39:03,422 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [192, 192, 192] total 383 [2023-02-18 23:39:03,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873038589] [2023-02-18 23:39:03,422 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:39:03,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 384 states [2023-02-18 23:39:03,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:39:03,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 384 interpolants. [2023-02-18 23:39:03,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36676, Invalid=110396, Unknown=0, NotChecked=0, Total=147072 [2023-02-18 23:39:03,443 INFO L87 Difference]: Start difference. First operand 478 states and 478 transitions. Second operand has 384 states, 381 states have (on average 2.0) internal successors, (762), 194 states have internal predecessors, (762), 190 states have call successors, (190), 190 states have call predecessors, (190), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:39:31,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:39:31,425 INFO L93 Difference]: Finished difference Result 961 states and 1056 transitions. [2023-02-18 23:39:31,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 384 states. [2023-02-18 23:39:31,441 INFO L78 Accepts]: Start accepts. Automaton has has 384 states, 381 states have (on average 2.0) internal successors, (762), 194 states have internal predecessors, (762), 190 states have call successors, (190), 190 states have call predecessors, (190), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 477 [2023-02-18 23:39:31,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:39:31,443 INFO L225 Difference]: With dead ends: 961 [2023-02-18 23:39:31,443 INFO L226 Difference]: Without dead ends: 960 [2023-02-18 23:39:31,458 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1334 GetRequests, 573 SyntacticMatches, 189 SemanticMatches, 572 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98143 ImplicationChecksByTransitivity, 38.5s TimeCoverageRelationStatistics Valid=91301, Invalid=237601, Unknown=0, NotChecked=0, Total=328902 [2023-02-18 23:39:31,459 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 3317 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 1745 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3317 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 1747 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1745 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-02-18 23:39:31,460 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3317 Valid, 61 Invalid, 1747 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1745 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-02-18 23:39:31,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 960 states. [2023-02-18 23:39:31,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 960 to 958. [2023-02-18 23:39:31,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 958 states, 766 states have (on average 1.0013054830287207) internal successors, (767), 766 states have internal predecessors, (767), 191 states have call successors, (191), 191 states have call predecessors, (191), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:39:31,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 958 states to 958 states and 958 transitions. [2023-02-18 23:39:31,476 INFO L78 Accepts]: Start accepts. Automaton has 958 states and 958 transitions. Word has length 477 [2023-02-18 23:39:31,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:39:31,478 INFO L495 AbstractCegarLoop]: Abstraction has 958 states and 958 transitions. [2023-02-18 23:39:31,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 384 states, 381 states have (on average 2.0) internal successors, (762), 194 states have internal predecessors, (762), 190 states have call successors, (190), 190 states have call predecessors, (190), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:39:31,478 INFO L276 IsEmpty]: Start isEmpty. Operand 958 states and 958 transitions. [2023-02-18 23:39:31,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 958 [2023-02-18 23:39:31,491 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:39:31,492 INFO L195 NwaCegarLoop]: trace histogram [191, 191, 190, 190, 190, 1, 1, 1, 1, 1] [2023-02-18 23:39:31,509 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-02-18 23:39:31,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-02-18 23:39:31,710 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 23:39:31,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:39:31,710 INFO L85 PathProgramCache]: Analyzing trace with hash -410403569, now seen corresponding path program 7 times [2023-02-18 23:39:31,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:39:31,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485350893] [2023-02-18 23:39:31,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:39:31,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:39:31,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:40:24,025 INFO L134 CoverageAnalysis]: Checked inductivity of 90345 backedges. 0 proven. 90345 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:40:24,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:40:24,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485350893] [2023-02-18 23:40:24,031 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485350893] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:40:24,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1418241993] [2023-02-18 23:40:24,031 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-02-18 23:40:24,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:40:24,031 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:40:24,033 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) [2023-02-18 23:40:24,034 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-02-18 23:40:26,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:40:26,150 INFO L263 TraceCheckSpWp]: Trace formula consists of 1747 conjuncts, 384 conjunts are in the unsatisfiable core [2023-02-18 23:40:26,160 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:40:47,614 INFO L134 CoverageAnalysis]: Checked inductivity of 90345 backedges. 0 proven. 90345 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:40:47,615 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:41:50,613 INFO L134 CoverageAnalysis]: Checked inductivity of 90345 backedges. 0 proven. 90345 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:41:50,613 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1418241993] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:41:50,613 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:41:50,614 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [384, 384, 384] total 767 [2023-02-18 23:41:50,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889919746] [2023-02-18 23:41:50,614 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:41:50,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 768 states [2023-02-18 23:41:50,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:41:50,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 768 interpolants. [2023-02-18 23:41:50,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=147076, Invalid=441980, Unknown=0, NotChecked=0, Total=589056 [2023-02-18 23:41:50,701 INFO L87 Difference]: Start difference. First operand 958 states and 958 transitions. Second operand has 768 states, 765 states have (on average 2.0) internal successors, (1530), 386 states have internal predecessors, (1530), 382 states have call successors, (382), 382 states have call predecessors, (382), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:46:16,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:46:16,489 INFO L93 Difference]: Finished difference Result 1921 states and 2112 transitions. [2023-02-18 23:46:16,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 768 states. [2023-02-18 23:46:16,491 INFO L78 Accepts]: Start accepts. Automaton has has 768 states, 765 states have (on average 2.0) internal successors, (1530), 386 states have internal predecessors, (1530), 382 states have call successors, (382), 382 states have call predecessors, (382), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 957 [2023-02-18 23:46:16,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:46:16,500 INFO L225 Difference]: With dead ends: 1921 [2023-02-18 23:46:16,501 INFO L226 Difference]: Without dead ends: 1920 [2023-02-18 23:46:16,585 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2678 GetRequests, 1149 SyntacticMatches, 381 SemanticMatches, 1148 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 399007 ImplicationChecksByTransitivity, 159.1s TimeCoverageRelationStatistics Valid=366917, Invalid=954433, Unknown=0, NotChecked=0, Total=1321350 [2023-02-18 23:46:16,586 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 10293 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 3457 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10293 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 3459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:46:16,586 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10293 Valid, 46 Invalid, 3459 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 3457 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-02-18 23:46:16,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1920 states. [2023-02-18 23:46:16,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1920 to 1918. [2023-02-18 23:46:16,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1918 states, 1534 states have (on average 1.0006518904823989) internal successors, (1535), 1534 states have internal predecessors, (1535), 383 states have call successors, (383), 383 states have call predecessors, (383), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:46:16,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1918 states to 1918 states and 1918 transitions. [2023-02-18 23:46:16,668 INFO L78 Accepts]: Start accepts. Automaton has 1918 states and 1918 transitions. Word has length 957 [2023-02-18 23:46:16,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:46:16,669 INFO L495 AbstractCegarLoop]: Abstraction has 1918 states and 1918 transitions. [2023-02-18 23:46:16,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 768 states, 765 states have (on average 2.0) internal successors, (1530), 386 states have internal predecessors, (1530), 382 states have call successors, (382), 382 states have call predecessors, (382), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:46:16,670 INFO L276 IsEmpty]: Start isEmpty. Operand 1918 states and 1918 transitions. [2023-02-18 23:46:16,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1918 [2023-02-18 23:46:16,738 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:46:16,739 INFO L195 NwaCegarLoop]: trace histogram [383, 383, 382, 382, 382, 1, 1, 1, 1, 1] [2023-02-18 23:46:16,757 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-02-18 23:46:16,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-02-18 23:46:16,958 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 23:46:16,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:46:16,958 INFO L85 PathProgramCache]: Analyzing trace with hash -798345969, now seen corresponding path program 8 times [2023-02-18 23:46:16,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:46:16,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956655612] [2023-02-18 23:46:16,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:46:16,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:46:17,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:51:30,177 INFO L134 CoverageAnalysis]: Checked inductivity of 365001 backedges. 0 proven. 365001 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:51:30,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:51:30,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956655612] [2023-02-18 23:51:30,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956655612] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:51:30,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1330085534] [2023-02-18 23:51:30,178 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-18 23:51:30,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:51:30,178 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:51:30,180 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) [2023-02-18 23:51:30,181 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-02-18 23:51:32,589 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-18 23:51:32,590 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:51:32,645 INFO L263 TraceCheckSpWp]: Trace formula consists of 3475 conjuncts, 768 conjunts are in the unsatisfiable core [2023-02-18 23:51:32,665 INFO L286 TraceCheckSpWp]: Computing forward predicates...