./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-media-usb-gspca-gspca_xirlink_cit.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ff03de63 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-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-media-usb-gspca-gspca_xirlink_cit.cil.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 da295a433f96a090e97fd0ee72a58f7ad7a804da074c3950d4e4dc7d412af0ef --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 17:07:57,699 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 17:07:57,702 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 17:07:57,745 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 17:07:57,746 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 17:07:57,749 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 17:07:57,750 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 17:07:57,752 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 17:07:57,754 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 17:07:57,760 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 17:07:57,760 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 17:07:57,762 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 17:07:57,762 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 17:07:57,766 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 17:07:57,767 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 17:07:57,770 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 17:07:57,771 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 17:07:57,771 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 17:07:57,773 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 17:07:57,778 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 17:07:57,779 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 17:07:57,780 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 17:07:57,781 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 17:07:57,782 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 17:07:57,788 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 17:07:57,788 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 17:07:57,788 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 17:07:57,790 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 17:07:57,790 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 17:07:57,791 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 17:07:57,791 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 17:07:57,792 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 17:07:57,793 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 17:07:57,794 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 17:07:57,795 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 17:07:57,795 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 17:07:57,796 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 17:07:57,797 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 17:07:57,797 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 17:07:57,798 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 17:07:57,799 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 17:07:57,800 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-21 17:07:57,834 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 17:07:57,834 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 17:07:57,835 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 17:07:57,835 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 17:07:57,836 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 17:07:57,836 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 17:07:57,836 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 17:07:57,836 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 17:07:57,837 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 17:07:57,837 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 17:07:57,838 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 17:07:57,838 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 17:07:57,843 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 17:07:57,843 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 17:07:57,843 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 17:07:57,844 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 17:07:57,844 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 17:07:57,844 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 17:07:57,844 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 17:07:57,844 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 17:07:57,844 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 17:07:57,845 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 17:07:57,845 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 17:07:57,845 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 17:07:57,845 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 17:07:57,845 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 17:07:57,846 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-21 17:07:57,846 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 17:07:57,846 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 17:07:57,846 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 17:07:57,846 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 17:07:57,846 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> da295a433f96a090e97fd0ee72a58f7ad7a804da074c3950d4e4dc7d412af0ef [2021-12-21 17:07:58,089 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 17:07:58,106 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 17:07:58,109 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 17:07:58,110 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 17:07:58,110 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 17:07:58,111 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-media-usb-gspca-gspca_xirlink_cit.cil.i [2021-12-21 17:07:58,184 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e0454a27/ecc53dc7fa534aa98c311491368834ac/FLAG8f573c87b [2021-12-21 17:07:58,903 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 17:07:58,904 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-media-usb-gspca-gspca_xirlink_cit.cil.i [2021-12-21 17:07:58,947 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e0454a27/ecc53dc7fa534aa98c311491368834ac/FLAG8f573c87b [2021-12-21 17:07:58,970 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e0454a27/ecc53dc7fa534aa98c311491368834ac [2021-12-21 17:07:58,972 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 17:07:58,974 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 17:07:58,976 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 17:07:58,977 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 17:07:58,979 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 17:07:58,980 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 05:07:58" (1/1) ... [2021-12-21 17:07:58,981 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19893bfc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:07:58, skipping insertion in model container [2021-12-21 17:07:58,981 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 05:07:58" (1/1) ... [2021-12-21 17:07:58,986 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 17:07:59,102 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 17:08:00,539 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-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-media-usb-gspca-gspca_xirlink_cit.cil.i[277615,277628] [2021-12-21 17:08:00,542 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-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-media-usb-gspca-gspca_xirlink_cit.cil.i[277762,277775] [2021-12-21 17:08:00,543 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-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-media-usb-gspca-gspca_xirlink_cit.cil.i[277901,277914] [2021-12-21 17:08:00,544 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-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-media-usb-gspca-gspca_xirlink_cit.cil.i[278059,278072] [2021-12-21 17:08:00,552 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 17:08:00,633 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 17:08:00,888 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-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-media-usb-gspca-gspca_xirlink_cit.cil.i[277615,277628] [2021-12-21 17:08:00,889 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-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-media-usb-gspca-gspca_xirlink_cit.cil.i[277762,277775] [2021-12-21 17:08:00,890 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-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-media-usb-gspca-gspca_xirlink_cit.cil.i[277901,277914] [2021-12-21 17:08:00,890 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-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-media-usb-gspca-gspca_xirlink_cit.cil.i[278059,278072] [2021-12-21 17:08:00,894 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 17:08:01,046 INFO L208 MainTranslator]: Completed translation [2021-12-21 17:08:01,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:08:01 WrapperNode [2021-12-21 17:08:01,047 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 17:08:01,047 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 17:08:01,048 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 17:08:01,048 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 17:08:01,065 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:08:01" (1/1) ... [2021-12-21 17:08:01,247 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:08:01" (1/1) ... [2021-12-21 17:08:01,426 INFO L137 Inliner]: procedures = 202, calls = 3694, calls flagged for inlining = 99, calls inlined = 91, statements flattened = 6973 [2021-12-21 17:08:01,426 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 17:08:01,427 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 17:08:01,427 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 17:08:01,427 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 17:08:01,435 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:08:01" (1/1) ... [2021-12-21 17:08:01,435 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:08:01" (1/1) ... [2021-12-21 17:08:01,462 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:08:01" (1/1) ... [2021-12-21 17:08:01,463 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:08:01" (1/1) ... [2021-12-21 17:08:01,584 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:08:01" (1/1) ... [2021-12-21 17:08:01,598 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:08:01" (1/1) ... [2021-12-21 17:08:01,616 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:08:01" (1/1) ... [2021-12-21 17:08:01,653 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 17:08:01,654 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 17:08:01,654 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 17:08:01,656 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 17:08:01,657 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:08:01" (1/1) ... [2021-12-21 17:08:01,663 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 17:08:01,671 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 17:08:01,684 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) [2021-12-21 17:08:01,688 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 [2021-12-21 17:08:01,714 INFO L130 BoogieDeclarations]: Found specification of procedure sd_isoc_init [2021-12-21 17:08:01,714 INFO L138 BoogieDeclarations]: Found implementation of procedure sd_isoc_init [2021-12-21 17:08:01,714 INFO L130 BoogieDeclarations]: Found specification of procedure cit_check_button [2021-12-21 17:08:01,715 INFO L138 BoogieDeclarations]: Found implementation of procedure cit_check_button [2021-12-21 17:08:01,715 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-21 17:08:01,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-21 17:08:01,715 INFO L130 BoogieDeclarations]: Found specification of procedure cit_send_x_01_00_05 [2021-12-21 17:08:01,715 INFO L138 BoogieDeclarations]: Found implementation of procedure cit_send_x_01_00_05 [2021-12-21 17:08:01,715 INFO L130 BoogieDeclarations]: Found specification of procedure cit_send_x_00_05 [2021-12-21 17:08:01,715 INFO L138 BoogieDeclarations]: Found implementation of procedure cit_send_x_00_05 [2021-12-21 17:08:01,716 INFO L130 BoogieDeclarations]: Found specification of procedure cit_PacketFormat2 [2021-12-21 17:08:01,716 INFO L138 BoogieDeclarations]: Found implementation of procedure cit_PacketFormat2 [2021-12-21 17:08:01,716 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-21 17:08:01,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-21 17:08:01,716 INFO L130 BoogieDeclarations]: Found specification of procedure sd_start [2021-12-21 17:08:01,716 INFO L138 BoogieDeclarations]: Found implementation of procedure sd_start [2021-12-21 17:08:01,716 INFO L130 BoogieDeclarations]: Found specification of procedure cit_send_x_00 [2021-12-21 17:08:01,717 INFO L138 BoogieDeclarations]: Found implementation of procedure cit_send_x_00 [2021-12-21 17:08:01,717 INFO L130 BoogieDeclarations]: Found specification of procedure sd_isoc_nego [2021-12-21 17:08:01,717 INFO L138 BoogieDeclarations]: Found implementation of procedure sd_isoc_nego [2021-12-21 17:08:01,717 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_frame_add [2021-12-21 17:08:01,717 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_frame_add [2021-12-21 17:08:01,717 INFO L130 BoogieDeclarations]: Found specification of procedure cit_model2_Packet1 [2021-12-21 17:08:01,717 INFO L138 BoogieDeclarations]: Found implementation of procedure cit_model2_Packet1 [2021-12-21 17:08:01,717 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-21 17:08:01,718 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2021-12-21 17:08:01,718 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2021-12-21 17:08:01,718 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-21 17:08:01,718 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-21 17:08:01,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-12-21 17:08:01,718 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_new_std [2021-12-21 17:08:01,718 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_new_std [2021-12-21 17:08:01,719 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-21 17:08:01,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-21 17:08:01,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-21 17:08:01,719 INFO L130 BoogieDeclarations]: Found specification of procedure cit_read_reg [2021-12-21 17:08:01,719 INFO L138 BoogieDeclarations]: Found implementation of procedure cit_read_reg [2021-12-21 17:08:01,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-21 17:08:01,719 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-12-21 17:08:01,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-12-21 17:08:01,720 INFO L130 BoogieDeclarations]: Found specification of procedure cit_get_packet_size [2021-12-21 17:08:01,720 INFO L138 BoogieDeclarations]: Found implementation of procedure cit_get_packet_size [2021-12-21 17:08:01,720 INFO L130 BoogieDeclarations]: Found specification of procedure usb_clear_halt [2021-12-21 17:08:01,720 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_clear_halt [2021-12-21 17:08:01,720 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_key [2021-12-21 17:08:01,720 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_key [2021-12-21 17:08:01,720 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-12-21 17:08:01,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-12-21 17:08:01,721 INFO L130 BoogieDeclarations]: Found specification of procedure cit_model4_Packet1 [2021-12-21 17:08:01,721 INFO L138 BoogieDeclarations]: Found implementation of procedure cit_model4_Packet1 [2021-12-21 17:08:01,721 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_grab [2021-12-21 17:08:01,721 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_grab [2021-12-21 17:08:01,721 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-21 17:08:01,721 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_instance_release_2_4 [2021-12-21 17:08:01,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_instance_release_2_4 [2021-12-21 17:08:01,722 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-12-21 17:08:01,722 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-12-21 17:08:01,722 INFO L130 BoogieDeclarations]: Found specification of procedure sd_init [2021-12-21 17:08:01,722 INFO L138 BoogieDeclarations]: Found implementation of procedure sd_init [2021-12-21 17:08:01,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-21 17:08:01,722 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_sd_driver_exit_6_2 [2021-12-21 17:08:01,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_sd_driver_exit_6_2 [2021-12-21 17:08:01,723 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2021-12-21 17:08:01,723 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2021-12-21 17:08:01,723 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_disconnect [2021-12-21 17:08:01,723 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_disconnect [2021-12-21 17:08:01,723 INFO L130 BoogieDeclarations]: Found specification of procedure cit_restart_stream [2021-12-21 17:08:01,723 INFO L138 BoogieDeclarations]: Found implementation of procedure cit_restart_stream [2021-12-21 17:08:01,724 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-21 17:08:01,724 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_resume [2021-12-21 17:08:01,724 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_resume [2021-12-21 17:08:01,724 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-12-21 17:08:01,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-12-21 17:08:01,724 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 17:08:01,724 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-21 17:08:01,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-21 17:08:01,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-21 17:08:01,725 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-21 17:08:01,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-21 17:08:01,725 INFO L130 BoogieDeclarations]: Found specification of procedure cit_write_reg [2021-12-21 17:08:01,725 INFO L138 BoogieDeclarations]: Found implementation of procedure cit_write_reg [2021-12-21 17:08:01,725 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2021-12-21 17:08:01,725 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2021-12-21 17:08:01,726 INFO L130 BoogieDeclarations]: Found specification of procedure sd_stopN [2021-12-21 17:08:01,726 INFO L138 BoogieDeclarations]: Found implementation of procedure sd_stopN [2021-12-21 17:08:01,726 INFO L130 BoogieDeclarations]: Found specification of procedure sd_s_ctrl [2021-12-21 17:08:01,726 INFO L138 BoogieDeclarations]: Found implementation of procedure sd_s_ctrl [2021-12-21 17:08:01,726 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_g_ctrl [2021-12-21 17:08:01,726 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_g_ctrl [2021-12-21 17:08:01,726 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-12-21 17:08:01,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-12-21 17:08:01,727 INFO L130 BoogieDeclarations]: Found specification of procedure sd_stop0 [2021-12-21 17:08:01,727 INFO L138 BoogieDeclarations]: Found implementation of procedure sd_stop0 [2021-12-21 17:08:01,727 INFO L130 BoogieDeclarations]: Found specification of procedure cit_get_clock_div [2021-12-21 17:08:01,727 INFO L138 BoogieDeclarations]: Found implementation of procedure cit_get_clock_div [2021-12-21 17:08:01,727 INFO L130 BoogieDeclarations]: Found specification of procedure cit_model3_Packet1 [2021-12-21 17:08:01,727 INFO L138 BoogieDeclarations]: Found implementation of procedure cit_model3_Packet1 [2021-12-21 17:08:01,727 INFO L130 BoogieDeclarations]: Found specification of procedure cit_Packet_Format1 [2021-12-21 17:08:01,728 INFO L138 BoogieDeclarations]: Found implementation of procedure cit_Packet_Format1 [2021-12-21 17:08:01,728 INFO L130 BoogieDeclarations]: Found specification of procedure sd_init_controls [2021-12-21 17:08:01,728 INFO L138 BoogieDeclarations]: Found implementation of procedure sd_init_controls [2021-12-21 17:08:01,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 17:08:01,728 INFO L130 BoogieDeclarations]: Found specification of procedure cit_send_FF_04_02 [2021-12-21 17:08:01,728 INFO L138 BoogieDeclarations]: Found implementation of procedure cit_send_FF_04_02 [2021-12-21 17:08:01,728 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-12-21 17:08:01,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-12-21 17:08:01,729 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 17:08:01,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 17:08:02,258 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 17:08:02,260 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 17:08:02,373 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-21 17:08:09,034 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-12-21 17:08:09,159 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 17:08:09,178 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 17:08:09,178 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-21 17:08:09,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 05:08:09 BoogieIcfgContainer [2021-12-21 17:08:09,184 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 17:08:09,187 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-21 17:08:09,188 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-21 17:08:09,191 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-21 17:08:09,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 05:07:58" (1/3) ... [2021-12-21 17:08:09,192 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e82e978 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 05:08:09, skipping insertion in model container [2021-12-21 17:08:09,197 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:08:01" (2/3) ... [2021-12-21 17:08:09,198 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e82e978 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 05:08:09, skipping insertion in model container [2021-12-21 17:08:09,198 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 05:08:09" (3/3) ... [2021-12-21 17:08:09,199 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-usb-dev_drivers-media-usb-gspca-gspca_xirlink_cit.cil.i [2021-12-21 17:08:09,204 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-21 17:08:09,204 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-12-21 17:08:09,261 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 17:08:09,267 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 [2021-12-21 17:08:09,267 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-12-21 17:08:09,376 INFO L276 IsEmpty]: Start isEmpty. Operand has 2725 states, 1463 states have (on average 1.21120984278879) internal successors, (1772), 1480 states have internal predecessors, (1772), 1213 states have call successors, (1213), 48 states have call predecessors, (1213), 47 states have return successors, (1207), 1200 states have call predecessors, (1207), 1207 states have call successors, (1207) [2021-12-21 17:08:09,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-12-21 17:08:09,396 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:08:09,397 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 17:08:09,397 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 17:08:09,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:08:09,403 INFO L85 PathProgramCache]: Analyzing trace with hash -755739248, now seen corresponding path program 1 times [2021-12-21 17:08:09,410 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:08:09,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811473366] [2021-12-21 17:08:09,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:08:09,413 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:08:09,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:08:10,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 17:08:10,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:08:10,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:08:10,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:08:10,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 17:08:10,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:08:10,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:08:10,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:08:10,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 17:08:10,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:08:10,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:08:10,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:08:10,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 17:08:10,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:08:10,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:08:10,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:08:10,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:08:10,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:08:10,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:08:10,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:08:10,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 17:08:10,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:08:10,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:08:10,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:08:10,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-21 17:08:10,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:08:10,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:08:10,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:08:10,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 17:08:10,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:08:10,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:08:10,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:08:10,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-21 17:08:10,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:08:10,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-21 17:08:10,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:08:10,259 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2021-12-21 17:08:10,260 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:08:10,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811473366] [2021-12-21 17:08:10,261 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811473366] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:08:10,261 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:08:10,261 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 17:08:10,263 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114736154] [2021-12-21 17:08:10,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:08:10,267 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 17:08:10,267 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:08:10,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 17:08:10,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-21 17:08:10,301 INFO L87 Difference]: Start difference. First operand has 2725 states, 1463 states have (on average 1.21120984278879) internal successors, (1772), 1480 states have internal predecessors, (1772), 1213 states have call successors, (1213), 48 states have call predecessors, (1213), 47 states have return successors, (1207), 1200 states have call predecessors, (1207), 1207 states have call successors, (1207) Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2021-12-21 17:08:22,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:08:22,499 INFO L93 Difference]: Finished difference Result 10035 states and 15555 transitions. [2021-12-21 17:08:22,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 17:08:22,511 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 117 [2021-12-21 17:08:22,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:08:22,608 INFO L225 Difference]: With dead ends: 10035 [2021-12-21 17:08:22,609 INFO L226 Difference]: Without dead ends: 7320 [2021-12-21 17:08:22,648 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-21 17:08:22,651 INFO L933 BasicCegarLoop]: 4881 mSDtfsCounter, 4875 mSDsluCounter, 4977 mSDsCounter, 0 mSdLazyCounter, 4749 mSolverCounterSat, 5702 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6561 SdHoareTripleChecker+Valid, 9858 SdHoareTripleChecker+Invalid, 10451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 5702 IncrementalHoareTripleChecker+Valid, 4749 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.4s IncrementalHoareTripleChecker+Time [2021-12-21 17:08:22,653 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6561 Valid, 9858 Invalid, 10451 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [5702 Valid, 4749 Invalid, 0 Unknown, 0 Unchecked, 11.4s Time] [2021-12-21 17:08:22,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7320 states. [2021-12-21 17:08:24,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7320 to 5272. [2021-12-21 17:08:24,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5272 states, 2815 states have (on average 1.2031971580817051) internal successors, (3387), 2846 states have internal predecessors, (3387), 2364 states have call successors, (2364), 92 states have call predecessors, (2364), 91 states have return successors, (2361), 2347 states have call predecessors, (2361), 2361 states have call successors, (2361) [2021-12-21 17:08:24,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5272 states to 5272 states and 8112 transitions. [2021-12-21 17:08:24,103 INFO L78 Accepts]: Start accepts. Automaton has 5272 states and 8112 transitions. Word has length 117 [2021-12-21 17:08:24,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:08:24,105 INFO L470 AbstractCegarLoop]: Abstraction has 5272 states and 8112 transitions. [2021-12-21 17:08:24,105 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2021-12-21 17:08:24,106 INFO L276 IsEmpty]: Start isEmpty. Operand 5272 states and 8112 transitions. [2021-12-21 17:08:24,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2021-12-21 17:08:24,121 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:08:24,121 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 17:08:24,122 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-21 17:08:24,122 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 17:08:24,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:08:24,123 INFO L85 PathProgramCache]: Analyzing trace with hash 201776202, now seen corresponding path program 1 times [2021-12-21 17:08:24,123 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:08:24,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985453256] [2021-12-21 17:08:24,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:08:24,124 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:08:24,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:08:24,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 17:08:24,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:08:24,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:08:24,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:08:24,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 17:08:24,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:08:24,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:08:24,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:08:24,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 17:08:24,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:08:24,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:08:24,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:08:24,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 17:08:24,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:08:24,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:08:24,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:08:24,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:08:24,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:08:24,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:08:24,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:08:24,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 17:08:24,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:08:24,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:08:24,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:08:24,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-21 17:08:24,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:08:24,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:08:24,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:08:24,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 17:08:24,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:08:24,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:08:24,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:08:24,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-21 17:08:24,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:08:24,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-21 17:08:24,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:08:24,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:08:24,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:08:24,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 17:08:24,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:08:24,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-21 17:08:24,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:08:24,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-21 17:08:24,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:08:24,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:08:24,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:08:24,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 17:08:24,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:08:24,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-21 17:08:24,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:08:24,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-21 17:08:24,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:08:24,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:08:24,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:08:24,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 17:08:24,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:08:24,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-21 17:08:24,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:08:24,744 INFO L134 CoverageAnalysis]: Checked inductivity of 369 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 369 trivial. 0 not checked. [2021-12-21 17:08:24,745 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:08:24,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985453256] [2021-12-21 17:08:24,745 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985453256] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:08:24,745 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:08:24,745 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 17:08:24,746 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464795829] [2021-12-21 17:08:24,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:08:24,747 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 17:08:24,747 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:08:24,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 17:08:24,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-21 17:08:24,748 INFO L87 Difference]: Start difference. First operand 5272 states and 8112 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-12-21 17:08:36,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:08:36,864 INFO L93 Difference]: Finished difference Result 19591 states and 30348 transitions. [2021-12-21 17:08:36,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 17:08:36,865 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 185 [2021-12-21 17:08:36,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:08:36,960 INFO L225 Difference]: With dead ends: 19591 [2021-12-21 17:08:36,961 INFO L226 Difference]: Without dead ends: 14340 [2021-12-21 17:08:37,009 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-21 17:08:37,010 INFO L933 BasicCegarLoop]: 4878 mSDtfsCounter, 4705 mSDsluCounter, 4942 mSDsCounter, 0 mSdLazyCounter, 4750 mSolverCounterSat, 5661 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6391 SdHoareTripleChecker+Valid, 9820 SdHoareTripleChecker+Invalid, 10411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5661 IncrementalHoareTripleChecker+Valid, 4750 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.1s IncrementalHoareTripleChecker+Time [2021-12-21 17:08:37,011 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6391 Valid, 9820 Invalid, 10411 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5661 Valid, 4750 Invalid, 0 Unknown, 0 Unchecked, 11.1s Time] [2021-12-21 17:08:37,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14340 states. [2021-12-21 17:08:39,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14340 to 10247. [2021-12-21 17:08:39,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10247 states, 5418 states have (on average 1.1982281284606866) internal successors, (6492), 5484 states have internal predecessors, (6492), 4654 states have call successors, (4654), 174 states have call predecessors, (4654), 173 states have return successors, (4651), 4616 states have call predecessors, (4651), 4651 states have call successors, (4651) [2021-12-21 17:08:39,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10247 states to 10247 states and 15797 transitions. [2021-12-21 17:08:39,717 INFO L78 Accepts]: Start accepts. Automaton has 10247 states and 15797 transitions. Word has length 185 [2021-12-21 17:08:39,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:08:39,718 INFO L470 AbstractCegarLoop]: Abstraction has 10247 states and 15797 transitions. [2021-12-21 17:08:39,719 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-12-21 17:08:39,719 INFO L276 IsEmpty]: Start isEmpty. Operand 10247 states and 15797 transitions. [2021-12-21 17:08:39,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2021-12-21 17:08:39,729 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:08:39,729 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 17:08:39,730 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-21 17:08:39,730 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 17:08:39,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:08:39,730 INFO L85 PathProgramCache]: Analyzing trace with hash 1255827173, now seen corresponding path program 1 times [2021-12-21 17:08:39,731 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:08:39,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980723833] [2021-12-21 17:08:39,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:08:39,731 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:08:39,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:08:40,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 17:08:40,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:08:40,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:08:40,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:08:40,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 17:08:40,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:08:40,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:08:40,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:08:40,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 17:08:40,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:08:40,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:08:40,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:08:40,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 17:08:40,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:08:40,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:08:40,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:08:40,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:08:40,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:08:40,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:08:40,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:08:40,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 17:08:40,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:08:40,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:08:40,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:08:40,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-21 17:08:40,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:08:40,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:08:40,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:08:40,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 17:08:40,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:08:40,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:08:40,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:08:40,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-21 17:08:40,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:08:40,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-21 17:08:40,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:08:40,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-21 17:08:40,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:08:40,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-21 17:08:40,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:08:40,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-21 17:08:40,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:08:40,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:08:40,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:08:40,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-21 17:08:40,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:08:40,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-21 17:08:40,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:08:40,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-12-21 17:08:40,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:08:40,354 INFO L134 CoverageAnalysis]: Checked inductivity of 402 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 390 trivial. 0 not checked. [2021-12-21 17:08:40,355 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:08:40,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980723833] [2021-12-21 17:08:40,355 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980723833] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:08:40,355 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:08:40,356 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 17:08:40,356 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176299639] [2021-12-21 17:08:40,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:08:40,356 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 17:08:40,357 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:08:40,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 17:08:40,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-21 17:08:40,358 INFO L87 Difference]: Start difference. First operand 10247 states and 15797 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18)