./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 a31fd051 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-?-a31fd05 [2023-02-15 14:01:16,989 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-15 14:01:16,991 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-15 14:01:17,022 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-15 14:01:17,025 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-15 14:01:17,028 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-15 14:01:17,029 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-15 14:01:17,031 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-15 14:01:17,032 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-15 14:01:17,037 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-15 14:01:17,038 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-15 14:01:17,039 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-15 14:01:17,039 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-15 14:01:17,040 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-15 14:01:17,043 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-15 14:01:17,043 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-15 14:01:17,044 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-15 14:01:17,044 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-15 14:01:17,053 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-15 14:01:17,054 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-15 14:01:17,057 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-15 14:01:17,058 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-15 14:01:17,059 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-15 14:01:17,059 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-15 14:01:17,062 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-15 14:01:17,063 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-15 14:01:17,064 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-15 14:01:17,064 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-15 14:01:17,065 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-15 14:01:17,066 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-15 14:01:17,066 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-15 14:01:17,067 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-15 14:01:17,068 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-15 14:01:17,069 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-15 14:01:17,074 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-15 14:01:17,074 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-15 14:01:17,075 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-15 14:01:17,075 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-15 14:01:17,075 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-15 14:01:17,077 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-15 14:01:17,077 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-15 14:01:17,078 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-02-15 14:01:17,095 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-15 14:01:17,098 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-15 14:01:17,098 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-15 14:01:17,099 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-15 14:01:17,099 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-15 14:01:17,099 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-15 14:01:17,100 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-15 14:01:17,100 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-15 14:01:17,100 INFO L138 SettingsManager]: * Use SBE=true [2023-02-15 14:01:17,101 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-15 14:01:17,101 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-15 14:01:17,101 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-15 14:01:17,101 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-15 14:01:17,102 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-15 14:01:17,102 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-15 14:01:17,102 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-15 14:01:17,102 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-02-15 14:01:17,102 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-15 14:01:17,102 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-15 14:01:17,102 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-15 14:01:17,103 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-15 14:01:17,103 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-15 14:01:17,103 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-15 14:01:17,103 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 14:01:17,103 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-15 14:01:17,103 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-15 14:01:17,103 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-15 14:01:17,104 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-15 14:01:17,104 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-15 14:01:17,104 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-15 14:01:17,104 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-15 14:01:17,104 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-15 14:01:17,104 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-15 14:01:17,104 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-15 14:01:17,105 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fc483b08189ee3c98902d05e6dbaf5e8d67294309bb86f0f1cb0c68cd8f4471f [2023-02-15 14:01:17,277 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-15 14:01:17,293 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-15 14:01:17,295 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-15 14:01:17,295 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-15 14:01:17,296 INFO L275 PluginConnector]: CDTParser initialized [2023-02-15 14:01:17,296 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-numeric/recHanoi02-1.c [2023-02-15 14:01:18,253 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-15 14:01:18,386 INFO L351 CDTParser]: Found 1 translation units. [2023-02-15 14:01:18,387 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-numeric/recHanoi02-1.c [2023-02-15 14:01:18,392 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/58034ce50/253e5ab727c14d33865905beee475d54/FLAGe542f533e [2023-02-15 14:01:18,401 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/58034ce50/253e5ab727c14d33865905beee475d54 [2023-02-15 14:01:18,402 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-15 14:01:18,403 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-15 14:01:18,405 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-15 14:01:18,405 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-15 14:01:18,407 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-15 14:01:18,407 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 02:01:18" (1/1) ... [2023-02-15 14:01:18,409 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@662d7ad3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:01:18, skipping insertion in model container [2023-02-15 14:01:18,410 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 02:01:18" (1/1) ... [2023-02-15 14:01:18,414 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-15 14:01:18,423 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-15 14:01:18,507 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] [2023-02-15 14:01:18,508 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 14:01:18,514 INFO L203 MainTranslator]: Completed pre-run [2023-02-15 14:01:18,522 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] [2023-02-15 14:01:18,523 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 14:01:18,531 INFO L208 MainTranslator]: Completed translation [2023-02-15 14:01:18,531 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:01:18 WrapperNode [2023-02-15 14:01:18,531 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-15 14:01:18,532 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-15 14:01:18,532 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-15 14:01:18,532 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-15 14:01:18,537 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:01:18" (1/1) ... [2023-02-15 14:01:18,541 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:01:18" (1/1) ... [2023-02-15 14:01:18,551 INFO L138 Inliner]: procedures = 13, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 26 [2023-02-15 14:01:18,551 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-15 14:01:18,552 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-15 14:01:18,552 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-15 14:01:18,552 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-15 14:01:18,557 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:01:18" (1/1) ... [2023-02-15 14:01:18,557 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:01:18" (1/1) ... [2023-02-15 14:01:18,565 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:01:18" (1/1) ... [2023-02-15 14:01:18,566 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:01:18" (1/1) ... [2023-02-15 14:01:18,570 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:01:18" (1/1) ... [2023-02-15 14:01:18,572 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:01:18" (1/1) ... [2023-02-15 14:01:18,573 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:01:18" (1/1) ... [2023-02-15 14:01:18,573 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:01:18" (1/1) ... [2023-02-15 14:01:18,578 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-15 14:01:18,579 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-15 14:01:18,579 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-15 14:01:18,579 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-15 14:01:18,580 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:01:18" (1/1) ... [2023-02-15 14:01:18,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 14:01:18,592 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:01:18,602 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) [2023-02-15 14:01:18,612 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 [2023-02-15 14:01:18,662 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-15 14:01:18,662 INFO L130 BoogieDeclarations]: Found specification of procedure hanoi [2023-02-15 14:01:18,662 INFO L138 BoogieDeclarations]: Found implementation of procedure hanoi [2023-02-15 14:01:18,662 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-15 14:01:18,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-15 14:01:18,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-15 14:01:18,699 INFO L235 CfgBuilder]: Building ICFG [2023-02-15 14:01:18,700 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-15 14:01:18,798 INFO L276 CfgBuilder]: Performing block encoding [2023-02-15 14:01:18,812 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-15 14:01:18,813 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2023-02-15 14:01:18,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 02:01:18 BoogieIcfgContainer [2023-02-15 14:01:18,814 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-15 14:01:18,822 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-15 14:01:18,822 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-15 14:01:18,824 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-15 14:01:18,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 02:01:18" (1/3) ... [2023-02-15 14:01:18,825 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37015768 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 02:01:18, skipping insertion in model container [2023-02-15 14:01:18,825 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:01:18" (2/3) ... [2023-02-15 14:01:18,825 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37015768 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 02:01:18, skipping insertion in model container [2023-02-15 14:01:18,825 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 02:01:18" (3/3) ... [2023-02-15 14:01:18,826 INFO L112 eAbstractionObserver]: Analyzing ICFG recHanoi02-1.c [2023-02-15 14:01:18,841 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-15 14:01:18,841 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-02-15 14:01:18,883 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-15 14:01:18,887 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;@6476f6fb, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-15 14:01:18,888 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-02-15 14:01:18,890 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) [2023-02-15 14:01:18,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-02-15 14:01:18,895 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:01:18,895 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:01:18,896 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 14:01:18,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:01:18,900 INFO L85 PathProgramCache]: Analyzing trace with hash -1325924785, now seen corresponding path program 1 times [2023-02-15 14:01:18,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:01:18,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355801767] [2023-02-15 14:01:18,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:01:18,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:01:18,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:01:19,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:01:19,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:01:19,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355801767] [2023-02-15 14:01:19,048 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355801767] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 14:01:19,048 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 14:01:19,048 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-15 14:01:19,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040370551] [2023-02-15 14:01:19,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 14:01:19,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-15 14:01:19,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:01:19,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-15 14:01:19,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-15 14:01:19,077 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) [2023-02-15 14:01:19,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:01:19,162 INFO L93 Difference]: Finished difference Result 54 states and 57 transitions. [2023-02-15 14:01:19,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-15 14:01:19,164 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 [2023-02-15 14:01:19,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:01:19,168 INFO L225 Difference]: With dead ends: 54 [2023-02-15 14:01:19,168 INFO L226 Difference]: Without dead ends: 39 [2023-02-15 14:01:19,170 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 [2023-02-15 14:01:19,173 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 36 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 14:01:19,173 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 86 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 14:01:19,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2023-02-15 14:01:19,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 32. [2023-02-15 14:01:19,196 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) [2023-02-15 14:01:19,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 38 transitions. [2023-02-15 14:01:19,197 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 38 transitions. Word has length 7 [2023-02-15 14:01:19,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:01:19,198 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 38 transitions. [2023-02-15 14:01:19,198 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) [2023-02-15 14:01:19,198 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 38 transitions. [2023-02-15 14:01:19,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-02-15 14:01:19,198 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:01:19,199 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:01:19,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-15 14:01:19,199 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 14:01:19,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:01:19,200 INFO L85 PathProgramCache]: Analyzing trace with hash 1846004663, now seen corresponding path program 1 times [2023-02-15 14:01:19,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:01:19,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107477249] [2023-02-15 14:01:19,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:01:19,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:01:19,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:01:19,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:01:19,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:01:19,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107477249] [2023-02-15 14:01:19,258 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107477249] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 14:01:19,258 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 14:01:19,258 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-15 14:01:19,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248668886] [2023-02-15 14:01:19,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 14:01:19,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-15 14:01:19,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:01:19,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-15 14:01:19,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-15 14:01:19,260 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) [2023-02-15 14:01:19,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:01:19,296 INFO L93 Difference]: Finished difference Result 32 states and 38 transitions. [2023-02-15 14:01:19,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-15 14:01:19,297 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 [2023-02-15 14:01:19,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:01:19,298 INFO L225 Difference]: With dead ends: 32 [2023-02-15 14:01:19,300 INFO L226 Difference]: Without dead ends: 31 [2023-02-15 14:01:19,300 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 [2023-02-15 14:01:19,301 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 [2023-02-15 14:01:19,302 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] [2023-02-15 14:01:19,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2023-02-15 14:01:19,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2023-02-15 14:01:19,308 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) [2023-02-15 14:01:19,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 36 transitions. [2023-02-15 14:01:19,309 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 36 transitions. Word has length 8 [2023-02-15 14:01:19,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:01:19,309 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 36 transitions. [2023-02-15 14:01:19,310 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) [2023-02-15 14:01:19,310 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 36 transitions. [2023-02-15 14:01:19,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-02-15 14:01:19,310 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:01:19,310 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:01:19,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-15 14:01:19,311 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 14:01:19,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:01:19,311 INFO L85 PathProgramCache]: Analyzing trace with hash 1230855953, now seen corresponding path program 1 times [2023-02-15 14:01:19,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:01:19,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196775475] [2023-02-15 14:01:19,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:01:19,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:01:19,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:01:19,403 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:01:19,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:01:19,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196775475] [2023-02-15 14:01:19,403 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196775475] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 14:01:19,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [354234079] [2023-02-15 14:01:19,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:01:19,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:01:19,404 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:01:19,406 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) [2023-02-15 14:01:19,418 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-15 14:01:19,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:01:19,446 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-15 14:01:19,449 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:01:19,507 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:01:19,508 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 14:01:19,578 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:01:19,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [354234079] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 14:01:19,579 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 14:01:19,579 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2023-02-15 14:01:19,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524676455] [2023-02-15 14:01:19,582 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 14:01:19,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-02-15 14:01:19,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:01:19,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-02-15 14:01:19,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2023-02-15 14:01:19,585 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) [2023-02-15 14:01:19,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:01:19,736 INFO L93 Difference]: Finished difference Result 92 states and 99 transitions. [2023-02-15 14:01:19,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-02-15 14:01:19,737 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 [2023-02-15 14:01:19,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:01:19,741 INFO L225 Difference]: With dead ends: 92 [2023-02-15 14:01:19,741 INFO L226 Difference]: Without dead ends: 91 [2023-02-15 14:01:19,742 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2023-02-15 14:01:19,744 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 [2023-02-15 14:01:19,745 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] [2023-02-15 14:01:19,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2023-02-15 14:01:19,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 67. [2023-02-15 14:01:19,763 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) [2023-02-15 14:01:19,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 87 transitions. [2023-02-15 14:01:19,765 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 87 transitions. Word has length 12 [2023-02-15 14:01:19,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:01:19,765 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 87 transitions. [2023-02-15 14:01:19,765 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) [2023-02-15 14:01:19,766 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 87 transitions. [2023-02-15 14:01:19,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-02-15 14:01:19,766 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:01:19,766 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:01:19,775 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-02-15 14:01:19,970 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 [2023-02-15 14:01:19,971 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 14:01:19,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:01:19,971 INFO L85 PathProgramCache]: Analyzing trace with hash -2001544150, now seen corresponding path program 1 times [2023-02-15 14:01:19,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:01:19,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194753332] [2023-02-15 14:01:19,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:01:19,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:01:19,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:01:20,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-02-15 14:01:20,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:01:20,047 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-02-15 14:01:20,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:01:20,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194753332] [2023-02-15 14:01:20,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194753332] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 14:01:20,050 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 14:01:20,050 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-15 14:01:20,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91664369] [2023-02-15 14:01:20,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 14:01:20,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 14:01:20,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:01:20,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 14:01:20,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-15 14:01:20,054 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) [2023-02-15 14:01:20,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:01:20,078 INFO L93 Difference]: Finished difference Result 104 states and 140 transitions. [2023-02-15 14:01:20,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-15 14:01:20,078 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 [2023-02-15 14:01:20,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:01:20,081 INFO L225 Difference]: With dead ends: 104 [2023-02-15 14:01:20,081 INFO L226 Difference]: Without dead ends: 93 [2023-02-15 14:01:20,082 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 [2023-02-15 14:01:20,082 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 [2023-02-15 14:01:20,083 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] [2023-02-15 14:01:20,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2023-02-15 14:01:20,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2023-02-15 14:01:20,094 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) [2023-02-15 14:01:20,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 113 transitions. [2023-02-15 14:01:20,098 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 113 transitions. Word has length 15 [2023-02-15 14:01:20,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:01:20,098 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 113 transitions. [2023-02-15 14:01:20,098 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) [2023-02-15 14:01:20,099 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 113 transitions. [2023-02-15 14:01:20,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-02-15 14:01:20,099 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:01:20,099 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 1, 1, 1, 1, 1] [2023-02-15 14:01:20,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-02-15 14:01:20,100 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 14:01:20,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:01:20,101 INFO L85 PathProgramCache]: Analyzing trace with hash -1886011185, now seen corresponding path program 2 times [2023-02-15 14:01:20,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:01:20,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680001909] [2023-02-15 14:01:20,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:01:20,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:01:20,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:01:20,268 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:01:20,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:01:20,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680001909] [2023-02-15 14:01:20,269 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680001909] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 14:01:20,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [739173894] [2023-02-15 14:01:20,269 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-15 14:01:20,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:01:20,269 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:01:20,270 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) [2023-02-15 14:01:20,272 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-15 14:01:20,298 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-15 14:01:20,298 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 14:01:20,299 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 12 conjunts are in the unsatisfiable core [2023-02-15 14:01:20,300 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:01:20,353 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:01:20,353 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 14:01:20,502 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:01:20,503 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [739173894] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 14:01:20,503 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 14:01:20,503 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2023-02-15 14:01:20,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148049818] [2023-02-15 14:01:20,503 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 14:01:20,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-02-15 14:01:20,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:01:20,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-02-15 14:01:20,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=416, Unknown=0, NotChecked=0, Total=552 [2023-02-15 14:01:20,505 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) [2023-02-15 14:01:20,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:01:20,843 INFO L93 Difference]: Finished difference Result 248 states and 263 transitions. [2023-02-15 14:01:20,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-02-15 14:01:20,844 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 [2023-02-15 14:01:20,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:01:20,846 INFO L225 Difference]: With dead ends: 248 [2023-02-15 14:01:20,846 INFO L226 Difference]: Without dead ends: 247 [2023-02-15 14:01:20,847 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 41 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 314 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=515, Invalid=1207, Unknown=0, NotChecked=0, Total=1722 [2023-02-15 14:01:20,847 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, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 14:01:20,847 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [493 Valid, 275 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 14:01:20,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2023-02-15 14:01:20,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 207. [2023-02-15 14:01:20,862 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) [2023-02-15 14:01:20,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 257 transitions. [2023-02-15 14:01:20,864 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 257 transitions. Word has length 27 [2023-02-15 14:01:20,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:01:20,865 INFO L495 AbstractCegarLoop]: Abstraction has 207 states and 257 transitions. [2023-02-15 14:01:20,865 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) [2023-02-15 14:01:20,865 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 257 transitions. [2023-02-15 14:01:20,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-02-15 14:01:20,868 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:01:20,868 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:01:20,873 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-02-15 14:01:21,069 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 [2023-02-15 14:01:21,069 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 14:01:21,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:01:21,070 INFO L85 PathProgramCache]: Analyzing trace with hash 907320634, now seen corresponding path program 1 times [2023-02-15 14:01:21,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:01:21,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569481523] [2023-02-15 14:01:21,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:01:21,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:01:21,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:01:21,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-02-15 14:01:21,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:01:21,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-15 14:01:21,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:01:21,149 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-02-15 14:01:21,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:01:21,150 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569481523] [2023-02-15 14:01:21,150 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569481523] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 14:01:21,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1819461633] [2023-02-15 14:01:21,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:01:21,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:01:21,151 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:01:21,152 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) [2023-02-15 14:01:21,154 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-02-15 14:01:21,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:01:21,179 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-15 14:01:21,180 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:01:21,206 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-02-15 14:01:21,206 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-15 14:01:21,206 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1819461633] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 14:01:21,206 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-15 14:01:21,206 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2023-02-15 14:01:21,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056002810] [2023-02-15 14:01:21,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 14:01:21,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-15 14:01:21,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:01:21,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-15 14:01:21,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-02-15 14:01:21,208 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) [2023-02-15 14:01:21,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:01:21,235 INFO L93 Difference]: Finished difference Result 207 states and 257 transitions. [2023-02-15 14:01:21,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-15 14:01:21,235 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 [2023-02-15 14:01:21,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:01:21,236 INFO L225 Difference]: With dead ends: 207 [2023-02-15 14:01:21,237 INFO L226 Difference]: Without dead ends: 205 [2023-02-15 14:01:21,237 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-02-15 14:01:21,237 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 [2023-02-15 14:01:21,238 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] [2023-02-15 14:01:21,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2023-02-15 14:01:21,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 205. [2023-02-15 14:01:21,246 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) [2023-02-15 14:01:21,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 235 transitions. [2023-02-15 14:01:21,247 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 235 transitions. Word has length 27 [2023-02-15 14:01:21,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:01:21,247 INFO L495 AbstractCegarLoop]: Abstraction has 205 states and 235 transitions. [2023-02-15 14:01:21,247 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) [2023-02-15 14:01:21,247 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 235 transitions. [2023-02-15 14:01:21,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-02-15 14:01:21,248 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:01:21,248 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:01:21,255 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-02-15 14:01:21,452 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 [2023-02-15 14:01:21,452 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting hanoiErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 14:01:21,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:01:21,453 INFO L85 PathProgramCache]: Analyzing trace with hash -1937831374, now seen corresponding path program 1 times [2023-02-15 14:01:21,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:01:21,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913906908] [2023-02-15 14:01:21,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:01:21,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:01:21,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:01:21,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-02-15 14:01:21,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:01:21,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-15 14:01:21,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:01:21,511 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-02-15 14:01:21,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:01:21,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913906908] [2023-02-15 14:01:21,512 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913906908] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 14:01:21,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1789667669] [2023-02-15 14:01:21,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:01:21,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:01:21,513 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:01:21,526 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) [2023-02-15 14:01:21,527 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-02-15 14:01:21,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:01:21,552 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-15 14:01:21,553 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:01:21,580 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-02-15 14:01:21,580 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 14:01:21,656 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-02-15 14:01:21,657 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1789667669] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 14:01:21,657 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 14:01:21,657 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-02-15 14:01:21,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697389879] [2023-02-15 14:01:21,657 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 14:01:21,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-02-15 14:01:21,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:01:21,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-02-15 14:01:21,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-02-15 14:01:21,658 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) [2023-02-15 14:01:21,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:01:21,696 INFO L93 Difference]: Finished difference Result 409 states and 494 transitions. [2023-02-15 14:01:21,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-02-15 14:01:21,696 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 [2023-02-15 14:01:21,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:01:21,698 INFO L225 Difference]: With dead ends: 409 [2023-02-15 14:01:21,698 INFO L226 Difference]: Without dead ends: 344 [2023-02-15 14:01:21,699 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-02-15 14:01:21,699 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 [2023-02-15 14:01:21,699 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] [2023-02-15 14:01:21,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2023-02-15 14:01:21,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 344. [2023-02-15 14:01:21,708 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) [2023-02-15 14:01:21,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 364 transitions. [2023-02-15 14:01:21,709 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 364 transitions. Word has length 28 [2023-02-15 14:01:21,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:01:21,710 INFO L495 AbstractCegarLoop]: Abstraction has 344 states and 364 transitions. [2023-02-15 14:01:21,710 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) [2023-02-15 14:01:21,710 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 364 transitions. [2023-02-15 14:01:21,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-02-15 14:01:21,711 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:01:21,711 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 1, 1, 1, 1, 1] [2023-02-15 14:01:21,718 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-02-15 14:01:21,916 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 [2023-02-15 14:01:21,916 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 14:01:21,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:01:21,917 INFO L85 PathProgramCache]: Analyzing trace with hash 244264079, now seen corresponding path program 3 times [2023-02-15 14:01:21,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:01:21,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934598664] [2023-02-15 14:01:21,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:01:21,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:01:21,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:01:22,226 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:01:22,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:01:22,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934598664] [2023-02-15 14:01:22,226 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934598664] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 14:01:22,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [733149716] [2023-02-15 14:01:22,226 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-15 14:01:22,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:01:22,227 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:01:22,228 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) [2023-02-15 14:01:22,230 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-02-15 14:01:22,267 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2023-02-15 14:01:22,268 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 14:01:22,268 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 24 conjunts are in the unsatisfiable core [2023-02-15 14:01:22,272 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:01:22,347 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:01:22,348 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 14:01:22,788 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:01:22,788 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [733149716] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 14:01:22,789 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 14:01:22,789 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2023-02-15 14:01:22,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438373982] [2023-02-15 14:01:22,789 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 14:01:22,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2023-02-15 14:01:22,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:01:22,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2023-02-15 14:01:22,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=556, Invalid=1700, Unknown=0, NotChecked=0, Total=2256 [2023-02-15 14:01:22,791 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) [2023-02-15 14:01:23,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:01:23,666 INFO L93 Difference]: Finished difference Result 823 states and 856 transitions. [2023-02-15 14:01:23,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2023-02-15 14:01:23,667 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 [2023-02-15 14:01:23,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:01:23,670 INFO L225 Difference]: With dead ends: 823 [2023-02-15 14:01:23,670 INFO L226 Difference]: Without dead ends: 822 [2023-02-15 14:01:23,672 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 89 SyntacticMatches, 1 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1598 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=2204, Invalid=5278, Unknown=0, NotChecked=0, Total=7482 [2023-02-15 14:01:23,673 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 911 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 188 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 913 SdHoareTripleChecker+Valid, 452 SdHoareTripleChecker+Invalid, 652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 188 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-15 14:01:23,673 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [913 Valid, 452 Invalid, 652 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [188 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-15 14:01:23,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 822 states. [2023-02-15 14:01:23,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 822 to 800. [2023-02-15 14:01:23,686 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) [2023-02-15 14:01:23,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 800 states to 800 states and 844 transitions. [2023-02-15 14:01:23,689 INFO L78 Accepts]: Start accepts. Automaton has 800 states and 844 transitions. Word has length 57 [2023-02-15 14:01:23,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:01:23,689 INFO L495 AbstractCegarLoop]: Abstraction has 800 states and 844 transitions. [2023-02-15 14:01:23,689 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) [2023-02-15 14:01:23,689 INFO L276 IsEmpty]: Start isEmpty. Operand 800 states and 844 transitions. [2023-02-15 14:01:23,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-02-15 14:01:23,691 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:01:23,691 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1] [2023-02-15 14:01:23,698 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-02-15 14:01:23,896 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 [2023-02-15 14:01:23,896 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting hanoiErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 14:01:23,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:01:23,897 INFO L85 PathProgramCache]: Analyzing trace with hash 841754434, now seen corresponding path program 2 times [2023-02-15 14:01:23,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:01:23,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105294358] [2023-02-15 14:01:23,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:01:23,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:01:23,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:01:23,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-02-15 14:01:23,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:01:23,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-15 14:01:23,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:01:24,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-15 14:01:24,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:01:24,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-15 14:01:24,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:01:24,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-15 14:01:24,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:01:24,100 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-02-15 14:01:24,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:01:24,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105294358] [2023-02-15 14:01:24,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105294358] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 14:01:24,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1142283689] [2023-02-15 14:01:24,101 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-15 14:01:24,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:01:24,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:01:24,102 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) [2023-02-15 14:01:24,104 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-02-15 14:01:24,139 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-15 14:01:24,139 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 14:01:24,140 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 11 conjunts are in the unsatisfiable core [2023-02-15 14:01:24,145 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:01:24,185 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-02-15 14:01:24,186 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 14:01:24,576 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-02-15 14:01:24,576 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1142283689] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 14:01:24,576 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 14:01:24,576 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 23 [2023-02-15 14:01:24,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318522017] [2023-02-15 14:01:24,576 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 14:01:24,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-02-15 14:01:24,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:01:24,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-02-15 14:01:24,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2023-02-15 14:01:24,578 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) [2023-02-15 14:01:24,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:01:24,646 INFO L93 Difference]: Finished difference Result 1743 states and 1924 transitions. [2023-02-15 14:01:24,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-02-15 14:01:24,647 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 [2023-02-15 14:01:24,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:01:24,651 INFO L225 Difference]: With dead ends: 1743 [2023-02-15 14:01:24,651 INFO L226 Difference]: Without dead ends: 1439 [2023-02-15 14:01:24,655 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 228 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2023-02-15 14:01:24,656 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 [2023-02-15 14:01:24,656 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] [2023-02-15 14:01:24,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1439 states. [2023-02-15 14:01:24,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1439 to 1439. [2023-02-15 14:01:24,685 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) [2023-02-15 14:01:24,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1439 states to 1439 states and 1483 transitions. [2023-02-15 14:01:24,689 INFO L78 Accepts]: Start accepts. Automaton has 1439 states and 1483 transitions. Word has length 64 [2023-02-15 14:01:24,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:01:24,690 INFO L495 AbstractCegarLoop]: Abstraction has 1439 states and 1483 transitions. [2023-02-15 14:01:24,690 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) [2023-02-15 14:01:24,690 INFO L276 IsEmpty]: Start isEmpty. Operand 1439 states and 1483 transitions. [2023-02-15 14:01:24,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-02-15 14:01:24,693 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:01:24,694 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 22, 22, 22, 1, 1, 1, 1, 1] [2023-02-15 14:01:24,699 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-02-15 14:01:24,899 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 [2023-02-15 14:01:24,899 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 14:01:24,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:01:24,900 INFO L85 PathProgramCache]: Analyzing trace with hash 1809372175, now seen corresponding path program 4 times [2023-02-15 14:01:24,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:01:24,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102893343] [2023-02-15 14:01:24,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:01:24,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:01:24,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:01:25,855 INFO L134 CoverageAnalysis]: Checked inductivity of 1221 backedges. 0 proven. 1221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:01:25,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:01:25,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102893343] [2023-02-15 14:01:25,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102893343] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 14:01:25,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1978285857] [2023-02-15 14:01:25,856 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-15 14:01:25,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:01:25,856 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:01:25,857 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) [2023-02-15 14:01:25,859 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-02-15 14:01:25,908 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-15 14:01:25,908 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 14:01:25,910 INFO L263 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 48 conjunts are in the unsatisfiable core [2023-02-15 14:01:25,912 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:01:26,034 INFO L134 CoverageAnalysis]: Checked inductivity of 1221 backedges. 0 proven. 1221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:01:26,034 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 14:01:27,566 INFO L134 CoverageAnalysis]: Checked inductivity of 1221 backedges. 0 proven. 1221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:01:27,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1978285857] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 14:01:27,566 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 14:01:27,566 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 95 [2023-02-15 14:01:27,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983670094] [2023-02-15 14:01:27,566 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 14:01:27,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2023-02-15 14:01:27,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:01:27,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2023-02-15 14:01:27,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2260, Invalid=6860, Unknown=0, NotChecked=0, Total=9120 [2023-02-15 14:01:27,570 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) [2023-02-15 14:01:30,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:01:30,349 INFO L93 Difference]: Finished difference Result 3406 states and 3475 transitions. [2023-02-15 14:01:30,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 132 states. [2023-02-15 14:01:30,350 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 [2023-02-15 14:01:30,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:01:30,359 INFO L225 Difference]: With dead ends: 3406 [2023-02-15 14:01:30,360 INFO L226 Difference]: Without dead ends: 3405 [2023-02-15 14:01:30,366 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 361 GetRequests, 185 SyntacticMatches, 1 SemanticMatches, 175 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7136 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=9119, Invalid=22033, Unknown=0, NotChecked=0, Total=31152 [2023-02-15 14:01:30,366 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 2716 mSDsluCounter, 835 mSDsCounter, 0 mSdLazyCounter, 901 mSolverCounterSat, 724 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2718 SdHoareTripleChecker+Valid, 905 SdHoareTripleChecker+Invalid, 1625 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 724 IncrementalHoareTripleChecker+Valid, 901 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-02-15 14:01:30,367 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] [2023-02-15 14:01:30,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3405 states. [2023-02-15 14:01:30,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3405 to 3359. [2023-02-15 14:01:30,408 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) [2023-02-15 14:01:30,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3359 states to 3359 states and 3451 transitions. [2023-02-15 14:01:30,414 INFO L78 Accepts]: Start accepts. Automaton has 3359 states and 3451 transitions. Word has length 117 [2023-02-15 14:01:30,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:01:30,415 INFO L495 AbstractCegarLoop]: Abstraction has 3359 states and 3451 transitions. [2023-02-15 14:01:30,415 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) [2023-02-15 14:01:30,415 INFO L276 IsEmpty]: Start isEmpty. Operand 3359 states and 3451 transitions. [2023-02-15 14:01:30,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-02-15 14:01:30,420 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:01:30,421 INFO L195 NwaCegarLoop]: trace histogram [12, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 1, 1, 1, 1, 1, 1] [2023-02-15 14:01:30,428 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-02-15 14:01:30,626 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 [2023-02-15 14:01:30,626 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting hanoiErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 14:01:30,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:01:30,627 INFO L85 PathProgramCache]: Analyzing trace with hash 1057662018, now seen corresponding path program 3 times [2023-02-15 14:01:30,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:01:30,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471822600] [2023-02-15 14:01:30,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:01:30,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:01:30,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:01:30,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-02-15 14:01:30,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:01:30,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-15 14:01:30,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:01:30,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-15 14:01:30,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:01:31,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-15 14:01:31,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:01:31,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-15 14:01:31,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:01:31,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-15 14:01:31,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:01:31,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-15 14:01:31,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:01:31,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-15 14:01:31,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:01:31,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-15 14:01:31,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:01:31,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-15 14:01:31,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:01:31,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-15 14:01:31,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:01:31,340 INFO L134 CoverageAnalysis]: Checked inductivity of 662 backedges. 0 proven. 365 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2023-02-15 14:01:31,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:01:31,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471822600] [2023-02-15 14:01:31,340 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471822600] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 14:01:31,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1216290995] [2023-02-15 14:01:31,340 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-15 14:01:31,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:01:31,341 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:01:31,342 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) [2023-02-15 14:01:31,344 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-02-15 14:01:31,399 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2023-02-15 14:01:31,400 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 14:01:31,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 23 conjunts are in the unsatisfiable core [2023-02-15 14:01:31,404 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:01:31,484 INFO L134 CoverageAnalysis]: Checked inductivity of 662 backedges. 0 proven. 365 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2023-02-15 14:01:31,485 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 14:01:34,801 INFO L134 CoverageAnalysis]: Checked inductivity of 662 backedges. 0 proven. 365 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2023-02-15 14:01:34,802 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1216290995] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 14:01:34,802 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 14:01:34,802 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 47 [2023-02-15 14:01:34,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727148176] [2023-02-15 14:01:34,802 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 14:01:34,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2023-02-15 14:01:34,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:01:34,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2023-02-15 14:01:34,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=599, Invalid=1657, Unknown=0, NotChecked=0, Total=2256 [2023-02-15 14:01:34,804 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) [2023-02-15 14:01:34,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:01:34,949 INFO L93 Difference]: Finished difference Result 7260 states and 7915 transitions. [2023-02-15 14:01:34,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2023-02-15 14:01:34,950 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 [2023-02-15 14:01:34,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:01:34,962 INFO L225 Difference]: With dead ends: 7260 [2023-02-15 14:01:34,963 INFO L226 Difference]: Without dead ends: 5897 [2023-02-15 14:01:34,966 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 315 GetRequests, 269 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1092 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=599, Invalid=1657, Unknown=0, NotChecked=0, Total=2256 [2023-02-15 14:01:34,966 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 [2023-02-15 14:01:34,967 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] [2023-02-15 14:01:34,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5897 states. [2023-02-15 14:01:35,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5897 to 5897. [2023-02-15 14:01:35,038 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) [2023-02-15 14:01:35,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5897 states to 5897 states and 5989 transitions. [2023-02-15 14:01:35,048 INFO L78 Accepts]: Start accepts. Automaton has 5897 states and 5989 transitions. Word has length 136 [2023-02-15 14:01:35,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:01:35,049 INFO L495 AbstractCegarLoop]: Abstraction has 5897 states and 5989 transitions. [2023-02-15 14:01:35,049 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) [2023-02-15 14:01:35,049 INFO L276 IsEmpty]: Start isEmpty. Operand 5897 states and 5989 transitions. [2023-02-15 14:01:35,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2023-02-15 14:01:35,052 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:01:35,052 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 46, 46, 46, 1, 1, 1, 1, 1] [2023-02-15 14:01:35,057 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-02-15 14:01:35,261 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 [2023-02-15 14:01:35,261 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 14:01:35,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:01:35,262 INFO L85 PathProgramCache]: Analyzing trace with hash 1901552399, now seen corresponding path program 5 times [2023-02-15 14:01:35,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:01:35,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313837981] [2023-02-15 14:01:35,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:01:35,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:01:35,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:01:38,405 INFO L134 CoverageAnalysis]: Checked inductivity of 5313 backedges. 0 proven. 5313 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:01:38,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:01:38,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313837981] [2023-02-15 14:01:38,406 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313837981] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 14:01:38,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1065765125] [2023-02-15 14:01:38,406 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-15 14:01:38,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:01:38,406 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:01:38,407 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) [2023-02-15 14:01:38,408 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-02-15 14:01:38,586 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2023-02-15 14:01:38,586 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 14:01:38,589 INFO L263 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 96 conjunts are in the unsatisfiable core [2023-02-15 14:01:38,598 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:01:38,824 INFO L134 CoverageAnalysis]: Checked inductivity of 5313 backedges. 0 proven. 5313 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:01:38,824 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 14:01:44,339 INFO L134 CoverageAnalysis]: Checked inductivity of 5313 backedges. 0 proven. 5313 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:01:44,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1065765125] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 14:01:44,339 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 14:01:44,339 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96, 96] total 191 [2023-02-15 14:01:44,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890954047] [2023-02-15 14:01:44,339 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 14:01:44,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2023-02-15 14:01:44,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:01:44,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2023-02-15 14:01:44,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9124, Invalid=27548, Unknown=0, NotChecked=0, Total=36672 [2023-02-15 14:01:44,351 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) [2023-02-15 14:01:56,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:01:56,770 INFO L93 Difference]: Finished difference Result 13864 states and 14005 transitions. [2023-02-15 14:01:56,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 264 states. [2023-02-15 14:01:56,771 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 [2023-02-15 14:01:56,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:01:56,805 INFO L225 Difference]: With dead ends: 13864 [2023-02-15 14:01:56,806 INFO L226 Difference]: Without dead ends: 13863 [2023-02-15 14:01:56,814 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 733 GetRequests, 377 SyntacticMatches, 1 SemanticMatches, 355 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30092 ImplicationChecksByTransitivity, 13.3s TimeCoverageRelationStatistics Valid=37097, Invalid=89995, Unknown=0, NotChecked=0, Total=127092 [2023-02-15 14:01:56,815 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 [2023-02-15 14:01:56,815 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] [2023-02-15 14:01:56,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13863 states. [2023-02-15 14:01:56,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13863 to 13769. [2023-02-15 14:01:56,977 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) [2023-02-15 14:01:56,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13769 states to 13769 states and 13957 transitions. [2023-02-15 14:01:56,995 INFO L78 Accepts]: Start accepts. Automaton has 13769 states and 13957 transitions. Word has length 237 [2023-02-15 14:01:56,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:01:56,996 INFO L495 AbstractCegarLoop]: Abstraction has 13769 states and 13957 transitions. [2023-02-15 14:01:56,997 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) [2023-02-15 14:01:56,997 INFO L276 IsEmpty]: Start isEmpty. Operand 13769 states and 13957 transitions. [2023-02-15 14:01:57,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2023-02-15 14:01:57,003 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:01:57,003 INFO L195 NwaCegarLoop]: trace histogram [24, 23, 23, 23, 23, 23, 23, 23, 23, 22, 22, 22, 1, 1, 1, 1, 1, 1] [2023-02-15 14:01:57,008 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-02-15 14:01:57,208 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 [2023-02-15 14:01:57,208 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting hanoiErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 14:01:57,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:01:57,209 INFO L85 PathProgramCache]: Analyzing trace with hash 169614914, now seen corresponding path program 4 times [2023-02-15 14:01:57,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:01:57,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056396454] [2023-02-15 14:01:57,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:01:57,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:01:57,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:01:57,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-02-15 14:01:57,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:01:57,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-15 14:01:57,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:01:58,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-15 14:01:58,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:01:58,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-15 14:01:58,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:01:58,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-15 14:01:58,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:01:58,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-15 14:01:58,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:01:58,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-15 14:01:58,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:01:58,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-15 14:01:58,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:01:59,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-15 14:01:59,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:01:59,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-15 14:01:59,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:01:59,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-15 14:01:59,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:01:59,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-15 14:01:59,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:01:59,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-15 14:01:59,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:01:59,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-15 14:01:59,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:01:59,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-15 14:01:59,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:01:59,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-15 14:01:59,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:01:59,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-15 14:01:59,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:01:59,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-15 14:01:59,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:01:59,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-15 14:01:59,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:02:00,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-15 14:02:00,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:02:00,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-15 14:02:00,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:02:00,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-15 14:02:00,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:02:00,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-15 14:02:00,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:02:00,238 INFO L134 CoverageAnalysis]: Checked inductivity of 3038 backedges. 0 proven. 1727 refuted. 0 times theorem prover too weak. 1311 trivial. 0 not checked. [2023-02-15 14:02:00,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:02:00,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056396454] [2023-02-15 14:02:00,239 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056396454] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 14:02:00,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [38363544] [2023-02-15 14:02:00,239 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-15 14:02:00,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:02:00,240 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:02:00,241 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) [2023-02-15 14:02:00,245 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-02-15 14:02:00,385 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-15 14:02:00,386 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 14:02:00,388 INFO L263 TraceCheckSpWp]: Trace formula consists of 495 conjuncts, 47 conjunts are in the unsatisfiable core [2023-02-15 14:02:00,390 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:02:00,598 INFO L134 CoverageAnalysis]: Checked inductivity of 3038 backedges. 0 proven. 1727 refuted. 0 times theorem prover too weak. 1311 trivial. 0 not checked. [2023-02-15 14:02:00,598 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 14:02:30,138 INFO L134 CoverageAnalysis]: Checked inductivity of 3038 backedges. 0 proven. 1727 refuted. 0 times theorem prover too weak. 1311 trivial. 0 not checked. [2023-02-15 14:02:30,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [38363544] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 14:02:30,138 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 14:02:30,138 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47, 47] total 63 [2023-02-15 14:02:30,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380067408] [2023-02-15 14:02:30,139 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 14:02:30,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2023-02-15 14:02:30,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:02:30,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2023-02-15 14:02:30,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1055, Invalid=2977, Unknown=0, NotChecked=0, Total=4032 [2023-02-15 14:02:30,141 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) [2023-02-15 14:02:30,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:02:30,325 INFO L93 Difference]: Finished difference Result 19058 states and 20005 transitions. [2023-02-15 14:02:30,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2023-02-15 14:02:30,325 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 [2023-02-15 14:02:30,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:02:30,363 INFO L225 Difference]: With dead ends: 19058 [2023-02-15 14:02:30,364 INFO L226 Difference]: Without dead ends: 17589 [2023-02-15 14:02:30,373 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 651 GetRequests, 557 SyntacticMatches, 32 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3426 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1055, Invalid=2977, Unknown=0, NotChecked=0, Total=4032 [2023-02-15 14:02:30,374 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, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 14:02:30,374 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 103 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 14:02:30,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17589 states. [2023-02-15 14:02:30,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17589 to 17589. [2023-02-15 14:02:30,597 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) [2023-02-15 14:02:30,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17589 states to 17589 states and 17777 transitions. [2023-02-15 14:02:30,617 INFO L78 Accepts]: Start accepts. Automaton has 17589 states and 17777 transitions. Word has length 280 [2023-02-15 14:02:30,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:02:30,617 INFO L495 AbstractCegarLoop]: Abstraction has 17589 states and 17777 transitions. [2023-02-15 14:02:30,618 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) [2023-02-15 14:02:30,618 INFO L276 IsEmpty]: Start isEmpty. Operand 17589 states and 17777 transitions. [2023-02-15 14:02:30,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 377 [2023-02-15 14:02:30,628 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:02:30,628 INFO L195 NwaCegarLoop]: trace histogram [32, 31, 31, 31, 31, 31, 31, 31, 31, 30, 30, 30, 1, 1, 1, 1, 1, 1] [2023-02-15 14:02:30,633 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-02-15 14:02:30,833 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 [2023-02-15 14:02:30,833 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting hanoiErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 14:02:30,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:02:30,834 INFO L85 PathProgramCache]: Analyzing trace with hash 1751849538, now seen corresponding path program 5 times [2023-02-15 14:02:30,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:02:30,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364892243] [2023-02-15 14:02:30,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:02:30,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:02:30,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:02:31,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-02-15 14:02:31,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:02:31,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-15 14:02:31,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:02:32,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-15 14:02:32,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:02:32,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-15 14:02:32,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:02:32,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-15 14:02:32,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:02:33,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-15 14:02:33,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:02:33,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-15 14:02:33,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:02:33,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-15 14:02:33,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:02:34,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-15 14:02:34,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:02:34,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-15 14:02:34,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:02:34,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-15 14:02:34,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:02:34,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-15 14:02:34,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:02:34,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-15 14:02:34,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:02:34,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-15 14:02:34,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:02:35,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-15 14:02:35,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:02:35,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-15 14:02:35,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:02:35,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-15 14:02:35,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:02:35,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-15 14:02:35,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:02:35,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-15 14:02:35,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:02:35,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-15 14:02:35,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:02:35,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-15 14:02:35,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:02:35,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-15 14:02:35,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:02:35,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-15 14:02:35,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:02:35,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-15 14:02:35,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:02:35,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-15 14:02:36,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:02:36,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-15 14:02:36,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:02:36,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-15 14:02:36,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:02:36,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-15 14:02:36,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:02:36,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-15 14:02:36,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:02:36,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-15 14:02:36,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:02:36,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-15 14:02:36,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:02:36,256 INFO L134 CoverageAnalysis]: Checked inductivity of 5582 backedges. 3135 proven. 242 refuted. 0 times theorem prover too weak. 2205 trivial. 0 not checked. [2023-02-15 14:02:36,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:02:36,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364892243] [2023-02-15 14:02:36,257 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364892243] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 14:02:36,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [774108876] [2023-02-15 14:02:36,257 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-15 14:02:36,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:02:36,257 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:02:36,258 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) [2023-02-15 14:02:36,260 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-02-15 14:02:36,937 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 32 check-sat command(s) [2023-02-15 14:02:36,938 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 14:02:36,940 INFO L263 TraceCheckSpWp]: Trace formula consists of 655 conjuncts, 66 conjunts are in the unsatisfiable core [2023-02-15 14:02:36,944 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:02:37,309 INFO L134 CoverageAnalysis]: Checked inductivity of 5582 backedges. 3195 proven. 152 refuted. 0 times theorem prover too weak. 2235 trivial. 0 not checked. [2023-02-15 14:02:37,309 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 14:04:03,378 INFO L134 CoverageAnalysis]: Checked inductivity of 5582 backedges. 3195 proven. 1922 refuted. 0 times theorem prover too weak. 465 trivial. 0 not checked. [2023-02-15 14:04:03,378 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [774108876] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 14:04:03,378 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 14:04:03,378 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 37, 67] total 71 [2023-02-15 14:04:03,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859866850] [2023-02-15 14:04:03,379 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 14:04:03,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 71 states [2023-02-15 14:04:03,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:04:03,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2023-02-15 14:04:03,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1169, Invalid=3801, Unknown=0, NotChecked=0, Total=4970 [2023-02-15 14:04:03,382 INFO L87 Difference]: Start difference. First operand 17589 states and 17777 transitions. Second operand has 71 states, 70 states have (on average 4.642857142857143) internal successors, (325), 70 states have internal predecessors, (325), 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) [2023-02-15 14:04:04,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:04:04,091 INFO L93 Difference]: Finished difference Result 17965 states and 18154 transitions. [2023-02-15 14:04:04,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-02-15 14:04:04,092 INFO L78 Accepts]: Start accepts. Automaton has has 71 states, 70 states have (on average 4.642857142857143) internal successors, (325), 70 states have internal predecessors, (325), 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 [2023-02-15 14:04:04,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:04:04,094 INFO L225 Difference]: With dead ends: 17965 [2023-02-15 14:04:04,094 INFO L226 Difference]: Without dead ends: 480 [2023-02-15 14:04:04,113 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 880 GetRequests, 744 SyntacticMatches, 35 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1615 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=3348, Invalid=7158, Unknown=0, NotChecked=0, Total=10506 [2023-02-15 14:04:04,113 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 63 mSDsluCounter, 999 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 1185 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 14:04:04,114 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 1185 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 14:04:04,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2023-02-15 14:04:04,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 478. [2023-02-15 14:04:04,141 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) [2023-02-15 14:04:04,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 478 transitions. [2023-02-15 14:04:04,142 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 478 transitions. Word has length 376 [2023-02-15 14:04:04,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:04:04,142 INFO L495 AbstractCegarLoop]: Abstraction has 478 states and 478 transitions. [2023-02-15 14:04:04,143 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 71 states, 70 states have (on average 4.642857142857143) internal successors, (325), 70 states have internal predecessors, (325), 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) [2023-02-15 14:04:04,143 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 478 transitions. [2023-02-15 14:04:04,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 478 [2023-02-15 14:04:04,148 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:04:04,148 INFO L195 NwaCegarLoop]: trace histogram [95, 95, 94, 94, 94, 1, 1, 1, 1, 1] [2023-02-15 14:04:04,157 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-02-15 14:04:04,357 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 [2023-02-15 14:04:04,357 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 14:04:04,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:04:04,358 INFO L85 PathProgramCache]: Analyzing trace with hash 1283555599, now seen corresponding path program 6 times [2023-02-15 14:04:04,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:04:04,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144438893] [2023-02-15 14:04:04,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:04:04,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:04:04,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:04:16,577 INFO L134 CoverageAnalysis]: Checked inductivity of 22137 backedges. 0 proven. 22137 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:04:16,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:04:16,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144438893] [2023-02-15 14:04:16,578 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144438893] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 14:04:16,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1171128692] [2023-02-15 14:04:16,578 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-02-15 14:04:16,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:04:16,578 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:04:16,579 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) [2023-02-15 14:04:16,580 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-02-15 14:04:18,354 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2023-02-15 14:04:18,354 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 14:04:18,360 INFO L263 TraceCheckSpWp]: Trace formula consists of 883 conjuncts, 192 conjunts are in the unsatisfiable core [2023-02-15 14:04:18,366 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:04:18,841 INFO L134 CoverageAnalysis]: Checked inductivity of 22137 backedges. 0 proven. 22137 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:04:18,841 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 14:04:39,844 INFO L134 CoverageAnalysis]: Checked inductivity of 22137 backedges. 0 proven. 22137 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:04:39,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1171128692] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 14:04:39,844 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 14:04:39,845 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [192, 192, 192] total 383 [2023-02-15 14:04:39,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716025794] [2023-02-15 14:04:39,845 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 14:04:39,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 384 states [2023-02-15 14:04:39,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:04:39,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 384 interpolants. [2023-02-15 14:04:39,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36676, Invalid=110396, Unknown=0, NotChecked=0, Total=147072 [2023-02-15 14:04:39,861 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)