/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-var-start-time.5.1.ufo.BOUNDED-10.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 05:11:18,782 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 05:11:18,783 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 05:11:18,811 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 05:11:18,811 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 05:11:18,812 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 05:11:18,813 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 05:11:18,814 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 05:11:18,814 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 05:11:18,815 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 05:11:18,816 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 05:11:18,816 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 05:11:18,816 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 05:11:18,817 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 05:11:18,818 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 05:11:18,818 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 05:11:18,819 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 05:11:18,819 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 05:11:18,821 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 05:11:18,824 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 05:11:18,824 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 05:11:18,826 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 05:11:18,828 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 05:11:18,829 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 05:11:18,832 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-02 05:11:18,832 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-02 05:11:18,832 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-02 05:11:18,833 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-02 05:11:18,833 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-02 05:11:18,834 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-02 05:11:18,834 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 05:11:18,834 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 05:11:18,835 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 05:11:18,835 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 05:11:18,836 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 05:11:18,836 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 05:11:18,836 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 05:11:18,837 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 05:11:18,837 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 05:11:18,837 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 05:11:18,838 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 05:11:18,838 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 05:11:18,852 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 05:11:18,852 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 05:11:18,853 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 05:11:18,853 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 05:11:18,853 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 05:11:18,853 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 05:11:18,854 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-02 05:11:18,854 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-02 05:11:18,854 INFO L138 SettingsManager]: * Use SBE=true [2023-04-02 05:11:18,854 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 05:11:18,854 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 05:11:18,855 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 05:11:18,855 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 05:11:18,855 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 05:11:18,855 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 05:11:18,855 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 05:11:18,855 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 05:11:18,855 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 05:11:18,856 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 05:11:18,856 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 05:11:18,856 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 05:11:18,856 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 05:11:18,856 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-02 05:11:18,856 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 05:11:18,856 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 05:11:18,857 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 05:11:18,857 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 05:11:18,857 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 05:11:18,857 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-02 05:11:18,857 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 05:11:18,857 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-02 05:11:18,857 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 05:11:18,858 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-02 05:11:18,858 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-02 05:11:18,858 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-02 05:11:18,858 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-02 05:11:19,056 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 05:11:19,079 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 05:11:19,081 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 05:11:19,082 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 05:11:19,082 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 05:11:19,083 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c [2023-04-02 05:11:20,130 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 05:11:20,293 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 05:11:20,294 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c [2023-04-02 05:11:20,300 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf254e40d/f9313fbf97824eae8f063800c3d98d21/FLAG91a684d8d [2023-04-02 05:11:20,319 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf254e40d/f9313fbf97824eae8f063800c3d98d21 [2023-04-02 05:11:20,321 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 05:11:20,322 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 05:11:20,323 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 05:11:20,323 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 05:11:20,326 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 05:11:20,326 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 05:11:20" (1/1) ... [2023-04-02 05:11:20,327 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70e17081 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:11:20, skipping insertion in model container [2023-04-02 05:11:20,327 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 05:11:20" (1/1) ... [2023-04-02 05:11:20,336 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 05:11:20,356 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 05:11:20,526 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-var-start-time.5.1.ufo.BOUNDED-10.pals.c[12792,12805] [2023-04-02 05:11:20,529 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 05:11:20,537 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 05:11:20,576 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-var-start-time.5.1.ufo.BOUNDED-10.pals.c[12792,12805] [2023-04-02 05:11:20,584 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 05:11:20,612 INFO L208 MainTranslator]: Completed translation [2023-04-02 05:11:20,613 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:11:20 WrapperNode [2023-04-02 05:11:20,613 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 05:11:20,614 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 05:11:20,614 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 05:11:20,614 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 05:11:20,627 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:11:20" (1/1) ... [2023-04-02 05:11:20,628 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:11:20" (1/1) ... [2023-04-02 05:11:20,649 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:11:20" (1/1) ... [2023-04-02 05:11:20,649 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:11:20" (1/1) ... [2023-04-02 05:11:20,657 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:11:20" (1/1) ... [2023-04-02 05:11:20,662 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:11:20" (1/1) ... [2023-04-02 05:11:20,665 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:11:20" (1/1) ... [2023-04-02 05:11:20,667 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:11:20" (1/1) ... [2023-04-02 05:11:20,669 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 05:11:20,670 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 05:11:20,670 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 05:11:20,670 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 05:11:20,671 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:11:20" (1/1) ... [2023-04-02 05:11:20,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 05:11:20,695 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 05:11:20,712 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 05:11:20,714 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 05:11:20,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 05:11:20,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 05:11:20,744 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 05:11:20,744 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-02 05:11:20,744 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2023-04-02 05:11:20,744 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2023-04-02 05:11:20,744 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2023-04-02 05:11:20,744 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2023-04-02 05:11:20,744 INFO L138 BoogieDeclarations]: Found implementation of procedure node5 [2023-04-02 05:11:20,745 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2023-04-02 05:11:20,745 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2023-04-02 05:11:20,745 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 05:11:20,745 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2023-04-02 05:11:20,745 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 05:11:20,745 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 05:11:20,745 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 05:11:20,745 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 05:11:20,745 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-04-02 05:11:20,745 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2023-04-02 05:11:20,745 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-04-02 05:11:20,746 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-02 05:11:20,746 INFO L130 BoogieDeclarations]: Found specification of procedure read [2023-04-02 05:11:20,746 INFO L130 BoogieDeclarations]: Found specification of procedure write [2023-04-02 05:11:20,746 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2023-04-02 05:11:20,746 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2023-04-02 05:11:20,746 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2023-04-02 05:11:20,746 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2023-04-02 05:11:20,746 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2023-04-02 05:11:20,746 INFO L130 BoogieDeclarations]: Found specification of procedure init [2023-04-02 05:11:20,746 INFO L130 BoogieDeclarations]: Found specification of procedure check [2023-04-02 05:11:20,746 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 05:11:20,747 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 05:11:20,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 05:11:20,747 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 05:11:20,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 05:11:20,747 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 05:11:20,747 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 05:11:20,886 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 05:11:20,888 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 05:11:21,312 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 05:11:21,322 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 05:11:21,322 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-04-02 05:11:21,326 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 05:11:21 BoogieIcfgContainer [2023-04-02 05:11:21,326 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 05:11:21,330 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 05:11:21,330 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 05:11:21,333 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 05:11:21,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 05:11:20" (1/3) ... [2023-04-02 05:11:21,334 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f31b44e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 05:11:21, skipping insertion in model container [2023-04-02 05:11:21,334 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:11:20" (2/3) ... [2023-04-02 05:11:21,334 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f31b44e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 05:11:21, skipping insertion in model container [2023-04-02 05:11:21,334 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 05:11:21" (3/3) ... [2023-04-02 05:11:21,335 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c [2023-04-02 05:11:21,349 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 05:11:21,349 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 05:11:21,425 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 05:11:21,433 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;@32f3ed86, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-02 05:11:21,433 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 05:11:21,439 INFO L276 IsEmpty]: Start isEmpty. Operand has 139 states, 115 states have (on average 1.6521739130434783) internal successors, (190), 116 states have internal predecessors, (190), 11 states have call successors, (11), 11 states have call predecessors, (11), 11 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-04-02 05:11:21,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-04-02 05:11:21,447 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:11:21,448 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] [2023-04-02 05:11:21,448 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:11:21,452 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:11:21,452 INFO L85 PathProgramCache]: Analyzing trace with hash -488445150, now seen corresponding path program 1 times [2023-04-02 05:11:21,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:11:21,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248647804] [2023-04-02 05:11:21,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:11:21,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:11:21,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:21,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:11:21,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:21,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:11:21,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:21,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 05:11:21,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:21,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:11:21,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:21,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-04-02 05:11:21,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:21,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 05:11:21,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:22,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-04-02 05:11:22,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:22,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-04-02 05:11:22,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:22,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-04-02 05:11:22,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:22,053 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 05:11:22,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:11:22,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248647804] [2023-04-02 05:11:22,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248647804] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:11:22,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:11:22,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-02 05:11:22,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143373022] [2023-04-02 05:11:22,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:11:22,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-02 05:11:22,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:11:22,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-02 05:11:22,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-04-02 05:11:22,095 INFO L87 Difference]: Start difference. First operand has 139 states, 115 states have (on average 1.6521739130434783) internal successors, (190), 116 states have internal predecessors, (190), 11 states have call successors, (11), 11 states have call predecessors, (11), 11 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 8 states, 8 states have (on average 5.875) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (11), 8 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-02 05:11:22,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:11:22,813 INFO L93 Difference]: Finished difference Result 236 states and 350 transitions. [2023-04-02 05:11:22,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-04-02 05:11:22,815 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (11), 8 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 67 [2023-04-02 05:11:22,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:11:22,822 INFO L225 Difference]: With dead ends: 236 [2023-04-02 05:11:22,822 INFO L226 Difference]: Without dead ends: 139 [2023-04-02 05:11:22,825 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2023-04-02 05:11:22,828 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 800 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 800 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-04-02 05:11:22,829 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [800 Valid, 89 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-02 05:11:22,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2023-04-02 05:11:22,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 134. [2023-04-02 05:11:22,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 112 states have (on average 1.6339285714285714) internal successors, (183), 112 states have internal predecessors, (183), 11 states have call successors, (11), 11 states have call predecessors, (11), 10 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-04-02 05:11:22,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 204 transitions. [2023-04-02 05:11:22,876 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 204 transitions. Word has length 67 [2023-04-02 05:11:22,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:11:22,876 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 204 transitions. [2023-04-02 05:11:22,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (11), 8 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-02 05:11:22,877 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 204 transitions. [2023-04-02 05:11:22,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-04-02 05:11:22,879 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:11:22,879 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] [2023-04-02 05:11:22,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-02 05:11:22,879 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:11:22,880 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:11:22,880 INFO L85 PathProgramCache]: Analyzing trace with hash 1049894880, now seen corresponding path program 1 times [2023-04-02 05:11:22,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:11:22,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068076784] [2023-04-02 05:11:22,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:11:22,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:11:22,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:23,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:11:23,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:23,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:11:23,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:23,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 05:11:23,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:23,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:11:23,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:23,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-04-02 05:11:23,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:23,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 05:11:23,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:23,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-04-02 05:11:23,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:23,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-04-02 05:11:23,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:23,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-04-02 05:11:23,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:23,382 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 05:11:23,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:11:23,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068076784] [2023-04-02 05:11:23,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068076784] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:11:23,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:11:23,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-04-02 05:11:23,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464675328] [2023-04-02 05:11:23,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:11:23,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-04-02 05:11:23,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:11:23,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-04-02 05:11:23,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2023-04-02 05:11:23,385 INFO L87 Difference]: Start difference. First operand 134 states and 204 transitions. Second operand has 14 states, 13 states have (on average 3.6153846153846154) internal successors, (47), 7 states have internal predecessors, (47), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-02 05:11:24,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:11:24,861 INFO L93 Difference]: Finished difference Result 240 states and 356 transitions. [2023-04-02 05:11:24,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-04-02 05:11:24,861 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.6153846153846154) internal successors, (47), 7 states have internal predecessors, (47), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 67 [2023-04-02 05:11:24,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:11:24,863 INFO L225 Difference]: With dead ends: 240 [2023-04-02 05:11:24,863 INFO L226 Difference]: Without dead ends: 150 [2023-04-02 05:11:24,864 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=125, Invalid=381, Unknown=0, NotChecked=0, Total=506 [2023-04-02 05:11:24,865 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 605 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 1505 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 612 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 1591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 1505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-04-02 05:11:24,865 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [612 Valid, 135 Invalid, 1591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 1505 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-04-02 05:11:24,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2023-04-02 05:11:24,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 134. [2023-04-02 05:11:24,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 112 states have (on average 1.3482142857142858) internal successors, (151), 112 states have internal predecessors, (151), 11 states have call successors, (11), 11 states have call predecessors, (11), 10 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-04-02 05:11:24,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 172 transitions. [2023-04-02 05:11:24,881 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 172 transitions. Word has length 67 [2023-04-02 05:11:24,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:11:24,881 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 172 transitions. [2023-04-02 05:11:24,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.6153846153846154) internal successors, (47), 7 states have internal predecessors, (47), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-02 05:11:24,881 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 172 transitions. [2023-04-02 05:11:24,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-04-02 05:11:24,883 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:11:24,884 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:11:24,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-02 05:11:24,884 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:11:24,884 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:11:24,884 INFO L85 PathProgramCache]: Analyzing trace with hash -807059553, now seen corresponding path program 1 times [2023-04-02 05:11:24,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:11:24,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460030152] [2023-04-02 05:11:24,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:11:24,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:11:24,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:25,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:11:25,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:25,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:11:25,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:25,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 05:11:25,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:25,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-04-02 05:11:25,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:25,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-04-02 05:11:25,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:25,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-04-02 05:11:25,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:25,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-04-02 05:11:25,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:25,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 05:11:25,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:25,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-04-02 05:11:25,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:25,529 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 05:11:25,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:11:25,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460030152] [2023-04-02 05:11:25,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460030152] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:11:25,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:11:25,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-04-02 05:11:25,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969649708] [2023-04-02 05:11:25,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:11:25,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-04-02 05:11:25,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:11:25,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-04-02 05:11:25,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2023-04-02 05:11:25,532 INFO L87 Difference]: Start difference. First operand 134 states and 172 transitions. Second operand has 19 states, 19 states have (on average 4.105263157894737) internal successors, (78), 13 states have internal predecessors, (78), 3 states have call successors, (11), 8 states have call predecessors, (11), 8 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-02 05:11:32,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:11:32,837 INFO L93 Difference]: Finished difference Result 1151 states and 1647 transitions. [2023-04-02 05:11:32,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2023-04-02 05:11:32,837 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.105263157894737) internal successors, (78), 13 states have internal predecessors, (78), 3 states have call successors, (11), 8 states have call predecessors, (11), 8 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 98 [2023-04-02 05:11:32,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:11:32,845 INFO L225 Difference]: With dead ends: 1151 [2023-04-02 05:11:32,845 INFO L226 Difference]: Without dead ends: 1067 [2023-04-02 05:11:32,850 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3822 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=2140, Invalid=9416, Unknown=0, NotChecked=0, Total=11556 [2023-04-02 05:11:32,851 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 3481 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 4465 mSolverCounterSat, 339 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3493 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 4804 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 339 IncrementalHoareTripleChecker+Valid, 4465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-04-02 05:11:32,851 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3493 Valid, 329 Invalid, 4804 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [339 Valid, 4465 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-04-02 05:11:32,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1067 states. [2023-04-02 05:11:32,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1067 to 992. [2023-04-02 05:11:32,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 992 states, 814 states have (on average 1.5061425061425062) internal successors, (1226), 830 states have internal predecessors, (1226), 81 states have call successors, (81), 81 states have call predecessors, (81), 96 states have return successors, (140), 80 states have call predecessors, (140), 80 states have call successors, (140) [2023-04-02 05:11:32,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 992 states to 992 states and 1447 transitions. [2023-04-02 05:11:32,953 INFO L78 Accepts]: Start accepts. Automaton has 992 states and 1447 transitions. Word has length 98 [2023-04-02 05:11:32,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:11:32,954 INFO L495 AbstractCegarLoop]: Abstraction has 992 states and 1447 transitions. [2023-04-02 05:11:32,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 4.105263157894737) internal successors, (78), 13 states have internal predecessors, (78), 3 states have call successors, (11), 8 states have call predecessors, (11), 8 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-02 05:11:32,954 INFO L276 IsEmpty]: Start isEmpty. Operand 992 states and 1447 transitions. [2023-04-02 05:11:32,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-04-02 05:11:32,960 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:11:32,960 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:11:32,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-02 05:11:32,961 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:11:32,961 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:11:32,961 INFO L85 PathProgramCache]: Analyzing trace with hash 604715642, now seen corresponding path program 1 times [2023-04-02 05:11:32,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:11:32,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119352579] [2023-04-02 05:11:32,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:11:32,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:11:32,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:33,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:11:33,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:33,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:11:33,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:33,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 05:11:33,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:33,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-04-02 05:11:33,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:33,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-04-02 05:11:33,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:33,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-04-02 05:11:33,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:33,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-04-02 05:11:33,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:33,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 05:11:33,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:33,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-04-02 05:11:33,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:33,497 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 05:11:33,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:11:33,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119352579] [2023-04-02 05:11:33,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119352579] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:11:33,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:11:33,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-04-02 05:11:33,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623530969] [2023-04-02 05:11:33,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:11:33,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-04-02 05:11:33,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:11:33,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-04-02 05:11:33,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2023-04-02 05:11:33,500 INFO L87 Difference]: Start difference. First operand 992 states and 1447 transitions. Second operand has 18 states, 16 states have (on average 4.9375) internal successors, (79), 9 states have internal predecessors, (79), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-02 05:11:35,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:11:35,247 INFO L93 Difference]: Finished difference Result 1174 states and 1711 transitions. [2023-04-02 05:11:35,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-04-02 05:11:35,248 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 4.9375) internal successors, (79), 9 states have internal predecessors, (79), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 99 [2023-04-02 05:11:35,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:11:35,259 INFO L225 Difference]: With dead ends: 1174 [2023-04-02 05:11:35,260 INFO L226 Difference]: Without dead ends: 1172 [2023-04-02 05:11:35,260 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=167, Invalid=703, Unknown=0, NotChecked=0, Total=870 [2023-04-02 05:11:35,268 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 754 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 2024 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 762 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 2086 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 2024 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-04-02 05:11:35,269 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [762 Valid, 314 Invalid, 2086 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 2024 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-04-02 05:11:35,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1172 states. [2023-04-02 05:11:35,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1172 to 1046. [2023-04-02 05:11:35,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1046 states, 850 states have (on average 1.484705882352941) internal successors, (1262), 872 states have internal predecessors, (1262), 87 states have call successors, (87), 87 states have call predecessors, (87), 108 states have return successors, (152), 86 states have call predecessors, (152), 86 states have call successors, (152) [2023-04-02 05:11:35,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1046 states to 1046 states and 1501 transitions. [2023-04-02 05:11:35,382 INFO L78 Accepts]: Start accepts. Automaton has 1046 states and 1501 transitions. Word has length 99 [2023-04-02 05:11:35,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:11:35,384 INFO L495 AbstractCegarLoop]: Abstraction has 1046 states and 1501 transitions. [2023-04-02 05:11:35,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 4.9375) internal successors, (79), 9 states have internal predecessors, (79), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-02 05:11:35,384 INFO L276 IsEmpty]: Start isEmpty. Operand 1046 states and 1501 transitions. [2023-04-02 05:11:35,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-04-02 05:11:35,387 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:11:35,387 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:11:35,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-02 05:11:35,387 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:11:35,387 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:11:35,387 INFO L85 PathProgramCache]: Analyzing trace with hash -1294908201, now seen corresponding path program 1 times [2023-04-02 05:11:35,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:11:35,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969998586] [2023-04-02 05:11:35,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:11:35,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:11:35,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:35,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:11:35,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:35,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:11:35,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:35,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 05:11:35,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:35,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-04-02 05:11:35,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:35,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-04-02 05:11:35,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:35,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-04-02 05:11:35,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:35,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-04-02 05:11:35,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:35,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 05:11:35,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:35,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-04-02 05:11:35,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:35,734 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 05:11:35,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:11:35,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969998586] [2023-04-02 05:11:35,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969998586] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:11:35,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:11:35,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-04-02 05:11:35,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141424658] [2023-04-02 05:11:35,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:11:35,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-02 05:11:35,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:11:35,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-02 05:11:35,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-04-02 05:11:35,736 INFO L87 Difference]: Start difference. First operand 1046 states and 1501 transitions. Second operand has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-02 05:11:37,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:11:37,176 INFO L93 Difference]: Finished difference Result 3043 states and 4366 transitions. [2023-04-02 05:11:37,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 05:11:37,177 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 100 [2023-04-02 05:11:37,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:11:37,184 INFO L225 Difference]: With dead ends: 3043 [2023-04-02 05:11:37,184 INFO L226 Difference]: Without dead ends: 2047 [2023-04-02 05:11:37,187 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=148, Invalid=404, Unknown=0, NotChecked=0, Total=552 [2023-04-02 05:11:37,187 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 758 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 934 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 764 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 982 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 934 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-04-02 05:11:37,187 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [764 Valid, 105 Invalid, 982 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 934 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-04-02 05:11:37,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2047 states. [2023-04-02 05:11:37,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2047 to 1946. [2023-04-02 05:11:37,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1946 states, 1564 states have (on average 1.477621483375959) internal successors, (2311), 1606 states have internal predecessors, (2311), 170 states have call successors, (170), 170 states have call predecessors, (170), 211 states have return successors, (301), 169 states have call predecessors, (301), 169 states have call successors, (301) [2023-04-02 05:11:37,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1946 states to 1946 states and 2782 transitions. [2023-04-02 05:11:37,381 INFO L78 Accepts]: Start accepts. Automaton has 1946 states and 2782 transitions. Word has length 100 [2023-04-02 05:11:37,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:11:37,382 INFO L495 AbstractCegarLoop]: Abstraction has 1946 states and 2782 transitions. [2023-04-02 05:11:37,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-02 05:11:37,382 INFO L276 IsEmpty]: Start isEmpty. Operand 1946 states and 2782 transitions. [2023-04-02 05:11:37,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-04-02 05:11:37,385 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:11:37,385 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:11:37,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-02 05:11:37,386 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:11:37,386 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:11:37,386 INFO L85 PathProgramCache]: Analyzing trace with hash 675850712, now seen corresponding path program 1 times [2023-04-02 05:11:37,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:11:37,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955316474] [2023-04-02 05:11:37,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:11:37,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:11:37,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:37,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:11:37,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:37,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:11:37,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:37,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 05:11:37,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:37,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-04-02 05:11:37,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:37,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-04-02 05:11:37,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:37,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-04-02 05:11:37,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:37,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-04-02 05:11:37,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:37,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 05:11:37,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:37,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-04-02 05:11:37,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:37,676 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 05:11:37,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:11:37,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955316474] [2023-04-02 05:11:37,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955316474] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:11:37,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:11:37,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-04-02 05:11:37,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986287631] [2023-04-02 05:11:37,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:11:37,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-02 05:11:37,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:11:37,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-02 05:11:37,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-04-02 05:11:37,677 INFO L87 Difference]: Start difference. First operand 1946 states and 2782 transitions. Second operand has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (11), 8 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-02 05:11:39,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:11:39,429 INFO L93 Difference]: Finished difference Result 5698 states and 8155 transitions. [2023-04-02 05:11:39,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-04-02 05:11:39,430 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (11), 8 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 100 [2023-04-02 05:11:39,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:11:39,441 INFO L225 Difference]: With dead ends: 5698 [2023-04-02 05:11:39,441 INFO L226 Difference]: Without dead ends: 3802 [2023-04-02 05:11:39,444 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=208, Invalid=604, Unknown=0, NotChecked=0, Total=812 [2023-04-02 05:11:39,445 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 1042 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 1024 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1049 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 1078 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 1024 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-04-02 05:11:39,445 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1049 Valid, 114 Invalid, 1078 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 1024 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-04-02 05:11:39,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3802 states. [2023-04-02 05:11:39,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3802 to 3599. [2023-04-02 05:11:39,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3599 states, 2894 states have (on average 1.4785763648928818) internal successors, (4279), 2958 states have internal predecessors, (4279), 321 states have call successors, (321), 321 states have call predecessors, (321), 383 states have return successors, (596), 319 states have call predecessors, (596), 320 states have call successors, (596) [2023-04-02 05:11:39,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3599 states to 3599 states and 5196 transitions. [2023-04-02 05:11:39,722 INFO L78 Accepts]: Start accepts. Automaton has 3599 states and 5196 transitions. Word has length 100 [2023-04-02 05:11:39,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:11:39,722 INFO L495 AbstractCegarLoop]: Abstraction has 3599 states and 5196 transitions. [2023-04-02 05:11:39,723 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (11), 8 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-02 05:11:39,723 INFO L276 IsEmpty]: Start isEmpty. Operand 3599 states and 5196 transitions. [2023-04-02 05:11:39,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-04-02 05:11:39,724 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:11:39,724 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:11:39,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-02 05:11:39,724 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:11:39,724 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:11:39,724 INFO L85 PathProgramCache]: Analyzing trace with hash -212460583, now seen corresponding path program 1 times [2023-04-02 05:11:39,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:11:39,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883523059] [2023-04-02 05:11:39,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:11:39,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:11:39,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:39,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:11:39,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:39,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:11:39,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:39,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 05:11:39,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:39,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-04-02 05:11:39,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:39,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-04-02 05:11:39,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:40,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-04-02 05:11:40,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:40,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-04-02 05:11:40,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:40,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-04-02 05:11:40,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:40,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-04-02 05:11:40,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:40,067 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 05:11:40,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:11:40,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883523059] [2023-04-02 05:11:40,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883523059] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:11:40,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:11:40,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-04-02 05:11:40,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285705817] [2023-04-02 05:11:40,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:11:40,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-04-02 05:11:40,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:11:40,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-04-02 05:11:40,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2023-04-02 05:11:40,069 INFO L87 Difference]: Start difference. First operand 3599 states and 5196 transitions. Second operand has 15 states, 15 states have (on average 5.4) internal successors, (81), 9 states have internal predecessors, (81), 5 states have call successors, (11), 9 states have call predecessors, (11), 4 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2023-04-02 05:11:42,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:11:42,543 INFO L93 Difference]: Finished difference Result 9509 states and 13672 transitions. [2023-04-02 05:11:42,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-04-02 05:11:42,544 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.4) internal successors, (81), 9 states have internal predecessors, (81), 5 states have call successors, (11), 9 states have call predecessors, (11), 4 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) Word has length 101 [2023-04-02 05:11:42,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:11:42,566 INFO L225 Difference]: With dead ends: 9509 [2023-04-02 05:11:42,566 INFO L226 Difference]: Without dead ends: 5964 [2023-04-02 05:11:42,573 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=292, Invalid=830, Unknown=0, NotChecked=0, Total=1122 [2023-04-02 05:11:42,574 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 1769 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 848 mSolverCounterSat, 182 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1769 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 1030 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 182 IncrementalHoareTripleChecker+Valid, 848 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-04-02 05:11:42,574 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1769 Valid, 71 Invalid, 1030 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [182 Valid, 848 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-04-02 05:11:42,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5964 states. [2023-04-02 05:11:42,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5964 to 3615. [2023-04-02 05:11:42,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3615 states, 2906 states have (on average 1.4783207157604956) internal successors, (4296), 2972 states have internal predecessors, (4296), 322 states have call successors, (322), 322 states have call predecessors, (322), 386 states have return successors, (599), 320 states have call predecessors, (599), 321 states have call successors, (599) [2023-04-02 05:11:42,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3615 states to 3615 states and 5217 transitions. [2023-04-02 05:11:42,932 INFO L78 Accepts]: Start accepts. Automaton has 3615 states and 5217 transitions. Word has length 101 [2023-04-02 05:11:42,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:11:42,932 INFO L495 AbstractCegarLoop]: Abstraction has 3615 states and 5217 transitions. [2023-04-02 05:11:42,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.4) internal successors, (81), 9 states have internal predecessors, (81), 5 states have call successors, (11), 9 states have call predecessors, (11), 4 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2023-04-02 05:11:42,932 INFO L276 IsEmpty]: Start isEmpty. Operand 3615 states and 5217 transitions. [2023-04-02 05:11:42,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-04-02 05:11:42,933 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:11:42,933 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:11:42,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-02 05:11:42,933 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:11:42,934 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:11:42,934 INFO L85 PathProgramCache]: Analyzing trace with hash -164648429, now seen corresponding path program 1 times [2023-04-02 05:11:42,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:11:42,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945388138] [2023-04-02 05:11:42,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:11:42,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:11:42,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:43,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:11:43,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:43,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:11:43,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:43,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 05:11:43,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:43,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-04-02 05:11:43,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:43,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-04-02 05:11:43,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:43,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-04-02 05:11:43,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:43,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-04-02 05:11:43,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:43,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-04-02 05:11:43,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:43,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-04-02 05:11:43,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:43,309 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 05:11:43,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:11:43,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945388138] [2023-04-02 05:11:43,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945388138] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:11:43,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:11:43,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-04-02 05:11:43,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089142463] [2023-04-02 05:11:43,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:11:43,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-04-02 05:11:43,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:11:43,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-04-02 05:11:43,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2023-04-02 05:11:43,311 INFO L87 Difference]: Start difference. First operand 3615 states and 5217 transitions. Second operand has 15 states, 15 states have (on average 5.4) internal successors, (81), 9 states have internal predecessors, (81), 5 states have call successors, (11), 9 states have call predecessors, (11), 4 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2023-04-02 05:11:45,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:11:45,738 INFO L93 Difference]: Finished difference Result 8916 states and 12759 transitions. [2023-04-02 05:11:45,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-04-02 05:11:45,739 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.4) internal successors, (81), 9 states have internal predecessors, (81), 5 states have call successors, (11), 9 states have call predecessors, (11), 4 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) Word has length 101 [2023-04-02 05:11:45,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:11:45,754 INFO L225 Difference]: With dead ends: 8916 [2023-04-02 05:11:45,754 INFO L226 Difference]: Without dead ends: 5362 [2023-04-02 05:11:45,759 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=292, Invalid=830, Unknown=0, NotChecked=0, Total=1122 [2023-04-02 05:11:45,760 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 1389 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 924 mSolverCounterSat, 138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1389 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 1062 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 924 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-04-02 05:11:45,760 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1389 Valid, 76 Invalid, 1062 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [138 Valid, 924 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-04-02 05:11:45,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5362 states. [2023-04-02 05:11:46,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5362 to 3628. [2023-04-02 05:11:46,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3628 states, 2917 states have (on average 1.4782310593075076) internal successors, (4312), 2983 states have internal predecessors, (4312), 323 states have call successors, (323), 323 states have call predecessors, (323), 387 states have return successors, (600), 321 states have call predecessors, (600), 322 states have call successors, (600) [2023-04-02 05:11:46,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3628 states to 3628 states and 5235 transitions. [2023-04-02 05:11:46,126 INFO L78 Accepts]: Start accepts. Automaton has 3628 states and 5235 transitions. Word has length 101 [2023-04-02 05:11:46,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:11:46,126 INFO L495 AbstractCegarLoop]: Abstraction has 3628 states and 5235 transitions. [2023-04-02 05:11:46,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.4) internal successors, (81), 9 states have internal predecessors, (81), 5 states have call successors, (11), 9 states have call predecessors, (11), 4 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2023-04-02 05:11:46,126 INFO L276 IsEmpty]: Start isEmpty. Operand 3628 states and 5235 transitions. [2023-04-02 05:11:46,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-04-02 05:11:46,127 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:11:46,127 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:11:46,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-04-02 05:11:46,128 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:11:46,128 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:11:46,128 INFO L85 PathProgramCache]: Analyzing trace with hash 643979750, now seen corresponding path program 1 times [2023-04-02 05:11:46,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:11:46,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231827188] [2023-04-02 05:11:46,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:11:46,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:11:46,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:46,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:11:46,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:46,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:11:46,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:46,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 05:11:46,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:46,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-04-02 05:11:46,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:46,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-04-02 05:11:46,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:46,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-04-02 05:11:46,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:46,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-04-02 05:11:46,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:46,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 05:11:46,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:46,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-04-02 05:11:46,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:46,462 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 05:11:46,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:11:46,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231827188] [2023-04-02 05:11:46,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231827188] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:11:46,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:11:46,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-04-02 05:11:46,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420369628] [2023-04-02 05:11:46,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:11:46,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-04-02 05:11:46,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:11:46,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-04-02 05:11:46,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2023-04-02 05:11:46,464 INFO L87 Difference]: Start difference. First operand 3628 states and 5235 transitions. Second operand has 15 states, 15 states have (on average 5.4) internal successors, (81), 9 states have internal predecessors, (81), 5 states have call successors, (11), 9 states have call predecessors, (11), 4 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2023-04-02 05:11:48,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:11:48,792 INFO L93 Difference]: Finished difference Result 7678 states and 10901 transitions. [2023-04-02 05:11:48,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-04-02 05:11:48,793 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.4) internal successors, (81), 9 states have internal predecessors, (81), 5 states have call successors, (11), 9 states have call predecessors, (11), 4 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) Word has length 101 [2023-04-02 05:11:48,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:11:48,809 INFO L225 Difference]: With dead ends: 7678 [2023-04-02 05:11:48,809 INFO L226 Difference]: Without dead ends: 4124 [2023-04-02 05:11:48,818 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=292, Invalid=830, Unknown=0, NotChecked=0, Total=1122 [2023-04-02 05:11:48,820 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 1465 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 915 mSolverCounterSat, 135 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1465 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 1050 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 135 IncrementalHoareTripleChecker+Valid, 915 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-04-02 05:11:48,820 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1465 Valid, 71 Invalid, 1050 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [135 Valid, 915 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-04-02 05:11:48,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4124 states. [2023-04-02 05:11:49,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4124 to 3668. [2023-04-02 05:11:49,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3668 states, 2949 states have (on average 1.4781281790437437) internal successors, (4359), 3017 states have internal predecessors, (4359), 326 states have call successors, (326), 326 states have call predecessors, (326), 392 states have return successors, (606), 324 states have call predecessors, (606), 325 states have call successors, (606) [2023-04-02 05:11:49,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3668 states to 3668 states and 5291 transitions. [2023-04-02 05:11:49,180 INFO L78 Accepts]: Start accepts. Automaton has 3668 states and 5291 transitions. Word has length 101 [2023-04-02 05:11:49,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:11:49,180 INFO L495 AbstractCegarLoop]: Abstraction has 3668 states and 5291 transitions. [2023-04-02 05:11:49,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.4) internal successors, (81), 9 states have internal predecessors, (81), 5 states have call successors, (11), 9 states have call predecessors, (11), 4 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2023-04-02 05:11:49,180 INFO L276 IsEmpty]: Start isEmpty. Operand 3668 states and 5291 transitions. [2023-04-02 05:11:49,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-04-02 05:11:49,181 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:11:49,181 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:11:49,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-04-02 05:11:49,181 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:11:49,182 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:11:49,182 INFO L85 PathProgramCache]: Analyzing trace with hash -331260498, now seen corresponding path program 1 times [2023-04-02 05:11:49,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:11:49,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37601] [2023-04-02 05:11:49,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:11:49,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:11:49,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:49,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:11:49,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:49,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:11:49,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:49,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 05:11:49,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:49,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-04-02 05:11:49,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:49,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-04-02 05:11:49,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:49,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-04-02 05:11:49,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:49,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-04-02 05:11:49,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:49,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-04-02 05:11:49,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:49,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-04-02 05:11:49,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:49,506 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 05:11:49,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:11:49,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37601] [2023-04-02 05:11:49,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37601] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:11:49,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:11:49,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-04-02 05:11:49,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546714697] [2023-04-02 05:11:49,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:11:49,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-04-02 05:11:49,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:11:49,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-04-02 05:11:49,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2023-04-02 05:11:49,508 INFO L87 Difference]: Start difference. First operand 3668 states and 5291 transitions. Second operand has 15 states, 15 states have (on average 5.4) internal successors, (81), 9 states have internal predecessors, (81), 5 states have call successors, (11), 9 states have call predecessors, (11), 4 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2023-04-02 05:11:51,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:11:51,949 INFO L93 Difference]: Finished difference Result 8339 states and 11879 transitions. [2023-04-02 05:11:51,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-04-02 05:11:51,949 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.4) internal successors, (81), 9 states have internal predecessors, (81), 5 states have call successors, (11), 9 states have call predecessors, (11), 4 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) Word has length 101 [2023-04-02 05:11:51,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:11:51,970 INFO L225 Difference]: With dead ends: 8339 [2023-04-02 05:11:51,970 INFO L226 Difference]: Without dead ends: 4766 [2023-04-02 05:11:51,976 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=292, Invalid=830, Unknown=0, NotChecked=0, Total=1122 [2023-04-02 05:11:51,977 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 1359 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 942 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1359 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 1064 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 942 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-04-02 05:11:51,978 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1359 Valid, 72 Invalid, 1064 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 942 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-04-02 05:11:51,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4766 states. [2023-04-02 05:11:52,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4766 to 3702. [2023-04-02 05:11:52,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3702 states, 2977 states have (on average 1.4790057104467584) internal successors, (4403), 3047 states have internal predecessors, (4403), 328 states have call successors, (328), 328 states have call predecessors, (328), 396 states have return successors, (611), 326 states have call predecessors, (611), 327 states have call successors, (611) [2023-04-02 05:11:52,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3702 states to 3702 states and 5342 transitions. [2023-04-02 05:11:52,341 INFO L78 Accepts]: Start accepts. Automaton has 3702 states and 5342 transitions. Word has length 101 [2023-04-02 05:11:52,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:11:52,342 INFO L495 AbstractCegarLoop]: Abstraction has 3702 states and 5342 transitions. [2023-04-02 05:11:52,342 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.4) internal successors, (81), 9 states have internal predecessors, (81), 5 states have call successors, (11), 9 states have call predecessors, (11), 4 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2023-04-02 05:11:52,342 INFO L276 IsEmpty]: Start isEmpty. Operand 3702 states and 5342 transitions. [2023-04-02 05:11:52,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-04-02 05:11:52,344 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:11:52,344 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, 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] [2023-04-02 05:11:52,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-04-02 05:11:52,344 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:11:52,345 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:11:52,345 INFO L85 PathProgramCache]: Analyzing trace with hash -540487331, now seen corresponding path program 1 times [2023-04-02 05:11:52,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:11:52,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989616353] [2023-04-02 05:11:52,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:11:52,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:11:52,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:52,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:11:52,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:52,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:11:52,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:52,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 05:11:52,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:52,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-04-02 05:11:52,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:52,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-04-02 05:11:52,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:52,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-04-02 05:11:52,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:52,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-04-02 05:11:52,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:52,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 05:11:52,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:52,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-04-02 05:11:52,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:52,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-04-02 05:11:52,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:52,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-04-02 05:11:52,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:52,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-04-02 05:11:52,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:52,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-04-02 05:11:52,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:52,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-04-02 05:11:52,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:52,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-04-02 05:11:52,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:52,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-04-02 05:11:52,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:52,652 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2023-04-02 05:11:52,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:11:52,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989616353] [2023-04-02 05:11:52,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989616353] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 05:11:52,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1221017687] [2023-04-02 05:11:52,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:11:52,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:11:52,652 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 05:11:52,660 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 05:11:52,664 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 05:11:52,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:11:52,838 INFO L262 TraceCheckSpWp]: Trace formula consists of 998 conjuncts, 14 conjunts are in the unsatisfiable core [2023-04-02 05:11:52,847 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 05:11:53,127 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 23 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:11:53,127 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-02 05:11:53,351 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 20 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-04-02 05:11:53,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1221017687] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-02 05:11:53,351 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-02 05:11:53,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 8] total 23 [2023-04-02 05:11:53,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620796371] [2023-04-02 05:11:53,351 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-02 05:11:53,352 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-04-02 05:11:53,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:11:53,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-04-02 05:11:53,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=418, Unknown=0, NotChecked=0, Total=506 [2023-04-02 05:11:53,362 INFO L87 Difference]: Start difference. First operand 3702 states and 5342 transitions. Second operand has 23 states, 22 states have (on average 8.272727272727273) internal successors, (182), 16 states have internal predecessors, (182), 8 states have call successors, (43), 15 states have call predecessors, (43), 11 states have return successors, (39), 8 states have call predecessors, (39), 8 states have call successors, (39) [2023-04-02 05:12:02,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:12:02,249 INFO L93 Difference]: Finished difference Result 13952 states and 19918 transitions. [2023-04-02 05:12:02,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2023-04-02 05:12:02,250 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 8.272727272727273) internal successors, (182), 16 states have internal predecessors, (182), 8 states have call successors, (43), 15 states have call predecessors, (43), 11 states have return successors, (39), 8 states have call predecessors, (39), 8 states have call successors, (39) Word has length 151 [2023-04-02 05:12:02,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:12:02,273 INFO L225 Difference]: With dead ends: 13952 [2023-04-02 05:12:02,273 INFO L226 Difference]: Without dead ends: 10332 [2023-04-02 05:12:02,282 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 483 GetRequests, 373 SyntacticMatches, 0 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3980 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=1910, Invalid=10522, Unknown=0, NotChecked=0, Total=12432 [2023-04-02 05:12:02,283 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 3821 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 2916 mSolverCounterSat, 230 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3835 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 3146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 230 IncrementalHoareTripleChecker+Valid, 2916 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-04-02 05:12:02,283 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3835 Valid, 175 Invalid, 3146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [230 Valid, 2916 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-04-02 05:12:02,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10332 states. [2023-04-02 05:12:03,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10332 to 8768. [2023-04-02 05:12:03,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8768 states, 6881 states have (on average 1.4282807731434384) internal successors, (9828), 7077 states have internal predecessors, (9828), 846 states have call successors, (846), 846 states have call predecessors, (846), 1040 states have return successors, (1526), 844 states have call predecessors, (1526), 845 states have call successors, (1526) [2023-04-02 05:12:03,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8768 states to 8768 states and 12200 transitions. [2023-04-02 05:12:03,159 INFO L78 Accepts]: Start accepts. Automaton has 8768 states and 12200 transitions. Word has length 151 [2023-04-02 05:12:03,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:12:03,160 INFO L495 AbstractCegarLoop]: Abstraction has 8768 states and 12200 transitions. [2023-04-02 05:12:03,160 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 8.272727272727273) internal successors, (182), 16 states have internal predecessors, (182), 8 states have call successors, (43), 15 states have call predecessors, (43), 11 states have return successors, (39), 8 states have call predecessors, (39), 8 states have call successors, (39) [2023-04-02 05:12:03,160 INFO L276 IsEmpty]: Start isEmpty. Operand 8768 states and 12200 transitions. [2023-04-02 05:12:03,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-04-02 05:12:03,163 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:12:03,164 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, 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, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:12:03,176 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 05:12:03,369 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,SelfDestructingSolverStorable10 [2023-04-02 05:12:03,370 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:12:03,370 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:12:03,370 INFO L85 PathProgramCache]: Analyzing trace with hash -186368227, now seen corresponding path program 1 times [2023-04-02 05:12:03,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:12:03,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481444204] [2023-04-02 05:12:03,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:12:03,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:12:03,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:03,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:12:03,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:03,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:12:03,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:03,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 05:12:03,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:03,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-04-02 05:12:03,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:03,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-04-02 05:12:03,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:03,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-04-02 05:12:03,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:03,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-04-02 05:12:03,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:03,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 05:12:03,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:03,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-04-02 05:12:03,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:03,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-04-02 05:12:03,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:03,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-04-02 05:12:03,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:03,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-04-02 05:12:03,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:03,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-04-02 05:12:03,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:03,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-04-02 05:12:03,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:03,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-04-02 05:12:03,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:03,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-04-02 05:12:03,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:03,666 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-04-02 05:12:03,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:12:03,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481444204] [2023-04-02 05:12:03,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481444204] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 05:12:03,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [986171334] [2023-04-02 05:12:03,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:12:03,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:12:03,667 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 05:12:03,669 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 05:12:03,671 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 05:12:03,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:03,832 INFO L262 TraceCheckSpWp]: Trace formula consists of 998 conjuncts, 14 conjunts are in the unsatisfiable core [2023-04-02 05:12:03,842 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 05:12:04,018 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 16 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:12:04,019 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-02 05:12:04,233 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 20 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-04-02 05:12:04,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [986171334] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-02 05:12:04,233 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-02 05:12:04,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 8] total 23 [2023-04-02 05:12:04,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472870620] [2023-04-02 05:12:04,233 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-02 05:12:04,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-04-02 05:12:04,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:12:04,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-04-02 05:12:04,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=418, Unknown=0, NotChecked=0, Total=506 [2023-04-02 05:12:04,235 INFO L87 Difference]: Start difference. First operand 8768 states and 12200 transitions. Second operand has 23 states, 22 states have (on average 8.545454545454545) internal successors, (188), 16 states have internal predecessors, (188), 8 states have call successors, (43), 15 states have call predecessors, (43), 11 states have return successors, (39), 8 states have call predecessors, (39), 8 states have call successors, (39) [2023-04-02 05:12:16,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:12:16,113 INFO L93 Difference]: Finished difference Result 42462 states and 59156 transitions. [2023-04-02 05:12:16,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2023-04-02 05:12:16,114 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 8.545454545454545) internal successors, (188), 16 states have internal predecessors, (188), 8 states have call successors, (43), 15 states have call predecessors, (43), 11 states have return successors, (39), 8 states have call predecessors, (39), 8 states have call successors, (39) Word has length 151 [2023-04-02 05:12:16,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:12:16,217 INFO L225 Difference]: With dead ends: 42462 [2023-04-02 05:12:16,217 INFO L226 Difference]: Without dead ends: 33908 [2023-04-02 05:12:16,244 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 483 GetRequests, 373 SyntacticMatches, 0 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3961 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=1901, Invalid=10531, Unknown=0, NotChecked=0, Total=12432 [2023-04-02 05:12:16,245 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 2723 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 4009 mSolverCounterSat, 156 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2736 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 4165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 156 IncrementalHoareTripleChecker+Valid, 4009 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-04-02 05:12:16,245 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2736 Valid, 212 Invalid, 4165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [156 Valid, 4009 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-04-02 05:12:16,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33908 states. [2023-04-02 05:12:19,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33908 to 30606. [2023-04-02 05:12:19,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30606 states, 23271 states have (on average 1.3670233337630526) internal successors, (31812), 23911 states have internal predecessors, (31812), 3348 states have call successors, (3348), 3348 states have call predecessors, (3348), 3986 states have return successors, (6314), 3346 states have call predecessors, (6314), 3347 states have call successors, (6314) [2023-04-02 05:12:19,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30606 states to 30606 states and 41474 transitions. [2023-04-02 05:12:19,866 INFO L78 Accepts]: Start accepts. Automaton has 30606 states and 41474 transitions. Word has length 151 [2023-04-02 05:12:19,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:12:19,867 INFO L495 AbstractCegarLoop]: Abstraction has 30606 states and 41474 transitions. [2023-04-02 05:12:19,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 8.545454545454545) internal successors, (188), 16 states have internal predecessors, (188), 8 states have call successors, (43), 15 states have call predecessors, (43), 11 states have return successors, (39), 8 states have call predecessors, (39), 8 states have call successors, (39) [2023-04-02 05:12:19,867 INFO L276 IsEmpty]: Start isEmpty. Operand 30606 states and 41474 transitions. [2023-04-02 05:12:19,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-04-02 05:12:19,877 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:12:19,877 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:12:19,897 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 05:12:20,083 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,SelfDestructingSolverStorable11 [2023-04-02 05:12:20,083 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:12:20,084 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:12:20,084 INFO L85 PathProgramCache]: Analyzing trace with hash -297481891, now seen corresponding path program 1 times [2023-04-02 05:12:20,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:12:20,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312905935] [2023-04-02 05:12:20,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:12:20,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:12:20,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:20,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:12:20,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:20,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:12:20,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:20,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 05:12:20,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:20,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-04-02 05:12:20,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:20,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-04-02 05:12:20,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:20,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-04-02 05:12:20,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:20,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-04-02 05:12:20,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:20,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 05:12:20,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:20,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-04-02 05:12:20,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:20,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-04-02 05:12:20,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:20,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-04-02 05:12:20,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:21,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-04-02 05:12:21,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:21,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-04-02 05:12:21,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:21,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-04-02 05:12:21,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:21,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-04-02 05:12:21,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:21,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-04-02 05:12:21,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:21,052 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 13 proven. 8 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-04-02 05:12:21,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:12:21,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312905935] [2023-04-02 05:12:21,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312905935] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 05:12:21,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [250591879] [2023-04-02 05:12:21,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:12:21,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:12:21,053 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 05:12:21,057 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 05:12:21,059 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 05:12:21,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:21,224 INFO L262 TraceCheckSpWp]: Trace formula consists of 998 conjuncts, 6 conjunts are in the unsatisfiable core [2023-04-02 05:12:21,227 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 05:12:21,341 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-04-02 05:12:21,341 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 05:12:21,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [250591879] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:12:21,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 05:12:21,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [25] total 28 [2023-04-02 05:12:21,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657582497] [2023-04-02 05:12:21,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:12:21,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-02 05:12:21,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:12:21,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-02 05:12:21,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2023-04-02 05:12:21,345 INFO L87 Difference]: Start difference. First operand 30606 states and 41474 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 3 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-04-02 05:12:25,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:12:25,186 INFO L93 Difference]: Finished difference Result 60802 states and 82460 transitions. [2023-04-02 05:12:25,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 05:12:25,186 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 3 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 151 [2023-04-02 05:12:25,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:12:25,276 INFO L225 Difference]: With dead ends: 60802 [2023-04-02 05:12:25,276 INFO L226 Difference]: Without dead ends: 30432 [2023-04-02 05:12:25,319 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=82, Invalid=848, Unknown=0, NotChecked=0, Total=930 [2023-04-02 05:12:25,320 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 266 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 543 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 543 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-04-02 05:12:25,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [271 Valid, 113 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 543 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-02 05:12:25,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30432 states. [2023-04-02 05:12:28,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30432 to 30430. [2023-04-02 05:12:28,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30430 states, 23133 states have (on average 1.3675701378982406) internal successors, (31636), 23765 states have internal predecessors, (31636), 3333 states have call successors, (3333), 3333 states have call predecessors, (3333), 3963 states have return successors, (6291), 3331 states have call predecessors, (6291), 3332 states have call successors, (6291) [2023-04-02 05:12:29,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30430 states to 30430 states and 41260 transitions. [2023-04-02 05:12:29,035 INFO L78 Accepts]: Start accepts. Automaton has 30430 states and 41260 transitions. Word has length 151 [2023-04-02 05:12:29,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:12:29,036 INFO L495 AbstractCegarLoop]: Abstraction has 30430 states and 41260 transitions. [2023-04-02 05:12:29,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 3 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-04-02 05:12:29,036 INFO L276 IsEmpty]: Start isEmpty. Operand 30430 states and 41260 transitions. [2023-04-02 05:12:29,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-04-02 05:12:29,046 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:12:29,046 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:12:29,056 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 05:12:29,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:12:29,253 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:12:29,253 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:12:29,253 INFO L85 PathProgramCache]: Analyzing trace with hash -1442601281, now seen corresponding path program 2 times [2023-04-02 05:12:29,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:12:29,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487311960] [2023-04-02 05:12:29,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:12:29,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:12:29,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:29,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:12:29,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:29,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:12:29,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:29,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 05:12:29,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:29,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-04-02 05:12:29,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:29,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-04-02 05:12:29,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:29,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-04-02 05:12:29,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:29,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-04-02 05:12:29,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:29,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 05:12:29,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:29,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-04-02 05:12:29,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:29,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-04-02 05:12:30,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:30,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-04-02 05:12:30,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:30,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-04-02 05:12:30,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:30,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-04-02 05:12:30,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:30,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-04-02 05:12:30,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:30,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-04-02 05:12:30,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:30,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-04-02 05:12:30,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:30,060 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-04-02 05:12:30,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:12:30,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487311960] [2023-04-02 05:12:30,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487311960] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 05:12:30,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [147269556] [2023-04-02 05:12:30,060 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-04-02 05:12:30,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:12:30,060 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 05:12:30,061 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 05:12:30,064 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 05:12:30,224 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-04-02 05:12:30,224 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-04-02 05:12:30,228 INFO L262 TraceCheckSpWp]: Trace formula consists of 998 conjuncts, 6 conjunts are in the unsatisfiable core [2023-04-02 05:12:30,231 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 05:12:30,343 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-04-02 05:12:30,343 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 05:12:30,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [147269556] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:12:30,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 05:12:30,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [21] total 24 [2023-04-02 05:12:30,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681120911] [2023-04-02 05:12:30,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:12:30,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-02 05:12:30,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:12:30,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-02 05:12:30,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=492, Unknown=0, NotChecked=0, Total=552 [2023-04-02 05:12:30,345 INFO L87 Difference]: Start difference. First operand 30430 states and 41260 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 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 05:12:34,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:12:34,115 INFO L93 Difference]: Finished difference Result 60626 states and 82246 transitions. [2023-04-02 05:12:34,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 05:12:34,115 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 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 151 [2023-04-02 05:12:34,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:12:34,218 INFO L225 Difference]: With dead ends: 60626 [2023-04-02 05:12:34,218 INFO L226 Difference]: Without dead ends: 30348 [2023-04-02 05:12:34,268 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=72, Invalid=630, Unknown=0, NotChecked=0, Total=702 [2023-04-02 05:12:34,269 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 266 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 532 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 532 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-04-02 05:12:34,269 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [270 Valid, 111 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 532 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-02 05:12:34,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30348 states. [2023-04-02 05:12:38,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30348 to 30346. [2023-04-02 05:12:38,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30346 states, 23067 states have (on average 1.367841505180561) internal successors, (31552), 23695 states have internal predecessors, (31552), 3326 states have call successors, (3326), 3326 states have call predecessors, (3326), 3952 states have return successors, (6280), 3324 states have call predecessors, (6280), 3325 states have call successors, (6280) [2023-04-02 05:12:38,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30346 states to 30346 states and 41158 transitions. [2023-04-02 05:12:38,369 INFO L78 Accepts]: Start accepts. Automaton has 30346 states and 41158 transitions. Word has length 151 [2023-04-02 05:12:38,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:12:38,369 INFO L495 AbstractCegarLoop]: Abstraction has 30346 states and 41158 transitions. [2023-04-02 05:12:38,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 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 05:12:38,370 INFO L276 IsEmpty]: Start isEmpty. Operand 30346 states and 41158 transitions. [2023-04-02 05:12:38,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-04-02 05:12:38,379 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:12:38,379 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:12:38,385 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-04-02 05:12:38,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:12:38,585 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:12:38,586 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:12:38,586 INFO L85 PathProgramCache]: Analyzing trace with hash 1981035421, now seen corresponding path program 3 times [2023-04-02 05:12:38,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:12:38,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573535670] [2023-04-02 05:12:38,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:12:38,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:12:38,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:39,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:12:39,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:39,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:12:39,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:39,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 05:12:39,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:39,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-04-02 05:12:39,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:39,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-04-02 05:12:39,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:39,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-04-02 05:12:39,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:39,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-04-02 05:12:39,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:39,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 05:12:39,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:39,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-04-02 05:12:39,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:39,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-04-02 05:12:39,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:39,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-04-02 05:12:39,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:39,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-04-02 05:12:39,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:39,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-04-02 05:12:39,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:39,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-04-02 05:12:39,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:39,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-04-02 05:12:39,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:39,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-04-02 05:12:39,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:12:39,370 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 13 proven. 5 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-04-02 05:12:39,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:12:39,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573535670] [2023-04-02 05:12:39,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573535670] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 05:12:39,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1983299204] [2023-04-02 05:12:39,370 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-04-02 05:12:39,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:12:39,370 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 05:12:39,371 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 05:12:39,374 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 05:12:39,543 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-04-02 05:12:39,544 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-04-02 05:12:39,548 INFO L262 TraceCheckSpWp]: Trace formula consists of 998 conjuncts, 18 conjunts are in the unsatisfiable core [2023-04-02 05:12:39,551 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 05:12:39,865 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 9 proven. 27 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-04-02 05:12:39,865 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-02 05:12:40,285 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-04-02 05:12:40,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1983299204] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-02 05:12:40,286 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-02 05:12:40,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 8, 7] total 32 [2023-04-02 05:12:40,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913377533] [2023-04-02 05:12:40,286 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-02 05:12:40,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-04-02 05:12:40,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:12:40,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-04-02 05:12:40,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=895, Unknown=0, NotChecked=0, Total=992 [2023-04-02 05:12:40,289 INFO L87 Difference]: Start difference. First operand 30346 states and 41158 transitions. Second operand has 32 states, 31 states have (on average 9.0) internal successors, (279), 25 states have internal predecessors, (279), 12 states have call successors, (48), 14 states have call predecessors, (48), 15 states have return successors, (47), 12 states have call predecessors, (47), 11 states have call successors, (47) [2023-04-02 05:13:20,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:13:20,250 INFO L93 Difference]: Finished difference Result 184736 states and 249478 transitions. [2023-04-02 05:13:20,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 172 states. [2023-04-02 05:13:20,250 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 9.0) internal successors, (279), 25 states have internal predecessors, (279), 12 states have call successors, (48), 14 states have call predecessors, (48), 15 states have return successors, (47), 12 states have call predecessors, (47), 11 states have call successors, (47) Word has length 151 [2023-04-02 05:13:20,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:13:20,961 INFO L225 Difference]: With dead ends: 184736 [2023-04-02 05:13:20,961 INFO L226 Difference]: Without dead ends: 154542 [2023-04-02 05:13:21,042 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 626 GetRequests, 427 SyntacticMatches, 0 SemanticMatches, 199 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15052 ImplicationChecksByTransitivity, 18.3s TimeCoverageRelationStatistics Valid=5143, Invalid=35057, Unknown=0, NotChecked=0, Total=40200 [2023-04-02 05:13:21,043 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 9509 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 5411 mSolverCounterSat, 1110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9509 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 6521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1110 IncrementalHoareTripleChecker+Valid, 5411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2023-04-02 05:13:21,043 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9509 Valid, 212 Invalid, 6521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1110 Valid, 5411 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2023-04-02 05:13:21,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154542 states. [2023-04-02 05:13:39,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154542 to 140138. [2023-04-02 05:13:39,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140138 states, 106095 states have (on average 1.350035345680758) internal successors, (143232), 110301 states have internal predecessors, (143232), 15008 states have call successors, (15008), 14830 states have call predecessors, (15008), 19034 states have return successors, (30814), 15006 states have call predecessors, (30814), 15007 states have call successors, (30814) [2023-04-02 05:13:40,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140138 states to 140138 states and 189054 transitions. [2023-04-02 05:13:40,317 INFO L78 Accepts]: Start accepts. Automaton has 140138 states and 189054 transitions. Word has length 151 [2023-04-02 05:13:40,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:13:40,318 INFO L495 AbstractCegarLoop]: Abstraction has 140138 states and 189054 transitions. [2023-04-02 05:13:40,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 9.0) internal successors, (279), 25 states have internal predecessors, (279), 12 states have call successors, (48), 14 states have call predecessors, (48), 15 states have return successors, (47), 12 states have call predecessors, (47), 11 states have call successors, (47) [2023-04-02 05:13:40,318 INFO L276 IsEmpty]: Start isEmpty. Operand 140138 states and 189054 transitions. [2023-04-02 05:13:40,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-04-02 05:13:40,332 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:13:40,332 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:13:40,339 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-04-02 05:13:40,538 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,SelfDestructingSolverStorable14 [2023-04-02 05:13:40,539 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:13:40,539 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:13:40,539 INFO L85 PathProgramCache]: Analyzing trace with hash 675596868, now seen corresponding path program 1 times [2023-04-02 05:13:40,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:13:40,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996307163] [2023-04-02 05:13:40,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:13:40,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:13:40,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:41,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:13:41,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:41,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:13:41,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:41,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 05:13:41,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:41,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-04-02 05:13:41,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:41,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-04-02 05:13:41,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:41,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-04-02 05:13:41,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:41,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-04-02 05:13:41,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:41,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 05:13:41,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:41,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-04-02 05:13:41,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:41,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-04-02 05:13:41,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:41,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-04-02 05:13:41,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:41,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-04-02 05:13:41,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:41,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-04-02 05:13:41,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:41,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-04-02 05:13:41,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:41,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-04-02 05:13:41,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:41,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-04-02 05:13:41,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:13:41,296 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-04-02 05:13:41,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:13:41,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996307163] [2023-04-02 05:13:41,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996307163] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:13:41,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:13:41,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-04-02 05:13:41,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229812201] [2023-04-02 05:13:41,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:13:41,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-04-02 05:13:41,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:13:41,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-04-02 05:13:41,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2023-04-02 05:13:41,298 INFO L87 Difference]: Start difference. First operand 140138 states and 189054 transitions. Second operand has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 13 states have internal predecessors, (107), 4 states have call successors, (17), 8 states have call predecessors, (17), 8 states have return successors, (16), 4 states have call predecessors, (16), 3 states have call successors, (16) [2023-04-02 05:14:24,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:14:24,920 INFO L93 Difference]: Finished difference Result 311644 states and 424290 transitions. [2023-04-02 05:14:24,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 170 states. [2023-04-02 05:14:24,921 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 13 states have internal predecessors, (107), 4 states have call successors, (17), 8 states have call predecessors, (17), 8 states have return successors, (16), 4 states have call predecessors, (16), 3 states have call successors, (16) Word has length 152 [2023-04-02 05:14:24,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:14:26,271 INFO L225 Difference]: With dead ends: 311644 [2023-04-02 05:14:26,271 INFO L226 Difference]: Without dead ends: 267796 [2023-04-02 05:14:26,408 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 180 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13059 ImplicationChecksByTransitivity, 7.6s TimeCoverageRelationStatistics Valid=4297, Invalid=28645, Unknown=0, NotChecked=0, Total=32942 [2023-04-02 05:14:26,409 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 3597 mSDsluCounter, 449 mSDsCounter, 0 mSdLazyCounter, 7967 mSolverCounterSat, 290 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3619 SdHoareTripleChecker+Valid, 570 SdHoareTripleChecker+Invalid, 8257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 290 IncrementalHoareTripleChecker+Valid, 7967 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2023-04-02 05:14:26,409 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3619 Valid, 570 Invalid, 8257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [290 Valid, 7967 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2023-04-02 05:14:26,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267796 states. [2023-04-02 05:14:58,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267796 to 233426. [2023-04-02 05:14:59,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233426 states, 176713 states have (on average 1.3517624622976239) internal successors, (238874), 183503 states have internal predecessors, (238874), 25099 states have call successors, (25099), 24825 states have call predecessors, (25099), 31613 states have return successors, (52158), 25097 states have call predecessors, (52158), 25098 states have call successors, (52158) [2023-04-02 05:15:00,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233426 states to 233426 states and 316131 transitions. [2023-04-02 05:15:00,305 INFO L78 Accepts]: Start accepts. Automaton has 233426 states and 316131 transitions. Word has length 152 [2023-04-02 05:15:00,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:15:00,305 INFO L495 AbstractCegarLoop]: Abstraction has 233426 states and 316131 transitions. [2023-04-02 05:15:00,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 13 states have internal predecessors, (107), 4 states have call successors, (17), 8 states have call predecessors, (17), 8 states have return successors, (16), 4 states have call predecessors, (16), 3 states have call successors, (16) [2023-04-02 05:15:00,305 INFO L276 IsEmpty]: Start isEmpty. Operand 233426 states and 316131 transitions. [2023-04-02 05:15:00,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-04-02 05:15:00,319 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:15:00,320 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:15:00,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-04-02 05:15:00,320 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:15:00,320 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:15:00,320 INFO L85 PathProgramCache]: Analyzing trace with hash -1862062156, now seen corresponding path program 1 times [2023-04-02 05:15:00,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:15:00,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177386793] [2023-04-02 05:15:00,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:15:00,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:15:00,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:00,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:15:00,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:00,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:15:00,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:00,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 05:15:00,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:00,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-04-02 05:15:00,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:00,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-04-02 05:15:00,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:00,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-04-02 05:15:00,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:00,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-04-02 05:15:00,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:00,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 05:15:00,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:00,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-04-02 05:15:00,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:00,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-04-02 05:15:00,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:00,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-04-02 05:15:00,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:00,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-04-02 05:15:00,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:00,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-04-02 05:15:00,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:00,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-04-02 05:15:00,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:00,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-04-02 05:15:00,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:00,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-04-02 05:15:00,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:15:00,973 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-04-02 05:15:00,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:15:00,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177386793] [2023-04-02 05:15:00,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177386793] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:15:00,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:15:00,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-04-02 05:15:00,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757034295] [2023-04-02 05:15:00,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:15:00,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-04-02 05:15:00,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:15:00,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-04-02 05:15:00,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2023-04-02 05:15:00,975 INFO L87 Difference]: Start difference. First operand 233426 states and 316131 transitions. Second operand has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 13 states have internal predecessors, (107), 4 states have call successors, (16), 8 states have call predecessors, (16), 8 states have return successors, (15), 4 states have call predecessors, (15), 3 states have call successors, (15)