./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 26d01a9c 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-?-26d01a9 [2023-02-18 08:20:17,119 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-18 08:20:17,120 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-18 08:20:17,147 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-18 08:20:17,148 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-18 08:20:17,151 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-18 08:20:17,153 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-18 08:20:17,155 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-18 08:20:17,157 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-18 08:20:17,163 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-18 08:20:17,164 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-18 08:20:17,166 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-18 08:20:17,167 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-18 08:20:17,171 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-18 08:20:17,173 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-18 08:20:17,174 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-18 08:20:17,175 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-18 08:20:17,176 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-18 08:20:17,177 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-18 08:20:17,181 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-18 08:20:17,183 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-18 08:20:17,185 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-18 08:20:17,186 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-18 08:20:17,187 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-18 08:20:17,192 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-18 08:20:17,192 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-18 08:20:17,193 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-18 08:20:17,194 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-18 08:20:17,194 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-18 08:20:17,195 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-18 08:20:17,196 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-18 08:20:17,196 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-18 08:20:17,197 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-18 08:20:17,199 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-18 08:20:17,199 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-18 08:20:17,199 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-18 08:20:17,200 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-18 08:20:17,200 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-18 08:20:17,200 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-18 08:20:17,201 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-18 08:20:17,202 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-18 08:20:17,203 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-02-18 08:20:17,236 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-18 08:20:17,237 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-18 08:20:17,238 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-18 08:20:17,238 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-18 08:20:17,239 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-18 08:20:17,239 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-18 08:20:17,239 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-18 08:20:17,240 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-18 08:20:17,240 INFO L138 SettingsManager]: * Use SBE=true [2023-02-18 08:20:17,240 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-18 08:20:17,241 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-18 08:20:17,241 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-18 08:20:17,241 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-18 08:20:17,241 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-18 08:20:17,241 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-18 08:20:17,242 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-18 08:20:17,242 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-02-18 08:20:17,242 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-18 08:20:17,242 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-18 08:20:17,242 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-18 08:20:17,242 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-18 08:20:17,243 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-18 08:20:17,243 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-18 08:20:17,243 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 08:20:17,243 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-18 08:20:17,243 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-18 08:20:17,244 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-18 08:20:17,244 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-18 08:20:17,244 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-18 08:20:17,244 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-18 08:20:17,244 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-18 08:20:17,245 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-18 08:20:17,245 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-18 08:20:17,245 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-18 08:20:17,245 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fc483b08189ee3c98902d05e6dbaf5e8d67294309bb86f0f1cb0c68cd8f4471f [2023-02-18 08:20:17,460 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-18 08:20:17,486 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-18 08:20:17,488 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-18 08:20:17,489 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-18 08:20:17,489 INFO L275 PluginConnector]: CDTParser initialized [2023-02-18 08:20:17,490 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-numeric/recHanoi02-1.c [2023-02-18 08:20:18,647 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-18 08:20:18,833 INFO L351 CDTParser]: Found 1 translation units. [2023-02-18 08:20:18,834 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-numeric/recHanoi02-1.c [2023-02-18 08:20:18,838 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e58dfeb2/cee963700aab4f41ae9cc113b917531d/FLAGe6e2de9db [2023-02-18 08:20:18,849 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e58dfeb2/cee963700aab4f41ae9cc113b917531d [2023-02-18 08:20:18,851 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-18 08:20:18,853 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-18 08:20:18,854 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-18 08:20:18,854 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-18 08:20:18,858 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-18 08:20:18,859 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 08:20:18" (1/1) ... [2023-02-18 08:20:18,860 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f3964e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:20:18, skipping insertion in model container [2023-02-18 08:20:18,860 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 08:20:18" (1/1) ... [2023-02-18 08:20:18,866 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-18 08:20:18,878 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-18 08:20:19,011 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 08:20:19,011 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 08:20:19,023 INFO L203 MainTranslator]: Completed pre-run [2023-02-18 08:20:19,038 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 08:20:19,040 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 08:20:19,051 INFO L208 MainTranslator]: Completed translation [2023-02-18 08:20:19,051 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:20:19 WrapperNode [2023-02-18 08:20:19,051 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-18 08:20:19,053 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-18 08:20:19,053 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-18 08:20:19,053 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-18 08:20:19,059 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:20:19" (1/1) ... [2023-02-18 08:20:19,064 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:20:19" (1/1) ... [2023-02-18 08:20:19,077 INFO L138 Inliner]: procedures = 13, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 26 [2023-02-18 08:20:19,077 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-18 08:20:19,078 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-18 08:20:19,078 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-18 08:20:19,078 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-18 08:20:19,084 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:20:19" (1/1) ... [2023-02-18 08:20:19,085 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:20:19" (1/1) ... [2023-02-18 08:20:19,093 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:20:19" (1/1) ... [2023-02-18 08:20:19,093 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:20:19" (1/1) ... [2023-02-18 08:20:19,098 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:20:19" (1/1) ... [2023-02-18 08:20:19,100 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:20:19" (1/1) ... [2023-02-18 08:20:19,101 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:20:19" (1/1) ... [2023-02-18 08:20:19,101 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:20:19" (1/1) ... [2023-02-18 08:20:19,106 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-18 08:20:19,108 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-18 08:20:19,108 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-18 08:20:19,108 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-18 08:20:19,109 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:20:19" (1/1) ... [2023-02-18 08:20:19,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 08:20:19,122 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:20:19,138 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 08:20:19,173 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-18 08:20:19,173 INFO L130 BoogieDeclarations]: Found specification of procedure hanoi [2023-02-18 08:20:19,174 INFO L138 BoogieDeclarations]: Found implementation of procedure hanoi [2023-02-18 08:20:19,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-18 08:20:19,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-18 08:20:19,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-18 08:20:19,161 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 08:20:19,224 INFO L235 CfgBuilder]: Building ICFG [2023-02-18 08:20:19,226 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-18 08:20:19,339 INFO L276 CfgBuilder]: Performing block encoding [2023-02-18 08:20:19,344 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-18 08:20:19,345 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2023-02-18 08:20:19,346 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 08:20:19 BoogieIcfgContainer [2023-02-18 08:20:19,346 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-18 08:20:19,348 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-18 08:20:19,349 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-18 08:20:19,351 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-18 08:20:19,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.02 08:20:18" (1/3) ... [2023-02-18 08:20:19,352 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@299544cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 08:20:19, skipping insertion in model container [2023-02-18 08:20:19,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:20:19" (2/3) ... [2023-02-18 08:20:19,353 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@299544cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 08:20:19, skipping insertion in model container [2023-02-18 08:20:19,353 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 08:20:19" (3/3) ... [2023-02-18 08:20:19,354 INFO L112 eAbstractionObserver]: Analyzing ICFG recHanoi02-1.c [2023-02-18 08:20:19,381 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-18 08:20:19,382 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-02-18 08:20:19,449 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-18 08:20:19,459 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;@489aadb6, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-18 08:20:19,459 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-02-18 08:20:19,463 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 08:20:19,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-02-18 08:20:19,471 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 08:20:19,472 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-02-18 08:20:19,472 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 08:20:19,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:20:19,477 INFO L85 PathProgramCache]: Analyzing trace with hash -1325924785, now seen corresponding path program 1 times [2023-02-18 08:20:19,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:20:19,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382062511] [2023-02-18 08:20:19,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:20:19,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:20:19,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:20:19,653 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 08:20:19,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 08:20:19,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382062511] [2023-02-18 08:20:19,657 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382062511] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 08:20:19,657 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 08:20:19,657 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-18 08:20:19,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538201048] [2023-02-18 08:20:19,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 08:20:19,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-18 08:20:19,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 08:20:19,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-18 08:20:19,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-18 08:20:19,691 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 08:20:19,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 08:20:19,796 INFO L93 Difference]: Finished difference Result 54 states and 57 transitions. [2023-02-18 08:20:19,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-18 08:20:19,799 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 08:20:19,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 08:20:19,805 INFO L225 Difference]: With dead ends: 54 [2023-02-18 08:20:19,805 INFO L226 Difference]: Without dead ends: 39 [2023-02-18 08:20:19,807 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 08:20:19,810 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, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 08:20:19,811 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 86 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 08:20:19,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2023-02-18 08:20:19,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 32. [2023-02-18 08:20:19,840 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 08:20:19,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 38 transitions. [2023-02-18 08:20:19,843 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 38 transitions. Word has length 7 [2023-02-18 08:20:19,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 08:20:19,843 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 38 transitions. [2023-02-18 08:20:19,844 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 08:20:19,844 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 38 transitions. [2023-02-18 08:20:19,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-02-18 08:20:19,845 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 08:20:19,845 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 08:20:19,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-18 08:20:19,846 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 08:20:19,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:20:19,847 INFO L85 PathProgramCache]: Analyzing trace with hash 1846004663, now seen corresponding path program 1 times [2023-02-18 08:20:19,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:20:19,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314734188] [2023-02-18 08:20:19,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:20:19,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:20:19,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:20:19,930 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 08:20:19,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 08:20:19,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314734188] [2023-02-18 08:20:19,931 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314734188] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 08:20:19,931 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 08:20:19,931 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-18 08:20:19,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986310728] [2023-02-18 08:20:19,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 08:20:19,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-18 08:20:19,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 08:20:19,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-18 08:20:19,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-18 08:20:19,933 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 08:20:19,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 08:20:19,957 INFO L93 Difference]: Finished difference Result 32 states and 38 transitions. [2023-02-18 08:20:19,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-18 08:20:19,957 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 08:20:19,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 08:20:19,958 INFO L225 Difference]: With dead ends: 32 [2023-02-18 08:20:19,958 INFO L226 Difference]: Without dead ends: 31 [2023-02-18 08:20:19,959 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 08:20:19,960 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 08:20:19,961 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 08:20:19,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2023-02-18 08:20:19,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2023-02-18 08:20:19,965 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 08:20:19,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 36 transitions. [2023-02-18 08:20:19,966 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 36 transitions. Word has length 8 [2023-02-18 08:20:19,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 08:20:19,966 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 36 transitions. [2023-02-18 08:20:19,966 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 08:20:19,967 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 36 transitions. [2023-02-18 08:20:19,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-02-18 08:20:19,967 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 08:20:19,967 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 08:20:19,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-18 08:20:19,968 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 08:20:19,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:20:19,969 INFO L85 PathProgramCache]: Analyzing trace with hash 1230855953, now seen corresponding path program 1 times [2023-02-18 08:20:19,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:20:19,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301825632] [2023-02-18 08:20:19,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:20:19,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:20:19,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:20:20,037 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 08:20:20,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 08:20:20,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301825632] [2023-02-18 08:20:20,038 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301825632] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 08:20:20,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1315574623] [2023-02-18 08:20:20,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:20:20,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 08:20:20,039 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:20:20,041 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 08:20:20,079 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 08:20:20,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:20:20,093 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-18 08:20:20,096 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:20:20,177 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 08:20:20,179 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 08:20:20,230 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 08:20:20,230 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1315574623] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 08:20:20,231 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 08:20:20,231 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2023-02-18 08:20:20,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297993744] [2023-02-18 08:20:20,231 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 08:20:20,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-02-18 08:20:20,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 08:20:20,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-02-18 08:20:20,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2023-02-18 08:20:20,234 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 08:20:20,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 08:20:20,388 INFO L93 Difference]: Finished difference Result 92 states and 99 transitions. [2023-02-18 08:20:20,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-02-18 08:20:20,389 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 08:20:20,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 08:20:20,390 INFO L225 Difference]: With dead ends: 92 [2023-02-18 08:20:20,390 INFO L226 Difference]: Without dead ends: 91 [2023-02-18 08:20:20,391 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 08:20:20,392 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 192 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 08:20:20,393 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 08:20:20,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2023-02-18 08:20:20,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 67. [2023-02-18 08:20:20,402 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 08:20:20,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 87 transitions. [2023-02-18 08:20:20,404 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 87 transitions. Word has length 12 [2023-02-18 08:20:20,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 08:20:20,405 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 87 transitions. [2023-02-18 08:20:20,405 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 08:20:20,405 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 87 transitions. [2023-02-18 08:20:20,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-02-18 08:20:20,406 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 08:20:20,406 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 08:20:20,416 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 08:20:20,611 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 08:20:20,611 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 08:20:20,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:20:20,612 INFO L85 PathProgramCache]: Analyzing trace with hash -2001544150, now seen corresponding path program 1 times [2023-02-18 08:20:20,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:20:20,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552849746] [2023-02-18 08:20:20,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:20:20,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:20:20,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:20:20,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-02-18 08:20:20,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:20:20,677 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 08:20:20,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 08:20:20,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552849746] [2023-02-18 08:20:20,678 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552849746] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 08:20:20,678 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 08:20:20,678 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-18 08:20:20,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492801154] [2023-02-18 08:20:20,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 08:20:20,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-18 08:20:20,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 08:20:20,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-18 08:20:20,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-18 08:20:20,680 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 08:20:20,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 08:20:20,704 INFO L93 Difference]: Finished difference Result 104 states and 140 transitions. [2023-02-18 08:20:20,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-18 08:20:20,704 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 08:20:20,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 08:20:20,706 INFO L225 Difference]: With dead ends: 104 [2023-02-18 08:20:20,706 INFO L226 Difference]: Without dead ends: 93 [2023-02-18 08:20:20,707 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 08:20:20,708 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 08:20:20,708 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 08:20:20,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2023-02-18 08:20:20,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2023-02-18 08:20:20,722 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 08:20:20,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 113 transitions. [2023-02-18 08:20:20,724 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 113 transitions. Word has length 15 [2023-02-18 08:20:20,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 08:20:20,725 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 113 transitions. [2023-02-18 08:20:20,725 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 08:20:20,725 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 113 transitions. [2023-02-18 08:20:20,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-02-18 08:20:20,726 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 08:20:20,726 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 1, 1, 1, 1, 1] [2023-02-18 08:20:20,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-02-18 08:20:20,727 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 08:20:20,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:20:20,727 INFO L85 PathProgramCache]: Analyzing trace with hash -1886011185, now seen corresponding path program 2 times [2023-02-18 08:20:20,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:20:20,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545872609] [2023-02-18 08:20:20,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:20:20,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:20:20,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:20:20,884 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 08:20:20,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 08:20:20,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545872609] [2023-02-18 08:20:20,884 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545872609] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 08:20:20,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2120622207] [2023-02-18 08:20:20,885 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-18 08:20:20,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 08:20:20,885 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:20:20,886 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 08:20:20,889 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 08:20:20,932 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-18 08:20:20,932 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 08:20:20,935 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 12 conjunts are in the unsatisfiable core [2023-02-18 08:20:20,936 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:20:21,013 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 08:20:21,013 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 08:20:21,163 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 08:20:21,163 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2120622207] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 08:20:21,163 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 08:20:21,163 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2023-02-18 08:20:21,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375437048] [2023-02-18 08:20:21,164 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 08:20:21,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-02-18 08:20:21,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 08:20:21,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-02-18 08:20:21,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=416, Unknown=0, NotChecked=0, Total=552 [2023-02-18 08:20:21,165 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 08:20:21,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 08:20:21,519 INFO L93 Difference]: Finished difference Result 248 states and 263 transitions. [2023-02-18 08:20:21,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-02-18 08:20:21,520 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 08:20:21,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 08:20:21,523 INFO L225 Difference]: With dead ends: 248 [2023-02-18 08:20:21,524 INFO L226 Difference]: Without dead ends: 247 [2023-02-18 08:20:21,525 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 08:20:21,528 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 08:20:21,528 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 08:20:21,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2023-02-18 08:20:21,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 207. [2023-02-18 08:20:21,559 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 08:20:21,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 257 transitions. [2023-02-18 08:20:21,562 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 257 transitions. Word has length 27 [2023-02-18 08:20:21,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 08:20:21,562 INFO L495 AbstractCegarLoop]: Abstraction has 207 states and 257 transitions. [2023-02-18 08:20:21,563 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 08:20:21,563 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 257 transitions. [2023-02-18 08:20:21,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-02-18 08:20:21,564 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 08:20:21,564 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 08:20:21,572 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-02-18 08:20:21,768 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 08:20:21,769 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 08:20:21,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:20:21,770 INFO L85 PathProgramCache]: Analyzing trace with hash 907320634, now seen corresponding path program 1 times [2023-02-18 08:20:21,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:20:21,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650287483] [2023-02-18 08:20:21,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:20:21,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:20:21,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:20:21,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-02-18 08:20:21,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:20:21,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 08:20:21,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:20:21,895 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 08:20:21,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 08:20:21,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650287483] [2023-02-18 08:20:21,895 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650287483] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 08:20:21,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [827345927] [2023-02-18 08:20:21,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:20:21,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 08:20:21,896 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:20:21,897 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 08:20:21,926 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 08:20:21,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:20:21,939 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-18 08:20:21,941 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:20:21,971 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 08:20:21,971 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-18 08:20:21,972 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [827345927] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 08:20:21,972 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-18 08:20:21,972 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2023-02-18 08:20:21,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764169870] [2023-02-18 08:20:21,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 08:20:21,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-18 08:20:21,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 08:20:21,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-18 08:20:21,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-02-18 08:20:21,978 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 08:20:22,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 08:20:22,011 INFO L93 Difference]: Finished difference Result 207 states and 257 transitions. [2023-02-18 08:20:22,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-18 08:20:22,011 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 08:20:22,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 08:20:22,012 INFO L225 Difference]: With dead ends: 207 [2023-02-18 08:20:22,013 INFO L226 Difference]: Without dead ends: 205 [2023-02-18 08:20:22,013 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 08:20:22,015 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 08:20:22,015 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 08:20:22,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2023-02-18 08:20:22,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 205. [2023-02-18 08:20:22,027 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 08:20:22,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 235 transitions. [2023-02-18 08:20:22,036 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 235 transitions. Word has length 27 [2023-02-18 08:20:22,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 08:20:22,036 INFO L495 AbstractCegarLoop]: Abstraction has 205 states and 235 transitions. [2023-02-18 08:20:22,036 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 08:20:22,037 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 235 transitions. [2023-02-18 08:20:22,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-02-18 08:20:22,037 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 08:20:22,037 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 08:20:22,044 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 08:20:22,241 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 08:20:22,241 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting hanoiErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 08:20:22,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:20:22,242 INFO L85 PathProgramCache]: Analyzing trace with hash -1937831374, now seen corresponding path program 1 times [2023-02-18 08:20:22,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:20:22,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236576450] [2023-02-18 08:20:22,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:20:22,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:20:22,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:20:22,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-02-18 08:20:22,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:20:22,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 08:20:22,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:20:22,309 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 08:20:22,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 08:20:22,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236576450] [2023-02-18 08:20:22,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236576450] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 08:20:22,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [643915626] [2023-02-18 08:20:22,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:20:22,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 08:20:22,310 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:20:22,312 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 08:20:22,315 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 08:20:22,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:20:22,352 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-18 08:20:22,353 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:20:22,381 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 08:20:22,382 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 08:20:22,425 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 08:20:22,426 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [643915626] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 08:20:22,427 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 08:20:22,427 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-02-18 08:20:22,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696450298] [2023-02-18 08:20:22,427 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 08:20:22,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-02-18 08:20:22,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 08:20:22,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-02-18 08:20:22,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-02-18 08:20:22,429 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 08:20:22,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 08:20:22,479 INFO L93 Difference]: Finished difference Result 409 states and 494 transitions. [2023-02-18 08:20:22,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-02-18 08:20:22,480 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 08:20:22,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 08:20:22,484 INFO L225 Difference]: With dead ends: 409 [2023-02-18 08:20:22,484 INFO L226 Difference]: Without dead ends: 344 [2023-02-18 08:20:22,485 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 08:20:22,486 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 08:20:22,486 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 08:20:22,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2023-02-18 08:20:22,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 344. [2023-02-18 08:20:22,497 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 08:20:22,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 364 transitions. [2023-02-18 08:20:22,499 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 364 transitions. Word has length 28 [2023-02-18 08:20:22,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 08:20:22,499 INFO L495 AbstractCegarLoop]: Abstraction has 344 states and 364 transitions. [2023-02-18 08:20:22,499 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 08:20:22,499 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 364 transitions. [2023-02-18 08:20:22,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-02-18 08:20:22,506 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 08:20:22,506 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 1, 1, 1, 1, 1] [2023-02-18 08:20:22,511 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 08:20:22,711 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 08:20:22,711 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 08:20:22,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:20:22,712 INFO L85 PathProgramCache]: Analyzing trace with hash 244264079, now seen corresponding path program 3 times [2023-02-18 08:20:22,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:20:22,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068430269] [2023-02-18 08:20:22,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:20:22,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:20:22,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:20:23,086 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 08:20:23,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 08:20:23,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068430269] [2023-02-18 08:20:23,087 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068430269] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 08:20:23,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [146178716] [2023-02-18 08:20:23,087 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-18 08:20:23,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 08:20:23,088 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:20:23,090 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 08:20:23,093 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 08:20:23,137 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2023-02-18 08:20:23,137 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 08:20:23,138 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 24 conjunts are in the unsatisfiable core [2023-02-18 08:20:23,140 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:20:23,372 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 08:20:23,372 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 08:20:23,860 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 08:20:23,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [146178716] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 08:20:23,860 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 08:20:23,861 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2023-02-18 08:20:23,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411760132] [2023-02-18 08:20:23,861 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 08:20:23,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2023-02-18 08:20:23,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 08:20:23,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2023-02-18 08:20:23,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=556, Invalid=1700, Unknown=0, NotChecked=0, Total=2256 [2023-02-18 08:20:23,863 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 08:20:24,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 08:20:24,788 INFO L93 Difference]: Finished difference Result 823 states and 856 transitions. [2023-02-18 08:20:24,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2023-02-18 08:20:24,789 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 08:20:24,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 08:20:24,792 INFO L225 Difference]: With dead ends: 823 [2023-02-18 08:20:24,792 INFO L226 Difference]: Without dead ends: 822 [2023-02-18 08:20:24,795 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 69 SyntacticMatches, 21 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1881 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=2204, Invalid=5278, Unknown=0, NotChecked=0, Total=7482 [2023-02-18 08:20:24,796 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 911 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 188 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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, 0.4s IncrementalHoareTripleChecker+Time [2023-02-18 08:20:24,796 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [913 Valid, 452 Invalid, 652 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [188 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-02-18 08:20:24,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 822 states. [2023-02-18 08:20:24,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 822 to 800. [2023-02-18 08:20:24,812 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 08:20:24,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 800 states to 800 states and 844 transitions. [2023-02-18 08:20:24,815 INFO L78 Accepts]: Start accepts. Automaton has 800 states and 844 transitions. Word has length 57 [2023-02-18 08:20:24,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 08:20:24,816 INFO L495 AbstractCegarLoop]: Abstraction has 800 states and 844 transitions. [2023-02-18 08:20:24,816 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 08:20:24,816 INFO L276 IsEmpty]: Start isEmpty. Operand 800 states and 844 transitions. [2023-02-18 08:20:24,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-02-18 08:20:24,817 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 08:20:24,817 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 08:20:24,828 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-02-18 08:20:25,022 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 08:20:25,023 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting hanoiErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 08:20:25,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:20:25,024 INFO L85 PathProgramCache]: Analyzing trace with hash 841754434, now seen corresponding path program 2 times [2023-02-18 08:20:25,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:20:25,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582202555] [2023-02-18 08:20:25,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:20:25,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:20:25,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:20:25,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-02-18 08:20:25,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:20:25,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 08:20:25,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:20:25,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 08:20:25,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:20:25,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 08:20:25,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:20:25,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 08:20:25,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:20:25,233 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 08:20:25,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 08:20:25,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582202555] [2023-02-18 08:20:25,234 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582202555] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 08:20:25,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [185416785] [2023-02-18 08:20:25,234 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-18 08:20:25,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 08:20:25,234 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:20:25,235 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 08:20:25,269 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 08:20:25,290 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-18 08:20:25,290 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 08:20:25,291 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 11 conjunts are in the unsatisfiable core [2023-02-18 08:20:25,295 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:20:25,337 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 08:20:25,337 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 08:20:25,459 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 08:20:25,459 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [185416785] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 08:20:25,460 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 08:20:25,460 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 23 [2023-02-18 08:20:25,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420810073] [2023-02-18 08:20:25,460 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 08:20:25,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-02-18 08:20:25,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 08:20:25,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-02-18 08:20:25,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2023-02-18 08:20:25,462 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 08:20:25,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 08:20:25,534 INFO L93 Difference]: Finished difference Result 1743 states and 1924 transitions. [2023-02-18 08:20:25,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-02-18 08:20:25,535 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 08:20:25,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 08:20:25,539 INFO L225 Difference]: With dead ends: 1743 [2023-02-18 08:20:25,539 INFO L226 Difference]: Without dead ends: 1439 [2023-02-18 08:20:25,541 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 08:20:25,542 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, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 08:20:25,542 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 71 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 08:20:25,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1439 states. [2023-02-18 08:20:25,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1439 to 1439. [2023-02-18 08:20:25,566 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 08:20:25,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1439 states to 1439 states and 1483 transitions. [2023-02-18 08:20:25,571 INFO L78 Accepts]: Start accepts. Automaton has 1439 states and 1483 transitions. Word has length 64 [2023-02-18 08:20:25,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 08:20:25,571 INFO L495 AbstractCegarLoop]: Abstraction has 1439 states and 1483 transitions. [2023-02-18 08:20:25,571 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 08:20:25,571 INFO L276 IsEmpty]: Start isEmpty. Operand 1439 states and 1483 transitions. [2023-02-18 08:20:25,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-02-18 08:20:25,573 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 08:20:25,573 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 22, 22, 22, 1, 1, 1, 1, 1] [2023-02-18 08:20:25,581 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-02-18 08:20:25,778 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 08:20:25,778 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 08:20:25,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:20:25,779 INFO L85 PathProgramCache]: Analyzing trace with hash 1809372175, now seen corresponding path program 4 times [2023-02-18 08:20:25,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:20:25,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966988857] [2023-02-18 08:20:25,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:20:25,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:20:25,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:20:26,806 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 08:20:26,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 08:20:26,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966988857] [2023-02-18 08:20:26,806 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966988857] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 08:20:26,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [474211260] [2023-02-18 08:20:26,807 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-18 08:20:26,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 08:20:26,807 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:20:26,809 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 08:20:26,818 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 08:20:26,878 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-18 08:20:26,878 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 08:20:26,880 INFO L263 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 48 conjunts are in the unsatisfiable core [2023-02-18 08:20:26,886 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:20:27,600 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 08:20:27,600 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 08:20:29,211 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 08:20:29,211 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [474211260] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 08:20:29,211 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 08:20:29,212 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 95 [2023-02-18 08:20:29,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072757258] [2023-02-18 08:20:29,212 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 08:20:29,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2023-02-18 08:20:29,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 08:20:29,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2023-02-18 08:20:29,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2260, Invalid=6860, Unknown=0, NotChecked=0, Total=9120 [2023-02-18 08:20:29,216 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 08:20:32,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 08:20:32,147 INFO L93 Difference]: Finished difference Result 3406 states and 3475 transitions. [2023-02-18 08:20:32,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 132 states. [2023-02-18 08:20:32,148 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 08:20:32,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 08:20:32,160 INFO L225 Difference]: With dead ends: 3406 [2023-02-18 08:20:32,161 INFO L226 Difference]: Without dead ends: 3405 [2023-02-18 08:20:32,169 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 361 GetRequests, 141 SyntacticMatches, 45 SemanticMatches, 175 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8547 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=9119, Invalid=22033, Unknown=0, NotChecked=0, Total=31152 [2023-02-18 08:20:32,169 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 2716 mSDsluCounter, 835 mSDsCounter, 0 mSdLazyCounter, 901 mSolverCounterSat, 724 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.7s IncrementalHoareTripleChecker+Time [2023-02-18 08:20:32,170 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2718 Valid, 905 Invalid, 1625 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [724 Valid, 901 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-02-18 08:20:32,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3405 states. [2023-02-18 08:20:32,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3405 to 3359. [2023-02-18 08:20:32,223 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 08:20:32,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3359 states to 3359 states and 3451 transitions. [2023-02-18 08:20:32,235 INFO L78 Accepts]: Start accepts. Automaton has 3359 states and 3451 transitions. Word has length 117 [2023-02-18 08:20:32,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 08:20:32,236 INFO L495 AbstractCegarLoop]: Abstraction has 3359 states and 3451 transitions. [2023-02-18 08:20:32,236 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 08:20:32,236 INFO L276 IsEmpty]: Start isEmpty. Operand 3359 states and 3451 transitions. [2023-02-18 08:20:32,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-02-18 08:20:32,241 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 08:20:32,241 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 08:20:32,251 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-02-18 08:20:32,446 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 08:20:32,447 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting hanoiErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 08:20:32,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:20:32,448 INFO L85 PathProgramCache]: Analyzing trace with hash 1057662018, now seen corresponding path program 3 times [2023-02-18 08:20:32,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:20:32,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396243430] [2023-02-18 08:20:32,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:20:32,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:20:32,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:20:32,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-02-18 08:20:32,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:20:32,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 08:20:32,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:20:32,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 08:20:32,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:20:32,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 08:20:33,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:20:33,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 08:20:33,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:20:33,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 08:20:33,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:20:33,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 08:20:33,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:20:33,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 08:20:33,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:20:33,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 08:20:33,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:20:33,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 08:20:33,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:20:33,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 08:20:33,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:20:33,353 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 08:20:33,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 08:20:33,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396243430] [2023-02-18 08:20:33,354 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396243430] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 08:20:33,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [169514261] [2023-02-18 08:20:33,354 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-18 08:20:33,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 08:20:33,354 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:20:33,357 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 08:20:33,371 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 08:20:33,464 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2023-02-18 08:20:33,464 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 08:20:33,466 INFO L263 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 23 conjunts are in the unsatisfiable core [2023-02-18 08:20:33,469 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:20:33,585 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 08:20:33,585 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 08:20:34,160 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 08:20:34,161 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [169514261] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 08:20:34,161 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 08:20:34,161 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 47 [2023-02-18 08:20:34,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130055003] [2023-02-18 08:20:34,162 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 08:20:34,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2023-02-18 08:20:34,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 08:20:34,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2023-02-18 08:20:34,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=599, Invalid=1657, Unknown=0, NotChecked=0, Total=2256 [2023-02-18 08:20:34,164 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 08:20:34,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 08:20:34,350 INFO L93 Difference]: Finished difference Result 7260 states and 7915 transitions. [2023-02-18 08:20:34,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2023-02-18 08:20:34,351 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 08:20:34,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 08:20:34,369 INFO L225 Difference]: With dead ends: 7260 [2023-02-18 08:20:34,369 INFO L226 Difference]: Without dead ends: 5897 [2023-02-18 08:20:34,375 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 08:20:34,375 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 08:20:34,376 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 08:20:34,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5897 states. [2023-02-18 08:20:34,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5897 to 5897. [2023-02-18 08:20:34,468 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 08:20:34,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5897 states to 5897 states and 5989 transitions. [2023-02-18 08:20:34,486 INFO L78 Accepts]: Start accepts. Automaton has 5897 states and 5989 transitions. Word has length 136 [2023-02-18 08:20:34,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 08:20:34,486 INFO L495 AbstractCegarLoop]: Abstraction has 5897 states and 5989 transitions. [2023-02-18 08:20:34,487 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 08:20:34,487 INFO L276 IsEmpty]: Start isEmpty. Operand 5897 states and 5989 transitions. [2023-02-18 08:20:34,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2023-02-18 08:20:34,491 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 08:20:34,492 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 46, 46, 46, 1, 1, 1, 1, 1] [2023-02-18 08:20:34,504 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-02-18 08:20:34,697 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 08:20:34,697 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 08:20:34,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:20:34,698 INFO L85 PathProgramCache]: Analyzing trace with hash 1901552399, now seen corresponding path program 5 times [2023-02-18 08:20:34,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:20:34,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131828171] [2023-02-18 08:20:34,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:20:34,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:20:34,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:20:38,312 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 08:20:38,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 08:20:38,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131828171] [2023-02-18 08:20:38,312 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131828171] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 08:20:38,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [967041250] [2023-02-18 08:20:38,313 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-18 08:20:38,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 08:20:38,313 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:20:38,317 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 08:20:38,324 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 08:20:38,545 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2023-02-18 08:20:38,545 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 08:20:38,549 INFO L263 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 96 conjunts are in the unsatisfiable core [2023-02-18 08:20:38,553 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:20:40,830 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 08:20:40,830 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 08:20:46,426 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 08:20:46,426 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [967041250] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 08:20:46,426 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 08:20:46,426 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96, 96] total 191 [2023-02-18 08:20:46,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236614667] [2023-02-18 08:20:46,426 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 08:20:46,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2023-02-18 08:20:46,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 08:20:46,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2023-02-18 08:20:46,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9124, Invalid=27548, Unknown=0, NotChecked=0, Total=36672 [2023-02-18 08:20:46,438 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 08:20:58,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 08:20:58,313 INFO L93 Difference]: Finished difference Result 13864 states and 14005 transitions. [2023-02-18 08:20:58,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 264 states. [2023-02-18 08:20:58,314 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 08:20:58,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 08:20:58,356 INFO L225 Difference]: With dead ends: 13864 [2023-02-18 08:20:58,357 INFO L226 Difference]: Without dead ends: 13863 [2023-02-18 08:20:58,370 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 733 GetRequests, 285 SyntacticMatches, 93 SemanticMatches, 355 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36351 ImplicationChecksByTransitivity, 15.9s TimeCoverageRelationStatistics Valid=37097, Invalid=89995, Unknown=0, NotChecked=0, Total=127092 [2023-02-18 08:20:58,370 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 6780 mSDsluCounter, 1949 mSDsCounter, 0 mSdLazyCounter, 1883 mSolverCounterSat, 1623 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s 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, 1.4s IncrementalHoareTripleChecker+Time [2023-02-18 08:20:58,371 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6782 Valid, 2091 Invalid, 3506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1623 Valid, 1883 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-02-18 08:20:58,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13863 states. [2023-02-18 08:20:58,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13863 to 13769. [2023-02-18 08:20:58,610 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 08:20:58,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13769 states to 13769 states and 13957 transitions. [2023-02-18 08:20:58,634 INFO L78 Accepts]: Start accepts. Automaton has 13769 states and 13957 transitions. Word has length 237 [2023-02-18 08:20:58,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 08:20:58,635 INFO L495 AbstractCegarLoop]: Abstraction has 13769 states and 13957 transitions. [2023-02-18 08:20:58,635 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 08:20:58,635 INFO L276 IsEmpty]: Start isEmpty. Operand 13769 states and 13957 transitions. [2023-02-18 08:20:58,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2023-02-18 08:20:58,644 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 08:20:58,644 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 08:20:58,653 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 08:20:58,850 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 08:20:58,850 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting hanoiErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 08:20:58,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:20:58,851 INFO L85 PathProgramCache]: Analyzing trace with hash 169614914, now seen corresponding path program 4 times [2023-02-18 08:20:58,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:20:58,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937230000] [2023-02-18 08:20:58,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:20:58,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:20:58,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:20:59,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-02-18 08:20:59,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:20:59,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 08:20:59,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:20:59,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 08:20:59,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:21:00,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 08:21:00,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:21:00,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 08:21:00,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:21:00,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 08:21:00,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:21:01,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 08:21:01,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:21:01,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 08:21:01,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:21:01,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 08:21:01,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:21:01,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 08:21:01,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:21:01,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 08:21:01,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:21:01,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 08:21:01,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:21:02,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 08:21:02,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:21:02,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 08:21:02,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:21:02,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 08:21:02,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:21:02,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 08:21:02,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:21:02,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 08:21:02,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:21:02,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 08:21:02,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:21:02,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 08:21:02,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:21:02,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 08:21:02,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:21:02,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 08:21:02,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:21:02,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 08:21:02,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:21:02,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 08:21:02,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:21:02,838 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 08:21:02,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 08:21:02,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937230000] [2023-02-18 08:21:02,838 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937230000] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 08:21:02,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1266642832] [2023-02-18 08:21:02,839 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-18 08:21:02,839 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 08:21:02,839 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:21:02,840 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 08:21:02,845 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 08:21:03,001 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-18 08:21:03,002 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 08:21:03,005 INFO L263 TraceCheckSpWp]: Trace formula consists of 495 conjuncts, 47 conjunts are in the unsatisfiable core [2023-02-18 08:21:03,009 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:21:03,358 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 08:21:03,358 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 08:21:06,292 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 08:21:06,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1266642832] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 08:21:06,293 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 08:21:06,293 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47, 47] total 63 [2023-02-18 08:21:06,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636783975] [2023-02-18 08:21:06,293 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 08:21:06,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2023-02-18 08:21:06,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 08:21:06,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2023-02-18 08:21:06,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1055, Invalid=2977, Unknown=0, NotChecked=0, Total=4032 [2023-02-18 08:21:06,343 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 08:21:06,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 08:21:06,578 INFO L93 Difference]: Finished difference Result 19058 states and 20005 transitions. [2023-02-18 08:21:06,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2023-02-18 08:21:06,580 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 08:21:06,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 08:21:06,630 INFO L225 Difference]: With dead ends: 19058 [2023-02-18 08:21:06,630 INFO L226 Difference]: Without dead ends: 17589 [2023-02-18 08:21:06,640 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 08:21:06,641 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 08:21:06,641 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 08:21:06,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17589 states. [2023-02-18 08:21:06,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17589 to 17589. [2023-02-18 08:21:06,894 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 08:21:06,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17589 states to 17589 states and 17777 transitions. [2023-02-18 08:21:06,920 INFO L78 Accepts]: Start accepts. Automaton has 17589 states and 17777 transitions. Word has length 280 [2023-02-18 08:21:06,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 08:21:06,921 INFO L495 AbstractCegarLoop]: Abstraction has 17589 states and 17777 transitions. [2023-02-18 08:21:06,922 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 08:21:06,922 INFO L276 IsEmpty]: Start isEmpty. Operand 17589 states and 17777 transitions. [2023-02-18 08:21:06,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 377 [2023-02-18 08:21:06,940 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 08:21:06,940 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 08:21:06,945 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 08:21:07,145 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 08:21:07,146 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting hanoiErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 08:21:07,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:21:07,147 INFO L85 PathProgramCache]: Analyzing trace with hash 1751849538, now seen corresponding path program 5 times [2023-02-18 08:21:07,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:21:07,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653898153] [2023-02-18 08:21:07,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:21:07,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:21:07,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:21:07,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-02-18 08:21:07,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:21:08,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 08:21:08,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:21:09,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 08:21:09,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:21:09,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 08:21:09,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:21:10,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 08:21:10,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:21:10,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 08:21:10,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:21:11,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 08:21:11,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:21:11,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 08:21:11,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:21:12,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 08:21:12,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:21:12,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 08:21:12,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:21:12,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 08:21:12,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:21:13,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 08:21:13,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:21:13,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 08:21:13,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:21:13,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 08:21:13,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:21:13,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 08:21:13,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:21:14,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 08:21:14,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:21:14,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 08:21:14,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:21:14,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 08:21:14,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:21:14,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 08:21:14,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:21:14,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 08:21:14,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:21:14,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 08:21:14,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:21:14,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 08:21:14,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:21:14,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 08:21:14,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:21:14,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 08:21:14,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:21:15,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 08:21:15,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:21:15,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 08:21:15,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:21:15,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 08:21:15,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:21:15,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 08:21:15,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:21:15,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 08:21:15,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:21:15,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 08:21:15,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:21:15,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 08:21:15,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:21:15,355 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 08:21:15,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 08:21:15,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653898153] [2023-02-18 08:21:15,356 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653898153] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 08:21:15,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [236700244] [2023-02-18 08:21:15,356 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-18 08:21:15,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 08:21:15,357 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:21:15,358 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 08:21:15,360 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 08:21:16,039 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 32 check-sat command(s) [2023-02-18 08:21:16,039 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 08:21:16,041 INFO L263 TraceCheckSpWp]: Trace formula consists of 655 conjuncts, 66 conjunts are in the unsatisfiable core [2023-02-18 08:21:16,046 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:21:16,532 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 08:21:16,532 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 08:21:23,040 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 08:21:23,040 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [236700244] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 08:21:23,040 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 08:21:23,040 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 37, 67] total 70 [2023-02-18 08:21:23,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797054116] [2023-02-18 08:21:23,042 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 08:21:23,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 70 states [2023-02-18 08:21:23,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 08:21:23,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2023-02-18 08:21:23,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1164, Invalid=3666, Unknown=0, NotChecked=0, Total=4830 [2023-02-18 08:21:23,046 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 08:21:23,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 08:21:23,672 INFO L93 Difference]: Finished difference Result 17965 states and 18154 transitions. [2023-02-18 08:21:23,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-02-18 08:21:23,673 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 08:21:23,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 08:21:23,678 INFO L225 Difference]: With dead ends: 17965 [2023-02-18 08:21:23,678 INFO L226 Difference]: Without dead ends: 480 [2023-02-18 08:21:23,701 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 880 GetRequests, 684 SyntacticMatches, 96 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2077 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=3311, Invalid=6991, Unknown=0, NotChecked=0, Total=10302 [2023-02-18 08:21:23,702 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 08:21:23,702 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 08:21:23,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2023-02-18 08:21:23,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 478. [2023-02-18 08:21:23,714 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 08:21:23,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 478 transitions. [2023-02-18 08:21:23,715 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 478 transitions. Word has length 376 [2023-02-18 08:21:23,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 08:21:23,715 INFO L495 AbstractCegarLoop]: Abstraction has 478 states and 478 transitions. [2023-02-18 08:21:23,716 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 08:21:23,716 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 478 transitions. [2023-02-18 08:21:23,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 478 [2023-02-18 08:21:23,724 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 08:21:23,724 INFO L195 NwaCegarLoop]: trace histogram [95, 95, 94, 94, 94, 1, 1, 1, 1, 1] [2023-02-18 08:21:23,736 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 08:21:23,933 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 08:21:23,933 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 08:21:23,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:21:23,934 INFO L85 PathProgramCache]: Analyzing trace with hash 1283555599, now seen corresponding path program 6 times [2023-02-18 08:21:23,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:21:23,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957954952] [2023-02-18 08:21:23,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:21:23,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:21:24,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:21:36,759 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 08:21:36,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 08:21:36,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957954952] [2023-02-18 08:21:36,760 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957954952] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 08:21:36,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [918509128] [2023-02-18 08:21:36,760 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-02-18 08:21:36,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 08:21:36,760 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:21:36,761 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 08:21:36,762 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 08:21:38,705 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2023-02-18 08:21:38,705 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 08:21:38,714 INFO L263 TraceCheckSpWp]: Trace formula consists of 883 conjuncts, 192 conjunts are in the unsatisfiable core [2023-02-18 08:21:38,727 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:21:47,037 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 08:21:47,037 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 08:22:08,826 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 08:22:08,826 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [918509128] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 08:22:08,826 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 08:22:08,827 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [192, 192, 192] total 383 [2023-02-18 08:22:08,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34285104] [2023-02-18 08:22:08,827 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 08:22:08,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 384 states [2023-02-18 08:22:08,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 08:22:08,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 384 interpolants. [2023-02-18 08:22:08,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36676, Invalid=110396, Unknown=0, NotChecked=0, Total=147072 [2023-02-18 08:22:08,850 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 08:22:37,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 08:22:37,338 INFO L93 Difference]: Finished difference Result 961 states and 1056 transitions. [2023-02-18 08:22:37,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 384 states. [2023-02-18 08:22:37,339 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 08:22:37,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 08:22:37,341 INFO L225 Difference]: With dead ends: 961 [2023-02-18 08:22:37,341 INFO L226 Difference]: Without dead ends: 960 [2023-02-18 08:22:37,357 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1334 GetRequests, 573 SyntacticMatches, 189 SemanticMatches, 572 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98143 ImplicationChecksByTransitivity, 53.3s TimeCoverageRelationStatistics Valid=91301, Invalid=237601, Unknown=0, NotChecked=0, Total=328902 [2023-02-18 08:22:37,358 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, 0.9s IncrementalHoareTripleChecker+Time [2023-02-18 08:22:37,358 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3317 Valid, 61 Invalid, 1747 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1745 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-02-18 08:22:37,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 960 states. [2023-02-18 08:22:37,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 960 to 958. [2023-02-18 08:22:37,379 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 08:22:37,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 958 states to 958 states and 958 transitions. [2023-02-18 08:22:37,380 INFO L78 Accepts]: Start accepts. Automaton has 958 states and 958 transitions. Word has length 477 [2023-02-18 08:22:37,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 08:22:37,381 INFO L495 AbstractCegarLoop]: Abstraction has 958 states and 958 transitions. [2023-02-18 08:22:37,381 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 08:22:37,382 INFO L276 IsEmpty]: Start isEmpty. Operand 958 states and 958 transitions. [2023-02-18 08:22:37,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 958 [2023-02-18 08:22:37,389 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 08:22:37,389 INFO L195 NwaCegarLoop]: trace histogram [191, 191, 190, 190, 190, 1, 1, 1, 1, 1] [2023-02-18 08:22:37,409 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-02-18 08:22:37,605 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 08:22:37,605 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 08:22:37,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:22:37,606 INFO L85 PathProgramCache]: Analyzing trace with hash -410403569, now seen corresponding path program 7 times [2023-02-18 08:22:37,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:22:37,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714666811] [2023-02-18 08:22:37,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:22:37,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:22:37,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:23:40,706 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 08:23:40,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 08:23:40,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714666811] [2023-02-18 08:23:40,707 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714666811] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 08:23:40,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [576959240] [2023-02-18 08:23:40,707 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-02-18 08:23:40,708 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 08:23:40,708 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:23:40,715 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 08:23:40,717 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 08:23:42,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:23:42,641 INFO L263 TraceCheckSpWp]: Trace formula consists of 1747 conjuncts, 384 conjunts are in the unsatisfiable core [2023-02-18 08:23:42,651 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:24:16,151 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 08:24:16,151 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 08:25:45,269 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 08:25:45,270 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [576959240] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 08:25:45,270 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 08:25:45,270 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [384, 384, 384] total 767 [2023-02-18 08:25:45,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732250250] [2023-02-18 08:25:45,270 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 08:25:45,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 768 states [2023-02-18 08:25:45,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 08:25:45,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 768 interpolants. [2023-02-18 08:25:45,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=147076, Invalid=441980, Unknown=0, NotChecked=0, Total=589056 [2023-02-18 08:25:45,336 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 08:29:34,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 08:29:34,554 INFO L93 Difference]: Finished difference Result 1921 states and 2112 transitions. [2023-02-18 08:29:34,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 768 states. [2023-02-18 08:29:34,555 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 08:29:34,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 08:29:34,562 INFO L225 Difference]: With dead ends: 1921 [2023-02-18 08:29:34,562 INFO L226 Difference]: Without dead ends: 1920 [2023-02-18 08:29:34,638 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2678 GetRequests, 1149 SyntacticMatches, 381 SemanticMatches, 1148 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 399007 ImplicationChecksByTransitivity, 218.4s TimeCoverageRelationStatistics Valid=366917, Invalid=954433, Unknown=0, NotChecked=0, Total=1321350 [2023-02-18 08:29:34,638 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 10293 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 3457 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s 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, 2.4s IncrementalHoareTripleChecker+Time [2023-02-18 08:29:34,639 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10293 Valid, 46 Invalid, 3459 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 3457 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-02-18 08:29:34,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1920 states. [2023-02-18 08:29:34,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1920 to 1918. [2023-02-18 08:29:34,685 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 08:29:34,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1918 states to 1918 states and 1918 transitions. [2023-02-18 08:29:34,687 INFO L78 Accepts]: Start accepts. Automaton has 1918 states and 1918 transitions. Word has length 957 [2023-02-18 08:29:34,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 08:29:34,689 INFO L495 AbstractCegarLoop]: Abstraction has 1918 states and 1918 transitions. [2023-02-18 08:29:34,690 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 08:29:34,690 INFO L276 IsEmpty]: Start isEmpty. Operand 1918 states and 1918 transitions. [2023-02-18 08:29:34,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1918 [2023-02-18 08:29:34,714 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 08:29:34,714 INFO L195 NwaCegarLoop]: trace histogram [383, 383, 382, 382, 382, 1, 1, 1, 1, 1] [2023-02-18 08:29:34,733 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-02-18 08:29:34,929 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 08:29:34,929 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 08:29:34,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:29:34,930 INFO L85 PathProgramCache]: Analyzing trace with hash -798345969, now seen corresponding path program 8 times [2023-02-18 08:29:34,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:29:34,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858535371] [2023-02-18 08:29:34,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:29:34,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:29:35,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat