./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--storage--uas.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fcb8e130 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--storage--uas.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 4d59f12bf134f1df229541fa7d7be9025273d18d299c01e889ca23a568445b7a --- Real Ultimate output --- This is Ultimate 0.2.1-dev-fcb8e13 [2021-11-23 02:02:16,673 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 02:02:16,675 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 02:02:16,721 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 02:02:16,722 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 02:02:16,724 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 02:02:16,725 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 02:02:16,729 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 02:02:16,731 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 02:02:16,752 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 02:02:16,753 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 02:02:16,754 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 02:02:16,754 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 02:02:16,756 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 02:02:16,758 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 02:02:16,762 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 02:02:16,765 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 02:02:16,766 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 02:02:16,767 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 02:02:16,769 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 02:02:16,771 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 02:02:16,772 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 02:02:16,773 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 02:02:16,774 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 02:02:16,777 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 02:02:16,779 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 02:02:16,780 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 02:02:16,780 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 02:02:16,781 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 02:02:16,782 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 02:02:16,782 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 02:02:16,783 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 02:02:16,784 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 02:02:16,784 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 02:02:16,785 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 02:02:16,785 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 02:02:16,786 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 02:02:16,786 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 02:02:16,786 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 02:02:16,787 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 02:02:16,787 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 02:02:16,788 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-23 02:02:16,812 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 02:02:16,813 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 02:02:16,813 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 02:02:16,814 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 02:02:16,815 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 02:02:16,815 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 02:02:16,815 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 02:02:16,815 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 02:02:16,815 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 02:02:16,816 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 02:02:16,816 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 02:02:16,817 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 02:02:16,817 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 02:02:16,817 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 02:02:16,817 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 02:02:16,817 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 02:02:16,817 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 02:02:16,817 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 02:02:16,818 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 02:02:16,818 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:02:16,818 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 02:02:16,818 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 02:02:16,818 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 02:02:16,818 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 02:02:16,818 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 02:02:16,819 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-23 02:02:16,819 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-23 02:02:16,819 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 02:02:16,819 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 02:02:16,819 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4d59f12bf134f1df229541fa7d7be9025273d18d299c01e889ca23a568445b7a [2021-11-23 02:02:17,187 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 02:02:17,215 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 02:02:17,217 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 02:02:17,218 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 02:02:17,219 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 02:02:17,220 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--storage--uas.ko-entry_point.cil.out.i [2021-11-23 02:02:17,321 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/729493ae9/fba47a94a9f24ff3b4787fb7a3cd0fea/FLAG3544e6b7e [2021-11-23 02:02:17,920 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 02:02:17,920 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--storage--uas.ko-entry_point.cil.out.i [2021-11-23 02:02:17,953 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/729493ae9/fba47a94a9f24ff3b4787fb7a3cd0fea/FLAG3544e6b7e [2021-11-23 02:02:18,311 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/729493ae9/fba47a94a9f24ff3b4787fb7a3cd0fea [2021-11-23 02:02:18,313 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 02:02:18,314 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 02:02:18,330 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 02:02:18,330 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 02:02:18,333 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 02:02:18,334 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:02:18" (1/1) ... [2021-11-23 02:02:18,334 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62152eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:02:18, skipping insertion in model container [2021-11-23 02:02:18,335 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:02:18" (1/1) ... [2021-11-23 02:02:18,340 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 02:02:18,507 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 02:02:19,697 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--storage--uas.ko-entry_point.cil.out.i[216842,216855] [2021-11-23 02:02:19,756 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:02:19,789 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 02:02:20,057 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--storage--uas.ko-entry_point.cil.out.i[216842,216855] [2021-11-23 02:02:20,078 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:02:20,146 INFO L208 MainTranslator]: Completed translation [2021-11-23 02:02:20,147 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:02:20 WrapperNode [2021-11-23 02:02:20,147 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 02:02:20,149 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 02:02:20,149 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 02:02:20,149 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 02:02:20,154 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:02:20" (1/1) ... [2021-11-23 02:02:20,214 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:02:20" (1/1) ... [2021-11-23 02:02:20,618 INFO L137 Inliner]: procedures = 205, calls = 1417, calls flagged for inlining = 343, calls inlined = 1530, statements flattened = 22569 [2021-11-23 02:02:20,619 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 02:02:20,620 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 02:02:20,620 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 02:02:20,620 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 02:02:20,626 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:02:20" (1/1) ... [2021-11-23 02:02:20,627 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:02:20" (1/1) ... [2021-11-23 02:02:20,732 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:02:20" (1/1) ... [2021-11-23 02:02:20,732 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:02:20" (1/1) ... [2021-11-23 02:02:21,132 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:02:20" (1/1) ... [2021-11-23 02:02:21,217 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:02:20" (1/1) ... [2021-11-23 02:02:21,311 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:02:20" (1/1) ... [2021-11-23 02:02:21,420 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 02:02:21,421 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 02:02:21,422 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 02:02:21,422 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 02:02:21,423 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:02:20" (1/1) ... [2021-11-23 02:02:21,429 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:02:21,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-23 02:02:21,489 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) [2021-11-23 02:02:21,520 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 [2021-11-23 02:02:21,554 INFO L130 BoogieDeclarations]: Found specification of procedure uas_zap_pending [2021-11-23 02:02:21,554 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_zap_pending [2021-11-23 02:02:21,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-23 02:02:21,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-23 02:02:21,555 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 02:02:21,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 02:02:21,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 02:02:21,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 02:02:21,556 INFO L130 BoogieDeclarations]: Found specification of procedure uas_try_complete [2021-11-23 02:02:21,556 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_try_complete [2021-11-23 02:02:21,556 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-23 02:02:21,556 INFO L130 BoogieDeclarations]: Found specification of procedure uas_data_cmplt [2021-11-23 02:02:21,556 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_data_cmplt [2021-11-23 02:02:21,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-23 02:02:21,557 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 02:02:21,557 INFO L130 BoogieDeclarations]: Found specification of procedure uas_disconnect [2021-11-23 02:02:21,557 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_disconnect [2021-11-23 02:02:21,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 02:02:21,557 INFO L130 BoogieDeclarations]: Found specification of procedure uas_stat_cmplt [2021-11-23 02:02:21,557 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_stat_cmplt [2021-11-23 02:02:21,557 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 02:02:21,557 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 02:02:21,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 02:02:21,558 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-23 02:02:21,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-23 02:02:21,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 02:02:21,558 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 02:02:21,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 02:02:22,234 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 02:02:22,235 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 02:02:31,830 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 02:02:31,852 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 02:02:31,852 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-23 02:02:31,857 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:02:31 BoogieIcfgContainer [2021-11-23 02:02:31,857 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 02:02:31,858 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 02:02:31,859 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 02:02:31,861 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 02:02:31,861 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:02:18" (1/3) ... [2021-11-23 02:02:31,862 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63c0888f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:02:31, skipping insertion in model container [2021-11-23 02:02:31,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:02:20" (2/3) ... [2021-11-23 02:02:31,862 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63c0888f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:02:31, skipping insertion in model container [2021-11-23 02:02:31,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:02:31" (3/3) ... [2021-11-23 02:02:31,863 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--usb--storage--uas.ko-entry_point.cil.out.i [2021-11-23 02:02:31,867 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 02:02:31,867 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 120 error locations. [2021-11-23 02:02:31,918 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 02:02:31,924 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 02:02:31,925 INFO L340 AbstractCegarLoop]: Starting to check reachability of 120 error locations. [2021-11-23 02:02:32,001 INFO L276 IsEmpty]: Start isEmpty. Operand has 4813 states, 4672 states have (on average 1.4154537671232876) internal successors, (6613), 4795 states have internal predecessors, (6613), 14 states have call successors, (14), 6 states have call predecessors, (14), 6 states have return successors, (14), 12 states have call predecessors, (14), 14 states have call successors, (14) [2021-11-23 02:02:32,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-23 02:02:32,018 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:02:32,018 INFO L514 BasicCegarLoop]: 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] [2021-11-23 02:02:32,019 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [uas_stat_cmpltErr0ASSERT_VIOLATIONERROR_FUNCTION, uas_stat_cmpltErr1ASSERT_VIOLATIONERROR_FUNCTION, uas_stat_cmpltErr2ASSERT_VIOLATIONERROR_FUNCTION (and 117 more)] === [2021-11-23 02:02:32,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:02:32,023 INFO L85 PathProgramCache]: Analyzing trace with hash 59310693, now seen corresponding path program 1 times [2021-11-23 02:02:32,030 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 02:02:32,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282685645] [2021-11-23 02:02:32,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:02:32,031 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:02:32,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:02:32,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:02:32,473 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 02:02:32,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282685645] [2021-11-23 02:02:32,474 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282685645] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:02:32,474 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:02:32,474 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 02:02:32,476 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187112193] [2021-11-23 02:02:32,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:02:32,482 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 02:02:32,482 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 02:02:32,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 02:02:32,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 02:02:32,513 INFO L87 Difference]: Start difference. First operand has 4813 states, 4672 states have (on average 1.4154537671232876) internal successors, (6613), 4795 states have internal predecessors, (6613), 14 states have call successors, (14), 6 states have call predecessors, (14), 6 states have return successors, (14), 12 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:02:32,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:02:32,684 INFO L93 Difference]: Finished difference Result 9502 states and 13171 transitions. [2021-11-23 02:02:32,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 02:02:32,686 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2021-11-23 02:02:32,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:02:32,719 INFO L225 Difference]: With dead ends: 9502 [2021-11-23 02:02:32,720 INFO L226 Difference]: Without dead ends: 4680 [2021-11-23 02:02:32,737 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 02:02:32,740 INFO L933 BasicCegarLoop]: 6313 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6313 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:02:32,741 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 6313 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 02:02:32,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4680 states. [2021-11-23 02:02:32,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4680 to 4680. [2021-11-23 02:02:32,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4680 states, 4540 states have (on average 1.3801762114537446) internal successors, (6266), 4662 states have internal predecessors, (6266), 14 states have call successors, (14), 6 states have call predecessors, (14), 6 states have return successors, (14), 12 states have call predecessors, (14), 14 states have call successors, (14) [2021-11-23 02:02:32,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4680 states to 4680 states and 6294 transitions. [2021-11-23 02:02:32,884 INFO L78 Accepts]: Start accepts. Automaton has 4680 states and 6294 transitions. Word has length 40 [2021-11-23 02:02:32,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:02:32,885 INFO L470 AbstractCegarLoop]: Abstraction has 4680 states and 6294 transitions. [2021-11-23 02:02:32,885 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:02:32,885 INFO L276 IsEmpty]: Start isEmpty. Operand 4680 states and 6294 transitions. [2021-11-23 02:02:32,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-23 02:02:32,887 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:02:32,887 INFO L514 BasicCegarLoop]: 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] [2021-11-23 02:02:32,888 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 02:02:32,888 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [uas_stat_cmpltErr0ASSERT_VIOLATIONERROR_FUNCTION, uas_stat_cmpltErr1ASSERT_VIOLATIONERROR_FUNCTION, uas_stat_cmpltErr2ASSERT_VIOLATIONERROR_FUNCTION (and 117 more)] === [2021-11-23 02:02:32,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:02:32,889 INFO L85 PathProgramCache]: Analyzing trace with hash 2032659051, now seen corresponding path program 1 times [2021-11-23 02:02:32,889 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 02:02:32,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408358928] [2021-11-23 02:02:32,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:02:32,890 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:02:33,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:02:33,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:02:33,233 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 02:02:33,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408358928] [2021-11-23 02:02:33,233 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408358928] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:02:33,233 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:02:33,234 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:02:33,234 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058275142] [2021-11-23 02:02:33,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:02:33,235 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:02:33,235 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 02:02:33,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:02:33,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:02:33,236 INFO L87 Difference]: Start difference. First operand 4680 states and 6294 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:02:33,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:02:33,521 INFO L93 Difference]: Finished difference Result 13313 states and 17943 transitions. [2021-11-23 02:02:33,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:02:33,523 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2021-11-23 02:02:33,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:02:33,549 INFO L225 Difference]: With dead ends: 13313 [2021-11-23 02:02:33,549 INFO L226 Difference]: Without dead ends: 8652 [2021-11-23 02:02:33,562 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:02:33,563 INFO L933 BasicCegarLoop]: 6295 mSDtfsCounter, 5337 mSDsluCounter, 6256 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5337 SdHoareTripleChecker+Valid, 12551 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:02:33,564 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5337 Valid, 12551 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:02:33,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8652 states. [2021-11-23 02:02:33,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8652 to 8452. [2021-11-23 02:02:33,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8452 states, 8292 states have (on average 1.3835021707670043) internal successors, (11472), 8417 states have internal predecessors, (11472), 28 states have call successors, (28), 12 states have call predecessors, (28), 12 states have return successors, (42), 24 states have call predecessors, (42), 28 states have call successors, (42) [2021-11-23 02:02:33,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8452 states to 8452 states and 11542 transitions. [2021-11-23 02:02:33,750 INFO L78 Accepts]: Start accepts. Automaton has 8452 states and 11542 transitions. Word has length 40 [2021-11-23 02:02:33,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:02:33,750 INFO L470 AbstractCegarLoop]: Abstraction has 8452 states and 11542 transitions. [2021-11-23 02:02:33,750 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:02:33,751 INFO L276 IsEmpty]: Start isEmpty. Operand 8452 states and 11542 transitions. [2021-11-23 02:02:33,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-23 02:02:33,753 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:02:33,753 INFO L514 BasicCegarLoop]: 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] [2021-11-23 02:02:33,753 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 02:02:33,754 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [uas_stat_cmpltErr0ASSERT_VIOLATIONERROR_FUNCTION, uas_stat_cmpltErr1ASSERT_VIOLATIONERROR_FUNCTION, uas_stat_cmpltErr2ASSERT_VIOLATIONERROR_FUNCTION (and 117 more)] === [2021-11-23 02:02:33,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:02:33,755 INFO L85 PathProgramCache]: Analyzing trace with hash 1175362956, now seen corresponding path program 1 times [2021-11-23 02:02:33,755 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 02:02:33,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684020830] [2021-11-23 02:02:33,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:02:33,755 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:02:33,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:02:33,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:02:33,956 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 02:02:33,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684020830] [2021-11-23 02:02:33,956 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684020830] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:02:33,956 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:02:33,956 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:02:33,956 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860735473] [2021-11-23 02:02:33,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:02:33,957 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:02:33,962 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 02:02:33,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:02:33,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:02:33,964 INFO L87 Difference]: Start difference. First operand 8452 states and 11542 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:02:34,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:02:34,276 INFO L93 Difference]: Finished difference Result 20348 states and 27762 transitions. [2021-11-23 02:02:34,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:02:34,276 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2021-11-23 02:02:34,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:02:34,318 INFO L225 Difference]: With dead ends: 20348 [2021-11-23 02:02:34,318 INFO L226 Difference]: Without dead ends: 11915 [2021-11-23 02:02:34,343 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:02:34,346 INFO L933 BasicCegarLoop]: 6295 mSDtfsCounter, 5399 mSDsluCounter, 6256 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5399 SdHoareTripleChecker+Valid, 12551 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:02:34,348 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5399 Valid, 12551 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:02:34,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11915 states. [2021-11-23 02:02:34,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11915 to 11715. [2021-11-23 02:02:34,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11715 states, 11535 states have (on average 1.3832683138274815) internal successors, (15956), 11663 states have internal predecessors, (15956), 42 states have call successors, (42), 18 states have call predecessors, (42), 18 states have return successors, (84), 36 states have call predecessors, (84), 42 states have call successors, (84) [2021-11-23 02:02:34,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11715 states to 11715 states and 16082 transitions. [2021-11-23 02:02:34,696 INFO L78 Accepts]: Start accepts. Automaton has 11715 states and 16082 transitions. Word has length 41 [2021-11-23 02:02:34,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:02:34,697 INFO L470 AbstractCegarLoop]: Abstraction has 11715 states and 16082 transitions. [2021-11-23 02:02:34,697 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:02:34,697 INFO L276 IsEmpty]: Start isEmpty. Operand 11715 states and 16082 transitions. [2021-11-23 02:02:34,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-23 02:02:34,699 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:02:34,699 INFO L514 BasicCegarLoop]: 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] [2021-11-23 02:02:34,699 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 02:02:34,700 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [uas_stat_cmpltErr0ASSERT_VIOLATIONERROR_FUNCTION, uas_stat_cmpltErr1ASSERT_VIOLATIONERROR_FUNCTION, uas_stat_cmpltErr2ASSERT_VIOLATIONERROR_FUNCTION (and 117 more)] === [2021-11-23 02:02:34,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:02:34,701 INFO L85 PathProgramCache]: Analyzing trace with hash 368988797, now seen corresponding path program 1 times [2021-11-23 02:02:34,701 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 02:02:34,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468459115] [2021-11-23 02:02:34,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:02:34,701 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:02:34,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:02:34,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:02:34,835 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 02:02:34,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468459115] [2021-11-23 02:02:34,835 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468459115] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:02:34,836 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:02:34,836 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:02:34,836 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827355186] [2021-11-23 02:02:34,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:02:34,836 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:02:34,836 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 02:02:34,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:02:34,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:02:34,837 INFO L87 Difference]: Start difference. First operand 11715 states and 16082 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:02:35,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:02:35,170 INFO L93 Difference]: Finished difference Result 26312 states and 36124 transitions. [2021-11-23 02:02:35,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:02:35,171 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2021-11-23 02:02:35,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:02:35,216 INFO L225 Difference]: With dead ends: 26312 [2021-11-23 02:02:35,216 INFO L226 Difference]: Without dead ends: 14616 [2021-11-23 02:02:35,246 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:02:35,247 INFO L933 BasicCegarLoop]: 6295 mSDtfsCounter, 5418 mSDsluCounter, 6256 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5418 SdHoareTripleChecker+Valid, 12551 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:02:35,248 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5418 Valid, 12551 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:02:35,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14616 states. [2021-11-23 02:02:35,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14616 to 14416. [2021-11-23 02:02:35,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14416 states, 14216 states have (on average 1.3831598199212156) internal successors, (19663), 14347 states have internal predecessors, (19663), 56 states have call successors, (56), 24 states have call predecessors, (56), 24 states have return successors, (140), 48 states have call predecessors, (140), 56 states have call successors, (140) [2021-11-23 02:02:35,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14416 states to 14416 states and 19859 transitions. [2021-11-23 02:02:35,615 INFO L78 Accepts]: Start accepts. Automaton has 14416 states and 19859 transitions. Word has length 42 [2021-11-23 02:02:35,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:02:35,615 INFO L470 AbstractCegarLoop]: Abstraction has 14416 states and 19859 transitions. [2021-11-23 02:02:35,615 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:02:35,616 INFO L276 IsEmpty]: Start isEmpty. Operand 14416 states and 19859 transitions. [2021-11-23 02:02:35,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-23 02:02:35,618 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:02:35,618 INFO L514 BasicCegarLoop]: 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] [2021-11-23 02:02:35,618 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 02:02:35,618 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION === [uas_stat_cmpltErr0ASSERT_VIOLATIONERROR_FUNCTION, uas_stat_cmpltErr1ASSERT_VIOLATIONERROR_FUNCTION, uas_stat_cmpltErr2ASSERT_VIOLATIONERROR_FUNCTION (and 117 more)] === [2021-11-23 02:02:35,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:02:35,619 INFO L85 PathProgramCache]: Analyzing trace with hash 1141194654, now seen corresponding path program 1 times [2021-11-23 02:02:35,619 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 02:02:35,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389382683] [2021-11-23 02:02:35,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:02:35,619 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:02:35,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:02:35,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:02:35,760 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 02:02:35,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389382683] [2021-11-23 02:02:35,760 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389382683] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:02:35,761 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:02:35,761 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:02:35,761 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302373392] [2021-11-23 02:02:35,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:02:35,761 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:02:35,761 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 02:02:35,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:02:35,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:02:35,765 INFO L87 Difference]: Start difference. First operand 14416 states and 19859 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:02:36,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:02:36,224 INFO L93 Difference]: Finished difference Result 31150 states and 42970 transitions. [2021-11-23 02:02:36,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:02:36,225 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2021-11-23 02:02:36,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:02:36,268 INFO L225 Difference]: With dead ends: 31150 [2021-11-23 02:02:36,268 INFO L226 Difference]: Without dead ends: 16753 [2021-11-23 02:02:36,307 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:02:36,308 INFO L933 BasicCegarLoop]: 6295 mSDtfsCounter, 5437 mSDsluCounter, 6256 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5437 SdHoareTripleChecker+Valid, 12551 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:02:36,310 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5437 Valid, 12551 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:02:36,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16753 states. [2021-11-23 02:02:36,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16753 to 16553. [2021-11-23 02:02:36,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16553 states, 16333 states have (on average 1.3830282250658177) internal successors, (22589), 16467 states have internal predecessors, (22589), 70 states have call successors, (70), 30 states have call predecessors, (70), 30 states have return successors, (210), 60 states have call predecessors, (210), 70 states have call successors, (210) [2021-11-23 02:02:36,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16553 states to 16553 states and 22869 transitions. [2021-11-23 02:02:36,647 INFO L78 Accepts]: Start accepts. Automaton has 16553 states and 22869 transitions. Word has length 43 [2021-11-23 02:02:36,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:02:36,648 INFO L470 AbstractCegarLoop]: Abstraction has 16553 states and 22869 transitions. [2021-11-23 02:02:36,648 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:02:36,648 INFO L276 IsEmpty]: Start isEmpty. Operand 16553 states and 22869 transitions. [2021-11-23 02:02:36,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-23 02:02:36,651 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:02:36,651 INFO L514 BasicCegarLoop]: 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] [2021-11-23 02:02:36,651 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-23 02:02:36,652 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION === [uas_stat_cmpltErr0ASSERT_VIOLATIONERROR_FUNCTION, uas_stat_cmpltErr1ASSERT_VIOLATIONERROR_FUNCTION, uas_stat_cmpltErr2ASSERT_VIOLATIONERROR_FUNCTION (and 117 more)] === [2021-11-23 02:02:36,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:02:36,652 INFO L85 PathProgramCache]: Analyzing trace with hash -290258361, now seen corresponding path program 1 times [2021-11-23 02:02:36,652 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 02:02:36,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468134729] [2021-11-23 02:02:36,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:02:36,653 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:02:36,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:02:36,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:02:36,843 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 02:02:36,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468134729] [2021-11-23 02:02:36,843 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468134729] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:02:36,843 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:02:36,843 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:02:36,843 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112981785] [2021-11-23 02:02:36,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:02:36,844 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:02:36,845 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 02:02:36,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:02:36,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:02:36,845 INFO L87 Difference]: Start difference. First operand 16553 states and 22869 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:02:37,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:02:37,583 INFO L93 Difference]: Finished difference Result 47302 states and 65528 transitions. [2021-11-23 02:02:37,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:02:37,584 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-11-23 02:02:37,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:02:37,707 INFO L225 Difference]: With dead ends: 47302 [2021-11-23 02:02:37,718 INFO L226 Difference]: Without dead ends: 30768 [2021-11-23 02:02:37,754 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:02:37,755 INFO L933 BasicCegarLoop]: 11338 mSDtfsCounter, 5668 mSDsluCounter, 6232 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5668 SdHoareTripleChecker+Valid, 17570 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:02:37,755 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5668 Valid, 17570 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:02:37,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30768 states. [2021-11-23 02:02:38,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30768 to 24055. [2021-11-23 02:02:38,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24055 states, 23835 states have (on average 1.3847702957835117) internal successors, (33006), 23969 states have internal predecessors, (33006), 70 states have call successors, (70), 30 states have call predecessors, (70), 30 states have return successors, (210), 60 states have call predecessors, (210), 70 states have call successors, (210) [2021-11-23 02:02:38,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24055 states to 24055 states and 33286 transitions. [2021-11-23 02:02:38,262 INFO L78 Accepts]: Start accepts. Automaton has 24055 states and 33286 transitions. Word has length 55 [2021-11-23 02:02:38,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:02:38,263 INFO L470 AbstractCegarLoop]: Abstraction has 24055 states and 33286 transitions. [2021-11-23 02:02:38,263 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:02:38,263 INFO L276 IsEmpty]: Start isEmpty. Operand 24055 states and 33286 transitions. [2021-11-23 02:02:38,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-11-23 02:02:38,266 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:02:38,266 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-23 02:02:38,266 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-23 02:02:38,267 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION === [uas_stat_cmpltErr0ASSERT_VIOLATIONERROR_FUNCTION, uas_stat_cmpltErr1ASSERT_VIOLATIONERROR_FUNCTION, uas_stat_cmpltErr2ASSERT_VIOLATIONERROR_FUNCTION (and 117 more)] === [2021-11-23 02:02:38,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:02:38,267 INFO L85 PathProgramCache]: Analyzing trace with hash -2077362117, now seen corresponding path program 1 times [2021-11-23 02:02:38,267 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 02:02:38,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637062291] [2021-11-23 02:02:38,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:02:38,268 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:02:38,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:02:38,436 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:02:38,436 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 02:02:38,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637062291] [2021-11-23 02:02:38,437 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637062291] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:02:38,437 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:02:38,437 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:02:38,437 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228199766] [2021-11-23 02:02:38,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:02:38,437 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:02:38,438 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 02:02:38,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:02:38,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:02:38,438 INFO L87 Difference]: Start difference. First operand 24055 states and 33286 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:02:39,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:02:39,281 INFO L93 Difference]: Finished difference Result 62975 states and 87246 transitions. [2021-11-23 02:02:39,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:02:39,281 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-11-23 02:02:39,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:02:39,374 INFO L225 Difference]: With dead ends: 62975 [2021-11-23 02:02:39,374 INFO L226 Difference]: Without dead ends: 38939 [2021-11-23 02:02:39,419 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:02:39,421 INFO L933 BasicCegarLoop]: 10398 mSDtfsCounter, 4171 mSDsluCounter, 6244 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4171 SdHoareTripleChecker+Valid, 16642 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:02:39,421 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4171 Valid, 16642 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 02:02:39,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38939 states. [2021-11-23 02:02:40,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38939 to 38769. [2021-11-23 02:02:40,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38769 states, 38459 states have (on average 1.387451571803739) internal successors, (53360), 38608 states have internal predecessors, (53360), 130 states have call successors, (130), 60 states have call predecessors, (130), 60 states have return successors, (390), 110 states have call predecessors, (390), 130 states have call successors, (390) [2021-11-23 02:02:40,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38769 states to 38769 states and 53880 transitions. [2021-11-23 02:02:40,442 INFO L78 Accepts]: Start accepts. Automaton has 38769 states and 53880 transitions. Word has length 96 [2021-11-23 02:02:40,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:02:40,444 INFO L470 AbstractCegarLoop]: Abstraction has 38769 states and 53880 transitions. [2021-11-23 02:02:40,444 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:02:40,444 INFO L276 IsEmpty]: Start isEmpty. Operand 38769 states and 53880 transitions. [2021-11-23 02:02:40,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-23 02:02:40,451 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:02:40,451 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:02:40,451 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-23 02:02:40,452 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION === [uas_stat_cmpltErr0ASSERT_VIOLATIONERROR_FUNCTION, uas_stat_cmpltErr1ASSERT_VIOLATIONERROR_FUNCTION, uas_stat_cmpltErr2ASSERT_VIOLATIONERROR_FUNCTION (and 117 more)] === [2021-11-23 02:02:40,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:02:40,452 INFO L85 PathProgramCache]: Analyzing trace with hash 1891581028, now seen corresponding path program 1 times [2021-11-23 02:02:40,453 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 02:02:40,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615892593] [2021-11-23 02:02:40,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:02:40,453 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:02:40,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:02:40,661 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-23 02:02:40,661 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 02:02:40,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615892593] [2021-11-23 02:02:40,662 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615892593] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:02:40,662 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:02:40,662 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:02:40,662 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367672091] [2021-11-23 02:02:40,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:02:40,663 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:02:40,663 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 02:02:40,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:02:40,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:02:40,664 INFO L87 Difference]: Start difference. First operand 38769 states and 53880 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:02:42,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:02:42,242 INFO L93 Difference]: Finished difference Result 125617 states and 174448 transitions. [2021-11-23 02:02:42,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 02:02:42,243 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-11-23 02:02:42,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:02:42,461 INFO L225 Difference]: With dead ends: 125617 [2021-11-23 02:02:42,461 INFO L226 Difference]: Without dead ends: 86867 [2021-11-23 02:02:42,530 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:02:42,531 INFO L933 BasicCegarLoop]: 10496 mSDtfsCounter, 12518 mSDsluCounter, 16766 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12523 SdHoareTripleChecker+Valid, 27262 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:02:42,531 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12523 Valid, 27262 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 02:02:42,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86867 states. [2021-11-23 02:02:43,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86867 to 38789. [2021-11-23 02:02:43,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38789 states, 38479 states have (on average 1.38725018841446) internal successors, (53380), 38628 states have internal predecessors, (53380), 130 states have call successors, (130), 60 states have call predecessors, (130), 60 states have return successors, (390), 110 states have call predecessors, (390), 130 states have call successors, (390) [2021-11-23 02:02:43,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38789 states to 38789 states and 53900 transitions. [2021-11-23 02:02:43,940 INFO L78 Accepts]: Start accepts. Automaton has 38789 states and 53900 transitions. Word has length 113 [2021-11-23 02:02:43,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:02:43,940 INFO L470 AbstractCegarLoop]: Abstraction has 38789 states and 53900 transitions. [2021-11-23 02:02:43,940 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:02:43,940 INFO L276 IsEmpty]: Start isEmpty. Operand 38789 states and 53900 transitions. [2021-11-23 02:02:43,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2021-11-23 02:02:43,944 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:02:43,944 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:02:43,945 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-23 02:02:43,945 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION === [uas_stat_cmpltErr0ASSERT_VIOLATIONERROR_FUNCTION, uas_stat_cmpltErr1ASSERT_VIOLATIONERROR_FUNCTION, uas_stat_cmpltErr2ASSERT_VIOLATIONERROR_FUNCTION (and 117 more)] === [2021-11-23 02:02:43,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:02:43,945 INFO L85 PathProgramCache]: Analyzing trace with hash -1386945588, now seen corresponding path program 1 times [2021-11-23 02:02:43,946 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 02:02:43,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922614323] [2021-11-23 02:02:43,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:02:43,946 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:02:44,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:02:44,123 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:02:44,123 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 02:02:44,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922614323] [2021-11-23 02:02:44,126 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922614323] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:02:44,126 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:02:44,126 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:02:44,126 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076102031] [2021-11-23 02:02:44,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:02:44,127 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:02:44,127 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 02:02:44,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:02:44,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:02:44,128 INFO L87 Difference]: Start difference. First operand 38789 states and 53900 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 1 states have call successors, (4), 1 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:02:45,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:02:45,269 INFO L93 Difference]: Finished difference Result 92613 states and 128794 transitions. [2021-11-23 02:02:45,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:02:45,270 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 1 states have call successors, (4), 1 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 132 [2021-11-23 02:02:45,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:02:45,417 INFO L225 Difference]: With dead ends: 92613 [2021-11-23 02:02:45,417 INFO L226 Difference]: Without dead ends: 53843 [2021-11-23 02:02:45,495 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:02:45,497 INFO L933 BasicCegarLoop]: 10430 mSDtfsCounter, 4447 mSDsluCounter, 5976 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4447 SdHoareTripleChecker+Valid, 16406 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:02:45,497 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4447 Valid, 16406 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:02:45,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53843 states. [2021-11-23 02:02:46,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53843 to 53673. [2021-11-23 02:02:46,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53673 states, 53273 states have (on average 1.3883956225480074) internal successors, (73964), 53437 states have internal predecessors, (73964), 190 states have call successors, (190), 90 states have call predecessors, (190), 90 states have return successors, (570), 160 states have call predecessors, (570), 190 states have call successors, (570) [2021-11-23 02:02:46,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53673 states to 53673 states and 74724 transitions. [2021-11-23 02:02:46,858 INFO L78 Accepts]: Start accepts. Automaton has 53673 states and 74724 transitions. Word has length 132 [2021-11-23 02:02:46,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:02:46,859 INFO L470 AbstractCegarLoop]: Abstraction has 53673 states and 74724 transitions. [2021-11-23 02:02:46,860 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 1 states have call successors, (4), 1 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:02:46,860 INFO L276 IsEmpty]: Start isEmpty. Operand 53673 states and 74724 transitions. [2021-11-23 02:02:46,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2021-11-23 02:02:46,866 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:02:46,866 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:02:46,866 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-23 02:02:46,866 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION === [uas_stat_cmpltErr0ASSERT_VIOLATIONERROR_FUNCTION, uas_stat_cmpltErr1ASSERT_VIOLATIONERROR_FUNCTION, uas_stat_cmpltErr2ASSERT_VIOLATIONERROR_FUNCTION (and 117 more)] === [2021-11-23 02:02:46,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:02:46,867 INFO L85 PathProgramCache]: Analyzing trace with hash -1076879694, now seen corresponding path program 1 times [2021-11-23 02:02:46,867 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 02:02:46,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713771603] [2021-11-23 02:02:46,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:02:46,867 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:02:46,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:02:47,036 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-23 02:02:47,036 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 02:02:47,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713771603] [2021-11-23 02:02:47,037 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713771603] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:02:47,037 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:02:47,037 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:02:47,037 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669647277] [2021-11-23 02:02:47,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:02:47,038 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:02:47,038 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 02:02:47,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:02:47,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:02:47,038 INFO L87 Difference]: Start difference. First operand 53673 states and 74724 transitions. Second operand has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:02:49,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:02:49,547 INFO L93 Difference]: Finished difference Result 173537 states and 241268 transitions. [2021-11-23 02:02:49,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:02:49,548 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 132 [2021-11-23 02:02:49,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:02:49,987 INFO L225 Difference]: With dead ends: 173537 [2021-11-23 02:02:49,987 INFO L226 Difference]: Without dead ends: 119883 [2021-11-23 02:02:50,127 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:02:50,128 INFO L933 BasicCegarLoop]: 10335 mSDtfsCounter, 8773 mSDsluCounter, 12834 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8778 SdHoareTripleChecker+Valid, 23169 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:02:50,129 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8778 Valid, 23169 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 02:02:50,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119883 states. [2021-11-23 02:02:52,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119883 to 53693. [2021-11-23 02:02:52,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53693 states, 53293 states have (on average 1.3882498639596195) internal successors, (73984), 53457 states have internal predecessors, (73984), 190 states have call successors, (190), 90 states have call predecessors, (190), 90 states have return successors, (570), 160 states have call predecessors, (570), 190 states have call successors, (570) [2021-11-23 02:02:52,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53693 states to 53693 states and 74744 transitions. [2021-11-23 02:02:52,449 INFO L78 Accepts]: Start accepts. Automaton has 53693 states and 74744 transitions. Word has length 132 [2021-11-23 02:02:52,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:02:52,449 INFO L470 AbstractCegarLoop]: Abstraction has 53693 states and 74744 transitions. [2021-11-23 02:02:52,449 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:02:52,450 INFO L276 IsEmpty]: Start isEmpty. Operand 53693 states and 74744 transitions. [2021-11-23 02:02:52,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2021-11-23 02:02:52,454 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:02:52,454 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:02:52,454 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-23 02:02:52,455 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION === [uas_stat_cmpltErr0ASSERT_VIOLATIONERROR_FUNCTION, uas_stat_cmpltErr1ASSERT_VIOLATIONERROR_FUNCTION, uas_stat_cmpltErr2ASSERT_VIOLATIONERROR_FUNCTION (and 117 more)] === [2021-11-23 02:02:52,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:02:52,455 INFO L85 PathProgramCache]: Analyzing trace with hash -510788709, now seen corresponding path program 1 times [2021-11-23 02:02:52,455 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 02:02:52,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789536048] [2021-11-23 02:02:52,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:02:52,456 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:02:52,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:02:52,618 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-23 02:02:52,619 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 02:02:52,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789536048] [2021-11-23 02:02:52,619 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789536048] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:02:52,619 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:02:52,619 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:02:52,620 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343685143] [2021-11-23 02:02:52,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:02:52,620 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:02:52,620 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 02:02:52,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:02:52,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:02:52,621 INFO L87 Difference]: Start difference. First operand 53693 states and 74744 transitions. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:02:53,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:02:53,856 INFO L93 Difference]: Finished difference Result 107397 states and 149528 transitions. [2021-11-23 02:02:53,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:02:53,857 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 139 [2021-11-23 02:02:53,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:02:53,983 INFO L225 Difference]: With dead ends: 107397 [2021-11-23 02:02:53,983 INFO L226 Difference]: Without dead ends: 53723 [2021-11-23 02:02:54,034 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:02:54,034 INFO L933 BasicCegarLoop]: 6291 mSDtfsCounter, 0 mSDsluCounter, 6276 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 12567 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:02:54,035 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 12567 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 02:02:54,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53723 states. [2021-11-23 02:02:55,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53723 to 53723. [2021-11-23 02:02:55,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53723 states, 53323 states have (on average 1.3880314310897737) internal successors, (74014), 53487 states have internal predecessors, (74014), 190 states have call successors, (190), 90 states have call predecessors, (190), 90 states have return successors, (570), 160 states have call predecessors, (570), 190 states have call successors, (570) [2021-11-23 02:02:55,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53723 states to 53723 states and 74774 transitions. [2021-11-23 02:02:55,357 INFO L78 Accepts]: Start accepts. Automaton has 53723 states and 74774 transitions. Word has length 139 [2021-11-23 02:02:55,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:02:55,358 INFO L470 AbstractCegarLoop]: Abstraction has 53723 states and 74774 transitions. [2021-11-23 02:02:55,358 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:02:55,358 INFO L276 IsEmpty]: Start isEmpty. Operand 53723 states and 74774 transitions. [2021-11-23 02:02:55,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2021-11-23 02:02:55,363 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:02:55,363 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:02:55,363 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-23 02:02:55,363 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION === [uas_stat_cmpltErr0ASSERT_VIOLATIONERROR_FUNCTION, uas_stat_cmpltErr1ASSERT_VIOLATIONERROR_FUNCTION, uas_stat_cmpltErr2ASSERT_VIOLATIONERROR_FUNCTION (and 117 more)] === [2021-11-23 02:02:55,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:02:55,364 INFO L85 PathProgramCache]: Analyzing trace with hash 2050074137, now seen corresponding path program 1 times [2021-11-23 02:02:55,364 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 02:02:55,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876181016] [2021-11-23 02:02:55,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:02:55,365 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:02:55,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:02:55,528 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-23 02:02:55,528 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 02:02:55,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876181016] [2021-11-23 02:02:55,529 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876181016] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:02:55,529 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:02:55,529 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:02:55,529 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252132536] [2021-11-23 02:02:55,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:02:55,529 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:02:55,530 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 02:02:55,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:02:55,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:02:55,530 INFO L87 Difference]: Start difference. First operand 53723 states and 74774 transitions. Second operand has 4 states, 4 states have (on average 34.25) internal successors, (137), 4 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:02:58,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:02:58,551 INFO L93 Difference]: Finished difference Result 205427 states and 285513 transitions. [2021-11-23 02:02:58,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 02:02:58,552 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 4 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 139 [2021-11-23 02:02:58,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:02:58,885 INFO L225 Difference]: With dead ends: 205427 [2021-11-23 02:02:58,886 INFO L226 Difference]: Without dead ends: 151723 [2021-11-23 02:02:59,148 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:02:59,149 INFO L933 BasicCegarLoop]: 14453 mSDtfsCounter, 12783 mSDsluCounter, 20919 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12793 SdHoareTripleChecker+Valid, 35372 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:02:59,149 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12793 Valid, 35372 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:02:59,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151723 states. [2021-11-23 02:03:00,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151723 to 53743. [2021-11-23 02:03:00,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53743 states, 53343 states have (on average 1.387885945672347) internal successors, (74034), 53507 states have internal predecessors, (74034), 190 states have call successors, (190), 90 states have call predecessors, (190), 90 states have return successors, (570), 160 states have call predecessors, (570), 190 states have call successors, (570) [2021-11-23 02:03:00,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53743 states to 53743 states and 74794 transitions. [2021-11-23 02:03:00,999 INFO L78 Accepts]: Start accepts. Automaton has 53743 states and 74794 transitions. Word has length 139 [2021-11-23 02:03:01,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:03:01,000 INFO L470 AbstractCegarLoop]: Abstraction has 53743 states and 74794 transitions. [2021-11-23 02:03:01,000 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 4 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:03:01,000 INFO L276 IsEmpty]: Start isEmpty. Operand 53743 states and 74794 transitions. [2021-11-23 02:03:01,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2021-11-23 02:03:01,005 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:03:01,005 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:03:01,005 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-23 02:03:01,006 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION === [uas_stat_cmpltErr0ASSERT_VIOLATIONERROR_FUNCTION, uas_stat_cmpltErr1ASSERT_VIOLATIONERROR_FUNCTION, uas_stat_cmpltErr2ASSERT_VIOLATIONERROR_FUNCTION (and 117 more)] === [2021-11-23 02:03:01,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:03:01,006 INFO L85 PathProgramCache]: Analyzing trace with hash 1706841689, now seen corresponding path program 1 times [2021-11-23 02:03:01,006 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 02:03:01,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706282614] [2021-11-23 02:03:01,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:03:01,007 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:03:01,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:03:01,152 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-23 02:03:01,152 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 02:03:01,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706282614] [2021-11-23 02:03:01,153 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706282614] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:03:01,153 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:03:01,153 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:03:01,153 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380477144] [2021-11-23 02:03:01,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:03:01,153 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:03:01,154 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 02:03:01,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:03:01,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:03:01,154 INFO L87 Difference]: Start difference. First operand 53743 states and 74794 transitions. Second operand has 4 states, 4 states have (on average 34.25) internal successors, (137), 4 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:03:02,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:03:02,685 INFO L93 Difference]: Finished difference Result 107557 states and 149688 transitions. [2021-11-23 02:03:02,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 02:03:02,686 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 4 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 139 [2021-11-23 02:03:02,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:03:02,796 INFO L225 Difference]: With dead ends: 107557 [2021-11-23 02:03:02,796 INFO L226 Difference]: Without dead ends: 53833 [2021-11-23 02:03:02,866 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:03:02,867 INFO L933 BasicCegarLoop]: 6285 mSDtfsCounter, 9 mSDsluCounter, 12549 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 18834 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:03:02,867 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 18834 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:03:02,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53833 states. [2021-11-23 02:03:03,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53833 to 53803. [2021-11-23 02:03:04,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53803 states, 53403 states have (on average 1.3874501432503792) internal successors, (74094), 53567 states have internal predecessors, (74094), 190 states have call successors, (190), 90 states have call predecessors, (190), 90 states have return successors, (570), 160 states have call predecessors, (570), 190 states have call successors, (570) [2021-11-23 02:03:04,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53803 states to 53803 states and 74854 transitions. [2021-11-23 02:03:04,260 INFO L78 Accepts]: Start accepts. Automaton has 53803 states and 74854 transitions. Word has length 139 [2021-11-23 02:03:04,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:03:04,260 INFO L470 AbstractCegarLoop]: Abstraction has 53803 states and 74854 transitions. [2021-11-23 02:03:04,261 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 4 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:03:04,261 INFO L276 IsEmpty]: Start isEmpty. Operand 53803 states and 74854 transitions. [2021-11-23 02:03:04,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2021-11-23 02:03:04,264 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:03:04,264 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:03:04,264 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-23 02:03:04,265 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION === [uas_stat_cmpltErr0ASSERT_VIOLATIONERROR_FUNCTION, uas_stat_cmpltErr1ASSERT_VIOLATIONERROR_FUNCTION, uas_stat_cmpltErr2ASSERT_VIOLATIONERROR_FUNCTION (and 117 more)] === [2021-11-23 02:03:04,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:03:04,265 INFO L85 PathProgramCache]: Analyzing trace with hash -1749091945, now seen corresponding path program 1 times [2021-11-23 02:03:04,265 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 02:03:04,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837079804] [2021-11-23 02:03:04,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:03:04,266 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:03:04,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:03:04,384 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-23 02:03:04,384 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 02:03:04,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837079804] [2021-11-23 02:03:04,384 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837079804] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:03:04,385 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:03:04,385 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:03:04,385 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683184211] [2021-11-23 02:03:04,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:03:04,385 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:03:04,385 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 02:03:04,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:03:04,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:03:04,386 INFO L87 Difference]: Start difference. First operand 53803 states and 74854 transitions. Second operand has 4 states, 4 states have (on average 34.25) internal successors, (137), 4 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:03:05,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:03:05,565 INFO L93 Difference]: Finished difference Result 107767 states and 149898 transitions. [2021-11-23 02:03:05,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 02:03:05,566 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 4 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 139 [2021-11-23 02:03:05,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:03:05,667 INFO L225 Difference]: With dead ends: 107767 [2021-11-23 02:03:05,667 INFO L226 Difference]: Without dead ends: 53983 [2021-11-23 02:03:05,749 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:03:05,750 INFO L933 BasicCegarLoop]: 6289 mSDtfsCounter, 24 mSDsluCounter, 12543 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 18832 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:03:05,750 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 18832 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:03:05,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53983 states. [2021-11-23 02:03:06,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53983 to 53863. [2021-11-23 02:03:06,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53863 states, 53463 states have (on average 1.3870153190056675) internal successors, (74154), 53627 states have internal predecessors, (74154), 190 states have call successors, (190), 90 states have call predecessors, (190), 90 states have return successors, (570), 160 states have call predecessors, (570), 190 states have call successors, (570) [2021-11-23 02:03:07,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53863 states to 53863 states and 74914 transitions. [2021-11-23 02:03:07,111 INFO L78 Accepts]: Start accepts. Automaton has 53863 states and 74914 transitions. Word has length 139 [2021-11-23 02:03:07,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:03:07,111 INFO L470 AbstractCegarLoop]: Abstraction has 53863 states and 74914 transitions. [2021-11-23 02:03:07,111 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 4 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:03:07,111 INFO L276 IsEmpty]: Start isEmpty. Operand 53863 states and 74914 transitions. [2021-11-23 02:03:07,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2021-11-23 02:03:07,124 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:03:07,124 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:03:07,124 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-23 02:03:07,125 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION === [uas_stat_cmpltErr0ASSERT_VIOLATIONERROR_FUNCTION, uas_stat_cmpltErr1ASSERT_VIOLATIONERROR_FUNCTION, uas_stat_cmpltErr2ASSERT_VIOLATIONERROR_FUNCTION (and 117 more)] === [2021-11-23 02:03:07,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:03:07,125 INFO L85 PathProgramCache]: Analyzing trace with hash 1403372885, now seen corresponding path program 1 times [2021-11-23 02:03:07,125 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 02:03:07,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141543726] [2021-11-23 02:03:07,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:03:07,126 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:03:07,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:03:07,289 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-23 02:03:07,289 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 02:03:07,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141543726] [2021-11-23 02:03:07,290 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141543726] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:03:07,290 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:03:07,290 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:03:07,290 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975598414] [2021-11-23 02:03:07,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:03:07,290 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:03:07,290 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 02:03:07,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:03:07,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:03:07,291 INFO L87 Difference]: Start difference. First operand 53863 states and 74914 transitions. Second operand has 4 states, 4 states have (on average 34.25) internal successors, (137), 4 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:03:10,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:03:10,126 INFO L93 Difference]: Finished difference Result 173387 states and 241068 transitions. [2021-11-23 02:03:10,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:03:10,127 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 4 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 139 [2021-11-23 02:03:10,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:03:10,372 INFO L225 Difference]: With dead ends: 173387 [2021-11-23 02:03:10,372 INFO L226 Difference]: Without dead ends: 119543 [2021-11-23 02:03:10,447 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:03:10,447 INFO L933 BasicCegarLoop]: 10573 mSDtfsCounter, 12598 mSDsluCounter, 16849 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12603 SdHoareTripleChecker+Valid, 27422 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:03:10,448 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12603 Valid, 27422 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 02:03:10,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119543 states.