/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_lcr.4.1.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 05:16:11,799 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 05:16:11,801 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 05:16:11,838 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 05:16:11,838 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 05:16:11,841 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 05:16:11,844 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 05:16:11,846 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 05:16:11,847 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 05:16:11,852 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 05:16:11,853 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 05:16:11,854 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 05:16:11,854 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 05:16:11,857 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 05:16:11,857 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 05:16:11,858 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 05:16:11,859 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 05:16:11,859 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 05:16:11,861 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 05:16:11,866 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 05:16:11,867 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 05:16:11,867 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 05:16:11,868 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 05:16:11,869 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 05:16:11,872 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-04-02 05:16:11,875 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 05:16:11,875 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 05:16:11,876 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 05:16:11,876 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 05:16:11,877 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 05:16:11,877 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 05:16:11,877 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 05:16:11,877 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 05:16:11,877 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 05:16:11,878 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 05:16:11,878 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 05:16:11,879 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 05:16:11,902 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 05:16:11,902 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 05:16:11,903 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 05:16:11,903 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 05:16:11,904 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 05:16:11,904 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 05:16:11,904 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-02 05:16:11,904 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-02 05:16:11,904 INFO L138 SettingsManager]: * Use SBE=true [2023-04-02 05:16:11,905 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 05:16:11,905 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 05:16:11,905 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 05:16:11,905 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 05:16:11,905 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 05:16:11,905 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 05:16:11,906 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 05:16:11,906 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 05:16:11,906 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 05:16:11,906 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 05:16:11,906 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 05:16:11,906 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 05:16:11,906 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 05:16:11,906 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-02 05:16:11,906 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 05:16:11,906 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 05:16:11,907 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 05:16:11,907 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 05:16:11,907 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 05:16:11,907 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-02 05:16:11,907 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 05:16:11,907 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-02 05:16:11,907 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 05:16:11,907 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-02 05:16:11,908 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-02 05:16:11,908 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-02 05:16:11,908 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-02 05:16:12,104 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 05:16:12,119 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 05:16:12,123 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 05:16:12,124 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 05:16:12,124 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 05:16:12,125 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_lcr.4.1.ufo.UNBOUNDED.pals.c [2023-04-02 05:16:13,103 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 05:16:13,295 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 05:16:13,295 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_lcr.4.1.ufo.UNBOUNDED.pals.c [2023-04-02 05:16:13,307 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6fca19e3/a47ed9fa824c431f8a1817a73e2382e6/FLAGdf78c2dd0 [2023-04-02 05:16:13,321 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6fca19e3/a47ed9fa824c431f8a1817a73e2382e6 [2023-04-02 05:16:13,323 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 05:16:13,324 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 05:16:13,325 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 05:16:13,325 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 05:16:13,327 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 05:16:13,328 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 05:16:13" (1/1) ... [2023-04-02 05:16:13,328 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@767d7af1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:16:13, skipping insertion in model container [2023-04-02 05:16:13,328 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 05:16:13" (1/1) ... [2023-04-02 05:16:13,333 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 05:16:13,361 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 05:16:13,494 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_lcr.4.1.ufo.UNBOUNDED.pals.c[8342,8355] [2023-04-02 05:16:13,497 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 05:16:13,505 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 05:16:13,550 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_lcr.4.1.ufo.UNBOUNDED.pals.c[8342,8355] [2023-04-02 05:16:13,550 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 05:16:13,561 INFO L208 MainTranslator]: Completed translation [2023-04-02 05:16:13,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:16:13 WrapperNode [2023-04-02 05:16:13,562 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 05:16:13,562 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 05:16:13,562 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 05:16:13,562 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 05:16:13,575 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:16:13" (1/1) ... [2023-04-02 05:16:13,575 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:16:13" (1/1) ... [2023-04-02 05:16:13,581 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:16:13" (1/1) ... [2023-04-02 05:16:13,581 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:16:13" (1/1) ... [2023-04-02 05:16:13,587 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:16:13" (1/1) ... [2023-04-02 05:16:13,595 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:16:13" (1/1) ... [2023-04-02 05:16:13,610 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:16:13" (1/1) ... [2023-04-02 05:16:13,612 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:16:13" (1/1) ... [2023-04-02 05:16:13,614 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 05:16:13,614 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 05:16:13,615 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 05:16:13,615 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 05:16:13,615 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:16:13" (1/1) ... [2023-04-02 05:16:13,623 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 05:16:13,632 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 05:16:13,641 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 05:16:13,643 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 05:16:13,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 05:16:13,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 05:16:13,665 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 05:16:13,666 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-02 05:16:13,666 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2023-04-02 05:16:13,666 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2023-04-02 05:16:13,666 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2023-04-02 05:16:13,666 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2023-04-02 05:16:13,666 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2023-04-02 05:16:13,666 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2023-04-02 05:16:13,666 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 05:16:13,666 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2023-04-02 05:16:13,666 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 05:16:13,666 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 05:16:13,666 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 05:16:13,666 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 05:16:13,667 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-04-02 05:16:13,667 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2023-04-02 05:16:13,667 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2023-04-02 05:16:13,667 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-04-02 05:16:13,667 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-02 05:16:13,667 INFO L130 BoogieDeclarations]: Found specification of procedure read [2023-04-02 05:16:13,667 INFO L130 BoogieDeclarations]: Found specification of procedure write [2023-04-02 05:16:13,667 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2023-04-02 05:16:13,667 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2023-04-02 05:16:13,667 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2023-04-02 05:16:13,667 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2023-04-02 05:16:13,667 INFO L130 BoogieDeclarations]: Found specification of procedure init [2023-04-02 05:16:13,667 INFO L130 BoogieDeclarations]: Found specification of procedure check [2023-04-02 05:16:13,667 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 05:16:13,668 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 05:16:13,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 05:16:13,668 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 05:16:13,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 05:16:13,668 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 05:16:13,668 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 05:16:13,738 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 05:16:13,740 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 05:16:14,039 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 05:16:14,044 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 05:16:14,045 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-04-02 05:16:14,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 05:16:14 BoogieIcfgContainer [2023-04-02 05:16:14,046 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 05:16:14,048 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 05:16:14,048 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 05:16:14,050 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 05:16:14,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 05:16:13" (1/3) ... [2023-04-02 05:16:14,050 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58d9387 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 05:16:14, skipping insertion in model container [2023-04-02 05:16:14,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:16:13" (2/3) ... [2023-04-02 05:16:14,051 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58d9387 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 05:16:14, skipping insertion in model container [2023-04-02 05:16:14,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 05:16:14" (3/3) ... [2023-04-02 05:16:14,052 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.4.1.ufo.UNBOUNDED.pals.c [2023-04-02 05:16:14,068 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 05:16:14,068 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 05:16:14,118 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 05:16:14,124 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;@5a5aee94, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-02 05:16:14,124 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 05:16:14,127 INFO L276 IsEmpty]: Start isEmpty. Operand has 104 states, 82 states have (on average 1.6097560975609757) internal successors, (132), 84 states have internal predecessors, (132), 10 states have call successors, (10), 10 states have call predecessors, (10), 10 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-04-02 05:16:14,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-04-02 05:16:14,138 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:16:14,139 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] [2023-04-02 05:16:14,140 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:16:14,144 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:16:14,145 INFO L85 PathProgramCache]: Analyzing trace with hash 1240866519, now seen corresponding path program 1 times [2023-04-02 05:16:14,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:16:14,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020836229] [2023-04-02 05:16:14,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:16:14,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:16:14,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:14,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:16:14,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:14,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:16:14,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:14,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 05:16:14,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:14,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:16:14,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:14,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 05:16:14,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:14,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 05:16:14,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:14,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:16:14,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:14,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-04-02 05:16:14,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:14,645 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 05:16:14,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:16:14,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020836229] [2023-04-02 05:16:14,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020836229] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:16:14,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:16:14,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-02 05:16:14,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972665212] [2023-04-02 05:16:14,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:16:14,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-02 05:16:14,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:16:14,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-02 05:16:14,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-04-02 05:16:14,691 INFO L87 Difference]: Start difference. First operand has 104 states, 82 states have (on average 1.6097560975609757) internal successors, (132), 84 states have internal predecessors, (132), 10 states have call successors, (10), 10 states have call predecessors, (10), 10 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (10), 7 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-02 05:16:15,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:16:15,119 INFO L93 Difference]: Finished difference Result 166 states and 240 transitions. [2023-04-02 05:16:15,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 05:16:15,121 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (10), 7 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 52 [2023-04-02 05:16:15,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:16:15,127 INFO L225 Difference]: With dead ends: 166 [2023-04-02 05:16:15,128 INFO L226 Difference]: Without dead ends: 100 [2023-04-02 05:16:15,130 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2023-04-02 05:16:15,134 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 503 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 503 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-04-02 05:16:15,135 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [503 Valid, 46 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-02 05:16:15,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2023-04-02 05:16:15,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 99. [2023-04-02 05:16:15,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 79 states have (on average 1.5822784810126582) internal successors, (125), 80 states have internal predecessors, (125), 10 states have call successors, (10), 10 states have call predecessors, (10), 9 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-04-02 05:16:15,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 144 transitions. [2023-04-02 05:16:15,201 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 144 transitions. Word has length 52 [2023-04-02 05:16:15,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:16:15,202 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 144 transitions. [2023-04-02 05:16:15,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (10), 7 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-02 05:16:15,203 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 144 transitions. [2023-04-02 05:16:15,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-04-02 05:16:15,206 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:16:15,206 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] [2023-04-02 05:16:15,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-02 05:16:15,206 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:16:15,207 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:16:15,207 INFO L85 PathProgramCache]: Analyzing trace with hash 1900398041, now seen corresponding path program 1 times [2023-04-02 05:16:15,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:16:15,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656136159] [2023-04-02 05:16:15,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:16:15,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:16:15,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:15,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:16:15,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:15,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:16:15,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:15,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 05:16:15,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:15,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:16:15,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:15,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 05:16:15,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:15,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 05:16:15,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:15,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:16:15,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:15,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-04-02 05:16:15,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:15,597 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 05:16:15,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:16:15,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656136159] [2023-04-02 05:16:15,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656136159] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:16:15,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:16:15,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-04-02 05:16:15,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114629442] [2023-04-02 05:16:15,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:16:15,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 05:16:15,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:16:15,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 05:16:15,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-04-02 05:16:15,601 INFO L87 Difference]: Start difference. First operand 99 states and 144 transitions. Second operand has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 7 states have internal predecessors, (34), 3 states have call successors, (10), 7 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-04-02 05:16:16,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:16:16,484 INFO L93 Difference]: Finished difference Result 164 states and 232 transitions. [2023-04-02 05:16:16,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-04-02 05:16:16,485 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 7 states have internal predecessors, (34), 3 states have call successors, (10), 7 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 52 [2023-04-02 05:16:16,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:16:16,486 INFO L225 Difference]: With dead ends: 164 [2023-04-02 05:16:16,486 INFO L226 Difference]: Without dead ends: 100 [2023-04-02 05:16:16,487 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2023-04-02 05:16:16,487 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 286 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 987 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 292 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 1030 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 987 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-04-02 05:16:16,488 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [292 Valid, 132 Invalid, 1030 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 987 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-04-02 05:16:16,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2023-04-02 05:16:16,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 99. [2023-04-02 05:16:16,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 79 states have (on average 1.2911392405063291) internal successors, (102), 80 states have internal predecessors, (102), 10 states have call successors, (10), 10 states have call predecessors, (10), 9 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-04-02 05:16:16,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 121 transitions. [2023-04-02 05:16:16,503 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 121 transitions. Word has length 52 [2023-04-02 05:16:16,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:16:16,503 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 121 transitions. [2023-04-02 05:16:16,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 7 states have internal predecessors, (34), 3 states have call successors, (10), 7 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-04-02 05:16:16,503 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 121 transitions. [2023-04-02 05:16:16,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-04-02 05:16:16,505 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:16:16,505 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] [2023-04-02 05:16:16,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-02 05:16:16,505 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:16:16,506 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:16:16,506 INFO L85 PathProgramCache]: Analyzing trace with hash -200383074, now seen corresponding path program 1 times [2023-04-02 05:16:16,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:16:16,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285364129] [2023-04-02 05:16:16,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:16:16,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:16:16,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:16,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:16:16,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:16,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:16:16,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:16,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:16:16,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:16,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 05:16:16,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:16,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-04-02 05:16:16,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:16,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-04-02 05:16:16,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:16,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-04-02 05:16:16,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:16,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-04-02 05:16:16,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:16,958 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 05:16:16,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:16:16,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285364129] [2023-04-02 05:16:16,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285364129] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:16:16,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:16:16,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-04-02 05:16:16,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212924058] [2023-04-02 05:16:16,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:16:16,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-04-02 05:16:16,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:16:16,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-04-02 05:16:16,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2023-04-02 05:16:16,961 INFO L87 Difference]: Start difference. First operand 99 states and 121 transitions. Second operand has 16 states, 16 states have (on average 3.5) internal successors, (56), 11 states have internal predecessors, (56), 3 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-02 05:16:21,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:16:21,130 INFO L93 Difference]: Finished difference Result 824 states and 1151 transitions. [2023-04-02 05:16:21,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2023-04-02 05:16:21,132 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.5) internal successors, (56), 11 states have internal predecessors, (56), 3 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 74 [2023-04-02 05:16:21,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:16:21,138 INFO L225 Difference]: With dead ends: 824 [2023-04-02 05:16:21,138 INFO L226 Difference]: Without dead ends: 766 [2023-04-02 05:16:21,141 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2970 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=1562, Invalid=7180, Unknown=0, NotChecked=0, Total=8742 [2023-04-02 05:16:21,142 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 2793 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 1680 mSolverCounterSat, 371 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2804 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 2051 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 371 IncrementalHoareTripleChecker+Valid, 1680 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-04-02 05:16:21,142 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2804 Valid, 152 Invalid, 2051 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [371 Valid, 1680 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-04-02 05:16:21,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 766 states. [2023-04-02 05:16:21,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 766 to 395. [2023-04-02 05:16:21,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 395 states, 307 states have (on average 1.4039087947882736) internal successors, (431), 316 states have internal predecessors, (431), 40 states have call successors, (40), 40 states have call predecessors, (40), 47 states have return successors, (67), 39 states have call predecessors, (67), 39 states have call successors, (67) [2023-04-02 05:16:21,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 538 transitions. [2023-04-02 05:16:21,231 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 538 transitions. Word has length 74 [2023-04-02 05:16:21,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:16:21,232 INFO L495 AbstractCegarLoop]: Abstraction has 395 states and 538 transitions. [2023-04-02 05:16:21,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.5) internal successors, (56), 11 states have internal predecessors, (56), 3 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-02 05:16:21,232 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 538 transitions. [2023-04-02 05:16:21,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-04-02 05:16:21,238 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:16:21,239 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] [2023-04-02 05:16:21,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-02 05:16:21,239 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:16:21,239 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:16:21,239 INFO L85 PathProgramCache]: Analyzing trace with hash -1513421746, now seen corresponding path program 1 times [2023-04-02 05:16:21,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:16:21,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191270433] [2023-04-02 05:16:21,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:16:21,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:16:21,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:21,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:16:21,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:21,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:16:21,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:21,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:16:21,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:21,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 05:16:21,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:21,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-04-02 05:16:21,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:21,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-04-02 05:16:21,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:21,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-04-02 05:16:21,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:21,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-04-02 05:16:21,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:21,386 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 05:16:21,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:16:21,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191270433] [2023-04-02 05:16:21,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191270433] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:16:21,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:16:21,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-02 05:16:21,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772818017] [2023-04-02 05:16:21,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:16:21,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-02 05:16:21,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:16:21,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-02 05:16:21,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-04-02 05:16:21,388 INFO L87 Difference]: Start difference. First operand 395 states and 538 transitions. Second operand has 8 states, 8 states have (on average 7.25) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (10), 7 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) [2023-04-02 05:16:22,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:16:22,074 INFO L93 Difference]: Finished difference Result 1069 states and 1494 transitions. [2023-04-02 05:16:22,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-04-02 05:16:22,074 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (10), 7 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) Word has length 76 [2023-04-02 05:16:22,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:16:22,077 INFO L225 Difference]: With dead ends: 1069 [2023-04-02 05:16:22,077 INFO L226 Difference]: Without dead ends: 715 [2023-04-02 05:16:22,079 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=85, Invalid=187, Unknown=0, NotChecked=0, Total=272 [2023-04-02 05:16:22,080 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 291 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-04-02 05:16:22,080 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [295 Valid, 82 Invalid, 489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-02 05:16:22,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 715 states. [2023-04-02 05:16:22,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 715 to 695. [2023-04-02 05:16:22,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 695 states, 529 states have (on average 1.393194706994329) internal successors, (737), 544 states have internal predecessors, (737), 76 states have call successors, (76), 76 states have call predecessors, (76), 89 states have return successors, (141), 75 states have call predecessors, (141), 75 states have call successors, (141) [2023-04-02 05:16:22,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 695 states to 695 states and 954 transitions. [2023-04-02 05:16:22,148 INFO L78 Accepts]: Start accepts. Automaton has 695 states and 954 transitions. Word has length 76 [2023-04-02 05:16:22,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:16:22,149 INFO L495 AbstractCegarLoop]: Abstraction has 695 states and 954 transitions. [2023-04-02 05:16:22,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (10), 7 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) [2023-04-02 05:16:22,149 INFO L276 IsEmpty]: Start isEmpty. Operand 695 states and 954 transitions. [2023-04-02 05:16:22,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-04-02 05:16:22,150 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:16:22,150 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] [2023-04-02 05:16:22,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-02 05:16:22,150 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:16:22,150 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:16:22,150 INFO L85 PathProgramCache]: Analyzing trace with hash 1493843094, now seen corresponding path program 1 times [2023-04-02 05:16:22,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:16:22,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998428274] [2023-04-02 05:16:22,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:16:22,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:16:22,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:22,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:16:22,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:22,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:16:22,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:22,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:16:22,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:22,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 05:16:22,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:22,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-04-02 05:16:22,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:22,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-04-02 05:16:22,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:22,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-04-02 05:16:22,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:22,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-04-02 05:16:22,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:22,615 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 05:16:22,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:16:22,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998428274] [2023-04-02 05:16:22,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998428274] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:16:22,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:16:22,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-04-02 05:16:22,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023285814] [2023-04-02 05:16:22,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:16:22,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-04-02 05:16:22,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:16:22,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-04-02 05:16:22,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2023-04-02 05:16:22,619 INFO L87 Difference]: Start difference. First operand 695 states and 954 transitions. Second operand has 16 states, 16 states have (on average 3.625) internal successors, (58), 11 states have internal predecessors, (58), 3 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-02 05:16:27,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:16:27,019 INFO L93 Difference]: Finished difference Result 2328 states and 3269 transitions. [2023-04-02 05:16:27,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2023-04-02 05:16:27,020 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.625) internal successors, (58), 11 states have internal predecessors, (58), 3 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 76 [2023-04-02 05:16:27,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:16:27,029 INFO L225 Difference]: With dead ends: 2328 [2023-04-02 05:16:27,029 INFO L226 Difference]: Without dead ends: 1674 [2023-04-02 05:16:27,032 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2820 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=1485, Invalid=6705, Unknown=0, NotChecked=0, Total=8190 [2023-04-02 05:16:27,038 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 2562 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 1715 mSolverCounterSat, 339 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2573 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 2054 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 339 IncrementalHoareTripleChecker+Valid, 1715 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-04-02 05:16:27,038 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2573 Valid, 149 Invalid, 2054 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [339 Valid, 1715 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-04-02 05:16:27,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1674 states. [2023-04-02 05:16:27,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1674 to 1608. [2023-04-02 05:16:27,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1608 states, 1227 states have (on average 1.4180929095354524) internal successors, (1740), 1253 states have internal predecessors, (1740), 178 states have call successors, (178), 178 states have call predecessors, (178), 202 states have return successors, (346), 177 states have call predecessors, (346), 177 states have call successors, (346) [2023-04-02 05:16:27,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1608 states to 1608 states and 2264 transitions. [2023-04-02 05:16:27,237 INFO L78 Accepts]: Start accepts. Automaton has 1608 states and 2264 transitions. Word has length 76 [2023-04-02 05:16:27,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:16:27,238 INFO L495 AbstractCegarLoop]: Abstraction has 1608 states and 2264 transitions. [2023-04-02 05:16:27,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.625) internal successors, (58), 11 states have internal predecessors, (58), 3 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-02 05:16:27,238 INFO L276 IsEmpty]: Start isEmpty. Operand 1608 states and 2264 transitions. [2023-04-02 05:16:27,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-04-02 05:16:27,239 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:16:27,239 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] [2023-04-02 05:16:27,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-02 05:16:27,239 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:16:27,239 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:16:27,239 INFO L85 PathProgramCache]: Analyzing trace with hash -152256352, now seen corresponding path program 1 times [2023-04-02 05:16:27,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:16:27,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803887704] [2023-04-02 05:16:27,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:16:27,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:16:27,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:27,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:16:27,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:27,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:16:27,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:27,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:16:27,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:27,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 05:16:27,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:27,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-04-02 05:16:27,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:27,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-04-02 05:16:27,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:27,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-04-02 05:16:27,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:27,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-04-02 05:16:27,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:27,506 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 05:16:27,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:16:27,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803887704] [2023-04-02 05:16:27,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803887704] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:16:27,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:16:27,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-04-02 05:16:27,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69064861] [2023-04-02 05:16:27,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:16:27,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 05:16:27,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:16:27,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 05:16:27,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-04-02 05:16:27,507 INFO L87 Difference]: Start difference. First operand 1608 states and 2264 transitions. Second operand has 10 states, 10 states have (on average 5.9) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (10), 7 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-02 05:16:28,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:16:28,614 INFO L93 Difference]: Finished difference Result 3752 states and 5318 transitions. [2023-04-02 05:16:28,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-04-02 05:16:28,614 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.9) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (10), 7 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 77 [2023-04-02 05:16:28,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:16:28,622 INFO L225 Difference]: With dead ends: 3752 [2023-04-02 05:16:28,622 INFO L226 Difference]: Without dead ends: 2185 [2023-04-02 05:16:28,624 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=160, Invalid=440, Unknown=0, NotChecked=0, Total=600 [2023-04-02 05:16:28,626 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 550 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 628 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 556 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-04-02 05:16:28,628 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [556 Valid, 81 Invalid, 664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 628 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-04-02 05:16:28,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2185 states. [2023-04-02 05:16:28,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2185 to 2133. [2023-04-02 05:16:28,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2133 states, 1616 states have (on average 1.4071782178217822) internal successors, (2274), 1660 states have internal predecessors, (2274), 237 states have call successors, (237), 237 states have call predecessors, (237), 279 states have return successors, (472), 236 states have call predecessors, (472), 236 states have call successors, (472) [2023-04-02 05:16:28,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2133 states to 2133 states and 2983 transitions. [2023-04-02 05:16:28,831 INFO L78 Accepts]: Start accepts. Automaton has 2133 states and 2983 transitions. Word has length 77 [2023-04-02 05:16:28,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:16:28,831 INFO L495 AbstractCegarLoop]: Abstraction has 2133 states and 2983 transitions. [2023-04-02 05:16:28,831 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.9) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (10), 7 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-02 05:16:28,831 INFO L276 IsEmpty]: Start isEmpty. Operand 2133 states and 2983 transitions. [2023-04-02 05:16:28,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-04-02 05:16:28,835 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:16:28,836 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] [2023-04-02 05:16:28,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-02 05:16:28,836 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:16:28,836 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:16:28,836 INFO L85 PathProgramCache]: Analyzing trace with hash 1495168609, now seen corresponding path program 1 times [2023-04-02 05:16:28,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:16:28,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596228585] [2023-04-02 05:16:28,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:16:28,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:16:28,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:29,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:16:29,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:29,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:16:29,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:29,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:16:29,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:29,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 05:16:29,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:29,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-04-02 05:16:29,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:29,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-04-02 05:16:29,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:29,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-04-02 05:16:29,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:29,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-04-02 05:16:29,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:29,211 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 05:16:29,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:16:29,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596228585] [2023-04-02 05:16:29,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596228585] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:16:29,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:16:29,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2023-04-02 05:16:29,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428855831] [2023-04-02 05:16:29,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:16:29,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-04-02 05:16:29,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:16:29,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-04-02 05:16:29,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=237, Unknown=0, NotChecked=0, Total=272 [2023-04-02 05:16:29,214 INFO L87 Difference]: Start difference. First operand 2133 states and 2983 transitions. Second operand has 17 states, 15 states have (on average 3.933333333333333) internal successors, (59), 9 states have internal predecessors, (59), 3 states have call successors, (10), 7 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-02 05:16:30,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:16:30,423 INFO L93 Difference]: Finished difference Result 2340 states and 3400 transitions. [2023-04-02 05:16:30,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-04-02 05:16:30,424 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 3.933333333333333) internal successors, (59), 9 states have internal predecessors, (59), 3 states have call successors, (10), 7 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 77 [2023-04-02 05:16:30,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:16:30,432 INFO L225 Difference]: With dead ends: 2340 [2023-04-02 05:16:30,432 INFO L226 Difference]: Without dead ends: 2338 [2023-04-02 05:16:30,433 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=141, Invalid=615, Unknown=0, NotChecked=0, Total=756 [2023-04-02 05:16:30,435 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 427 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 1353 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 434 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 1400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 1353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-04-02 05:16:30,435 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [434 Valid, 272 Invalid, 1400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 1353 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-04-02 05:16:30,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2338 states. [2023-04-02 05:16:30,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2338 to 2169. [2023-04-02 05:16:30,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2169 states, 1640 states have (on average 1.3969512195121951) internal successors, (2291), 1688 states have internal predecessors, (2291), 241 states have call successors, (241), 241 states have call predecessors, (241), 287 states have return successors, (484), 240 states have call predecessors, (484), 240 states have call successors, (484) [2023-04-02 05:16:30,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2169 states to 2169 states and 3016 transitions. [2023-04-02 05:16:30,653 INFO L78 Accepts]: Start accepts. Automaton has 2169 states and 3016 transitions. Word has length 77 [2023-04-02 05:16:30,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:16:30,654 INFO L495 AbstractCegarLoop]: Abstraction has 2169 states and 3016 transitions. [2023-04-02 05:16:30,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 3.933333333333333) internal successors, (59), 9 states have internal predecessors, (59), 3 states have call successors, (10), 7 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-02 05:16:30,655 INFO L276 IsEmpty]: Start isEmpty. Operand 2169 states and 3016 transitions. [2023-04-02 05:16:30,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-04-02 05:16:30,656 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:16:30,656 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] [2023-04-02 05:16:30,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-02 05:16:30,656 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:16:30,656 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:16:30,656 INFO L85 PathProgramCache]: Analyzing trace with hash 383074582, now seen corresponding path program 1 times [2023-04-02 05:16:30,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:16:30,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485634383] [2023-04-02 05:16:30,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:16:30,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:16:30,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:30,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:16:30,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:30,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:16:30,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:30,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:16:30,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:30,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 05:16:30,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:30,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-04-02 05:16:30,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:30,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-04-02 05:16:30,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:30,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-04-02 05:16:30,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:30,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-04-02 05:16:30,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:30,901 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 05:16:30,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:16:30,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485634383] [2023-04-02 05:16:30,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485634383] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:16:30,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:16:30,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-04-02 05:16:30,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722989625] [2023-04-02 05:16:30,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:16:30,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-04-02 05:16:30,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:16:30,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-04-02 05:16:30,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2023-04-02 05:16:30,912 INFO L87 Difference]: Start difference. First operand 2169 states and 3016 transitions. Second operand has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 9 states have internal predecessors, (60), 5 states have call successors, (10), 8 states have call predecessors, (10), 4 states have return successors, (8), 4 states have call predecessors, (8), 5 states have call successors, (8) [2023-04-02 05:16:32,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:16:32,453 INFO L93 Difference]: Finished difference Result 5366 states and 7454 transitions. [2023-04-02 05:16:32,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-04-02 05:16:32,453 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 9 states have internal predecessors, (60), 5 states have call successors, (10), 8 states have call predecessors, (10), 4 states have return successors, (8), 4 states have call predecessors, (8), 5 states have call successors, (8) Word has length 78 [2023-04-02 05:16:32,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:16:32,464 INFO L225 Difference]: With dead ends: 5366 [2023-04-02 05:16:32,465 INFO L226 Difference]: Without dead ends: 3238 [2023-04-02 05:16:32,469 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=244, Invalid=686, Unknown=0, NotChecked=0, Total=930 [2023-04-02 05:16:32,470 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 739 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 642 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 739 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 750 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 642 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-04-02 05:16:32,470 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [739 Valid, 61 Invalid, 750 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 642 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-02 05:16:32,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3238 states. [2023-04-02 05:16:32,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3238 to 2246. [2023-04-02 05:16:32,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2246 states, 1694 states have (on average 1.395513577331759) internal successors, (2364), 1751 states have internal predecessors, (2364), 248 states have call successors, (248), 248 states have call predecessors, (248), 303 states have return successors, (505), 246 states have call predecessors, (505), 247 states have call successors, (505) [2023-04-02 05:16:32,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2246 states to 2246 states and 3117 transitions. [2023-04-02 05:16:32,735 INFO L78 Accepts]: Start accepts. Automaton has 2246 states and 3117 transitions. Word has length 78 [2023-04-02 05:16:32,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:16:32,736 INFO L495 AbstractCegarLoop]: Abstraction has 2246 states and 3117 transitions. [2023-04-02 05:16:32,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 9 states have internal predecessors, (60), 5 states have call successors, (10), 8 states have call predecessors, (10), 4 states have return successors, (8), 4 states have call predecessors, (8), 5 states have call successors, (8) [2023-04-02 05:16:32,736 INFO L276 IsEmpty]: Start isEmpty. Operand 2246 states and 3117 transitions. [2023-04-02 05:16:32,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-04-02 05:16:32,737 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:16:32,737 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] [2023-04-02 05:16:32,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-04-02 05:16:32,737 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:16:32,737 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:16:32,737 INFO L85 PathProgramCache]: Analyzing trace with hash -400649578, now seen corresponding path program 1 times [2023-04-02 05:16:32,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:16:32,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552267068] [2023-04-02 05:16:32,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:16:32,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:16:32,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:32,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:16:32,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:32,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:16:32,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:32,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:16:32,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:32,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 05:16:32,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:32,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-04-02 05:16:32,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:32,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-04-02 05:16:32,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:32,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-04-02 05:16:32,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:32,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-04-02 05:16:32,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:32,958 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 05:16:32,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:16:32,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552267068] [2023-04-02 05:16:32,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552267068] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:16:32,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:16:32,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-04-02 05:16:32,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615539210] [2023-04-02 05:16:32,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:16:32,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-04-02 05:16:32,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:16:32,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-04-02 05:16:32,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2023-04-02 05:16:32,960 INFO L87 Difference]: Start difference. First operand 2246 states and 3117 transitions. Second operand has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 9 states have internal predecessors, (60), 5 states have call successors, (10), 8 states have call predecessors, (10), 4 states have return successors, (8), 4 states have call predecessors, (8), 5 states have call successors, (8) [2023-04-02 05:16:34,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:16:34,413 INFO L93 Difference]: Finished difference Result 4782 states and 6550 transitions. [2023-04-02 05:16:34,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-04-02 05:16:34,413 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 9 states have internal predecessors, (60), 5 states have call successors, (10), 8 states have call predecessors, (10), 4 states have return successors, (8), 4 states have call predecessors, (8), 5 states have call successors, (8) Word has length 78 [2023-04-02 05:16:34,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:16:34,422 INFO L225 Difference]: With dead ends: 4782 [2023-04-02 05:16:34,422 INFO L226 Difference]: Without dead ends: 2591 [2023-04-02 05:16:34,426 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=244, Invalid=686, Unknown=0, NotChecked=0, Total=930 [2023-04-02 05:16:34,427 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 849 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 617 mSolverCounterSat, 130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 849 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 747 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 617 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-04-02 05:16:34,427 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [849 Valid, 60 Invalid, 747 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [130 Valid, 617 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-02 05:16:34,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2591 states. [2023-04-02 05:16:34,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2591 to 2333. [2023-04-02 05:16:34,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2333 states, 1757 states have (on average 1.3932840068298236) internal successors, (2448), 1820 states have internal predecessors, (2448), 257 states have call successors, (257), 257 states have call predecessors, (257), 318 states have return successors, (523), 255 states have call predecessors, (523), 256 states have call successors, (523) [2023-04-02 05:16:34,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2333 states to 2333 states and 3228 transitions. [2023-04-02 05:16:34,668 INFO L78 Accepts]: Start accepts. Automaton has 2333 states and 3228 transitions. Word has length 78 [2023-04-02 05:16:34,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:16:34,668 INFO L495 AbstractCegarLoop]: Abstraction has 2333 states and 3228 transitions. [2023-04-02 05:16:34,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 9 states have internal predecessors, (60), 5 states have call successors, (10), 8 states have call predecessors, (10), 4 states have return successors, (8), 4 states have call predecessors, (8), 5 states have call successors, (8) [2023-04-02 05:16:34,669 INFO L276 IsEmpty]: Start isEmpty. Operand 2333 states and 3228 transitions. [2023-04-02 05:16:34,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-04-02 05:16:34,669 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:16:34,670 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] [2023-04-02 05:16:34,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-04-02 05:16:34,670 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:16:34,670 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:16:34,670 INFO L85 PathProgramCache]: Analyzing trace with hash 179087654, now seen corresponding path program 1 times [2023-04-02 05:16:34,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:16:34,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297204780] [2023-04-02 05:16:34,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:16:34,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:16:34,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:34,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:16:34,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:34,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:16:34,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:34,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:16:34,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:34,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 05:16:34,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:34,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-04-02 05:16:34,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:34,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-04-02 05:16:34,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:34,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-04-02 05:16:34,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:34,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-04-02 05:16:34,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:34,895 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 05:16:34,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:16:34,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297204780] [2023-04-02 05:16:34,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297204780] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:16:34,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:16:34,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-04-02 05:16:34,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623337283] [2023-04-02 05:16:34,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:16:34,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-04-02 05:16:34,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:16:34,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-04-02 05:16:34,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2023-04-02 05:16:34,897 INFO L87 Difference]: Start difference. First operand 2333 states and 3228 transitions. Second operand has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 9 states have internal predecessors, (60), 5 states have call successors, (10), 8 states have call predecessors, (10), 4 states have return successors, (8), 4 states have call predecessors, (8), 5 states have call successors, (8) [2023-04-02 05:16:36,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:16:36,345 INFO L93 Difference]: Finished difference Result 5227 states and 7178 transitions. [2023-04-02 05:16:36,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-04-02 05:16:36,346 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 9 states have internal predecessors, (60), 5 states have call successors, (10), 8 states have call predecessors, (10), 4 states have return successors, (8), 4 states have call predecessors, (8), 5 states have call successors, (8) Word has length 78 [2023-04-02 05:16:36,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:16:36,354 INFO L225 Difference]: With dead ends: 5227 [2023-04-02 05:16:36,354 INFO L226 Difference]: Without dead ends: 2997 [2023-04-02 05:16:36,358 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=244, Invalid=686, Unknown=0, NotChecked=0, Total=930 [2023-04-02 05:16:36,358 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 781 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 628 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 781 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 735 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-04-02 05:16:36,359 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [781 Valid, 57 Invalid, 735 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 628 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-02 05:16:36,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2997 states. [2023-04-02 05:16:36,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2997 to 2455. [2023-04-02 05:16:36,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2455 states, 1848 states have (on average 1.397186147186147) internal successors, (2582), 1922 states have internal predecessors, (2582), 267 states have call successors, (267), 267 states have call predecessors, (267), 339 states have return successors, (550), 265 states have call predecessors, (550), 266 states have call successors, (550) [2023-04-02 05:16:36,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2455 states to 2455 states and 3399 transitions. [2023-04-02 05:16:36,646 INFO L78 Accepts]: Start accepts. Automaton has 2455 states and 3399 transitions. Word has length 78 [2023-04-02 05:16:36,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:16:36,647 INFO L495 AbstractCegarLoop]: Abstraction has 2455 states and 3399 transitions. [2023-04-02 05:16:36,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 9 states have internal predecessors, (60), 5 states have call successors, (10), 8 states have call predecessors, (10), 4 states have return successors, (8), 4 states have call predecessors, (8), 5 states have call successors, (8) [2023-04-02 05:16:36,647 INFO L276 IsEmpty]: Start isEmpty. Operand 2455 states and 3399 transitions. [2023-04-02 05:16:36,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-04-02 05:16:36,648 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:16:36,648 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] [2023-04-02 05:16:36,648 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-04-02 05:16:36,648 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:16:36,648 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:16:36,648 INFO L85 PathProgramCache]: Analyzing trace with hash 1270697355, now seen corresponding path program 1 times [2023-04-02 05:16:36,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:16:36,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003266296] [2023-04-02 05:16:36,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:16:36,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:16:36,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:36,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:16:36,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:36,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:16:36,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:36,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:16:36,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:36,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 05:16:36,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:36,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-04-02 05:16:36,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:36,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-04-02 05:16:36,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:36,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-04-02 05:16:36,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:36,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-04-02 05:16:36,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:36,851 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 05:16:36,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:16:36,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003266296] [2023-04-02 05:16:36,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003266296] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:16:36,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:16:36,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-04-02 05:16:36,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742548869] [2023-04-02 05:16:36,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:16:36,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-04-02 05:16:36,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:16:36,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-04-02 05:16:36,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2023-04-02 05:16:36,853 INFO L87 Difference]: Start difference. First operand 2455 states and 3399 transitions. Second operand has 14 states, 14 states have (on average 4.428571428571429) internal successors, (62), 9 states have internal predecessors, (62), 5 states have call successors, (10), 8 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 5 states have call successors, (8) [2023-04-02 05:16:38,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:16:38,293 INFO L93 Difference]: Finished difference Result 4776 states and 6663 transitions. [2023-04-02 05:16:38,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-04-02 05:16:38,293 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.428571428571429) internal successors, (62), 9 states have internal predecessors, (62), 5 states have call successors, (10), 8 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 5 states have call successors, (8) Word has length 80 [2023-04-02 05:16:38,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:16:38,302 INFO L225 Difference]: With dead ends: 4776 [2023-04-02 05:16:38,303 INFO L226 Difference]: Without dead ends: 3002 [2023-04-02 05:16:38,306 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=244, Invalid=686, Unknown=0, NotChecked=0, Total=930 [2023-04-02 05:16:38,306 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 888 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 591 mSolverCounterSat, 135 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 888 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 726 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 135 IncrementalHoareTripleChecker+Valid, 591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-04-02 05:16:38,307 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [888 Valid, 56 Invalid, 726 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [135 Valid, 591 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-02 05:16:38,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3002 states. [2023-04-02 05:16:38,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3002 to 2521. [2023-04-02 05:16:38,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2521 states, 1905 states have (on average 1.405249343832021) internal successors, (2677), 1972 states have internal predecessors, (2677), 275 states have call successors, (275), 275 states have call predecessors, (275), 340 states have return successors, (557), 273 states have call predecessors, (557), 274 states have call successors, (557) [2023-04-02 05:16:38,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2521 states to 2521 states and 3509 transitions. [2023-04-02 05:16:38,578 INFO L78 Accepts]: Start accepts. Automaton has 2521 states and 3509 transitions. Word has length 80 [2023-04-02 05:16:38,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:16:38,578 INFO L495 AbstractCegarLoop]: Abstraction has 2521 states and 3509 transitions. [2023-04-02 05:16:38,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.428571428571429) internal successors, (62), 9 states have internal predecessors, (62), 5 states have call successors, (10), 8 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 5 states have call successors, (8) [2023-04-02 05:16:38,578 INFO L276 IsEmpty]: Start isEmpty. Operand 2521 states and 3509 transitions. [2023-04-02 05:16:38,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-04-02 05:16:38,579 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:16:38,579 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] [2023-04-02 05:16:38,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-04-02 05:16:38,579 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:16:38,580 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:16:38,580 INFO L85 PathProgramCache]: Analyzing trace with hash -2116119479, now seen corresponding path program 1 times [2023-04-02 05:16:38,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:16:38,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130726090] [2023-04-02 05:16:38,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:16:38,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:16:38,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:38,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:16:38,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:38,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:16:38,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:38,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:16:38,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:38,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 05:16:38,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:38,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-04-02 05:16:38,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:38,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-04-02 05:16:38,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:38,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-04-02 05:16:38,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:38,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-04-02 05:16:38,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:38,791 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 05:16:38,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:16:38,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130726090] [2023-04-02 05:16:38,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130726090] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:16:38,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:16:38,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-04-02 05:16:38,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444083408] [2023-04-02 05:16:38,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:16:38,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 05:16:38,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:16:38,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 05:16:38,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-04-02 05:16:38,792 INFO L87 Difference]: Start difference. First operand 2521 states and 3509 transitions. Second operand has 10 states, 10 states have (on average 6.3) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (10), 7 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-04-02 05:16:39,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:16:39,845 INFO L93 Difference]: Finished difference Result 5049 states and 7062 transitions. [2023-04-02 05:16:39,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-04-02 05:16:39,845 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.3) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (10), 7 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 81 [2023-04-02 05:16:39,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:16:39,853 INFO L225 Difference]: With dead ends: 5049 [2023-04-02 05:16:39,854 INFO L226 Difference]: Without dead ends: 3175 [2023-04-02 05:16:39,856 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=120, Invalid=300, Unknown=0, NotChecked=0, Total=420 [2023-04-02 05:16:39,857 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 472 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 571 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 477 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 613 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-04-02 05:16:39,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [477 Valid, 80 Invalid, 613 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 571 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-02 05:16:39,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3175 states. [2023-04-02 05:16:40,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3175 to 3119. [2023-04-02 05:16:40,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3119 states, 2350 states have (on average 1.3812765957446809) internal successors, (3246), 2406 states have internal predecessors, (3246), 357 states have call successors, (357), 357 states have call predecessors, (357), 411 states have return successors, (684), 355 states have call predecessors, (684), 356 states have call successors, (684) [2023-04-02 05:16:40,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3119 states to 3119 states and 4287 transitions. [2023-04-02 05:16:40,243 INFO L78 Accepts]: Start accepts. Automaton has 3119 states and 4287 transitions. Word has length 81 [2023-04-02 05:16:40,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:16:40,243 INFO L495 AbstractCegarLoop]: Abstraction has 3119 states and 4287 transitions. [2023-04-02 05:16:40,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.3) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (10), 7 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-04-02 05:16:40,243 INFO L276 IsEmpty]: Start isEmpty. Operand 3119 states and 4287 transitions. [2023-04-02 05:16:40,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-04-02 05:16:40,244 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:16:40,245 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:16:40,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-04-02 05:16:40,245 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:16:40,245 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:16:40,245 INFO L85 PathProgramCache]: Analyzing trace with hash 126276292, now seen corresponding path program 1 times [2023-04-02 05:16:40,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:16:40,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284735157] [2023-04-02 05:16:40,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:16:40,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:16:40,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:40,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:16:40,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:40,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:16:40,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:40,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:16:40,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:40,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 05:16:40,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:40,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-04-02 05:16:40,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:40,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-04-02 05:16:40,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:40,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-04-02 05:16:40,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:40,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-04-02 05:16:40,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:40,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-04-02 05:16:40,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:40,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 05:16:40,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:40,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-04-02 05:16:40,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:40,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-04-02 05:16:40,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:40,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-04-02 05:16:40,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:40,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-04-02 05:16:40,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:40,608 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 17 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-04-02 05:16:40,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:16:40,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284735157] [2023-04-02 05:16:40,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284735157] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 05:16:40,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1775568053] [2023-04-02 05:16:40,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:16:40,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:16:40,609 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 05:16:40,611 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 05:16:40,615 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-04-02 05:16:40,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:40,748 INFO L262 TraceCheckSpWp]: Trace formula consists of 772 conjuncts, 17 conjunts are in the unsatisfiable core [2023-04-02 05:16:40,760 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 05:16:41,293 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-04-02 05:16:41,293 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 05:16:41,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1775568053] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:16:41,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 05:16:41,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [17] total 26 [2023-04-02 05:16:41,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76558821] [2023-04-02 05:16:41,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:16:41,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-02 05:16:41,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:16:41,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-02 05:16:41,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=569, Unknown=0, NotChecked=0, Total=650 [2023-04-02 05:16:41,294 INFO L87 Difference]: Start difference. First operand 3119 states and 4287 transitions. Second operand has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 11 states have internal predecessors, (80), 4 states have call successors, (14), 9 states have call predecessors, (14), 9 states have return successors, (13), 4 states have call predecessors, (13), 3 states have call successors, (13) [2023-04-02 05:16:42,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:16:42,388 INFO L93 Difference]: Finished difference Result 6159 states and 8519 transitions. [2023-04-02 05:16:42,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-04-02 05:16:42,388 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 11 states have internal predecessors, (80), 4 states have call successors, (14), 9 states have call predecessors, (14), 9 states have return successors, (13), 4 states have call predecessors, (13), 3 states have call successors, (13) Word has length 115 [2023-04-02 05:16:42,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:16:42,401 INFO L225 Difference]: With dead ends: 6159 [2023-04-02 05:16:42,401 INFO L226 Difference]: Without dead ends: 4629 [2023-04-02 05:16:42,405 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=103, Invalid=653, Unknown=0, NotChecked=0, Total=756 [2023-04-02 05:16:42,405 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 691 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 890 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 697 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 940 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 890 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-04-02 05:16:42,406 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [697 Valid, 296 Invalid, 940 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 890 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-04-02 05:16:42,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4629 states. [2023-04-02 05:16:42,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4629 to 4621. [2023-04-02 05:16:42,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4621 states, 3485 states have (on average 1.3847919655667145) internal successors, (4826), 3562 states have internal predecessors, (4826), 530 states have call successors, (530), 530 states have call predecessors, (530), 605 states have return successors, (1023), 528 states have call predecessors, (1023), 529 states have call successors, (1023) [2023-04-02 05:16:42,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4621 states to 4621 states and 6379 transitions. [2023-04-02 05:16:42,947 INFO L78 Accepts]: Start accepts. Automaton has 4621 states and 6379 transitions. Word has length 115 [2023-04-02 05:16:42,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:16:42,947 INFO L495 AbstractCegarLoop]: Abstraction has 4621 states and 6379 transitions. [2023-04-02 05:16:42,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 11 states have internal predecessors, (80), 4 states have call successors, (14), 9 states have call predecessors, (14), 9 states have return successors, (13), 4 states have call predecessors, (13), 3 states have call successors, (13) [2023-04-02 05:16:42,948 INFO L276 IsEmpty]: Start isEmpty. Operand 4621 states and 6379 transitions. [2023-04-02 05:16:42,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-04-02 05:16:42,949 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:16:42,949 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:16:42,958 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-04-02 05:16:43,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-04-02 05:16:43,155 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:16:43,155 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:16:43,155 INFO L85 PathProgramCache]: Analyzing trace with hash -657447868, now seen corresponding path program 1 times [2023-04-02 05:16:43,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:16:43,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676613460] [2023-04-02 05:16:43,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:16:43,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:16:43,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:43,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:16:43,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:43,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:16:43,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:43,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:16:43,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:43,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 05:16:43,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:43,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-04-02 05:16:43,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:43,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-04-02 05:16:43,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:43,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-04-02 05:16:43,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:43,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-04-02 05:16:43,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:43,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-04-02 05:16:43,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:43,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 05:16:43,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:43,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-04-02 05:16:43,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:43,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 05:16:43,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:43,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-04-02 05:16:43,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:43,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-04-02 05:16:43,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:43,569 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-04-02 05:16:43,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:16:43,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676613460] [2023-04-02 05:16:43,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676613460] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:16:43,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:16:43,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-04-02 05:16:43,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010624322] [2023-04-02 05:16:43,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:16:43,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-04-02 05:16:43,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:16:43,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-04-02 05:16:43,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2023-04-02 05:16:43,572 INFO L87 Difference]: Start difference. First operand 4621 states and 6379 transitions. Second operand has 16 states, 16 states have (on average 4.5625) internal successors, (73), 11 states have internal predecessors, (73), 4 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) [2023-04-02 05:16:49,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:16:49,217 INFO L93 Difference]: Finished difference Result 10965 states and 15283 transitions. [2023-04-02 05:16:49,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2023-04-02 05:16:49,218 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.5625) internal successors, (73), 11 states have internal predecessors, (73), 4 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) Word has length 115 [2023-04-02 05:16:49,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:16:49,236 INFO L225 Difference]: With dead ends: 10965 [2023-04-02 05:16:49,236 INFO L226 Difference]: Without dead ends: 7298 [2023-04-02 05:16:49,245 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4761 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=1965, Invalid=10917, Unknown=0, NotChecked=0, Total=12882 [2023-04-02 05:16:49,246 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 2092 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 2599 mSolverCounterSat, 295 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2106 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 2894 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 295 IncrementalHoareTripleChecker+Valid, 2599 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-04-02 05:16:49,246 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2106 Valid, 246 Invalid, 2894 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [295 Valid, 2599 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-04-02 05:16:49,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7298 states. [2023-04-02 05:16:50,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7298 to 7097. [2023-04-02 05:16:50,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7097 states, 5356 states have (on average 1.384988797610157) internal successors, (7418), 5458 states have internal predecessors, (7418), 820 states have call successors, (820), 820 states have call predecessors, (820), 920 states have return successors, (1595), 818 states have call predecessors, (1595), 819 states have call successors, (1595) [2023-04-02 05:16:50,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7097 states to 7097 states and 9833 transitions. [2023-04-02 05:16:50,086 INFO L78 Accepts]: Start accepts. Automaton has 7097 states and 9833 transitions. Word has length 115 [2023-04-02 05:16:50,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:16:50,087 INFO L495 AbstractCegarLoop]: Abstraction has 7097 states and 9833 transitions. [2023-04-02 05:16:50,087 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.5625) internal successors, (73), 11 states have internal predecessors, (73), 4 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) [2023-04-02 05:16:50,087 INFO L276 IsEmpty]: Start isEmpty. Operand 7097 states and 9833 transitions. [2023-04-02 05:16:50,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-04-02 05:16:50,089 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:16:50,089 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:16:50,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-04-02 05:16:50,089 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:16:50,089 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:16:50,089 INFO L85 PathProgramCache]: Analyzing trace with hash -77710636, now seen corresponding path program 1 times [2023-04-02 05:16:50,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:16:50,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529176611] [2023-04-02 05:16:50,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:16:50,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:16:50,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:50,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:16:50,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:50,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:16:50,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:50,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:16:50,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:50,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 05:16:50,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:50,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-04-02 05:16:50,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:50,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-04-02 05:16:50,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:50,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-04-02 05:16:50,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:50,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-04-02 05:16:50,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:50,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-04-02 05:16:50,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:50,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 05:16:50,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:50,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-04-02 05:16:50,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:50,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 05:16:50,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:50,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-04-02 05:16:50,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:50,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-04-02 05:16:50,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:50,435 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 16 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-04-02 05:16:50,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:16:50,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529176611] [2023-04-02 05:16:50,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529176611] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 05:16:50,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [273360130] [2023-04-02 05:16:50,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:16:50,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:16:50,436 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 05:16:50,437 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 05:16:50,440 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-04-02 05:16:50,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:50,555 INFO L262 TraceCheckSpWp]: Trace formula consists of 772 conjuncts, 17 conjunts are in the unsatisfiable core [2023-04-02 05:16:50,559 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 05:16:51,015 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-04-02 05:16:51,015 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 05:16:51,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [273360130] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:16:51,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 05:16:51,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [17] total 25 [2023-04-02 05:16:51,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101010798] [2023-04-02 05:16:51,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:16:51,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 05:16:51,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:16:51,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 05:16:51,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=523, Unknown=0, NotChecked=0, Total=600 [2023-04-02 05:16:51,016 INFO L87 Difference]: Start difference. First operand 7097 states and 9833 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 4 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (12), 4 states have call predecessors, (12), 3 states have call successors, (12) [2023-04-02 05:16:52,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:16:52,122 INFO L93 Difference]: Finished difference Result 11895 states and 16510 transitions. [2023-04-02 05:16:52,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-04-02 05:16:52,123 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 4 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (12), 4 states have call predecessors, (12), 3 states have call successors, (12) Word has length 115 [2023-04-02 05:16:52,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:16:52,140 INFO L225 Difference]: With dead ends: 11895 [2023-04-02 05:16:52,140 INFO L226 Difference]: Without dead ends: 6913 [2023-04-02 05:16:52,149 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=88, Invalid=562, Unknown=0, NotChecked=0, Total=650 [2023-04-02 05:16:52,150 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 670 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 607 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 677 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 665 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 607 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-04-02 05:16:52,150 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [677 Valid, 264 Invalid, 665 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 607 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-02 05:16:52,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6913 states. [2023-04-02 05:16:52,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6913 to 6895. [2023-04-02 05:16:52,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6895 states, 5205 states have (on average 1.3825168107588857) internal successors, (7196), 5306 states have internal predecessors, (7196), 795 states have call successors, (795), 795 states have call predecessors, (795), 894 states have return successors, (1542), 793 states have call predecessors, (1542), 794 states have call successors, (1542) [2023-04-02 05:16:52,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6895 states to 6895 states and 9533 transitions. [2023-04-02 05:16:52,989 INFO L78 Accepts]: Start accepts. Automaton has 6895 states and 9533 transitions. Word has length 115 [2023-04-02 05:16:52,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:16:52,989 INFO L495 AbstractCegarLoop]: Abstraction has 6895 states and 9533 transitions. [2023-04-02 05:16:52,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 4 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (12), 4 states have call predecessors, (12), 3 states have call successors, (12) [2023-04-02 05:16:52,990 INFO L276 IsEmpty]: Start isEmpty. Operand 6895 states and 9533 transitions. [2023-04-02 05:16:52,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-04-02 05:16:52,991 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:16:52,991 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:16:52,999 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-04-02 05:16:53,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-04-02 05:16:53,198 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:16:53,198 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:16:53,198 INFO L85 PathProgramCache]: Analyzing trace with hash 1880881212, now seen corresponding path program 1 times [2023-04-02 05:16:53,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:16:53,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488789089] [2023-04-02 05:16:53,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:16:53,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:16:53,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:53,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:16:53,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:53,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:16:53,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:53,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:16:53,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:53,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 05:16:53,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:53,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-04-02 05:16:53,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:53,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-04-02 05:16:53,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:53,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-04-02 05:16:53,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:53,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-04-02 05:16:53,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:53,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-04-02 05:16:53,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:53,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 05:16:53,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:53,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-04-02 05:16:53,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:53,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-04-02 05:16:53,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:53,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-04-02 05:16:53,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:53,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-04-02 05:16:53,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:53,408 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-04-02 05:16:53,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:16:53,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488789089] [2023-04-02 05:16:53,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488789089] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 05:16:53,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [970093084] [2023-04-02 05:16:53,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:16:53,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:16:53,408 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 05:16:53,409 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 05:16:53,411 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-04-02 05:16:53,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:53,569 INFO L262 TraceCheckSpWp]: Trace formula consists of 774 conjuncts, 14 conjunts are in the unsatisfiable core [2023-04-02 05:16:53,575 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 05:16:53,691 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 32 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:16:53,692 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-02 05:16:53,901 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 16 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-04-02 05:16:53,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [970093084] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-02 05:16:53,901 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-02 05:16:53,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 6, 9] total 20 [2023-04-02 05:16:53,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684741415] [2023-04-02 05:16:53,901 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-02 05:16:53,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-04-02 05:16:53,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:16:53,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-04-02 05:16:53,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=311, Unknown=0, NotChecked=0, Total=380 [2023-04-02 05:16:53,903 INFO L87 Difference]: Start difference. First operand 6895 states and 9533 transitions. Second operand has 20 states, 19 states have (on average 7.2631578947368425) internal successors, (138), 14 states have internal predecessors, (138), 7 states have call successors, (37), 12 states have call predecessors, (37), 9 states have return successors, (32), 7 states have call predecessors, (32), 7 states have call successors, (32) [2023-04-02 05:16:57,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:16:57,186 INFO L93 Difference]: Finished difference Result 17126 states and 23735 transitions. [2023-04-02 05:16:57,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-04-02 05:16:57,187 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 7.2631578947368425) internal successors, (138), 14 states have internal predecessors, (138), 7 states have call successors, (37), 12 states have call predecessors, (37), 9 states have return successors, (32), 7 states have call predecessors, (32), 7 states have call successors, (32) Word has length 117 [2023-04-02 05:16:57,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:16:57,211 INFO L225 Difference]: With dead ends: 17126 [2023-04-02 05:16:57,211 INFO L226 Difference]: Without dead ends: 10281 [2023-04-02 05:16:57,223 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 262 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 475 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=452, Invalid=1710, Unknown=0, NotChecked=0, Total=2162 [2023-04-02 05:16:57,224 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 1084 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 1925 mSolverCounterSat, 146 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1089 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 2071 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 146 IncrementalHoareTripleChecker+Valid, 1925 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-04-02 05:16:57,224 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1089 Valid, 188 Invalid, 2071 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [146 Valid, 1925 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-04-02 05:16:57,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10281 states. [2023-04-02 05:16:58,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10281 to 9839. [2023-04-02 05:16:58,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9839 states, 7369 states have (on average 1.3459085357579048) internal successors, (9918), 7544 states have internal predecessors, (9918), 1148 states have call successors, (1148), 1148 states have call predecessors, (1148), 1321 states have return successors, (2143), 1146 states have call predecessors, (2143), 1147 states have call successors, (2143) [2023-04-02 05:16:58,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9839 states to 9839 states and 13209 transitions. [2023-04-02 05:16:58,461 INFO L78 Accepts]: Start accepts. Automaton has 9839 states and 13209 transitions. Word has length 117 [2023-04-02 05:16:58,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:16:58,461 INFO L495 AbstractCegarLoop]: Abstraction has 9839 states and 13209 transitions. [2023-04-02 05:16:58,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 7.2631578947368425) internal successors, (138), 14 states have internal predecessors, (138), 7 states have call successors, (37), 12 states have call predecessors, (37), 9 states have return successors, (32), 7 states have call predecessors, (32), 7 states have call successors, (32) [2023-04-02 05:16:58,462 INFO L276 IsEmpty]: Start isEmpty. Operand 9839 states and 13209 transitions. [2023-04-02 05:16:58,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-04-02 05:16:58,464 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:16:58,464 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:16:58,473 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-04-02 05:16:58,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:16:58,671 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:16:58,671 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:16:58,671 INFO L85 PathProgramCache]: Analyzing trace with hash -699323463, now seen corresponding path program 1 times [2023-04-02 05:16:58,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:16:58,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202319196] [2023-04-02 05:16:58,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:16:58,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:16:58,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:58,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:16:58,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:58,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:16:58,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:58,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:16:58,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:58,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 05:16:58,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:58,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-04-02 05:16:58,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:58,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-04-02 05:16:58,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:58,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-04-02 05:16:58,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:58,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-04-02 05:16:58,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:58,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-04-02 05:16:58,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:58,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 05:16:58,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:58,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-04-02 05:16:58,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:58,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-04-02 05:16:58,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:59,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-04-02 05:16:59,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:59,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-04-02 05:16:59,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:59,028 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 18 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-04-02 05:16:59,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:16:59,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202319196] [2023-04-02 05:16:59,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202319196] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 05:16:59,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1746115802] [2023-04-02 05:16:59,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:16:59,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:16:59,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 05:16:59,038 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 05:16:59,039 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-04-02 05:16:59,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:16:59,153 INFO L262 TraceCheckSpWp]: Trace formula consists of 775 conjuncts, 17 conjunts are in the unsatisfiable core [2023-04-02 05:16:59,156 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 05:16:59,645 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-04-02 05:16:59,645 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 05:16:59,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1746115802] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:16:59,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 05:16:59,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [17] total 27 [2023-04-02 05:16:59,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373180501] [2023-04-02 05:16:59,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:16:59,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-04-02 05:16:59,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:16:59,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-04-02 05:16:59,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=618, Unknown=0, NotChecked=0, Total=702 [2023-04-02 05:16:59,647 INFO L87 Difference]: Start difference. First operand 9839 states and 13209 transitions. Second operand has 12 states, 12 states have (on average 7.083333333333333) internal successors, (85), 12 states have internal predecessors, (85), 4 states have call successors, (15), 10 states have call predecessors, (15), 10 states have return successors, (14), 4 states have call predecessors, (14), 3 states have call successors, (14) [2023-04-02 05:17:01,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:17:01,737 INFO L93 Difference]: Finished difference Result 16688 states and 22462 transitions. [2023-04-02 05:17:01,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-04-02 05:17:01,737 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.083333333333333) internal successors, (85), 12 states have internal predecessors, (85), 4 states have call successors, (15), 10 states have call predecessors, (15), 10 states have return successors, (14), 4 states have call predecessors, (14), 3 states have call successors, (14) Word has length 117 [2023-04-02 05:17:01,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:17:01,769 INFO L225 Difference]: With dead ends: 16688 [2023-04-02 05:17:01,769 INFO L226 Difference]: Without dead ends: 14309 [2023-04-02 05:17:01,775 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 179 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=107, Invalid=705, Unknown=0, NotChecked=0, Total=812 [2023-04-02 05:17:01,776 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 653 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 1150 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 659 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 1212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-04-02 05:17:01,776 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [659 Valid, 362 Invalid, 1212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 1150 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-04-02 05:17:01,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14309 states. [2023-04-02 05:17:03,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14309 to 14289. [2023-04-02 05:17:03,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14289 states, 10701 states have (on average 1.347163816465751) internal successors, (14416), 10946 states have internal predecessors, (14416), 1672 states have call successors, (1672), 1672 states have call predecessors, (1672), 1915 states have return successors, (3127), 1670 states have call predecessors, (3127), 1671 states have call successors, (3127) [2023-04-02 05:17:03,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14289 states to 14289 states and 19215 transitions. [2023-04-02 05:17:03,544 INFO L78 Accepts]: Start accepts. Automaton has 14289 states and 19215 transitions. Word has length 117 [2023-04-02 05:17:03,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:17:03,545 INFO L495 AbstractCegarLoop]: Abstraction has 14289 states and 19215 transitions. [2023-04-02 05:17:03,545 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.083333333333333) internal successors, (85), 12 states have internal predecessors, (85), 4 states have call successors, (15), 10 states have call predecessors, (15), 10 states have return successors, (14), 4 states have call predecessors, (14), 3 states have call successors, (14) [2023-04-02 05:17:03,545 INFO L276 IsEmpty]: Start isEmpty. Operand 14289 states and 19215 transitions. [2023-04-02 05:17:03,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-04-02 05:17:03,547 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:17:03,547 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:17:03,555 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-04-02 05:17:03,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-04-02 05:17:03,753 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:17:03,753 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:17:03,753 INFO L85 PathProgramCache]: Analyzing trace with hash 1237744603, now seen corresponding path program 1 times [2023-04-02 05:17:03,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:17:03,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513050700] [2023-04-02 05:17:03,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:17:03,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:17:03,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:17:03,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:17:03,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:17:03,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:17:03,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:17:03,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:17:03,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:17:03,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 05:17:03,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:17:03,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-04-02 05:17:03,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:17:03,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-04-02 05:17:03,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:17:03,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-04-02 05:17:03,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:17:03,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-04-02 05:17:03,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:17:03,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-04-02 05:17:03,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:17:03,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 05:17:03,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:17:03,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-04-02 05:17:03,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:17:03,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-04-02 05:17:03,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:17:03,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-04-02 05:17:03,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:17:03,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-04-02 05:17:03,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:17:03,975 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-04-02 05:17:03,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:17:03,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513050700] [2023-04-02 05:17:03,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513050700] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 05:17:03,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [611152933] [2023-04-02 05:17:03,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:17:03,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:17:03,976 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 05:17:03,977 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 05:17:03,981 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-04-02 05:17:04,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:17:04,091 INFO L262 TraceCheckSpWp]: Trace formula consists of 774 conjuncts, 14 conjunts are in the unsatisfiable core [2023-04-02 05:17:04,094 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 05:17:04,236 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 27 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:17:04,236 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-02 05:17:04,400 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-04-02 05:17:04,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [611152933] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-02 05:17:04,400 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-02 05:17:04,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 8] total 20 [2023-04-02 05:17:04,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218997746] [2023-04-02 05:17:04,401 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-02 05:17:04,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-04-02 05:17:04,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:17:04,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-04-02 05:17:04,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=300, Unknown=0, NotChecked=0, Total=380 [2023-04-02 05:17:04,402 INFO L87 Difference]: Start difference. First operand 14289 states and 19215 transitions. Second operand has 20 states, 19 states have (on average 7.473684210526316) internal successors, (142), 14 states have internal predecessors, (142), 7 states have call successors, (37), 13 states have call predecessors, (37), 10 states have return successors, (32), 7 states have call predecessors, (32), 7 states have call successors, (32) [2023-04-02 05:17:06,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:17:06,452 INFO L93 Difference]: Finished difference Result 21328 states and 28621 transitions. [2023-04-02 05:17:06,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-04-02 05:17:06,453 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 7.473684210526316) internal successors, (142), 14 states have internal predecessors, (142), 7 states have call successors, (37), 13 states have call predecessors, (37), 10 states have return successors, (32), 7 states have call predecessors, (32), 7 states have call successors, (32) Word has length 118 [2023-04-02 05:17:06,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:17:06,467 INFO L225 Difference]: With dead ends: 21328 [2023-04-02 05:17:06,468 INFO L226 Difference]: Without dead ends: 7130 [2023-04-02 05:17:06,486 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 256 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=307, Invalid=883, Unknown=0, NotChecked=0, Total=1190 [2023-04-02 05:17:06,487 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 979 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 692 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 980 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 692 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-04-02 05:17:06,487 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [980 Valid, 100 Invalid, 791 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 692 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-02 05:17:06,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7130 states. [2023-04-02 05:17:07,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7130 to 7081. [2023-04-02 05:17:07,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7081 states, 5293 states have (on average 1.3291139240506329) internal successors, (7035), 5412 states have internal predecessors, (7035), 835 states have call successors, (835), 835 states have call predecessors, (835), 952 states have return successors, (1481), 833 states have call predecessors, (1481), 834 states have call successors, (1481) [2023-04-02 05:17:07,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7081 states to 7081 states and 9351 transitions. [2023-04-02 05:17:07,357 INFO L78 Accepts]: Start accepts. Automaton has 7081 states and 9351 transitions. Word has length 118 [2023-04-02 05:17:07,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:17:07,357 INFO L495 AbstractCegarLoop]: Abstraction has 7081 states and 9351 transitions. [2023-04-02 05:17:07,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 7.473684210526316) internal successors, (142), 14 states have internal predecessors, (142), 7 states have call successors, (37), 13 states have call predecessors, (37), 10 states have return successors, (32), 7 states have call predecessors, (32), 7 states have call successors, (32) [2023-04-02 05:17:07,357 INFO L276 IsEmpty]: Start isEmpty. Operand 7081 states and 9351 transitions. [2023-04-02 05:17:07,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-04-02 05:17:07,358 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:17:07,359 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:17:07,365 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-04-02 05:17:07,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-04-02 05:17:07,565 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:17:07,565 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:17:07,565 INFO L85 PathProgramCache]: Analyzing trace with hash -1623716115, now seen corresponding path program 1 times [2023-04-02 05:17:07,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:17:07,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901770411] [2023-04-02 05:17:07,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:17:07,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:17:07,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:17:07,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:17:07,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:17:07,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:17:07,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:17:07,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:17:07,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:17:07,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 05:17:07,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:17:07,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-04-02 05:17:07,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:17:07,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-04-02 05:17:07,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:17:07,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-04-02 05:17:07,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:17:07,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-04-02 05:17:07,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:17:07,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-04-02 05:17:07,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:17:07,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 05:17:07,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:17:07,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-04-02 05:17:07,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:17:07,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-04-02 05:17:07,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:17:07,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-04-02 05:17:07,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:17:07,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-04-02 05:17:07,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:17:07,797 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-04-02 05:17:07,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:17:07,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901770411] [2023-04-02 05:17:07,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901770411] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 05:17:07,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [936613756] [2023-04-02 05:17:07,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:17:07,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:17:07,798 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 05:17:07,799 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 05:17:07,825 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-04-02 05:17:07,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:17:07,935 INFO L262 TraceCheckSpWp]: Trace formula consists of 777 conjuncts, 14 conjunts are in the unsatisfiable core [2023-04-02 05:17:07,938 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 05:17:08,073 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 22 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:17:08,073 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-02 05:17:08,234 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-04-02 05:17:08,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [936613756] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-02 05:17:08,234 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-02 05:17:08,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 8] total 20 [2023-04-02 05:17:08,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147012097] [2023-04-02 05:17:08,235 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-02 05:17:08,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-04-02 05:17:08,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:17:08,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-04-02 05:17:08,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=300, Unknown=0, NotChecked=0, Total=380 [2023-04-02 05:17:08,239 INFO L87 Difference]: Start difference. First operand 7081 states and 9351 transitions. Second operand has 20 states, 19 states have (on average 7.7368421052631575) internal successors, (147), 14 states have internal predecessors, (147), 7 states have call successors, (37), 14 states have call predecessors, (37), 10 states have return successors, (32), 7 states have call predecessors, (32), 7 states have call successors, (32) [2023-04-02 05:17:11,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:17:11,655 INFO L93 Difference]: Finished difference Result 20996 states and 27980 transitions. [2023-04-02 05:17:11,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-04-02 05:17:11,655 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 7.7368421052631575) internal successors, (147), 14 states have internal predecessors, (147), 7 states have call successors, (37), 14 states have call predecessors, (37), 10 states have return successors, (32), 7 states have call predecessors, (32), 7 states have call successors, (32) Word has length 120 [2023-04-02 05:17:11,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:17:11,695 INFO L225 Difference]: With dead ends: 20996 [2023-04-02 05:17:11,695 INFO L226 Difference]: Without dead ends: 14006 [2023-04-02 05:17:11,708 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 310 GetRequests, 265 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 508 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=495, Invalid=1667, Unknown=0, NotChecked=0, Total=2162 [2023-04-02 05:17:11,709 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 1162 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 1086 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1169 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 1218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 1086 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-04-02 05:17:11,709 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1169 Valid, 123 Invalid, 1218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 1086 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-04-02 05:17:11,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14006 states. [2023-04-02 05:17:13,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14006 to 13367. [2023-04-02 05:17:13,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13367 states, 9861 states have (on average 1.2947976878612717) internal successors, (12768), 10076 states have internal predecessors, (12768), 1646 states have call successors, (1646), 1646 states have call predecessors, (1646), 1859 states have return successors, (3036), 1644 states have call predecessors, (3036), 1645 states have call successors, (3036) [2023-04-02 05:17:13,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13367 states to 13367 states and 17450 transitions. [2023-04-02 05:17:13,451 INFO L78 Accepts]: Start accepts. Automaton has 13367 states and 17450 transitions. Word has length 120 [2023-04-02 05:17:13,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:17:13,451 INFO L495 AbstractCegarLoop]: Abstraction has 13367 states and 17450 transitions. [2023-04-02 05:17:13,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 7.7368421052631575) internal successors, (147), 14 states have internal predecessors, (147), 7 states have call successors, (37), 14 states have call predecessors, (37), 10 states have return successors, (32), 7 states have call predecessors, (32), 7 states have call successors, (32) [2023-04-02 05:17:13,452 INFO L276 IsEmpty]: Start isEmpty. Operand 13367 states and 17450 transitions. [2023-04-02 05:17:13,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-04-02 05:17:13,454 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:17:13,454 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:17:13,473 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-04-02 05:17:13,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:17:13,661 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:17:13,662 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:17:13,662 INFO L85 PathProgramCache]: Analyzing trace with hash 662858139, now seen corresponding path program 1 times [2023-04-02 05:17:13,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:17:13,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842950291] [2023-04-02 05:17:13,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:17:13,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:17:13,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:17:13,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:17:13,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:17:13,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:17:13,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:17:13,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:17:13,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:17:13,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 05:17:13,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:17:13,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-04-02 05:17:13,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:17:13,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-04-02 05:17:13,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:17:13,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-04-02 05:17:13,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:17:13,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-04-02 05:17:13,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:17:13,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-04-02 05:17:13,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:17:13,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 05:17:13,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:17:13,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-04-02 05:17:13,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:17:13,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-04-02 05:17:13,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:17:13,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-04-02 05:17:13,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:17:13,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-04-02 05:17:13,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:17:13,862 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-04-02 05:17:13,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:17:13,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842950291] [2023-04-02 05:17:13,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842950291] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 05:17:13,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1455412818] [2023-04-02 05:17:13,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:17:13,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:17:13,863 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 05:17:13,865 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 05:17:13,867 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-04-02 05:17:13,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:17:13,976 INFO L262 TraceCheckSpWp]: Trace formula consists of 780 conjuncts, 14 conjunts are in the unsatisfiable core [2023-04-02 05:17:13,978 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 05:17:14,117 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 17 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:17:14,117 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-02 05:17:14,270 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-04-02 05:17:14,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1455412818] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-02 05:17:14,270 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-02 05:17:14,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 8] total 20 [2023-04-02 05:17:14,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373791067] [2023-04-02 05:17:14,270 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-02 05:17:14,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-04-02 05:17:14,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:17:14,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-04-02 05:17:14,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=300, Unknown=0, NotChecked=0, Total=380 [2023-04-02 05:17:14,272 INFO L87 Difference]: Start difference. First operand 13367 states and 17450 transitions. Second operand has 20 states, 19 states have (on average 8.0) internal successors, (152), 14 states have internal predecessors, (152), 7 states have call successors, (37), 14 states have call predecessors, (37), 10 states have return successors, (32), 7 states have call predecessors, (32), 7 states have call successors, (32) [2023-04-02 05:17:19,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:17:19,308 INFO L93 Difference]: Finished difference Result 39781 states and 52465 transitions. [2023-04-02 05:17:19,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-04-02 05:17:19,309 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 8.0) internal successors, (152), 14 states have internal predecessors, (152), 7 states have call successors, (37), 14 states have call predecessors, (37), 10 states have return successors, (32), 7 states have call predecessors, (32), 7 states have call successors, (32) Word has length 122 [2023-04-02 05:17:19,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:17:19,374 INFO L225 Difference]: With dead ends: 39781 [2023-04-02 05:17:19,374 INFO L226 Difference]: Without dead ends: 26537 [2023-04-02 05:17:19,395 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 314 GetRequests, 269 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 506 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=493, Invalid=1669, Unknown=0, NotChecked=0, Total=2162 [2023-04-02 05:17:19,396 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 802 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 1405 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 810 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 1465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 1405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-04-02 05:17:19,396 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [810 Valid, 129 Invalid, 1465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 1405 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-04-02 05:17:19,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26537 states. [2023-04-02 05:17:22,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26537 to 25189. [2023-04-02 05:17:22,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25189 states, 18309 states have (on average 1.2566497351029549) internal successors, (23008), 18682 states have internal predecessors, (23008), 3254 states have call successors, (3254), 3254 states have call predecessors, (3254), 3625 states have return successors, (6196), 3252 states have call predecessors, (6196), 3253 states have call successors, (6196) [2023-04-02 05:17:22,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25189 states to 25189 states and 32458 transitions. [2023-04-02 05:17:22,962 INFO L78 Accepts]: Start accepts. Automaton has 25189 states and 32458 transitions. Word has length 122 [2023-04-02 05:17:22,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:17:22,962 INFO L495 AbstractCegarLoop]: Abstraction has 25189 states and 32458 transitions. [2023-04-02 05:17:22,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 8.0) internal successors, (152), 14 states have internal predecessors, (152), 7 states have call successors, (37), 14 states have call predecessors, (37), 10 states have return successors, (32), 7 states have call predecessors, (32), 7 states have call successors, (32) [2023-04-02 05:17:22,962 INFO L276 IsEmpty]: Start isEmpty. Operand 25189 states and 32458 transitions. [2023-04-02 05:17:22,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-04-02 05:17:22,966 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:17:22,966 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:17:22,980 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-04-02 05:17:23,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:17:23,172 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:17:23,172 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:17:23,172 INFO L85 PathProgramCache]: Analyzing trace with hash -1906067383, now seen corresponding path program 1 times [2023-04-02 05:17:23,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:17:23,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035552738] [2023-04-02 05:17:23,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:17:23,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:17:23,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:17:23,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:17:23,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:17:23,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:17:23,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:17:23,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:17:23,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:17:23,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 05:17:23,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:17:23,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-04-02 05:17:23,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:17:23,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-04-02 05:17:23,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:17:23,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-04-02 05:17:23,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:17:23,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-04-02 05:17:23,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:17:23,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-04-02 05:17:23,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:17:23,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-04-02 05:17:23,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:17:23,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-04-02 05:17:23,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:17:23,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-04-02 05:17:23,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:17:23,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-04-02 05:17:23,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:17:23,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-04-02 05:17:23,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:17:23,653 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 10 proven. 7 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-04-02 05:17:23,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:17:23,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035552738] [2023-04-02 05:17:23,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035552738] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 05:17:23,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1238967062] [2023-04-02 05:17:23,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:17:23,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:17:23,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 05:17:23,655 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 05:17:23,657 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-04-02 05:17:23,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:17:23,767 INFO L262 TraceCheckSpWp]: Trace formula consists of 783 conjuncts, 6 conjunts are in the unsatisfiable core [2023-04-02 05:17:23,769 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 05:17:23,862 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-04-02 05:17:23,862 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 05:17:23,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1238967062] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:17:23,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 05:17:23,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [20] total 23 [2023-04-02 05:17:23,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636535258] [2023-04-02 05:17:23,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:17:23,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-02 05:17:23,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:17:23,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-02 05:17:23,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=449, Unknown=0, NotChecked=0, Total=506 [2023-04-02 05:17:23,863 INFO L87 Difference]: Start difference. First operand 25189 states and 32458 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 3 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-04-02 05:17:25,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:17:25,924 INFO L93 Difference]: Finished difference Result 37495 states and 48305 transitions. [2023-04-02 05:17:25,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 05:17:25,924 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 3 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 124 [2023-04-02 05:17:25,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:17:25,952 INFO L225 Difference]: With dead ends: 37495 [2023-04-02 05:17:25,953 INFO L226 Difference]: Without dead ends: 12421 [2023-04-02 05:17:25,983 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=69, Invalid=581, Unknown=0, NotChecked=0, Total=650 [2023-04-02 05:17:25,984 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 152 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-04-02 05:17:25,984 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 84 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 312 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-04-02 05:17:25,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12421 states. [2023-04-02 05:17:27,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12421 to 12419. [2023-04-02 05:17:27,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12419 states, 9001 states have (on average 1.236418175758249) internal successors, (11129), 9184 states have internal predecessors, (11129), 1618 states have call successors, (1618), 1618 states have call predecessors, (1618), 1799 states have return successors, (2758), 1616 states have call predecessors, (2758), 1617 states have call successors, (2758) [2023-04-02 05:17:27,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12419 states to 12419 states and 15505 transitions. [2023-04-02 05:17:27,627 INFO L78 Accepts]: Start accepts. Automaton has 12419 states and 15505 transitions. Word has length 124 [2023-04-02 05:17:27,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:17:27,627 INFO L495 AbstractCegarLoop]: Abstraction has 12419 states and 15505 transitions. [2023-04-02 05:17:27,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 3 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-04-02 05:17:27,628 INFO L276 IsEmpty]: Start isEmpty. Operand 12419 states and 15505 transitions. [2023-04-02 05:17:27,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-04-02 05:17:27,635 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:17:27,635 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:17:27,641 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-04-02 05:17:27,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2023-04-02 05:17:27,840 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:17:27,841 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:17:27,841 INFO L85 PathProgramCache]: Analyzing trace with hash -1995879059, now seen corresponding path program 2 times [2023-04-02 05:17:27,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:17:27,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764213514] [2023-04-02 05:17:27,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:17:27,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:17:27,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:17:28,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:17:28,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:17:28,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:17:28,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:17:28,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:17:28,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:17:28,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 05:17:28,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:17:28,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-04-02 05:17:28,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:17:28,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-04-02 05:17:28,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:17:28,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-04-02 05:17:28,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:17:28,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-04-02 05:17:28,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:17:28,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-04-02 05:17:28,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:17:28,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 05:17:28,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:17:28,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-04-02 05:17:28,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:17:28,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-04-02 05:17:28,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:17:28,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-04-02 05:17:28,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:17:28,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-04-02 05:17:28,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:17:28,495 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 12 proven. 5 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-04-02 05:17:28,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:17:28,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764213514] [2023-04-02 05:17:28,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764213514] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 05:17:28,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1241667527] [2023-04-02 05:17:28,496 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-04-02 05:17:28,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:17:28,496 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 05:17:28,499 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 05:17:28,501 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-04-02 05:17:28,616 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-04-02 05:17:28,616 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-04-02 05:17:28,622 INFO L262 TraceCheckSpWp]: Trace formula consists of 783 conjuncts, 18 conjunts are in the unsatisfiable core [2023-04-02 05:17:28,625 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 05:17:28,923 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 12 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:17:28,923 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-02 05:17:29,187 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 8 proven. 7 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-04-02 05:17:29,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1241667527] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-02 05:17:29,187 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-02 05:17:29,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 9, 7] total 32 [2023-04-02 05:17:29,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79220435] [2023-04-02 05:17:29,187 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-02 05:17:29,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-04-02 05:17:29,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:17:29,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-04-02 05:17:29,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=891, Unknown=0, NotChecked=0, Total=992 [2023-04-02 05:17:29,189 INFO L87 Difference]: Start difference. First operand 12419 states and 15505 transitions. Second operand has 32 states, 31 states have (on average 7.225806451612903) internal successors, (224), 26 states have internal predecessors, (224), 13 states have call successors, (42), 15 states have call predecessors, (42), 16 states have return successors, (41), 13 states have call predecessors, (41), 12 states have call successors, (41) [2023-04-02 05:17:51,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:17:51,460 INFO L93 Difference]: Finished difference Result 79567 states and 103748 transitions. [2023-04-02 05:17:51,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 145 states. [2023-04-02 05:17:51,462 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 7.225806451612903) internal successors, (224), 26 states have internal predecessors, (224), 13 states have call successors, (42), 15 states have call predecessors, (42), 16 states have return successors, (41), 13 states have call predecessors, (41), 12 states have call successors, (41) Word has length 124 [2023-04-02 05:17:51,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:17:51,644 INFO L225 Difference]: With dead ends: 79567 [2023-04-02 05:17:51,644 INFO L226 Difference]: Without dead ends: 66078 [2023-04-02 05:17:51,684 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 504 GetRequests, 332 SyntacticMatches, 0 SemanticMatches, 172 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10632 ImplicationChecksByTransitivity, 11.0s TimeCoverageRelationStatistics Valid=3920, Invalid=26182, Unknown=0, NotChecked=0, Total=30102 [2023-04-02 05:17:51,685 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 5204 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 5336 mSolverCounterSat, 920 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5204 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 6256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 920 IncrementalHoareTripleChecker+Valid, 5336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-04-02 05:17:51,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5204 Valid, 310 Invalid, 6256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [920 Valid, 5336 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-04-02 05:17:51,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66078 states. [2023-04-02 05:18:00,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66078 to 64930. [2023-04-02 05:18:00,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64930 states, 47625 states have (on average 1.2330498687664042) internal successors, (58724), 48719 states have internal predecessors, (58724), 8106 states have call successors, (8106), 8106 states have call predecessors, (8106), 9198 states have return successors, (14637), 8104 states have call predecessors, (14637), 8105 states have call successors, (14637) [2023-04-02 05:18:01,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64930 states to 64930 states and 81467 transitions. [2023-04-02 05:18:01,028 INFO L78 Accepts]: Start accepts. Automaton has 64930 states and 81467 transitions. Word has length 124 [2023-04-02 05:18:01,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:18:01,029 INFO L495 AbstractCegarLoop]: Abstraction has 64930 states and 81467 transitions. [2023-04-02 05:18:01,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 7.225806451612903) internal successors, (224), 26 states have internal predecessors, (224), 13 states have call successors, (42), 15 states have call predecessors, (42), 16 states have return successors, (41), 13 states have call predecessors, (41), 12 states have call successors, (41) [2023-04-02 05:18:01,029 INFO L276 IsEmpty]: Start isEmpty. Operand 64930 states and 81467 transitions. [2023-04-02 05:18:01,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-04-02 05:18:01,031 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:18:01,031 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:18:01,036 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-04-02 05:18:01,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:18:01,236 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:18:01,236 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:18:01,237 INFO L85 PathProgramCache]: Analyzing trace with hash 697682847, now seen corresponding path program 1 times [2023-04-02 05:18:01,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:18:01,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355722776] [2023-04-02 05:18:01,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:18:01,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:18:01,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:18:01,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:18:01,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:18:01,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:18:01,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:18:01,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:18:01,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:18:01,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 05:18:01,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:18:01,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-04-02 05:18:01,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:18:01,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-04-02 05:18:01,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:18:01,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-04-02 05:18:01,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:18:01,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-04-02 05:18:01,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:18:01,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-04-02 05:18:01,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:18:01,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 05:18:01,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:18:01,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-04-02 05:18:01,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:18:01,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-04-02 05:18:01,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:18:01,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-04-02 05:18:01,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:18:01,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-04-02 05:18:01,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:18:01,925 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-04-02 05:18:01,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:18:01,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355722776] [2023-04-02 05:18:01,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355722776] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 05:18:01,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1418519006] [2023-04-02 05:18:01,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:18:01,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:18:01,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 05:18:01,926 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 05:18:01,931 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-04-02 05:18:02,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:18:02,050 INFO L262 TraceCheckSpWp]: Trace formula consists of 786 conjuncts, 20 conjunts are in the unsatisfiable core [2023-04-02 05:18:02,053 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 05:18:02,771 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 18 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:18:02,772 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-02 05:18:03,814 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 11 proven. 8 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-04-02 05:18:03,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1418519006] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-02 05:18:03,815 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-02 05:18:03,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 15, 15] total 45 [2023-04-02 05:18:03,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722125333] [2023-04-02 05:18:03,815 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-02 05:18:03,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2023-04-02 05:18:03,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:18:03,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2023-04-02 05:18:03,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=164, Invalid=1816, Unknown=0, NotChecked=0, Total=1980 [2023-04-02 05:18:03,816 INFO L87 Difference]: Start difference. First operand 64930 states and 81467 transitions. Second operand has 45 states, 43 states have (on average 5.186046511627907) internal successors, (223), 38 states have internal predecessors, (223), 19 states have call successors, (43), 18 states have call predecessors, (43), 17 states have return successors, (39), 14 states have call predecessors, (39), 17 states have call successors, (39) [2023-04-02 05:19:31,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:19:31,387 INFO L93 Difference]: Finished difference Result 543371 states and 690734 transitions. [2023-04-02 05:19:31,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 200 states. [2023-04-02 05:19:31,387 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 43 states have (on average 5.186046511627907) internal successors, (223), 38 states have internal predecessors, (223), 19 states have call successors, (43), 18 states have call predecessors, (43), 17 states have return successors, (39), 14 states have call predecessors, (39), 17 states have call successors, (39) Word has length 125 [2023-04-02 05:19:31,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:19:33,770 INFO L225 Difference]: With dead ends: 543371 [2023-04-02 05:19:33,770 INFO L226 Difference]: Without dead ends: 474943 [2023-04-02 05:19:34,280 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 577 GetRequests, 336 SyntacticMatches, 1 SemanticMatches, 240 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21273 ImplicationChecksByTransitivity, 19.8s TimeCoverageRelationStatistics Valid=6973, Invalid=51349, Unknown=0, NotChecked=0, Total=58322 [2023-04-02 05:19:34,281 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 7223 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 4952 mSolverCounterSat, 1434 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7223 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 6386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1434 IncrementalHoareTripleChecker+Valid, 4952 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-04-02 05:19:34,281 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7223 Valid, 169 Invalid, 6386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1434 Valid, 4952 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-04-02 05:19:34,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474943 states.