./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--rc--imon.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e19ca921 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-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--rc--imon.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 1dadd209c6e3ebdaafa15f295f1ec8ec38d24c8a1f9b514f05808fa8c7c3e21c --- Real Ultimate output --- This is Ultimate 0.2.2-dev-e19ca92 [2021-12-22 14:34:58,681 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 14:34:58,683 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 14:34:58,721 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 14:34:58,722 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 14:34:58,724 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 14:34:58,725 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 14:34:58,727 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 14:34:58,728 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 14:34:58,732 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 14:34:58,733 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 14:34:58,733 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 14:34:58,734 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 14:34:58,734 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 14:34:58,735 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 14:34:58,736 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 14:34:58,736 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 14:34:58,737 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 14:34:58,738 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 14:34:58,739 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 14:34:58,740 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 14:34:58,740 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 14:34:58,741 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 14:34:58,742 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 14:34:58,743 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 14:34:58,743 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 14:34:58,744 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 14:34:58,744 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 14:34:58,744 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 14:34:58,745 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 14:34:58,745 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 14:34:58,746 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 14:34:58,746 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 14:34:58,747 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 14:34:58,747 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 14:34:58,747 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 14:34:58,748 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 14:34:58,748 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 14:34:58,748 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 14:34:58,749 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 14:34:58,749 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 14:34:58,750 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-22 14:34:58,763 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 14:34:58,763 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 14:34:58,764 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 14:34:58,764 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 14:34:58,764 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-22 14:34:58,764 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-22 14:34:58,765 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 14:34:58,765 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 14:34:58,765 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 14:34:58,765 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 14:34:58,766 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 14:34:58,766 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 14:34:58,766 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-22 14:34:58,766 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-22 14:34:58,766 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-22 14:34:58,766 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 14:34:58,766 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 14:34:58,767 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-22 14:34:58,767 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 14:34:58,767 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 14:34:58,767 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-22 14:34:58,767 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 14:34:58,767 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 14:34:58,768 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-22 14:34:58,768 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-22 14:34:58,768 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 14:34:58,768 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-22 14:34:58,768 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-22 14:34:58,768 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-22 14:34:58,768 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-22 14:34:58,769 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 14:34:58,769 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1dadd209c6e3ebdaafa15f295f1ec8ec38d24c8a1f9b514f05808fa8c7c3e21c [2021-12-22 14:34:59,031 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 14:34:59,087 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 14:34:59,089 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 14:34:59,090 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 14:34:59,091 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 14:34:59,092 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--rc--imon.ko-entry_point.cil.out.i [2021-12-22 14:34:59,229 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f602668a/18d8e512380a4c0caeac57b3f752284e/FLAGab2a8c48e [2021-12-22 14:34:59,956 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 14:34:59,956 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--rc--imon.ko-entry_point.cil.out.i [2021-12-22 14:35:00,008 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f602668a/18d8e512380a4c0caeac57b3f752284e/FLAGab2a8c48e [2021-12-22 14:35:00,163 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f602668a/18d8e512380a4c0caeac57b3f752284e [2021-12-22 14:35:00,165 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 14:35:00,166 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 14:35:00,168 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 14:35:00,168 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 14:35:00,171 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 14:35:00,172 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:35:00" (1/1) ... [2021-12-22 14:35:00,173 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a5f36b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:35:00, skipping insertion in model container [2021-12-22 14:35:00,173 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:35:00" (1/1) ... [2021-12-22 14:35:00,178 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 14:35:00,291 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 14:35:01,072 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-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--rc--imon.ko-entry_point.cil.out.i[117505,117518] [2021-12-22 14:35:01,772 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 14:35:01,813 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 14:35:01,944 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-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--rc--imon.ko-entry_point.cil.out.i[117505,117518] [2021-12-22 14:35:02,068 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 14:35:02,165 INFO L208 MainTranslator]: Completed translation [2021-12-22 14:35:02,166 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:35:02 WrapperNode [2021-12-22 14:35:02,166 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 14:35:02,167 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 14:35:02,167 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 14:35:02,167 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 14:35:02,172 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:35:02" (1/1) ... [2021-12-22 14:35:02,321 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:35:02" (1/1) ... [2021-12-22 14:35:02,538 INFO L137 Inliner]: procedures = 229, calls = 2526, calls flagged for inlining = 102, calls inlined = 99, statements flattened = 4859 [2021-12-22 14:35:02,539 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 14:35:02,540 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 14:35:02,540 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 14:35:02,540 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 14:35:02,546 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:35:02" (1/1) ... [2021-12-22 14:35:02,546 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:35:02" (1/1) ... [2021-12-22 14:35:02,598 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:35:02" (1/1) ... [2021-12-22 14:35:02,605 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:35:02" (1/1) ... [2021-12-22 14:35:02,755 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:35:02" (1/1) ... [2021-12-22 14:35:02,775 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:35:02" (1/1) ... [2021-12-22 14:35:02,790 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:35:02" (1/1) ... [2021-12-22 14:35:02,834 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 14:35:02,838 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 14:35:02,838 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 14:35:02,839 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 14:35:02,851 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:35:02" (1/1) ... [2021-12-22 14:35:02,856 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 14:35:02,863 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 14:35:02,913 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) [2021-12-22 14:35:02,915 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 [2021-12-22 14:35:02,962 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2021-12-22 14:35:02,975 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2021-12-22 14:35:02,975 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2021-12-22 14:35:02,975 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2021-12-22 14:35:02,975 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-12-22 14:35:02,975 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-22 14:35:02,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-22 14:35:02,976 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-22 14:35:02,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-22 14:35:02,976 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2021-12-22 14:35:02,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2021-12-22 14:35:02,976 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_rel [2021-12-22 14:35:02,976 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_rel [2021-12-22 14:35:02,976 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_26 [2021-12-22 14:35:02,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_26 [2021-12-22 14:35:02,976 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-12-22 14:35:02,976 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-12-22 14:35:02,976 INFO L130 BoogieDeclarations]: Found specification of procedure usb_make_path [2021-12-22 14:35:02,976 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_make_path [2021-12-22 14:35:02,976 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-22 14:35:03,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-22 14:35:03,055 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2021-12-22 14:35:03,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2021-12-22 14:35:03,055 INFO L130 BoogieDeclarations]: Found specification of procedure send_packet [2021-12-22 14:35:03,055 INFO L138 BoogieDeclarations]: Found implementation of procedure send_packet [2021-12-22 14:35:03,055 INFO L130 BoogieDeclarations]: Found specification of procedure strlcat [2021-12-22 14:35:03,056 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcat [2021-12-22 14:35:03,056 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-22 14:35:03,056 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-22 14:35:03,056 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-22 14:35:03,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-22 14:35:03,056 INFO L130 BoogieDeclarations]: Found specification of procedure imon_disconnect [2021-12-22 14:35:03,056 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_disconnect [2021-12-22 14:35:03,056 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister_dev [2021-12-22 14:35:03,056 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister_dev [2021-12-22 14:35:03,056 INFO L130 BoogieDeclarations]: Found specification of procedure rc_g_keycode_from_table [2021-12-22 14:35:03,056 INFO L138 BoogieDeclarations]: Found implementation of procedure rc_g_keycode_from_table [2021-12-22 14:35:03,056 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-22 14:35:03,056 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-22 14:35:03,056 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2021-12-22 14:35:03,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2021-12-22 14:35:03,056 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-22 14:35:03,056 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-22 14:35:03,056 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-22 14:35:03,056 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2021-12-22 14:35:03,057 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2021-12-22 14:35:03,057 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_10 [2021-12-22 14:35:03,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_10 [2021-12-22 14:35:03,057 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-22 14:35:03,057 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_11 [2021-12-22 14:35:03,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_11 [2021-12-22 14:35:03,057 INFO L130 BoogieDeclarations]: Found specification of procedure input_allocate_device [2021-12-22 14:35:03,057 INFO L138 BoogieDeclarations]: Found implementation of procedure input_allocate_device [2021-12-22 14:35:03,057 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-22 14:35:03,057 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-22 14:35:03,057 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_dev [2021-12-22 14:35:03,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_dev [2021-12-22 14:35:03,057 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-22 14:35:03,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-22 14:35:03,057 INFO L130 BoogieDeclarations]: Found specification of procedure do_gettimeofday [2021-12-22 14:35:03,057 INFO L138 BoogieDeclarations]: Found implementation of procedure do_gettimeofday [2021-12-22 14:35:03,057 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-22 14:35:03,057 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-22 14:35:03,058 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-22 14:35:03,058 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-22 14:35:03,058 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-22 14:35:03,058 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-22 14:35:03,058 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-12-22 14:35:03,058 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-12-22 14:35:03,058 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_drvdata [2021-12-22 14:35:03,058 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_drvdata [2021-12-22 14:35:03,058 INFO L130 BoogieDeclarations]: Found specification of procedure usb_rx_callback_intf1 [2021-12-22 14:35:03,058 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_rx_callback_intf1 [2021-12-22 14:35:03,058 INFO L130 BoogieDeclarations]: Found specification of procedure usb_rx_callback_intf0 [2021-12-22 14:35:03,058 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_rx_callback_intf0 [2021-12-22 14:35:03,058 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_key [2021-12-22 14:35:03,058 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_key [2021-12-22 14:35:03,058 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-22 14:35:03,058 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-12-22 14:35:03,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-12-22 14:35:03,058 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-12-22 14:35:03,059 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-12-22 14:35:03,059 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_abs [2021-12-22 14:35:03,059 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_abs [2021-12-22 14:35:03,059 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2021-12-22 14:35:03,059 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2021-12-22 14:35:03,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-22 14:35:03,068 INFO L130 BoogieDeclarations]: Found specification of procedure input_free_device [2021-12-22 14:35:03,068 INFO L138 BoogieDeclarations]: Found implementation of procedure input_free_device [2021-12-22 14:35:03,068 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_create_group [2021-12-22 14:35:03,068 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_create_group [2021-12-22 14:35:03,069 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-22 14:35:03,069 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_group [2021-12-22 14:35:03,069 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_group [2021-12-22 14:35:03,069 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_int_urb_7 [2021-12-22 14:35:03,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_int_urb_7 [2021-12-22 14:35:03,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-22 14:35:03,069 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-22 14:35:03,069 INFO L130 BoogieDeclarations]: Found specification of procedure lcd_write [2021-12-22 14:35:03,069 INFO L138 BoogieDeclarations]: Found implementation of procedure lcd_write [2021-12-22 14:35:03,069 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-12-22 14:35:03,069 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-12-22 14:35:03,069 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2021-12-22 14:35:03,069 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2021-12-22 14:35:03,069 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-22 14:35:03,069 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-22 14:35:03,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-22 14:35:03,069 INFO L130 BoogieDeclarations]: Found specification of procedure usb_to_input_id [2021-12-22 14:35:03,069 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_to_input_id [2021-12-22 14:35:03,069 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2021-12-22 14:35:03,070 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2021-12-22 14:35:03,070 INFO L130 BoogieDeclarations]: Found specification of procedure noop_llseek [2021-12-22 14:35:03,070 INFO L138 BoogieDeclarations]: Found implementation of procedure noop_llseek [2021-12-22 14:35:03,070 INFO L130 BoogieDeclarations]: Found specification of procedure imon_incoming_packet [2021-12-22 14:35:03,070 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_incoming_packet [2021-12-22 14:35:03,070 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-22 14:35:03,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-22 14:35:03,070 INFO L130 BoogieDeclarations]: Found specification of procedure imon_remote_key_lookup [2021-12-22 14:35:03,070 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_remote_key_lookup [2021-12-22 14:35:03,070 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-22 14:35:03,070 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_1 [2021-12-22 14:35:03,070 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_1 [2021-12-22 14:35:03,070 INFO L130 BoogieDeclarations]: Found specification of procedure tv2int [2021-12-22 14:35:03,070 INFO L138 BoogieDeclarations]: Found implementation of procedure tv2int [2021-12-22 14:35:03,070 INFO L130 BoogieDeclarations]: Found specification of procedure stabilize [2021-12-22 14:35:03,070 INFO L138 BoogieDeclarations]: Found implementation of procedure stabilize [2021-12-22 14:35:03,070 INFO L130 BoogieDeclarations]: Found specification of procedure input_register_device [2021-12-22 14:35:03,070 INFO L138 BoogieDeclarations]: Found implementation of procedure input_register_device [2021-12-22 14:35:03,071 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_6 [2021-12-22 14:35:03,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_6 [2021-12-22 14:35:03,071 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-12-22 14:35:03,071 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-12-22 14:35:03,071 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-22 14:35:03,071 INFO L130 BoogieDeclarations]: Found specification of procedure vfd_write [2021-12-22 14:35:03,071 INFO L138 BoogieDeclarations]: Found implementation of procedure vfd_write [2021-12-22 14:35:03,071 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-22 14:35:03,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-22 14:35:03,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-22 14:35:03,071 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_abs_params [2021-12-22 14:35:03,071 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_abs_params [2021-12-22 14:35:03,071 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-22 14:35:03,071 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_1 [2021-12-22 14:35:03,071 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_1 [2021-12-22 14:35:03,071 INFO L130 BoogieDeclarations]: Found specification of procedure display_close [2021-12-22 14:35:03,071 INFO L138 BoogieDeclarations]: Found implementation of procedure display_close [2021-12-22 14:35:03,071 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-22 14:35:03,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-22 14:35:03,072 INFO L130 BoogieDeclarations]: Found specification of procedure ___ratelimit [2021-12-22 14:35:03,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ___ratelimit [2021-12-22 14:35:03,072 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_dev [2021-12-22 14:35:03,072 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_dev [2021-12-22 14:35:03,072 INFO L130 BoogieDeclarations]: Found specification of procedure input_unregister_device [2021-12-22 14:35:03,072 INFO L138 BoogieDeclarations]: Found implementation of procedure input_unregister_device [2021-12-22 14:35:03,072 INFO L130 BoogieDeclarations]: Found specification of procedure imon_find_endpoints [2021-12-22 14:35:03,072 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_find_endpoints [2021-12-22 14:35:03,072 INFO L130 BoogieDeclarations]: Found specification of procedure display_open [2021-12-22 14:35:03,072 INFO L138 BoogieDeclarations]: Found implementation of procedure display_open [2021-12-22 14:35:03,072 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2021-12-22 14:35:03,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2021-12-22 14:35:03,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-22 14:35:03,072 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2021-12-22 14:35:03,072 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2021-12-22 14:35:03,072 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 14:35:03,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 14:35:03,640 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 14:35:03,648 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 14:35:10,894 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-22 14:35:22,338 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2021-12-22 14:35:24,705 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 14:35:24,727 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 14:35:24,728 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-22 14:35:24,732 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:35:24 BoogieIcfgContainer [2021-12-22 14:35:24,732 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 14:35:24,735 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-22 14:35:24,735 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-22 14:35:24,738 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-22 14:35:24,738 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 02:35:00" (1/3) ... [2021-12-22 14:35:24,739 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b380caa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:35:24, skipping insertion in model container [2021-12-22 14:35:24,739 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:35:02" (2/3) ... [2021-12-22 14:35:24,739 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b380caa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:35:24, skipping insertion in model container [2021-12-22 14:35:24,739 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:35:24" (3/3) ... [2021-12-22 14:35:24,741 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--media--rc--imon.ko-entry_point.cil.out.i [2021-12-22 14:35:24,747 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-22 14:35:24,748 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-22 14:35:24,808 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-22 14:35:24,820 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 [2021-12-22 14:35:24,820 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-22 14:35:24,871 INFO L276 IsEmpty]: Start isEmpty. Operand has 1488 states, 1096 states have (on average 1.3895985401459854) internal successors, (1523), 1127 states have internal predecessors, (1523), 319 states have call successors, (319), 73 states have call predecessors, (319), 71 states have return successors, (310), 305 states have call predecessors, (310), 310 states have call successors, (310) [2021-12-22 14:35:24,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-12-22 14:35:24,923 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:35:24,924 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:35:24,925 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:35:24,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:35:24,929 INFO L85 PathProgramCache]: Analyzing trace with hash 351694781, now seen corresponding path program 1 times [2021-12-22 14:35:24,936 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:35:24,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822865317] [2021-12-22 14:35:24,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:35:24,940 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:35:25,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:35:25,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:35:25,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:35:25,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-22 14:35:25,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:35:25,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 14:35:25,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:35:25,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-22 14:35:25,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:35:25,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-22 14:35:25,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:35:25,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-22 14:35:25,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:35:25,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-22 14:35:25,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:35:25,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-22 14:35:25,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:35:25,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 14:35:25,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:35:25,597 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2021-12-22 14:35:25,598 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:35:25,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822865317] [2021-12-22 14:35:25,599 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822865317] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:35:25,599 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:35:25,599 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-22 14:35:25,600 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325506138] [2021-12-22 14:35:25,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:35:25,621 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-22 14:35:25,621 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:35:25,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-22 14:35:25,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-22 14:35:25,643 INFO L87 Difference]: Start difference. First operand has 1488 states, 1096 states have (on average 1.3895985401459854) internal successors, (1523), 1127 states have internal predecessors, (1523), 319 states have call successors, (319), 73 states have call predecessors, (319), 71 states have return successors, (310), 305 states have call predecessors, (310), 310 states have call successors, (310) Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2021-12-22 14:35:27,846 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:35:29,871 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:35:33,529 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:35:35,856 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:35:39,289 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:35:41,345 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:35:43,463 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:35:45,150 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:35:47,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:35:47,587 INFO L93 Difference]: Finished difference Result 4512 states and 6679 transitions. [2021-12-22 14:35:47,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 14:35:47,589 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 74 [2021-12-22 14:35:47,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:35:47,617 INFO L225 Difference]: With dead ends: 4512 [2021-12-22 14:35:47,617 INFO L226 Difference]: Without dead ends: 2999 [2021-12-22 14:35:47,627 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-22 14:35:47,630 INFO L933 BasicCegarLoop]: 2382 mSDtfsCounter, 2346 mSDsluCounter, 2960 mSDsCounter, 0 mSdLazyCounter, 1183 mSolverCounterSat, 738 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2586 SdHoareTripleChecker+Valid, 5342 SdHoareTripleChecker+Invalid, 1927 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 738 IncrementalHoareTripleChecker+Valid, 1183 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.7s IncrementalHoareTripleChecker+Time [2021-12-22 14:35:47,630 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2586 Valid, 5342 Invalid, 1927 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [738 Valid, 1183 Invalid, 6 Unknown, 0 Unchecked, 21.7s Time] [2021-12-22 14:35:47,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2999 states. [2021-12-22 14:35:47,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2999 to 2875. [2021-12-22 14:35:47,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2875 states, 2137 states have (on average 1.3827795975666823) internal successors, (2955), 2173 states have internal predecessors, (2955), 597 states have call successors, (597), 141 states have call predecessors, (597), 140 states have return successors, (592), 582 states have call predecessors, (592), 592 states have call successors, (592) [2021-12-22 14:35:47,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2875 states to 2875 states and 4144 transitions. [2021-12-22 14:35:47,791 INFO L78 Accepts]: Start accepts. Automaton has 2875 states and 4144 transitions. Word has length 74 [2021-12-22 14:35:47,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:35:47,793 INFO L470 AbstractCegarLoop]: Abstraction has 2875 states and 4144 transitions. [2021-12-22 14:35:47,794 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2021-12-22 14:35:47,797 INFO L276 IsEmpty]: Start isEmpty. Operand 2875 states and 4144 transitions. [2021-12-22 14:35:47,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-12-22 14:35:47,804 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:35:47,804 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:35:47,804 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-22 14:35:47,804 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:35:47,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:35:47,807 INFO L85 PathProgramCache]: Analyzing trace with hash 1853548450, now seen corresponding path program 1 times [2021-12-22 14:35:47,807 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:35:47,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285471083] [2021-12-22 14:35:47,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:35:47,808 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:35:47,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:35:48,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:35:48,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:35:48,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-22 14:35:48,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:35:48,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 14:35:48,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:35:48,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-22 14:35:48,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:35:48,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-22 14:35:48,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:35:48,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-22 14:35:48,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:35:48,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-22 14:35:48,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:35:48,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-22 14:35:48,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:35:48,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 14:35:48,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:35:48,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-22 14:35:48,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:35:48,138 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2021-12-22 14:35:48,139 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:35:48,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285471083] [2021-12-22 14:35:48,139 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285471083] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:35:48,139 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:35:48,140 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-22 14:35:48,140 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974491636] [2021-12-22 14:35:48,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:35:48,141 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-22 14:35:48,141 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:35:48,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-22 14:35:48,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-22 14:35:48,142 INFO L87 Difference]: Start difference. First operand 2875 states and 4144 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2021-12-22 14:35:50,259 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:35:57,563 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:36:00,127 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:36:02,175 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:36:04,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:36:04,163 INFO L93 Difference]: Finished difference Result 8826 states and 13022 transitions. [2021-12-22 14:36:04,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 14:36:04,164 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 83 [2021-12-22 14:36:04,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:36:04,188 INFO L225 Difference]: With dead ends: 8826 [2021-12-22 14:36:04,189 INFO L226 Difference]: Without dead ends: 5974 [2021-12-22 14:36:04,200 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-22 14:36:04,203 INFO L933 BasicCegarLoop]: 2551 mSDtfsCounter, 2375 mSDsluCounter, 2994 mSDsCounter, 0 mSdLazyCounter, 1233 mSolverCounterSat, 714 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2606 SdHoareTripleChecker+Valid, 5545 SdHoareTripleChecker+Invalid, 1951 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 714 IncrementalHoareTripleChecker+Valid, 1233 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.8s IncrementalHoareTripleChecker+Time [2021-12-22 14:36:04,205 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2606 Valid, 5545 Invalid, 1951 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [714 Valid, 1233 Invalid, 4 Unknown, 0 Unchecked, 15.8s Time] [2021-12-22 14:36:04,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5974 states. [2021-12-22 14:36:04,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5974 to 5768. [2021-12-22 14:36:04,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5768 states, 4289 states have (on average 1.3802751224061554) internal successors, (5920), 4359 states have internal predecessors, (5920), 1186 states have call successors, (1186), 281 states have call predecessors, (1186), 292 states have return successors, (1283), 1169 states have call predecessors, (1283), 1181 states have call successors, (1283) [2021-12-22 14:36:04,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5768 states to 5768 states and 8389 transitions. [2021-12-22 14:36:04,361 INFO L78 Accepts]: Start accepts. Automaton has 5768 states and 8389 transitions. Word has length 83 [2021-12-22 14:36:04,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:36:04,363 INFO L470 AbstractCegarLoop]: Abstraction has 5768 states and 8389 transitions. [2021-12-22 14:36:04,363 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2021-12-22 14:36:04,363 INFO L276 IsEmpty]: Start isEmpty. Operand 5768 states and 8389 transitions. [2021-12-22 14:36:04,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-12-22 14:36:04,365 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:36:04,365 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:36:04,366 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-22 14:36:04,366 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:36:04,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:36:04,366 INFO L85 PathProgramCache]: Analyzing trace with hash 1624832766, now seen corresponding path program 1 times [2021-12-22 14:36:04,366 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:36:04,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999219407] [2021-12-22 14:36:04,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:36:04,367 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:36:04,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:36:04,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:36:04,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:36:04,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-22 14:36:04,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:36:04,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 14:36:04,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:36:04,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-22 14:36:04,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:36:04,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-22 14:36:04,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:36:04,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-22 14:36:04,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:36:04,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-22 14:36:04,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:36:04,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-22 14:36:04,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:36:04,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 14:36:04,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:36:04,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-22 14:36:04,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:36:04,640 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2021-12-22 14:36:04,640 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:36:04,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999219407] [2021-12-22 14:36:04,640 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999219407] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:36:04,640 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:36:04,641 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-22 14:36:04,641 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501465477] [2021-12-22 14:36:04,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:36:04,641 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-22 14:36:04,641 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:36:04,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-22 14:36:04,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-22 14:36:04,643 INFO L87 Difference]: Start difference. First operand 5768 states and 8389 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2021-12-22 14:36:08,193 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:36:10,223 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []