/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_opt-floodmax.3.4.ufo.BOUNDED-6.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 05:24:16,619 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 05:24:16,620 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 05:24:16,652 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 05:24:16,652 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 05:24:16,655 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 05:24:16,658 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 05:24:16,660 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 05:24:16,662 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 05:24:16,666 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 05:24:16,668 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 05:24:16,669 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 05:24:16,669 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 05:24:16,672 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 05:24:16,674 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 05:24:16,675 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 05:24:16,676 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 05:24:16,677 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 05:24:16,678 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 05:24:16,683 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 05:24:16,684 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 05:24:16,685 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 05:24:16,686 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 05:24:16,688 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 05:24:16,695 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-04-02 05:24:16,699 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 05:24:16,700 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 05:24:16,701 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 05:24:16,702 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 05:24:16,702 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 05:24:16,703 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 05:24:16,703 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 05:24:16,703 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 05:24:16,703 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 05:24:16,704 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 05:24:16,705 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 05:24:16,706 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 05:24:16,738 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 05:24:16,739 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 05:24:16,739 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 05:24:16,739 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 05:24:16,740 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 05:24:16,740 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 05:24:16,741 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-02 05:24:16,741 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-02 05:24:16,741 INFO L138 SettingsManager]: * Use SBE=true [2023-04-02 05:24:16,741 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 05:24:16,742 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 05:24:16,742 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 05:24:16,743 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 05:24:16,743 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 05:24:16,743 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 05:24:16,743 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 05:24:16,743 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 05:24:16,743 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 05:24:16,743 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 05:24:16,744 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 05:24:16,744 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 05:24:16,744 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 05:24:16,744 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-02 05:24:16,744 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 05:24:16,744 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 05:24:16,745 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 05:24:16,745 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 05:24:16,745 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 05:24:16,745 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-02 05:24:16,745 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 05:24:16,745 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-02 05:24:16,745 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 05:24:16,746 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-02 05:24:16,746 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-02 05:24:16,746 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-02 05:24:16,746 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-02 05:24:16,978 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 05:24:16,998 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 05:24:17,002 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 05:24:17,004 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 05:24:17,004 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 05:24:17,005 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.3.4.ufo.BOUNDED-6.pals.c [2023-04-02 05:24:18,180 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 05:24:18,386 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 05:24:18,386 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.3.4.ufo.BOUNDED-6.pals.c [2023-04-02 05:24:18,396 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/deed51854/164a6f66b047452c8d43adf8d1ffc216/FLAG3e216b9e6 [2023-04-02 05:24:18,415 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/deed51854/164a6f66b047452c8d43adf8d1ffc216 [2023-04-02 05:24:18,417 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 05:24:18,418 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 05:24:18,419 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 05:24:18,420 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 05:24:18,423 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 05:24:18,423 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 05:24:18" (1/1) ... [2023-04-02 05:24:18,424 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5016da9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:24:18, skipping insertion in model container [2023-04-02 05:24:18,424 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 05:24:18" (1/1) ... [2023-04-02 05:24:18,430 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 05:24:18,472 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 05:24:18,700 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_opt-floodmax.3.4.ufo.BOUNDED-6.pals.c[14373,14386] [2023-04-02 05:24:18,703 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 05:24:18,713 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 05:24:18,762 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_opt-floodmax.3.4.ufo.BOUNDED-6.pals.c[14373,14386] [2023-04-02 05:24:18,763 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 05:24:18,777 INFO L208 MainTranslator]: Completed translation [2023-04-02 05:24:18,777 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:24:18 WrapperNode [2023-04-02 05:24:18,777 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 05:24:18,778 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 05:24:18,778 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 05:24:18,778 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 05:24:18,787 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:24:18" (1/1) ... [2023-04-02 05:24:18,787 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:24:18" (1/1) ... [2023-04-02 05:24:18,796 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:24:18" (1/1) ... [2023-04-02 05:24:18,797 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:24:18" (1/1) ... [2023-04-02 05:24:18,809 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:24:18" (1/1) ... [2023-04-02 05:24:18,818 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:24:18" (1/1) ... [2023-04-02 05:24:18,820 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:24:18" (1/1) ... [2023-04-02 05:24:18,822 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:24:18" (1/1) ... [2023-04-02 05:24:18,826 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 05:24:18,827 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 05:24:18,827 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 05:24:18,827 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 05:24:18,828 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:24:18" (1/1) ... [2023-04-02 05:24:18,848 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 05:24:18,857 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 05:24:18,868 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 05:24:18,873 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 05:24:18,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 05:24:18,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 05:24:18,903 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 05:24:18,903 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-02 05:24:18,904 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2023-04-02 05:24:18,904 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2023-04-02 05:24:18,904 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2023-04-02 05:24:18,905 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2023-04-02 05:24:18,905 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2023-04-02 05:24:18,905 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 05:24:18,906 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2023-04-02 05:24:18,907 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 05:24:18,907 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 05:24:18,907 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 05:24:18,907 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 05:24:18,907 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2023-04-02 05:24:18,907 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-04-02 05:24:18,907 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-04-02 05:24:18,907 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-02 05:24:18,907 INFO L130 BoogieDeclarations]: Found specification of procedure read [2023-04-02 05:24:18,907 INFO L130 BoogieDeclarations]: Found specification of procedure write [2023-04-02 05:24:18,908 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2023-04-02 05:24:18,908 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2023-04-02 05:24:18,908 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2023-04-02 05:24:18,908 INFO L130 BoogieDeclarations]: Found specification of procedure init [2023-04-02 05:24:18,908 INFO L130 BoogieDeclarations]: Found specification of procedure check [2023-04-02 05:24:18,908 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 05:24:18,909 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 05:24:18,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 05:24:18,909 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 05:24:18,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 05:24:18,909 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 05:24:18,909 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 05:24:18,997 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 05:24:19,003 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 05:24:19,541 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 05:24:19,548 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 05:24:19,548 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-04-02 05:24:19,550 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 05:24:19 BoogieIcfgContainer [2023-04-02 05:24:19,550 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 05:24:19,556 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 05:24:19,556 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 05:24:19,559 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 05:24:19,559 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 05:24:18" (1/3) ... [2023-04-02 05:24:19,560 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@498d945d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 05:24:19, skipping insertion in model container [2023-04-02 05:24:19,560 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:24:18" (2/3) ... [2023-04-02 05:24:19,560 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@498d945d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 05:24:19, skipping insertion in model container [2023-04-02 05:24:19,561 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 05:24:19" (3/3) ... [2023-04-02 05:24:19,562 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.3.4.ufo.BOUNDED-6.pals.c [2023-04-02 05:24:19,578 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 05:24:19,578 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 05:24:19,620 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 05:24:19,625 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;@55172815, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-02 05:24:19,625 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 05:24:19,629 INFO L276 IsEmpty]: Start isEmpty. Operand has 162 states, 142 states have (on average 1.7112676056338028) internal successors, (243), 143 states have internal predecessors, (243), 9 states have call successors, (9), 9 states have call predecessors, (9), 9 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-04-02 05:24:19,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-04-02 05:24:19,640 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:24:19,640 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] [2023-04-02 05:24:19,641 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:24:19,645 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:24:19,646 INFO L85 PathProgramCache]: Analyzing trace with hash -43409961, now seen corresponding path program 1 times [2023-04-02 05:24:19,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:24:19,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115232466] [2023-04-02 05:24:19,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:24:19,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:24:19,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:20,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:24:20,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:20,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:24:20,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:20,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 05:24:20,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:20,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-04-02 05:24:20,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:20,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-04-02 05:24:20,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:20,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-04-02 05:24:20,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:20,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-04-02 05:24:20,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:20,403 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 05:24:20,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:24:20,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115232466] [2023-04-02 05:24:20,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115232466] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:24:20,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:24:20,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-02 05:24:20,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332272787] [2023-04-02 05:24:20,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:24:20,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 05:24:20,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:24:20,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 05:24:20,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-04-02 05:24:20,447 INFO L87 Difference]: Start difference. First operand has 162 states, 142 states have (on average 1.7112676056338028) internal successors, (243), 143 states have internal predecessors, (243), 9 states have call successors, (9), 9 states have call predecessors, (9), 9 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (9), 6 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-02 05:24:21,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:24:21,519 INFO L93 Difference]: Finished difference Result 264 states and 420 transitions. [2023-04-02 05:24:21,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-02 05:24:21,521 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (9), 6 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 65 [2023-04-02 05:24:21,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:24:21,530 INFO L225 Difference]: With dead ends: 264 [2023-04-02 05:24:21,530 INFO L226 Difference]: Without dead ends: 166 [2023-04-02 05:24:21,533 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-04-02 05:24:21,536 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 314 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 411 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 314 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-04-02 05:24:21,537 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [314 Valid, 67 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 411 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-04-02 05:24:21,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2023-04-02 05:24:21,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 157. [2023-04-02 05:24:21,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 139 states have (on average 1.6978417266187051) internal successors, (236), 139 states have internal predecessors, (236), 9 states have call successors, (9), 9 states have call predecessors, (9), 8 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-04-02 05:24:21,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 253 transitions. [2023-04-02 05:24:21,598 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 253 transitions. Word has length 65 [2023-04-02 05:24:21,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:24:21,598 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 253 transitions. [2023-04-02 05:24:21,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (9), 6 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-02 05:24:21,599 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 253 transitions. [2023-04-02 05:24:21,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-04-02 05:24:21,601 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:24:21,601 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] [2023-04-02 05:24:21,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-02 05:24:21,602 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:24:21,603 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:24:21,603 INFO L85 PathProgramCache]: Analyzing trace with hash -1072769259, now seen corresponding path program 1 times [2023-04-02 05:24:21,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:24:21,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039258827] [2023-04-02 05:24:21,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:24:21,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:24:21,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:22,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:24:22,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:22,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:24:22,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:22,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 05:24:22,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:22,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-04-02 05:24:22,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:22,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-04-02 05:24:22,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:22,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-04-02 05:24:22,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:22,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-04-02 05:24:22,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:22,210 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 05:24:22,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:24:22,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039258827] [2023-04-02 05:24:22,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039258827] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:24:22,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:24:22,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-04-02 05:24:22,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237162652] [2023-04-02 05:24:22,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:24:22,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-04-02 05:24:22,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:24:22,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-04-02 05:24:22,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-04-02 05:24:22,214 INFO L87 Difference]: Start difference. First operand 157 states and 253 transitions. Second operand has 12 states, 11 states have (on average 4.454545454545454) internal successors, (49), 7 states have internal predecessors, (49), 3 states have call successors, (9), 6 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-04-02 05:24:24,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:24:24,203 INFO L93 Difference]: Finished difference Result 266 states and 422 transitions. [2023-04-02 05:24:24,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-04-02 05:24:24,204 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.454545454545454) internal successors, (49), 7 states have internal predecessors, (49), 3 states have call successors, (9), 6 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 65 [2023-04-02 05:24:24,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:24:24,211 INFO L225 Difference]: With dead ends: 266 [2023-04-02 05:24:24,211 INFO L226 Difference]: Without dead ends: 175 [2023-04-02 05:24:24,212 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2023-04-02 05:24:24,213 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 323 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 1820 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 328 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 1864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 1820 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-04-02 05:24:24,213 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [328 Valid, 115 Invalid, 1864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 1820 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-04-02 05:24:24,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2023-04-02 05:24:24,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 157. [2023-04-02 05:24:24,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 139 states have (on average 1.4820143884892085) internal successors, (206), 139 states have internal predecessors, (206), 9 states have call successors, (9), 9 states have call predecessors, (9), 8 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-04-02 05:24:24,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 223 transitions. [2023-04-02 05:24:24,262 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 223 transitions. Word has length 65 [2023-04-02 05:24:24,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:24:24,263 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 223 transitions. [2023-04-02 05:24:24,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.454545454545454) internal successors, (49), 7 states have internal predecessors, (49), 3 states have call successors, (9), 6 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-04-02 05:24:24,263 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 223 transitions. [2023-04-02 05:24:24,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-04-02 05:24:24,269 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:24:24,269 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] [2023-04-02 05:24:24,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-02 05:24:24,270 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:24:24,270 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:24:24,270 INFO L85 PathProgramCache]: Analyzing trace with hash -23685807, now seen corresponding path program 1 times [2023-04-02 05:24:24,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:24:24,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919652978] [2023-04-02 05:24:24,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:24:24,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:24:24,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:24,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:24:24,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:24,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:24:24,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:24,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-04-02 05:24:24,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:24,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-04-02 05:24:24,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:24,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-04-02 05:24:24,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:24,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-04-02 05:24:24,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:24,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-04-02 05:24:24,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:24,696 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 05:24:24,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:24:24,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919652978] [2023-04-02 05:24:24,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919652978] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:24:24,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:24:24,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 05:24:24,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455358295] [2023-04-02 05:24:24,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:24:24,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-02 05:24:24,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:24:24,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-02 05:24:24,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-04-02 05:24:24,698 INFO L87 Difference]: Start difference. First operand 157 states and 223 transitions. Second operand has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (9), 6 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-04-02 05:24:26,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:24:26,153 INFO L93 Difference]: Finished difference Result 337 states and 505 transitions. [2023-04-02 05:24:26,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-04-02 05:24:26,154 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (9), 6 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 94 [2023-04-02 05:24:26,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:24:26,157 INFO L225 Difference]: With dead ends: 337 [2023-04-02 05:24:26,157 INFO L226 Difference]: Without dead ends: 252 [2023-04-02 05:24:26,158 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2023-04-02 05:24:26,159 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 882 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 743 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 886 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 782 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 743 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-04-02 05:24:26,160 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [886 Valid, 60 Invalid, 782 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 743 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-04-02 05:24:26,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2023-04-02 05:24:26,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 228. [2023-04-02 05:24:26,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 199 states have (on average 1.4974874371859297) internal successors, (298), 200 states have internal predecessors, (298), 14 states have call successors, (14), 14 states have call predecessors, (14), 14 states have return successors, (16), 13 states have call predecessors, (16), 13 states have call successors, (16) [2023-04-02 05:24:26,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 328 transitions. [2023-04-02 05:24:26,200 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 328 transitions. Word has length 94 [2023-04-02 05:24:26,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:24:26,201 INFO L495 AbstractCegarLoop]: Abstraction has 228 states and 328 transitions. [2023-04-02 05:24:26,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (9), 6 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-04-02 05:24:26,202 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 328 transitions. [2023-04-02 05:24:26,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-04-02 05:24:26,205 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:24:26,205 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] [2023-04-02 05:24:26,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-02 05:24:26,205 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:24:26,206 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:24:26,206 INFO L85 PathProgramCache]: Analyzing trace with hash 1835124415, now seen corresponding path program 1 times [2023-04-02 05:24:26,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:24:26,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437114219] [2023-04-02 05:24:26,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:24:26,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:24:26,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:26,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:24:26,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:26,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:24:26,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:26,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-04-02 05:24:26,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:26,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-04-02 05:24:26,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:26,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-04-02 05:24:26,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:26,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-04-02 05:24:26,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:26,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-04-02 05:24:26,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:26,633 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 05:24:26,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:24:26,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437114219] [2023-04-02 05:24:26,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437114219] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:24:26,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:24:26,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 05:24:26,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037816852] [2023-04-02 05:24:26,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:24:26,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-02 05:24:26,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:24:26,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-02 05:24:26,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-04-02 05:24:26,643 INFO L87 Difference]: Start difference. First operand 228 states and 328 transitions. Second operand has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (9), 6 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-04-02 05:24:28,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:24:28,148 INFO L93 Difference]: Finished difference Result 564 states and 840 transitions. [2023-04-02 05:24:28,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-04-02 05:24:28,150 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (9), 6 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 96 [2023-04-02 05:24:28,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:24:28,152 INFO L225 Difference]: With dead ends: 564 [2023-04-02 05:24:28,152 INFO L226 Difference]: Without dead ends: 408 [2023-04-02 05:24:28,153 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=102, Invalid=240, Unknown=0, NotChecked=0, Total=342 [2023-04-02 05:24:28,154 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 817 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 773 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 820 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 801 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 773 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-04-02 05:24:28,154 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [820 Valid, 64 Invalid, 801 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 773 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-04-02 05:24:28,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2023-04-02 05:24:28,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 370. [2023-04-02 05:24:28,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 318 states have (on average 1.5220125786163523) internal successors, (484), 322 states have internal predecessors, (484), 24 states have call successors, (24), 24 states have call predecessors, (24), 27 states have return successors, (33), 23 states have call predecessors, (33), 23 states have call successors, (33) [2023-04-02 05:24:28,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 541 transitions. [2023-04-02 05:24:28,244 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 541 transitions. Word has length 96 [2023-04-02 05:24:28,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:24:28,244 INFO L495 AbstractCegarLoop]: Abstraction has 370 states and 541 transitions. [2023-04-02 05:24:28,244 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (9), 6 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-04-02 05:24:28,245 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 541 transitions. [2023-04-02 05:24:28,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-04-02 05:24:28,246 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:24:28,246 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] [2023-04-02 05:24:28,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-02 05:24:28,246 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:24:28,246 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:24:28,247 INFO L85 PathProgramCache]: Analyzing trace with hash 1395261681, now seen corresponding path program 1 times [2023-04-02 05:24:28,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:24:28,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305403938] [2023-04-02 05:24:28,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:24:28,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:24:28,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:28,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:24:28,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:28,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:24:28,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:28,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-04-02 05:24:28,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:28,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-04-02 05:24:28,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:28,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-04-02 05:24:28,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:28,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 05:24:28,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:28,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-04-02 05:24:28,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:28,624 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 05:24:28,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:24:28,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305403938] [2023-04-02 05:24:28,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305403938] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:24:28,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:24:28,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 05:24:28,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715429653] [2023-04-02 05:24:28,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:24:28,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-02 05:24:28,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:24:28,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-02 05:24:28,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-04-02 05:24:28,628 INFO L87 Difference]: Start difference. First operand 370 states and 541 transitions. Second operand has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (9), 6 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-04-02 05:24:30,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:24:30,106 INFO L93 Difference]: Finished difference Result 1014 states and 1515 transitions. [2023-04-02 05:24:30,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-04-02 05:24:30,108 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (9), 6 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 98 [2023-04-02 05:24:30,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:24:30,113 INFO L225 Difference]: With dead ends: 1014 [2023-04-02 05:24:30,113 INFO L226 Difference]: Without dead ends: 716 [2023-04-02 05:24:30,114 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=102, Invalid=240, Unknown=0, NotChecked=0, Total=342 [2023-04-02 05:24:30,115 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 1512 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 702 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1514 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 766 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-04-02 05:24:30,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1514 Valid, 59 Invalid, 766 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 702 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-04-02 05:24:30,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2023-04-02 05:24:30,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 642. [2023-04-02 05:24:30,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 642 states, 542 states have (on average 1.5276752767527675) internal successors, (828), 554 states have internal predecessors, (828), 44 states have call successors, (44), 44 states have call predecessors, (44), 55 states have return successors, (71), 43 states have call predecessors, (71), 43 states have call successors, (71) [2023-04-02 05:24:30,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 943 transitions. [2023-04-02 05:24:30,210 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 943 transitions. Word has length 98 [2023-04-02 05:24:30,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:24:30,213 INFO L495 AbstractCegarLoop]: Abstraction has 642 states and 943 transitions. [2023-04-02 05:24:30,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (9), 6 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-04-02 05:24:30,213 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 943 transitions. [2023-04-02 05:24:30,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-04-02 05:24:30,215 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:24:30,216 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] [2023-04-02 05:24:30,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-02 05:24:30,216 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:24:30,216 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:24:30,216 INFO L85 PathProgramCache]: Analyzing trace with hash -1434740961, now seen corresponding path program 1 times [2023-04-02 05:24:30,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:24:30,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713695979] [2023-04-02 05:24:30,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:24:30,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:24:30,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:30,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:24:30,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:30,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:24:30,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:30,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-04-02 05:24:30,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:30,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-04-02 05:24:30,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:30,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-04-02 05:24:30,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:30,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 05:24:30,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:30,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 05:24:30,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:30,833 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 05:24:30,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:24:30,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713695979] [2023-04-02 05:24:30,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713695979] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:24:30,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:24:30,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-04-02 05:24:30,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672392329] [2023-04-02 05:24:30,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:24:30,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 05:24:30,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:24:30,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 05:24:30,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2023-04-02 05:24:30,836 INFO L87 Difference]: Start difference. First operand 642 states and 943 transitions. Second operand has 13 states, 13 states have (on average 6.461538461538462) internal successors, (84), 9 states have internal predecessors, (84), 3 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-02 05:24:36,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:24:36,404 INFO L93 Difference]: Finished difference Result 4725 states and 7254 transitions. [2023-04-02 05:24:36,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2023-04-02 05:24:36,405 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.461538461538462) internal successors, (84), 9 states have internal predecessors, (84), 3 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 100 [2023-04-02 05:24:36,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:24:36,432 INFO L225 Difference]: With dead ends: 4725 [2023-04-02 05:24:36,433 INFO L226 Difference]: Without dead ends: 4155 [2023-04-02 05:24:36,437 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1049 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=724, Invalid=2816, Unknown=0, NotChecked=0, Total=3540 [2023-04-02 05:24:36,441 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 2499 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 2984 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2508 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 3117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 2984 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-04-02 05:24:36,443 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2508 Valid, 178 Invalid, 3117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 2984 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-04-02 05:24:36,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4155 states. [2023-04-02 05:24:36,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4155 to 3709. [2023-04-02 05:24:36,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3709 states, 3088 states have (on average 1.5336787564766838) internal successors, (4736), 3181 states have internal predecessors, (4736), 264 states have call successors, (264), 264 states have call predecessors, (264), 356 states have return successors, (613), 263 states have call predecessors, (613), 263 states have call successors, (613) [2023-04-02 05:24:36,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3709 states to 3709 states and 5613 transitions. [2023-04-02 05:24:36,868 INFO L78 Accepts]: Start accepts. Automaton has 3709 states and 5613 transitions. Word has length 100 [2023-04-02 05:24:36,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:24:36,869 INFO L495 AbstractCegarLoop]: Abstraction has 3709 states and 5613 transitions. [2023-04-02 05:24:36,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.461538461538462) internal successors, (84), 9 states have internal predecessors, (84), 3 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-02 05:24:36,870 INFO L276 IsEmpty]: Start isEmpty. Operand 3709 states and 5613 transitions. [2023-04-02 05:24:36,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-04-02 05:24:36,872 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:24:36,872 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] [2023-04-02 05:24:36,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-02 05:24:36,873 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:24:36,873 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:24:36,873 INFO L85 PathProgramCache]: Analyzing trace with hash 353342457, now seen corresponding path program 1 times [2023-04-02 05:24:36,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:24:36,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384671416] [2023-04-02 05:24:36,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:24:36,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:24:36,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:37,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:24:37,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:37,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:24:37,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:37,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-04-02 05:24:37,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:37,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-04-02 05:24:37,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:37,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-04-02 05:24:37,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:37,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 05:24:37,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:37,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 05:24:37,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:37,332 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 05:24:37,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:24:37,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384671416] [2023-04-02 05:24:37,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384671416] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:24:37,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:24:37,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-04-02 05:24:37,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640552571] [2023-04-02 05:24:37,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:24:37,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 05:24:37,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:24:37,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 05:24:37,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-04-02 05:24:37,334 INFO L87 Difference]: Start difference. First operand 3709 states and 5613 transitions. Second operand has 10 states, 10 states have (on average 8.5) internal successors, (85), 6 states have internal predecessors, (85), 3 states have call successors, (9), 6 states have call predecessors, (9), 4 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-02 05:24:40,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:24:40,614 INFO L93 Difference]: Finished difference Result 13747 states and 21094 transitions. [2023-04-02 05:24:40,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-04-02 05:24:40,615 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.5) internal successors, (85), 6 states have internal predecessors, (85), 3 states have call successors, (9), 6 states have call predecessors, (9), 4 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 101 [2023-04-02 05:24:40,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:24:40,693 INFO L225 Difference]: With dead ends: 13747 [2023-04-02 05:24:40,693 INFO L226 Difference]: Without dead ends: 10110 [2023-04-02 05:24:40,706 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 261 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=261, Invalid=861, Unknown=0, NotChecked=0, Total=1122 [2023-04-02 05:24:40,710 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 1949 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 1737 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1957 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 1834 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 1737 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-04-02 05:24:40,710 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1957 Valid, 135 Invalid, 1834 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 1737 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-04-02 05:24:40,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10110 states. [2023-04-02 05:24:41,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10110 to 9086. [2023-04-02 05:24:41,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9086 states, 7504 states have (on average 1.5165245202558635) internal successors, (11380), 7758 states have internal predecessors, (11380), 664 states have call successors, (664), 664 states have call predecessors, (664), 917 states have return successors, (1693), 663 states have call predecessors, (1693), 663 states have call successors, (1693) [2023-04-02 05:24:41,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9086 states to 9086 states and 13737 transitions. [2023-04-02 05:24:41,669 INFO L78 Accepts]: Start accepts. Automaton has 9086 states and 13737 transitions. Word has length 101 [2023-04-02 05:24:41,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:24:41,669 INFO L495 AbstractCegarLoop]: Abstraction has 9086 states and 13737 transitions. [2023-04-02 05:24:41,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.5) internal successors, (85), 6 states have internal predecessors, (85), 3 states have call successors, (9), 6 states have call predecessors, (9), 4 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-02 05:24:41,670 INFO L276 IsEmpty]: Start isEmpty. Operand 9086 states and 13737 transitions. [2023-04-02 05:24:41,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-04-02 05:24:41,674 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:24:41,674 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] [2023-04-02 05:24:41,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-02 05:24:41,675 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:24:41,675 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:24:41,675 INFO L85 PathProgramCache]: Analyzing trace with hash -1751132195, now seen corresponding path program 1 times [2023-04-02 05:24:41,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:24:41,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075666484] [2023-04-02 05:24:41,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:24:41,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:24:41,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:41,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:24:41,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:41,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:24:41,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:42,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-04-02 05:24:42,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:42,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-04-02 05:24:42,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:42,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-04-02 05:24:42,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:42,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-04-02 05:24:42,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:42,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-04-02 05:24:42,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:42,152 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 05:24:42,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:24:42,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075666484] [2023-04-02 05:24:42,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075666484] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:24:42,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:24:42,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-04-02 05:24:42,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254063603] [2023-04-02 05:24:42,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:24:42,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 05:24:42,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:24:42,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 05:24:42,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2023-04-02 05:24:42,154 INFO L87 Difference]: Start difference. First operand 9086 states and 13737 transitions. Second operand has 13 states, 13 states have (on average 6.615384615384615) internal successors, (86), 9 states have internal predecessors, (86), 4 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2023-04-02 05:24:48,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:24:48,611 INFO L93 Difference]: Finished difference Result 18339 states and 28031 transitions. [2023-04-02 05:24:48,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2023-04-02 05:24:48,611 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.615384615384615) internal successors, (86), 9 states have internal predecessors, (86), 4 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) Word has length 102 [2023-04-02 05:24:48,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:24:48,739 INFO L225 Difference]: With dead ends: 18339 [2023-04-02 05:24:48,739 INFO L226 Difference]: Without dead ends: 13796 [2023-04-02 05:24:48,756 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1627 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=854, Invalid=3976, Unknown=0, NotChecked=0, Total=4830 [2023-04-02 05:24:48,757 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 3377 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 3479 mSolverCounterSat, 172 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3391 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 3651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 172 IncrementalHoareTripleChecker+Valid, 3479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-04-02 05:24:48,758 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3391 Valid, 222 Invalid, 3651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [172 Valid, 3479 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-04-02 05:24:48,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13796 states. [2023-04-02 05:24:49,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13796 to 11823. [2023-04-02 05:24:49,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11823 states, 9819 states have (on average 1.5261228230980752) internal successors, (14985), 10117 states have internal predecessors, (14985), 853 states have call successors, (853), 853 states have call predecessors, (853), 1150 states have return successors, (2113), 852 states have call predecessors, (2113), 852 states have call successors, (2113) [2023-04-02 05:24:49,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11823 states to 11823 states and 17951 transitions. [2023-04-02 05:24:49,936 INFO L78 Accepts]: Start accepts. Automaton has 11823 states and 17951 transitions. Word has length 102 [2023-04-02 05:24:49,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:24:49,936 INFO L495 AbstractCegarLoop]: Abstraction has 11823 states and 17951 transitions. [2023-04-02 05:24:49,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.615384615384615) internal successors, (86), 9 states have internal predecessors, (86), 4 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2023-04-02 05:24:49,937 INFO L276 IsEmpty]: Start isEmpty. Operand 11823 states and 17951 transitions. [2023-04-02 05:24:49,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-04-02 05:24:49,942 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:24:49,942 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] [2023-04-02 05:24:49,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-04-02 05:24:49,942 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:24:49,943 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:24:49,943 INFO L85 PathProgramCache]: Analyzing trace with hash 393200769, now seen corresponding path program 1 times [2023-04-02 05:24:49,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:24:49,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883368817] [2023-04-02 05:24:49,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:24:49,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:24:49,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:50,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:24:50,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:50,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:24:50,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:50,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-04-02 05:24:50,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:50,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-04-02 05:24:50,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:50,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-04-02 05:24:50,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:50,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-04-02 05:24:50,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:50,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-04-02 05:24:50,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:50,397 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 05:24:50,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:24:50,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883368817] [2023-04-02 05:24:50,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883368817] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:24:50,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:24:50,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-04-02 05:24:50,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181429632] [2023-04-02 05:24:50,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:24:50,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 05:24:50,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:24:50,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 05:24:50,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2023-04-02 05:24:50,400 INFO L87 Difference]: Start difference. First operand 11823 states and 17951 transitions. Second operand has 13 states, 13 states have (on average 6.615384615384615) internal successors, (86), 9 states have internal predecessors, (86), 4 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2023-04-02 05:24:57,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:24:57,033 INFO L93 Difference]: Finished difference Result 18291 states and 28042 transitions. [2023-04-02 05:24:57,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2023-04-02 05:24:57,034 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.615384615384615) internal successors, (86), 9 states have internal predecessors, (86), 4 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) Word has length 102 [2023-04-02 05:24:57,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:24:57,102 INFO L225 Difference]: With dead ends: 18291 [2023-04-02 05:24:57,103 INFO L226 Difference]: Without dead ends: 13837 [2023-04-02 05:24:57,120 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1480 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=815, Invalid=3741, Unknown=0, NotChecked=0, Total=4556 [2023-04-02 05:24:57,122 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 2230 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 3863 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2241 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 3982 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 3863 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-04-02 05:24:57,123 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2241 Valid, 240 Invalid, 3982 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 3863 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-04-02 05:24:57,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13837 states. [2023-04-02 05:24:58,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13837 to 11597. [2023-04-02 05:24:58,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11597 states, 9635 states have (on average 1.5253762324857292) internal successors, (14697), 9931 states have internal predecessors, (14697), 833 states have call successors, (833), 833 states have call predecessors, (833), 1128 states have return successors, (2046), 832 states have call predecessors, (2046), 832 states have call successors, (2046) [2023-04-02 05:24:58,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11597 states to 11597 states and 17576 transitions. [2023-04-02 05:24:58,247 INFO L78 Accepts]: Start accepts. Automaton has 11597 states and 17576 transitions. Word has length 102 [2023-04-02 05:24:58,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:24:58,248 INFO L495 AbstractCegarLoop]: Abstraction has 11597 states and 17576 transitions. [2023-04-02 05:24:58,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.615384615384615) internal successors, (86), 9 states have internal predecessors, (86), 4 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2023-04-02 05:24:58,248 INFO L276 IsEmpty]: Start isEmpty. Operand 11597 states and 17576 transitions. [2023-04-02 05:24:58,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-04-02 05:24:58,252 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:24:58,252 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] [2023-04-02 05:24:58,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-04-02 05:24:58,253 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:24:58,253 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:24:58,253 INFO L85 PathProgramCache]: Analyzing trace with hash 2113308573, now seen corresponding path program 1 times [2023-04-02 05:24:58,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:24:58,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326155997] [2023-04-02 05:24:58,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:24:58,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:24:58,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:58,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:24:58,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:58,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:24:58,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:58,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-04-02 05:24:58,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:58,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-04-02 05:24:58,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:58,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-04-02 05:24:58,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:58,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 05:24:58,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:58,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-04-02 05:24:58,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:24:58,764 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 05:24:58,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:24:58,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326155997] [2023-04-02 05:24:58,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326155997] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:24:58,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:24:58,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-04-02 05:24:58,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545882824] [2023-04-02 05:24:58,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:24:58,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 05:24:58,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:24:58,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 05:24:58,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2023-04-02 05:24:58,766 INFO L87 Difference]: Start difference. First operand 11597 states and 17576 transitions. Second operand has 13 states, 13 states have (on average 6.615384615384615) internal successors, (86), 9 states have internal predecessors, (86), 4 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2023-04-02 05:25:04,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:25:04,946 INFO L93 Difference]: Finished difference Result 23774 states and 36359 transitions. [2023-04-02 05:25:04,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2023-04-02 05:25:04,947 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.615384615384615) internal successors, (86), 9 states have internal predecessors, (86), 4 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) Word has length 102 [2023-04-02 05:25:04,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:25:05,013 INFO L225 Difference]: With dead ends: 23774 [2023-04-02 05:25:05,013 INFO L226 Difference]: Without dead ends: 16623 [2023-04-02 05:25:05,036 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1114 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=695, Invalid=2965, Unknown=0, NotChecked=0, Total=3660 [2023-04-02 05:25:05,037 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 3032 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 3074 mSolverCounterSat, 164 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3043 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 3238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 164 IncrementalHoareTripleChecker+Valid, 3074 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-04-02 05:25:05,038 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3043 Valid, 202 Invalid, 3238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [164 Valid, 3074 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-04-02 05:25:05,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16623 states. [2023-04-02 05:25:06,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16623 to 14358. [2023-04-02 05:25:06,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14358 states, 11991 states have (on average 1.534484196480694) internal successors, (18400), 12346 states have internal predecessors, (18400), 1006 states have call successors, (1006), 1006 states have call predecessors, (1006), 1360 states have return successors, (2424), 1005 states have call predecessors, (2424), 1005 states have call successors, (2424) [2023-04-02 05:25:06,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14358 states to 14358 states and 21830 transitions. [2023-04-02 05:25:06,327 INFO L78 Accepts]: Start accepts. Automaton has 14358 states and 21830 transitions. Word has length 102 [2023-04-02 05:25:06,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:25:06,327 INFO L495 AbstractCegarLoop]: Abstraction has 14358 states and 21830 transitions. [2023-04-02 05:25:06,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.615384615384615) internal successors, (86), 9 states have internal predecessors, (86), 4 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2023-04-02 05:25:06,327 INFO L276 IsEmpty]: Start isEmpty. Operand 14358 states and 21830 transitions. [2023-04-02 05:25:06,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-04-02 05:25:06,331 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:25:06,331 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] [2023-04-02 05:25:06,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-04-02 05:25:06,331 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:25:06,332 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:25:06,332 INFO L85 PathProgramCache]: Analyzing trace with hash -102331370, now seen corresponding path program 1 times [2023-04-02 05:25:06,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:25:06,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59423245] [2023-04-02 05:25:06,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:25:06,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:25:06,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:06,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:25:06,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:06,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:25:06,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:06,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-04-02 05:25:06,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:06,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-04-02 05:25:06,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:06,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-04-02 05:25:06,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:06,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 05:25:06,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:06,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 05:25:06,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:06,852 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 05:25:06,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:25:06,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59423245] [2023-04-02 05:25:06,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59423245] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:25:06,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:25:06,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-04-02 05:25:06,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639960173] [2023-04-02 05:25:06,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:25:06,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 05:25:06,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:25:06,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 05:25:06,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-04-02 05:25:06,854 INFO L87 Difference]: Start difference. First operand 14358 states and 21830 transitions. Second operand has 10 states, 10 states have (on average 8.6) internal successors, (86), 6 states have internal predecessors, (86), 3 states have call successors, (9), 6 states have call predecessors, (9), 4 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-02 05:25:11,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:25:11,188 INFO L93 Difference]: Finished difference Result 46190 states and 70908 transitions. [2023-04-02 05:25:11,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-04-02 05:25:11,189 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.6) internal successors, (86), 6 states have internal predecessors, (86), 3 states have call successors, (9), 6 states have call predecessors, (9), 4 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 102 [2023-04-02 05:25:11,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:25:11,315 INFO L225 Difference]: With dead ends: 46190 [2023-04-02 05:25:11,316 INFO L226 Difference]: Without dead ends: 31904 [2023-04-02 05:25:11,356 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=261, Invalid=861, Unknown=0, NotChecked=0, Total=1122 [2023-04-02 05:25:11,357 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 1803 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 1783 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1811 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 1872 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 1783 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-04-02 05:25:11,357 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1811 Valid, 121 Invalid, 1872 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 1783 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-04-02 05:25:11,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31904 states. [2023-04-02 05:25:13,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31904 to 28445. [2023-04-02 05:25:13,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28445 states, 23687 states have (on average 1.5232405961075695) internal successors, (36081), 24459 states have internal predecessors, (36081), 1993 states have call successors, (1993), 1993 states have call predecessors, (1993), 2764 states have return successors, (5143), 1992 states have call predecessors, (5143), 1992 states have call successors, (5143) [2023-04-02 05:25:13,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28445 states to 28445 states and 43217 transitions. [2023-04-02 05:25:13,658 INFO L78 Accepts]: Start accepts. Automaton has 28445 states and 43217 transitions. Word has length 102 [2023-04-02 05:25:13,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:25:13,658 INFO L495 AbstractCegarLoop]: Abstraction has 28445 states and 43217 transitions. [2023-04-02 05:25:13,658 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.6) internal successors, (86), 6 states have internal predecessors, (86), 3 states have call successors, (9), 6 states have call predecessors, (9), 4 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-02 05:25:13,658 INFO L276 IsEmpty]: Start isEmpty. Operand 28445 states and 43217 transitions. [2023-04-02 05:25:13,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-04-02 05:25:13,668 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:25:13,669 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] [2023-04-02 05:25:13,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-04-02 05:25:13,669 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:25:13,669 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:25:13,669 INFO L85 PathProgramCache]: Analyzing trace with hash -864851205, now seen corresponding path program 1 times [2023-04-02 05:25:13,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:25:13,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925705774] [2023-04-02 05:25:13,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:25:13,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:25:13,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:13,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:25:13,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:13,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:25:13,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:13,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-04-02 05:25:13,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:13,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-04-02 05:25:13,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:14,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-04-02 05:25:14,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:14,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-04-02 05:25:14,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:14,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-04-02 05:25:14,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:14,061 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 05:25:14,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:25:14,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925705774] [2023-04-02 05:25:14,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925705774] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:25:14,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:25:14,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-04-02 05:25:14,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655518667] [2023-04-02 05:25:14,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:25:14,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-02 05:25:14,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:25:14,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-02 05:25:14,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-04-02 05:25:14,063 INFO L87 Difference]: Start difference. First operand 28445 states and 43217 transitions. Second operand has 11 states, 11 states have (on average 7.909090909090909) internal successors, (87), 7 states have internal predecessors, (87), 4 states have call successors, (9), 6 states have call predecessors, (9), 4 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2023-04-02 05:25:19,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:25:19,157 INFO L93 Difference]: Finished difference Result 60536 states and 92982 transitions. [2023-04-02 05:25:19,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-04-02 05:25:19,161 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.909090909090909) internal successors, (87), 7 states have internal predecessors, (87), 4 states have call successors, (9), 6 states have call predecessors, (9), 4 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) Word has length 103 [2023-04-02 05:25:19,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:25:19,338 INFO L225 Difference]: With dead ends: 60536 [2023-04-02 05:25:19,338 INFO L226 Difference]: Without dead ends: 46215 [2023-04-02 05:25:19,382 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=194, Invalid=618, Unknown=0, NotChecked=0, Total=812 [2023-04-02 05:25:19,383 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 1459 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 2139 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1468 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 2182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 2139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-04-02 05:25:19,383 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1468 Valid, 114 Invalid, 2182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 2139 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-04-02 05:25:19,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46215 states. [2023-04-02 05:25:22,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46215 to 41102. [2023-04-02 05:25:22,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41102 states, 34258 states have (on average 1.5281394126919259) internal successors, (52351), 35392 states have internal predecessors, (52351), 2855 states have call successors, (2855), 2855 states have call predecessors, (2855), 3988 states have return successors, (7325), 2854 states have call predecessors, (7325), 2854 states have call successors, (7325) [2023-04-02 05:25:22,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41102 states to 41102 states and 62531 transitions. [2023-04-02 05:25:22,895 INFO L78 Accepts]: Start accepts. Automaton has 41102 states and 62531 transitions. Word has length 103 [2023-04-02 05:25:22,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:25:22,897 INFO L495 AbstractCegarLoop]: Abstraction has 41102 states and 62531 transitions. [2023-04-02 05:25:22,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.909090909090909) internal successors, (87), 7 states have internal predecessors, (87), 4 states have call successors, (9), 6 states have call predecessors, (9), 4 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2023-04-02 05:25:22,898 INFO L276 IsEmpty]: Start isEmpty. Operand 41102 states and 62531 transitions. [2023-04-02 05:25:22,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-04-02 05:25:22,903 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:25:22,903 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] [2023-04-02 05:25:22,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-04-02 05:25:22,903 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:25:22,904 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:25:22,904 INFO L85 PathProgramCache]: Analyzing trace with hash -1708856707, now seen corresponding path program 1 times [2023-04-02 05:25:22,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:25:22,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782592071] [2023-04-02 05:25:22,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:25:22,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:25:22,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:23,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:25:23,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:23,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:25:23,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:23,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-04-02 05:25:23,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:23,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-04-02 05:25:23,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:23,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-04-02 05:25:23,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:23,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-04-02 05:25:23,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:23,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-04-02 05:25:23,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:23,308 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 05:25:23,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:25:23,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782592071] [2023-04-02 05:25:23,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782592071] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:25:23,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:25:23,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-04-02 05:25:23,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874451639] [2023-04-02 05:25:23,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:25:23,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-02 05:25:23,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:25:23,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-02 05:25:23,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-04-02 05:25:23,310 INFO L87 Difference]: Start difference. First operand 41102 states and 62531 transitions. Second operand has 11 states, 11 states have (on average 7.909090909090909) internal successors, (87), 7 states have internal predecessors, (87), 4 states have call successors, (9), 6 states have call predecessors, (9), 4 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2023-04-02 05:25:28,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:25:28,357 INFO L93 Difference]: Finished difference Result 66866 states and 102360 transitions. [2023-04-02 05:25:28,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-04-02 05:25:28,358 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.909090909090909) internal successors, (87), 7 states have internal predecessors, (87), 4 states have call successors, (9), 6 states have call predecessors, (9), 4 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) Word has length 103 [2023-04-02 05:25:28,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:25:28,512 INFO L225 Difference]: With dead ends: 66866 [2023-04-02 05:25:28,512 INFO L226 Difference]: Without dead ends: 41155 [2023-04-02 05:25:28,569 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=194, Invalid=618, Unknown=0, NotChecked=0, Total=812 [2023-04-02 05:25:28,570 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 1339 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 2211 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1349 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 2250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 2211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-04-02 05:25:28,570 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1349 Valid, 118 Invalid, 2250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 2211 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-04-02 05:25:28,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41155 states. [2023-04-02 05:25:31,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41155 to 36558. [2023-04-02 05:25:31,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36558 states, 30487 states have (on average 1.527437924361203) internal successors, (46567), 31500 states have internal predecessors, (46567), 2529 states have call successors, (2529), 2529 states have call predecessors, (2529), 3541 states have return successors, (6467), 2528 states have call predecessors, (6467), 2528 states have call successors, (6467) [2023-04-02 05:25:31,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36558 states to 36558 states and 55563 transitions. [2023-04-02 05:25:31,564 INFO L78 Accepts]: Start accepts. Automaton has 36558 states and 55563 transitions. Word has length 103 [2023-04-02 05:25:31,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:25:31,564 INFO L495 AbstractCegarLoop]: Abstraction has 36558 states and 55563 transitions. [2023-04-02 05:25:31,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.909090909090909) internal successors, (87), 7 states have internal predecessors, (87), 4 states have call successors, (9), 6 states have call predecessors, (9), 4 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2023-04-02 05:25:31,564 INFO L276 IsEmpty]: Start isEmpty. Operand 36558 states and 55563 transitions. [2023-04-02 05:25:31,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-04-02 05:25:31,570 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:25:31,570 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] [2023-04-02 05:25:31,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-04-02 05:25:31,570 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:25:31,571 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:25:31,571 INFO L85 PathProgramCache]: Analyzing trace with hash -1395003056, now seen corresponding path program 1 times [2023-04-02 05:25:31,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:25:31,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558404623] [2023-04-02 05:25:31,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:25:31,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:25:31,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:31,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:25:31,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:31,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:25:31,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:31,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-04-02 05:25:31,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:31,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-04-02 05:25:31,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:31,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-04-02 05:25:31,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:31,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 05:25:31,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:31,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 05:25:31,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:31,975 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 05:25:31,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:25:31,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558404623] [2023-04-02 05:25:31,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558404623] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:25:31,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:25:31,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-04-02 05:25:31,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494408586] [2023-04-02 05:25:31,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:25:31,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 05:25:31,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:25:31,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 05:25:31,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-04-02 05:25:31,977 INFO L87 Difference]: Start difference. First operand 36558 states and 55563 transitions. Second operand has 10 states, 10 states have (on average 8.7) internal successors, (87), 6 states have internal predecessors, (87), 3 states have call successors, (9), 6 states have call predecessors, (9), 4 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-02 05:25:39,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:25:39,486 INFO L93 Difference]: Finished difference Result 119601 states and 183540 transitions. [2023-04-02 05:25:39,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-04-02 05:25:39,492 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 6 states have internal predecessors, (87), 3 states have call successors, (9), 6 states have call predecessors, (9), 4 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 103 [2023-04-02 05:25:39,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:25:39,794 INFO L225 Difference]: With dead ends: 119601 [2023-04-02 05:25:39,794 INFO L226 Difference]: Without dead ends: 83115 [2023-04-02 05:25:39,875 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 269 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=261, Invalid=861, Unknown=0, NotChecked=0, Total=1122 [2023-04-02 05:25:39,875 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 1216 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 1966 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1224 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 2019 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 1966 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-04-02 05:25:39,876 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1224 Valid, 122 Invalid, 2019 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 1966 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-04-02 05:25:39,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83115 states. [2023-04-02 05:25:45,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83115 to 73996. [2023-04-02 05:25:45,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73996 states, 61633 states have (on average 1.5202245550273392) internal successors, (93696), 63888 states have internal predecessors, (93696), 5054 states have call successors, (5054), 5054 states have call predecessors, (5054), 7308 states have return successors, (13853), 5053 states have call predecessors, (13853), 5053 states have call successors, (13853) [2023-04-02 05:25:45,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73996 states to 73996 states and 112603 transitions. [2023-04-02 05:25:45,697 INFO L78 Accepts]: Start accepts. Automaton has 73996 states and 112603 transitions. Word has length 103 [2023-04-02 05:25:45,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:25:45,698 INFO L495 AbstractCegarLoop]: Abstraction has 73996 states and 112603 transitions. [2023-04-02 05:25:45,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 6 states have internal predecessors, (87), 3 states have call successors, (9), 6 states have call predecessors, (9), 4 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-02 05:25:45,698 INFO L276 IsEmpty]: Start isEmpty. Operand 73996 states and 112603 transitions. [2023-04-02 05:25:45,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-04-02 05:25:45,704 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:25:45,705 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] [2023-04-02 05:25:45,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-04-02 05:25:45,705 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:25:45,705 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:25:45,705 INFO L85 PathProgramCache]: Analyzing trace with hash 1283902911, now seen corresponding path program 1 times [2023-04-02 05:25:45,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:25:45,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614578183] [2023-04-02 05:25:45,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:25:45,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:25:45,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:46,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:25:46,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:46,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:25:46,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:46,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-04-02 05:25:46,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:46,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-04-02 05:25:46,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:46,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-04-02 05:25:46,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:46,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-04-02 05:25:46,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:46,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-04-02 05:25:46,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:25:46,268 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 05:25:46,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:25:46,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614578183] [2023-04-02 05:25:46,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614578183] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:25:46,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:25:46,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-04-02 05:25:46,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307847279] [2023-04-02 05:25:46,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:25:46,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 05:25:46,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:25:46,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 05:25:46,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-04-02 05:25:46,269 INFO L87 Difference]: Start difference. First operand 73996 states and 112603 transitions. Second operand has 10 states, 10 states have (on average 8.8) internal successors, (88), 6 states have internal predecessors, (88), 3 states have call successors, (9), 6 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-04-02 05:25:53,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:25:53,808 INFO L93 Difference]: Finished difference Result 152824 states and 234498 transitions. [2023-04-02 05:25:53,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-04-02 05:25:53,809 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.8) internal successors, (88), 6 states have internal predecessors, (88), 3 states have call successors, (9), 6 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 104 [2023-04-02 05:25:53,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:25:54,215 INFO L225 Difference]: With dead ends: 152824 [2023-04-02 05:25:54,215 INFO L226 Difference]: Without dead ends: 88118 [2023-04-02 05:25:54,328 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=119, Invalid=261, Unknown=0, NotChecked=0, Total=380 [2023-04-02 05:25:54,329 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 970 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 800 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 978 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 849 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 800 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-04-02 05:25:54,329 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [978 Valid, 61 Invalid, 849 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 800 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-04-02 05:25:54,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88118 states. [2023-04-02 05:26:00,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88118 to 78352. [2023-04-02 05:26:00,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78352 states, 65275 states have (on average 1.518958253542704) internal successors, (99150), 67620 states have internal predecessors, (99150), 5366 states have call successors, (5366), 5366 states have call predecessors, (5366), 7710 states have return successors, (14557), 5365 states have call predecessors, (14557), 5365 states have call successors, (14557) [2023-04-02 05:26:00,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78352 states to 78352 states and 119073 transitions. [2023-04-02 05:26:00,588 INFO L78 Accepts]: Start accepts. Automaton has 78352 states and 119073 transitions. Word has length 104 [2023-04-02 05:26:00,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:26:00,589 INFO L495 AbstractCegarLoop]: Abstraction has 78352 states and 119073 transitions. [2023-04-02 05:26:00,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.8) internal successors, (88), 6 states have internal predecessors, (88), 3 states have call successors, (9), 6 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-04-02 05:26:00,589 INFO L276 IsEmpty]: Start isEmpty. Operand 78352 states and 119073 transitions. [2023-04-02 05:26:00,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-04-02 05:26:00,593 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:26:00,593 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] [2023-04-02 05:26:00,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-04-02 05:26:00,593 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:26:00,593 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:26:00,594 INFO L85 PathProgramCache]: Analyzing trace with hash 2123687039, now seen corresponding path program 1 times [2023-04-02 05:26:00,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:26:00,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120919303] [2023-04-02 05:26:00,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:26:00,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:26:00,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:26:00,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:26:00,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:26:00,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:26:00,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:26:00,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-04-02 05:26:00,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:26:00,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-04-02 05:26:00,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:26:00,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-04-02 05:26:00,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:26:01,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-04-02 05:26:01,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:26:01,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-04-02 05:26:01,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:26:01,082 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 05:26:01,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:26:01,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120919303] [2023-04-02 05:26:01,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120919303] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:26:01,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:26:01,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-04-02 05:26:01,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292191512] [2023-04-02 05:26:01,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:26:01,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 05:26:01,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:26:01,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 05:26:01,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-04-02 05:26:01,084 INFO L87 Difference]: Start difference. First operand 78352 states and 119073 transitions. Second operand has 10 states, 10 states have (on average 8.8) internal successors, (88), 6 states have internal predecessors, (88), 3 states have call successors, (9), 6 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-04-02 05:26:07,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:26:07,619 INFO L93 Difference]: Finished difference Result 150700 states and 229537 transitions. [2023-04-02 05:26:07,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-04-02 05:26:07,620 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.8) internal successors, (88), 6 states have internal predecessors, (88), 3 states have call successors, (9), 6 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 104 [2023-04-02 05:26:07,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:26:08,293 INFO L225 Difference]: With dead ends: 150700 [2023-04-02 05:26:08,294 INFO L226 Difference]: Without dead ends: 92828 [2023-04-02 05:26:08,361 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=119, Invalid=261, Unknown=0, NotChecked=0, Total=380 [2023-04-02 05:26:08,362 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 1305 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 755 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1312 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 835 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 755 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-04-02 05:26:08,362 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1312 Valid, 60 Invalid, 835 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 755 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-04-02 05:26:08,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92828 states. [2023-04-02 05:26:14,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92828 to 78352. [2023-04-02 05:26:14,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78352 states, 65275 states have (on average 1.518958253542704) internal successors, (99150), 67620 states have internal predecessors, (99150), 5366 states have call successors, (5366), 5366 states have call predecessors, (5366), 7710 states have return successors, (14237), 5365 states have call predecessors, (14237), 5365 states have call successors, (14237) [2023-04-02 05:26:14,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78352 states to 78352 states and 118753 transitions. [2023-04-02 05:26:14,398 INFO L78 Accepts]: Start accepts. Automaton has 78352 states and 118753 transitions. Word has length 104 [2023-04-02 05:26:14,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:26:14,398 INFO L495 AbstractCegarLoop]: Abstraction has 78352 states and 118753 transitions. [2023-04-02 05:26:14,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.8) internal successors, (88), 6 states have internal predecessors, (88), 3 states have call successors, (9), 6 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-04-02 05:26:14,399 INFO L276 IsEmpty]: Start isEmpty. Operand 78352 states and 118753 transitions. [2023-04-02 05:26:14,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-04-02 05:26:14,400 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:26:14,400 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] [2023-04-02 05:26:14,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-04-02 05:26:14,401 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:26:14,401 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:26:14,401 INFO L85 PathProgramCache]: Analyzing trace with hash -596490222, now seen corresponding path program 1 times [2023-04-02 05:26:14,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:26:14,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180400105] [2023-04-02 05:26:14,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:26:14,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:26:14,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:26:14,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:26:14,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:26:14,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:26:14,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:26:14,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-04-02 05:26:14,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:26:14,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-04-02 05:26:14,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:26:14,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-04-02 05:26:14,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:26:14,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 05:26:14,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:26:14,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-04-02 05:26:14,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:26:14,798 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 05:26:14,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:26:14,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180400105] [2023-04-02 05:26:14,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180400105] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:26:14,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:26:14,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-04-02 05:26:14,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249543832] [2023-04-02 05:26:14,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:26:14,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-02 05:26:14,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:26:14,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-02 05:26:14,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-04-02 05:26:14,800 INFO L87 Difference]: Start difference. First operand 78352 states and 118753 transitions. Second operand has 11 states, 11 states have (on average 8.090909090909092) internal successors, (89), 7 states have internal predecessors, (89), 4 states have call successors, (9), 6 states have call predecessors, (9), 4 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2023-04-02 05:26:24,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:26:24,913 INFO L93 Difference]: Finished difference Result 166679 states and 255039 transitions. [2023-04-02 05:26:24,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-04-02 05:26:24,914 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.090909090909092) internal successors, (89), 7 states have internal predecessors, (89), 4 states have call successors, (9), 6 states have call predecessors, (9), 4 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) Word has length 105 [2023-04-02 05:26:24,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:26:25,510 INFO L225 Difference]: With dead ends: 166679 [2023-04-02 05:26:25,511 INFO L226 Difference]: Without dead ends: 132627 [2023-04-02 05:26:25,595 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=194, Invalid=618, Unknown=0, NotChecked=0, Total=812 [2023-04-02 05:26:25,596 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 1644 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 2066 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1653 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 2113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 2066 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-04-02 05:26:25,596 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1653 Valid, 127 Invalid, 2113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 2066 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-04-02 05:26:25,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132627 states.