./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--mediatek--mt7601u--mt7601u.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cfc371d-2442-40a3-92b0-279ba12386cc/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cfc371d-2442-40a3-92b0-279ba12386cc/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cfc371d-2442-40a3-92b0-279ba12386cc/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cfc371d-2442-40a3-92b0-279ba12386cc/bin/uautomizer-YU5uOKAj3y/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--mediatek--mt7601u--mt7601u.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cfc371d-2442-40a3-92b0-279ba12386cc/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cfc371d-2442-40a3-92b0-279ba12386cc/bin/uautomizer-YU5uOKAj3y --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 9f23cfa62b71a2e5a51fffc3a30328961f014d6aa87a85f8537d47b2cd2ac62e --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 18:31:42,759 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 18:31:42,762 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 18:31:42,810 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 18:31:42,811 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 18:31:42,813 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 18:31:42,815 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 18:31:42,818 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 18:31:42,821 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 18:31:42,822 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 18:31:42,824 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 18:31:42,826 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 18:31:42,827 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 18:31:42,828 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 18:31:42,830 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 18:31:42,832 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 18:31:42,834 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 18:31:42,835 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 18:31:42,838 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 18:31:42,841 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 18:31:42,843 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 18:31:42,845 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 18:31:42,847 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 18:31:42,848 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 18:31:42,853 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 18:31:42,854 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 18:31:42,854 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 18:31:42,856 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 18:31:42,857 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 18:31:42,858 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 18:31:42,859 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 18:31:42,860 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 18:31:42,861 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 18:31:42,863 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 18:31:42,864 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 18:31:42,865 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 18:31:42,866 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 18:31:42,867 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 18:31:42,867 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 18:31:42,869 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 18:31:42,870 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 18:31:42,871 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cfc371d-2442-40a3-92b0-279ba12386cc/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-13 18:31:42,907 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 18:31:42,908 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 18:31:42,908 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 18:31:42,908 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 18:31:42,909 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 18:31:42,910 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 18:31:42,910 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 18:31:42,911 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 18:31:42,911 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 18:31:42,911 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 18:31:42,912 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 18:31:42,912 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 18:31:42,912 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 18:31:42,912 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 18:31:42,913 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 18:31:42,913 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 18:31:42,913 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 18:31:42,913 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 18:31:42,914 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 18:31:42,914 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 18:31:42,914 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 18:31:42,914 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 18:31:42,915 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 18:31:42,915 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 18:31:42,915 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 18:31:42,915 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-13 18:31:42,916 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 18:31:42,916 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-13 18:31:42,916 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-13 18:31:42,916 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 18:31:42,917 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 18:31:42,917 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cfc371d-2442-40a3-92b0-279ba12386cc/bin/uautomizer-YU5uOKAj3y/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cfc371d-2442-40a3-92b0-279ba12386cc/bin/uautomizer-YU5uOKAj3y Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9f23cfa62b71a2e5a51fffc3a30328961f014d6aa87a85f8537d47b2cd2ac62e [2021-11-13 18:31:43,194 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 18:31:43,219 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 18:31:43,223 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 18:31:43,224 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 18:31:43,225 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 18:31:43,226 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cfc371d-2442-40a3-92b0-279ba12386cc/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--mediatek--mt7601u--mt7601u.ko-entry_point.cil.out.i [2021-11-13 18:31:43,326 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cfc371d-2442-40a3-92b0-279ba12386cc/bin/uautomizer-YU5uOKAj3y/data/bd21f45b2/80275286e5774b748c16b6bf5abba995/FLAGb527efd53 [2021-11-13 18:31:44,824 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 18:31:44,825 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cfc371d-2442-40a3-92b0-279ba12386cc/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--mediatek--mt7601u--mt7601u.ko-entry_point.cil.out.i [2021-11-13 18:31:44,933 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cfc371d-2442-40a3-92b0-279ba12386cc/bin/uautomizer-YU5uOKAj3y/data/bd21f45b2/80275286e5774b748c16b6bf5abba995/FLAGb527efd53 [2021-11-13 18:31:45,252 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cfc371d-2442-40a3-92b0-279ba12386cc/bin/uautomizer-YU5uOKAj3y/data/bd21f45b2/80275286e5774b748c16b6bf5abba995 [2021-11-13 18:31:45,255 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 18:31:45,257 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 18:31:45,261 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 18:31:45,261 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 18:31:45,265 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 18:31:45,266 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:31:45" (1/1) ... [2021-11-13 18:31:45,269 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ebc887b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:31:45, skipping insertion in model container [2021-11-13 18:31:45,270 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:31:45" (1/1) ... [2021-11-13 18:31:45,279 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 18:31:45,586 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 18:31:58,089 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cfc371d-2442-40a3-92b0-279ba12386cc/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--mediatek--mt7601u--mt7601u.ko-entry_point.cil.out.i[766015,766028] [2021-11-13 18:31:59,035 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:31:59,157 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 18:32:00,180 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cfc371d-2442-40a3-92b0-279ba12386cc/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--mediatek--mt7601u--mt7601u.ko-entry_point.cil.out.i[766015,766028] [2021-11-13 18:32:00,208 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:32:00,986 INFO L208 MainTranslator]: Completed translation [2021-11-13 18:32:00,989 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:32:00 WrapperNode [2021-11-13 18:32:00,989 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 18:32:00,991 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 18:32:00,991 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 18:32:00,991 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 18:32:01,001 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:32:00" (1/1) ... [2021-11-13 18:32:01,359 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:32:00" (1/1) ... [2021-11-13 18:32:02,384 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 18:32:02,386 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 18:32:02,386 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 18:32:02,386 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 18:32:02,396 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:32:00" (1/1) ... [2021-11-13 18:32:02,411 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:32:00" (1/1) ... [2021-11-13 18:32:02,628 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:32:00" (1/1) ... [2021-11-13 18:32:02,630 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:32:00" (1/1) ... [2021-11-13 18:32:03,091 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:32:00" (1/1) ... [2021-11-13 18:32:03,163 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:32:00" (1/1) ... [2021-11-13 18:32:03,664 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:32:00" (1/1) ... [2021-11-13 18:32:03,796 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 18:32:03,798 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 18:32:03,798 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 18:32:03,798 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 18:32:03,802 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:32:00" (1/1) ... [2021-11-13 18:32:03,812 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 18:32:03,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cfc371d-2442-40a3-92b0-279ba12386cc/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:32:03,849 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cfc371d-2442-40a3-92b0-279ba12386cc/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 18:32:03,873 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cfc371d-2442-40a3-92b0-279ba12386cc/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 18:32:03,915 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2021-11-13 18:32:03,916 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2021-11-13 18:32:03,916 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2021-11-13 18:32:03,917 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2021-11-13 18:32:03,917 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_lockdep_current_cpu_online [2021-11-13 18:32:03,917 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_lockdep_current_cpu_online [2021-11-13 18:32:03,917 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_free_txskb [2021-11-13 18:32:03,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_free_txskb [2021-11-13 18:32:03,918 INFO L130 BoogieDeclarations]: Found specification of procedure s6_to_int [2021-11-13 18:32:03,918 INFO L138 BoogieDeclarations]: Found implementation of procedure s6_to_int [2021-11-13 18:32:03,918 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_urb_has_error [2021-11-13 18:32:03,918 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_urb_has_error [2021-11-13 18:32:03,919 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pad [2021-11-13 18:32:03,919 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pad [2021-11-13 18:32:03,919 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~~u8~0~X~~u8~0~X~~u8~0~TO~VOID [2021-11-13 18:32:03,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~~u8~0~X~~u8~0~X~~u8~0~TO~VOID [2021-11-13 18:32:03,920 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_mac_set_ampdu_factor [2021-11-13 18:32:03,920 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_mac_set_ampdu_factor [2021-11-13 18:32:03,920 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_vendor_req_mutex_of_mt7601u_dev [2021-11-13 18:32:03,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_vendor_req_mutex_of_mt7601u_dev [2021-11-13 18:32:03,920 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-13 18:32:03,921 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-13 18:32:03,921 INFO L130 BoogieDeclarations]: Found specification of procedure mt76_clear [2021-11-13 18:32:03,921 INFO L138 BoogieDeclarations]: Found implementation of procedure mt76_clear [2021-11-13 18:32:03,921 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_mt7601u_mcu [2021-11-13 18:32:03,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_mt7601u_mcu [2021-11-13 18:32:03,922 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_hw_atomic_mutex_of_mt7601u_dev [2021-11-13 18:32:03,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_hw_atomic_mutex_of_mt7601u_dev [2021-11-13 18:32:03,922 INFO L130 BoogieDeclarations]: Found specification of procedure mt76_rmw [2021-11-13 18:32:03,922 INFO L138 BoogieDeclarations]: Found implementation of procedure mt76_rmw [2021-11-13 18:32:03,923 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_lock_release [2021-11-13 18:32:03,923 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_lock_release [2021-11-13 18:32:03,923 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_rf_rmw [2021-11-13 18:32:03,923 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_rf_rmw [2021-11-13 18:32:03,924 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_reg_atomic_mutex_of_mt7601u_dev [2021-11-13 18:32:03,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_reg_atomic_mutex_of_mt7601u_dev [2021-11-13 18:32:03,925 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~~u8~0~TO~VOID [2021-11-13 18:32:03,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~~u8~0~TO~VOID [2021-11-13 18:32:03,925 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2021-11-13 18:32:03,925 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2021-11-13 18:32:03,926 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-13 18:32:03,926 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-13 18:32:03,926 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_set_bw_filter [2021-11-13 18:32:03,926 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_set_bw_filter [2021-11-13 18:32:03,927 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_bbp_rmc [2021-11-13 18:32:03,927 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_bbp_rmc [2021-11-13 18:32:03,927 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-13 18:32:03,927 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-13 18:32:03,928 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_bbp_rmw [2021-11-13 18:32:03,928 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_bbp_rmw [2021-11-13 18:32:03,928 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock_sched_notrace___1 [2021-11-13 18:32:03,929 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock_sched_notrace___1 [2021-11-13 18:32:03,929 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_queue_delayed_work [2021-11-13 18:32:03,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_queue_delayed_work [2021-11-13 18:32:03,929 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock_sched_notrace___2 [2021-11-13 18:32:03,930 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock_sched_notrace___2 [2021-11-13 18:32:03,930 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_sta_add [2021-11-13 18:32:03,930 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_sta_add [2021-11-13 18:32:03,932 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2021-11-13 18:32:03,932 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2021-11-13 18:32:03,933 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_vendor_single_wr [2021-11-13 18:32:03,933 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_vendor_single_wr [2021-11-13 18:32:03,933 INFO L130 BoogieDeclarations]: Found specification of procedure trace_event_raw_init [2021-11-13 18:32:03,933 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_event_raw_init [2021-11-13 18:32:03,933 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_set_rts_threshold [2021-11-13 18:32:03,934 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_set_rts_threshold [2021-11-13 18:32:03,934 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-13 18:32:03,934 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2021-11-13 18:32:03,935 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2021-11-13 18:32:03,935 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_vendor_req_mutex_of_mt7601u_dev [2021-11-13 18:32:03,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_vendor_req_mutex_of_mt7601u_dev [2021-11-13 18:32:03,936 INFO L130 BoogieDeclarations]: Found specification of procedure ether_addr_copy [2021-11-13 18:32:03,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_addr_copy [2021-11-13 18:32:03,936 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_config [2021-11-13 18:32:03,936 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_config [2021-11-13 18:32:03,936 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_bbp_rr [2021-11-13 18:32:03,937 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_bbp_rr [2021-11-13 18:32:03,937 INFO L130 BoogieDeclarations]: Found specification of procedure mt76_rr [2021-11-13 18:32:03,937 INFO L138 BoogieDeclarations]: Found implementation of procedure mt76_rr [2021-11-13 18:32:03,938 INFO L130 BoogieDeclarations]: Found specification of procedure s6_validate [2021-11-13 18:32:03,938 INFO L138 BoogieDeclarations]: Found implementation of procedure s6_validate [2021-11-13 18:32:03,938 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-11-13 18:32:03,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-11-13 18:32:03,938 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_usb_free_buf [2021-11-13 18:32:03,939 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_usb_free_buf [2021-11-13 18:32:03,939 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-13 18:32:03,939 INFO L130 BoogieDeclarations]: Found specification of procedure field_valid [2021-11-13 18:32:03,939 INFO L138 BoogieDeclarations]: Found implementation of procedure field_valid [2021-11-13 18:32:03,940 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-13 18:32:03,940 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-13 18:32:03,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-13 18:32:03,941 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-13 18:32:03,941 INFO L130 BoogieDeclarations]: Found specification of procedure q2hwq [2021-11-13 18:32:03,941 INFO L138 BoogieDeclarations]: Found implementation of procedure q2hwq [2021-11-13 18:32:03,942 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_notrace [2021-11-13 18:32:03,942 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_notrace [2021-11-13 18:32:03,942 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work___0 [2021-11-13 18:32:03,943 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work___0 [2021-11-13 18:32:03,943 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2021-11-13 18:32:03,944 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2021-11-13 18:32:03,944 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kzalloc [2021-11-13 18:32:03,945 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kzalloc [2021-11-13 18:32:03,945 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-13 18:32:03,946 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-13 18:32:03,946 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_u32 [2021-11-13 18:32:03,946 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_u32 [2021-11-13 18:32:03,946 INFO L130 BoogieDeclarations]: Found specification of procedure int_to_s6 [2021-11-13 18:32:03,946 INFO L138 BoogieDeclarations]: Found implementation of procedure int_to_s6 [2021-11-13 18:32:03,947 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_agc_default [2021-11-13 18:32:03,947 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_agc_default [2021-11-13 18:32:03,947 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_dma_cleanup [2021-11-13 18:32:03,947 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_dma_cleanup [2021-11-13 18:32:03,947 INFO L130 BoogieDeclarations]: Found specification of procedure lock_is_held [2021-11-13 18:32:03,948 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_is_held [2021-11-13 18:32:03,948 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_bbp_wr [2021-11-13 18:32:03,948 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_bbp_wr [2021-11-13 18:32:03,949 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_mt7601u_dev [2021-11-13 18:32:03,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_mt7601u_dev [2021-11-13 18:32:03,950 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-13 18:32:03,950 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-13 18:32:03,953 INFO L130 BoogieDeclarations]: Found specification of procedure mt76_wr [2021-11-13 18:32:03,954 INFO L138 BoogieDeclarations]: Found implementation of procedure mt76_wr [2021-11-13 18:32:03,954 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2021-11-13 18:32:03,954 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2021-11-13 18:32:03,955 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 18:32:03,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 18:32:03,958 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-13 18:32:03,958 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-13 18:32:03,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-13 18:32:03,964 INFO L130 BoogieDeclarations]: Found specification of procedure trace_event_reg [2021-11-13 18:32:03,965 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_event_reg [2021-11-13 18:32:03,965 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2021-11-13 18:32:03,965 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2021-11-13 18:32:03,965 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_hw_atomic_mutex_of_mt7601u_dev [2021-11-13 18:32:03,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_hw_atomic_mutex_of_mt7601u_dev [2021-11-13 18:32:03,966 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion_timeout [2021-11-13 18:32:03,966 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion_timeout [2021-11-13 18:32:03,966 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2021-11-13 18:32:03,966 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2021-11-13 18:32:03,966 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-13 18:32:03,967 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_usb_alloc_buf [2021-11-13 18:32:03,967 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_usb_alloc_buf [2021-11-13 18:32:03,967 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kmalloc [2021-11-13 18:32:03,967 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kmalloc [2021-11-13 18:32:03,967 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-13 18:32:03,968 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-13 18:32:03,968 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2021-11-13 18:32:03,968 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2021-11-13 18:32:03,968 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-13 18:32:03,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-13 18:32:03,969 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2021-11-13 18:32:03,969 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2021-11-13 18:32:03,969 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-13 18:32:03,969 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-13 18:32:03,969 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_init_hardware [2021-11-13 18:32:03,970 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_init_hardware [2021-11-13 18:32:03,970 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-11-13 18:32:03,970 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-11-13 18:32:03,970 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_submit_rx_buf [2021-11-13 18:32:03,970 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_submit_rx_buf [2021-11-13 18:32:03,971 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_held [2021-11-13 18:32:03,971 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_held [2021-11-13 18:32:03,971 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~~u32~0~X~~u32~0~TO~VOID [2021-11-13 18:32:03,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~~u32~0~X~~u32~0~TO~VOID [2021-11-13 18:32:03,972 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 18:32:03,972 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-13 18:32:03,973 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-13 18:32:03,973 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2021-11-13 18:32:03,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2021-11-13 18:32:03,973 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-13 18:32:03,973 INFO L130 BoogieDeclarations]: Found specification of procedure simple_attr_write [2021-11-13 18:32:03,974 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_attr_write [2021-11-13 18:32:03,974 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_remove_interface [2021-11-13 18:32:03,974 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_remove_interface [2021-11-13 18:32:03,974 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_2 [2021-11-13 18:32:03,974 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_2 [2021-11-13 18:32:03,974 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_2 [2021-11-13 18:32:03,975 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_2 [2021-11-13 18:32:03,975 INFO L130 BoogieDeclarations]: Found specification of procedure trace_read_temp [2021-11-13 18:32:03,975 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_read_temp [2021-11-13 18:32:03,975 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_mcu_cmd_deinit [2021-11-13 18:32:03,975 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_mcu_cmd_deinit [2021-11-13 18:32:03,976 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2021-11-13 18:32:03,976 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2021-11-13 18:32:03,976 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2021-11-13 18:32:03,976 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2021-11-13 18:32:03,976 INFO L130 BoogieDeclarations]: Found specification of procedure _ieee80211_hw_set [2021-11-13 18:32:03,977 INFO L138 BoogieDeclarations]: Found implementation of procedure _ieee80211_hw_set [2021-11-13 18:32:03,977 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-11-13 18:32:03,977 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-11-13 18:32:03,977 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_mcu_msg_alloc [2021-11-13 18:32:03,977 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_mcu_msg_alloc [2021-11-13 18:32:03,978 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2021-11-13 18:32:03,978 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2021-11-13 18:32:03,978 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-11-13 18:32:03,978 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-11-13 18:32:03,978 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_vco_cal [2021-11-13 18:32:03,979 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_vco_cal [2021-11-13 18:32:03,979 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_mt7601u_mcu [2021-11-13 18:32:03,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_mt7601u_mcu [2021-11-13 18:32:03,979 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2021-11-13 18:32:03,979 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2021-11-13 18:32:03,980 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_held___3 [2021-11-13 18:32:03,980 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_held___3 [2021-11-13 18:32:03,980 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_held___2 [2021-11-13 18:32:03,980 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_held___2 [2021-11-13 18:32:03,980 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_held___1 [2021-11-13 18:32:03,980 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_held___1 [2021-11-13 18:32:03,981 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_held___0 [2021-11-13 18:32:03,981 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_held___0 [2021-11-13 18:32:03,981 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~~u8~0~X~~u8~0~TO~VOID [2021-11-13 18:32:03,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~~u8~0~X~~u8~0~TO~VOID [2021-11-13 18:32:03,982 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_held___4 [2021-11-13 18:32:03,982 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_held___4 [2021-11-13 18:32:03,982 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-11-13 18:32:03,982 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-11-13 18:32:03,983 INFO L130 BoogieDeclarations]: Found specification of procedure usb_poison_urb [2021-11-13 18:32:03,983 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_poison_urb [2021-11-13 18:32:03,983 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_rr [2021-11-13 18:32:03,983 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_rr [2021-11-13 18:32:03,983 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-13 18:32:03,984 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-13 18:32:03,984 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_held [2021-11-13 18:32:03,984 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_held [2021-11-13 18:32:03,984 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_mac_set_ctrlch [2021-11-13 18:32:03,984 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_mac_set_ctrlch [2021-11-13 18:32:03,985 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2021-11-13 18:32:03,985 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2021-11-13 18:32:03,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-13 18:32:03,985 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_vendor_request [2021-11-13 18:32:03,985 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_vendor_request [2021-11-13 18:32:03,986 INFO L130 BoogieDeclarations]: Found specification of procedure mt76_set [2021-11-13 18:32:03,986 INFO L138 BoogieDeclarations]: Found implementation of procedure mt76_set [2021-11-13 18:32:03,986 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_mt7601u_dev [2021-11-13 18:32:03,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_mt7601u_dev [2021-11-13 18:32:03,986 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-13 18:32:03,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-13 18:32:03,987 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_tx [2021-11-13 18:32:03,987 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_tx [2021-11-13 18:32:03,987 INFO L130 BoogieDeclarations]: Found specification of procedure mt76_configure_filter [2021-11-13 18:32:03,987 INFO L138 BoogieDeclarations]: Found implementation of procedure mt76_configure_filter [2021-11-13 18:32:03,988 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_wr [2021-11-13 18:32:03,988 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_wr [2021-11-13 18:32:03,988 INFO L130 BoogieDeclarations]: Found specification of procedure static_key_false [2021-11-13 18:32:03,988 INFO L138 BoogieDeclarations]: Found implementation of procedure static_key_false [2021-11-13 18:32:03,988 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_nonlinear [2021-11-13 18:32:03,990 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_nonlinear [2021-11-13 18:32:03,994 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_mac_config_tsf [2021-11-13 18:32:03,994 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_mac_config_tsf [2021-11-13 18:32:03,994 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_lock_acquire [2021-11-13 18:32:03,995 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_lock_acquire [2021-11-13 18:32:03,995 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_temp_comp [2021-11-13 18:32:03,995 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_temp_comp [2021-11-13 18:32:03,995 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_rxdc_cal [2021-11-13 18:32:03,995 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_rxdc_cal [2021-11-13 18:32:03,996 INFO L130 BoogieDeclarations]: Found specification of procedure field_validate [2021-11-13 18:32:03,997 INFO L138 BoogieDeclarations]: Found implementation of procedure field_validate [2021-11-13 18:32:03,999 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_2 [2021-11-13 18:32:03,999 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_2 [2021-11-13 18:32:03,999 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_reg_atomic_mutex_of_mt7601u_dev [2021-11-13 18:32:03,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_reg_atomic_mutex_of_mt7601u_dev [2021-11-13 18:32:04,000 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_resume [2021-11-13 18:32:04,000 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_resume [2021-11-13 18:32:04,000 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2021-11-13 18:32:04,000 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2021-11-13 18:32:04,001 INFO L130 BoogieDeclarations]: Found specification of procedure IEEE80211_SKB_CB [2021-11-13 18:32:04,001 INFO L138 BoogieDeclarations]: Found implementation of procedure IEEE80211_SKB_CB [2021-11-13 18:32:04,001 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-11-13 18:32:04,001 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-11-13 18:32:04,001 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-13 18:32:04,001 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-13 18:32:04,002 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_dev [2021-11-13 18:32:04,002 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_dev [2021-11-13 18:32:04,002 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2021-11-13 18:32:04,002 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2021-11-13 18:32:04,002 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2021-11-13 18:32:04,003 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2021-11-13 18:32:04,003 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-13 18:32:04,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-13 18:32:04,003 INFO L130 BoogieDeclarations]: Found specification of procedure mt76_ampdu_action [2021-11-13 18:32:04,003 INFO L138 BoogieDeclarations]: Found implementation of procedure mt76_ampdu_action [2021-11-13 18:32:04,003 INFO L130 BoogieDeclarations]: Found specification of procedure usleep_range [2021-11-13 18:32:04,004 INFO L138 BoogieDeclarations]: Found implementation of procedure usleep_range [2021-11-13 18:32:04,004 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_addr_wr [2021-11-13 18:32:04,004 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_addr_wr [2021-11-13 18:32:04,004 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_bbp_temp [2021-11-13 18:32:04,004 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_bbp_temp [2021-11-13 18:32:04,005 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_mcu_function_select [2021-11-13 18:32:04,005 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_mcu_function_select [2021-11-13 18:32:04,005 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_2 [2021-11-13 18:32:04,005 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_2 [2021-11-13 18:32:04,005 INFO L130 BoogieDeclarations]: Found specification of procedure mt76_sta_rate_tbl_update [2021-11-13 18:32:04,005 INFO L138 BoogieDeclarations]: Found implementation of procedure mt76_sta_rate_tbl_update [2021-11-13 18:32:04,006 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_disconnect [2021-11-13 18:32:04,006 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_disconnect [2021-11-13 18:32:04,006 INFO L130 BoogieDeclarations]: Found specification of procedure fls [2021-11-13 18:32:04,006 INFO L138 BoogieDeclarations]: Found implementation of procedure fls [2021-11-13 18:32:04,006 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_chip_onoff [2021-11-13 18:32:04,006 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_chip_onoff [2021-11-13 18:32:04,007 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_set_key [2021-11-13 18:32:04,007 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_set_key [2021-11-13 18:32:04,007 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-13 18:32:04,007 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-13 18:32:04,007 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock___0 [2021-11-13 18:32:04,008 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock___0 [2021-11-13 18:32:04,008 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_notrace___2 [2021-11-13 18:32:04,008 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_notrace___2 [2021-11-13 18:32:04,008 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_notrace___1 [2021-11-13 18:32:04,008 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_notrace___1 [2021-11-13 18:32:04,008 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_num [2021-11-13 18:32:04,009 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_num [2021-11-13 18:32:04,009 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_bbp_set_bw [2021-11-13 18:32:04,009 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_bbp_set_bw [2021-11-13 18:32:04,009 INFO L130 BoogieDeclarations]: Found specification of procedure mt76_mac_wcid_set_key [2021-11-13 18:32:04,009 INFO L138 BoogieDeclarations]: Found implementation of procedure mt76_mac_wcid_set_key [2021-11-13 18:32:04,010 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 18:32:04,010 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_bbp_set_ctrlch [2021-11-13 18:32:04,010 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_bbp_set_ctrlch [2021-11-13 18:32:04,010 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-13 18:32:04,010 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_rf_wr [2021-11-13 18:32:04,010 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_rf_wr [2021-11-13 18:32:04,011 INFO L130 BoogieDeclarations]: Found specification of procedure trace_raw_output_prep [2021-11-13 18:32:04,011 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_raw_output_prep [2021-11-13 18:32:04,011 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-13 18:32:04,011 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-13 18:32:04,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-13 18:32:04,012 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_efuse_read [2021-11-13 18:32:04,012 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_efuse_read [2021-11-13 18:32:04,012 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_cleanup [2021-11-13 18:32:04,012 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_cleanup [2021-11-13 18:32:04,012 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_rf_rr [2021-11-13 18:32:04,012 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_rf_rr [2021-11-13 18:32:04,013 INFO L130 BoogieDeclarations]: Found specification of procedure skb_get_queue_mapping [2021-11-13 18:32:04,013 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_get_queue_mapping [2021-11-13 18:32:04,013 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-13 18:32:04,013 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-13 18:32:04,013 INFO L130 BoogieDeclarations]: Found specification of procedure mt76_mac_tx_rate_val [2021-11-13 18:32:04,013 INFO L138 BoogieDeclarations]: Found implementation of procedure mt76_mac_tx_rate_val [2021-11-13 18:32:04,014 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_pages [2021-11-13 18:32:04,014 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_pages [2021-11-13 18:32:04,014 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2021-11-13 18:32:04,014 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2021-11-13 18:32:04,014 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2021-11-13 18:32:04,015 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2021-11-13 18:32:04,015 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_sw_scan_complete [2021-11-13 18:32:04,015 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_sw_scan_complete [2021-11-13 18:32:04,015 INFO L130 BoogieDeclarations]: Found specification of procedure trace_define_field [2021-11-13 18:32:04,015 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_define_field [2021-11-13 18:32:04,016 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put_le32 [2021-11-13 18:32:04,016 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put_le32 [2021-11-13 18:32:04,016 INFO L130 BoogieDeclarations]: Found specification of procedure __read_once_size [2021-11-13 18:32:04,016 INFO L138 BoogieDeclarations]: Found implementation of procedure __read_once_size [2021-11-13 18:32:04,016 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_wr_copy [2021-11-13 18:32:04,016 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_wr_copy [2021-11-13 18:32:04,017 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_add_interface [2021-11-13 18:32:04,017 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_add_interface [2021-11-13 18:32:04,017 INFO L130 BoogieDeclarations]: Found specification of procedure seq_lseek [2021-11-13 18:32:04,017 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_lseek [2021-11-13 18:32:04,017 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_usb_submit_buf [2021-11-13 18:32:04,017 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_usb_submit_buf [2021-11-13 18:32:04,018 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_free_hw [2021-11-13 18:32:04,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_free_hw [2021-11-13 18:32:04,018 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_dma_fw [2021-11-13 18:32:04,018 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_dma_fw [2021-11-13 18:32:04,018 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-11-13 18:32:04,019 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-11-13 18:32:04,019 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-13 18:32:04,019 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-13 18:32:04,019 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2021-11-13 18:32:04,019 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2021-11-13 18:32:04,019 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2021-11-13 18:32:04,020 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2021-11-13 18:32:04,020 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2021-11-13 18:32:04,020 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2021-11-13 18:32:04,020 INFO L130 BoogieDeclarations]: Found specification of procedure lin2dBd [2021-11-13 18:32:04,020 INFO L138 BoogieDeclarations]: Found implementation of procedure lin2dBd [2021-11-13 18:32:04,021 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-13 18:32:04,021 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-13 18:32:04,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-13 18:32:04,021 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2021-11-13 18:32:04,021 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2021-11-13 18:32:04,022 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le32 [2021-11-13 18:32:04,022 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le32 [2021-11-13 18:32:04,022 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_to_usb_dev [2021-11-13 18:32:04,023 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_to_usb_dev [2021-11-13 18:32:04,023 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_bbp_r47_get [2021-11-13 18:32:04,023 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_bbp_r47_get [2021-11-13 18:32:04,024 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_tx_stat [2021-11-13 18:32:04,024 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_tx_stat [2021-11-13 18:32:04,024 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_sta_notify [2021-11-13 18:32:04,024 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_sta_notify [2021-11-13 18:32:04,024 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2021-11-13 18:32:04,025 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2021-11-13 18:32:04,025 INFO L130 BoogieDeclarations]: Found specification of procedure seq_read [2021-11-13 18:32:04,025 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_read [2021-11-13 18:32:04,025 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_conf_tx [2021-11-13 18:32:04,025 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_conf_tx [2021-11-13 18:32:04,025 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-13 18:32:04,026 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-13 18:32:04,026 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-13 18:32:04,026 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-13 18:32:04,026 INFO L130 BoogieDeclarations]: Found specification of procedure trace_handle_return [2021-11-13 18:32:04,026 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_handle_return [2021-11-13 18:32:04,027 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_hdrlen_from_skb [2021-11-13 18:32:04,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_hdrlen_from_skb [2021-11-13 18:32:04,027 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_mac_wcid_setup [2021-11-13 18:32:04,027 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_mac_wcid_setup [2021-11-13 18:32:04,027 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2021-11-13 18:32:04,028 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2021-11-13 18:32:04,028 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-13 18:32:04,028 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-13 18:32:04,028 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_burst_write_regs [2021-11-13 18:32:04,028 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_burst_write_regs [2021-11-13 18:32:04,028 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock_sched_notrace [2021-11-13 18:32:04,029 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock_sched_notrace [2021-11-13 18:32:04,029 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock___0 [2021-11-13 18:32:04,029 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock___0 [2021-11-13 18:32:04,029 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le32 [2021-11-13 18:32:04,029 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le32 [2021-11-13 18:32:04,029 INFO L130 BoogieDeclarations]: Found specification of procedure __free_pages [2021-11-13 18:32:04,030 INFO L138 BoogieDeclarations]: Found implementation of procedure __free_pages [2021-11-13 18:32:04,030 INFO L130 BoogieDeclarations]: Found specification of procedure is_zero_ether_addr [2021-11-13 18:32:04,030 INFO L138 BoogieDeclarations]: Found implementation of procedure is_zero_ether_addr [2021-11-13 18:32:04,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-13 18:32:04,030 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count___1 [2021-11-13 18:32:04,031 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count___1 [2021-11-13 18:32:04,031 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_write_reg_pairs [2021-11-13 18:32:04,031 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_write_reg_pairs [2021-11-13 18:32:04,031 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2021-11-13 18:32:04,031 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2021-11-13 18:32:04,031 INFO L130 BoogieDeclarations]: Found specification of procedure mt76_mac_get_key_info [2021-11-13 18:32:04,032 INFO L138 BoogieDeclarations]: Found implementation of procedure mt76_mac_get_key_info [2021-11-13 18:32:04,032 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2021-11-13 18:32:04,032 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2021-11-13 18:32:04,032 INFO L130 BoogieDeclarations]: Found specification of procedure single_open [2021-11-13 18:32:04,032 INFO L138 BoogieDeclarations]: Found implementation of procedure single_open [2021-11-13 18:32:04,033 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_sta_remove [2021-11-13 18:32:04,033 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_sta_remove [2021-11-13 18:32:04,033 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-11-13 18:32:04,033 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-11-13 18:32:04,033 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_bss_info_changed [2021-11-13 18:32:04,033 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_bss_info_changed [2021-11-13 18:32:04,034 INFO L130 BoogieDeclarations]: Found specification of procedure skb_cow [2021-11-13 18:32:04,034 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_cow [2021-11-13 18:32:04,034 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-13 18:32:04,034 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-13 18:32:04,034 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_file [2021-11-13 18:32:04,035 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_file [2021-11-13 18:32:04,035 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_wait_asic_ready [2021-11-13 18:32:04,035 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_wait_asic_ready [2021-11-13 18:32:04,035 INFO L130 BoogieDeclarations]: Found specification of procedure single_release [2021-11-13 18:32:04,035 INFO L138 BoogieDeclarations]: Found implementation of procedure single_release [2021-11-13 18:32:04,035 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_sw_scan [2021-11-13 18:32:04,036 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_sw_scan [2021-11-13 18:32:04,036 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-11-13 18:32:04,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-11-13 18:32:04,036 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2021-11-13 18:32:04,036 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2021-11-13 18:32:04,037 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_mcu_calibrate [2021-11-13 18:32:04,037 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_mcu_calibrate [2021-11-13 18:32:04,037 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_mcu_msg_send [2021-11-13 18:32:04,037 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_mcu_msg_send [2021-11-13 18:32:04,037 INFO L130 BoogieDeclarations]: Found specification of procedure firmware_running [2021-11-13 18:32:04,038 INFO L138 BoogieDeclarations]: Found implementation of procedure firmware_running [2021-11-13 18:32:04,038 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_rmw [2021-11-13 18:32:04,038 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_rmw [2021-11-13 18:32:04,038 INFO L130 BoogieDeclarations]: Found specification of procedure mt76_poll [2021-11-13 18:32:04,038 INFO L138 BoogieDeclarations]: Found implementation of procedure mt76_poll [2021-11-13 18:32:04,038 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2021-11-13 18:32:04,039 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2021-11-13 18:32:04,039 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_set_power_rate [2021-11-13 18:32:04,039 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_set_power_rate [2021-11-13 18:32:04,039 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2021-11-13 18:32:04,039 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2021-11-13 18:32:04,040 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_has_tssi [2021-11-13 18:32:04,040 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_has_tssi [2021-11-13 18:32:04,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 18:32:04,040 INFO L130 BoogieDeclarations]: Found specification of procedure mt76_poll_msec [2021-11-13 18:32:04,040 INFO L138 BoogieDeclarations]: Found implementation of procedure mt76_poll_msec [2021-11-13 18:32:04,040 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2021-11-13 18:32:04,041 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2021-11-13 18:32:06,755 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-13 18:34:03,514 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 18:34:03,514 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-13 18:34:03,523 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:34:03 BoogieIcfgContainer [2021-11-13 18:34:03,523 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 18:34:03,525 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 18:34:03,525 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 18:34:03,529 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 18:34:03,530 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 06:31:45" (1/3) ... [2021-11-13 18:34:03,530 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9f18d10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:34:03, skipping insertion in model container [2021-11-13 18:34:03,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:32:00" (2/3) ... [2021-11-13 18:34:03,531 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9f18d10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:34:03, skipping insertion in model container [2021-11-13 18:34:03,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:34:03" (3/3) ... [2021-11-13 18:34:03,533 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--mediatek--mt7601u--mt7601u.ko-entry_point.cil.out.i [2021-11-13 18:34:03,539 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 18:34:03,539 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-13 18:34:03,620 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 18:34:03,628 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-13 18:34:03,629 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-13 18:34:03,778 INFO L276 IsEmpty]: Start isEmpty. Operand has 5411 states, 3638 states have (on average 1.3697086311159978) internal successors, (4983), 3802 states have internal predecessors, (4983), 1540 states have call successors, (1540), 232 states have call predecessors, (1540), 231 states have return successors, (1501), 1497 states have call predecessors, (1501), 1501 states have call successors, (1501) [2021-11-13 18:34:03,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-13 18:34:03,810 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:34:03,811 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:34:03,816 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:34:03,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:34:03,822 INFO L85 PathProgramCache]: Analyzing trace with hash -872272598, now seen corresponding path program 1 times [2021-11-13 18:34:03,845 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:34:03,846 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662610980] [2021-11-13 18:34:03,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:34:03,849 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:34:05,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:34:05,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 18:34:05,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:34:05,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:34:05,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:34:05,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:34:05,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:34:05,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-13 18:34:05,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:34:06,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:34:06,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:34:06,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:34:06,058 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:34:06,058 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662610980] [2021-11-13 18:34:06,060 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662610980] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:34:06,060 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:34:06,060 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 18:34:06,062 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757417578] [2021-11-13 18:34:06,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:34:06,070 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 18:34:06,070 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:34:06,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 18:34:06,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:34:06,131 INFO L87 Difference]: Start difference. First operand has 5411 states, 3638 states have (on average 1.3697086311159978) internal successors, (4983), 3802 states have internal predecessors, (4983), 1540 states have call successors, (1540), 232 states have call predecessors, (1540), 231 states have return successors, (1501), 1497 states have call predecessors, (1501), 1501 states have call successors, (1501) Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-13 18:34:08,499 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.34s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:34:10,587 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:34:12,621 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:34:13,836 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:34:15,729 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:34:17,748 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:34:26,409 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:34:28,422 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:34:33,727 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:34:36,178 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:34:39,177 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:34:46,902 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:34:58,966 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:35:01,028 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:35:03,348 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:35:04,932 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:35:06,945 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:35:11,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:35:11,493 INFO L93 Difference]: Finished difference Result 11897 states and 18958 transitions. [2021-11-13 18:35:11,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 18:35:11,496 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 69 [2021-11-13 18:35:11,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:35:11,608 INFO L225 Difference]: With dead ends: 11897 [2021-11-13 18:35:11,608 INFO L226 Difference]: Without dead ends: 6437 [2021-11-13 18:35:11,702 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-13 18:35:11,706 INFO L933 BasicCegarLoop]: 8419 mSDtfsCounter, 3623 mSDsluCounter, 11199 mSDsCounter, 0 mSdLazyCounter, 6196 mSolverCounterSat, 4016 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 60678.11ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3821 SdHoareTripleChecker+Valid, 19618 SdHoareTripleChecker+Invalid, 10224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 200.97ms SdHoareTripleChecker+Time, 4016 IncrementalHoareTripleChecker+Valid, 6196 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 64104.63ms IncrementalHoareTripleChecker+Time [2021-11-13 18:35:11,707 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3821 Valid, 19618 Invalid, 10224 Unknown, 0 Unchecked, 200.97ms Time], IncrementalHoareTripleChecker [4016 Valid, 6196 Invalid, 12 Unknown, 0 Unchecked, 64104.63ms Time] [2021-11-13 18:35:11,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6437 states. [2021-11-13 18:35:12,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6437 to 5357. [2021-11-13 18:35:12,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5357 states, 3625 states have (on average 1.3572413793103448) internal successors, (4920), 3748 states have internal predecessors, (4920), 1501 states have call successors, (1501), 231 states have call predecessors, (1501), 230 states have return successors, (1483), 1479 states have call predecessors, (1483), 1483 states have call successors, (1483) [2021-11-13 18:35:12,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5357 states to 5357 states and 7904 transitions. [2021-11-13 18:35:12,310 INFO L78 Accepts]: Start accepts. Automaton has 5357 states and 7904 transitions. Word has length 69 [2021-11-13 18:35:12,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:35:12,311 INFO L470 AbstractCegarLoop]: Abstraction has 5357 states and 7904 transitions. [2021-11-13 18:35:12,312 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-13 18:35:12,312 INFO L276 IsEmpty]: Start isEmpty. Operand 5357 states and 7904 transitions. [2021-11-13 18:35:12,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-13 18:35:12,319 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:35:12,319 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:35:12,319 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-13 18:35:12,320 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:35:12,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:35:12,321 INFO L85 PathProgramCache]: Analyzing trace with hash -438543512, now seen corresponding path program 1 times [2021-11-13 18:35:12,321 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:35:12,321 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770371276] [2021-11-13 18:35:12,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:35:12,322 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:35:12,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:35:13,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 18:35:13,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:35:13,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:35:13,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:35:13,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:35:13,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:35:13,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-13 18:35:13,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:35:13,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:35:13,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:35:13,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:35:13,902 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:35:13,904 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770371276] [2021-11-13 18:35:13,904 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770371276] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:35:13,904 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:35:13,904 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 18:35:13,905 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584423294] [2021-11-13 18:35:13,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:35:13,907 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 18:35:13,907 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:35:13,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 18:35:13,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-13 18:35:13,909 INFO L87 Difference]: Start difference. First operand 5357 states and 7904 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (6), 5 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2021-11-13 18:35:16,290 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.38s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:35:18,353 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:35:20,127 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:35:21,173 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:35:28,298 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:35:32,534 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:35:38,130 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:35:43,857 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:35:50,964 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:36:11,143 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:36:14,493 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:36:22,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:36:22,524 INFO L93 Difference]: Finished difference Result 18018 states and 27935 transitions. [2021-11-13 18:36:22,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 18:36:22,525 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (6), 5 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 69 [2021-11-13 18:36:22,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:36:22,714 INFO L225 Difference]: With dead ends: 18018 [2021-11-13 18:36:22,714 INFO L226 Difference]: Without dead ends: 12672 [2021-11-13 18:36:22,773 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-11-13 18:36:22,777 INFO L933 BasicCegarLoop]: 10019 mSDtfsCounter, 17691 mSDsluCounter, 12107 mSDsCounter, 0 mSdLazyCounter, 6828 mSolverCounterSat, 13057 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 61844.65ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 18796 SdHoareTripleChecker+Valid, 22126 SdHoareTripleChecker+Invalid, 19891 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 212.29ms SdHoareTripleChecker+Time, 13057 IncrementalHoareTripleChecker+Valid, 6828 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 67110.94ms IncrementalHoareTripleChecker+Time [2021-11-13 18:36:22,778 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18796 Valid, 22126 Invalid, 19891 Unknown, 0 Unchecked, 212.29ms Time], IncrementalHoareTripleChecker [13057 Valid, 6828 Invalid, 6 Unknown, 0 Unchecked, 67110.94ms Time] [2021-11-13 18:36:22,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12672 states. [2021-11-13 18:36:23,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12672 to 10510. [2021-11-13 18:36:23,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10510 states, 7119 states have (on average 1.3588987217305801) internal successors, (9674), 7349 states have internal predecessors, (9674), 2931 states have call successors, (2931), 459 states have call predecessors, (2931), 459 states have return successors, (2917), 2904 states have call predecessors, (2917), 2913 states have call successors, (2917) [2021-11-13 18:36:23,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10510 states to 10510 states and 15522 transitions. [2021-11-13 18:36:23,824 INFO L78 Accepts]: Start accepts. Automaton has 10510 states and 15522 transitions. Word has length 69 [2021-11-13 18:36:23,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:36:23,825 INFO L470 AbstractCegarLoop]: Abstraction has 10510 states and 15522 transitions. [2021-11-13 18:36:23,826 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (6), 5 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2021-11-13 18:36:23,827 INFO L276 IsEmpty]: Start isEmpty. Operand 10510 states and 15522 transitions. [2021-11-13 18:36:23,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-11-13 18:36:23,839 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:36:23,840 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:36:23,840 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-13 18:36:23,841 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:36:23,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:36:23,842 INFO L85 PathProgramCache]: Analyzing trace with hash -1429976943, now seen corresponding path program 1 times [2021-11-13 18:36:23,842 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:36:23,842 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897549454] [2021-11-13 18:36:23,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:36:23,843 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:36:24,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:36:25,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 18:36:25,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:36:25,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:36:25,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:36:25,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:36:25,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:36:25,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-13 18:36:25,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:36:25,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:36:25,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:36:25,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-11-13 18:36:25,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:36:25,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:36:25,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:36:25,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:36:25,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:36:25,639 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-13 18:36:25,640 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:36:25,640 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897549454] [2021-11-13 18:36:25,640 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897549454] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:36:25,641 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:36:25,641 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 18:36:25,641 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748448466] [2021-11-13 18:36:25,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:36:25,642 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 18:36:25,642 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:36:25,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 18:36:25,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-13 18:36:25,644 INFO L87 Difference]: Start difference. First operand 10510 states and 15522 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-11-13 18:36:27,898 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:36:30,436 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:36:39,704 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:36:44,928 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:36:52,464 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:37:07,324 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:37:10,172 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:37:14,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:37:14,656 INFO L93 Difference]: Finished difference Result 15298 states and 23979 transitions. [2021-11-13 18:37:14,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 18:37:14,657 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 88 [2021-11-13 18:37:14,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:37:14,792 INFO L225 Difference]: With dead ends: 15298 [2021-11-13 18:37:14,792 INFO L226 Difference]: Without dead ends: 15294 [2021-11-13 18:37:14,810 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-11-13 18:37:14,812 INFO L933 BasicCegarLoop]: 9418 mSDtfsCounter, 12355 mSDsluCounter, 10352 mSDsCounter, 0 mSdLazyCounter, 6745 mSolverCounterSat, 6536 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 44588.91ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13370 SdHoareTripleChecker+Valid, 19770 SdHoareTripleChecker+Invalid, 13288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 135.86ms SdHoareTripleChecker+Time, 6536 IncrementalHoareTripleChecker+Valid, 6745 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 47988.26ms IncrementalHoareTripleChecker+Time [2021-11-13 18:37:14,812 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13370 Valid, 19770 Invalid, 13288 Unknown, 0 Unchecked, 135.86ms Time], IncrementalHoareTripleChecker [6536 Valid, 6745 Invalid, 7 Unknown, 0 Unchecked, 47988.26ms Time] [2021-11-13 18:37:14,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15294 states. [2021-11-13 18:37:15,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15294 to 12440. [2021-11-13 18:37:15,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12440 states, 8437 states have (on average 1.359487969657461) internal successors, (11470), 8727 states have internal predecessors, (11470), 3407 states have call successors, (3407), 599 states have call predecessors, (3407), 595 states have return successors, (3394), 3377 states have call predecessors, (3394), 3390 states have call successors, (3394) [2021-11-13 18:37:15,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12440 states to 12440 states and 18271 transitions. [2021-11-13 18:37:15,988 INFO L78 Accepts]: Start accepts. Automaton has 12440 states and 18271 transitions. Word has length 88 [2021-11-13 18:37:15,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:37:15,991 INFO L470 AbstractCegarLoop]: Abstraction has 12440 states and 18271 transitions. [2021-11-13 18:37:15,991 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-11-13 18:37:15,991 INFO L276 IsEmpty]: Start isEmpty. Operand 12440 states and 18271 transitions. [2021-11-13 18:37:15,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-11-13 18:37:15,999 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:37:15,999 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:37:16,000 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-13 18:37:16,000 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:37:16,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:37:16,001 INFO L85 PathProgramCache]: Analyzing trace with hash -1382114060, now seen corresponding path program 1 times [2021-11-13 18:37:16,001 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:37:16,001 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923058685] [2021-11-13 18:37:16,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:37:16,002 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:37:16,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:17,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 18:37:17,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:17,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:37:17,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:17,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:37:17,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:17,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-13 18:37:17,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:17,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:37:17,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:17,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-11-13 18:37:17,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:17,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:37:17,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:17,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:37:17,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:17,404 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-13 18:37:17,404 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:37:17,404 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923058685] [2021-11-13 18:37:17,405 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923058685] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:37:17,405 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:37:17,405 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 18:37:17,405 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224593970] [2021-11-13 18:37:17,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:37:17,407 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 18:37:17,407 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:37:17,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 18:37:17,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-13 18:37:17,409 INFO L87 Difference]: Start difference. First operand 12440 states and 18271 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-11-13 18:37:19,782 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.37s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:37:21,869 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:37:23,550 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:37:25,445 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:37:27,457 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:37:34,471 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:37:36,488 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:37:43,278 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:37:50,540 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:38:11,043 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:38:13,110 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:38:16,228 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:38:18,235 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:38:24,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:38:24,393 INFO L93 Difference]: Finished difference Result 15801 states and 24700 transitions. [2021-11-13 18:38:24,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 18:38:24,394 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 89 [2021-11-13 18:38:24,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:38:24,516 INFO L225 Difference]: With dead ends: 15801 [2021-11-13 18:38:24,516 INFO L226 Difference]: Without dead ends: 15798 [2021-11-13 18:38:24,534 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-11-13 18:38:24,535 INFO L933 BasicCegarLoop]: 9209 mSDtfsCounter, 12923 mSDsluCounter, 10300 mSDsCounter, 0 mSdLazyCounter, 6702 mSolverCounterSat, 6585 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 61464.10ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13948 SdHoareTripleChecker+Valid, 19509 SdHoareTripleChecker+Invalid, 13298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 147.05ms SdHoareTripleChecker+Time, 6585 IncrementalHoareTripleChecker+Valid, 6702 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 65746.24ms IncrementalHoareTripleChecker+Time [2021-11-13 18:38:24,536 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13948 Valid, 19509 Invalid, 13298 Unknown, 0 Unchecked, 147.05ms Time], IncrementalHoareTripleChecker [6585 Valid, 6702 Invalid, 11 Unknown, 0 Unchecked, 65746.24ms Time] [2021-11-13 18:38:24,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15798 states. [2021-11-13 18:38:25,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15798 to 12788. [2021-11-13 18:38:25,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12788 states, 8678 states have (on average 1.3591841438119383) internal successors, (11795), 8977 states have internal predecessors, (11795), 3479 states have call successors, (3479), 634 states have call predecessors, (3479), 630 states have return successors, (3467), 3450 states have call predecessors, (3467), 3463 states have call successors, (3467) [2021-11-13 18:38:25,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12788 states to 12788 states and 18741 transitions. [2021-11-13 18:38:25,700 INFO L78 Accepts]: Start accepts. Automaton has 12788 states and 18741 transitions. Word has length 89 [2021-11-13 18:38:25,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:38:25,701 INFO L470 AbstractCegarLoop]: Abstraction has 12788 states and 18741 transitions. [2021-11-13 18:38:25,702 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-11-13 18:38:25,702 INFO L276 IsEmpty]: Start isEmpty. Operand 12788 states and 18741 transitions. [2021-11-13 18:38:25,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-11-13 18:38:25,712 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:38:25,713 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:38:25,713 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-13 18:38:25,713 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:38:25,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:38:25,714 INFO L85 PathProgramCache]: Analyzing trace with hash 101640180, now seen corresponding path program 1 times [2021-11-13 18:38:25,714 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:38:25,714 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498553752] [2021-11-13 18:38:25,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:38:25,715 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:38:26,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:38:26,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 18:38:26,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:38:26,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:38:26,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:38:26,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:38:26,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:38:26,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-13 18:38:26,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:38:26,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:38:26,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:38:26,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-11-13 18:38:26,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:38:26,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:38:26,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:38:27,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:38:27,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:38:27,029 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-13 18:38:27,029 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:38:27,030 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498553752] [2021-11-13 18:38:27,030 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498553752] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:38:27,030 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:38:27,030 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 18:38:27,031 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058251124] [2021-11-13 18:38:27,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:38:27,031 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 18:38:27,032 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:38:27,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 18:38:27,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-13 18:38:27,033 INFO L87 Difference]: Start difference. First operand 12788 states and 18741 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 3 states have internal predecessors, (64), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-11-13 18:38:29,393 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.36s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:38:31,465 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:38:33,556 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:38:36,545 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:38:38,559 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:38:40,308 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:38:49,981 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:38:52,000 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:38:54,024 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:38:58,937 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:39:08,406 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:39:29,382 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:39:31,442 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:39:33,495 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:39:36,688 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:39:38,696 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:39:40,706 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:39:47,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:39:47,731 INFO L93 Difference]: Finished difference Result 15800 states and 24698 transitions. [2021-11-13 18:39:47,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 18:39:47,732 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 3 states have internal predecessors, (64), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 90 [2021-11-13 18:39:47,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:39:47,843 INFO L225 Difference]: With dead ends: 15800 [2021-11-13 18:39:47,844 INFO L226 Difference]: Without dead ends: 15797 [2021-11-13 18:39:47,862 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-11-13 18:39:47,863 INFO L933 BasicCegarLoop]: 9207 mSDtfsCounter, 12018 mSDsluCounter, 14070 mSDsCounter, 0 mSdLazyCounter, 8720 mSolverCounterSat, 6026 mSolverCounterUnsat, 14 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 74854.16ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13051 SdHoareTripleChecker+Valid, 23277 SdHoareTripleChecker+Invalid, 14760 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 164.99ms SdHoareTripleChecker+Time, 6026 IncrementalHoareTripleChecker+Valid, 8720 IncrementalHoareTripleChecker+Invalid, 14 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 79272.43ms IncrementalHoareTripleChecker+Time [2021-11-13 18:39:47,864 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13051 Valid, 23277 Invalid, 14760 Unknown, 0 Unchecked, 164.99ms Time], IncrementalHoareTripleChecker [6026 Valid, 8720 Invalid, 14 Unknown, 0 Unchecked, 79272.43ms Time] [2021-11-13 18:39:47,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15797 states. [2021-11-13 18:39:48,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15797 to 12787. [2021-11-13 18:39:48,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12787 states, 8678 states have (on average 1.3590689098870707) internal successors, (11794), 8976 states have internal predecessors, (11794), 3478 states have call successors, (3478), 634 states have call predecessors, (3478), 630 states have return successors, (3467), 3450 states have call predecessors, (3467), 3463 states have call successors, (3467) [2021-11-13 18:39:49,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12787 states to 12787 states and 18739 transitions. [2021-11-13 18:39:49,047 INFO L78 Accepts]: Start accepts. Automaton has 12787 states and 18739 transitions. Word has length 90 [2021-11-13 18:39:49,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:39:49,049 INFO L470 AbstractCegarLoop]: Abstraction has 12787 states and 18739 transitions. [2021-11-13 18:39:49,049 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 3 states have internal predecessors, (64), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-11-13 18:39:49,050 INFO L276 IsEmpty]: Start isEmpty. Operand 12787 states and 18739 transitions. [2021-11-13 18:39:49,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-11-13 18:39:49,059 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:39:49,059 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:39:49,060 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-13 18:39:49,060 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:39:49,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:39:49,061 INFO L85 PathProgramCache]: Analyzing trace with hash -1146613769, now seen corresponding path program 1 times [2021-11-13 18:39:49,061 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:39:49,061 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547408900] [2021-11-13 18:39:49,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:39:49,062 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:39:49,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:50,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 18:39:50,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:50,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:39:50,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:50,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:39:50,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:50,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-13 18:39:50,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:50,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:39:50,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:50,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-11-13 18:39:50,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:50,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:39:50,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:50,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:39:50,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:50,320 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-13 18:39:50,320 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:39:50,320 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547408900] [2021-11-13 18:39:50,321 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547408900] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:39:50,321 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:39:50,321 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 18:39:50,321 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052972316] [2021-11-13 18:39:50,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:39:50,323 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 18:39:50,323 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:39:50,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 18:39:50,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-13 18:39:50,324 INFO L87 Difference]: Start difference. First operand 12787 states and 18739 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 3 states have internal predecessors, (65), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-11-13 18:39:52,708 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.38s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:39:54,766 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:39:56,809 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:39:58,823 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:40:00,452 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:40:02,121 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:40:10,786 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:40:12,809 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:40:21,044 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:40:28,972 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:40:50,767 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:40:52,832 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:40:55,175 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:40:56,542 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:40:58,558 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:41:04,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:41:04,658 INFO L93 Difference]: Finished difference Result 15799 states and 24696 transitions. [2021-11-13 18:41:04,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 18:41:04,660 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 3 states have internal predecessors, (65), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 91 [2021-11-13 18:41:04,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:41:04,758 INFO L225 Difference]: With dead ends: 15799 [2021-11-13 18:41:04,758 INFO L226 Difference]: Without dead ends: 15796 [2021-11-13 18:41:04,771 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-11-13 18:41:04,772 INFO L933 BasicCegarLoop]: 9208 mSDtfsCounter, 11975 mSDsluCounter, 14119 mSDsCounter, 0 mSdLazyCounter, 8736 mSolverCounterSat, 6017 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 68797.71ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 12988 SdHoareTripleChecker+Valid, 23327 SdHoareTripleChecker+Invalid, 14763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 158.40ms SdHoareTripleChecker+Time, 6017 IncrementalHoareTripleChecker+Valid, 8736 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 73131.10ms IncrementalHoareTripleChecker+Time [2021-11-13 18:41:04,772 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12988 Valid, 23327 Invalid, 14763 Unknown, 0 Unchecked, 158.40ms Time], IncrementalHoareTripleChecker [6017 Valid, 8736 Invalid, 10 Unknown, 0 Unchecked, 73131.10ms Time] [2021-11-13 18:41:04,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15796 states. [2021-11-13 18:41:05,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15796 to 12786. [2021-11-13 18:41:05,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12786 states, 8678 states have (on average 1.3589536759622032) internal successors, (11793), 8975 states have internal predecessors, (11793), 3477 states have call successors, (3477), 634 states have call predecessors, (3477), 630 states have return successors, (3467), 3450 states have call predecessors, (3467), 3463 states have call successors, (3467) [2021-11-13 18:41:05,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12786 states to 12786 states and 18737 transitions. [2021-11-13 18:41:05,662 INFO L78 Accepts]: Start accepts. Automaton has 12786 states and 18737 transitions. Word has length 91 [2021-11-13 18:41:05,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:41:05,663 INFO L470 AbstractCegarLoop]: Abstraction has 12786 states and 18737 transitions. [2021-11-13 18:41:05,663 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 3 states have internal predecessors, (65), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-11-13 18:41:05,663 INFO L276 IsEmpty]: Start isEmpty. Operand 12786 states and 18737 transitions. [2021-11-13 18:41:05,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-11-13 18:41:05,669 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:41:05,669 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:41:05,669 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-13 18:41:05,670 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:41:05,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:41:05,670 INFO L85 PathProgramCache]: Analyzing trace with hash -1187775657, now seen corresponding path program 1 times [2021-11-13 18:41:05,670 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:41:05,671 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112008532] [2021-11-13 18:41:05,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:41:05,671 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:41:06,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:06,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 18:41:06,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:06,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:41:06,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:06,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:41:06,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:06,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-13 18:41:06,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:06,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:41:06,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:06,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-11-13 18:41:06,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:06,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:41:06,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:06,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:41:06,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:06,979 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-13 18:41:06,980 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:41:06,980 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112008532] [2021-11-13 18:41:06,980 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112008532] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:41:06,980 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:41:06,981 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 18:41:06,981 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327487901] [2021-11-13 18:41:06,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:41:06,981 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 18:41:06,982 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:41:06,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 18:41:06,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-13 18:41:06,982 INFO L87 Difference]: Start difference. First operand 12786 states and 18737 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-11-13 18:41:09,313 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.33s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:41:11,042 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:41:12,634 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:41:14,047 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:41:21,225 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:41:28,546 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:41:35,558 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:41:55,543 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:41:57,984 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:41:59,999 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:42:07,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:42:07,179 INFO L93 Difference]: Finished difference Result 19830 states and 30641 transitions. [2021-11-13 18:42:07,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 18:42:07,181 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 92 [2021-11-13 18:42:07,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:42:07,324 INFO L225 Difference]: With dead ends: 19830 [2021-11-13 18:42:07,324 INFO L226 Difference]: Without dead ends: 19826 [2021-11-13 18:42:07,343 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-11-13 18:42:07,344 INFO L933 BasicCegarLoop]: 9353 mSDtfsCounter, 12629 mSDsluCounter, 11167 mSDsCounter, 0 mSdLazyCounter, 7059 mSolverCounterSat, 6691 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 54801.67ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13626 SdHoareTripleChecker+Valid, 20520 SdHoareTripleChecker+Invalid, 13756 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 145.37ms SdHoareTripleChecker+Time, 6691 IncrementalHoareTripleChecker+Valid, 7059 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 58803.19ms IncrementalHoareTripleChecker+Time [2021-11-13 18:42:07,345 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13626 Valid, 20520 Invalid, 13756 Unknown, 0 Unchecked, 145.37ms Time], IncrementalHoareTripleChecker [6691 Valid, 7059 Invalid, 6 Unknown, 0 Unchecked, 58803.19ms Time] [2021-11-13 18:42:07,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19826 states. [2021-11-13 18:42:08,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19826 to 15959. [2021-11-13 18:42:08,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15959 states, 10870 states have (on average 1.3598896044158233) internal successors, (14782), 11261 states have internal predecessors, (14782), 4235 states have call successors, (4235), 857 states have call predecessors, (4235), 853 states have return successors, (4227), 4206 states have call predecessors, (4227), 4223 states have call successors, (4227) [2021-11-13 18:42:08,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15959 states to 15959 states and 23244 transitions. [2021-11-13 18:42:08,559 INFO L78 Accepts]: Start accepts. Automaton has 15959 states and 23244 transitions. Word has length 92 [2021-11-13 18:42:08,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:42:08,560 INFO L470 AbstractCegarLoop]: Abstraction has 15959 states and 23244 transitions. [2021-11-13 18:42:08,560 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-11-13 18:42:08,560 INFO L276 IsEmpty]: Start isEmpty. Operand 15959 states and 23244 transitions. [2021-11-13 18:42:08,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-11-13 18:42:08,566 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:42:08,566 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:42:08,566 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-13 18:42:08,567 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:42:08,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:42:08,567 INFO L85 PathProgramCache]: Analyzing trace with hash 1179887187, now seen corresponding path program 1 times [2021-11-13 18:42:08,567 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:42:08,568 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14455749] [2021-11-13 18:42:08,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:42:08,568 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:42:09,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:42:09,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 18:42:09,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:42:09,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:42:09,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:42:09,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:42:09,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:42:09,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-13 18:42:09,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:42:09,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:42:09,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:42:09,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-11-13 18:42:09,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:42:09,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:42:09,735 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:42:09,735 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14455749] [2021-11-13 18:42:09,736 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14455749] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:42:09,736 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:42:09,736 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 18:42:09,736 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923516733] [2021-11-13 18:42:09,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:42:09,737 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 18:42:09,737 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:42:09,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 18:42:09,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-13 18:42:09,738 INFO L87 Difference]: Start difference. First operand 15959 states and 23244 transitions. Second operand has 6 states, 6 states have (on average 12.5) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-11-13 18:42:12,009 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:42:15,314 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:42:17,124 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:42:18,439 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:42:28,717 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:42:34,039 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:42:37,258 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:42:48,086 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:42:59,899 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:43:12,134 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:43:15,129 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:43:19,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:43:19,604 INFO L93 Difference]: Finished difference Result 47394 states and 71541 transitions. [2021-11-13 18:43:19,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 18:43:19,605 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 92 [2021-11-13 18:43:19,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:43:19,819 INFO L225 Difference]: With dead ends: 47394 [2021-11-13 18:43:19,819 INFO L226 Difference]: Without dead ends: 31446 [2021-11-13 18:43:19,924 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-11-13 18:43:19,925 INFO L933 BasicCegarLoop]: 10709 mSDtfsCounter, 10101 mSDsluCounter, 16421 mSDsCounter, 0 mSdLazyCounter, 8515 mSolverCounterSat, 7111 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 63040.82ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10794 SdHoareTripleChecker+Valid, 27130 SdHoareTripleChecker+Invalid, 15633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 170.56ms SdHoareTripleChecker+Time, 7111 IncrementalHoareTripleChecker+Valid, 8515 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 67626.44ms IncrementalHoareTripleChecker+Time [2021-11-13 18:43:19,925 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10794 Valid, 27130 Invalid, 15633 Unknown, 0 Unchecked, 170.56ms Time], IncrementalHoareTripleChecker [7111 Valid, 8515 Invalid, 7 Unknown, 0 Unchecked, 67626.44ms Time] [2021-11-13 18:43:19,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31446 states. [2021-11-13 18:43:21,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31446 to 25484. [2021-11-13 18:43:21,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25484 states, 17525 states have (on average 1.3655920114122682) internal successors, (23932), 18128 states have internal predecessors, (23932), 6609 states have call successors, (6609), 1353 states have call predecessors, (6609), 1349 states have return successors, (6605), 6570 states have call predecessors, (6605), 6597 states have call successors, (6605) [2021-11-13 18:43:22,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25484 states to 25484 states and 37146 transitions. [2021-11-13 18:43:22,130 INFO L78 Accepts]: Start accepts. Automaton has 25484 states and 37146 transitions. Word has length 92 [2021-11-13 18:43:22,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:43:22,131 INFO L470 AbstractCegarLoop]: Abstraction has 25484 states and 37146 transitions. [2021-11-13 18:43:22,131 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-11-13 18:43:22,131 INFO L276 IsEmpty]: Start isEmpty. Operand 25484 states and 37146 transitions. [2021-11-13 18:43:22,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-11-13 18:43:22,138 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:43:22,139 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:43:22,139 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-13 18:43:22,139 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:43:22,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:43:22,140 INFO L85 PathProgramCache]: Analyzing trace with hash 1831177978, now seen corresponding path program 1 times [2021-11-13 18:43:22,140 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:43:22,140 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163603381] [2021-11-13 18:43:22,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:43:22,141 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:43:22,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:43:23,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 18:43:23,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:43:23,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:43:23,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:43:23,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:43:23,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:43:23,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-13 18:43:23,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:43:23,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:43:23,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:43:23,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-11-13 18:43:23,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:43:23,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:43:23,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:43:23,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:43:23,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:43:23,347 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-13 18:43:23,347 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:43:23,347 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163603381] [2021-11-13 18:43:23,348 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163603381] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:43:23,348 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:43:23,348 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 18:43:23,348 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791133514] [2021-11-13 18:43:23,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:43:23,350 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 18:43:23,350 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:43:23,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 18:43:23,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-13 18:43:23,351 INFO L87 Difference]: Start difference. First operand 25484 states and 37146 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-11-13 18:43:25,706 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.35s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:43:27,799 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:43:29,221 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:43:31,235 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:43:38,848 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:43:44,014 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:43:47,095 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:43:52,898 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:43:55,161 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:44:07,669 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []