/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml -i ../sv-benchmarks/c/seq-mthreaded/pals_floodmax.5.1.ufo.BOUNDED-10.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 05:05:00,550 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 05:05:00,553 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 05:05:00,588 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 05:05:00,588 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 05:05:00,594 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 05:05:00,598 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 05:05:00,601 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 05:05:00,603 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 05:05:00,608 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 05:05:00,611 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 05:05:00,612 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 05:05:00,612 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 05:05:00,612 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 05:05:00,613 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 05:05:00,614 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 05:05:00,614 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 05:05:00,615 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 05:05:00,616 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 05:05:00,617 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 05:05:00,618 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 05:05:00,619 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 05:05:00,620 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 05:05:00,621 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 05:05:00,623 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-04-02 05:05:00,626 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 05:05:00,626 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 05:05:00,627 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 05:05:00,627 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 05:05:00,628 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 05:05:00,628 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 05:05:00,629 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 05:05:00,629 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 05:05:00,629 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 05:05:00,630 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 05:05:00,630 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 05:05:00,631 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-04-02 05:05:00,664 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 05:05:00,665 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 05:05:00,666 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 05:05:00,666 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 05:05:00,667 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 05:05:00,667 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 05:05:00,668 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-02 05:05:00,668 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-02 05:05:00,668 INFO L138 SettingsManager]: * Use SBE=true [2023-04-02 05:05:00,668 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 05:05:00,669 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 05:05:00,669 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 05:05:00,669 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 05:05:00,669 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 05:05:00,669 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 05:05:00,669 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 05:05:00,670 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 05:05:00,670 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 05:05:00,670 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 05:05:00,670 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 05:05:00,670 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 05:05:00,670 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 05:05:00,670 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-02 05:05:00,670 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 05:05:00,671 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 05:05:00,671 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 05:05:00,671 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 05:05:00,671 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 05:05:00,671 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-02 05:05:00,671 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 05:05:00,671 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-02 05:05:00,672 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 05:05:00,672 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-02 05:05:00,672 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-02 05:05:00,672 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-02 05:05:00,672 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-02 05:05:00,915 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 05:05:00,943 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 05:05:00,945 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 05:05:00,946 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 05:05:00,946 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 05:05:00,947 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_floodmax.5.1.ufo.BOUNDED-10.pals.c [2023-04-02 05:05:02,113 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 05:05:02,401 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 05:05:02,402 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_floodmax.5.1.ufo.BOUNDED-10.pals.c [2023-04-02 05:05:02,416 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea1b5ebec/0aa81f03804c4a13994974ce8b3718c2/FLAG83a052f65 [2023-04-02 05:05:02,432 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea1b5ebec/0aa81f03804c4a13994974ce8b3718c2 [2023-04-02 05:05:02,434 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 05:05:02,436 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 05:05:02,437 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 05:05:02,437 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 05:05:02,440 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 05:05:02,440 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 05:05:02" (1/1) ... [2023-04-02 05:05:02,442 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76b8f2af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:05:02, skipping insertion in model container [2023-04-02 05:05:02,442 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 05:05:02" (1/1) ... [2023-04-02 05:05:02,448 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 05:05:02,508 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 05:05:02,873 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_floodmax.5.1.ufo.BOUNDED-10.pals.c[52017,52030] [2023-04-02 05:05:02,876 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 05:05:02,887 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 05:05:02,970 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_floodmax.5.1.ufo.BOUNDED-10.pals.c[52017,52030] [2023-04-02 05:05:02,971 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 05:05:02,993 INFO L208 MainTranslator]: Completed translation [2023-04-02 05:05:02,993 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:05:02 WrapperNode [2023-04-02 05:05:02,993 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 05:05:02,994 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 05:05:02,994 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 05:05:02,994 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 05:05:03,005 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:05:02" (1/1) ... [2023-04-02 05:05:03,005 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:05:02" (1/1) ... [2023-04-02 05:05:03,030 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:05:02" (1/1) ... [2023-04-02 05:05:03,030 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:05:02" (1/1) ... [2023-04-02 05:05:03,074 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:05:02" (1/1) ... [2023-04-02 05:05:03,098 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:05:02" (1/1) ... [2023-04-02 05:05:03,106 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:05:02" (1/1) ... [2023-04-02 05:05:03,112 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:05:02" (1/1) ... [2023-04-02 05:05:03,124 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 05:05:03,124 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 05:05:03,125 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 05:05:03,125 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 05:05:03,125 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:05:02" (1/1) ... [2023-04-02 05:05:03,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 05:05:03,140 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 05:05:03,155 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) [2023-04-02 05:05:03,177 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 [2023-04-02 05:05:03,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 05:05:03,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 05:05:03,198 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 05:05:03,199 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-02 05:05:03,199 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2023-04-02 05:05:03,199 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2023-04-02 05:05:03,199 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2023-04-02 05:05:03,199 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2023-04-02 05:05:03,199 INFO L138 BoogieDeclarations]: Found implementation of procedure node5 [2023-04-02 05:05:03,199 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2023-04-02 05:05:03,199 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2023-04-02 05:05:03,200 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 05:05:03,200 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2023-04-02 05:05:03,200 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 05:05:03,200 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 05:05:03,200 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 05:05:03,200 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 05:05:03,200 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2023-04-02 05:05:03,200 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-04-02 05:05:03,201 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-04-02 05:05:03,201 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-02 05:05:03,201 INFO L130 BoogieDeclarations]: Found specification of procedure read [2023-04-02 05:05:03,201 INFO L130 BoogieDeclarations]: Found specification of procedure write [2023-04-02 05:05:03,201 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2023-04-02 05:05:03,201 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2023-04-02 05:05:03,201 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2023-04-02 05:05:03,201 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2023-04-02 05:05:03,201 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2023-04-02 05:05:03,201 INFO L130 BoogieDeclarations]: Found specification of procedure init [2023-04-02 05:05:03,201 INFO L130 BoogieDeclarations]: Found specification of procedure check [2023-04-02 05:05:03,202 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 05:05:03,202 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 05:05:03,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 05:05:03,202 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 05:05:03,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 05:05:03,202 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 05:05:03,202 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 05:05:03,397 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 05:05:03,399 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 05:05:04,757 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 05:05:04,776 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 05:05:04,776 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-04-02 05:05:04,781 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 05:05:04 BoogieIcfgContainer [2023-04-02 05:05:04,781 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 05:05:04,785 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 05:05:04,785 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 05:05:04,788 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 05:05:04,788 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 05:05:02" (1/3) ... [2023-04-02 05:05:04,788 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5205ef6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 05:05:04, skipping insertion in model container [2023-04-02 05:05:04,788 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:05:02" (2/3) ... [2023-04-02 05:05:04,789 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5205ef6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 05:05:04, skipping insertion in model container [2023-04-02 05:05:04,789 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 05:05:04" (3/3) ... [2023-04-02 05:05:04,790 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_floodmax.5.1.ufo.BOUNDED-10.pals.c [2023-04-02 05:05:04,805 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 05:05:04,805 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 05:05:04,871 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 05:05:04,875 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;@72b6fc5, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-02 05:05:04,876 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 05:05:04,882 INFO L276 IsEmpty]: Start isEmpty. Operand has 678 states, 654 states have (on average 1.8547400611620795) internal successors, (1213), 655 states have internal predecessors, (1213), 11 states have call successors, (11), 11 states have call predecessors, (11), 11 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-04-02 05:05:04,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2023-04-02 05:05:04,903 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:05:04,904 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:05:04,904 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:05:04,908 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:05:04,909 INFO L85 PathProgramCache]: Analyzing trace with hash 393170926, now seen corresponding path program 1 times [2023-04-02 05:05:04,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:05:04,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601182523] [2023-04-02 05:05:04,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:05:04,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:05:05,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:06,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:05:06,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:06,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:05:06,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:06,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-04-02 05:05:06,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:06,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-04-02 05:05:06,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:06,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2023-04-02 05:05:06,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:06,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-04-02 05:05:06,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:06,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-04-02 05:05:06,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:06,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2023-04-02 05:05:06,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:06,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2023-04-02 05:05:06,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:06,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:05:06,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:05:06,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601182523] [2023-04-02 05:05:06,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601182523] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:05:06,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:05:06,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-02 05:05:06,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318045544] [2023-04-02 05:05:06,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:05:06,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-02 05:05:06,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:05:06,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-02 05:05:06,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-04-02 05:05:06,683 INFO L87 Difference]: Start difference. First operand has 678 states, 654 states have (on average 1.8547400611620795) internal successors, (1213), 655 states have internal predecessors, (1213), 11 states have call successors, (11), 11 states have call predecessors, (11), 11 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 8 states, 8 states have (on average 20.25) internal successors, (162), 2 states have internal predecessors, (162), 2 states have call successors, (11), 8 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-02 05:05:11,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:05:11,877 INFO L93 Difference]: Finished difference Result 841 states and 1510 transitions. [2023-04-02 05:05:11,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-04-02 05:05:11,879 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 20.25) internal successors, (162), 2 states have internal predecessors, (162), 2 states have call successors, (11), 8 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 182 [2023-04-02 05:05:11,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:05:11,905 INFO L225 Difference]: With dead ends: 841 [2023-04-02 05:05:11,905 INFO L226 Difference]: Without dead ends: 693 [2023-04-02 05:05:11,910 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2023-04-02 05:05:11,915 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 5884 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 1494 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5884 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 1544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 1494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2023-04-02 05:05:11,916 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5884 Valid, 89 Invalid, 1544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 1494 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2023-04-02 05:05:11,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states. [2023-04-02 05:05:12,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 673. [2023-04-02 05:05:12,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 673 states, 651 states have (on average 1.8525345622119815) internal successors, (1206), 651 states have internal predecessors, (1206), 11 states have call successors, (11), 11 states have call predecessors, (11), 10 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-04-02 05:05:12,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 673 states to 673 states and 1227 transitions. [2023-04-02 05:05:12,317 INFO L78 Accepts]: Start accepts. Automaton has 673 states and 1227 transitions. Word has length 182 [2023-04-02 05:05:12,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:05:12,320 INFO L495 AbstractCegarLoop]: Abstraction has 673 states and 1227 transitions. [2023-04-02 05:05:12,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.25) internal successors, (162), 2 states have internal predecessors, (162), 2 states have call successors, (11), 8 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-02 05:05:12,320 INFO L276 IsEmpty]: Start isEmpty. Operand 673 states and 1227 transitions. [2023-04-02 05:05:12,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2023-04-02 05:05:12,327 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:05:12,327 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:05:12,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-02 05:05:12,328 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:05:12,329 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:05:12,329 INFO L85 PathProgramCache]: Analyzing trace with hash 40082544, now seen corresponding path program 1 times [2023-04-02 05:05:12,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:05:12,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618316141] [2023-04-02 05:05:12,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:05:12,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:05:12,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:13,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:05:13,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:13,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:05:13,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:13,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-04-02 05:05:13,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:13,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-04-02 05:05:13,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:13,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2023-04-02 05:05:13,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:13,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-04-02 05:05:13,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:13,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-04-02 05:05:13,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:13,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2023-04-02 05:05:13,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:13,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2023-04-02 05:05:13,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:13,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:05:13,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:05:13,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618316141] [2023-04-02 05:05:13,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618316141] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:05:13,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:05:13,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-04-02 05:05:13,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205438420] [2023-04-02 05:05:13,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:05:13,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-04-02 05:05:13,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:05:13,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-04-02 05:05:13,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2023-04-02 05:05:13,954 INFO L87 Difference]: Start difference. First operand 673 states and 1227 transitions. Second operand has 14 states, 13 states have (on average 12.461538461538462) internal successors, (162), 7 states have internal predecessors, (162), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-02 05:05:22,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:05:22,875 INFO L93 Difference]: Finished difference Result 845 states and 1516 transitions. [2023-04-02 05:05:22,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-04-02 05:05:22,875 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 12.461538461538462) internal successors, (162), 7 states have internal predecessors, (162), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 182 [2023-04-02 05:05:22,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:05:22,880 INFO L225 Difference]: With dead ends: 845 [2023-04-02 05:05:22,880 INFO L226 Difference]: Without dead ends: 704 [2023-04-02 05:05:22,881 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=125, Invalid=381, Unknown=0, NotChecked=0, Total=506 [2023-04-02 05:05:22,882 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 5901 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 8902 mSolverCounterSat, 130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5908 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 9032 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 8902 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2023-04-02 05:05:22,883 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5908 Valid, 135 Invalid, 9032 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [130 Valid, 8902 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2023-04-02 05:05:22,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 704 states. [2023-04-02 05:05:23,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 704 to 673. [2023-04-02 05:05:23,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 673 states, 651 states have (on average 1.7910906298003073) internal successors, (1166), 651 states have internal predecessors, (1166), 11 states have call successors, (11), 11 states have call predecessors, (11), 10 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-04-02 05:05:23,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 673 states to 673 states and 1187 transitions. [2023-04-02 05:05:23,082 INFO L78 Accepts]: Start accepts. Automaton has 673 states and 1187 transitions. Word has length 182 [2023-04-02 05:05:23,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:05:23,082 INFO L495 AbstractCegarLoop]: Abstraction has 673 states and 1187 transitions. [2023-04-02 05:05:23,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 12.461538461538462) internal successors, (162), 7 states have internal predecessors, (162), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-02 05:05:23,083 INFO L276 IsEmpty]: Start isEmpty. Operand 673 states and 1187 transitions. [2023-04-02 05:05:23,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2023-04-02 05:05:23,086 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:05:23,086 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:05:23,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-02 05:05:23,087 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:05:23,087 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:05:23,087 INFO L85 PathProgramCache]: Analyzing trace with hash -958202135, now seen corresponding path program 1 times [2023-04-02 05:05:23,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:05:23,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497418604] [2023-04-02 05:05:23,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:05:23,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:05:23,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:23,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:05:23,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:23,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:05:23,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:24,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-04-02 05:05:24,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:24,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-04-02 05:05:24,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:24,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-04-02 05:05:24,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:24,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-04-02 05:05:24,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:24,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2023-04-02 05:05:24,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:24,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-04-02 05:05:24,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:24,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2023-04-02 05:05:24,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:24,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:05:24,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:05:24,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497418604] [2023-04-02 05:05:24,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497418604] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:05:24,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:05:24,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-04-02 05:05:24,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030926300] [2023-04-02 05:05:24,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:05:24,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-02 05:05:24,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:05:24,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-02 05:05:24,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-04-02 05:05:24,290 INFO L87 Difference]: Start difference. First operand 673 states and 1187 transitions. Second operand has 11 states, 11 states have (on average 18.272727272727273) internal successors, (201), 5 states have internal predecessors, (201), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-02 05:05:31,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:05:31,729 INFO L93 Difference]: Finished difference Result 981 states and 1708 transitions. [2023-04-02 05:05:31,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-04-02 05:05:31,730 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 18.272727272727273) internal successors, (201), 5 states have internal predecessors, (201), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 221 [2023-04-02 05:05:31,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:05:31,736 INFO L225 Difference]: With dead ends: 981 [2023-04-02 05:05:31,736 INFO L226 Difference]: Without dead ends: 846 [2023-04-02 05:05:31,737 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=168, Invalid=432, Unknown=0, NotChecked=0, Total=600 [2023-04-02 05:05:31,738 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 2516 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 4044 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2522 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 4075 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 4044 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2023-04-02 05:05:31,739 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2522 Valid, 82 Invalid, 4075 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 4044 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2023-04-02 05:05:31,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 846 states. [2023-04-02 05:05:31,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 846 to 798. [2023-04-02 05:05:31,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 798 states, 761 states have (on average 1.7792378449408672) internal successors, (1354), 762 states have internal predecessors, (1354), 18 states have call successors, (18), 18 states have call predecessors, (18), 18 states have return successors, (19), 17 states have call predecessors, (19), 17 states have call successors, (19) [2023-04-02 05:05:31,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 798 states to 798 states and 1391 transitions. [2023-04-02 05:05:31,969 INFO L78 Accepts]: Start accepts. Automaton has 798 states and 1391 transitions. Word has length 221 [2023-04-02 05:05:31,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:05:31,969 INFO L495 AbstractCegarLoop]: Abstraction has 798 states and 1391 transitions. [2023-04-02 05:05:31,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 18.272727272727273) internal successors, (201), 5 states have internal predecessors, (201), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-02 05:05:31,970 INFO L276 IsEmpty]: Start isEmpty. Operand 798 states and 1391 transitions. [2023-04-02 05:05:31,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2023-04-02 05:05:31,974 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:05:31,974 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:05:31,974 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-02 05:05:31,974 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:05:31,975 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:05:31,975 INFO L85 PathProgramCache]: Analyzing trace with hash 206381049, now seen corresponding path program 1 times [2023-04-02 05:05:31,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:05:31,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530042220] [2023-04-02 05:05:31,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:05:31,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:05:32,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:32,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:05:32,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:32,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:05:32,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:32,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-04-02 05:05:32,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:32,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-04-02 05:05:32,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:32,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2023-04-02 05:05:32,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:33,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2023-04-02 05:05:33,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:33,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2023-04-02 05:05:33,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:33,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2023-04-02 05:05:33,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:33,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-04-02 05:05:33,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:33,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:05:33,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:05:33,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530042220] [2023-04-02 05:05:33,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530042220] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:05:33,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:05:33,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-04-02 05:05:33,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215279604] [2023-04-02 05:05:33,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:05:33,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-02 05:05:33,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:05:33,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-02 05:05:33,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-04-02 05:05:33,173 INFO L87 Difference]: Start difference. First operand 798 states and 1391 transitions. Second operand has 11 states, 11 states have (on average 18.636363636363637) internal successors, (205), 5 states have internal predecessors, (205), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-02 05:05:40,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:05:40,667 INFO L93 Difference]: Finished difference Result 1386 states and 2369 transitions. [2023-04-02 05:05:40,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-04-02 05:05:40,668 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 18.636363636363637) internal successors, (205), 5 states have internal predecessors, (205), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 225 [2023-04-02 05:05:40,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:05:40,673 INFO L225 Difference]: With dead ends: 1386 [2023-04-02 05:05:40,674 INFO L226 Difference]: Without dead ends: 1126 [2023-04-02 05:05:40,675 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=168, Invalid=432, Unknown=0, NotChecked=0, Total=600 [2023-04-02 05:05:40,676 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 2770 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 4007 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2775 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 4027 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 4007 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2023-04-02 05:05:40,677 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2775 Valid, 76 Invalid, 4027 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 4007 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2023-04-02 05:05:40,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1126 states. [2023-04-02 05:05:40,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1126 to 1038. [2023-04-02 05:05:40,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1038 states, 970 states have (on average 1.7670103092783505) internal successors, (1714), 974 states have internal predecessors, (1714), 32 states have call successors, (32), 32 states have call predecessors, (32), 35 states have return successors, (39), 31 states have call predecessors, (39), 31 states have call successors, (39) [2023-04-02 05:05:40,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1038 states to 1038 states and 1785 transitions. [2023-04-02 05:05:40,945 INFO L78 Accepts]: Start accepts. Automaton has 1038 states and 1785 transitions. Word has length 225 [2023-04-02 05:05:40,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:05:40,946 INFO L495 AbstractCegarLoop]: Abstraction has 1038 states and 1785 transitions. [2023-04-02 05:05:40,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 18.636363636363637) internal successors, (205), 5 states have internal predecessors, (205), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-02 05:05:40,946 INFO L276 IsEmpty]: Start isEmpty. Operand 1038 states and 1785 transitions. [2023-04-02 05:05:40,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2023-04-02 05:05:40,950 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:05:40,951 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:05:40,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-02 05:05:40,951 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:05:40,951 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:05:40,951 INFO L85 PathProgramCache]: Analyzing trace with hash -507951995, now seen corresponding path program 1 times [2023-04-02 05:05:40,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:05:40,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042070975] [2023-04-02 05:05:40,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:05:40,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:05:41,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:41,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:05:41,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:41,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:05:41,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:41,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-04-02 05:05:41,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:41,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-04-02 05:05:41,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:41,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2023-04-02 05:05:41,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:41,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2023-04-02 05:05:41,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:42,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2023-04-02 05:05:42,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:42,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2023-04-02 05:05:42,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:42,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-04-02 05:05:42,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:42,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:05:42,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:05:42,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042070975] [2023-04-02 05:05:42,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042070975] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:05:42,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:05:42,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-04-02 05:05:42,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778632343] [2023-04-02 05:05:42,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:05:42,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-02 05:05:42,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:05:42,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-02 05:05:42,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-04-02 05:05:42,097 INFO L87 Difference]: Start difference. First operand 1038 states and 1785 transitions. Second operand has 11 states, 11 states have (on average 19.0) internal successors, (209), 5 states have internal predecessors, (209), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-02 05:05:49,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:05:49,089 INFO L93 Difference]: Finished difference Result 2174 states and 3663 transitions. [2023-04-02 05:05:49,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-04-02 05:05:49,090 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 19.0) internal successors, (209), 5 states have internal predecessors, (209), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 229 [2023-04-02 05:05:49,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:05:49,099 INFO L225 Difference]: With dead ends: 2174 [2023-04-02 05:05:49,099 INFO L226 Difference]: Without dead ends: 1674 [2023-04-02 05:05:49,101 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=168, Invalid=432, Unknown=0, NotChecked=0, Total=600 [2023-04-02 05:05:49,102 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 7831 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 3856 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7835 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 3958 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 3856 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-04-02 05:05:49,102 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7835 Valid, 80 Invalid, 3958 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 3856 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2023-04-02 05:05:49,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1674 states. [2023-04-02 05:05:49,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1674 to 1500. [2023-04-02 05:05:49,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1500 states, 1368 states have (on average 1.7485380116959064) internal successors, (2392), 1380 states have internal predecessors, (2392), 60 states have call successors, (60), 60 states have call predecessors, (60), 71 states have return successors, (83), 59 states have call predecessors, (83), 59 states have call successors, (83) [2023-04-02 05:05:49,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1500 states to 1500 states and 2535 transitions. [2023-04-02 05:05:49,444 INFO L78 Accepts]: Start accepts. Automaton has 1500 states and 2535 transitions. Word has length 229 [2023-04-02 05:05:49,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:05:49,444 INFO L495 AbstractCegarLoop]: Abstraction has 1500 states and 2535 transitions. [2023-04-02 05:05:49,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 19.0) internal successors, (209), 5 states have internal predecessors, (209), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-02 05:05:49,445 INFO L276 IsEmpty]: Start isEmpty. Operand 1500 states and 2535 transitions. [2023-04-02 05:05:49,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2023-04-02 05:05:49,449 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:05:49,449 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:05:49,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-02 05:05:49,450 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:05:49,450 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:05:49,450 INFO L85 PathProgramCache]: Analyzing trace with hash -364410287, now seen corresponding path program 1 times [2023-04-02 05:05:49,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:05:49,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006208142] [2023-04-02 05:05:49,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:05:49,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:05:49,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:50,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:05:50,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:50,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:05:50,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:50,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-04-02 05:05:50,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:50,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-04-02 05:05:50,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:50,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2023-04-02 05:05:50,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:50,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2023-04-02 05:05:50,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:50,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-04-02 05:05:50,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:50,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-04-02 05:05:50,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:50,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2023-04-02 05:05:50,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:50,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:05:50,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:05:50,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006208142] [2023-04-02 05:05:50,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006208142] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:05:50,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:05:50,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-04-02 05:05:50,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901462677] [2023-04-02 05:05:50,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:05:50,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-02 05:05:50,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:05:50,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-02 05:05:50,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-04-02 05:05:50,584 INFO L87 Difference]: Start difference. First operand 1500 states and 2535 transitions. Second operand has 11 states, 11 states have (on average 19.363636363636363) internal successors, (213), 5 states have internal predecessors, (213), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-02 05:05:57,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:05:57,726 INFO L93 Difference]: Finished difference Result 3696 states and 6137 transitions. [2023-04-02 05:05:57,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-04-02 05:05:57,727 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 19.363636363636363) internal successors, (213), 5 states have internal predecessors, (213), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 233 [2023-04-02 05:05:57,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:05:57,742 INFO L225 Difference]: With dead ends: 3696 [2023-04-02 05:05:57,742 INFO L226 Difference]: Without dead ends: 2734 [2023-04-02 05:05:57,750 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=168, Invalid=432, Unknown=0, NotChecked=0, Total=600 [2023-04-02 05:05:57,759 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 3823 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 3963 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3826 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 3999 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 3963 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2023-04-02 05:05:57,763 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3826 Valid, 75 Invalid, 3999 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 3963 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2023-04-02 05:05:57,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2734 states. [2023-04-02 05:05:58,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2734 to 2388. [2023-04-02 05:05:58,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2388 states, 2124 states have (on average 1.7250470809792844) internal successors, (3664), 2156 states have internal predecessors, (3664), 116 states have call successors, (116), 116 states have call predecessors, (116), 147 states have return successors, (179), 115 states have call predecessors, (179), 115 states have call successors, (179) [2023-04-02 05:05:58,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2388 states to 2388 states and 3959 transitions. [2023-04-02 05:05:58,427 INFO L78 Accepts]: Start accepts. Automaton has 2388 states and 3959 transitions. Word has length 233 [2023-04-02 05:05:58,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:05:58,428 INFO L495 AbstractCegarLoop]: Abstraction has 2388 states and 3959 transitions. [2023-04-02 05:05:58,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 19.363636363636363) internal successors, (213), 5 states have internal predecessors, (213), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-02 05:05:58,428 INFO L276 IsEmpty]: Start isEmpty. Operand 2388 states and 3959 transitions. [2023-04-02 05:05:58,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2023-04-02 05:05:58,434 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:05:58,434 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:05:58,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-02 05:05:58,434 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:05:58,435 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:05:58,435 INFO L85 PathProgramCache]: Analyzing trace with hash -1227621599, now seen corresponding path program 1 times [2023-04-02 05:05:58,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:05:58,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384305166] [2023-04-02 05:05:58,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:05:58,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:05:58,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:59,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:05:59,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:59,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:05:59,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:59,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-04-02 05:05:59,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:59,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-04-02 05:05:59,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:59,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2023-04-02 05:05:59,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:59,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2023-04-02 05:05:59,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:59,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-04-02 05:05:59,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:59,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2023-04-02 05:05:59,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:59,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-04-02 05:05:59,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:59,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:05:59,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:05:59,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384305166] [2023-04-02 05:05:59,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384305166] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:05:59,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:05:59,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-04-02 05:05:59,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738312802] [2023-04-02 05:05:59,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:05:59,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-02 05:05:59,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:05:59,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-02 05:05:59,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-04-02 05:05:59,513 INFO L87 Difference]: Start difference. First operand 2388 states and 3959 transitions. Second operand has 11 states, 11 states have (on average 19.727272727272727) internal successors, (217), 5 states have internal predecessors, (217), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-02 05:06:06,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:06:06,936 INFO L93 Difference]: Finished difference Result 6632 states and 10857 transitions. [2023-04-02 05:06:06,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-04-02 05:06:06,938 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 19.727272727272727) internal successors, (217), 5 states have internal predecessors, (217), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 237 [2023-04-02 05:06:06,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:06:06,957 INFO L225 Difference]: With dead ends: 6632 [2023-04-02 05:06:06,958 INFO L226 Difference]: Without dead ends: 4782 [2023-04-02 05:06:06,964 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=168, Invalid=432, Unknown=0, NotChecked=0, Total=600 [2023-04-02 05:06:06,965 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 5527 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 4045 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5529 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 4105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 4045 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2023-04-02 05:06:06,965 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5529 Valid, 104 Invalid, 4105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 4045 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2023-04-02 05:06:06,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4782 states. [2023-04-02 05:06:07,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4782 to 4092. [2023-04-02 05:06:07,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4092 states, 3556 states have (on average 1.6985376827896512) internal successors, (6040), 3636 states have internal predecessors, (6040), 228 states have call successors, (228), 228 states have call predecessors, (228), 307 states have return successors, (387), 227 states have call predecessors, (387), 227 states have call successors, (387) [2023-04-02 05:06:07,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4092 states to 4092 states and 6655 transitions. [2023-04-02 05:06:07,981 INFO L78 Accepts]: Start accepts. Automaton has 4092 states and 6655 transitions. Word has length 237 [2023-04-02 05:06:07,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:06:07,982 INFO L495 AbstractCegarLoop]: Abstraction has 4092 states and 6655 transitions. [2023-04-02 05:06:07,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 19.727272727272727) internal successors, (217), 5 states have internal predecessors, (217), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-02 05:06:07,982 INFO L276 IsEmpty]: Start isEmpty. Operand 4092 states and 6655 transitions. [2023-04-02 05:06:07,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2023-04-02 05:06:07,991 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:06:07,991 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:06:07,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-02 05:06:07,991 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:06:07,992 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:06:07,992 INFO L85 PathProgramCache]: Analyzing trace with hash 847612314, now seen corresponding path program 1 times [2023-04-02 05:06:07,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:06:07,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002056499] [2023-04-02 05:06:07,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:06:07,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:06:08,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:08,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:06:08,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:08,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:06:08,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:08,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-04-02 05:06:08,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:08,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-04-02 05:06:08,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:08,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2023-04-02 05:06:08,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:08,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2023-04-02 05:06:08,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:08,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-04-02 05:06:08,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:08,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2023-04-02 05:06:08,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:08,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2023-04-02 05:06:08,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:08,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:06:08,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:06:08,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002056499] [2023-04-02 05:06:08,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002056499] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:06:08,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:06:08,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-04-02 05:06:08,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292886341] [2023-04-02 05:06:08,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:06:08,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 05:06:08,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:06:08,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 05:06:08,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-04-02 05:06:08,906 INFO L87 Difference]: Start difference. First operand 4092 states and 6655 transitions. Second operand has 10 states, 10 states have (on average 22.1) internal successors, (221), 4 states have internal predecessors, (221), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-02 05:06:23,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:06:23,616 INFO L93 Difference]: Finished difference Result 14906 states and 24621 transitions. [2023-04-02 05:06:23,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-04-02 05:06:23,617 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 22.1) internal successors, (221), 4 states have internal predecessors, (221), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 241 [2023-04-02 05:06:23,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:06:23,658 INFO L225 Difference]: With dead ends: 14906 [2023-04-02 05:06:23,659 INFO L226 Difference]: Without dead ends: 10913 [2023-04-02 05:06:23,672 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=175, Invalid=527, Unknown=0, NotChecked=0, Total=702 [2023-04-02 05:06:23,673 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 5847 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 8060 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5858 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 8149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 8060 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2023-04-02 05:06:23,673 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5858 Valid, 142 Invalid, 8149 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [89 Valid, 8060 Invalid, 0 Unknown, 0 Unchecked, 9.6s Time] [2023-04-02 05:06:23,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10913 states. [2023-04-02 05:06:25,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10913 to 9476. [2023-04-02 05:06:25,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9476 states, 8280 states have (on average 1.6890096618357489) internal successors, (13985), 8453 states have internal predecessors, (13985), 511 states have call successors, (511), 511 states have call predecessors, (511), 684 states have return successors, (891), 511 states have call predecessors, (891), 510 states have call successors, (891) [2023-04-02 05:06:25,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9476 states to 9476 states and 15387 transitions. [2023-04-02 05:06:25,764 INFO L78 Accepts]: Start accepts. Automaton has 9476 states and 15387 transitions. Word has length 241 [2023-04-02 05:06:25,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:06:25,765 INFO L495 AbstractCegarLoop]: Abstraction has 9476 states and 15387 transitions. [2023-04-02 05:06:25,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 22.1) internal successors, (221), 4 states have internal predecessors, (221), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-02 05:06:25,765 INFO L276 IsEmpty]: Start isEmpty. Operand 9476 states and 15387 transitions. [2023-04-02 05:06:25,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2023-04-02 05:06:25,780 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:06:25,780 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:06:25,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-04-02 05:06:25,780 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:06:25,781 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:06:25,781 INFO L85 PathProgramCache]: Analyzing trace with hash -1289462993, now seen corresponding path program 1 times [2023-04-02 05:06:25,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:06:25,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309675863] [2023-04-02 05:06:25,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:06:25,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:06:25,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:27,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:06:27,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:27,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:06:27,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:27,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-04-02 05:06:27,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:27,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-04-02 05:06:27,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:27,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2023-04-02 05:06:27,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:27,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2023-04-02 05:06:27,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:27,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-04-02 05:06:27,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:27,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2023-04-02 05:06:27,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:27,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2023-04-02 05:06:27,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:27,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:06:27,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:06:27,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309675863] [2023-04-02 05:06:27,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309675863] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:06:27,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:06:27,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-04-02 05:06:27,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370157444] [2023-04-02 05:06:27,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:06:27,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-04-02 05:06:27,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:06:27,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-04-02 05:06:27,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2023-04-02 05:06:27,607 INFO L87 Difference]: Start difference. First operand 9476 states and 15387 transitions. Second operand has 19 states, 19 states have (on average 11.631578947368421) internal successors, (221), 13 states have internal predecessors, (221), 3 states have call successors, (11), 8 states have call predecessors, (11), 8 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-02 05:07:08,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:07:08,566 INFO L93 Difference]: Finished difference Result 86434 states and 142587 transitions. [2023-04-02 05:07:08,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. [2023-04-02 05:07:08,567 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 11.631578947368421) internal successors, (221), 13 states have internal predecessors, (221), 3 states have call successors, (11), 8 states have call predecessors, (11), 8 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 241 [2023-04-02 05:07:08,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:07:08,942 INFO L225 Difference]: With dead ends: 86434 [2023-04-02 05:07:08,943 INFO L226 Difference]: Without dead ends: 78442 [2023-04-02 05:07:08,996 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 133 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6594 ImplicationChecksByTransitivity, 21.2s TimeCoverageRelationStatistics Valid=2884, Invalid=15206, Unknown=0, NotChecked=0, Total=18090 [2023-04-02 05:07:08,998 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 16287 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 12580 mSolverCounterSat, 554 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16300 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 13134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 554 IncrementalHoareTripleChecker+Valid, 12580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.3s IncrementalHoareTripleChecker+Time [2023-04-02 05:07:08,999 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16300 Valid, 237 Invalid, 13134 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [554 Valid, 12580 Invalid, 0 Unknown, 0 Unchecked, 11.3s Time] [2023-04-02 05:07:09,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78442 states. [2023-04-02 05:07:18,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78442 to 66105. [2023-04-02 05:07:18,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66105 states, 56386 states have (on average 1.6704678466285958) internal successors, (94191), 57970 states have internal predecessors, (94191), 4067 states have call successors, (4067), 4067 states have call predecessors, (4067), 5651 states have return successors, (10000), 4067 states have call predecessors, (10000), 4066 states have call successors, (10000) [2023-04-02 05:07:19,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66105 states to 66105 states and 108258 transitions. [2023-04-02 05:07:19,042 INFO L78 Accepts]: Start accepts. Automaton has 66105 states and 108258 transitions. Word has length 241 [2023-04-02 05:07:19,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:07:19,043 INFO L495 AbstractCegarLoop]: Abstraction has 66105 states and 108258 transitions. [2023-04-02 05:07:19,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 11.631578947368421) internal successors, (221), 13 states have internal predecessors, (221), 3 states have call successors, (11), 8 states have call predecessors, (11), 8 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-02 05:07:19,044 INFO L276 IsEmpty]: Start isEmpty. Operand 66105 states and 108258 transitions. [2023-04-02 05:07:19,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2023-04-02 05:07:19,081 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:07:19,081 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:07:19,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-04-02 05:07:19,082 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:07:19,082 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:07:19,082 INFO L85 PathProgramCache]: Analyzing trace with hash 460132723, now seen corresponding path program 1 times [2023-04-02 05:07:19,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:07:19,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906516314] [2023-04-02 05:07:19,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:07:19,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:07:19,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:07:19,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:07:19,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:07:19,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:07:19,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:07:20,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-04-02 05:07:20,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:07:20,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-04-02 05:07:20,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:07:20,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2023-04-02 05:07:20,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:07:20,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2023-04-02 05:07:20,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:07:20,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-04-02 05:07:20,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:07:20,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2023-04-02 05:07:20,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:07:20,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2023-04-02 05:07:20,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:07:20,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:07:20,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:07:20,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906516314] [2023-04-02 05:07:20,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906516314] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:07:20,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:07:20,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-04-02 05:07:20,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147099259] [2023-04-02 05:07:20,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:07:20,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-04-02 05:07:20,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:07:20,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-04-02 05:07:20,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-04-02 05:07:20,283 INFO L87 Difference]: Start difference. First operand 66105 states and 108258 transitions. Second operand has 12 states, 12 states have (on average 18.5) internal successors, (222), 6 states have internal predecessors, (222), 3 states have call successors, (11), 8 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-02 05:07:50,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:07:50,010 INFO L93 Difference]: Finished difference Result 225284 states and 371808 transitions. [2023-04-02 05:07:50,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2023-04-02 05:07:50,010 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 18.5) internal successors, (222), 6 states have internal predecessors, (222), 3 states have call successors, (11), 8 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 242 [2023-04-02 05:07:50,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:07:50,832 INFO L225 Difference]: With dead ends: 225284 [2023-04-02 05:07:50,832 INFO L226 Difference]: Without dead ends: 160663 [2023-04-02 05:07:50,950 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 537 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=435, Invalid=1635, Unknown=0, NotChecked=0, Total=2070 [2023-04-02 05:07:50,951 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 6457 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 7078 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6468 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 7186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 7078 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2023-04-02 05:07:50,951 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6468 Valid, 169 Invalid, 7186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 7078 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2023-04-02 05:07:51,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160663 states. [2023-04-02 05:08:09,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160663 to 136000. [2023-04-02 05:08:09,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136000 states, 115556 states have (on average 1.665383017757624) internal successors, (192445), 119129 states have internal predecessors, (192445), 8435 states have call successors, (8435), 8435 states have call predecessors, (8435), 12008 states have return successors, (21961), 8435 states have call predecessors, (21961), 8434 states have call successors, (21961) [2023-04-02 05:08:10,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136000 states to 136000 states and 222841 transitions. [2023-04-02 05:08:10,225 INFO L78 Accepts]: Start accepts. Automaton has 136000 states and 222841 transitions. Word has length 242 [2023-04-02 05:08:10,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:08:10,225 INFO L495 AbstractCegarLoop]: Abstraction has 136000 states and 222841 transitions. [2023-04-02 05:08:10,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 18.5) internal successors, (222), 6 states have internal predecessors, (222), 3 states have call successors, (11), 8 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-02 05:08:10,226 INFO L276 IsEmpty]: Start isEmpty. Operand 136000 states and 222841 transitions. [2023-04-02 05:08:10,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2023-04-02 05:08:10,268 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:08:10,268 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:08:10,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-04-02 05:08:10,269 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:08:10,269 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:08:10,269 INFO L85 PathProgramCache]: Analyzing trace with hash -1490092373, now seen corresponding path program 1 times [2023-04-02 05:08:10,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:08:10,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359157694] [2023-04-02 05:08:10,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:08:10,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:08:10,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:08:11,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:08:11,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:08:11,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:08:11,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:08:11,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-04-02 05:08:11,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:08:11,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-04-02 05:08:11,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:08:11,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2023-04-02 05:08:11,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:08:11,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2023-04-02 05:08:11,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:08:11,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-04-02 05:08:11,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:08:11,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2023-04-02 05:08:11,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:08:11,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2023-04-02 05:08:11,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:08:11,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:08:11,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:08:11,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359157694] [2023-04-02 05:08:11,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359157694] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:08:11,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:08:11,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-04-02 05:08:11,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708672903] [2023-04-02 05:08:11,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:08:11,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 05:08:11,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:08:11,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 05:08:11,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-04-02 05:08:11,542 INFO L87 Difference]: Start difference. First operand 136000 states and 222841 transitions. Second operand has 10 states, 10 states have (on average 22.2) internal successors, (222), 4 states have internal predecessors, (222), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9)